1. The utility model provides a fill electric pile and fall device of making an uproar, includes pile body (1) and cooling fan (2) that charge that link to each other, its characterized in that:

the outer side of a heat dissipation fan (2) is connected with a filtering and vibrating box (3), a fan shell (4) matched with the heat dissipation fan (2) is arranged in the filtering and vibrating box (3), the heat dissipation fan (2) is embedded at one side of the fan shell (4), the other side of the fan shell (4) is connected with a noise reduction body (5), the noise reduction body (5) comprises a cone noise reduction device (51), cone fixing blocks (52) and a noise reduction hole area (53), the cone noise reduction device (51) is connected with the inner wall of the noise reduction body (5) through the cone fixing blocks (52), and the noise reduction hole area (53) formed by porous medium materials is arranged between every two adjacent cone fixing blocks (52);

each surface of the cone noise reduction device (51) is provided with a noise reflection sheet (511) and a noise reduction hole (512), the bottom of the cone noise reduction device (51) is provided with a cone lower cover (513), and the cone noise reduction device is fixedly connected with the cone fixing block (52) through the cone lower cover (513).

2. The charging pile noise reduction device according to claim 1, characterized in that:

the inner wall center of the cone noise reduction device (51) is connected with a circular cap seat (7), a supporting device (8) which is matched with each other is arranged in the inner cavity of the cone noise reduction device (51), the supporting device (8) comprises a movable frame (81) at the upper part, a circular cap connecting piece (82) and a supporting rod (83) at the lower part, the upper end of the movable frame (81) is connected with the top end of the cone noise reduction device (51), the lower extreme is equipped with globular connecting block (81 a), and globular connecting block (81 a) sliding connection is downthehole in the upper end of bracing piece (83) circular, and the lower extreme fixed connection of bracing piece (83) is in the centre portion of centrum lower cover (513), and the one end of three circular cap connecting piece (82) is passed through sliding block (9) and is connected on moving frame (81), and the other end corresponds with circular cap seat (7) and links to each other, and the contained angle between two adjacent circular cap connecting piece (82) is 120.

3. The charging pile noise reduction device according to claim 2, characterized in that:

circular cap connecting piece (82) are including hemisphere cap (821), arc connecting piece (822), connecting rod (823), fixed section of thick bamboo (824) and shape memory spring (825), the bottom of hemisphere cap (821) is equipped with arc groove (821 a), arc connecting piece (822) are connected in arc groove (821 a) through fixing bolt (10), the upper end rethread undersize bolt (11) of connecting rod (823) link to each other with the middle part of arc connecting piece (822), the upper portion of fixed section of thick bamboo (824) is equipped with upper end cover (824 a), the lower part is equipped with lower end cover (824 b), even have shape memory spring (825) between upper end cover (824 a) and lower end cover (824 b), the lower extreme of connecting rod (823) links to each other with upper end cover (824 a) of fixed section of thick bamboo (824), lower end cover (824 b) and sliding block (9) fixed connection of fixed section of thick bamboo (824).

4. The charging pile noise reduction device according to claim 3, characterized in that:

the shape memory spring (825) is a temperature sensitive shape memory spring.

5. The charging pile noise reduction device according to any one of claims 1 to 4, characterized in that:

the cone fixed blocks (52) are distributed on the inner wall of the noise reduction body (5) at equal intervals, the axis of each cone fixed block (52) is parallel to the axis of the noise reduction body (5), one side of each cone fixed block (52) is an arc-shaped surface, and the radian of each cone fixed block is identical to that of the inner wall of the noise reduction body (5).

6. The charging pile noise reduction device according to any one of claims 1 to 4, characterized in that:

the inner wall of the noise reduction body (5) is provided with a group of fixing clamping grooves (54) matched with the cone fixing blocks (52), each cone fixing block (52) is fixedly connected with the corresponding fixing clamping groove (54), each cone fixing block (52) is connected with a regular tetrahedron cone noise reduction device (51), and the cone noise reduction devices (51) are also arranged along the axis of the cone fixing blocks (52).

7. The charging pile noise reduction device according to any one of claims 1 to 4, characterized in that:

the noise reflection sheet (511) is arranged in the middle of each surface of the cone noise reduction device (51), and the noise reduction holes (512) are distributed around the noise reflection sheet (511).

8. The charging pile noise reduction device according to any one of claims 1 to 4, characterized in that:

the seismic filtering box (3) comprises a seismic filtering gasket made of a seismic filtering material.

9. The charging pile noise reduction device according to any one of claims 1 to 4, characterized in that:

the end face of the noise reduction body (5) is connected with a dustproof device (6), the dustproof device (6) comprises an electrostatic dustproof net (61) with one face matched with the end face of the noise reduction body (5), a pair of arc-shaped plates (62) are connected in the dustproof device (6), and the arc-shaped plates (62) are oppositely arranged and are respectively fixed with an anode device (63) and a cathode device (64).

10. The charging pile noise reduction device according to any one of claims 9, characterized in that:

the fan shell (4), the noise reduction body (5) and the dustproof device (6) are all arranged in the middle of the filtering and vibrating box (3), and the axes of the fan shell and the filtering and vibrating box (3) coincide with each other.

Background

With the rapid development of new energy automobile technology and the increasing social demand, new energy automobiles gradually move into thousands of households. Meanwhile, the new energy electric automobile charging pile is increasingly demanded. When the charging pile works, a large amount of heat can be generated in the area of the power module, and the heat is accumulated to damage electronic components in the pile body. At present, the pile body is mainly cooled by air cooling. However, as the fan ages and external dust enters the fan to damage the fan, the heat dissipation fan generates large noise during operation, which seriously affects the satisfaction of customers and the life of surrounding residents. Therefore, it is very necessary and significant to reduce the noise of charging pile.

At present, the noise reduction mode adopted under the condition has the following defects and shortcomings:

(1) the current charging pile noise reduction mode is to wrap noise reduction materials around a cooling fan, and the mode cannot effectively reduce the noise of a pile body transmitted by a system fan;

(2) the current heat dissipation fan is mainly arranged at the boundary of the charging pile shell, and a dustproof net and dustproof cotton are arranged at the position opposite to the fan to prevent dust from entering the fan and the interior of the pile body; when dust blocks the dust screen and the dust cotton, the dust cannot be effectively blocked from entering the fan, and the heat in the pile body can be blocked from being discharged, so that the heat dissipation of the pile body is seriously influenced;

(3) current cooling fan mainly passes through the fix with screw in pile body frame, and cooling fan will constantly shake at the during operation, and torsion is not enough if during screw-up, will lead to fastening screw to relax gradually, and the vibrations noise crescent that the fan during operation produced.

Disclosure of Invention

The invention aims to solve the problems of poor noise reduction effect, influence on pile body heat dissipation and instable installation mode of the existing noise reduction device, and provides the charging pile noise reduction device which reflects, consumes and absorbs noise, greatly reduces and reduces pneumatic noise transmitted out of a pile body, combines the noise reduction and heat dissipation functions in the pile body, effectively filters external dust and buffers mechanical noise generated by vibration of a heat dissipation fan during working.

In order to achieve the purpose, the invention adopts the following technical scheme:

a charging pile noise reduction device comprises a charging pile body and a heat dissipation fan which are connected, wherein a filtering box is connected to the outer side of the heat dissipation fan, a fan shell matched with the heat dissipation fan is arranged in the filtering box, the heat dissipation fan is nested on one side of the fan shell, the other side of the fan shell is connected with a noise reduction body, a cone noise reduction device, a cone fixing block and a noise reduction hole area are arranged in the noise reduction body, the cone noise reduction device is connected with the inner wall of the noise reduction body through the cone fixing block, and the noise reduction hole area formed by porous medium materials is arranged between every two adjacent cone fixing blocks and used for reflecting, consuming and absorbing noise;

each surface of the cone noise reduction device is provided with a noise reflection sheet and a noise reduction hole, and the bottom of the cone noise reduction device is provided with a cone lower cover which is fixedly connected with the cone fixing block through the cone lower cover.

Further, the inner wall center of the cone noise reduction device is connected with a circular cap base, a supporting device matched with each other is arranged in an inner cavity of the cone noise reduction device, the supporting device comprises a movable frame on the upper portion, a circular cap connecting piece and a supporting rod on the lower portion, the upper end of the movable frame is connected to the top end of the cone noise reduction device, the lower end of the cone noise reduction device is provided with a spherical connecting block, the spherical connecting block is slidably connected into a circular hole in the upper end of the supporting rod, the lower end of the supporting rod is fixedly connected to the middle of the lower cover of the cone, one end of the three circular cap connecting pieces is connected onto the movable frame through a sliding block, the other end of the three circular cap connecting pieces is correspondingly connected with the circular cap base, and the included angle between the two adjacent circular cap connecting pieces is 120 degrees so as to support the surface of the cone.

Further, circular cap connecting piece includes the hemisphere cap, the arc connecting piece, the connecting rod, a fixed section of thick bamboo and shape memory spring, the bottom of hemisphere cap is equipped with the arc wall, the arc connecting piece passes through fixing bolt to be connected in the arc wall, the upper end rethread undersize bolt of connecting rod links to each other with the middle part of arc connecting piece, the upper portion of a fixed section of thick bamboo is equipped with the upper end cover, the lower part is equipped with the lower extreme, a shape memory spring is connected between upper end cover and the lower extreme cover, the lower extreme of connecting rod links to each other with the upper end cover of a fixed section of thick bamboo, the lower extreme of a fixed section of thick bamboo links to each other with the sliding block is fixed, in order to be used for through the deformation that temperature perception change drove centrum support.

Further, the shape memory spring is a temperature sensitive shape memory spring.

Further, the cone fixed block is equidistantly distributed on the inner wall of the noise reduction body, the axis of the cone fixed block is parallel to the axis of the noise reduction body, one side of the cone fixed block is an arc-shaped surface, and the radian of the arc-shaped surface is identical to that of the inner wall of the noise reduction body, so that the fixed block is tightly attached to the inner wall of the noise reduction body.

Furthermore, a set of fixing clamping grooves matched with the cone fixing blocks are formed in the inner wall of the noise reduction body, each cone fixing block is fixedly connected with the corresponding fixing clamping groove, a set of regular tetrahedral cone noise reduction devices are connected to each cone fixing block, and the cone noise reduction devices are also arranged along the axis of each cone fixing block to be used for completing the connection of the cone noise reduction devices and the cone fixing blocks and the connection of the cone fixing blocks and the noise reduction body.

Further, the noise reflection sheet is arranged in the middle of each surface of the cone noise reduction device, and the noise reduction holes are distributed around the noise reflection sheet.

Furthermore, the vibration filtering box comprises a vibration filtering gasket made of vibration filtering materials and used for filtering vibration generated when the fan works and reducing vibration noise generated when the heat radiating fan works.

Furthermore, the end face of the noise reduction body is connected with a dustproof device, the dustproof device comprises an electrostatic dustproof net, one side of the electrostatic dustproof net is matched with the end face of the noise reduction body, a pair of arc-shaped plates are connected in the dustproof device, the arc-shaped plates are oppositely arranged, and an anode device and a cathode device are respectively fixed on the arc-shaped plates and used for generating high-voltage static electricity on the dustproof net to enable dust to be gathered and cleaned.

Further, fan casing, the body of making an uproar and dust keeper all set up in the middle part of straining the shake case, and its axis coincides each other with the axis of straining the shake case.

Compared with the prior art, the invention has the advantages that:

(1) in order to reduce the pneumatic noise in the pile body, the porous medium noise reduction hole area arranged in the pile body is combined and matched with the cone noise reduction devices, and the cone noise reduction devices are arranged in a staggered manner, so that the noise in the pile can be reflected in multiple directions, and the reflected noise sound waves enter the noise absorption holes, thereby realizing the functions of reflecting, consuming and absorbing the noise, and effectively reducing and reducing the pneumatic noise transmitted out of the pile body;

(2) the included angle between the cone surface and the support can be automatically adjusted by the temperature-sensitive autonomous deformation support in the cone noise reduction device according to the temperatures of different positions in the noise reduction body, so that the blocking influence of the cone noise reduction device on hot air is reduced, the noise reduction and heat dissipation functions in the pile body are taken into consideration, and the automation degree is high;

(3) the vibration filtering structure is arranged outside the heat dissipation fan, so that mechanical noise generated by vibration of the heat dissipation fan during working can be effectively buffered;

(4) the multilayer electrostatic dust screen is arranged at the air outlet, so that external dust can be effectively reduced from entering the pile body, and the damage influence of the dust on the system fan and electronic components is avoided.

Drawings

FIG. 1 is a noise reduction schematic diagram of a charging pile noise reduction apparatus of the present invention;

FIG. 2 is an exploded view of the noise reducing device of the charging post of the present invention;

FIG. 3 is a schematic structural diagram of a noise reduction body according to the present invention;

FIG. 4 is a perspective view of a cone noise reducer of the present invention;

FIG. 5 is a front view of a cone noise reducer of the present invention;

FIG. 6 is an exploded view of the internal structure of the cone noise reducer of the present invention;

FIG. 7 is a front view of the support device of the present invention;

FIG. 8 is a top view of the support device of the present invention;

FIG. 9 is an exploded view of the structure of the circular cap connector of the present invention;

FIG. 10 is a structural view of the dust-proof apparatus of the present invention;

FIG. 11 is a perspective view of the seismic filter of the present invention;

fig. 12 is a front view of the charging pile body of the present invention;

fig. 13 is a rear view of the charging pile of the present invention;

fig. 14 is a schematic cross-sectional view of the charging pile of the present invention;

FIG. 15 is a schematic view of a porous media material according to the prior art;

fig. 16 is a schematic diagram of sound absorption and noise reduction of a porous medium material in the prior art.

Detailed Description

Example 1

In order to make the present invention more clear, the noise reduction device for charging post of the present invention is further described below with reference to the attached drawings, and the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

Referring to fig. 1, fig. 12~14, a fill electric pile and fall device of making an uproar, including the electric pile 1 body and the cooling fan 2 that link to each other of filling, its characterized in that:

referring to fig. 1 and 11, the outer side of the heat dissipation fan 2 is connected with a vibration filtering box 3, and the vibration filtering box 3 comprises a vibration filtering gasket made of a vibration filtering material and used for filtering vibration generated when the fan works and reducing vibration noise generated when the heat dissipation fan works;

referring to fig. 1 and 2, a fan shell 4 matched with a heat dissipation fan 2 is arranged in a filtering and vibrating box 3, the heat dissipation fan 2 is nested on a hub 4a of the fan shell 4, and the other side of the fan shell 4 is connected with a noise reduction body 5;

referring to fig. 2 and 3, the noise reduction body 5 includes cone noise reduction devices 51, cone fixed blocks 52 and a noise reduction hole area 53, the cone fixed blocks 52 are distributed on the inner wall of the noise reduction body 5 at equal intervals, the axes of the cone fixed blocks 52 are parallel to the axis of the noise reduction body 5, a set of fixed slots 54 matched with the cone fixed blocks 52 are arranged on the inner wall of the noise reduction body 5, each cone fixed block 52 is fastened and connected with the corresponding fixed slot 54, the noise reduction hole area 53 made of porous medium material is arranged between two adjacent cone fixed blocks 52, a set of regular tetrahedron cone noise reduction devices 51 are connected on each cone fixed block 52, and the cone noise reduction devices 51 are also arranged along the axes of the cone fixed blocks 52 for reflecting, consuming and absorbing noise;

referring to fig. 3, 4 and 5, each surface of the cone noise reducer 51 is provided with a noise reflection sheet 511 and noise reduction holes 512, the noise reflection sheet 511 is arranged at the center of each surface of the cone noise reducer 51, the noise reduction holes 512 are distributed around the noise reflection sheet 511, the bottom of the cone noise reducer 51 is provided with a cone lower cover 513, and the cone noise reducer is connected with the cone fixed block fixing 52 through the cone lower cover 513;

referring to fig. 6, 7 and 8, the centers of the inner walls of the cone noise reducing devices 51 are connected with circular cap bases 7, supporting devices 8 which are matched with each other are arranged in the inner cavities of the cone noise reducing devices 51, each supporting device 8 comprises an upper moving frame 81, a circular cap connecting piece 82 and a lower supporting rod 83, the upper ends of the moving frames 81 are connected to the top ends of the cone noise reducing devices 51, the lower ends of the moving frames 81 are provided with spherical connecting blocks 81a, the spherical connecting blocks 81a are connected in circular holes in the upper ends of the supporting rods 83 in a sliding manner, the lower ends of the supporting rods 83 are fixedly connected to the middle of the lower cone cover 513, one ends of three circular cap connecting pieces 82 are connected to the moving frames 81 through sliding blocks 9, the other ends of the three circular cap connecting pieces are correspondingly connected with the circular cap bases 7, and the included angle between two adjacent circular cap connecting pieces 82 is 120 degrees so as to support the surfaces of cones;

referring to fig. 7 and 9, the circular cap connector 82 includes a half-ball cap 821, an arc connector 822, a connecting rod 823, a fixed cylinder 824 and a shape memory spring 825, the bottom of the half-ball cap 821 is provided with an arc slot 821a, the arc connector 822 is connected to the arc slot 821a through a fixing bolt 10, the upper end of the connecting rod 823 is connected to the middle of the arc connector 822 through a small bolt 11, the upper portion of the fixed cylinder 824 is provided with an upper end cover 824a, the lower portion of the fixed cylinder 824 is provided with a lower end cover 824b, the shape memory spring 825 is connected between the upper end cover 824a and the lower end cover 824b, the shape memory spring 825 is a temperature sensitive shape memory spring, the lower end of the connecting rod 823 is connected to the upper end cover 824a of the fixed cylinder 824, and the lower end cover 824b of the fixed cylinder 824 is fixedly connected to a sliding block 9, so as to drive the deformation of the vertebral body support through temperature sensing change;

referring to fig. 2 and 10, the end face of the noise reduction body 5 is connected with a dust-proof device 6, the dust-proof device 6 comprises an electrostatic dust screen 61 with one side matched with the end face of the noise reduction body 5, the dust-proof device 6 is connected with a pair of arc-shaped plates 62, the arc-shaped plates 62 are oppositely arranged and are respectively fixed with an anode device 63 and a cathode device 64, so that high-voltage static electricity is generated on the dust screen to collect and clean dust;

in this embodiment, the fan housing 4, the noise reduction body 5 and the dustproof device 6 are all arranged in the middle of the filtering and vibrating box 3, and the axes of the fan housing and the filtering and vibrating box 3 coincide with each other.

In this embodiment, one side of the cone fixing block 52 is an arc-shaped surface, and the radian of the arc is the same as that of the inner wall of the noise reduction body 5, so that the fixing block is tightly attached to the inner wall of the noise reduction body.

In this embodiment, the extension line of the connection line from the center point of the cone lower cover 513 to the top end of the cone noise reducer 51 is converged on the central axis of the noise reduction body 5.

Referring to fig. 15 and 16, in order to effectively consume and absorb noise inside the pile body, the invention utilizes the following technical principles:

(1) principle of sound wave reflection

When sound waves are incident from one medium to another medium with different acoustic characteristics, reflection occurs at the interface position of the two media, so that a part of energy of the sound waves is returned to the first medium. After multiple reflection, most energy of the sound wave is converted into other forms, the energy of the sound wave is gradually dissipated in a multiple reflection path, and the sound intensity is gradually weakened;

(2) passive noise reduction principle based on porous medium material

The porous medium material is a light structure, can effectively absorb impact energy, reduce noise, increase heat dissipation and insulate heat, and is one of effective materials in the current sound absorption and noise reduction treatment. The passive noise reduction mode adopts sound insulation and absorption technology, and controls noise through an acoustic package. The porous material is most applied in the acoustic package, and the noise in a transmission path can be effectively absorbed by reasonably applying the porous material; the mechanism of noise absorption by porous media is: the porous material has a large number of pores and gaps inside, the pores and gaps are communicated with each other, and the surface thereof is in contact with the outside, as shown in fig. 15. When sound waves enter the porous material, there are two ways for the sound waves to decay: the first is because the air in the sound wave excitation aperture takes place the vibration, and near the aperture wall and the air particle velocity at hole center are inconsistent, can produce the friction between the air particle and between air particle and the pore wall, because the effect of friction and viscous force makes some sound energy transform into heat energy to make the sound wave decay. Second, heat exchange between the air in the pores and the walls of the pores also attenuates the acoustic energy. The sound absorption and noise reduction principle of the porous medium material is shown in fig. 16.

In addition, in order to effectively reduce the noise transmitted from the interior of the charging pile body and prevent a large amount of dust from entering the fan and the interior of the pile body, the noise reduction principle of the invention is shown in fig. 1:

(1) a cylindrical noise reduction body 5 is arranged outside the cooling fan 2, the path of a noise transmission pile body is prolonged, and meanwhile, a noise reduction structure and a cone noise reduction device are arranged on the noise transmission path, so that pneumatic noise is consumed and absorbed;

(2) based on the passive noise reduction principle of the porous medium material, the porous medium noise reduction material is fixedly installed in the noise reduction body, so that when noise is transmitted to the position, the noise can be effectively reflected, consumed and absorbed;

(3) based on the reflection principle of sound waves, a cone-type noise reduction unit is arranged inside the pile body. The surface of the cone noise reduction device 51 is provided with a planar sound wave reflection sheet, the main purpose of the design is to reflect the pneumatic noise in the pile body to multiple directions, and the partially reflected noise sound waves enter the noise absorption holes, so that the noise consumption is realized; meanwhile, a certain distance is arranged between the noise reduction units and the noise reduction units are arranged in a staggered manner, so that multiple reflection and absorption of noise are realized, and the noise intensity after multiple reflection and consumption is gradually weakened;

(4) in order to reduce the noise generated by the mechanical vibration of the heat dissipation fan when the heat dissipation fan works, a filtering and vibrating structure is arranged around the fixed position of the heat dissipation fan, so that the noise generated by the mechanical vibration when the heat dissipation fan works is reduced;

(5) based on the autonomous deformability of the temperature-sensitive shape memory material, a temperature-sensitive deformable support is arranged inside the cone noise reduction device. In a region with higher temperature, the support bracket of the cone deforms automatically, so that the angle between the support and the wall surface of the noise reduction device is reduced, and the blocking influence of the noise reduction cone on the discharge of hot air flow is reduced. In a region with relatively low temperature, the cone supporting bracket deforms autonomously, so that the angle between the bracket and the wall surface of the noise reduction device is increased, and internal noise is mainly reflected and consumed;

(6) based on the electrostatic dust removal principle, a plurality of layers of electrostatic dust screens are arranged at the air outlet, so that dust in the external environment is prevented from entering the fan and the pile body.

In the present invention, the charging posts are arranged as shown in fig. 12-14. When the charging pile works, the power supply module is a main contribution device of heat in the pile body. By utilizing the hot air flow rising principle, the power module is arranged on the upper portion of the charging pile, the straight-face heat dissipation fan is convenient for taking heat generated by the power module during working out of the pile body, meanwhile, the electronic device is arranged at the bottom of the charging pile, and the heat insulation structure is arranged in the region of the power module, so that the heat generated by the power module is prevented from damaging the electronic device. In addition, in order to prevent the noise generated by the cooling fan from directly transmitting out of the pile body, the cone noise reduction device is arranged outside the cooling fan, so that the noise transmission path is prolonged, the noise generated by the system fan is consumed and absorbed in the noise reduction area, and the noise intensity of the transmitted pile body is greatly reduced.

In the invention, the electrostatic dust screen 61 is mainly composed of multiple layers of filter screens and mainly has the function of blocking external dust from entering the pile body, the anode device 63 and the cathode device 64 mainly have the function of generating a high-voltage electrostatic field on the surface of the electrostatic dust screen 61, when dust-containing air passes through, the dust is combined with anions and is negatively charged, then the screen anode moves and gathers, and when the dust gathers to a threshold value, the dust is removed to the outside of the pile body.

In the present invention, the cone noise reducer 51 has a regular tetrahedron structure, which has the main advantages of receiving and consuming noise in multiple directions in space, and reflecting the noise to the external space. The cone noise reduction device 51 is internally provided with a support which changes along with the temperature, and the surface of the cone is provided with a flexible deformable material, so that the cone noise reduction device has the advantages of being capable of sensing the temperature in the area where the heat dissipation fan is transmitted and automatically deforming along with the temperature, and avoiding the blocking effect of the cone noise reduction unit on the discharge of hot air as far as possible. In addition, the cone noise reduction device is composed of an even number and is arranged in a staggered mode, and the purpose of the arrangement is to perform multiple consumption and absorption on noise. The distance between the cone noise reducers 51 is gradually increased from the heat radiation fan to the outside, and the arrangement is intended to perform the emphasis reflection and the consumption near the position of the noise source.

In the present invention, the moving frame 81 is slidably connected in the circular hole at the upper end of the supporting rod 83 through the spherical connecting block 81a, thereby realizing the 360 ° rotation function of the upper moving frame. Three circular cap connectors 82 with 120 ° included angles are provided on the moving frame 81, and the surface of the structure is provided with synapse structures fixedly connected with the pyramidal housing. The supporting device mainly has the following functions: (1) providing fixed support for the surface of the cone shell; (2) the included angle between the three circular cap connecting pieces is automatically adjusted according to the external temperature, the moving frame on the upper portion is pushed to deflect, the deformation of the surface of the noise reduction cone is further achieved, the process senses the external temperature to automatically deform, the blocking influence on the discharge of hot air flow is reduced, and the automation degree is high.

In the present invention, the main purpose of the round cap connecting member 82 having the hemispherical cap 821 at the end thereof is: the shape is special and the surface is smooth, thus effectively reducing the influence on air flow retardation; in addition, the stress in all directions can be uniform, and the structure can be damaged due to uneven external force bearing. The primary function of the temperature sensitive shape memory spring 825 is to expand its shape outward when the ambient temperature is high above a threshold and to contract its shape inward when the ambient temperature is low and below the threshold. The shrinkage of the temperature-sensitive shape memory spring along with the temperature change drives the deformation of the cone support, so that the deformation of the surface of the cone is further promoted, and the final aim is to reduce the blocking influence of the cone noise reduction unit on the discharge of internal hot air flow.

In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.