A heating and heat preservation device for energy storage batteries in cold areas

Abstract

The present invention proposes a heating and heat preservation device for energy storage batteries in cold areas, including a battery box and a diesel circulation heating machine. The battery box includes a shell and an upper cover. The shell includes an outer shell and an inner shell. A first vacuum interlayer is provided between the inner shell and the outer shell. A water storage interlayer is provided in the inner shell. Two water pipes are provided on the top of the inner shell. The upper cover is installed on the top of the shell. A second vacuum interlayer is provided inside the upper cover. A water delivery hole and a wiring hole are provided on the upper cover. A water delivery joint is installed at each water delivery hole. The water delivery joint is connected to the water delivery pipe. The input end of the diesel circulation heating machine is connected to a water delivery joint, and its output end is connected to another water delivery joint. The wiring hole is connected to the inner shell. A temperature sensor is provided on the inner wall of the inner shell, and the temperature sensor is connected to the diesel circulation heating machine. The present invention can ensure that the ambient temperature of the energy storage battery is always within the optimal operating temperature range of the battery, avoid excessively high or low temperatures in the battery box, and ensure the battery life of the energy storage battery.

Description

Technical Field

[0001] The invention relates to the technical field of heat preservation of energy storage batteries, and in particular to a heating and heat preservation device for energy storage batteries in cold regions. Background Art

[0002] With the continuous development of coal resources in my country, spontaneous combustion in open-pit coal mines has become one of the major disasters that damage coal resources and pollute the environment. The current mainstream ground technology for monitoring and preventing spontaneous combustion in open-pit coal mines is infrared thermal imaging scanning monitoring and alarm technology.

[0003] Since most coal mines are located in remote suburbs and deserts, it is difficult for the power system to fully cover them. Therefore, the existing infrared detection scanning alarm system mainly relies on solar panels and energy storage battery systems for power supply. This mode is particularly evident in Xinjiang. However, the energy storage battery power supply mode has great instability, especially in the cold winter. Under the dual effects of reduced sunlight radiation and low temperature, the endurance of the energy storage battery is greatly reduced, and it is difficult to support the full-day operation of the infrared thermal imaging detection alarm system. Therefore, it is necessary to take insulation and heating measures for the energy storage battery to improve its endurance. Most of the existing battery insulation devices lack effective heating measures; and the insulation devices with heating function mostly adopt electric heating, which is difficult to play a role in remote areas without power system; at the same time, the main material of the insulation device is mostly insulation material with low thermal conductivity and low rigidity, which is difficult to effectively protect the battery in harsh outdoor environments. Summary of the invention

[0004] In order to solve the problems existing in the background technology, the present invention proposes a heating and heat preservation device for energy storage batteries in cold areas, which overcomes the current situation that the heating function of the battery insulation box is difficult to play a role in an environment without the power system, and at the same time has the battery protection function in harsh environments. The technical solution of the present invention is as follows:

[0005] It comprises a battery box and a diesel circulation heating machine, wherein the battery box comprises a shell and an upper cover, wherein the shell comprises an outer shell and an inner shell arranged in the outer shell, a first vacuum interlayer is arranged between the inner shell and the outer shell, and the first vacuum interlayer is distributed on the side wall and the bottom of the shell, and water storage interlayers are arranged in the side wall and the bottom plate of the inner shell and are interconnected, and two water pipes connected to the water storage interlayers are arranged on the top of the inner shell, and the upper cover is installed on the top of the shell, and a silicone pad for sealing is arranged at the connection between the upper cover and the shell, and a second vacuum interlayer is arranged inside the upper cover, and water delivery holes and wiring holes are arranged on the upper cover, and the number of the water delivery holes corresponds to the number of the water delivery pipes, and a water delivery joint is installed at each water delivery hole, and the water delivery joint is connected to the water delivery pipe, the input end of the diesel circulation heating machine is connected to a water delivery joint, and the output end of the diesel circulation heating machine is connected to another water delivery joint, and the wiring hole is connected to the inner shell;

[0006] A temperature sensor is provided on the inner wall of the inner shell, and the temperature sensor is connected to the diesel circulation heating machine.

[0007] Preferably, it also includes a cooling system, the cooling system includes a cold water tank and a water pump, and the water pump input end is connected to the cold water tank;

[0008] The water delivery joint is a three-way water delivery joint, the three channels of one three-way water delivery joint are respectively connected to the corresponding water delivery hole, the input end of the diesel circulation heater, and the cold water tank, and the three channels of the other three-way water delivery joint are respectively connected to the corresponding water delivery hole, the output end of the diesel circulation heater, and the output end of the water pump;

[0009] The temperature sensor is connected to the water pump.

[0010] Preferably, the outer wall of the water pipe is provided with a first external thread, the inner wall of the channel connecting the water joint and the water pipe is provided with a first internal thread, the outer wall of the water pipe is sleeved with a first silicone sealing ring, the water joint is connected to the water pipe through the cooperation of the first external thread and the first internal thread, the first silicone sealing ring is located between the water joint and the top of the inner shell body, and the water joint squeezes the first silicone sealing ring.

[0011] Preferably, the aperture of the lower part of the wiring hole is smaller than the aperture of the upper part of the wiring hole, a wiring bolt is provided in the upper part of the wiring hole, a through hole is provided in the wiring bolt, a second external thread is provided on the outer wall of the wiring bolt, a second internal thread is provided on the inner wall of the upper part of the wiring hole, a second silicone sealing ring is provided in the upper part of the wiring hole, the wiring bolt is connected to the wiring hole by cooperation of the second external thread and the second internal thread, the second silicone sealing ring is located below the wiring bolt, and the wiring bolt squeezes the second silicone sealing ring.

[0012] Preferably, the inner shell body is connected to the outer shell body through an upper connecting beam and a lower connecting beam, a first clamping block is provided on the outer side of the top of the two opposite side walls of the outer shell body, a first clamping groove is provided on the inner side of the top of the two opposite side walls of the inner shell body, a second clamping groove is provided below one side of the lower connecting beam, and a third clamping groove is provided above the other side of the lower connecting beam, the first clamping block is arranged in the second clamping groove, and a second clamping block and a third clamping block are respectively provided at both ends of the upper connecting beam, the second clamping block is arranged in the first clamping groove, and the third clamping block is arranged in the third clamping groove.

[0013] Preferably, a first slot and a second slot are provided on both sides of the bottom of the upper cover, the tops of the two side walls of the inner shell without the upper connecting beam are inserted in the first slot, and the tops of the two side walls of the outer shell without the upper connecting beam are inserted in the second slot.

[0014] Preferably, the silicone pad is respectively arranged on the bottom of the upper cover, the inner wall of the first slot and the inner wall of the second slot, and the contact surface between the upper connecting beam and the inner shell, the contact surface between the lower connecting beam and the outer shell, and the contact surface between the upper connecting beam and the lower connecting beam are also provided with silicone pads for sealing.

[0015] Preferably, the inner wall of the outer shell, the outer wall of the inner shell and the bottom of the upper cover are all provided with thermal insulation coating.

[0016] Preferably, the outer shell is provided with an exhaust pipe connected with the first vacuum interlayer, and a one-way valve is provided in the exhaust pipe.

[0017] Preferably, the inner wall of the water storage interlayer of the inner shell is provided with a waterproof coating.

[0018] The present invention has the following beneficial effects:

[0019] 1. The present invention adopts the overall structure of the heat preservation coating vacuum layer heat preservation coating heating layer, which ensures the heat preservation performance of the battery box, greatly reduces the heat loss of the internal environment of the battery box, and adopts a diesel circulation heater to supply constant temperature hot water to the water storage interlayer, so that the water storage interlayer forms a heating layer, and cooperates with the temperature sensor to ensure the constant temperature of the supplied water, thereby ensuring that the ambient temperature of the energy storage battery is always within the optimal operating temperature range of the battery, avoiding the temperature in the battery box being too high or too low, further ensuring the heat preservation effect, and ensuring the battery life of the energy storage battery;

[0020] 2. The battery box of the present invention adopts a plug-in connection structure, the device is easy to disassemble, the operation is simple and flexible, and the reliability is high. At the same time, accessories of different materials can be replaced according to environmental requirements, and the environmental adaptability is strong;

[0021] 3. The present invention is also provided with a cooling system. When the battery temperature is higher than the set upper temperature limit, the temperature sensor detects the temperature abnormality and starts the cooling system. The cooling system performs water cooling on the battery box to avoid overheating and fire of the energy storage battery, thereby ensuring the service life and safety of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the battery box structure when the upper cover and the shell are not connected;

[0024] Figure 3 It is a side cross-sectional view of the battery box of the present invention;

[0025] Figure 4 This is a schematic diagram of the upper cover structure of the present invention;

[0026] Figure 5 It is a front cross-sectional view of the upper cover of the present invention;

[0027] Figure 6 It is a side cross-sectional view of the upper cover of the present invention;

[0028] Figure 7 This is a schematic diagram of the outer shell structure of the present invention;

[0029] Figure 8 It is a front cross-sectional view of the outer shell of the present invention;

[0030] Fig. 9 This is a schematic diagram of the inner shell structure of the present invention;

[0031] Fig.10 It is a front cross-sectional view of the inner shell of the present invention;

[0032] Fig.11 It is a schematic diagram of the upper connecting beam structure of the present invention;

[0033] Fig.12 It is a left view of the upper connecting beam of the present invention;

[0034] Fig.13 This is a schematic diagram of the lower connecting beam structure of the present invention;

[0035] Fig.14 It is a schematic diagram of the structure after the upper connecting beam, the lower connecting beam and the shell are spliced ​​together in the present invention;

[0036] Fig.15 for Fig.14 The enlarged structural diagram at A in the middle;

[0037] Fig.16 This is a schematic diagram of the wiring bolt structure of the present invention;

[0038] Fig.17 It is a schematic diagram of the combination of the wiring bolt and the second silicone sealing ring of the present invention;

[0039] Fig.18 This is a schematic diagram of the structure of the three-way water delivery joint of the present invention;

[0040] Fig.19 It is a schematic diagram of the combination of the three-way water supply joint and the first silicone sealing ring of the present invention.

[0041] Markings in the figure: 1. Upper cover; 2. Outer shell; 3. Inner shell; 4. Upper connecting beam; 5. Lower connecting beam; 6. Three-way water supply joint; 7. Routing bolt; 8. Diesel circulation heater; 9. Water supply pipe; 10. Cold water tank; 11. Silicone pad; 12. First vacuum interlayer; 13. Thermal insulation coating; 14. First external thread; 15. Water pump; 16. First silicone sealing ring; 17. Second silicone sealing ring; 18. Water supply hole; 19. Routing hole; 20. Handle; 21. Second vacuum interlayer; 22. First card block; 23. One-way valve; 24. Exhaust pipe; 25. Temperature sensor; 26. First card slot; 27. Water storage interlayer; 28. Second card block; 29. ​​Third card block; 30. Third card slot; 31. Second card slot; 32. First slot; 33. Second slot. DETAILED DESCRIPTION

[0042] In order to make the present invention clearer and more understandable, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the given embodiment is only one of the implementation methods and does not represent all embodiments.

[0043] In this article, the terms "upper, lower, inside, outside" and the like are established based on the positional relationships shown in the drawings. Depending on the different drawings, the corresponding positional relationships may also change accordingly. Therefore, they cannot be understood as absolute limitations on the scope of protection.

[0044] Combined with Figure 1 -Attached Fig.19 A heating and heat preservation device for energy storage batteries in cold regions, comprising a battery box and a diesel circulation heater 8, wherein the battery box comprises a shell and an upper cover 1, wherein a handle 20 is provided on the top of the upper cover 1, wherein the shell comprises an outer shell 2 and an inner shell 3 disposed in the outer shell 2, wherein a first vacuum interlayer 12 is provided between the inner shell 3 and the outer shell 2, wherein the first vacuum interlayer 12 is distributed on the side wall and the bottom of the shell, wherein water storage interlayers 27 are interconnected in the side wall and the bottom plate of the inner shell 3, wherein two water delivery pipes 9 are provided on the top of the inner shell 3 and are connected to the water storage interlayer 27 The upper cover 1 is installed on the top of the shell, and a silicone pad 11 for sealing is provided at the connection between the upper cover 1 and the shell. A second vacuum interlayer 21 is provided inside the upper cover 1. A water delivery hole 18 and a wiring hole 19 are provided on the upper cover 1. The number of the water delivery holes 18 corresponds to the number of the water delivery pipes 9. A water delivery joint is installed at each water delivery hole 18, and the water delivery joint is connected to the water delivery pipe 9. The input end of the diesel circulation heating machine 8 is connected to a water delivery joint, and the output end of the diesel circulation heating machine 8 is connected to another water delivery joint. The wiring hole 19 is connected to the inner shell 3;

[0045] It also includes a cooling system, which includes a cold water tank 10 and a water pump 15, and the input end of the water pump 15 is connected to the cold water tank 10;

[0046] The water delivery joint is a three-way water delivery joint 6, the three channels of one three-way water delivery joint 6 are respectively connected to the corresponding water delivery hole 18, the input end of the diesel circulation heating machine 8, and the cold water tank 10, and the three channels of the other three-way water delivery joint 6 are respectively connected to the corresponding water delivery hole 18, the output end of the diesel circulation heating machine 8, and the output end of the water pump 15;

[0047] The inner wall of the inner shell 3 is provided with a temperature sensor 25 , and the temperature sensor 25 is connected to the diesel circulation heater 8 and the water pump 15 respectively.

[0048] The energy storage battery is placed in the inner shell 3 , and the circuits of the energy storage battery and the wires of the temperature sensor 25 extend from the wiring holes 19 to the outside of the shell.

[0049] Specifically, the outer wall of the water pipe 9 is provided with a first external thread 14, the inner wall of the channel connecting the water joint and the water pipe 9 is provided with a first internal thread, the outer wall of the water pipe 9 is sleeved with a first silicone sealing ring 16, the water joint is connected to the water pipe 9 through the cooperation of the first external thread 14 and the first internal thread, the first silicone sealing ring 16 is located between the water joint and the top of the inner shell 3, and the water joint squeezes the first silicone sealing ring 16; the water joint is installed on the water pipe 9 through a threaded connection, and as the water joint is tightened, the first silicone sealing ring 16 is squeezed, and the first silicone sealing ring 16 closes the gap between the water pipe 9 and the water hole 18 and the water joint, thereby ensuring the sealing effect of the battery box;

[0050] The aperture of the lower part of the wiring hole 19 is smaller than the aperture of the upper part of the wiring hole 19, a wiring bolt 7 is provided in the upper part of the wiring hole 19, a through hole is provided in the wiring bolt 7, a second external thread is provided on the outer wall of the wiring bolt 7, a second internal thread is provided on the inner wall of the upper part of the wiring hole 19, a second silicone sealing ring 17 is provided in the upper part of the wiring hole 19, the wiring bolt 7 is connected to the wiring hole 19 by the cooperation of the second external thread and the second internal thread, the second silicone sealing ring 17 is located below the wiring bolt 7, and the wiring bolt 7 squeezes the second silicone sealing ring 17; the line passes through the wiring hole 19 and the through hole of the wiring bolt 7, the wiring bolt 7 is screwed into the wiring hole 19, as the wiring bolt 7 is tightened, the second silicone sealing ring 17 is squeezed, and the second silicone sealing ring 17 seals the gap between the wire and the wiring hole 19 and the wiring bolt 7, thereby meeting the wiring requirements and ensuring the sealing effect of the battery box.

[0051] Specifically, the inner shell 3 is connected to the outer shell 2 through an upper connecting beam 4 and a lower connecting beam 5. The outer sides of the tops of the two opposite side walls of the outer shell 2 are provided with first clamping blocks 22, and the inner sides of the tops of the two opposite side walls of the inner shell 3 are provided with first clamping grooves 26. A second clamping groove 31 is provided below one side of the lower connecting beam 5, and a third clamping groove 30 is provided above the other side of the lower connecting beam 5. The first clamping block 22 is arranged in the second clamping groove 31. The two ends of the upper connecting beam 4 are respectively provided with a second clamping block 28 and a third clamping block 29. The second clamping block 28 is arranged in the first clamping groove 26, and the third clamping block 29 is arranged in the third clamping groove 30. The upper connecting beam 4 and the lower connecting beam 5 are made of stainless steel. The heat transfer coefficient of stainless steel is low, which can reduce the heat conduction on both sides of the inside and outside, and the heat preservation effect is better. More specifically, during installation, the second block 28 of the upper connecting beam 4 is first connected to the first slot 26 of the inner shell 3, and the third block 29 of the upper connecting beam 4 is located on the outside of the outer shell 2. An installation space for the lower connecting beam 5 is formed between the upper connecting beam 4 and the side wall of the outer shell 2 on which the first block 22 is provided. When the lower connecting beam 5 is inserted from the installation space, the first block 22 of the outer shell 2 is inserted into the second slot 31 of the lower connecting beam 5, and the third block 29 of the upper connecting beam 4 is inserted into the third slot 30. When the lower connecting beam 5 is fully inserted into the installation space, the connection between the inner shell 3 and the outer shell 2 is completed.

[0052] The bottom of the upper cover 1 is provided with a first slot 32 and a second slot 33 on both sides, and the tops of the two side walls of the inner shell 3 without the upper connecting beam 4 are inserted into the first slot 32, and the tops of the two side walls of the outer shell 2 without the upper connecting beam 4 are inserted into the second slot 33. The shell is connected with the upper connecting beam 4, the lower connecting beam 5 and the upper cover 1 in a plug-in structure, which is convenient for disassembly and assembly, thereby facilitating the placement and removal of the energy storage battery and the replacement or maintenance of the components of the battery box.

[0053] Specifically, the silicone pad 11 is respectively arranged on the bottom of the upper cover 1, the inner wall of the first slot 32 and the inner wall of the second slot 33. The contact surface between the upper connecting beam 4 and the inner shell 3, the contact surface between the lower connecting beam 5 and the outer shell 2, and the contact surface between the upper connecting beam 4 and the lower connecting beam 5 are also provided with a silicone pad 11 for sealing. The silicone pad 11 can seal the gaps between the upper cover 1 and the shell, the upper connecting beam 4 and the shell, the lower connecting beam 5 and the shell, and the upper connecting beam 4 and the lower connecting beam 5, thereby ensuring the sealing of the connection between the components, thereby ensuring the thermal insulation effect of the battery box.

[0054] Specifically, the inner wall of the outer shell 2, the outer wall of the inner shell 3 and the bottom of the upper cover 1 are all provided with a thermal insulation coating 13, which can improve the thermal insulation effect. The thermal insulation coating 13 can be a sepiolite composite silicate thermal insulation coating 13.

[0055] Specifically, the outer shell 2 is provided with an exhaust pipe 24 connected to the first vacuum interlayer 12, and a one-way valve 23 is provided in the exhaust pipe 24. The one-way valve 23 ventilates from the first vacuum interlayer 12 to the outside of the outer shell 2. Because the first vacuum interlayer 12 will circulate with the outside air before the upper cover 1 is installed with the shell, when the upper cover 1 is connected with the shell, the first vacuum interlayer 12 is not completely in a vacuum state. The vacuum exhaust device can be connected to the exhaust pipe 24, and the vacuum exhaust device can be used to exhaust the first vacuum interlayer 12 so that the first vacuum interlayer 12 is in a vacuum state.

[0056] Specifically, the inner wall of the water storage interlayer 27 of the inner shell 3 is provided with a waterproof coating, which can prevent the inner wall of the water storage interlayer 27 of the inner shell 3 from corrosion and rust, thereby improving the durability of the inner shell 3.

[0057] The temperature range is set to 20°C-28°C in the control module of the diesel circulation heating machine 8, and 20°C is used as the trigger value for the execution of the control program of the diesel circulation heating machine 8. The temperature sensor 25 is connected to the control module of the diesel circulation heating machine 8 through a wire to provide a real-time temperature signal for the control module of the diesel circulation heating machine 8. When the control module of the diesel circulation heating machine 8 receives a temperature signal lower than the trigger value of 20°C, the diesel circulation heating machine 8 starts and injects hot water into the water storage interlayer 27 of the inner shell 3 to heat the shell. The temperature of the injected hot water is a constant temperature of 30°C. When the control module of the diesel circulation heating machine 8 receives a temperature signal in the inner shell 3 higher than 28°C, the diesel circulation heating machine 8 stops, saving diesel consumption;

[0058] The start-stop temperature range is set to 40°C-55°C in the water pump 15 control module, and the water pump 15 control module is also connected to the temperature sensor 25. When the water pump 15 control module receives a temperature signal of 55°C, the water pump 15 starts to send the cold water in the cold water tank 10 into the water storage interlayer 27 to circulate and take away the heat of the battery. When the water pump 15 control module receives a temperature signal that drops to 40°C, the water pump 15 stops working. The water in the cold water tank 10 is cold water with antifreeze added.

[0059] Working process: The temperature sensor 25 inside the inner shell 3 monitors the temperature of the internal environment of the battery, and transmits temperature signals to the control module of the diesel circulation heater 8 and the control module of the water pump 15. When the temperature sensor 25 detects that the internal temperature is lower than the preset 20°C, the control module of the diesel circulation heater 8 controls the diesel circulation heater to start, and delivers 30°C warm water to the water storage interlayer 27 through the water pipe 9. When the water in the water storage interlayer 27 is full, the water flows out through another water pipe 9 and enters the diesel circulation heater 8 again for circulation to ensure that the water temperature in the water storage interlayer 27 is constant; when the ambient temperature of the battery reaches 28°C, the control module of the diesel circulation heater 8 receives the signal from the temperature sensor 25, controls the diesel circulation heater 8 to stop working, and completes the heating and heat preservation work;

[0060] When the heat generated by the battery during operation is greater than the heat dissipation of the shell, resulting in an abnormal increase in the battery temperature, and the temperature inside the shell reaches 55°C, the control module of the water pump 15 controls the water pump 15 to start, and the cold water in the cold water tank 10 is sent to the water storage interlayer 27 through the water pipe 9 to take away the heat of the battery, so that the temperature of the battery environment decreases. When the temperature inside the shell drops to 40°C, the control module of the water pump 15 controls the water pump 15 to stop working, completing the cooling work;

[0061] Through the cooperation of the cooling system, the diesel circulation heater 8 and the temperature sensor 25, it is ensured that the ambient temperature of the battery always fluctuates within its optimal operating temperature range, thereby ensuring the optimal working efficiency of the battery.

[0062] It should be understood that the set temperature range and the temperature of the water injected into the water storage interlayer 27 can be set according to actual environmental conditions and are not limited to the above values.

[0063] The upper cover 1, the outer shell 2 and the inner shell 3 can be made of carbon steel material, which has high strength and can provide effective protection for the energy storage battery in harsh outdoor environments. In high temperature environments such as summer, the carbon steel inner shell 3 can be replaced with a phase change material inner shell 3. Under high temperature conditions, the thermal insulation coating and the vacuum interlayer can better block the invasion of heat from the external high temperature environment. At the same time, the phase change material inner shell 3 can absorb the heat generated by the operation of the energy storage battery in time. The phase change material inner shell 3 combined with the thermal insulation coating and the vacuum interlayer can effectively suppress the rise in the temperature of the energy storage battery, ensure that the battery operates within the optimal operating temperature range, and maximize the battery's effectiveness.

[0064] While embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating and heat preservation device for energy storage batteries in cold regions, characterized in that: The invention comprises a battery box and a diesel circulation heater (8), wherein the battery box comprises a shell and an upper cover (1), wherein the shell comprises an outer shell (2) and an inner shell (3) arranged inside the outer shell (2), wherein a first vacuum interlayer (12) is arranged between the inner shell (3) and the outer shell (2), wherein the first vacuum interlayer (12) is distributed on the side wall and the bottom of the shell, wherein the side wall and the bottom plate of the inner shell (3) are provided with interconnected water storage interlayers (27), wherein the top of the inner shell (3) is provided with two water pipes (9) connected to the water storage interlayer (27), and wherein the upper cover (1) is mounted on the top of the shell, A silicone pad (11) for sealing is provided at the connection between the upper cover (1) and the shell, a second vacuum interlayer (21) is provided inside the upper cover (1), a water delivery hole (18) and a wiring hole (19) are provided on the upper cover (1), the number of the water delivery holes (18) corresponds to the number of the water delivery pipes (9), a water delivery joint is installed at each water delivery hole (18), the water delivery joint is connected to the water delivery pipe (9), the input end of the diesel circulation heating machine (8) is connected to one water delivery joint, the output end of the diesel circulation heating machine (8) is connected to another water delivery joint, and the wiring hole (19) is connected to the inner shell (3); A temperature sensor (25) is provided on the inner wall of the inner shell (3), and the temperature sensor (25) is connected to the diesel circulation heating machine (8); The inner shell (3) is connected to the outer shell (2) via an upper connecting beam (4) and a lower connecting beam (5); first clamping blocks (22) are provided on the outer sides of the tops of the two opposite side walls of the outer shell (2); first clamping grooves (26) are provided on the inner sides of the tops of the two opposite side walls of the inner shell (3); a second clamping groove (31) is provided below one side of the lower connecting beam (5); a third clamping groove (30) is provided above the other side of the lower connecting beam (5); the first clamping block (22) is arranged in the second clamping groove (31); a second clamping block (28) and a third clamping block (29) are provided at both ends of the upper connecting beam (4); the second clamping block (28) is arranged in the first clamping groove (26); and the third clamping block (29) is arranged in the third clamping groove (30).

2. The cold region energy storage battery heating and heat preservation device according to claim 1, characterized in that: It also includes a cooling system, the cooling system including a cold water tank (10) and a water pump (15), the input end of the water pump (15) being connected to the cold water tank (10); The water delivery joint is a three-way water delivery joint (6), the three channels of one three-way water delivery joint (6) are respectively connected to the corresponding water delivery hole (18), the input end of the diesel circulation heating machine (8), and the cold water tank (10), and the three channels of the other three-way water delivery joint (6) are respectively connected to the corresponding water delivery hole (18), the output end of the diesel circulation heating machine (8), and the output end of the water pump (15); The temperature sensor (25) is connected to the water pump (15).

3. A heating and heat preservation device for energy storage batteries in cold regions according to claim 1 or 2, characterized in that: The outer wall of the water pipe (9) is provided with a first external thread (14), the inner wall of the passage connecting the water pipe joint and the water pipe (9) is provided with a first internal thread, the outer wall of the water pipe (9) is sleeved with a first silicone seal ring (16), the water pipe joint is connected to the water pipe (9) through the cooperation of the first external thread (14) and the first internal thread, the first silicone seal ring (16) is located between the water pipe joint and the top of the inner shell (3), and the water pipe joint squeezes the first silicone seal ring (16).

4. The cold region energy storage battery heating and heat preservation device according to claim 1 is characterized in that: The hole diameter of the lower part of the wiring hole (19) is smaller than the hole diameter of the upper part of the wiring hole (19); a wiring bolt (7) is provided in the upper part of the wiring hole (19); a through hole is provided in the wiring bolt (7); a second external thread is provided on the outer wall of the wiring bolt (7); a second internal thread is provided on the inner wall of the upper part of the wiring hole (19); a second silicone sealing ring (17) is provided in the upper part of the wiring hole (19); the wiring bolt (7) is connected to the wiring hole (19) by the cooperation of the second external thread and the second internal thread; the second silicone sealing ring (17) is located on the wiring bolt (7) Below, the wiring bolt (7) squeezes the second silicone sealing ring (17).

5. The cold region energy storage battery heating and heat preservation device according to claim 1 is characterized in that: A first slot (32) and a second slot (33) are provided on both sides of the bottom of the upper cover (1); the tops of the two side walls of the inner shell (3) without the upper connecting beam (4) are inserted into the first slot (32); and the tops of the two side walls of the outer shell (2) without the upper connecting beam (4) are inserted into the second slot (33).

6. The cold region energy storage battery heating and heat preservation device according to claim 5, characterized in that: The silicone pad (11) is respectively arranged on the bottom of the upper cover (1), the inner wall of the first slot (32) and the inner wall of the second slot (33); the contact surface between the upper connecting beam (4) and the inner shell (3), the contact surface between the lower connecting beam (5) and the outer shell (2), and the contact surface between the upper connecting beam (4) and the lower connecting beam (5) are also provided with a silicone pad (11) for sealing.

7. The cold region energy storage battery heating and heat preservation device according to claim 1, characterized in that: The inner wall of the outer shell (2), the outer wall of the inner shell (3) and the bottom of the upper cover (1) are all provided with a thermal insulation coating (13).

8. The cold region energy storage battery heating and heat preservation device according to claim 1, characterized in that: The outer shell (2) is provided with an exhaust pipe (24) which is in communication with the first vacuum interlayer (12), and a one-way valve (23) is provided in the exhaust pipe (24).

9. The cold region energy storage battery heating and heat preservation device according to claim 1, characterized in that: The inner wall of the water storage interlayer (27) of the inner shell (3) is provided with a waterproof coating.

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