Thermal insulation device for lithium battery pack

Abstract

The heat preservation device for the lithium battery pack comprises a box body and a top cover, a placing bin, a circulating bin and a heat insulation bin are sequentially arranged in the box body from inside to outside, circulating liquid is contained in the circulating bin, the right side of the box body is fixedly connected with a heating shell, and the top cover is fixedly connected with the heating shell. A first circulating pipe extending into the circulating bin is fixedly connected to the interior of the heating shell, a circulating pump communicating with the first circulating pipe is arranged in the heating shell, and a heating assembly communicating with the circulating pump and the circulating bin is arranged in the heating shell; and the front face of the box body is fixedly connected with two injection pipes communicating with the same thermal insulation bin, a battery pack is arranged in the containing bin, and the front face of the box body is provided with a control panel electrically connected with the battery pack and the heating assembly. The lithium battery has the advantages of high battery protectiveness and the like, and solves the problem that the working performance and the service life of the lithium battery can be influenced when the lithium battery is used in a low-temperature environment.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and specifically relates to a heat preservation device for a lithium battery energy storage battery pack. Background Art

[0002] Lithium batteries are a type of battery with lithium metal or lithium alloy as the positive / negative electrode material and using a non-aqueous electrolyte solution. Lithium-ion batteries do not contain metallic lithium and are rechargeable. Due to their many advantages such as relatively high energy, long service life, high rated voltage, and high power tolerance, lithium batteries have been widely used.

[0003] However, the use of lithium batteries in a low-temperature environment will affect their working performance and service life. Currently, there is no publicly disclosed structure specifically for protecting lithium batteries in a low-temperature environment, which cannot meet the usage requirements in such an environment. Therefore, a heat preservation device for a lithium battery energy storage battery pack is proposed to solve the above problems. Content of the Utility Model

[0004] Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a heat preservation device for a lithium battery energy storage battery pack, which has the advantages of high battery protection, and solves the problem that the use of lithium batteries in a low-temperature environment will affect their working performance and service life.

[0006] (II) Technical Solution

[0007] The technical solution for the utility model to solve the above technical problems is as follows: A heat preservation device for a lithium battery energy storage battery pack includes a box body and a top cover. Inside the box body, a placement bin, a circulation bin, and a heat insulation bin are sequentially arranged from inside to outside. A circulation liquid is provided in the circulation bin. One side of the box body is fixedly connected with a heating shell. Inside the heating shell, a first circulation pipe extending into the circulation bin is fixedly connected. Inside the heating shell, a circulation pump communicated with the first circulation pipe is provided. Inside the heating shell, a heating component respectively communicated with the circulation pump and the circulation bin is provided. On the front of the box body, two injection pipes communicated with the same heat insulation bin are fixedly connected. Inside the placement bin, a battery pack is provided. On the front of the box body, a control panel electrically connected to the battery pack and the heating component is provided. On the outer surface of the box body, a fixed disk is fixedly connected. On the outer surface of the top cover, a connection disk adapted to the fixed disk is fixedly connected. At the bottom of the top cover, an insertion block is fixedly connected. Inside the insertion block, a pressing component extending below it and adapted to the battery pack is provided.

[0008] The beneficial effects of the utility model are:

[0009] During the use of the heat preservation device for the lithium battery pack, firstly, the heat insulation medium is injected into the heat insulation bin through the injection pipe. When the pressing component detects that the temperature of the battery pack is too low, the circulating liquid in the circulating bin can be sucked into the heating component through the circulating pump from the inside of the first circulating pipe. Then, the heating component can heat the circulating liquid and discharge it into the circulating bin to heat the inside of the placement bin until the temperature of the battery pack detected by the pressing component reaches an appropriate temperature. At this time, the heating component can be controlled to stop through the control panel, which has the advantage of being able to keep the battery warm.

[0010] On the basis of the above technical solution, the present utility model can be further improved as follows.

[0011] Further, the heating component includes a heating water tank, a second circulating pipe and an electric heating pipe. The heating water tank communicated with the circulating pump is fixedly connected inside the heating shell. One side of the heating water tank is fixedly connected with a second circulating pipe extending into the circulating bin, and an electric heating pipe electrically connected to the control panel is arranged inside the heating water tank.

[0012] The beneficial effect of adopting the above further solution is that the circulating liquid in the circulating bin is sucked into the heating water tank through the circulating pump, and then the circulating liquid can be heated by the electric heating pipe, and then the circulating liquid in the heating water tank is input into the circulating bin through the second circulating pipe.

[0013] Further, a lifting handle is fixedly connected to the top of the top cover.

[0014] The beneficial effect of adopting the above further solution is that the top cover can be conveniently removed through the lifting handle, which is convenient for the overall operation of the device.

[0015] Further, a sealing ring adapted to the placement bin is fixedly connected to the outer surface of the insertion block.

[0016] The beneficial effect of adopting the above further solution is that the sealing ring fits tightly with the placement bin, which can enhance the sealing performance inside the box body.

[0017] Further, the pressing component includes a pressing spring, a pressing block and a temperature sensor. Pressing springs distributed in a rectangular array are fixedly connected inside the insertion block. The bottom of the pressing springs is fixedly connected to the same pressing block adapted to the battery pack, and a temperature sensor electrically connected to the control panel is arranged at the bottom of the pressing block.

[0018] The beneficial effect of adopting the above further solution is that the temperature of the battery pack can be detected in real time through the temperature sensor. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the present utility model;

[0020] Figure 2 This is the top-down sectional view of the structure of the present utility model;

[0021] Figure 3 This is the sectional view of the pressing component of the present utility model;

[0022] Figure 4 This is the bottom view of the pressing component of the present utility model.

[0023] In the figure: 1. Box body; 101. Heat insulation chamber; 102. Circulation chamber; 103. Placement chamber; 2. Top cover; 3. Heating shell; 4. First circulation pipe; 5. Circulation pump; 6. Heating component; 61. Heating water tank; 62. Second circulation pipe; 63. Electric heating pipe; 7. Injection pipe; 8. Battery pack; 9. Control panel; 10. Fixed plate; 11. Connection plate; 12. Insertion block; 122. Sealing ring; 13. Pressing component; 131. Pressing spring; 132. Pressing block; 133. Temperature sensor; 14. Pulling handle. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] In the embodiment, as Figures 1-4 shown, a heat preservation device for a lithium battery pack, the present utility model includes a box body 1 and a top cover 2. Inside the box body 1, a placement chamber 103, a circulation chamber 102, and a heat insulation chamber 101 are sequentially arranged from inside to outside. A circulating liquid is provided in the circulation chamber 102. The right side of the box body 1 is fixedly connected with a heating shell 3. Inside the heating shell 3, a first circulation pipe 4 extending into the circulation chamber 102 is fixedly connected. Inside the heating shell 3, a circulation pump 5 communicated with the first circulation pipe 4 is provided. Inside the heating shell 3, a heating component 6 communicated with the circulation pump 5 and the circulation chamber 102 respectively is provided. The front of the box body 1 is fixedly connected with two injection pipes 7 communicated with the same heat insulation chamber 101. Inside the placement chamber 103, a battery pack 8 is provided. The front of the box body 1 is provided with a control panel 9 electrically connected to the battery pack 8 and the heating component 6. The outer surface of the box body 1 is fixedly connected with a fixed plate 10. The outer surface of the top cover 2 is fixedly connected with a connection plate 11 adapted to the fixed plate 10. The bottom of the top cover 2 is fixedly connected with an insertion block 12. Inside the insertion block 12, a pressing component 13 extending below it and adapted to the battery pack 8 is provided;

[0026] The heating component 6 includes a heating water tank 61, a second circulation pipe 62, and an electric heating pipe 63. The heating water tank 61 connected to the circulation pump 5 is fixedly connected inside the heating housing 3. The second circulation pipe 62 extending into the inside of the circulation chamber 102 is fixedly connected to the left side of the heating water tank 61. An electric heating pipe 63 electrically connected to the control panel 9 is provided inside the heating water tank 61;

[0027] By means of the circulation pump 5, the circulating liquid inside the circulation chamber 102 is sucked into the heating water tank 61. Then, the circulating liquid can be heated by the electric heating pipe 63, and then the circulating liquid inside the heating water tank 61 is input into the circulation chamber 102 through the second circulation pipe 62;

[0028] A lifting handle 14 is fixedly connected to the top of the top cover 2;

[0029] The top cover 2 can be conveniently removed through the lifting handle 14, and it is convenient for the overall operation of the device;

[0030] A sealing ring 122 adapted to the placement bin 103 is fixedly connected to the outer surface of the insertion block 12;

[0031] The sealing ring 122 is in close fit with the placement bin 103, which can enhance the sealing performance inside the box body 1;

[0032] The pressing component 13 includes a pressing spring 131, a pressing block 132, and a temperature sensor 133. Pressing springs 131 distributed in a rectangular array are fixedly connected inside the insertion block 12. The bottom of the pressing springs 131 is fixedly connected to the same pressing block 132 adapted to the battery pack 8. A temperature sensor 133 electrically connected to the control panel 9 is provided at the bottom of the pressing block 132;

[0033] The temperature of the battery pack 8 can be detected in real time through the temperature sensor 133.

[0034] Working principle:

[0035] First step: First, an insulating medium is injected into the insulating chamber 101 through the injection pipe 7;

[0036] Second step: When the temperature sensor 133 detects that the temperature of the battery pack 8 is too low, the circulating liquid inside the circulation chamber 102 can be sucked into the heating water tank 61 from the first circulation pipe 4 through the circulation pump 5;

[0037] Third step: Finally, the circulating liquid is heated by the electric heating pipe 63 and then discharged into the circulation chamber 102 through the second circulation pipe 62 to heat the inside of the placement bin 103 until the temperature of the battery pack 8 detected by the temperature sensor 133 reaches an appropriate temperature, and then the electric heating pipe 63 can be controlled to stop through the control panel 9.

[0038] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulation device for a lithium battery pack, comprising a box body (1) and a top cover (2), characterized in that: Inside the box body (1), a placement bin (103), a circulation bin (102), and a heat insulation bin (101) are successively arranged from inside to outside. A circulating liquid is provided in the circulation bin (102). One side of the box body (1) is fixedly connected to a heating shell (3). Inside the heating shell (3), a first circulation pipe (4) extending into the circulation bin (102) is fixedly connected. Inside the heating shell (3), a circulation pump (5) communicated with the first circulation pipe (4) is provided. Inside the heating shell (3), a heating component (6) respectively communicated with the circulation pump (5) and the circulation bin (102) is provided. On the front of the box body (1), two injection pipes (7) communicated with the same heat insulation bin (101) are fixedly connected. Inside the placement bin (103), a battery pack (8) is provided. On the front of the box body (1), a control panel (9) electrically connected to the battery pack (8) and the heating component (6) is provided. On the outer surface of the box body (1), a fixed disk (10) is fixedly connected. On the outer surface of the top cover (2), a connection disk (11) adapted to the fixed disk (10) is fixedly connected. At the bottom of the top cover (2), an insertion block (12) is fixedly connected. Inside the insertion block (12), a pressing component (13) extending below it and adapted to the battery pack (8) is provided.

2. The thermal insulation device for a lithium battery pack according to claim 1, wherein: The heating component (6) includes a heating water tank (61), a second circulation pipe (62), and an electric heating pipe (63). Inside the heating shell (3), a heating water tank (61) communicated with the circulation pump (5) is fixedly connected. On one side of the heating water tank (61), a second circulation pipe (62) extending into the circulation bin (102) is fixedly connected. Inside the heating water tank (61), an electric heating pipe (63) electrically connected to the control panel (9) is provided.

3. The thermal insulation device for a lithium battery pack according to claim 1, characterized in that: At the top of the top cover (2), a lifting handle (14) is fixedly connected.

4. A thermal insulation device for a lithium battery pack according to claim 1, characterized in that: On the outer surface of the insertion block (12), a sealing ring (122) adapted to the placement bin (103) is fixedly connected.

5. The thermal insulation device for a lithium battery pack according to claim 1, wherein: The pressing component (13) includes a pressing spring (131), a pressing block (132), and a temperature sensor (133). Inside the insertion block (12), pressing springs (131) distributed in a rectangular array are fixedly connected. At the bottom of the pressing springs (131), a same pressing block (132) adapted to the battery pack (8) is fixedly connected. At the bottom of the pressing block (132), a temperature sensor (133) electrically connected to the control panel (9) is provided.

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