Charge and discharge testing device for button cell

Abstract

The utility model discloses a button cell charging and discharging test device, which comprises a box body and a plurality of detection mechanisms, and the plurality of detection mechanisms are arranged in the box body. The detection mechanism comprises a detection rack, a pressing mechanism, an upper detection module, a lower detection module, a tray rack, a tray and a tray rack spring; the downward pressing mechanism is installed on the detection machine frame, the upper detection module is installed in the middle of the downward pressing mechanism, the periphery of the tray frame is connected to the guide columns in a sleeved mode, the lower ends of the guide columns are fixed to the lower detection module, the tray frame springs are connected to the guide columns in a sleeved mode, and the two ends of each tray frame spring abut against the tray frame and the lower detection module respectively. And the lower detection module is mounted on the detection rack. During detection, a tray provided with a plurality of button cells is inserted from the tray rack, the pressing mechanism is driven, the pressing mechanism presses the composite probe on the upper detection module to the top surface of the button cell and pushes the composite probe on the lower detection module to the bottom surface of the button cell, detection is carried out, and the detection process is very rapid.

Description

Technical Field

[0001] This utility model relates to the field of battery charging and discharging technology, and in particular to a button battery charging and discharging testing device. Background Technology

[0002] In the new energy industry, to obtain the electrochemical performance of lithium battery materials, button cells are assembled and then subjected to charge-discharge tests. Before testing, the top and bottom surfaces of the button cells are usually clamped manually with test clips before external testing equipment is connected. This method requires clamping each button cell for testing, which is particularly labor-intensive when testing large quantities, and carries the risk of batteries falling out and short-circuiting. Furthermore, each test clip needs to be accompanied by a set of wires for electrical connection. When conducting large-scale testing, a matching number of test clips must be clamped, and each one must be individually connected to the wires, making the testing mechanism complex and space-consuming. Finally, after testing, the batteries must be manually removed one by one, making the testing process quite cumbersome. Utility Model Content

[0003] The purpose of this invention is to provide a button battery charge and discharge testing device that is quick and convenient to use, has a simple structure, and occupies a small area.

[0004] To achieve the above objectives, the technical solution of this utility model is:

[0005] This utility model relates to a button battery charging and discharging testing device, including a testing mechanism. The testing mechanism includes a testing frame, a pressing mechanism, an upper testing module, a lower testing module, a tray frame, a tray, and a tray frame spring. The testing frame is installed on a partition inside a housing. The pressing mechanism is installed on the testing frame. The upper testing module is installed in the middle of the pressing mechanism and located above the tray frame. The pressing mechanism can drive the upper testing module to move up and down. The periphery of the tray frame is sleeved on a guide post. The lower end of the guide post is fixed to the lower testing module. The tray frame spring is sleeved on the guide post, and both ends of the tray frame spring abut against the tray frame and the lower testing module, respectively. The tray for placing the button battery is set on the tray frame and located directly below the upper testing module. The lower testing module is installed on the testing frame and located below the tray frame.

[0006] The upper detection module has the same structure as the lower detection module; the upper detection module includes a detection frame, multiple terminal blocks, multiple PCB boards, and multiple sets of composite probes; the top surface of the detection frame is connected to the pressing mechanism, the multiple terminal blocks are fixedly installed side by side on the side wall of the detection frame for connecting external data cables, the outer ends of the multiple PCB boards are respectively connected to the multiple terminal blocks, the upper ends of the multiple sets of composite probes are respectively fixed on the multiple PCB boards, and the lower ends of the composite probes extend towards the tray.

[0007] The pressing mechanism includes a pressing base, a pressing rod, a handle, a guide rod, and a linear bearing. The pressing base is fixed on the testing frame, the pressing rod is movably inserted through the pressing base, the lower end of the pressing rod is connected to the testing frame of the upper testing module, the handle is hinged to the top of the pressing rod and the middle of the handle is hinged to the testing frame, and the outer side of the testing frame of the upper testing module is movably sleeved on the guide rod through the linear bearing and can move up and down along the guide rod.

[0008] The pressing mechanism includes a pressing cylinder, a guide rod, and a linear bearing; the cylinder body of the pressing cylinder is fixed on the testing frame, and the piston rod end of the pressing cylinder is connected to the testing frame of the upper testing module. The outer side of the testing frame of the upper testing module is movably sleeved on the guide rod through the linear bearing and can move up and down along the guide rod.

[0009] The tray frame includes a tray base plate, two guide frames, and an adsorption element. The tray base plate is movably sleeved on the guide posts. The two guide frames are respectively installed on both sides of the tray base plate and arranged parallel to each other. The top surface of the guide frames is a stepped surface. The adsorption element is installed on the inner end of the tray base plate, and the outer end of the tray base plate is the tray's entry end. The two sides of the tray have stepped surfaces, and the stepped surfaces of the tray abut against the stepped surface of the top surface of the tray frame. After the tray is inserted from the entry end of the tray base plate, the insertion end of the tray is adsorbed by the adsorption element. According to the above-described button battery charging and discharging testing device, it is characterized by further including a housing and multiple detection mechanisms; the multiple detection mechanisms are installed inside the housing.

[0010] By adopting the above solution, this utility model has the following advantages:

[0011] 1. During the testing process of this utility model, multiple button batteries to be tested are placed in the slot of the tray. The tray containing multiple button batteries is inserted from the tray frame, and the pressing mechanism is driven to press the upper testing module down until the composite probe on the upper testing module presses the top surface of the button battery. The pressing continues to make the tray frame move down along the guide post until the composite probe on the lower testing module touches the bottom surface of the button battery for testing and to obtain test data. The testing process is very fast.

[0012] 2. Because the detection module of this utility model uses a terminal block to connect to the PCB board, and the terminal block is fixedly installed side by side on the side wall of the detection frame, and uses an external data cable, it saves a large number of wires required by traditional detection clips, reduces line resistance, and has a simple and compact mechanism. Multiple sets of composite probes can simultaneously detect the current and voltage during the charging and discharging process of a button battery.

[0013] 3. Because this utility model uses a pull-out tray, it makes it more convenient and faster to pick up and put in batteries, and the position and number of batteries can be adjusted as needed to meet different testing requirements.

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is an isometric drawing of this utility model;

[0016] Figure 2 This is an isometric drawing of the testing mechanism of this utility model;

[0017] Figure 3 This is an isometric view of the detection module of this utility model;

[0018] Figure 4 This is an isometric drawing of the pallet frame of this utility model;

[0019] Figure 5 This is a cross-sectional view of the composite probe;

[0020] Figure 6 This is an isometric view of another embodiment of the pressing mechanism of this utility model. Detailed Implementation

[0021] like Figure 1 , Figure 2 As shown, this utility model is a button battery charging and discharging test device, including a housing 1 and four detection mechanisms 2; two of the detection mechanisms 2 are installed on the bottom plate of the housing 1, and the remaining two detection mechanisms 2 are installed on the partition plate 11 of the housing.

[0022] The testing mechanism 2 includes a testing frame 21, a pressing mechanism 22, an upper testing module 23, a lower testing module 24, a tray frame 25, a tray 26, a tray frame spring 27, and a guide post 28. The testing frame 21 is installed on the partition 11 inside the housing 1. The pressing mechanism 22 is installed on the testing frame 21. The upper testing module 23 is installed in the middle of the pressing mechanism 22 and is located above the tray frame 25. The pressing mechanism 22 can drive the upper testing module 23 to move up and down. The periphery of the tray frame 25 is sleeved on the guide post 28. The lower end of the guide post 28 is fixed on the lower testing module 24. The tray frame spring 27 is sleeved on the guide post 28, and the two ends of the tray frame spring 27 abut against the tray frame 25 and the lower testing module 24, respectively. The tray 26 for placing the button battery 100 is placed on the tray frame 25 and is located directly below the upper testing module 23. The lower testing module 24 is installed on the testing frame 21 and is located below the tray frame 25.

[0023] Combination Figure 3As shown, the upper detection module 23 and the lower detection module 24 have the same structure; the upper detection module 23 includes a detection frame 231, multiple terminal blocks 232, multiple PCB boards 233, and multiple sets of composite probes 234; the top surface of the detection frame 231 is connected to the pressing mechanism 22, the multiple terminal blocks 232 are fixedly installed side by side on the side wall of the detection frame 231 for connecting external data cables, the outer ends of the multiple PCB boards 233 are respectively connected to the multiple terminal blocks 232, the upper ends of the multiple sets of composite probes 234 are respectively fixed on the multiple PCB boards 233, and the lower ends of the composite probes 234 extend towards the tray 26. Figure 5 As shown, the composite probe 234 is a standard component, which mainly consists of a current probe 2341 for detecting current and a voltage probe 2342 for detecting voltage. The current probe 2341 and the voltage probe 2342 are sleeved together, which can simultaneously detect the current and voltage of the button battery 100.

[0024] The first embodiment of the pressing mechanism 22: The pressing mechanism 22 includes a pressing seat 221, a pressing rod 222, a handle 223, a guide rod 224, and a linear bearing 225; the pressing seat 221 is fixed on the testing frame 21, the pressing rod 222 is movably inserted through the pressing seat 221, the lower end of the pressing rod 222 is connected to the testing frame 231 of the upper testing module 23, the handle 223 is hinged to the top of the pressing rod 222 and the middle part of the handle 223 is hinged to the testing frame 21, the outer side of the testing frame 231 of the upper testing module 23 is movably sleeved on the guide rod 224 through the linear bearing 225 and can move up and down along the guide rod 224.

[0025] like Figure 4 As shown, the tray frame 25 includes a tray base plate 251, two guide frames 252, and an adsorption element 253. The tray base plate 251 is movably sleeved on the guide post 28. The two guide frames 252 are respectively installed on both sides of the tray base plate 251 and arranged in parallel. The top surface of the guide frame 252 is a stepped surface. The adsorption element 253 is installed on the inner end of the tray base plate 251. The outer end of the tray base plate 251 is the entry end of the tray 26. The two sides of the tray 26 have stepped surfaces. The stepped surfaces of the tray 26 abut against the stepped surface of the top surface of the tray frame 25. After the tray 26 is inserted from the entry end of the tray base plate 251, the insertion end of the tray 26 will be adsorbed by the adsorption element 253.

[0026] like Figure 6As shown, in a second embodiment of the pressing mechanism 22: the pressing mechanism 22' includes a pressing cylinder (or electric cylinder) 221', a guide rod 224', and a linear bearing 225'; the cylinder body of the pressing cylinder 221' is fixed on the testing frame 21', the piston rod end of the pressing cylinder 221' is connected to the testing frame 231' of the upper testing module 23', and the outer side of the testing frame 231' of the upper testing module 23' is movably sleeved on the guide rod 224' through the linear bearing 225' and can move up and down along the guide rod 224'.

[0027] The working principle of this utility model:

[0028] like Figures 1-3 As shown, during testing, multiple button batteries 100 to be tested are placed in the slots of tray 26. The tray 26 containing the multiple button batteries 100 is inserted from the tray frame 25. The pressing mechanism 22 is driven, and the pressing mechanism 22 presses the upper detection module 23 downward until the composite probe 234 on the upper detection module 23 presses against the top surface of the button battery 100. The pressing continues, causing the tray frame 25 to move down along the guide post 28 until the composite probe on the lower detection module 24 touches the bottom surface of the button battery 100 for testing. The test data is obtained. After the test is completed, the pressing mechanism 22 is released, and the composite probe 234 on the upper detection module 23 on the pressing mechanism 22 separates from the top surface of the button battery 100. The tray frame 25 is detached from the bottom surface of the button battery 100 under the spring force of the tray frame spring 27. Then the tray 26 is taken out.

[0029] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model should still fall within the scope of the patent of the present utility model.

Claims

1. A button battery charge / discharge testing device, characterized in that: The detection mechanism comprises a detection frame, a pressing mechanism, an upper detection module, a lower detection module, a tray frame, a tray, and a tray frame spring; the detection frame is installed on a partition plate in the box body, the pressing mechanism is installed on the detection frame, the upper detection module is installed at the middle part of the pressing mechanism and above the tray frame, the pressing mechanism can drive the upper detection module to move up and down, the periphery of the tray frame is sleeved on the guide column, the lower end of the guide column is fixed on the lower detection module, the tray frame spring is sleeved on the guide column and the two ends of the tray frame spring abut against the tray frame and the lower detection module respectively, the tray for placing the button cell is arranged on the tray frame and directly below the upper detection module, and the lower detection module is installed on the detection frame and below the tray frame.

2. The charging and discharging test device for button cell batteries according to claim 1, characterized in that: The upper detection module and the lower detection module are of the same structure; the upper detection module comprises a detection frame, a plurality of terminal tables, a plurality of PCB boards, and a plurality of composite probes; the top surface of the detection frame is connected with the pressing mechanism, the plurality of terminal tables are fixedly installed side by side on the side wall of the detection frame so as to be externally connected with data lines, the outer ends of the plurality of PCB boards are connected with the plurality of terminal tables respectively, and the upper ends of the plurality of composite probes are fixed on the plurality of PCB boards respectively, and the lower ends of the composite probes extend to the tray.

3. The device of claim 1, wherein: The pressing mechanism comprises a pressing seat, a pressing rod, a handle, a guide rod, and a linear bearing; the pressing seat is fixed on the detection frame, the pressing rod is movably arranged on the pressing seat, the lower end of the pressing rod is connected with the detection frame of the upper detection module, the handle is hinged on the top of the pressing rod and the middle part of the handle is hinged on the pressing seat, and the outer side of the detection frame of the upper detection module is movably sleeved on the guide rod through the linear bearing and can move up and down along the guide rod.

4. The device of claim 1, wherein: The pressing mechanism comprises a pressing cylinder, a guide rod, and a linear bearing; the cylinder body of the pressing cylinder is fixed on the detection frame, the rod end of the piston rod of the pressing cylinder is connected with the detection frame of the upper detection module, and the outer side of the detection frame of the upper detection module is movably sleeved on the guide rod through the linear bearing and can move up and down along the guide rod.

5. The device of claim 1, wherein: The tray frame comprises a tray bottom plate, two guide frames, and a suction accessory; the tray bottom plate is movably sleeved on the guide column, the two guide frames are installed on the two sides of the tray bottom plate and are arranged in parallel, the top surface of the guide frame is a stepped surface, the suction accessory is installed on the inner end of the tray bottom plate, and the outer end of the tray bottom plate is the entering end of the tray; the two sides of the tray have stepped surfaces, the stepped surfaces of the tray abut against the stepped surface of the top surface of the tray frame, and the insertion end of the tray is adsorbed by the suction accessory after the tray is inserted from the entering end of the tray bottom plate.

6. The device of claim 1, wherein: The box body and a plurality of detection mechanisms are further included; the plurality of detection mechanisms are installed in the box body.

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