1. The utility model provides a heat accumulation formula electric heater, includes casing (1), its characterized in that, be provided with heat accumulation chamber (2) in casing (1), be provided with the electric heat unit in heat accumulation chamber (2), heat accumulation chamber (2) lateral wall is seted up and is used for the hot-blast heating wind gap of electric heat unit release (12), the electric heat unit is used for doing through the automatically controlled being connected with of wire the power supply unit of electric heat unit power supply, the power supply unit is through automatically controlled outer accuse (13) that is connected with of WIFI signal connection mode, heat accumulation chamber (2) top is provided with the electromagnetic heating unit, the electromagnetic heating unit with heat accumulation chamber (2) junction is provided with and is used for the storage and releases electromagnetic heating unit thermal heat recovery release chamber (14).

2. A regenerative electric heater as claimed in claim 1, characterised in that the electric heating unit includes a heat storage structure and a thermal insulation structure.

3. A regenerative electric heater according to claim 2, characterised in that the regenerative structure comprises electric heating tubes (3) and mafic bricks (4) arranged around the electric heating tubes (3), the electric heating tubes (3) being placed horizontally and inserted into the mafic bricks (4).

4. A regenerative electric heater according to claim 3, characterized in that the electric heating tube (3) comprises a tube housing (5), a heating wire (6) disposed in the tube housing (5), and a filler (7) filled between the tube housing (5) and the heating wire (6), the tube housing (5) is made of stainless steel 840, the heating wire (6) is made of nichrome, and the filler (7) is made of magnesium oxide.

5. A regenerative electric heater according to claim 3 or 4, characterised in that the number of electric heating tubes (3) is 3, 4 or 5.

6. A regenerative electric heater according to claim 2, characterised in that the insulation structure comprises hard aluminium silicate layers (8) and aluminium silicate wool (9), the hard aluminium silicate layers (8) are arranged between the inner side walls of the heat storage chamber (2) and the mafic bricks (4), and the aluminium silicate wool (9) is arranged on the front walls of the mafic bricks (4) for sealing.

7. A regenerative electric heater according to claim 6, characterised in that the mafic bricks (4) comprise brick bodies (15), slots (16), heat dissipating grooves (17) and limit projections (18).

8. A regenerative electric heater as claimed in claim 1, wherein the power supply unit comprises an electric storage module, a WIFI module, a temperature detection module and a PLC control module, the current output terminal of the electric storage module is connected to the electric heating unit, the signal output terminal and the signal input terminal of the WIFI module are electrically connected to the PLC control module, the detection terminal of the temperature detection module is placed in the heat storage chamber (2), and the signal transmission terminal is electrically connected to the PLC control module.

9. A regenerative electric heater as claimed in claim 1, characterised in that the electromagnetic heating unit comprises at least two electric heating means (10) and an electric heating controller (11) associated with the electric heating means (10).

10. A regenerative electric heater according to claim 9, characterised in that the electric heating means (10) is an electric ceramic furnace.

Background

The heat accumulating electric heater completes the conversion and storage of electric energy in 6-8 hr by means of low cost electric energy in the valley period of power network from 23 hr to 7 hr, and releases the stored heat in radiation and convection mode in the peak period of power network to realize 24 hr indoor heating.

The existing heat accumulating type electric heater is single in structure, only carries out hot air release through a common electric heating pipe, the heating efficiency of the mode is low, the hot air release speed is high, in addition, the electric heater is lack of a heat accumulating structure, so that a large amount of heat is released in the power supply process, the heat is insufficient during heating, the heating effect is realized singly, the heat of other indoor heat releasing equipment cannot be recovered and utilized, and a large amount of power resources are wasted.

Disclosure of Invention

The invention aims to solve the problems and discloses a heat accumulating type electric heater which comprises a shell, wherein a heat accumulating cavity is arranged in the shell, an electric heating unit is arranged in the heat accumulating cavity, a heating air port used for releasing hot air by the electric heating unit is formed in the side wall of the heat accumulating cavity, the electric heating unit is electrically connected with a power supply unit used for supplying power to the electric heating unit through a lead, the power supply unit is electrically connected with an external control machine in a WIFI signal connection mode, an electromagnetic heating unit is arranged above the heat accumulating cavity, and a heat recovery releasing cavity used for storing and releasing heat of the electromagnetic heating unit is arranged at the connection position of the electromagnetic heating unit and the heat accumulating cavity.

Preferably, the electric heating unit comprises a heat storage structure and a heat preservation structure.

Preferably, the heat storage structure comprises an electric heating pipe and a mafic block arranged around the electric heating pipe, and the electric heating pipe is placed in a horizontal state and inserted into the mafic block.

Preferably, electric heating pipe includes the pipe shell, sets up heater and packing in the pipe shell are in filler between pipe shell and the heater, the pipe shell adopts the stainless steel 840 material, the heater adopts the nichrome material, the filler is the magnesium oxide material.

Preferably, the number of the electric heating pipes is 3, 4 or 5.

Preferably, the magnesium iron brick comprises a brick body, a slot, a heat dissipation groove and a limiting bump.

Preferably, the heat preservation structure comprises a hard aluminum silicate layer and aluminum silicate cotton, the hard aluminum silicate layer is arranged between the inner side wall of the heat storage cavity and the magnesium iron brick, and the aluminum silicate cotton is arranged on the front wall of the magnesium iron brick for sealing.

Preferably, the power supply unit comprises an electric power storage module, a WIFI module, a temperature detection module and a PLC control module, the current output end of the electric power storage module is connected with the electric heating unit, the signal output end and the signal input end of the WIFI module are electrically connected with the PLC control module, the detection end of the temperature detection module is placed in the heat storage cavity, and the signal transmission end is electrically connected with the PLC control module.

Preferably, the electromagnetic heating unit comprises at least two electric heating devices and an electric heating controller matched with the electric heating devices.

Preferably, the electric heating device is an electric ceramic furnace.

The heat accumulating type electric heater manufactured by the technical scheme of the invention has the following beneficial effects:

1. compared with the traditional heat accumulating type electric heater, the electric heating tube heating wire of the electric heater adopts the nickel-chromium alloy material, compared with the iron-chromium-aluminum alloy material, the nickel-chromium alloy material has higher high-temperature-resistant strength, is not easy to deform in high-temperature use, has good plasticity and non-magnetism after long-term use, has the characteristics of large resistivity, thermal fatigue resistance, oxidation resistance and good high-temperature shape stability, and can ensure the effective utilization of electric energy, the filler is a high-purity high-temperature electric grade magnesia powder material with the content of 98%, the high-purity magnesia has excellent alkali resistance and electric insulation property at high temperature, the thermal expansion coefficient and the thermal conductivity are high, the thermal conductivity is more than 2 times higher than that of alumina, and the loss of electrolyte is only 1/10 of alumina, so that the electric heating wire has higher heat transfer rate, and better heat release efficiency is realized;

2. compared with an electric heater without a heat storage structure, the heat storage structure of the magnesium iron brick is added, so that certain heat can be effectively stored in a low-price electric energy period, the stored heat is released in a high-price electric energy period, and the indoor temperature stability in a heating period is ensured;

3. increased the electric ceramic stove, the form of heating and domestic appliance combination has been realized, in addition, the electric ceramic stove is in the use, the heat of its release still can be retrieved and utilized by heat recovery release chamber, the electric power resource has been saved, the quality of heating is improved, of course, this combination form not only restricts in the electric ceramic stove, traditional domestic appliance is through the mode operation of electric heating all can set up in electric heater body top, be used for replacing the electric ceramic stove, release the chamber through heat recovery and collect this domestic appliance's the heat that gives off, and timely release is gone out and is used for increasing indoor heating effect, thereby prevent the waste of domestic appliance's heating power resource, compare in traditional electric heater, the variety and the associativity that the electric heater used have been increased.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a front cross-sectional overall view of a thermal storage chamber of the present invention;

FIG. 3 is a front cross-sectional view of an aluminum silicate wool of the present invention;

fig. 4 is a structural view of an electric heating tube of the present invention;

FIG. 5 is a front view of the magnesite-iron brick structure of the present invention;

FIG. 6 is a side cross-sectional view of a magnesium iron brick construction of the present invention;

in the figure: 1. a housing; 2. a heat storage chamber; 3. an electric heating tube; 4. a magnesium iron brick; 5. a tube housing; 6. a heater; 7. a filler; 8. a hard aluminum silicate layer; 9. aluminum silicate cotton; 10. an electric heating device; 11. an electrical heating controller; 12. a heating air port; 13. an external control machine; 14. a heat recovery release chamber; 15. a brick body; 16. grooving; 17. a heat sink; 18. and a limiting bump.

Detailed Description

The present invention will be further described with reference to the following examples.

Example 1:

the embodiment provides a heat accumulation formula electric heater, including casing (1), be provided with heat accumulation chamber (2) in casing (1), be provided with the electric heating unit in heat accumulation chamber (2), heat accumulation chamber (2) lateral wall is seted up and is used for the electric heating unit releases hot-blast heating wind gap (12), the electric heating unit is used for doing through the automatically controlled being connected with of wire the power supply unit of electric heating unit power supply, the power supply unit is through automatically controlled outer accuse machine (13) that is connected with of WIFI signal connection mode, heat accumulation chamber (2) top is provided with the electromagnetic heating unit, the electromagnetic heating unit with heat accumulation chamber (2) junction is provided with and is used for the storage and releases electromagnetic heating unit thermal heat recovery release chamber (14).

In the present embodiment, specifically, the electric heating unit includes a heat storage structure and a heat preservation structure. The heat storage structure further comprises an electric heating pipe (3) and a magnesium iron brick (4) arranged around the electric heating pipe (3), and the electric heating pipe (3) is placed in a horizontal state and inserted into the magnesium iron brick (4). Insulation construction includes environmental protection level's stereoplasm aluminium silicate layer (8) and environmental protection level's aluminium silicate cotton (9), stereoplasm aluminium silicate layer (8) set up in between heat accumulation chamber (2) inside wall and magnesium iron brick (4), aluminium silicate cotton (9) set up and are used for sealedly in magnesium iron brick (4) antetheca. The magnesium iron brick (4) comprises a brick body (15), a slot (16), a heat dissipation groove (17) and a limiting bump (18).

Further specifically, electric heating pipe (3) are in including tube shell (5), setting heating wire (6) in tube shell (5) and packing filler (7) between tube shell (5) and heating wire (6), tube shell (5) adopt stainless steel 840 material, heating wire (6) adopt the nichrome material, filler (7) are 98% material of electrician's level magnesium oxide powder.

In this embodiment, specifically, the power supply unit includes power storage module, WIFI module, temperature detection module and PLC control module, power storage module's current output end and electric heat unit are connected, WIFI module's signal output part and signal input part with the automatically controlled connection of PLC control module, temperature detection module's sense terminal is placed in heat accumulation chamber (2), signal transmission end and the automatically controlled connection of PLC control module.

In the present embodiment, in particular, the electromagnetic heating unit comprises at least two electric heating devices (10) and an electric heating controller (11) matched with the electric heating devices (10).

Further specifically, the electric heating device (10) is an electric ceramic furnace.

According to the attached figure 1, during the period of low-price electric energy, the power supply unit supplies power to the electric heating unit, so that the magnesium iron brick stores electric energy, the electric heating pipe 3 is heated, part of heat is conveyed to the indoor through the heating air opening 13, the rest heat is conveyed to the magnesium iron brick 4 to be stored, during the period of high-price electric energy, under the indoor WIFI network connection, a start-stop signal is conveyed to the PLC controller through the external controller 13, then the PLC controller receives the signal and controls the magnesium iron brick to supply power, the internally stored electric energy is used for heating the electric heating pipe 3, the process is accompanied with the release of the heat in the magnesium iron brick 4, and then the heat is conveyed to the indoor through the heating air opening 12, so that the heating process during the period of high-price electric energy is realized, therefore, the electric heating unit realizes the energy storage and heat storage during the period of low-price electric energy through the power supply unit, and realizes the heat release and heating process during the period of high-price electric energy, and the power supply unit can monitor the temperature in the heat accumulation cavity, and transmit for external control machine 13 through WIFI signal transmission' S mode, and external control machine 13 adopts the temperature controller that the model is AIRCON-S1, and it is equipped with the WIFI module, can realize remote control.

In embodiment 1, the WIFI signal transmission modes may include home WIFI signal transmission, factory (or company) WIFI signal transmission, and a mode in which the WIFI signal transmission mode is replaced by 4G network signal transmission, and are respectively denoted as application embodiment 1, application embodiment 2, and application embodiment 3, and the specific modes are as follows:

application example 1: the part of this embodiment is domestic WIFI signal transmission, and electric heater overall structure is the same with embodiment 1 structure, but this embodiment is applicable to and places this electric heater in the family indoor, and the signal transmission mode is through domestic WIFI router, and this process is automatically controlled respectively in outer control machine 13 and the power supply unit and is connected with WIFI signal receiver and generator, carries out unified control to placing each electric heater in indoor through outer control machine 13, and concrete mode is the same with embodiment 1.

Application example 2: this embodiment part is factory (or company uses) WIFI signal transmission, electric heater overall structure is the same with embodiment 1 structure, but this embodiment is applicable to and places this electric heater in mill or company, because the area of mill or company is general great, consequently, need higher heating quality, adopt the factory or company's own WIFI network this moment, realize the unified management of outer accuse machine 13 to the electric heater, if the electric heater is more in quantity, can be with outer accuse machine 13 replacement for unified management platform, this platform is inside to include the WIFI module and be equipped with the PLC controller, generate control signal through the PLC controller, and connect the control that realizes the electric heater in the WIFI network of company through the WIFI module.

Application example 3: this embodiment part is for replacing WIFI signal transmission mode with 4G network transmission signal, electric heater overall structure is the same with embodiment 1 structure, but this embodiment is applicable to the skew region that does not have WIFI signal transmission device, this region is 4G network signal transmission's mode, for comparatively convenient understanding, this transmission mode is the same with the signal transmission mode between on-vehicle end and the vehicle management platform among the prior art, namely under the connection of current 4G big network, realize the 4G signal connection of electric heater and external control machine 13, but the WIFI module replacement of the inside power supply unit of electric heater is 4G network chip this moment, external control machine 13 is the same, external control machine 13 also can be replaced by external control platform this moment, generate control signal through the PLC controller, realize the signal transmission control between the electric heater through 4G chip afterwards.

According to the attached drawings 2-3 in the specification, the electric ceramic furnace can be operated, and in the using process of the electric ceramic furnace, partial heat can be released like an indoor environment, the partial heat can enter the heat recovery release cavity 14 and can be conveyed to the indoor environment along with the output of the warm air in the heat storage cavity 2, the heat utilization process of the electric ceramic furnace is realized, the hard aluminum silicate on the inner side of the heat storage cavity 2 has the advantages of high temperature resistance, and the maximum using temperature can reach 1300 ℃; the thermal conductivity is low, the heat-insulating property is good, and when the aluminum silicate product is used under the same condition, the thermal conductivity is lower than that of other heat-insulating materials by more than 30 percent; the electric insulation property is good, and the dielectric constant is very high; the aluminum silicate foam 9 has the same effect, and can play a good role in heat preservation by being sealed;

the above process is compared with the prior art to form comparative example 1 in the following specific manner:

comparative example 1: in the prior art, for example, in the utility model with the publication number CN209130976U, a heat accumulating type electric heater is disclosed, which relates to the technical field of electric heating devices, and comprises a body, and a panel, an air outlet grid, a first side plate, a second side plate and a top plate which are positioned outside the body, wherein, two sides of the panel are respectively detachably connected with the first side plate and the second side plate through a first slide fastener component, the air outlet grid is detachably connected with the top plate through a second slide fastener component, which is the same as the traditional heat accumulating type electric heater, only the effect of electric heater heating is realized, however, compared with the invention, besides the process of electric heater heating, an electric ceramic furnace is added, because the electric ceramic furnace can generate heat during the operation process, the heat is wasted in the prior art, however, the invention adds a heat recovery and release cavity 14 inside the electric heater, the electric ceramic stove is used for utilizing heat generated by the electric ceramic stove and preventing waste of heat resources of household appliances.

With reference to the attached drawings 2, 3 and 4 of the specification, the external structure of the electric heating tube 3 is a serpentine structure and has a large heating area, the internal structure of the electric heating tube 3 is the heating wire 6 and the filler 7, the heating wire 6 is made of a nickel-chromium alloy material, the nickel-chromium alloy material has high-temperature resistance strength and is not easy to deform in high-temperature use, the plasticity after long-term use is good, the magnetism is free, the electric heating tube has the characteristics of large resistivity, thermal fatigue resistance, oxidation resistance and high-temperature shape stability, the effective utilization of electric energy can be ensured, the point heating conversion efficiency is higher compared with the traditional heating wire, the filler 7 is 98% of high-purity high-temperature electric grade magnesium oxide powder, the high-purity magnesium oxide has excellent alkali resistance and electric insulation at high temperature, the thermal expansion coefficient and the thermal conductivity are high, compared with the thermal conductivity of aluminum oxide being more than 2 times, the loss of the electrolyte is only 1/10 of the aluminum oxide, therefore, the heat transfer rate is higher, and better heat release efficiency is realized;

the above process was compared experimentally with a conventional electric heating tube 3 and resulted in comparative example 2, with the following specific data:

comparative example 2:

model number	Heat storage time/h	Heating time/h	Electric energy utilization rate%
				Nickel-chromium alloy electric heating tube	12	9	98％
Quartz electric heating tube	12	6	85％

It should be noted that the above experiments are all measured under the same electric power, the variable is the structure of the heating tube, the heat accumulation time is defined as the time consumed when the surface temperature of the electric heating tube is reduced to the room temperature (namely 28 ℃) under the same environment, the heat generation time is defined as the time consumed when the surface temperature of the electric heating tube is reduced to the room temperature under the same environment, and the electric energy utilization rate is defined as the efficiency of the heat energy conversion and utilization of the electric heating tube under the same electric power;

wherein, 2-8 have been selected in the electrothermal tube quantity and have been compared, when the electrothermal tube quantity is 3, 4, 5, compare the electric heater of other radical and have better heating effect, wherein, when the electrothermal tube quantity is 3, the electric heater volume is less this moment, be applicable to small-size family expenses, can form better heating effect in certain area, when the electrothermal tube quantity is 4, the heating effect increases to some extent, and the volume change is little, can be suitable for the heating of medium region, when the electrothermal tube quantity is 5, the heating effect is the best, be applicable to the heating of great region, when the electrothermal tube quantity is 6-8, although can realize the heating of great region, the cost is higher and the volume is great, occupation space is great, be unpractical to family expenses, therefore abandon preferably in this quantity scope.

According to the description and the attached drawings of fig. 5-6, the brick body 15 of the magnesium-iron brick 4 is provided with the slots 16, the magnesium-iron bricks 4 are oppositely placed in pairs in the heat storage cavity 2, the slots 16 are used for providing a placing space for the electric heating pipe 3, the limiting lugs 18 are used for fixing the electric heating pipe 3 to prevent the electric heating pipe 3 from shaking, and the heat dissipation grooves 17 are used for heat transfer to prevent overhigh heat from being concentrated in the same space;

the above procedure forms a comparative example 3 with the prior art insulation structure in the following specific manner:

comparative example 3: for example, in the utility model patent with publication number CN211177016U, a heat-accumulating type electric heater heat-insulating layer structure is disclosed, which comprises an air inlet heat-insulating plate, an air outlet heat-insulating plate, a heat-insulating cover plate and upper and lower space filling blocks; the heat accumulating type electric heater comprises an air inlet heat-insulating plate, a heat accumulating type electric heater shell and a heat accumulating type electric heater shell, wherein the air inlet heat-insulating plate is embedded at one side of an air inlet of the heat accumulating type electric heater shell, and a first vent hole is formed; the air outlet heat insulation plate is embedded at one side of an air outlet of the heat accumulating type electric heater shell, and a second vent hole is formed in the air outlet heat insulation plate; the heat-insulating cover plate is embedded between the heat-accumulating bricks of the heat-accumulating electric heater and the front and rear side walls of the shell of the heat-accumulating electric heater; the upper space filling block and the lower space filling block are arranged in gaps between the heat storage brick of the heat storage electric heater and the bottom surface and the top surface of the shell of the heat storage electric heater, the heat storage brick is adopted in the prior art, and the magnesium iron brick has the advantages of high heat conductivity coefficient and high specific heat capacity, good thermal shock resistance stability and hydration resistance, good volume stability and electrical insulation performance, and high density and strength.

Example 2: in this embodiment, the operation process and the operation principle are the same as those of embodiment 1, but the electromagnetic heating unit may be other household electric heating devices, such as a hot water kettle, besides the electric ceramic stove, the electric heating device is heated by converting electric energy into heat energy, and there is excess heat discharged, and the part of heat is still stored in the heat recovery releasing cavity 14 and is delivered to the indoor environment together with the heat in the heat storage cavity 2, so as to achieve the heating effect.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.