Cooling device of battery and battery

Abstract

The utility model provides a battery cooling device and a battery, and the battery cooling device comprises a cooling liquid pipe which is arranged on a battery cell module and is provided with a liquid inlet and a liquid outlet; the liquid storage tank is arranged on one side of the battery cell module, and the liquid inlet and the liquid outlet are communicated through the liquid storage tank; the liquid conveying pump is arranged on the liquid storage tank or the cooling liquid pipe; and the refrigerating part is arranged on the liquid storage tank. According to the technical scheme, the problem that the heat dissipation effect of the battery in the related technology is poor is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cooling, in particular to a battery cooling device and a battery. Background Art

[0002] With the popularity of wireless charging technology and the rise of magnetic charging treasures, while providing convenience for life, it also seriously affects the heat dissipation effect of mobile phones and batteries. In addition, when the battery is used for a long time or under high load conditions, the high temperature may cause the battery performance to decline, shorten its lifespan, and even cause safety hazards.

[0003] The heat generated by the battery in the related art during use is dissipated through passive heat dissipation (the air around the battery takes away the heat emitted by the battery), and the heat dissipation effect is poor and cannot meet the increasingly high heat dissipation requirements. In addition, excessively high temperatures will have an adverse effect on the performance and life of the battery. Utility Model Content

[0004] The main purpose of the utility model is to provide a battery cooling device and a battery, so as to solve the problem of poor heat dissipation effect of the battery in the related art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a battery cooling device is provided, including: a cooling liquid pipe, which is arranged on the battery cell module, and the cooling liquid pipe has a liquid inlet and a liquid outlet; a liquid storage tank, which is arranged on one side of the battery cell module, and the liquid storage tank connects the liquid inlet and the liquid outlet; an infusion pump, which is arranged on the liquid storage tank or the cooling liquid pipe; and a refrigeration component, which is arranged on the liquid storage tank.

[0006] Furthermore, the coolant pipe is bonded to the battery cell module, the coolant pipe is a flexible pipe, and the contact surface between the coolant pipe and the battery cell module is a plane.

[0007] Furthermore, the battery cooling device also includes a temperature detection component arranged on the battery cell module and a control component connected to the temperature detection component signal, and the control component is connected to the infusion pump control.

[0008] Furthermore, the battery cell module is rectangular, and the coolant pipe includes a first pipe segment, a second pipe segment, a third pipe segment and a fourth pipe segment which are connected in sequence. The first pipe segment connects the liquid inlet and the liquid outlet, and the first pipe segment, the second pipe segment, the third pipe segment and the fourth pipe segment form a rectangle.

[0009] Furthermore, the coolant pipe includes a liquid inlet section and a liquid outlet section arranged at intervals, and the coolant pipe also includes a return section connected to the liquid inlet section and the liquid outlet section, the inlet of the liquid inlet section is the liquid inlet, and the outlet of the liquid outlet section is the liquid outlet; the return section includes a plurality of connection groups arranged in sequence, and each connection group includes a first connection section and a second connection section arranged at an angle and in communication.

[0010] Further, in the length direction of the battery cell module, the distance between the liquid storage tank and the end surface of the first end of the battery cell module is smaller than the distance between the liquid storage tank and the end surface of the second end of the battery cell module.

[0011] Furthermore, there are multiple refrigeration components, and the liquid storage tank is a rectangular box with multiple outer walls. One outer wall of the rectangle is attached to the outer wall of the battery cell module, and the number of the remaining outer walls is the same as the number of the multiple refrigeration components. The multiple refrigeration components are arranged on the remaining outer walls one by one.

[0012] According to another aspect of the utility model, a battery is provided, including a cell module and a protective plate arranged on the cell module. The battery also includes the above-mentioned cooling device, and the cooling device is arranged on the cell module.

[0013] Furthermore, there are two guard plates, which are respectively arranged on both sides of the battery cell module, there are two coolant pipes, which are arranged on the two guard plates in a one-to-one correspondence, and there is one liquid storage tank, which is connected to the liquid storage tank.

[0014] Furthermore, the battery also includes a support frame, which is arranged around the outer side of the battery cell module, and the guard plate is fixedly connected to the support frame.

[0015] The technical scheme of the utility model is applied, and the cooling device of the battery includes: a cooling liquid pipe, a liquid storage tank, an infusion pump and a refrigeration component. The cooling liquid pipe is arranged on the battery module. The cooling liquid pipe has a liquid inlet and a liquid outlet. The liquid storage tank is arranged on one side of the battery module, and the liquid storage tank connects the liquid inlet and the liquid outlet. In this way, the cooling liquid in the liquid storage tank can flow into the cooling liquid pipe, and the cooling liquid in the cooling liquid pipe absorbs the heat generated by the battery module to improve the heat dissipation effect of the battery. The infusion pump is arranged on the liquid storage tank or the cooling liquid pipe, and the infusion pump can transport the cooling liquid in the liquid storage tank from the liquid outlet to the liquid inlet, which is convenient for the cooling liquid to flow in the cooling liquid pipe, and improves the flow rate of the cooling liquid in the cooling liquid pipe, and further facilitates the cooling liquid to absorb and dissipate the heat generated by the battery module. The refrigeration component is arranged on the liquid storage tank, and the arrangement of the refrigeration component can cool down the cooling liquid in the liquid storage tank, so that the cooling liquid in the cooling liquid pipe can cool down more quickly, so that the cooling liquid can better and faster absorb the heat generated by the battery module, and further improve the heat dissipation effect of the battery. Therefore, the technical solution of the present application effectively solves the problem of poor heat dissipation of the battery in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a battery according to an embodiment of the utility model is shown;

[0018] Figure 2 Shows Figure 1 A partial enlarged view of the battery's liquid storage tank;

[0019] Figure 3 Shows Figure 1 A schematic front view of a battery coolant pipe including a return section.

[0020] The above drawings include the following reference numerals:

[0021] 10. Coolant pipe; 11. First pipe section; 12. Second pipe section; 13. Third pipe section; 14. Fourth pipe section; 15. Liquid inlet section; 16. Liquid outlet section; 17. First connecting section; 18. Second connecting section;

[0022] 20. Liquid storage tank;

[0023] 40. Refrigeration parts;

[0024] 50. Guard plate;

[0025] 60. Support frame. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0029] like Figure 1 and Figure 2 As shown, applying the technical solution of this embodiment, the cooling device of the battery includes: a coolant pipe 10, a liquid storage tank 20, an infusion pump and a refrigeration component 40. The coolant pipe 10 is arranged on the battery module. The coolant pipe 10 has a liquid inlet and a liquid outlet. The liquid storage tank 20 is arranged on one side of the battery module, and the liquid storage tank 20 connects the liquid inlet and the liquid outlet. The infusion pump is arranged in the liquid storage tank 20 or on the coolant pipe 10. The refrigeration component 40 is arranged on the liquid storage tank 20.

[0030] In this way, the coolant in the liquid storage tank 20 can flow into the coolant pipe 10, and the coolant in the coolant pipe 10 absorbs the heat generated by the battery module to improve the heat dissipation effect of the battery. The infusion pump is arranged in the liquid storage tank 20, and the infusion pump can transport the coolant in the liquid storage tank 20 from the liquid outlet to the liquid inlet, which is convenient for the flow of the coolant in the coolant pipe 10, and improves the flow rate of the coolant in the coolant pipe 10, and further facilitates the coolant to absorb and dissipate the heat generated by the battery module. The refrigeration component 40 is arranged on the outer wall of the liquid storage tank 20, and the setting of the refrigeration component 40 can cool down the coolant in the liquid storage tank 20, so that the coolant in the coolant pipe 10 can cool down more quickly, so that the coolant can better and faster absorb the heat generated by the battery module, and further improve the heat dissipation effect of the battery. Therefore, the technical solution of this embodiment effectively solves the problem of poor heat dissipation effect of the battery in the related art.

[0031] In this embodiment, the coolant is preferably water, refrigerant or liquid metal. The coolant pipe 10 is disposed on the protective plate 50 on the battery module, the infusion pump is disposed in the liquid storage tank 20 , and the refrigeration element 40 is disposed on the outer wall of the liquid storage tank 20 .

[0032] like Figure 1 and Figure 2As shown, the coolant pipe 10 is bonded to the battery module, making it more convenient and quick to fix the coolant pipe 10 to the battery module. The coolant pipe 10 is a flexible pipe, which is convenient for processing the coolant pipe 10. The contact surface between the coolant pipe 10 and the battery module is a plane, making the connection between the coolant pipe 10 and the battery module more reliable. In this embodiment, when the flexible pipe is bonded to the battery module, the operator applies force to the flexible pipe to deform the flexible pipe so that the contact surface between the flexible pipe and the battery module forms a plane.

[0033] like Figure 1 and Figure 2 As shown, the battery cooling device also includes a temperature detection component arranged on the battery module and a control component connected to the temperature detection component signal, and the control component is connected to the infusion pump control. The temperature detection component can detect the temperature of the battery module. When the temperature detection component detects that the temperature of the battery module is high, the temperature detection component sends a temperature detection signal to the control component, and the control component controls the infusion pump to start, so that the coolant in the coolant pipe 10 can flow, so as to improve the heat dissipation effect of the battery.

[0034] In this embodiment, the temperature detection element is preferably an NTC thermistor. When the temperature changes, the resistance value of the NTC thermistor changes, and the control element detects the change of current or voltage in the circuit where the NTC thermistor is located to detect the temperature change of the battery.

[0035] like Figure 1 and Figure 2 As shown, in the first embodiment, the battery module is rectangular. The coolant pipe 10 includes a first pipe section 11, a second pipe section 12, a third pipe section 13 and a fourth pipe section 14 which are connected in sequence. The first pipe section 11 connects the liquid inlet and the liquid outlet, and the first pipe section 11, the second pipe section 12, the third pipe section 13 and the fourth pipe section 14 form a rectangle. In this way, the shape of the coolant pipe 10 can be adapted to the shape of the battery module, so that the coolant in the coolant pipe 10 can dissipate heat more evenly for the battery module. In addition, the shape of the coolant pipe 10 is simple and easy to process and assemble.

[0036] like Figure 3As shown, in the second embodiment, the arrangement of the coolant pipe 10 is different from that in the first embodiment. The coolant pipe 10 includes a liquid inlet section 15 and a liquid outlet section 16 arranged at intervals, and the coolant pipe 10 also includes a return section connected to the liquid inlet section 15 and the liquid outlet section 16. The inlet of the liquid inlet section 15 is the liquid inlet, and the outlet of the liquid outlet section 16 is the liquid outlet. In this way, the arrangement area of ​​the coolant pipe 10 on the battery module can be increased by setting the return section, so as to increase the heat of the battery module absorbed by the coolant pipe 10, and improve the heat dissipation effect of the battery. The return section includes a plurality of connection groups arranged in sequence, and each connection group includes a first connection section 17 and a second connection section 18 arranged at an angle and in communication. In this way, the processing and assembly of the connection group are facilitated, and the coolant in the coolant pipe 10 also makes the heat dissipation of the battery by the coolant more uniform, further improves the heat dissipation effect of the battery, prolongs the service life of the battery, improves the stability of the battery during use, and reduces the safety hazards of the battery caused by excessive temperature.

[0037] like Figure 1 and Figure 2 As shown, in the length direction of the cell module, the distance between the liquid storage tank 20 and the end surface of the first end of the cell module is smaller than the distance between the liquid storage tank 20 and the end surface of the second end of the cell module. In this way, the liquid storage tank 20 can avoid the related structure extending from the middle of the cell module, which is convenient for the arrangement and installation of the liquid storage tank 20.

[0038] In this embodiment, the battery module includes two battery cells arranged at an interval, a PCM board arranged between the two battery cells, and electronic components. The PCM board and the electronic components protrude from one side of the battery cell along the width direction of the battery cell. The liquid storage tank 20 is arranged on one side of the part where the PCM board and the electronic components protrude from the battery cell along the length direction of the battery cell.

[0039] like Figure 1 and Figure 2 As shown, there are multiple refrigeration components 40. The liquid storage tank 20 is a rectangular box having multiple outer walls. One outer wall of the rectangular box is against the outer wall of the battery module, and the number of the remaining outer walls is the same as the number of the multiple refrigeration components 40. The multiple refrigeration components 40 are arranged on the remaining outer walls in a one-to-one correspondence. In this way, one outer wall of the rectangular box is against the outer wall of the battery module, so that the connection between the liquid storage tank 20 and the battery module is more stable and reliable. The arrangement of multiple refrigeration components 40 can better cool the coolant in the liquid storage tank 20, so as to reduce the temperature of the coolant, facilitate better absorption of the heat generated by the battery module, improve the heat dissipation effect of the battery, extend the service life of the battery, and improve the stability of the battery during use.

[0040] In this embodiment, the cooling element 40 is preferably a semiconductor refrigerator. A semiconductor refrigerator is a heat sink made by utilizing the Peltier effect of semiconductor materials. Through the action of electric current, one end of the heat sink absorbs heat and the other end of the heat sink releases heat to reduce the temperature, thereby achieving a continuous cooling effect. Such a structural design solves the problem of poor heat dissipation performance of the battery from the perspective of active heat dissipation, and provides more possibilities for other subsequent technologies.

[0041] The present application also provides a battery, the battery includes a cell module and a protective plate 50 arranged on the cell module, the battery also includes the above-mentioned cooling device, and the cooling device is arranged on the cell module. Since the above-mentioned battery cooling device can solve the problem of poor heat dissipation effect of the battery in the related art, the battery with the cooling device can solve the same technical problem.

[0042] like Figure 1 and Figure 2 As shown, there are two guard plates 50, which are respectively arranged on both sides of the battery cell module. There are two coolant pipes 10, which are arranged on the two guard plates 50 in a one-to-one correspondence. There is one liquid storage tank 20, and both coolant pipes 10 are connected to the liquid storage tank 20. In this way, the arrangement of two coolant pipes 10 can increase the heat exchange area between the coolant and the battery, improve the efficiency of the coolant in the coolant pipe 10 to absorb the heat generated by the battery, and improve the heat dissipation effect of the battery.

[0043] In this embodiment, the protective plate 50 is a heat-conducting steel plate or a heat-conducting magnetic plate to facilitate the transfer of heat from the battery cell module and the heat dissipation of the battery.

[0044] like Figure 1 and Figure 2 As shown, the battery further includes a support frame 60. The support frame 60 is disposed around the outside of the battery module, and the guard plate 50 is fixedly connected to the support frame 60. The provision of the support frame 60 can improve the structural strength of the battery and facilitate the installation of the guard plate 50.

[0045] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0047] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0048] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery cooling device, characterized in that: include: A coolant pipe (10) is arranged on the battery cell module, the coolant pipe (10) having a liquid inlet and a liquid outlet; A liquid storage tank (20) is arranged on one side of the battery cell module, the liquid storage tank (20) connecting the liquid inlet and the liquid outlet; an infusion pump, arranged in the liquid storage tank (20) or on the cooling liquid pipe (10); A refrigeration component (40) disposed on the liquid storage tank (20); The cooling liquid pipe (10) comprises a liquid inlet section (15) and a liquid outlet section (16) which are arranged at intervals, and the cooling liquid pipe (10) further comprises a return section connected to the liquid inlet section (15) and the liquid outlet section (16), the inlet of the liquid inlet section (15) being the liquid inlet, and the outlet of the liquid outlet section (16) being the liquid outlet; the return section comprises a plurality of connection groups which are arranged in series, and each of the connection groups comprises a first connection section (17) and a second connection section (18) which are arranged in series and at an angle.

2. The battery cooling device according to claim 1, characterized in that: The coolant pipe (10) is bonded to the battery cell module, the coolant pipe (10) is a flexible pipe, and the contact surface between the coolant pipe (10) and the battery cell module is a plane.

3. The battery cooling device according to claim 1, characterized in that: The battery cooling device further comprises a temperature detection component arranged on the battery cell module and a control component connected to the temperature detection component by a signal, and the control component is control-connected to the infusion pump.

4. The battery cooling device according to claim 1, characterized in that: In the length direction of the battery cell module, the distance between the liquid storage tank (20) and the end surface of the first end of the battery cell module is smaller than the distance between the liquid storage tank (20) and the end surface of the second end of the battery cell module.

5. The battery cooling device according to claim 1, characterized in that: There are a plurality of refrigeration components (40), the liquid storage box (20) is a rectangular parallelepiped box, the rectangular parallelepiped box has a plurality of outer side walls, one of the outer side walls of the rectangular parallelepiped is in contact with the outer side wall of the battery cell module, the number of the remaining outer side walls is the same as the number of the plurality of refrigeration components (40), and the plurality of refrigeration components (40) are arranged on the remaining outer side walls in a one-to-one correspondence.

6. A battery, comprising a cell module and a protective plate (50) arranged on the cell module, characterized in that: The battery further comprises a cooling device as claimed in any one of claims 1 to 5, wherein the cooling device is arranged on the battery cell module.

7. The battery according to claim 6, characterized in that There are two guard plates (50), and the two guard plates (50) are respectively arranged on both sides of the battery cell module; there are two coolant pipes (10), and the two coolant pipes (10) are arranged on the two guard plates (50) in a one-to-one correspondence; there is one liquid storage tank (20), and the two coolant pipes (10) are both arranged in communication with the liquid storage tank (20).

8. The battery according to claim 6, characterized in that The battery further comprises a support frame (60), the support frame (60) being arranged around the outside of the battery cell module, and the protective plate (50) being fixedly connected to the support frame (60).

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