Lithium battery pack with heat dissipation effect

Abstract

The utility model belongs to the technical field of lithium battery packs, and particularly relates to a lithium battery pack with a heat dissipation effect, which comprises a box body, a limiting frame is arranged on the inner side of the box body, a loading box is arranged on the inner side of the limiting frame, and round holes are uniformly formed in the loading box. A round hole is formed in the loading box, a first circulation hole is formed in the loading box and located on the inner side of the round hole, a first heat dissipation pipe body is connected to the inner side of the round hole in an inserted mode, a second heat dissipation pipe body is integrally formed at the top of the first heat dissipation pipe body, and circulation cavities are formed in the inner sides of the first heat dissipation pipe body and the second heat dissipation pipe body; and a circulating pipe is arranged on the outer side of the first radiating pipe body. According to the lithium battery pack, the first heat dissipation pipe body and the second heat dissipation pipe body can be in large contact with the lithium battery, and when refrigerant fluid flows in the first heat dissipation pipe body and the second heat dissipation pipe body, heat on the lithium battery can be taken away, so that the heat dissipation efficiency of the lithium battery pack is greatly improved, and the heat dissipation requirement of the high-power and high-energy-density lithium battery is met.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery pack technology, specifically a lithium battery pack with heat dissipation effect. Background Technology

[0002] With the rapid development of electric vehicles, energy storage systems and portable electronic devices, lithium batteries, as their core energy components, have become the focus of industry attention in terms of performance, safety and lifespan.

[0003] Lithium battery packs generate a lot of heat during operation. If heat cannot be dissipated effectively, the battery temperature will rise, which will affect the battery performance and shorten its lifespan.

[0004] Currently, lithium battery heat dissipation technologies mainly include air cooling, liquid cooling, phase change material cooling, and thermoelectric cooling. Air cooling, as the most classic technology, is simple and inexpensive, but its heat dissipation efficiency is limited, making it difficult to meet the heat dissipation requirements of high-power, high-energy-density lithium batteries. Therefore, this paper proposes a lithium battery pack with improved heat dissipation to address the aforementioned issues. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a lithium battery pack with heat dissipation effect.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A lithium battery pack with heat dissipation effect according to this utility model includes a box, a limiting frame is provided on the inner side of the box, a loading box is provided on the inner side of the limiting frame, the loading box has evenly distributed circular holes, a first flow hole is provided on the loading box and located inside the circular holes, a first heat dissipation tube is inserted into the inner side of the circular holes, a second heat dissipation tube is integrally formed on the top of the first heat dissipation tube, a flow cavity is provided on the inner side of the first heat dissipation tube and the second heat dissipation tube, a flow pipe is provided on the outer side of the first heat dissipation tube, the flow cavity is connected to the loading box through the flow pipe, a plurality of second flow holes are provided on the loading box, and a first connector and a second connector connected to the second flow holes are provided on the loading box.

[0007] Preferably, a top seat is fixedly provided on the limiting frame and located below the loading box.

[0008] Preferably, the limiting frame has a through-hole.

[0009] Preferably, a connecting rod is snapped onto the top of the limiting frame, and a perforated plate is fixedly installed on the top of the connecting rod.

[0010] Preferably, the flow tube extends to the inside of the first flow hole.

[0011] Preferably, a storage box is fixedly installed on the outside of the box, a conveying pump is installed on the storage box, a connecting pipe is fixedly connected to the conveying pump, and the connecting pipe is connected to the first connector.

[0012] The beneficial effects of this utility model are:

[0013] This invention provides a lithium battery pack with heat dissipation effect. A limiting frame set on the inner side of the housing is used to load and limit the loading box. The loading box, set on the inner side of the limiting frame, is used to load the first heat dissipation pipe through evenly spaced circular holes. A first flow hole on the loading box, located inside the circular holes, connects the loading box and the first heat dissipation pipe, allowing the coolant to circulate inside both, thereby achieving heat dissipation of the lithium battery pack. The first heat dissipation pipe, inserted into the inner side of the circular holes, and a second heat dissipation pipe integrally formed on the top of the first heat dissipation pipe are used to load the lithium battery. In this process, the first and second heat dissipation pipes can have a large contact with the lithium battery, and when the coolant circulates inside the first and second heat dissipation pipes, it can carry away the heat from the lithium battery, thereby greatly improving the heat dissipation efficiency of the lithium battery pack and meeting the heat dissipation requirements of high-power, high-energy-density lithium batteries. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the loading box structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first heat dissipation pipe in this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the first heat dissipation pipe in this utility model;

[0020] Figure 5 This is a schematic diagram of the limiting frame in this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the first connector in this utility model.

[0022] Legend:

[0023] 1. Housing; 2. Storage box; 3. Delivery pump; 4. Connecting pipe; 5. Limiting frame; 6. Connecting rod; 7. Hollow plate; 8. Loading box; 9. Round hole; 10. First flow hole; 11. Second flow hole; 12. First heat dissipation pipe; 13. Second heat dissipation pipe; 14. Flow cavity; 15. Flow pipe; 16. Insertion hole; 17. Top seat; 18. First connector; 19. Second connector. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figures 1-6 This utility model provides a lithium battery pack with heat dissipation effect, including a housing 1, a limiting frame 5 is provided on the inner side of the housing 1, a loading box 8 is provided on the inner side of the limiting frame 5, a circular hole 9 is evenly opened on the loading box 8, a first flow hole 10 is opened on the loading box 8 and located inside the circular hole 9, a first heat dissipation pipe 12 is inserted into the inner side of the circular hole 9, a second heat dissipation pipe 13 is integrally formed on the top of the first heat dissipation pipe 12, a flow cavity 14 is provided on the inner side of the first heat dissipation pipe 12 and the second heat dissipation pipe 13, a flow tube 15 is provided on the outer side of the first heat dissipation pipe 12, the flow cavity 14 is connected to the loading box 8 through the flow tube 15, a plurality of second flow holes 11 are opened on the loading box 8, and a first connector 18 and a second connector 19 connected to the second flow holes 11 are provided on the loading box 8.

[0027] During operation, a limiting frame 5 is installed inside the housing 1 to load and limit the loading box 8. The loading box 8, located inside the limiting frame 5, uses evenly spaced circular holes 9 to load the first heat dissipation pipe 12. A first flow hole 10, located inside the circular holes 9, connects the loading box 8 and the first heat dissipation pipe 12, allowing the refrigerant to circulate within both, thus dissipating heat from the lithium battery pack. Both the refrigerant and the lithium battery pack are mature existing technologies and will not be elaborated upon further in this paper. The first heat dissipation pipe 12, inserted inside the circular holes 9, along with a second heat dissipation pipe 13 integrally formed at the top of the first heat dissipation pipe 12, is used to load the lithium battery. During this process, the first heat dissipation pipe 12 and the second heat dissipation pipe 13 can have significant contact with the lithium battery, and when the refrigerant flows between the first heat dissipation pipe 12 and the second heat dissipation pipe 13... Inside the heat pipe 13, heat from the lithium battery can be carried away, thereby greatly improving the heat dissipation efficiency of the lithium battery pack and meeting the heat dissipation requirements of high-power, high-energy-density lithium batteries. The flow cavity 14 provided inside the first heat pipe 12 and the second heat pipe 13 is used for the flow of refrigerant. The flow pipe 15 provided outside the first heat pipe 12 is used to connect the first heat pipe 12 and the loading box 8, so that the refrigerant inside the two can flow. Multiple second flow holes 11 opened on the loading box 8 are used to connect the first connector 18 and the second connector 19. The first connector 18 is used for the input of refrigerant inside the loading box 8, and the second connector 19 is used for the output of refrigerant inside the loading box 8. In addition, after the first heat pipe 12 is installed inside the round hole 9, sealant is filled between the two to prevent leakage. The sealant is a mature existing technology and will not be described in detail in this article.

[0028] Furthermore, such as Figure 5 As shown, a top seat 17 is fixedly installed on the limiting frame 5 and below the loading box 8;

[0029] During operation, the top seat 17, which is fixedly installed on the limit frame 5 and located below the loading box 8, is used to support the loading box 8 so that it can be loaded inside the limit frame 5.

[0030] Furthermore, such as Figure 5 As shown, the limiting frame 5 has a through-hole 16;

[0031] During operation, the insertion hole 16 through the limit frame 5 is used to limit the limit frame 5 inside the housing 1 to ensure the stability of the lithium battery pack.

[0032] Furthermore, such as Figure 5 As shown, a connecting rod 6 is snapped onto the top of the limiting frame 5, and a perforated plate 7 is fixedly installed on the top of the connecting rod 6;

[0033] During operation, the connecting rod 6, which is snapped onto the top of the limiting frame 5, is used to load the hollow plate 7. When the multi-layer loading box 8 and the limiting frame 5 are stacked, the hollow plate 7, which is fixedly installed on the top of the connecting rod 6, can support the lithium battery.

[0034] Furthermore, such as Figure 2-3 As shown, the flow tube 15 extends to the inside of the first flow hole 10;

[0035] During operation, since the flow pipe 15 extends to the inside of the first flow hole 10, the refrigerant flows into the first heat dissipation pipe body 12 after flowing into the loading box 8, through the first flow hole 10 and the flow pipe 15.

[0036] Furthermore, such as Figure 1 As shown, a storage box 2 is fixedly installed on the outside of the box 1, a conveying pump 3 is installed on the storage box 2, a connecting pipe 4 is fixedly connected to the conveying pump 3, and the connecting pipe 4 is connected to the first connector 18.

[0037] During operation, the storage box 2, which is fixedly installed on the outside of the housing 1, is used to store the refrigerant. The delivery pump 3 installed on the storage box 2 is used to pump out the refrigerant inside the storage box 2. The connecting pipe 4 fixedly connected to the delivery pump 3 is used for the circulation of the refrigerant, thereby realizing the refrigerant flow inside the loading box 8 and the circulation cavity 14 to dissipate heat from the lithium battery.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A lithium battery pack with heat dissipation effect, comprising a housing (1), characterized in that: The inner side of the housing (1) is provided with a limiting frame (5), and the inner side of the limiting frame (5) is provided with a loading box (8). The loading box (8) is provided with evenly spaced round holes (9). The loading box (8) is provided with a first flow hole (10) located inside the round hole (9). A first heat dissipation pipe (12) is inserted into the inner side of the round hole (9). A second heat dissipation pipe (13) is integrally formed on the top of the first heat dissipation pipe (12). The inner sides of the first heat dissipation pipe (12) and the second heat dissipation pipe (13) are provided with a flow cavity (14). The outer side of the first heat dissipation pipe (12) is provided with a flow pipe (15). The flow cavity (14) is connected to the loading box (8) through the flow pipe (15). The loading box (8) is provided with a plurality of second flow holes (11). The loading box (8) is provided with a first connector (18) and a second connector (19) connected to the second flow holes (11).

2. A lithium battery pack with heat dissipation effect according to claim 1, characterized in that: A top seat (17) is fixedly provided on the limiting frame (5) and below the loading box (8).

3. A lithium battery pack with heat dissipation effect according to claim 1, characterized in that: The limiting frame (5) has a through-hole (16).

4. A lithium battery pack with heat dissipation effect according to claim 1, characterized in that: The top of the limiting frame (5) is snapped with a connecting rod (6), and a perforated plate (7) is fixedly installed on the top of the connecting rod (6).

5. A lithium battery pack with heat dissipation effect according to claim 1, characterized in that: The flow tube (15) extends to the inside of the first flow hole (10).

6. A lithium battery pack with heat dissipation effect according to claim 1, characterized in that: A storage box (2) is fixedly installed on the outside of the box (1). A conveying pump (3) is installed on the storage box (2). A connecting pipe (4) is fixedly connected to the conveying pump (3). The connecting pipe (4) is connected to the first connector (18).

Images