Liquid cooling PACK cell temperature and pole temperature dispersion detection control device

Abstract

The utility model discloses a liquid cooling PACK cell temperature and pole temperature dispersion detection control device, comprising a protection mechanism which comprises a housing, two hollow heat conduction plates installed in the housing, a battery pack installed between the two hollow heat conduction plates, and a temperature measurement mechanism. The temperature measuring mechanism comprises a glass bottle installed at one end of the battery pack and an air bag connected to the outer end of the glass bottle in a sleeving mode. According to the cooling device, after the air bag is heated and expanded and the light touch switch is pressed, the water pump is started, then cooling liquid in the cooling water box is pumped away and injected into the two hollow heat conduction plates through the water outlet pipe and the water receiving pipe, heat exchange is achieved, then the cooling liquid flowing through the hollow heat conduction plates flows out of the multiple backflow pipes, and when the cooling liquid flows down from the high position, the cooling liquid flows out. And then, the heat is collected by the heat dissipation water box and finally flows into the cooling water box, so that the reutilization of resources is realized, and the heat conduction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature measurement and control for energy storage, in particular to a device for distributed detection and control of liquid-cooled PACK battery core temperature and pole temperature. Background Art

[0002] Lithium batteries are the mainstream mobile power source on the market and have a wide range of applications. When lithium batteries are in use, their discharge time and storage saturation will change with the temperature of the external environment. Currently, in some new energy vehicles, ships and other industries, hundreds, thousands or even tens of thousands of small lithium batteries are usually combined into lithium battery packs to store and discharge electricity to provide power for new energy vehicles and ships.

[0003] The current use of automotive battery packs lacks thermal insulation or heat dissipation treatment for lithium battery packs during discharge and charging. As a result, lithium batteries are easily affected by external temperatures or the high temperatures generated by themselves, which affects the battery's service life and utilization rate, greatly affecting the use of the equipment. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A liquid-cooled PACK battery cell temperature and pole temperature distribution detection and control device, including a protection mechanism, the protection mechanism including a shell, two hollow heat-conducting plates installed inside the shell, a battery pack installed between the two hollow heat-conducting plates, a temperature measuring mechanism, the temperature measuring mechanism including a glass bottle installed at one end of the battery pack, an air bag sleeved on the outer end of the glass bottle, and a touch switch affixed to the air bag, the touch switch being fixed to the inner wall of the shell, and a heat-conducting mechanism, the heat-conducting mechanism including a heat dissipation water box provided at the bottom of the shell, a cooling water box connected to and communicated with the heat dissipation water box, a water pump connected to and communicated with the cooling water box, a water outlet pipe connected to the output end of the water pump, a water connecting pipe connected between the hollow heat-conducting plate and the water outlet pipe, two return pipes connected to and communicated with the hollow heat-conducting plate, and the touch switch being electrically connected to the water pump.

[0007] By adopting the above technical solution, the airbag expands due to heat, and when the touch switch is pressed, the water pump starts, and then the coolant in the cooling water box is drawn out, and then injected into the two hollow heat conduction plates through the outlet pipe and the water inlet pipe respectively to realize heat exchange. The coolant then flows through the hollow heat conduction plates and flows out from multiple return pipes. When the coolant flows down from a high place, it will cool down, and then it will be collected by the heat dissipation water box, and finally flow into the cooling water box, realizing the reuse of resources and reducing heat conduction costs.

[0008] In a preferred example, the present invention can be further configured as follows: a plurality of through openings are provided on the hollow heat conducting plate, the plurality of through openings are arranged in the same horizontal plane, and are not connected to the interior of the hollow heat conducting plate.

[0009] In a preferred example, the present invention can be further configured as follows: two water receiving pipes are arranged vertically and are laterally symmetrical with respect to the touch switch, and the water receiving pipes pass through a side wall of the housing.

[0010] In a preferred example, the present invention can be further configured as follows: a plurality of return pipes are located on the top of the heat dissipation water box, and the return pipes pass through the other side wall of the shell.

[0011] In a preferred example, the present invention can be further configured as follows: two frames are installed at the bottom of the shell, and the heat dissipation water box and the cooling water box are both installed between the two frames.

[0012] In a preferred example, the present invention can be further configured as follows: an anti-splashing cover is installed on the other side wall of the shell, the bottom of the anti-splashing cover is fixedly connected to the top of the heat dissipation water box, and the return pipe is located inside the anti-splashing cover.

[0013] In a preferred example, the present invention can be further configured as follows: a gap is left between the anti-splash cover and the housing.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] 1. In the utility model, the airbag expands due to heat, and when the touch switch is pressed, the water pump is started, and then the coolant in the cooling water box is drawn out, and then injected into the two hollow heat conduction plates through the water outlet pipe and the water inlet pipe respectively to realize heat exchange. Then the coolant flowing through the hollow heat conduction plates flows out from multiple return pipes, and then the coolant will cool down when flowing down from a high place, and then it will be collected by the heat dissipation water box, and finally flow into the cooling water box, realizing the reuse of resources and reducing the heat conduction cost.

[0016] 2. In the present invention, the heat generated by the battery pack when working will be transferred to the glass bottle, and then the gas in the glass bottle will expand due to the heat, and then inflate the airbag. When the temperature of the battery pack reaches a certain level, the enlarged airbag will press the touch switch, and the temperature detection is accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model;

[0019] Figure 3 This is a schematic diagram of the protection mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the temperature measuring mechanism of the utility model;

[0021] Figure 5 This is a schematic diagram of the heat conduction mechanism of the utility model.

[0022] Reference numerals:

[0023] 100. Protective mechanism; 110. Housing; 120. Hollow heat conducting plate; 130. Battery pack;

[0024] 200, temperature measuring mechanism; 210, glass bottle; 220, air bag; 230, touch switch;

[0025] 300, heat conduction mechanism; 310, heat dissipation water box; 320, cooling water box; 330, water pump; 340, water outlet pipe; 350, water receiving pipe; 360, return pipe;

[0026] 400, frame;

[0027] 500. Anti-splash cover. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0029] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0030] The following describes a device for distributed detection and control of liquid-cooled PACK cell temperature and pole temperature provided by some embodiments of the present invention in conjunction with the accompanying drawings.

[0031] Example 1:

[0032] Combine Figure 1-5 As shown, the present invention provides a liquid-cooled PACK battery core temperature and pole temperature distributed detection and control device, including a protection mechanism 100, the protection mechanism 100 including a housing 110, two hollow heat conducting plates 120 installed inside the housing 110, and a battery pack 130 installed between the two hollow heat conducting plates 120;

[0033] The temperature measuring mechanism 200 includes a glass bottle 210 mounted on one end of the battery pack 130, an air bag 220 sleeved on the outer end of the glass bottle 210, and a touch switch 230 attached to the air bag 220. The touch switch 230 is fixedly connected to the inner wall of the housing 110;

[0034] The heat conduction mechanism 300 includes a heat dissipation water box 310 provided at the bottom of the housing 110, a cooling water box 320 connected to and in communication with the heat dissipation water box 310, a water pump 330 connected to and in communication with the cooling water box 320, a water outlet pipe 340 connected to the output end of the water pump 330, a water receiving pipe 350 connected between the hollow heat conduction plate 120 and the water outlet pipe 340, and two return pipes 360 connected to and in communication with the hollow heat conduction plate 120. The touch switch 230 is electrically connected to the water pump 330.

[0035] Furthermore, the hollow heat conducting plate 120 is provided with a plurality of through-holes, which are arranged in the same horizontal plane and are not connected to the interior of the hollow heat conducting plate 120. The through-holes are provided to facilitate heat dissipation of the battery pack 130, and at the same time, it reduces the manufacturing materials of the hollow heat conducting plate 120 and reduces the manufacturing cost of the hollow heat conducting plate 120.

[0036] Furthermore, the two water pipes 350 are arranged vertically and are laterally symmetrical about the touch switch 230. The water pipes 350 pass through a side wall of the shell 110. This layout design ensures that the coolant can be injected into the two hollow heat conducting plates 120 to achieve heat dissipation of the battery pack 130.

[0037] Furthermore, multiple return pipes 360 are located on the top of the heat dissipation water box 310. The return pipes 360 pass through the other side wall of the shell 110. The provision of the return pipes 360 can recycle and reuse the coolant, thereby improving resource utilization.

[0038] Example 2:

[0039] Combine Figure 1-2 As shown, based on the first embodiment, two frames 400 are installed at the bottom of the housing 110, and the heat dissipation water box 310 and the cooling water box 320 are installed between the two frames 400. The frame 400 can support the housing 110 and then fix the heat dissipation water box 310 and the cooling water box 320 to improve the structural stability of the device.

[0040] Example 3:

[0041] Combine Figure 1-2 As shown, in the above embodiment, a splash-proof cover 500 is installed on the other side wall of the shell 110, the bottom of the splash-proof cover 500 is fixedly connected to the top of the heat dissipation water box 310, and the return pipe 360 ​​is located inside the splash-proof cover 500. The splash-proof cover 500 is provided to prevent the coolant flowing from the outlet pipe 340 from splashing everywhere.

[0042] Furthermore, a gap is left between the anti-splash cover 500 and the housing 110. The gap allows the used coolant to cool down quickly when it falls from a high place to a low place.

[0043] The working principle and usage process of the present invention are as follows: When the device is put into actual use, the heat generated by the battery pack 130 during operation will be transferred to the glass bottle 210, and then the gas in the glass bottle 210 will expand due to the heat, and then inflate the airbag 220. When the temperature of the battery pack 130 reaches a certain level, the enlarged airbag 220 will press the touch switch 230, and then the water pump 330 will start, and then the coolant in the cooling water box 320 will be drawn out, and then injected into the two hollow heat conducting plates 120 through the water outlet pipe 340 and the water receiving pipe 350 to realize heat exchange, and then the coolant flowing through the hollow heat conducting plates 120 will flow out from multiple return pipes 360, and then the coolant will cool down when flowing down from a high place, and then be collected by the heat dissipating water box 310, and finally flow into the cooling water box 320, realizing the reuse of resources and reducing the heat conduction cost.

[0044] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A liquid-cooled PACK battery cell temperature and pole temperature distributed detection and control device, characterized in that: include: A protection mechanism (100), comprising a housing (110), two hollow heat-conducting plates (120) installed inside the housing (110), and a battery pack (130) installed between the two hollow heat-conducting plates (120); A temperature measuring mechanism (200), the temperature measuring mechanism (200) comprising a glass bottle (210) mounted on one end of the battery pack (130), an air bag (220) sleeved on the outer end of the glass bottle (210), and a touch switch (230) attached to the air bag (220), wherein the touch switch (230) is fixedly connected to the inner wall of the housing (110); A heat conduction mechanism (300) includes a heat dissipation water box (310) provided at the bottom of the housing (110), a cooling water box (320) connected to and in communication with the heat dissipation water box (310), a water pump (330) connected to and in communication with the cooling water box (320), a water outlet pipe (340) connected to the output end of the water pump (330), a water connection pipe (350) connected between the hollow heat conduction plate (120) and the water outlet pipe (340), and two return pipes (360) connected to and in communication with the hollow heat conduction plate (120); the touch switch (230) is electrically connected to the water pump (330).

2. The device for distributed detection and control of liquid-cooled PACK core temperature and pole temperature according to claim 1, characterized in that: The hollow heat conducting plate (120) is provided with a plurality of through openings, which are arranged in the same horizontal plane and are not connected to the interior of the hollow heat conducting plate (120).

3. The device for distributed detection and control of liquid-cooled PACK core temperature and pole temperature according to claim 1, characterized in that: The two water receiving pipes (350) are arranged vertically and are laterally symmetrical with respect to the touch switch (230). The water receiving pipes (350) penetrate a side wall of the housing (110).

4. The device for distributed detection and control of liquid-cooled PACK core temperature and pole temperature according to claim 1, characterized in that: A plurality of return pipes (360) are all located on the top of the heat dissipation water box (310), and the return pipes (360) pass through the other side wall of the housing (110).

5. The device for distributed detection and control of liquid-cooled PACK core temperature and pole temperature according to claim 1, characterized in that: Two frames (400) are installed at the bottom of the housing (110), and the heat dissipation water box (310) and the cooling water box (320) are both installed between the two frames (400).

6. The device for distributed detection and control of liquid-cooled PACK core temperature and pole temperature according to claim 1, characterized in that: An anti-splash cover (500) is installed on the other side wall of the housing (110), the bottom of the anti-splash cover (500) is fixedly connected to the top of the heat dissipation water box (310), and the return pipe (360) is located inside the anti-splash cover (500).

7. The device for distributed detection and control of liquid-cooled PACK core temperature and pole temperature according to claim 6, characterized in that: A gap is left between the anti-splash cover (500) and the housing (110).

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