Battery pack cooling liquid circulating device

Abstract

The utility model particularly relates to the technical field of batteries, and discloses a battery pack cooling liquid circulating device which comprises an outer shell, a first notch is formed in the middle of the outer shell, an inner shell is clamped in the first notch, a second notch is formed in the middle of the inner shell, and a bottom support is fixedly arranged at the inner bottom of the first notch and used for supporting the inner shell. A condensation pipe is inserted into the inner side wall, close to the bottom support, of the first notch, a water inlet is inserted into the side wall of the outer shell, and the water inlet penetrates through the side wall of the outer shell to be communicated with one end of the condensation pipe. According to the condenser, the outer shell and the inner shell are arranged, the inner size of the inner shell is matched with the outer size of the first notch, the connecting stability of the outer shell and the inner shell is improved, the bottom support is fixedly connected with the outer shell in the shape like the Chinese character'hui 'to form an integrated structure to support the inner shell, and therefore the condenser pipe and the second notch are isolated; therefore, the direct contact of the condenser pipes is avoided, and the safety of the battery pack mounted in the notch II is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to a battery pack coolant circulation device. Background Art

[0002] The battery pack is a device that wraps around the battery to protect it from damage. Because the battery pack heats up during operation, a condenser is installed inside the pack to cool the internal temperature and ensure stable operation.

[0003] Existing battery pack coolant circulation devices usually include an outer shell, partitions and condensers. The partitions are used to divide the internal space of the outer shell, thereby facilitating the isolation of the battery pack. The condensers are evenly arranged on the inner wall of the outer shell. The condensers are connected to the heat exchanger and water pump through pipes in turn to form a loop, thereby facilitating the circulation of coolant and achieving cooling of the battery pack.

[0004] During use, the existing battery pack coolant circulation device may cause coolant leakage when the battery pack is damaged by collision. When the leaked coolant comes into contact with the battery pack, it may damage the battery and even cause the risk of leakage. Utility Model Content

[0005] The utility model provides a battery pack coolant circulation device, which aims to solve the problem that during use, the battery pack may be damaged by collision, which may cause coolant leakage. When the leaked coolant comes into contact with the battery pack, it may damage the battery and even cause leakage risk.

[0006] The present utility model is implemented as follows: a battery pack coolant circulation device includes an outer shell, a slot one is provided in the middle of the outer shell, an inner shell is clamped inside the slot one, a slot two is provided in the middle of the inner shell, a bottom bracket is fixed to the inner bottom of the slot one for supporting the inner shell, a condenser is inserted into the inner side wall of the slot one close to the bottom bracket, a water inlet is inserted into the side wall of the outer shell, the water inlet passes through the side wall of the outer shell and is connected to one end of the condenser, a water outlet pipe is inserted into the side wall of the outer shell away from the mounting ear one, and the water outlet pipe is connected to the other end of the condenser.

[0007] Preferably, the outer shell and the inner shell are both made of aluminum alloy, and two mounting ears are symmetrically fixed on the side wall of the outer shell. The surfaces of the two mounting ears are each provided with a plurality of threaded grooves, thereby improving the convenience of installing the outer shell.

[0008] Preferably, mounting ears 2 are fixedly provided at the four corner positions of the top end of the outer shell, the four mounting ears 2 are symmetrically distributed, and threaded holes are provided on the surfaces of the mounting ears 2.

[0009] Preferably, a cover plate is installed at the top of the outer shell, and three mounting ears are fixed at the four corners of the cover plate. The three mounting ears are sequentially matched with the two mounting ears, thereby improving the sealing performance of the top of the outer shell.

[0010] Preferably, a plurality of holes are formed at equal intervals on the inner bottom of the slot 1, and the holes all penetrate the bottom surface of the outer shell to facilitate liquid seepage.

[0011] Preferably, a card slot is provided on the side wall of the inner shell, and protective cotton is clamped inside the card slot. The protective cotton is made of polyimide fiber and is in a round shape, which can reduce the range of liquid seepage.

[0012] Preferably, a partition is fixedly provided on the inner side wall of the second notch, and the partition is cross-shaped and fixedly connected to the inner shell to form an integral structure.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] First, by providing an outer shell and an inner shell, the internal dimensions of the inner shell are adapted to the external dimensions of the slot one, thereby improving the stability of the connection between the outer shell and the inner shell. The bottom support is in a circular shape and fixedly connected to the outer shell to form an integrated structure for supporting the inner shell, thereby isolating the condenser and the slot two, thereby avoiding direct contact between the condenser and the slot two, thereby improving the safety of the battery pack installed inside the slot two; secondly, by providing a card slot and protective cotton, the internal dimensions of the card slot are adapted to the external dimensions of the protective cotton, thereby improving the stability of the installation of the protective cotton. The protective cotton is loose and porous, which is convenient for absorbing leakage liquid, further improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view installation structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top plan structure of the outer shell of the utility model;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the inner shell of the utility model;

[0019] Figure 5 It is a side view three-dimensional structural schematic diagram of the utility model.

[0020] The figures are marked as follows: 1. outer shell; 2. notch one; 3. inner shell; 4. notch two; 5. partition; 6. water inlet; 7. mounting ear one; 8. bottom bracket; 9. condenser; 10. water outlet pipe; 11. hole groove; 12. mounting ear two; 13. card slot; 14. protective cotton; 15. cover plate; 16. mounting ear three. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0022] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] See also Figure 1-Figure 5, the embodiment provided by the present utility model: a battery pack coolant circulation device, comprising an outer shell 1, a notch 2 is provided in the middle of the outer shell 1, an inner shell 3 is clamped inside the notch 2, the outer shell 1 and the inner shell 3 are both made of aluminum alloy, two mounting ears 7 are symmetrically fixed on the side wall of the outer shell 1, and a plurality of threaded grooves are provided on the surface of the two mounting ears 7, which improve the convenience of installation of the outer shell 1, a notch 2 4 is provided in the middle of the inner shell 3 for the battery pack to be clamped, a partition 5 is fixed on the inner side wall of the notch 2 4 by welding, the partition 5 is cross-shaped and fixedly connected to the inner shell 3 to form an integrated structure, thereby realizing the division of the notch 2 4, avoiding direct contact and collision of the battery pack, and improving the safety of the battery pack, a bottom bracket 8 is fixed on the inner bottom of the notch 2, and the bottom bracket 8 is in a circular shape and fixedly connected to the outer shell 1 to form an integrated structure for supporting The inner shell 3 and the slot 2 are connected to a condenser 9 on the inner wall near the bottom bracket 8. The condenser 9 is made of stainless steel and is distributed in an S shape. The side wall of the outer shell 1 is connected to a water inlet 6. The water inlet 6 passes through the side wall of the outer shell 1 and is connected to one end of the condenser 9 to facilitate the entry of the coolant into the condenser 9. The side wall of the outer shell 1 away from the mounting ear 7 is connected to a water outlet pipe 10. The water outlet pipe 10 is connected to the other end of the condenser 9 to facilitate the outflow of the coolant. The internal dimensions of the inner shell 3 are adapted to the external dimensions of the slot 2. The inner shell 3 is supported by the bottom bracket 8, which improves the stability of the connection between the outer shell 1 and the inner shell 3, and realizes the isolation of the condenser 9 and the slot 2 4. This can prevent the condenser 9 from directly contacting the battery pack installed inside the slot 2 4. When the condenser 9 leaks, it can avoid directly entering the interior of the slot 2 4, thereby improving the safety of the battery pack during use.

[0024] The four corner positions of the top of the outer shell 1 are all fixed with mounting ears 12, and the four mounting ears 12 are symmetrically distributed. The surfaces of the mounting ears 12 are all provided with threaded holes. The top of the outer shell 1 is installed with a cover plate 15, and the four corner positions of the cover plate 15 are all fixed with mounting ears 16. The mounting ears 16 are adapted to the mounting ears 12 in sequence, thereby improving the sealing performance of the top of the outer shell 1.

[0025] The inner bottom of the slot 2 is provided with a plurality of holes 11 at equal intervals. The holes 11 all penetrate the bottom surface of the outer shell 1 to facilitate the seepage of the leaked liquid.

[0026] A card slot 13 is provided on the side wall of the inner shell 3, and a protective cotton 14 is connected to the inside of the card slot 13. The protective cotton 14 is made of polyimide fiber and is in the shape of a U.S. dollar. The internal size of the card slot 13 is adapted to the external size of the protective cotton 14. The protective cotton 14 can increase the friction resistance between the inner shell 3 and the outer shell 1, thereby improving the installation stability of the inner shell 3. The protective cotton 14 is loose and porous, which is convenient for absorbing leakage liquid, thereby reducing the range of liquid seepage and further improving the safety of using the battery pack.

[0027] Working principle: When using this battery pack coolant circulation device, the operator first clamps the inner shell 3 into the inside of the slot 1 2 and then clamps the battery pack into the inside of the slot 2 4 in turn. The partition 5 is in a cross shape to separate the slot 2 4 to avoid direct contact and collision of the battery pack. Then the water inlet 6 and the water outlet pipe 10 are connected to the water pump and the plate heat exchanger through the pipeline to form a loop. The water pump can be started to transport the coolant to the plate heat exchanger for heat dissipation. The low-temperature coolant after heat dissipation then enters the inside of the condenser 9 through the water inlet 6, and the inside of the slot 2 is cooled by heat conduction. The coolant is then discharged from the The water flows out of the outlet pipe 10 to facilitate entering the next cycle, thereby completing the cooling and ensuring the normal operation of the battery pack. The battery pack, water pump and plate exchanger are all existing technologies and will not be repeated here. The bottom bracket 8 is in a circular shape and is fixedly connected to the outer shell 1 to form an integrated structure for supporting the inner shell 3. The internal dimensions of the inner shell 3 are compatible with the external dimensions of the slot 1 2, which improves the stability of the connection between the outer shell 1 and the inner shell 3, thereby isolating the condenser 9 and the slot 2 4, thereby avoiding the condenser 9 from directly contacting the battery pack installed inside the slot 2 4, thereby improving the safety of the battery pack during use.

[0028] The internal dimensions of the card slot 13 are adapted to the external dimensions of the protective cotton 14, which improves the stability of the installation of the protective cotton 14. The protective cotton 14 is made of polyimide fiber and is loose and porous, which can easily absorb leaked liquid, reduce the range of liquid seepage, and further improve the safety of use.

[0029] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0030] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0031] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A battery pack coolant circulation device, characterized in that: The utility model comprises an outer shell (1): a slot 1 (2) is provided in the middle of the outer shell (1), an inner shell (3) is clamped inside the slot 1 (2), a slot 2 (4) is provided in the middle of the inner shell (3), a bottom bracket (8) is fixed on the inner bottom of the slot 1 (2) for supporting the inner shell (3), a condenser (9) is plugged into the inner side wall of the slot 1 (2) close to the bottom bracket (8), a water inlet (6) is plugged into the side wall of the outer shell (1), the water inlet (6) passes through the side wall of the outer shell (1) and is connected to one end of the condenser (9), a water outlet pipe (10) is plugged into the side wall of the outer shell (1) away from the mounting ear 1 (7), and the water outlet pipe (10) is connected to the other end of the condenser pipe (9).

2. The battery pack coolant circulation device according to claim 1, characterized in that: The outer shell (1) and the inner shell (3) are both made of aluminum alloy. Two mounting ears (7) are symmetrically fixed to the side wall of the outer shell (1), and the surfaces of the two mounting ears (7) are each provided with a plurality of threaded grooves.

3. The battery pack coolant circulation device according to claim 2, characterized in that: Mounting ears 2 (12) are fixedly provided at the four corner positions of the top of the outer shell (1), and the four mounting ears 2 (12) are symmetrically distributed. Threaded holes are provided on the surfaces of the mounting ears 2 (12).

4. The battery pack coolant circulation device according to claim 3, characterized in that: A cover plate (15) is installed at the top end of the outer shell (1), and mounting ears (16) are fixed at the four corner positions of the cover plate (15), and the mounting ears (16) are adapted to the mounting ears (12) in sequence.

5. The battery pack coolant circulation device according to claim 1, characterized in that: The inner bottom of the slot opening (2) is provided with a plurality of holes (11) at equal intervals, and the holes (11) all pass through the bottom surface of the outer shell (1).

6. The battery pack coolant circulation device according to claim 1, characterized in that: A slot (13) is provided on the side wall of the inner shell (3), and a protective cotton (14) is clamped inside the slot (13). The protective cotton (14) is made of polyimide fiber and is in the shape of a Chinese character "Yu".

7. The battery pack coolant circulation device according to claim 1, characterized in that: A partition plate (5) is fixedly provided on the inner side wall of the second notch (4); the partition plate (5) is cross-shaped and is fixedly connected to the inner shell (3) to form an integral structure.

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