Testing device for energy storage battery cell

Abstract

The utility model relates to the technical field of energy storage battery testing, and discloses a testing device for an energy storage battery cell, which comprises a movable plate, the outer side of the upper end of the movable plate is fixedly connected with a fixed seat, and the upper part of the fixed seat is rotatably connected with a connecting rod and a pull rod. The inner ends of the connecting rods are fixedly connected with supporting rods, and the inner ends of the supporting rods are fixedly connected with contact pieces. According to the utility model, the motor drives the rotating shaft and the gear to rotate, so that the rack plate moves towards the inner side, the clamping seat and the rubber pad clamp the bottoms of the left end and the right end of the energy storage battery cell, and the bottom end of the contact piece moves to be located above the positive electrode and the negative electrode of the energy storage battery cell to be in contact with the positive electrode and the negative electrode of the energy storage battery cell; the tiger pliers do not need to be manually clamped at the positions of the positive electrode and the negative electrode of the energy storage battery cell, the working efficiency is improved, and meanwhile the situation that detection current and voltage data are not accurate due to the fact that the contact pieces are loosened is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage battery test technical field especially relates to a kind of testing device for energy storage battery cell. BACKGROUND

[0002] Energy storage refers to the process of storing energy through medium or equipment and releasing it when needed, which realizes the matching of energy production and consumption in time and space through flexible charging and discharging control, and relies on flexibility. Energy storage battery cell is mainly used for energy storage and release. However, the capacity of energy storage cell increases with the increase of capacity, accompanied by risks such as thermal management and overall efficiency. Since the increase of capacity increases the risk of cell out of control, the safety characteristics of lithium iron phosphate battery have limitations. Small ampere-hour batteries are relatively safe, but when the capacity reaches 320Ah, the internal temperature of the cell will exceed 800℃, which is higher than the decomposition temperature of lithium iron phosphate. This puts higher requirements on the body, process and fire safety. Secondly, the scaling of large-capacity cells challenges other links of the industry chain. In terms of production and manufacturing, the increase of capacity puts new requirements on design capacity, production equipment and manufacturing process. Ensuring the safety and efficiency of each link is the key to production line upgrade. Whether the production capacity optimization speed of the production link can meet the requirements of cell capacity upgrade remains to be considered. In addition, in terms of performance, the increase of cell capacity and volume will lead to an increase in operating temperature, affecting the cycle life of the cell, and will also cause poor heat dissipation performance and cell swelling, increasing the difficulty of consistency control. Therefore, after the production and manufacturing of energy storage battery cell, the battery cell needs to be tested to ensure the safety performance and service life of the energy storage battery.

[0003] Most of the existing energy storage battery cells are placed on the detection device during detection, and then the positive and negative electrodes of the battery cell are connected, and the voltage and current of the energy storage battery cell are detected to determine whether the generation of the energy storage battery cell meets the generation requirements. However, when connecting the positive and negative electrodes of the battery cell, the tiger head clamp needs to be manually clamped, which reduces the work efficiency and causes inaccurate detection current and voltage data due to loose connection during detection. Therefore, a testing device for energy storage battery cell is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a testing device for energy storage battery cell.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of testing device for energy storage battery cell, including fixing frame, the rear side left and right ends of the fixing frame are fixedly connected with motor, the rotating shaft of the motor is fixedly connected with rotating shaft, the outer side front end of the rotating shaft is fixedly connected with gear, the upper end of the gear is engaged with rack plate, the upper end of the rack plate is fixedly connected with moving plate, the upper end of the inner side of the moving plate is fixedly connected with clamping seat, the outer side of the upper end of the moving plate is fixedly connected with fixed seat, the upper portion of the fixed seat is rotatably connected with connecting rod and pull rod, the pull rod is rotatably connected with the connecting rod, the inner end of the connecting rod is fixedly connected with support rod, the inner end of the support rod is fixedly connected with contact piece;

[0007] Through the above technical scheme, the rotating shaft and the gear are driven to rotate by the left and right motors, the gear drives the rack plate to move inward, the clamping seat and the rubber pad move with the rack plate, the left and right ends of the energy storage battery cell are clamped, the bottom end position of the contact piece is located above the positive and negative poles of the energy storage battery cell, the support rod is pulled, the bottom end of the contact piece is in contact with the positive and negative poles of the energy storage battery cell under the action of the connecting rod connected to the fixed seat, the vice is not manually clamped at the positive and negative poles of the energy storage battery cell, the working efficiency is increased, and the contact piece will not loosen to cause inaccurate detection of current and voltage data.

[0008] Further, the inner left and right ends of the fixing frame are fixedly connected with a base, the upper ends of the base are fixedly connected with rotating support sleeves, and the front ends of the rotating shafts are rotatably connected to the inner sides of the rotating support sleeves, respectively.

[0009] Through the above technical scheme, the rotating shaft is conveniently supported, and the friction of the front end of the rotating shaft is reduced.

[0010] Further, the upper portions of the contact pieces are inserted with plug-in connectors.

[0011] Through the above technical scheme, the plug-in connectors are in communication with the voltage and current detection device to detect the voltage and current of the energy storage battery cell, and the convenience of the communication detection device is increased.

[0012] Further, the middle portion of the fixing frame is fixedly connected with a support plate.

[0013] Through the above technical scheme, the energy storage battery cell is conveniently placed on the upper middle portion of the fixing frame.

[0014] Further, the inner ends of the clamping seats are fixedly connected with rubber pads.

[0015] Through the above technical scheme, the stability of clamping the energy storage battery cell is increased, sliding is prevented, and the shell of the energy storage battery cell can be protected to prevent scratches.

[0016] Further, the inner side of the fixed frame is fixedly connected with a sliding rod, and the bottom of the moving plate is slidably connected with the outer side of the sliding rod;

[0017] Through the above technical scheme, the stability and directionality of the moving plate during movement are improved, and the moving plate is supported.

[0018] The utility model has the advantages of:

[0019] In the utility model, first, the energy storage battery cell is placed on the upper part of the supporting plate, then the rotating shaft and the gear are driven to rotate by the motors on the left and right sides, the gear drives the rack plate to move inward, the clamping seat and the rubber pad move together, the left and right ends of the energy storage battery cell are clamped, the stability of the energy storage battery cell is improved, then the fixed seat, the connecting rod, the pull rod and the supporting rod move together with the moving plate, the bottom end of the contact piece is above the positive and negative poles of the energy storage battery cell, the pull rod is pulled, the supporting rod rotates on the upper end of the fixed seat under the action of the connecting rod, the bottom end of the contact piece contacts the positive and negative poles of the energy storage battery cell, finally, the plug connector is plugged above the contact piece, the plug connector is connected with the voltage and current detection device, the voltage and current of the energy storage battery cell are detected, the locking force of the locking pliers is not needed, the work efficiency is improved, and the contact piece cannot be loosened to cause inaccurate detection of the current and voltage data. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model provides a kind of front side three-dimensional structure schematic diagram for the testing device of energy storage battery cell;

[0021] Figure 2 The utility model provides a kind of rear side three-dimensional structure schematic diagram for the testing device of energy storage battery cell;

[0022] Figure 3 The utility model provides a kind of gear, rack plate and rotating support seat three-dimensional structure schematic diagram for the testing device of energy storage battery cell;

[0023] Figure 4 The utility model provides a kind of fixed seat, connecting rod, pull rod and supporting rod three-dimensional structure schematic diagram for the testing device of energy storage battery cell;

[0024] Figure 5 The utility model provides a kind of fixed frame, supporting plate and base three-dimensional structure schematic diagram for the testing device of energy storage battery cell.

[0025] LEGEND:

[0026] 1, fixed frame; 2, motor; 3, rotating shaft; 4, gear; 5, rack plate; 6, moving plate; 7, clamping seat; 8, fixed seat; 9, connecting rod; 10, pull rod; 11, support rod; 12, contact; 13, base; 14, rotating support sleeve; 15, plug; 16, support plate; 17, rubber pad; 18, sliding rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Reference Figures 1-5 An embodiment provided by the utility model: a kind of testing device for energy storage battery cell, including fixed frame 1, the rear side left and right ends of fixed frame 1 are fixedly connected with motor 2, the rotating shaft of motor 2 is fixedly connected with rotating shaft 3, the outer side front end of rotating shaft 3 is fixedly connected with gear 4, the upper end of gear 4 is engaged and is provided with rack plate 5, the upper end of rack plate 5 is fixedly connected with moving plate 6, the upper end of moving plate 6 is fixedly connected with clamping seat 7 on one side close to inside, the upper end of moving plate 6 is fixedly connected with fixed seat 8 on one side close to outside, the upper portion of fixed seat 8 is rotatably connected with connecting rod 9 and pull rod 10, pull rod 10 and connecting rod 9 are rotatably connected with each other, the inside one end of connecting rod 9 is fixedly connected with support rod 11, the inside one end of support rod 11 is fixedly connected with contact 12.

[0029] The inside left and right ends of fixed frame 1 are fixedly connected with base 13, the upper end of base 13 is fixedly connected with rotating support sleeve 14, the front end of rotating shaft 3 is rotatably connected on the inside of corresponding rotating support sleeve 14 respectively, to facilitate the supporting effect of rotating shaft 3, while reducing the friction of rotating shaft 3 front end rotation, the upper portion of contact 12 is inserted with plug 15, plug 15 is communicated with voltage and current detection device, to detect the voltage and current of energy storage battery cell, to increase the convenience of communication detection device, the middle part of fixed frame 1 is fixedly connected with support plate 16, to facilitate energy storage battery cell to be placed in the upper end middle part of fixed frame 1, the inside one end of clamping seat 7 is fixedly connected with rubber pad 17, to increase the stability of clamping energy storage battery cell, to prevent sliding, while being able to protect the shell of energy storage battery cell, to prevent scratch, the inside front and back ends of fixed frame 1 are fixedly connected with sliding rod 18, the bottom four corners of moving plate 6 are slidably connected on the outside of corresponding sliding rod 18 respectively, to increase the stability and directivity of moving plate 6 in moving process, while supporting moving plate 6.

[0030] Working principle: first, the energy storage battery cell is placed on the upper part of the support plate 16, then the rotating shaft 3 and the gear 4 are driven to rotate by the motor 2 on the left and right sides, the gear 4 drives the rack plate 5 to move inward, the clamping seat 7 and the rubber pad 17 follow the movement, the left and right ends of the energy storage battery cell are clamped, the stability of the energy storage battery cell is increased, second, the fixed seat 8, the connecting rod 9, the pull rod 10 and the support rod 11 follow the movement of the moving plate 6, the bottom end position of the contact piece 12 is moved above the positive and negative poles of the energy storage battery cell, the pull rod 10 is pulled, the support rod 11 is rotated under the action of the connecting rod 9 connected to the upper end of the fixed seat 8, the bottom end of the contact piece 12 is in contact with the positive and negative poles of the energy storage battery cell, finally, the plug-in connector 15 is plugged into the upper part of the contact piece 12.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A testing device for energy storage battery cells, comprising a fixing frame (1), characterized in that: The rear left and right ends of the fixed frame (1) are fixedly connected with motors (2), the rotating shafts of the motors (2) are fixedly connected with rotating shafts (3), the outer side front ends of the rotating shafts (3) are fixedly connected with gear wheels (4), the upper ends of the gear wheels (4) are meshingly provided with rack plates (5), the upper ends of the rack plates (5) are fixedly connected with moving plates (6), the upper end inner sides of the moving plates (6) are fixedly connected with clamping seats (7), the upper end outer sides of the moving plates (6) are fixedly connected with fixed seats (8), the upper parts of the fixed seats (8) are rotatably connected with connecting rods (9) and pull rods (10), the pull rods (10) and the connecting rods (9) are rotatably connected with each other, the inner ends of the connecting rods (9) are fixedly connected with supporting rods (11), the inner ends of the supporting rods (11) are fixedly connected with contact pieces (12).

2. The testing device for energy storage battery cells of claim 1, wherein: The inner left and right ends of the fixed frame (1) are fixedly connected with bases (13), the upper ends of the bases (13) are fixedly connected with rotating support sleeves (14), the front ends of the rotating shafts (3) are rotatably connected to the inner sides of the rotating support sleeves (14) respectively.

3. The testing device for energy storage battery cells of claim 1, wherein: The upper parts of the contact pieces (12) are inserted with plug-in heads (15).

4. The testing device for energy storage battery cells of claim 1, wherein: The middle part of the fixed frame (1) is fixedly connected with a supporting plate (16).

5. The testing device for energy storage battery cells of claim 1, wherein: The inner ends of the clamping seats (7) are fixedly connected with rubber pads (17).

6. The testing device for energy storage battery cells of claim 1, wherein: The inner side front and rear ends of the fixed frame (1) are fixedly connected with sliding rods (18), the bottoms of the moving plates (6) are slidingly connected to the outer sides of the sliding rods (18) respectively.

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