CN112039165A

CN112039165A - Low-temperature environment battery charging system

Info

Publication number: CN112039165A
Application number: CN202010957650.0A
Authority: CN
Inventors: 高晗; 马创; 张华晟
Original assignee: Dali Bureau of Extra High Voltage Transmission Co
Current assignee: Dali Bureau of Extra High Voltage Transmission Co
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2020-12-04
Anticipated expiration: 2040-09-10
Also published as: CN112039165B

Abstract

The application discloses low temperature environment battery charging system includes: the battery management system comprises a heat preservation box, a battery management module, a temperature sensor, a heating module and a heat dissipation module; the heat preservation box comprises a box body and a box cover; the box cover can be opened and closed and is covered on the top of the box body; a division plate is arranged in the box body; the interlayer plate divides the interior of the box body into a lower layer cavity and an upper layer cavity, and a charging area is arranged on the interlayer plate; a charging slot for the battery to be charged to movably extend into the lower cavity is arranged on the charging area; the heating module is used for providing hot air for the lower-layer cavity and the upper-layer cavity; the heat dissipation module is used for dissipating heat of the lower layer cavity and the upper layer cavity; the temperature sensor is used for detecting the temperature in the heat preservation box; the battery management module is respectively and electrically connected with the power supply battery, the temperature sensor, the heating module and the heat dissipation module. The battery has the advantages of stable and uniform heating effect, better charging efficiency guarantee, battery service life improvement and safe use.

Description

Low-temperature environment battery charging system

Technical Field

The application relates to the technical field of battery charging, in particular to a low-temperature environment battery charging system.

Background

A battery is a device that can convert chemical energy into electrical energy. The battery with the cyclic charge-discharge function can regenerate the internal active substances in a charge mode after discharging, store electric energy into chemical energy one by one and convert the chemical energy into electric energy again when discharging is needed. With the continuous development of society, batteries have become an indispensable portable power source. For example, unmanned aerial vehicle tours the condition such as operation, and the operator can long-time operation in order to guarantee unmanned aerial vehicle, often can carry charging device in time to charge for unmanned aerial vehicle's battery. However, in a high altitude and low temperature environment, not only the charging efficiency of the charging device for the battery to be charged is affected, but also the service life of the power supply battery and the battery to be charged is affected to some extent. Although the existing charging device has a heating function and can heat the battery to a certain extent, the existing charging device directly heats the battery or the battery to be charged in a surface mounting manner, the heating uniformity is poor, the charging efficiency is influenced to a certain extent, and the service life of the battery is influenced due to the risk that the battery is damaged by local overheating.

Disclosure of Invention

In view of this, an object of the present application is to provide a low-temperature battery charging system, which has stable and uniform heating effect, can better ensure charging efficiency, improve battery service life, and is safe to use.

To achieve the above technical object, the present application provides a low temperature environment battery charging system, including: the battery management system comprises a heat preservation box, a battery management module, a temperature sensor, a heating module and a heat dissipation module;

the heat insulation box comprises a box body and a box cover;

the box cover can be opened and closed and is covered on the top of the box body;

a division plate is arranged in the box body;

the interlayer plate divides the interior of the box body into a lower layer cavity and an upper layer cavity, and a charging area is arranged on the interlayer plate;

a charging slot for a battery to be charged to movably extend into the lower cavity is formed in the charging area;

the heating module is arranged in the heat insulation box and used for providing hot air for the lower-layer cavity and the upper-layer cavity;

the heat dissipation module is arranged on the heat insulation box and used for dissipating heat of the lower layer cavity and the upper layer cavity;

the power supply battery is arranged in the box body and is used for charging the battery to be charged;

the temperature sensor is arranged in the heat preservation box and used for detecting the temperature in the heat preservation box;

the battery management module is electrically connected with the battery, the temperature sensor, the heating module and the heat dissipation module respectively.

Further, the heating modules are multiple and respectively comprise a first fan and an electric heating element;

the electric heating element is arranged at the air inlet end of the first fan;

the lower layer cavity is communicated with the upper layer cavity;

the first fan is installed in the box body, the air inlet end is communicated with the outside of the heat insulation box, and the air outlet end is communicated with the lower-layer cavity.

Further, the heat dissipation module comprises a second fan;

the second fan is arranged on the box cover, the air inlet end is communicated with the upper layer cavity, and the air outlet end is communicated with the outside of the heat insulation box.

Furthermore, a communication port is formed in the interlayer plate;

the upper layer cavity is communicated with the lower layer cavity through the communication port.

Further, a third fan is mounted on the communication port;

the air inlet end of the third fan is communicated with the lower-layer cavity;

and the air outlet end of the third fan is communicated with the upper layer cavity.

Further, the battery is arranged in the lower cavity close to the first side wall;

the heat dissipation module is arranged at a second side wall position of the lower cavity opposite to the first side wall;

the battery management module and the temperature sensor are arranged in the lower layer cavity and are positioned between the heat dissipation module and the heat dissipation module;

the charging area is arranged on the interlayer plate and corresponds to a position between the heat dissipation module and the battery management module;

the communication port is arranged on the laminate and corresponds to the position of the power supply battery;

the heat dissipation module is arranged at the position of the box cover far away from the communication port.

Furthermore, a control area is also arranged on the interlayer plate;

the control area is internally provided with a control button, a display screen and an input/output interface;

the control button, the display screen and the input/output interface are respectively electrically connected with the battery management module.

Furthermore, the charging slots are distributed at intervals in a matrix;

gaps are formed between the slot sections of the adjacent charging slots in the lower cavity;

the bottom of the lower cavity is respectively provided with a charging seat which is in one-to-one correspondence with the charging slots and is used for inserting the battery to be charged;

the charging seat is electrically connected with the battery management module.

Furthermore, air guide wall parts connected with one side of the air outlet end of the first fan are respectively arranged on the front end wall and the rear end wall of the lower layer cavity, which are close to the heat dissipation module;

and an air guide space formed between the two air guide wall parts is gradually narrowed along the direction from the battery to the air outlet end of the first fan.

Further, the insulation can is a PE insulation can.

According to the technical scheme, the interlayer plate is arranged in the box body, the inner part of the box body is divided into the lower layer cavity and the upper layer cavity by the interlayer plate, and the upper layer cavity and the lower layer cavity are heated through the heating module. Utilize hot-blast heating methods can realize the more even heating to lower floor's chamber and upper chamber, guarantee charge efficiency that can be better improves battery life, also avoids the battery damage risk that the heating methods of direct contact battery brought, uses safelyr. In addition, a layered structure design is adopted, layered heating is realized, the lower cavity is heated to form main heating for treating the rechargeable battery, and the upper cavity is heated to form auxiliary heating for stretching the rechargeable battery out of the upper cavity, so that more comprehensive heating coating is realized, and the heating effect is further improved. Meanwhile, the hot air flow covered by the upper layer cavity can play a certain role in heat insulation and preservation for the lower layer cavity in the box opening state such as box opening inspection/checking and the like, and the direct contact between the interlayer plate and the external low-temperature air can be reduced by utilizing the hot air flow, so that the dissipation of heat inside the lower layer cavity is reduced, and the energy consumption is saved. And the temperature sensor who sets up can monitor the inside temperature condition of insulation can and feed back to battery management module to make things convenient for battery management module more accurate control heating module and radiating module.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic diagram illustrating an overall structure of a low-temperature environment battery charging system provided in the present application;

fig. 2 is a schematic diagram of a battery management module of a low-temperature environment battery charging system provided in the present application;

FIG. 3 is a schematic view of a first axial side of a heating module of a low ambient battery charging system as provided herein;

FIG. 4 is a schematic second axial side view of a heating module of a low ambient battery charging system as provided herein;

fig. 5 is a schematic diagram illustrating a hot air distribution structure of an upper chamber and a lower chamber of a low-temperature environment battery charging system provided in the present application;

fig. 6 is a schematic diagram illustrating temperature gradients formed by an upper chamber and a lower chamber of a low-temperature environment battery charging system provided in the present application;

fig. 7 is a schematic view illustrating distribution of hot air in a lower chamber of a low-temperature environment battery charging system provided in the present application;

in the figure: 11. a box cover; 12. a box body; 121. an air guide wall portion; 2. a interlayer plate; 21. a charging slot; 22. a control button; 23. a display screen; 24. an input/output interface; 25. a control area; 26. a charging region; 3. a battery; 4. a temperature sensor; 5. a heat dissipation module; 6. a battery management module; 61. a battery management circuit board; 62. an STM32 processor; 7. a heating module; 71. a first fan; 72. an electric heating element; 8. a third fan; 10. an upper cavity; 20. a lower cavity; 30. and (5) a battery to be charged.

Detailed Description

The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.

In the description of the embodiments of the present application, 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 in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application. 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 embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and can be, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise specifically stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The embodiment of the application discloses a low-temperature environment battery charging system.

Referring to fig. 1 and fig. 2, an embodiment of a low temperature environment battery charging system provided in the embodiment of the present application includes:

the system comprises a heat insulation box, a power supply battery 3, a battery management module 6, a temperature sensor 4, a heating module 7 and a heat dissipation module 5; the incubator comprises a case body 12 and a case cover 11; the box cover 11 can be opened and closed and is arranged on the top of the box body 12; a division plate 2 is arranged in the box body 12; the interlayer plate 2 divides the interior of the box body 12 into a lower layer cavity 20 and an upper layer cavity 10, and a charging area 26 is arranged on the interlayer plate 2; the charging area 26 is provided with a charging slot 21 for the battery 30 to be charged to movably extend into the lower cavity 20; the heating module 7 is arranged in the heat insulation box and used for providing hot air for the lower layer cavity 20 and the upper layer cavity 10; the heat dissipation module 5 is arranged in the heat insulation box and used for dissipating heat of the lower layer cavity 20 and the upper layer cavity 10; the battery 3 is arranged in the box body 12 and is used for charging the battery 30 to be charged; the temperature sensor 4 is arranged in the heat preservation box and used for detecting the temperature in the heat preservation box; the battery management module 6 is electrically connected to the power supply battery 3, the temperature sensor 4, the heating module 7, and the heat dissipation module 5, respectively.

Specifically, the inside of the case 12 is partitioned into the lower chamber 20 and the upper chamber 10 by the partition plate 2 by providing the partition plate 2 in the case 12, and the upper chamber 10 and the lower chamber 20 are heated by hot air by the heating module 7. Utilize hot-blast heating methods can realize the more even heating to lower floor's chamber 20 and upper chamber 10, guarantee charge efficiency that can be better improves battery life, also avoids the battery damage risk that the heating methods of direct contact battery brought, uses safelyr. In addition, a layered structure design is adopted, layered heating is realized, the lower layer cavity 20 is heated to form main heating of the battery 30 to be charged, and the upper layer cavity 10 is used for auxiliary heating of the part, extending out of the upper layer cavity 10, of the battery 30 to be charged, so that more comprehensive heating and cladding are realized, and the heating effect is further improved. Meanwhile, the hot air flow covered by the upper layer cavity 10 can play a certain role in heat insulation and preservation for the lower layer cavity 20 in an open box state such as open box inspection/checking, and the like, and the direct contact between the interlayer plate 2 and the external low-temperature air can be reduced by utilizing the hot air flow, so that the dissipation of heat inside the lower layer cavity 20 is reduced, and the energy consumption is saved. The temperature sensor 4 can monitor the temperature inside the heat insulation box and feed back the temperature to the battery management module 6, so that the battery management module 6 can control the heating module 7 and the heat dissipation module 5 more accurately. As shown in fig. 2, the battery management module 6 may include a battery management circuit board 61 and an STM32 processor 62 embedded on the battery management circuit board 61, and of course, other types of processors may be used, which is not limited specifically.

The above is a first embodiment of a low-temperature environment battery charging system provided in the present application, and the following is a second embodiment of a low-temperature environment battery charging system provided in the present application, specifically please refer to fig. 1 to 7.

A low ambient battery charging system comprising: the system comprises a heat insulation box, a power supply battery 3, a battery management module 6, a temperature sensor 4, a heating module 7 and a heat dissipation module 5; the incubator comprises a case body 12 and a case cover 11; the box cover 11 can be opened and closed and is arranged on the top of the box body 12; a division plate 2 is arranged in the box body 12; the interlayer plate 2 divides the interior of the box body 12 into a lower layer cavity 20 and an upper layer cavity 10, and a charging area 26 is arranged on the interlayer plate 2; the charging area 26 is provided with a charging slot 21 for the battery 30 to be charged to movably extend into the lower cavity 20; the heating module 7 is arranged in the heat insulation box and used for providing hot air for the lower layer cavity 20 and the upper layer cavity 10; the heat dissipation module 5 is arranged in the heat insulation box and used for dissipating heat of the lower layer cavity 20 and the upper layer cavity 10; the battery 3 is arranged in the box body 12 and is used for charging the battery 30 to be charged; the temperature sensor 4 is arranged in the heat preservation box and used for detecting the temperature in the heat preservation box; the battery management module 6 is electrically connected to the power supply battery 3, the temperature sensor 4, the heating module 7, and the heat dissipation module 5, respectively.

Further, as shown in fig. 3 and 4, a plurality of heating modules 7 may be provided, so as to further improve the heating efficiency, and each of the corresponding heating modules 7 may include a first fan 71 and an electric heating element 72; the electric heating element 72 is arranged at the air inlet end of the first fan 71; the lower layer cavity 20 is communicated with the upper layer cavity 10; the first fan 71 is installed on the cabinet 12, and the air inlet end is communicated with the outside of the thermal insulation box, and the air outlet end is communicated with the lower chamber 20.

Specifically, when the heating is in use, the battery management module 6 may control the electric heating element 72 and the first fan 71 to be turned on, so as to generate hot air, and further, the lower chamber 20 and the upper chamber 10 may be heated by the hot air. Of course, the heating module 7 may be other conventional hot air fan modules, and is not limited in particular. In this embodiment, heating module 7 can heat lower floor's chamber 20 and upper chamber 10 respectively, perhaps heat lower floor's chamber 20, and realize the intercommunication design of lower floor's chamber 20 and upper chamber 10, realize gradient formula intercommunication heating, realize the heating to lower floor's chamber 20 through the intercommunication with lower floor's chamber 20, the intercommunication of rethread lower floor's chamber 20 and upper chamber 10, recycle hot-blast flow and realize the heating to upper chamber 10, such design can be better the heat of utilization, also practice thrift heating module 7's application quantity. This design is also preferred in the present application for this purpose. In addition, the electric heating element 72 in the present embodiment may be a heating wire, and is not limited in particular.

Further, as shown in fig. 5 and 6, for example, the upper chamber 10 is communicated with the lower chamber 20, the heat dissipation module 5 may include a second fan; the second fan can only be installed in case lid 11, and the air inlet end communicates upper chamber 10, and the air outlet end communicates the insulation can outside for derive the hot-blast in upper chamber 10 and the lower chamber 20, realize the heat dissipation. When the temperature inside the thermal insulation box exceeds a preset temperature value and heat dissipation is needed to be performed within a stable temperature range, heating of the electric heating element 72 can be stopped, the first fan 71 and the second fan are started to achieve heat dissipation, or the first fan 71 and the electric heating element 72 are stopped, and only the second fan is started to achieve heat dissipation, which is not limited specifically.

Further, as shown in fig. 5 and 6, in order to realize the communication between the upper chamber 10 and the lower chamber 20, the interlayer plate 2 may be provided with a communication port; the upper chamber 10 is communicated with the lower chamber 20 through a communication port.

Further, as shown in fig. 5 and 6, in order to improve the efficiency of the hot air conduction between the upper chamber 10 and the lower chamber 20, a third fan 8 may be installed on the communication port; the air inlet end of the third fan 8 is communicated with the lower-layer cavity 20; the air outlet end of the third fan 8 is communicated with the upper cavity 10. In order to cover the upper-layer cavity 10 with the hot air on the interlayer plate 2, the air outlet end of the third fan 8 may be disposed in a direction parallel to the horizontal direction of the interlayer plate 2, or an air guiding cover (not shown) is added to the air outlet end of the third fan 8, so that the hot air guided out by the third fan 8 can flow in the horizontal direction of the interlayer plate 2 after passing through the air guiding cover.

Further, as for the installation and fixation of the power supply battery 3, the power supply battery 3 may be installed at a position of the lower cavity 20 close to the first side wall, wherein if the power supply battery 3 is longer, a corresponding installation opening may be formed on the interlayer plate 2 for the power supply battery 3 to extend out, which is not limited specifically. Correspondingly, the heat dissipation module 5 can be installed at a second side wall position of the lower cavity 20 opposite to the first side wall, that is, at an opposite side position of the battery 3, so that the hot air generated by the heat dissipation module 5 can better fill the lower cavity 20; correspondingly, the battery management module 6 and the temperature sensor 4 are installed in the lower cavity 20 and located between the heat dissipation module 5 and the heat dissipation module 5; correspondingly, the charging area 26 is arranged on the interlayer plate 2 corresponding to the position between the heat dissipation module 5 and the battery management module 6; as shown in fig. 5 and 6, the communication port may be provided at a position corresponding to the battery 3 on the laminate; when the length of the power supply battery 3 is large and needs to extend out of the interlayer plate 2, the communication port can be arranged at a position corresponding to the battery management module 6, namely the third fan is arranged at one side of the power supply battery extending out of the interlayer plate 2, and the specific limitation is not required; the heat dissipation module 5 is mounted on the case cover 11 at a position away from the communication opening.

Specifically, with such a structural layout, the hot air generated by the heat dissipation module 5 can sequentially pass through the battery 30 to be charged, the battery management module 6, the temperature sensor 4 and the lower cavity 20 for recharging the battery 3, so as to realize heating with the first temperature gradient. And the communication port and the heat dissipation module 5 are oppositely far away from each other, so that hot air entering the upper cavity 10 through the communication port can be better filled in the upper cavity 10 in a closed box state and then is dissipated out of the heat dissipation module 5, and a second temperature gradient is realized. Through the application of the first temperature gradient and the second temperature gradient, the heat can be fully utilized, and the uniformity of internal heating is further ensured. In addition, temperature sensor 4 can be one or more in this application, specifically can all install in lower chamber 20 and be used for monitoring lower chamber 20's temperature, can calculate average temperature value under a plurality of circumstances to obtain more accurate temperature information, control more accurate control heating module 7 and radiating module 5 work.

Further, in the case of a plurality of temperature sensors 4, as shown in fig. 1, the temperature sensors may be disposed on the upper chamber 10 for monitoring the temperature of the upper chamber 10, and this temperature monitoring may be used only as a monitoring, not as a control basis for the heating module 7, and is not particularly limited. The sensors disposed in the lower cavity 20 may be mounted together on the battery management module 6, without particular limitation.

Further, as shown in fig. 1 and 5, the interlayer plate 2 is further provided with a control area 25; a control button 22, a display screen 23 and an input/output interface 24 are respectively arranged in the control area 25; the control button 22, the display 23, and the input/output interface 24 are electrically connected to the battery management module 6. The control button 22 is convenient for operation and control, and the display screen 23 can be used for displaying the power of the electric heating element 72 of the heating module 7 and the power of the first fan 71 acquired and processed by the STM32 processor 62 on the battery management module 6; the power of the second fan of the heat dissipation module 5; power and power information of the battery 3; current power information, charging information, etc. of the battery 30 to be charged. The input interface of the input/output interface 24 may be used to replenish the power supply battery 3, and the output interface may supply power to other working devices/mobile terminals, etc. The control region 25 may be distributed between the communication port and the charging region 26, and is not particularly limited. The STM32 processor 62 on the battery management module 6 includes, but is not limited to, controlling the heating module 7 electrical heating element 72 power, the first fan 71 power, the second fan power of the heat dissipation module 5, the third fan 8 power, the battery 3 charge mode control, etc.

Further, in order to improve the charging efficiency of multiple batteries, a plurality of charging slots 21 may be arranged in a matrix at intervals; gaps are formed between the slot sections of the adjacent charging slots 21 in the lower-layer cavity 20, so that an air duct can be formed, hot air can flow through the gaps, the blocking of hot air is reduced, meanwhile, the distance of the inserted slot sections can be smaller in design, the limiting effect on the battery 30 to be charged can be achieved, and the part, extending into the lower-layer cavity 20, of the battery 30 to be charged is kept to be in contact with the hot air as much as possible; certainly, a certain gap can be formed between the inner wall of the charging slot 21 and the outer wall of the battery to be charged, so that hot air can flow through the gap, the battery 30 to be charged is better heated, and the gap is matched with the communicating port, so that a certain internal heat circulation is formed between the upper-layer cavity 10 and the lower-layer cavity 20. In addition, the bottom of the lower cavity 20 may be respectively provided with a charging seat corresponding to the charging slots 21 one by one and allowing the battery 30 to be charged to be inserted therein; the charging seat is electrically connected with the battery management module 6. Insert like this and treat rechargeable battery 30, starting switch can realize charging, of course, also can set up the interface that charges in the control area 25 of interlayer board 2, and the part is treated rechargeable battery 30 and is inserted the back, if the tip that charges stretches out upper chamber 10 up, also can connect the corresponding mouth that charges through the charging wire, realizes charging, does not do the restriction specifically.

Further, as shown in fig. 7, in order to provide a drawing and guiding function for the hot air generated by the heating module 7, the hot air is better blown to the battery 30 to be charged, the battery management module 6, the temperature sensor 4 and the battery 3 in sequence. Air guide wall parts 121 connected with one side of the air outlet end of the first fan 71 can be respectively arranged on the front end wall and the rear end wall in the lower cavity 20, which are close to the heat dissipation module 5; the air guide space formed between the two air guide wall portions 121 is gradually narrowed toward the air outlet end of the first fan 71 along the power supply battery 3. Those skilled in the art can make appropriate changes based on the above without limitation.

Further, the insulation box may be a PE insulation box. The polyethylene material has the advantages of light weight, low manufacturing cost, excellent low temperature resistance, low use temperature of-100 to-70 ℃, good chemical stability and the like, and can be prepared by adopting a polyethylene heat-insulating material. Those skilled in the art can make appropriate changes based on the above without limitation.

Further, in order to improve the safety of use, a fire extinguishing device such as a dry powder fire extinguishing ball (not shown) can be arranged in the lower-layer cavity 20, once a fire breaks out inside, the dry powder fire extinguishing ball can be triggered in time to extinguish the fire, and a person skilled in the art can make appropriate changes based on the situation, and is not limited in particular.

The charging process of the present application may be, for example, as follows:

s1, taking down the battery 30 to be charged from, for example, a multi-rotor drone, and putting it into the charging slot 21 in the incubator, where the state of the battery 30 to be charged and the state of the temperature in the incubator can be viewed from the display 23;

s2, turning on the switch button in the control area 25, electrifying to run, and closing the box cover 11 after confirming that the box cover is in the charging state from the display screen 23;

and S3, after the charging is finished, the charged battery is taken out of the heat preservation box, the electric quantity condition of the battery 3 can be checked at the moment, and the battery 3 is charged through the input and output interface 24 according to the requirement.

While the present application provides a low temperature environment battery charging system, it will be appreciated by those skilled in the art that various modifications may be made to the system and method for charging a battery in a low temperature environment.

Claims

1. A low ambient battery charging system, comprising: the battery management system comprises a heat preservation box, a battery management module, a temperature sensor, a heating module and a heat dissipation module;

the heat insulation box comprises a box body and a box cover;

a division plate is arranged in the box body;

2. The system of claim 1, wherein the plurality of heating modules each comprise a first fan and an electric heating element;

the electric heating element is arranged at the air inlet end of the first fan;

the lower layer cavity is communicated with the upper layer cavity;

3. The system of claim 2, wherein the heat dissipation module comprises a second fan;

4. The system according to claim 3, wherein the interlayer plate is provided with a communication port;

5. The system according to claim 4, wherein a third fan is mounted on the communication port;

the air inlet end of the third fan is communicated with the lower-layer cavity;

6. The system according to claim 5, wherein the battery is mounted in the lower cavity adjacent to the first sidewall;

7. A low-temperature environment battery charging system as claimed in claim 1, wherein the interlayer plate is further provided with a control area;

8. The system according to claim 1, wherein the charging slots are arranged in a matrix at intervals;

the charging seat is electrically connected with the battery management module.

9. The system of claim 2, wherein the front end wall and the rear end wall of the lower chamber are respectively provided with a wind guide wall portion adjacent to the air outlet end of the first fan at a position close to the heat dissipation module;

10. The system of claim 1, wherein the thermal container is a PE thermal container.