Battery formation and capacity grading needle bed

Abstract

The utility model discloses a battery formation capacity grading needle bed, which comprises a needle bed and a plurality of power supply devices, the needle bed comprises a battery tray, and the battery tray is used for placing a battery to be tested; the plurality of power supply devices are mounted on the needle bed, each power supply device comprises a plurality of test probes, a shell and a plurality of power supply modules arranged on the shell, the power supply modules are correspondingly and electrically connected with the test probes through cables, and the test probes are used for being in contact conduction with a to-be-tested battery; each power module comprises a circuit board assembly and a liquid cooling plate arranged on the circuit board assembly, a cooling channel is arranged in the liquid cooling plate, a liquid inlet of the cooling channel is communicated with a liquid inlet pipe, a liquid outlet of the cooling channel is communicated with a liquid outlet pipe, and the liquid cooling plate is in contact with the circuit board assembly so as to dissipate heat of the circuit board assembly. According to the technical scheme, the power supply device and the needle bed are integrated, so that cost increase and energy consumption increase caused by a long cable are avoided, and meanwhile, liquid cooling is adopted to reduce noise and improve heat dissipation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing, in particular to a battery capacity component needle bed. Background Art

[0002] In the battery manufacturing process, formation and capacity division are two very important processes, both of which will affect the quality of the battery. Since the basic principles of formation and capacity division are common, these two processes can be completed by a battery formation and capacity division needle bed, which usually includes a power supply device and a needle bed.

[0003] During the formation or capacity division process, the temperature uniformity of the battery must be ensured. Since both the power supply device and the battery will generate a lot of heat, in traditional technology, the power supply device and the needle bed are usually placed separately and connected by a long cable to avoid mutual influence between the two. However, this causes the battery formation and capacity division needle bed to occupy a large area, and the long cable will increase the cost and energy consumption, causing great troubles for connection and wiring. At the same time, a separate power supply device generally uses multiple fans for air cooling and heat dissipation, which is noisy and has low heat dissipation efficiency. Utility Model Content

[0004] The main purpose of the utility model is to propose a battery-type component needle bed, which aims to integrate a power supply device and a needle bed to avoid the increase in cost and energy consumption caused by long cables, and at the same time adopt liquid cooling to reduce noise and improve heat dissipation efficiency.

[0005] In order to achieve the above-mentioned purpose, the battery-type capacity needle bed proposed in the utility model comprises:

[0006] A needle bed, the needle bed comprising a battery tray, the battery tray being used to place batteries to be tested;

[0007] A plurality of power supply devices are installed on the needle bed, the power supply devices include a liquid inlet pipe, a liquid outlet pipe, a plurality of test probes, a shell, and a plurality of power supply modules arranged on the shell, the power supply modules are electrically connected to the corresponding test probes through cables, and the test probes are used to contact and conduct with the battery to be tested;

[0008] Each of the power modules includes a circuit board assembly and a liquid cooling plate arranged on the circuit board assembly, a cooling channel is arranged inside the liquid cooling plate, a liquid inlet of the cooling channel is connected to the liquid inlet pipe, a liquid outlet of the cooling channel is connected to the liquid outlet pipe, and the liquid cooling plate is in contact with the circuit board assembly to dissipate the heat of the circuit board assembly.

[0009] Furthermore, the liquid inlet pipe comprises a liquid inlet pipe body and a plurality of first connecting pipes connected to the side wall of the liquid inlet pipe body, and the plurality of first connecting pipes are connected to the liquid inlets of the plurality of cooling channels one by one;

[0010] The liquid outlet pipe includes a liquid outlet pipe body and a plurality of second connecting pipes connected to the side wall of the liquid outlet pipe body, and the plurality of second connecting pipes are connected to the liquid outlets of the plurality of cooling channels one by one.

[0011] Furthermore, the circuit board assembly includes a first aluminum plate, a second aluminum plate, a first circuit board and a second circuit board, the first circuit board is installed on the first aluminum plate, the second circuit board is installed on the second aluminum plate, and the liquid cooling plate is provided with flanges on opposite sides respectively, and the two flanges form slots with the outer side walls on opposite sides of the liquid cooling plate respectively, and the two slots are used to respectively clamp the first aluminum plate and the second aluminum plate, so that the first aluminum plate and the second aluminum plate are attached to the liquid cooling plate.

[0012] Further, at least one first baffle and at least one second baffle are provided in the cooling channel, the liquid cooling plate has a first inner wall and a second inner wall opposite to each other, the right end of the first baffle is connected to the first inner wall, a first liquid outlet is formed between the left end of the first baffle and the second inner wall, a second liquid outlet is formed between the right end of the second baffle and the first inner wall, and the left end of the second baffle is connected to the second inner wall;

[0013] The first partitions and the second partitions are arranged alternately along a length direction perpendicular to the first partitions.

[0014] Furthermore, a third partition is disposed between each adjacent first partition and second partition, and the third partition is disposed between the first inner wall and the second inner wall.

[0015] Furthermore, the power supply device is detachably mounted on the needle bed.

[0016] Furthermore, the power supply device can be slidably mounted on the needle bed.

[0017] Furthermore, a handle is provided on the shell.

[0018] Furthermore, an air cooling component is arranged between each adjacent power supply device, and the air cooling component includes multiple fans and an air cooling shell. The air cooling shell is provided with an air duct, and the air duct has a first air outlet, a second air outlet and an air inlet. The fan is installed at the air inlet, and the air cooling shell has a diverter, and the diverter is arranged in a V shape. The diverter is used to divert the wind in the air duct to the first air outlet and the second air outlet.

[0019] Further, the air duct includes a first air duct and a second air duct connected to each other, the first air duct is connected to the air inlet, the second air duct is connected to the first air outlet and the second air outlet, and the cross-sectional area of ​​the first air duct is greater than the cross-sectional area of ​​the second air duct.

[0020] Compared with the prior art, the technical solution of the utility model can not only reduce the floor space, but also greatly shorten the length of the cable by integrating the power supply device and the needle bed, thereby reducing the cable cost. The shortened cable length can also reduce the impedance of the cable, thereby reducing heat and energy consumption. In addition, the coolant flows from the liquid inlet pipe into the cooling channel inside the liquid cooling plate. After the coolant contacts the liquid cooling plate to exchange heat, it flows out from the liquid outlet pipe, taking out the heat of the liquid cooling plate. The liquid cooling plate itself cools down. Since the liquid cooling plate contacts the circuit board assembly, the heat of the circuit board assembly can be transferred to the liquid cooling plate, so that the liquid cooling plate can take away the heat of the circuit board assembly. In this way, by using the liquid cooling plate to dissipate heat, compared with the traditional fan heat dissipation, the noise is reduced, the heat dissipation efficiency is improved, and the heat dissipation effect is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of the battery capacity needle bed of the utility model;

[0022] Figure 2 It is a structural schematic diagram of another angle of the battery-type capacity needle bed of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the power supply device of the battery-type capacity needle bed of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the power module, liquid inlet pipe and liquid outlet pipe of the battery-type capacity needle bed of the utility model;

[0025] Figure 5 It is an exploded view of the battery-type capacity bed-of-needle power module of the utility model;

[0026] Figure 6 It is a cross-sectional perspective view of the liquid cooling plate of the battery-type capacity needle bed of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the liquid outlet pipe of the battery-type capacity needle bed of the utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the liquid inlet pipe of the battery capacity needle bed of the utility model;

[0029] Fig. 9 It is a structural schematic diagram of the air cooling assembly of the battery capacity needle bed of the utility model;

[0030] Fig.10It is a cross-sectional view of the air-cooled shell of the battery-type capacity needle bed of the utility model.

[0031] Description of the accompanying drawings: 100, needle bed; 110, battery tray; 200, power supply device; 300, test probe; 210, housing; 220, power module; 230, circuit board assembly; 240, liquid cooling plate; 241, cooling channel; 242, liquid inlet; 250, liquid inlet pipe; 243, liquid outlet; 260, liquid outlet pipe; 251, liquid inlet pipe body; 252, first connecting pipe; 261, liquid outlet pipe body; 262, second connecting pipe; 244, first partition; 245, second partition; 2 47. First liquid outlet; 248. Second liquid outlet; 246. Third partition; 270. Handle; 400. Air-cooling assembly; 410. Fan; 420. Air-cooling housing; 430. Air duct; 431. First air outlet; 432. Second air outlet; 433. Air inlet; 440. Diverter; 421. First air duct; 422. Second air duct; 231. First aluminum plate; 232. Second aluminum plate; 233. First circuit board; 234. Second circuit board; 235. Flanging; 236. Card slot. DETAILED DESCRIPTION

[0032] 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. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figures 1 to 10 The utility model provides a battery-type capacity needle bed 100.

[0034] The battery componentization needle bed 100 includes a needle bed 100 and a plurality of power supply devices 200. The needle bed 100 includes a battery tray 110, and the battery tray 110 is used to place the battery to be tested; the plurality of power supply devices 200 are installed on the needle bed 100, and the power supply device 200 includes a liquid inlet pipe 250, a liquid outlet pipe 260, a plurality of test probes 300, a shell 210 and a plurality of power modules 220 arranged on the shell 210, the power module 220 is electrically connected to the corresponding test probe 300 through a cable, and the test probe 300 is used to contact and conduct with the battery to be tested; each power module 220 includes a circuit board assembly 230 and a liquid cooling plate 240 arranged on the circuit board assembly 230, and a cooling channel 241 is provided inside the liquid cooling plate 240, the liquid inlet 242 of the cooling channel 241 is connected to the liquid inlet pipe 250, and the liquid outlet 243 of the cooling channel 241 is connected to the liquid outlet pipe 260, and the liquid cooling plate 240 is in contact with the circuit board assembly 230 to dissipate the heat of the circuit board assembly 230.

[0035] Specifically, the power module 220 is connected to one end of the test probe 300 through the circuit board assembly 230, and the other end of the test probe 300 is used to contact and conduct with the battery to be tested to complete the battery capacity division and formation work. The liquid cooling plate 240 can be made of a thermally conductive material, and the liquid inlet pipe 250 is used to connect to an external cooling liquid device to provide cooling liquid, such as cold water, for the liquid cooling plate 240. The battery capacity splitting needle bed 100 of the utility model can not only reduce the occupied area, but also greatly shorten the length of the cable, thereby reducing the cable cost, and the shortened cable length can also reduce the impedance of the cable, thereby reducing heat and energy consumption; in addition, the flow path of the coolant for heat dissipation in the battery capacity splitting needle bed 100 is: the coolant flows from the liquid inlet pipe 250 into the cooling channel 241 inside the liquid cooling plate 240, and the coolant contacts the liquid cooling plate 240 to exchange heat and then flows out from the liquid outlet pipe 260, taking out the heat of the liquid cooling plate 240, and the liquid cooling plate 240 itself cools down. Since the liquid cooling plate 240 contacts the circuit board assembly 230, the heat of the circuit board assembly 230 can be conducted to the liquid cooling plate 240, so that the liquid cooling plate 240 can take away the heat of the circuit board assembly 230. In this way, the heat is dissipated by the liquid cooling plate 240 . Compared with the traditional heat dissipation by the fan 410 , the liquid cooling plate 240 is in direct contact with the circuit board assembly 230 , so the heat dissipation efficiency is higher, there is no noise, and the heat dissipation effect is stable.

[0036] See also Figures 4 to 8 Furthermore, the liquid inlet pipe 250 includes a liquid inlet pipe 250 body and a plurality of first connecting pipes 252 connected to the side wall of the liquid inlet pipe 250 body, and the plurality of first connecting pipes 252 are connected one-to-one to the liquid inlets 242 of the plurality of cooling channels 241; the liquid outlet pipe 260 includes a liquid outlet pipe 260 body and a plurality of second connecting pipes 262 connected to the side wall of the liquid outlet pipe 260 body, and the plurality of second connecting pipes 262 are connected one-to-one to the liquid outlets 243 of the plurality of cooling channels 241. Specifically, the liquid inlet pipe 250 and the liquid outlet pipe 260 can be fixed to the housing 210 of the power supply device 200 by screws, and the liquid inlet pipe 250 and the liquid outlet pipe 260 are both placed horizontally on the side of the power supply device 200, and are respectively connected to the liquid inlet 242 and the liquid outlet 243 of the cooling channel 241 of the corresponding power module 220 through a plurality of first connecting pipes 252 arranged along the length direction of the liquid inlet pipe 250 and a plurality of second connecting pipes 262 arranged along the length direction of the liquid outlet pipe 260. In this way, there is no need for a complex connection structure, and only one coolant output device is needed to transport the coolant to the cooling channel 241 of each power module 220, which has a simple structure, stable heat dissipation, and no noise.

[0037] See also Figure 5Further, the circuit board assembly 230 includes a first aluminum plate 231, a second aluminum plate 232, a first circuit board 233 and a second circuit board 234, the first circuit board 233 is mounted on the first aluminum plate 231, the second circuit board 234 is mounted on the second aluminum plate 232, and flanges 235 are respectively provided on opposite sides of the liquid cooling plate 240, and slots 236 are formed between the two flanges 235 and the outer side walls on opposite sides of the liquid cooling plate 240, respectively, and the two slots 236 are used to insert the first aluminum plate 231 and the second aluminum plate 232, so that the first aluminum plate 231 and the second aluminum plate 232 are attached to the liquid cooling plate 240. Specifically, the aluminum plate has good thermal conductivity, the first aluminum plate 231 can conduct the heat of the first circuit board 233, and the second aluminum plate 232 can conduct the heat of the second circuit board 234. The first aluminum plate 231 and the second aluminum plate 232 are tightly attached to the liquid cooling plate 240 through the card slot 236. The liquid cooling plate 240 is arranged between the first aluminum plate 231 and the second aluminum plate 232, which is beneficial to conduct the heat of the first circuit board 233 and the second circuit board 234 to the liquid cooling plate 240. The liquid cooling plate 240 uniformly takes away the heat of the first circuit board 233 and the second circuit board 234, thereby improving the heat dissipation efficiency.

[0038] See also Figure 6 Furthermore, at least one first partition plate 244 and at least one second partition plate 245 are provided in the cooling channel 241, the liquid cooling plate 240 has a first inner wall and a second inner wall opposite to each other, the right end of the first partition plate 244 is connected to the first inner wall, a first liquid outlet 247 is formed between the left end of the first partition plate 244 and the second inner wall, a second liquid outlet 248 is formed between the right end of the second partition plate 245 and the first inner wall, and the left end of the second partition plate 245 is connected to the second inner wall; along the length direction perpendicular to the first partition plate 244, the first partition plate 244 and the second partition plate 245 are arranged alternately. It can be understood that, in this way, after the coolant enters the cooling channel 241 from the liquid inlet pipe 250, it flows along the first partition 244, the second partition 245, and the third partition 246, so that the coolant flows in an S-shaped curve in the cooling channel 241, extending the flow path of the coolant inside the liquid cooling plate 240, and increasing the contact area between the coolant and the liquid cooling plate 240, so that the coolant can take away more heat from the liquid cooling plate 240, thereby enhancing the heat dissipation effect of the liquid cooling plate 240.

[0039] Continue reading Figure 6 Furthermore, a third partition 246 is provided between each adjacent first partition 244 and second partition 245, and the third partition 246 is provided between the first inner wall and the second inner wall. With such a configuration, before the coolant turns, the coolant is divided into two flow channels, extending the path of the coolant in the flow channel inside the liquid cooling plate 240, increasing the contact area between the coolant and the liquid cooling plate 240, so that the coolant can take away more heat from the liquid cooling plate 240, and improving the heat dissipation effect.

[0040] See also Figures 1 to 3 In order to facilitate replacement or maintenance of the power supply device 200, the power supply device 200 is further detachably mounted on the needle bed 100. Specifically, when the power supply device 200 fails or needs maintenance, the power supply device 200 is disassembled from the needle bed 100 to facilitate replacement of the power module 220 or the test probe 300, etc., to prevent the structure of the needle bed 100 from limiting the user's vision and affecting the maintenance efficiency. The power supply device 200 can be disassembled in a variety of ways, such as: snap-on release, sliding disassembly, etc.

[0041] See also Figures 1 to 3 Furthermore, the power supply device 200 can be slidably mounted on the needle bed 100. Specifically, a slide rail is provided on the needle bed 100, and a slider is provided on the housing 210 of the power supply device 200. The slider can slide on the slide rail, so that the power supply device 200 can be slidably removed from the needle bed 100, making it more convenient to remove the power supply device 200 for maintenance.

[0042] See also Figures 1 to 3 In order to facilitate the user to disassemble the power supply device 200, a handle 270 is further provided on the housing 210. When the power supply device 200 needs to be repaired, the user can hold the handle 270 by hand to slide the power supply device 200 along the needle bed 100 for easy maintenance.

[0043] See also Figures 9 and 10 Furthermore, an air cooling assembly 400 is arranged between each adjacent power supply device 200, and the air cooling assembly 400 includes multiple fans 410 and an air cooling shell 420. The air cooling shell 420 is provided with an air duct 430, and the air duct 430 has a first air outlet 431, a second air outlet 432 and an air inlet 433. The fan 410 is installed at the air inlet 433, and the air cooling shell 420 has a diverter 440, which is arranged in a V shape. The diverter 440 is used to divert the wind in the air duct 430 out of the first air outlet 431 and the second air outlet 432. It is understandable that after a long period of operation, the test battery will generate heat. The heat of the test battery can be taken away by setting up an air cooling component 400. Setting the air cooling component 400 between two adjacent power supply devices 200 is beneficial to space utilization. At the same time, the diverter 440 diverts the wind to both sides of the first air outlet 431 and the second air outlet 432, diffusing the air flow, increasing the air flow range, and enhancing the heat dissipation efficiency of the air cooling component 400 for the battery.

[0044] Continue reading Figures 9 and 10Further, the air duct 430 includes a first air duct 421 and a second air duct 422 that are interconnected, the first air duct 421 is connected to the air inlet 433, the second air duct 422 is connected to the first air outlet 431 and the second air outlet 432, and the cross-sectional area of ​​the first air duct 421 is greater than the cross-sectional area of ​​the second air duct 422. Specifically, the wind flows from the first air duct 421 with a large opening toward the second air duct 422 with a small opening, so that the wind speed flowing out of the first air outlet 431 and the second air outlet 432 is faster, which increases the speed of air flow, and the heat dissipation efficiency is higher under the same power of the fan 410.

[0045] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A battery capacity needle bed, characterized in that: include: A needle bed, the needle bed comprising a battery tray, the battery tray being used to place batteries to be tested; A plurality of power supply devices are installed on the needle bed, the power supply devices include a liquid inlet pipe, a liquid outlet pipe, a plurality of test probes, a shell, and a plurality of power supply modules arranged on the shell, the power supply modules are electrically connected to the corresponding test probes through cables, and the test probes are used to contact and conduct with the battery to be tested; Each of the power modules includes a circuit board assembly and a liquid cooling plate arranged on the circuit board assembly, a cooling channel is arranged inside the liquid cooling plate, a liquid inlet of the cooling channel is connected to the liquid inlet pipe, a liquid outlet of the cooling channel is connected to the liquid outlet pipe, and the liquid cooling plate is in contact with the circuit board assembly to dissipate the heat of the circuit board assembly.

2. The battery componentization needle bed according to claim 1, characterized in that: The liquid inlet pipe comprises a liquid inlet pipe body and a plurality of first connecting pipes connected to the side wall of the liquid inlet pipe body, wherein the plurality of first connecting pipes are connected to the liquid inlets of the plurality of cooling channels one by one; The liquid outlet pipe includes a liquid outlet pipe body and a plurality of second connecting pipes connected to the side wall of the liquid outlet pipe body, and the plurality of second connecting pipes are connected to the liquid outlets of the plurality of cooling channels one by one.

3. The battery componentization needle bed according to claim 1, characterized in that: The circuit board assembly includes a first aluminum plate, a second aluminum plate, a first circuit board and a second circuit board. The first circuit board is installed on the first aluminum plate, and the second circuit board is installed on the second aluminum plate. The liquid cooling plate is provided with flanges on opposite sides, and the two flanges form slots with the outer side walls on opposite sides of the liquid cooling plate, respectively. The two slots are used to insert the first aluminum plate and the second aluminum plate, so that the first aluminum plate and the second aluminum plate are attached to the liquid cooling plate.

4. The battery componentization needle bed according to claim 1, characterized in that: At least one first baffle and at least one second baffle are provided in the cooling channel, the liquid cooling plate has a first inner wall and a second inner wall opposite to each other, the right end of the first baffle is connected to the first inner wall, a first liquid port is formed between the left end of the first baffle and the second inner wall, a second liquid port is formed between the right end of the second baffle and the first inner wall, and the left end of the second baffle is connected to the second inner wall; The first partitions and the second partitions are arranged alternately along a length direction perpendicular to the first partitions.

5. The battery componentization needle bed according to claim 4, characterized in that: A third partition is disposed between each adjacent first partition and second partition, and the third partition is disposed between the first inner wall and the second inner wall.

6. The battery componentization needle bed according to any one of claims 1 to 5, characterized in that: The power supply device is detachably mounted on the needle bed.

7. The battery componentization needle bed according to claim 6, characterized in that: The power supply device is slidably mounted on the needle bed.

8. The battery componentization needle bed according to claim 7, characterized in that: The shell is provided with a handle.

9. The battery componentization needle bed according to claim 1, characterized in that: An air cooling component is arranged between each adjacent power supply device, and the air cooling component includes multiple fans and an air cooling shell. The air cooling shell is provided with an air duct, and the air duct has a first air outlet, a second air outlet and an air inlet. The fan is installed at the air inlet, and the air cooling shell has a diverter, and the diverter is arranged in a V shape. The diverter is used to divert the wind in the air duct to the first air outlet and the second air outlet.

10. The battery componentization needle bed according to claim 9, characterized in that: The air duct includes a first air duct and a second air duct connected to each other, the first air duct is connected to the air inlet, the second air duct is connected to the first air outlet and the second air outlet, and the cross-sectional area of ​​the first air duct is greater than the cross-sectional area of ​​the second air duct.

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