1. An on-vehicle air purifier, comprising:

a bottom case (2) configured in a groove-shaped structure;

the fan (21) is arranged in the bottom shell (2);

the shielding plate (4) is connected with the opening side of the bottom shell (2), and a first through hole suitable for air inlet of the fan (21) is formed in the shielding plate (4);

the upper cover plate (3) is detachably connected with the shielding plate (4);

a magnet (5) disposed on the upper cover plate (3);

the Hall device (71) is arranged in the bottom shell (2) and corresponds to the position of the magnet (5);

the Hall device (71) is suitable for conducting when the upper cover plate (3) is connected with the shielding plate (4) and suitable for disconnecting when the upper cover plate (3) is far away from the shielding plate (4).

2. The vehicle air purifier of claim 1, further comprising:

the metal sheet (6) is connected with the shielding plate (4) and corresponds to the position of the magnet (5); the metal sheet (6) is suitable for connecting the upper cover plate (3) and the shielding plate (4) when being attached to the magnet (5).

3. The vehicle air purifier of claim 2, wherein the upper cover plate (3) is provided with a magnet fixing groove (31), and the magnet fixing groove (31) is adapted to fix the magnet (5).

4. The vehicle air cleaner according to claim 3, wherein the magnet fixing groove (31) is formed by extending a lower surface of the upper cover plate (3) in a direction away from the upper cover plate (3); the upper surface of shielding plate (4) corresponds magnet fixed slot (31) are formed with the groove of stepping down (41), the groove of stepping down (41) are suitable for upper cover plate (3) with do when shielding plate (4) are connected magnet fixed slot (31) form the space of stepping down.

5. The vehicle-mounted air purifier according to claim 4, wherein the shielding plate (4) is further formed with a metal sheet mounting portion (42), the metal sheet mounting portion (42) is formed on a lower surface of the shielding plate (4) and is respectively disposed on opposite sides of the shielding plate (4) with the relief groove (41); the sheet metal mounting part (42) is suitable for clamping the sheet metal (6).

6. The vehicle air cleaner of claim 5, further comprising:

the control board (7), the control board (7) with hall device (71) electricity is connected.

7. The vehicular air cleaner according to claim 6, wherein the Hall device (71) is soldered on the control board (7).

8. The vehicle air purifier according to claim 5, wherein the Hall device (71) and the magnet (5) are respectively located on opposite sides of the metal sheet (6) in a state where the upper cover plate (3) and the shielding plate (4) are connected;

an abdicating notch (61) is formed in the metal sheet (6), and the abdicating notch (61) is suitable for being formed in the corresponding area of the Hall device (71) and the magnet (5).

9. The vehicular air cleaner of any one of claims 1 to 8, further comprising: the suspension cover (1) is connected with the upper cover plate (3) and is suitable for forming an air inlet with the upper cover plate (3);

the suspension cover (1) is suitable for shielding the first through hole formed on the shielding plate (4).

10. The vehicle air purifier according to any one of claims 1-8, wherein a distance between the Hall device (71) and the magnet (5) is A in a state where the upper cover plate (3) is connected to the shielding plate (4), wherein A < 7 mm.

Background

With the rapid development of social economy, the popularization rate of automobiles is increasing, people use automobiles more and more frequently, and the time of staying in the automobiles is also increasing gradually, so that the quality of air in the automobiles is gradually concerned by consumers, main gas pollutants in the air in the automobiles comprise suspended particles, formaldehyde, benzene, bacteria and the like, and if the air is left in the environment for a long time, the health of the consumers is seriously threatened.

The vehicle-mounted air purifier is a novel product designed for a small car, and a micro switch is usually arranged in the vehicle-mounted air purifier for preventing the danger of electric shock or scratch when a user dismantles a shell because a fan rotating at a high speed is arranged in the vehicle-mounted air purifier. The common microswitch in the market at present is that a movable button is arranged at the position of a cover, and when the cover is opened, the microswitch is triggered, so that a product automatically stops running; this type micro-gap switch often comprises the working of plastics, and when the number of times of uncapping was more, micro-gap switch was damaged easily, leads to the unable operation of product, and the reliability is lower.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the button type microswitch in the prior art is easy to damage, so that the vehicle-mounted air purifier with the microswitch, which is difficult to damage and high in reliability, is provided.

In order to solve the above technical problem, the present invention provides a vehicle air purifier, comprising:

a bottom case configured in a groove structure;

the fan is arranged in the bottom shell;

the shielding plate is connected with the opening side of the bottom shell, and a first through hole suitable for air inlet of the fan is formed in the shielding plate;

the upper cover plate is detachably connected with the shielding plate;

the magnet is arranged on the upper cover plate;

the Hall device is arranged in the bottom shell and corresponds to the position of the magnet;

the Hall device is suitable for being conducted when the upper cover plate is connected with the shielding plate, and is suitable for being disconnected when the upper cover plate is far away from the shielding plate.

Optionally, the vehicle-mounted air purifier further includes:

the metal sheet is connected with the shielding plate and corresponds to the position of the magnet; when the metal sheet is attached to the magnet, the upper cover plate is connected with the shielding plate.

Optionally, a magnet fixing groove is formed in the upper cover plate, and the magnet fixing groove is suitable for fixing the magnet.

Optionally, the magnet fixing groove is formed by extending the lower surface of the upper cover plate in a direction away from the upper cover plate; the upper surface of shielding plate corresponds the magnet fixed slot is formed with the groove of stepping down, the groove of stepping down is suitable for the upper cover plate with do when the shielding plate is connected the magnet fixed slot forms the space of stepping down.

Optionally, a metal sheet mounting part is further formed on the shielding plate, and the metal sheet mounting part is formed on the lower surface of the shielding plate and is respectively arranged on two opposite sides of the shielding plate together with the abdicating groove; the sheet metal installation part is suitable for clamping the sheet metal.

Optionally, the vehicle-mounted air purifier further includes:

and the control panel is electrically connected with the Hall device.

Optionally, the hall device is welded on the control board.

Optionally, in a state where the upper cover plate is connected to the shielding plate, the hall device and the magnet are respectively located on two opposite sides of the metal sheet;

the metal sheet is provided with a abdicating notch, and the abdicating notch is suitable for abdicating the Hall device and the corresponding area of the magnet.

Optionally, the vehicle-mounted air purifier further includes: the suspension cover is connected with the upper cover plate and is suitable for forming an air inlet with the upper cover plate;

the suspension cover is suitable for shielding the first through hole formed on the shielding plate.

Optionally, in a state where the upper cover plate is connected to the shielding plate, a distance between the hall device and the magnet is a, where a is less than 7 mm.

The technical scheme of the invention has the following advantages:

1. according to the vehicle-mounted air purifier, the position relation between the Hall device and the magnet is utilized, and the magnet is close to the Hall device, so that the Hall device forms a path, and the circuit conduction on the control board is controlled; when the magnet is far away from the Hall device, the Hall device is disconnected, and then a circuit on the control panel is disconnected, so that the danger of electric shock or scratch when a user detaches the shell is prevented; and the Hall device replaces the traditional button type microswitch, so that the use is simpler and more convenient, and the damage is not easy to damage.

2. According to the vehicle-mounted air purifier, the metal sheet is arranged, so that the upper cover plate can be fixed by attracting the magnet and the metal sheet when the upper cover plate and the shielding plate are assembled, and the attraction force of the magnet is utilized; in addition, by reasonably arranging the positions of the magnet, the metal sheet and the Hall device, the air purifier can be used as a switch to control the operation of the vehicle-mounted air purifier, and the upper cover plate can be buckled with the baffle plate, so that the suction mode is easy to operate and is not easy to damage; meanwhile, when the upper cover plate is separated from the shielding plate, the Hall device can be synchronously triggered to be disconnected, so that the disconnection of a circuit on the control panel is ensured, and the danger of electric shock or scratch when a user dismantles the shell is prevented.

3. According to the vehicle-mounted air purifier, the positions of the magnet, the metal sheet and the Hall device are reasonably arranged, the magnet is arranged on the upper cover plate, and the metal sheet and the Hall device are arranged on one side of the bottom shell, so that when the upper cover plate is close to the shielding plate, the fixing is convenient and rapid, and the conduction of the Hall device is realized; when the upper cover plate is far away from the baffle plate, the disassembly is convenient, and the disconnection of the Hall device is ensured. Meanwhile, a fixing structure and a microswitch structure are not required to be arranged between the upper cover plate and the shielding plate, so that the space is greatly saved, and a large space is reserved for minimizing the size of the whole machine.

4. According to the vehicle-mounted air purifier provided by the invention, the distance between the Hall device and the magnet is controlled, so that the Hall device can be ensured to realize the optimization of the distance from the magnet, and the magnetic field intensity is also optimal, thereby ensuring the wind sensitivity of the Hall device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an overall schematic view of a vehicular air purifier of the present invention;

FIG. 2 is a schematic view of the present invention with the upper cover plate and the floating cover removed;

FIG. 3 is a schematic view of the upper deck of the present invention;

FIG. 4 is a schematic front view of a shutter according to the present invention;

FIG. 5 is a schematic reverse side view of a shield according to the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 5;

FIG. 7 is a sectional view of the upper cover plate and the shielding plate in an assembled state according to the present invention;

FIG. 8 is an enlarged view of FIG. 7 at B;

FIG. 9 is a schematic diagram of the positions of the control board and the Hall device;

fig. 10 is a schematic view of a metal sheet.

Description of reference numerals:

1-floating cover, 2-bottom shell, 21-fan, 22-filter screen, 3-upper cover plate, 31-magnet fixing groove, 32-clamping skirt edge, 4-shielding plate, 41-abdicating groove, 42-metal sheet mounting part, 43-clamping groove, 5-magnet, 6-metal sheet, 61-abdicating notch, 7-control plate, 71-Hall device.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example one

As shown in fig. 1 to 10, the present embodiment provides an in-vehicle air cleaner, including:

a bottom case 2 constructed in a groove structure;

the fan 21 is arranged in the bottom shell 2;

the shielding plate 4 is connected with the opening side of the bottom shell 2, and a first through hole suitable for air inlet of the fan 21 is formed in the shielding plate 4;

the upper cover plate 3 is detachably connected with the shielding plate 4;

a magnet 5 disposed on the upper cover plate 3;

the Hall device 71 is arranged in the bottom shell 2 and corresponds to the position of the magnet 5;

the hall device 71 is adapted to be turned on when the upper cover plate 3 is connected to the shielding plate 4, and adapted to be turned off when the upper cover plate 3 is away from the shielding plate 4.

Preferably, the hall device 71 is a magnetic sensor based on the hall effect. The Hall effect means: when the current direction of a static current-carrying conductor placed in a magnetic field is different from the direction of the magnetic field, an electromotive force difference is generated between two surfaces on the current-carrying conductor, which are parallel to the current and magnetic field directions, and the phenomenon is called Hall effect. Hall devices can be used in a variety of magnetic field related applications. The Hall device has the advantages of firm structure, small volume, light weight, long service life, convenient installation, low power consumption, high frequency (up to 1MHZ), vibration resistance, no fear of pollution or corrosion of dust, oil stain, water vapor, salt mist and the like.

The magnet is communicated with the Hall device through the magnetic field of the magnet, so that the Hall device forms a passage, and a circuit on the control panel is controlled.

According to the vehicle-mounted air purifier provided by the embodiment, the magnet 5 is close to the hall device 71 by utilizing the position relation between the hall device 71 and the magnet 5, so that the hall device forms a path, and the circuit on the control board is controlled to be conducted; when the magnet 5 is far away from the Hall device 71, the Hall device is disconnected, so that a circuit on the control board is disconnected, and the danger of electric shock or scratch when a user dismantles the shell is prevented; and the Hall device 71 replaces the traditional button type microswitch, so that the use is simpler and more convenient, and the damage is not easy to damage.

Specifically, the in-vehicle air purifier further includes:

the metal sheet 6 is connected with the shielding plate 4 and corresponds to the position of the magnet 5; the metal sheet 6 is adapted to connect the upper cover plate 3 and the shielding plate 4 when attached to the magnet 5.

According to the vehicle-mounted air purifier provided by the embodiment, the metal sheet 6 is arranged, so that the upper cover plate 3 can be fixed by attracting the magnet and the metal sheet 6 with each other and utilizing the attraction of the magnet when the upper cover plate 3 and the shielding plate 4 are assembled; in addition, by reasonably arranging the positions of the magnet 5, the metal sheet 6 and the Hall device 71, the operation of the vehicle-mounted air purifier can be controlled as a switch, the upper cover plate 3 can be buckled with the shielding plate 4, and the attraction manner is easy to operate and is not easy to damage; meanwhile, when the upper cover plate 3 is separated from the shielding plate 4, the Hall device 71 can be synchronously triggered to be disconnected, so that the circuit on the control panel is disconnected, and the danger of electric shock or scratch when a user dismantles the shell is prevented.

Preferably, the vehicle-mounted air purifier provided by the embodiment utilizes the hall device 71, so that the structure of an injection molding part of the vehicle-mounted air purifier can be simplified; the upper cover plate 3 and the shielding plate 4 are placed in a correct alignment mode, pressing operation is not needed, the upper cover plate 3 and the shielding plate 4 are enabled to be more convenient to buckle and move, reliability of long-time use is good, and user experience of the whole machine is improved.

Preferably, the magnet 5 and the metal sheet 6 are attracted in the embodiment, and a random vibration test can ensure that the upper cover plate 3 and the shielding plate 4 are completely attracted in 4 hours in the whole process, so that the phenomenon of obvious disconnection is avoided, the upper cover plate 3 does not fall off, and the reliability is high.

According to the vehicle-mounted air purifier provided by the embodiment, the magnet 5 is arranged on the upper cover plate 3 by reasonably arranging the positions of the magnet 5, the metal sheet 6 and the Hall device 71, and the metal sheet 6 and the Hall device 71 are arranged on one side of the bottom shell, so that when the upper cover plate 3 is close to the shielding plate 4, the fixing is convenient and fast, and the conduction of the Hall device 71 is realized; when the upper cover plate 3 is far away from the shielding plate 4, the dismounting is convenient, and the disconnection of the Hall device 71 is ensured. Meanwhile, a fixing structure and a microswitch structure are not required to be arranged between the upper cover plate 3 and the baffle plate 4, so that the space is greatly saved, and a large space is reserved for minimizing the size of the whole machine.

Specifically, the upper cover plate 3 is provided with a magnet fixing groove 31, and the magnet fixing groove 31 is adapted to fix the magnet 5. The magnet fixing grooves 31 are matched with the shape of the magnet 5.

Specifically, the magnet fixing groove 31 is formed by extending the lower surface of the upper cover plate 3 in a direction away from the upper cover plate 3; the upper surface of shielding plate 4 corresponds magnet fixed slot 31 is formed with the groove of stepping down 41, the groove of stepping down 41 is suitable for upper cover plate 3 with for when shielding plate 4 is connected magnet fixed slot 31 forms the space of stepping down.

Specifically, a metal sheet mounting portion 42 is further formed on the shielding plate 4, and the metal sheet mounting portion 42 is formed on the lower surface of the shielding plate 4 and is respectively arranged on two opposite sides of the shielding plate 4 together with the receding groove 41; the sheet metal mounting portion 42 is adapted to clamp the sheet metal 6.

Specifically, the in-vehicle air purifier further includes: and the control board 7 is electrically connected with the Hall device 71, and the control board 7 is electrically connected with the Hall device 71.

When the magnet 5 is close to the Hall device 71, the Hall device forms a path, and the circuit on the control board is conducted; when the magnet 5 is far away from the Hall device 71, the Hall device is disconnected, and then a circuit on the control board is disconnected, so that the danger of electric shock or scratch when a user detaches the shell is prevented.

Specifically, the hall device 71 is soldered to the control board 7.

Specifically, in a state where the upper cover plate 3 is connected to the shielding plate 4, the hall device 71 and the magnet 5 are respectively located on two opposite sides of the metal sheet 6;

an abdicating notch 61 is formed on the metal sheet 6, and the abdicating notch 61 is suitable for abdicating the hall device 71 and the corresponding area of the magnet 5.

Through being formed with the breach of stepping down 61 on sheetmetal 6, make hall device 71 with only separate the injection molding of shielding plate in the middle of magnet 5 to make things convenient for hall device to pass through the breach of stepping down 61 and the magnet response of sheetmetal, guarantee hall device's reliability.

Specifically, the in-vehicle air purifier further includes: the suspension cover 1 is connected with the upper cover plate 3 and is suitable for forming an air inlet with the upper cover plate 3;

the floating cover 1 is adapted to shield the first through hole formed on the shielding plate 4.

Specifically, in a state where the upper cover plate 3 is connected to the shielding plate 4, a distance between the hall device 71 and the magnet 5 is a, where a is less than 7 mm.

The on-vehicle air purifier that this embodiment provided, through control hall device 71 with distance between the magnet 5 can guarantee that hall device can realize the optimization apart from the magnet distance, also makes magnetic field intensity best simultaneously, and then guarantees hall device wind sensitivity.

Preferably, as shown in fig. 7, a clamping groove 43 is formed in the shielding plate 4, and the clamping groove 43 is adapted to be matched with a clamping skirt 32 correspondingly formed on the upper cover plate 3; draw-in groove 43 with sheetmetal 6 sets up respectively the both sides at the circumference edge of shielding plate 4 to utilize draw-in groove 43 and the fixed rear end of joint shirt rim 32, utilize magnet and the fixed front end of sheetmetal, thereby guarantee upper cover plate 3 with shielding plate 4's fixed firm degree.

Preferably, the vehicle-mounted air purifier further comprises a filter screen 22, wherein the filter screen 22 is arranged around the periphery of the fan 21, so that air blown out of the fan 21 is conveniently filtered.

Preferably, the clamping skirt edge inclines at a certain angle, so that the upper cover plate 3 is conveniently opened and installed when the filter screen is replaced.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.