Soft-pack power lithium-ion battery automatic OCV test equipment

Abstract

The automatic OCV test equipment for soft-pack power lithium-ion batteries includes: a frame for installing working parts; a motion mechanism unit, which is arranged in the mounting cavity of the frame, including a probe plate assembly and a motion mechanism; a tray conveying unit, which is used to place the tray and convey the tray to the tray conveying line outside the frame; a battery tray; an OCV test unit, which is used to collect the OCV parameters of the soft-pack power lithium-ion battery to be tested; and a controller, which is arranged in the mounting cavity of the frame, and the control ends of the motion mechanism unit and the tray conveying unit are electrically connected to the corresponding pins of the controller; the signal output end of the motion mechanism unit is electrically connected to the OCV test unit, and the signal output end of the controller is signal-connected to the signal input end of an external server. The beneficial effects of the present invention are embodied in that the automatic OCV test equipment for soft-pack power lithium-ion batteries is compatible with a variety of battery sizes, improves the efficiency of automated production, realizes the automatic detection of battery OCV parameters, and is simple to operate.

Description

Technical Field

[0001] The invention relates to automatic OCV testing equipment for soft-pack power lithium-ion batteries. Background Art

[0002] After the soft-pack power lithium-ion battery is divided into components (there is a barcode on the surface of the soft-pack power lithium-ion battery), it is necessary to perform an OCV (Open Circuit Voltage) test to obtain the K value, current, voltage, capacitance and other parameters of the soft-pack power lithium-ion battery, so as to sort out the batteries with unqualified parameters to ensure the quality of the finished battery. In traditional technology, the OCV test process is completed manually, which will lead to the following disadvantages: First, a single device cannot automatically be compatible with batteries of various sizes. The production of new size batteries requires the customization of new equipment, which is not only expensive, but also occupies a large area; second, since the various operation processes cannot be completed in one go, the stability and production efficiency of the battery test are negatively affected; third, a lot of labor is required in the connection process of each process, which increases production costs, and this process also has an adverse effect on battery quality. Summary of the invention

[0003] In order to solve the above problems, the present invention provides an automatic OCV testing device for soft-pack power lithium-ion batteries which is easy to operate, accurate in testing, and automatically compatible with various battery sizes.

[0004] The automatic OCV testing equipment for soft-pack power lithium-ion batteries of the present invention is characterized by comprising:

[0005] The frame has an installation cavity, and a plurality of installation stations are arranged in the installation cavity for installing working parts;

[0006] The motion mechanism unit is arranged in the installation cavity of the frame, and includes a probe plate assembly and a motion mechanism, wherein the clamping part of the motion mechanism is installed on the motion part of the motion mechanism and moves with the movement of the corresponding motion part; a battery tray clamping space is reserved between two oppositely arranged clamping parts, which is used to clamp the positive and negative electrode ears of the soft-pack power battery installed in the battery tray; the probe plate assembly is installed on the side of each clamping part facing the storage space, and the probe of the probe plate assembly faces the battery tray, which is used to drive the probe on the probe plate assembly to contact and connect with the positive and negative electrodes of the battery in the tray;

[0007] A pallet conveying unit is disposed at the bottom of the battery pallet clamping space of the rack, and is used to place the pallet and convey the pallet to a pallet conveying line outside the rack;

[0008] A battery tray is installed in the battery tray clamping space, and is provided with a battery placement cavity for placing a soft-pack power battery, and a side of the battery placement cavity facing the clamping portion is provided with a hollow hole for exposing the positive and negative electrode tabs of the soft-pack power battery;

[0009] The OCV test unit is arranged in the mounting cavity of the rack and is used to collect the OCV parameters of the soft-pack power lithium-ion battery to be tested;

[0010] And a controller is arranged in the installation cavity of the frame, the control ends of the motion mechanism unit and the tray conveying unit are electrically connected to the corresponding pins of the controller; the signal output end of the motion mechanism unit is electrically connected to the OCV test unit, and the signal output end of the controller is signal-connected to the signal input end of the external server.

[0011] The frame is provided with a conveying area for installing a pallet conveying unit, a motion mechanism working area for installing a motion mechanism unit, and a collection area for installing an OCV test unit, and the conveying area is arranged directly below the motion mechanism working area.

[0012] The motion mechanism includes a base plate, a horizontally movable electric cylinder component for moving the probe to the battery tab position, a wire harness component and a control component. A horizontally arranged processing surface is provided at the bottom of the base plate, and two sets of horizontally movable electric cylinder components are symmetrically arranged on both sides of the processing surface, and the movable ends of the two sets of horizontally movable electric cylinder components are kept to move toward or in opposite directions, and the movable end of each set of the horizontally movable electric cylinder components is equipped with a probe plate assembly;

[0013] The probe plate assembly comprises probes for clamping the positive and negative electrode tabs of the soft-pack power lithium-ion battery and a probe clamping cylinder component for contacting and connecting the battery tabs with the probes, wherein the moving direction of the active end of the probe clamping cylinder component is perpendicular to the moving direction of the active end of the horizontally movable electric cylinder component; the probe plate assembly is installed on the side of the probe clamping cylinder component facing the battery tray, and the tab clamp of the probe plate assembly can be compressed or stretched along the axial direction of the tab clamp pressing cylinder component, so as to realize contacting and connecting the battery tabs with the probes while realizing the compression of the two;

[0014] The probe clamping cylinder component, the horizontal moving electric cylinder component, and the wire harness component are all signal-connected to the signal output end of the control component, and the signal input end of the control component is signal-connected to the corresponding signal output end of the battery OCV test unit, so as to realize the control of the probe clamping cylinder component, the horizontal moving electric cylinder component, and the wire harness component by the control component; the wire harness component is electrically connected to the power supply end of the controller, that is, the probe, the probe clamping cylinder component, the horizontal moving electric cylinder component, and the wire harness component are all controlled by the control component, and the wire harness component and the control component are electrically connected to the corresponding control ends of the controller respectively.

[0015] It also includes a scanning unit for scanning the information of the cylindrical lithium battery to be tested. The scanning unit is arranged in the installation cavity of the frame. The signal output end of the scanning unit is electrically connected to the signal input end of the controller. The movement distance of the horizontally moving electric cylinder component is controlled by the signal of the scanning unit to meet the testing of batteries of different sizes and realize automatic compatibility with multiple battery sizes.

[0016] The pallet conveying unit includes a lifting base plate, a pallet lifting cylinder component for lifting the pallet, a roller conveyor line for conveying the pallet, a pallet blocking block for blocking the pallet and a pallet positioning unit for positioning the pallet. The lifting base plate is installed in the conveying area of ​​the frame, the pallet lifting cylinder component is installed on the lifting base plate, the roller conveyor line and the pallet blocking block are installed on the pallet lifting cylinder component; the pallet positioning unit is installed on the roller conveyor line, the input end of the rolling conveyor line is connected to the front-end logistics, the pallet blocking block is installed at the end of the rolling conveyor line, and the control end of the pallet lifting cylinder component is electrically connected to the corresponding pin of the controller; the roller conveyor line includes an active roller and a plurality of passive rollers, and the active roller and the passive rollers are arranged in parallel in the conveying area of ​​the frame, wherein the active roller is connected to the front-end logistics as the input end of the rolling conveyor line.

[0017] The OCV test unit includes an internal resistance test meter for sampling the internal resistance parameters of the soft-pack power lithium-ion battery in the tray, a voltage test meter for sampling the voltage parameters of the soft-pack power lithium-ion battery in the tray, and a data processor for counting and processing the collected data. The signal input end of the internal resistance test meter and the signal input end of the voltage test meter are electrically connected to the probe of the motion mechanism unit respectively, the signal output end of the internal resistance test meter and the signal output end of the voltage test meter are electrically connected to the signal input end of the data processor respectively, and the signal output end of the data processor is electrically connected to the signal input end of the controller.

[0018] The tray includes a base, an outer frame and a tray lining, wherein the bottom of the outer frame is fixed to the base so that the outer frame and the base form a battery placement cavity for holding soft-pack lithium batteries; the two opposite side surfaces of the outer frame are provided with hollow holes for the soft-pack lithium battery ears to extend out; the tray lining is laid on the surface of the base, and the surface of the tray lining is provided with a plurality of placement positions for placing soft-pack power batteries and matching the shape and size of the soft-pack power batteries, the soft-pack power batteries are placed vertically on the placement positions, and the ears of the soft-pack power batteries are kept extended to the left and right so that they can cooperate with the ear clamps of the motion mechanism.

[0019] The battery tray is a stackable turnover box formed by a mold of flame-retardant material. The battery tabs extend out from the empty spaces on the left and right sides of the tray, and the tabs will not be touched during the turnover transportation process.

[0020] The tray is also provided with a tray barcode for storing battery information.

[0021] Working process: After the pallet conveying unit receives the command from the controller, the active roller of the roller conveyor line rotates, driving the passive roller of the roller conveyor line. The pallet, driven by the active roller and several passive rollers, stops after hitting the pallet blocking block, and the active roller stops rotating; the pallet blocking block blocks the pallet, and after detecting that the pallet is in place, the pallet positioning unit works to accurately position the pallet; the pallet barcode scanning unit scans the pallet barcode for judgment; after the pallet conveying unit receives the instruction from the controller to transport the pallet to the motion mechanism unit, the pallet lifting cylinder component moves, and uses its internal structure to push the pallet to the motion mechanism unit; the motion mechanism unit receives the pallet request information from the pallet conveying unit After that, the horizontal moving electric cylinder component in the motion mechanism unit is activated to move the probe to the battery ear position, and then the probe clamping cylinder component starts working, driving the probe to contact the positive and negative pole ears of the battery in the tray; the OCV test unit samples the internal resistance and voltage parameters of the soft-pack power lithium-ion battery in the tray, and transmits the internal resistance and voltage parameters to the server; after the OCV test unit completes the test, it instructs the probe clamping cylinder component in the motion mechanism unit to open the probe, and the horizontal moving electric cylinder component moves back to its position; the lifting cylinder component returns to its position, the tray positioning unit releases the tray, and the tray conveying unit pushes the tray out of the soft-pack power lithium-ion battery automatic OCV testing equipment after receiving the command.

[0022] The beneficial effects of the present invention are as follows: the automatic OCV testing equipment for soft-pack power lithium-ion batteries is compatible with a variety of battery sizes, improves automated production efficiency, realizes automatic detection of battery OCV parameters, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1a It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 1b It is the front view of the present invention.

[0025] Figure 1c It is a rear view of the present invention.

[0026] Figure 1d It is a left side view of the present invention.

[0027] Figure 1e It is a right side view of the present invention.

[0028] Figure 1f It is a top view of the present invention.

[0029] Figure 2a It is a structural diagram of the motion mechanism unit of the present invention.

[0030] Figure 2b It is a front view of the motion mechanism unit of the present invention.

[0031] Figure 2c It is a right side view of the motion mechanism unit of the present invention.

[0032] Figure 2d It is a top view of the motion mechanism unit of the present invention.

[0033] Figure 2e It is a bottom view of the motion mechanism unit of the present invention.

[0034] Figure 3a It is a structural diagram of a tray of the present invention (double layer).

[0035] Figure 3b It is a structural diagram of a tray of the present invention (single layer).

[0036] Figure 4a It is a structural diagram of the pallet conveying unit of the present invention.

[0037] Figure 4b It is a front view of the pallet conveying unit of the present invention.

[0038] Figure 4c It is a right side view of the tray conveying unit of the present invention.

[0039] Figure 4d 1 is a top view of the tray conveying unit of the present invention.

[0040] Figure 5a It is a schematic diagram of the positions of the tray conveying unit and the battery tray of the present invention.

[0041] Figure 5b It is a side view of the position of the tray conveying unit and the battery tray of the present invention.

[0042] Figure 5c It is a top view of the position of the tray conveying unit and the battery tray of the present invention. DETAILED DESCRIPTION

[0043] The present invention is further described below in conjunction with the accompanying drawings.

[0044] Refer to the attached figure:

[0045] Embodiment 1 The automatic OCV testing device for soft-pack power lithium-ion batteries of the present invention comprises:

[0046] The frame 1 has an installation cavity, and a plurality of installation stations are arranged in the installation cavity for installing working parts;

[0047] The motion mechanism unit 2 is arranged in the installation cavity of the frame, and includes a probe plate assembly and a motion mechanism, wherein the clamping part of the motion mechanism is installed on the motion part of the motion mechanism and moves with the movement of the corresponding motion part; a battery tray clamping space is reserved between two oppositely arranged clamping parts, which is used to clamp the positive and negative electrode ears of the soft-pack power battery installed in the battery tray; the probe plate assembly is installed on the side of each clamping part facing the storage space, and the probe of the probe plate assembly faces the battery tray, which is used to drive the probe on the probe plate assembly to contact and connect with the positive and negative electrodes of the battery in the tray;

[0048] The tray conveying unit 4 is arranged at the bottom of the battery tray clamping space of the rack, and is used to place the tray and convey the tray to the tray conveying line outside the rack;

[0049] The battery tray 3 is installed in the battery tray clamping space and is provided with a battery placement cavity for placing the soft-pack power battery. The side of the battery placement cavity facing the clamping portion is provided with hollow holes for exposing the positive and negative electrode tabs of the soft-pack power battery.

[0050] The OCV test unit 6 is arranged in the mounting cavity of the rack and is used to collect the OCV parameters of the soft-pack power lithium-ion battery to be tested;

[0051] And the controller 7 is arranged in the installation cavity of the frame 1, and the control ends of the motion mechanism unit 2 and the tray conveying unit 4 are electrically connected to the corresponding pins of the controller 7; the signal output end of the motion mechanism unit 2 is electrically connected to the OCV test unit 6, and the signal output end of the controller 7 is signal-connected to the signal input end of the external server.

[0052] The frame 1 is provided with a conveying area for installing a pallet conveying unit, a motion mechanism working area for installing a motion mechanism unit, and a collection area for installing an OCV test unit. The conveying area is arranged directly below the motion mechanism working area.

[0053] The motion mechanism includes a base plate 21, a horizontally movable electric cylinder component 24 for moving the probe to the battery tab position, a wire harness component 25, and a control component. A horizontally arranged processing surface is provided at the bottom of the base plate 21, and two sets of horizontally movable electric cylinder components 24 are symmetrically arranged on both sides of the processing surface, and the movable ends of the two sets of horizontally movable electric cylinder components are kept to move toward or in opposite directions, and the movable end of each set of the horizontally movable electric cylinder components is equipped with a probe plate assembly;

[0054] The probe plate assembly includes a probe 22 for clamping the positive and negative electrode tabs of a soft-pack power lithium-ion battery and a probe clamping cylinder component 23 for contacting and connecting the battery tabs with the probes. The moving direction of the active end of the probe clamping cylinder component 23 is perpendicular to the moving direction of the active end of the horizontal moving electric cylinder component 24. The probe plate assembly is installed on the side of the probe clamping cylinder component 23 facing the battery tray 3, and the tab clamp of the probe plate assembly can be compressed or stretched along the axial direction of the tab clamp pressing cylinder component to achieve contact and connection between the battery tabs and the probes while achieving compression of the two.

[0055] The probe clamping cylinder component 23, the horizontal moving electric cylinder component 24, and the wire harness component 25 are all signal-connected to the signal output end of the control component, and the signal input end of the control component is signal-connected to the corresponding signal output end of the battery OCV test unit, so as to realize the control of the probe clamping cylinder component, the horizontal moving electric cylinder component, and the wire harness component by the control component; the wire harness component is electrically connected to the power supply end of the controller, that is, the probe, the probe clamping cylinder component, the horizontal moving electric cylinder component, and the wire harness component are all controlled by the control component, and the wire harness component and the control component are electrically connected to the corresponding control ends of the controller respectively.

[0056] The base plate 21 is the reference basic component of the entire motion mechanism 2. Under the action of the horizontal moving electric cylinder component 24, the left and right clamp probe components 23 move parallel to the center of the battery tray respectively, so that the positive and negative poles of the battery tabs 34 are located in the middle of the probe 22. After the probe clamping cylinder component 23 is actuated, the probe 22 is clamped.

[0057] It also includes a scanning unit 5 for scanning the information of the cylindrical lithium battery to be tested. The scanning unit is arranged in the installation cavity of the frame. The signal output end of the scanning unit is electrically connected to the signal input end of the controller. The movement distance of the horizontally moving electric cylinder component is controlled by the signal of the scanning unit to meet the testing of batteries of different sizes and realize automatic compatibility with multiple battery sizes.

[0058] The pallet conveying unit 4 includes a lifting base plate 41, a pallet lifting cylinder component 42 for lifting the pallet, a roller conveyor line 43 for conveying the pallet, a pallet blocking block 44 for blocking the pallet, and a pallet positioning unit 45 for positioning the pallet. The lifting base plate 41 is installed in the conveying area of ​​the frame, the pallet lifting cylinder component 42 is installed on the lifting base plate 41, the roller conveyor line 43 and the pallet blocking block 44 are installed on the pallet lifting cylinder component 42; the pallet positioning unit 45 is installed on the roller conveyor line 43, the input end of the rolling conveyor line 43 is connected to the front-end logistics, the pallet blocking block 44 is installed at the end of the rolling conveyor line, and the control end of the pallet lifting cylinder component 42 is electrically connected to the corresponding pin of the controller 7; the roller conveyor line 43 includes an active roller and a plurality of passive rollers, and the active roller and the passive roller are arranged in parallel in the conveying area of ​​the frame, wherein the active roller is connected to the front-end logistics as the input end of the rolling conveyor line.

[0059] The OCV test unit 6 includes an internal resistance test meter for sampling the internal resistance parameters of the soft-pack power lithium-ion battery in the tray, a voltage test meter for sampling the voltage parameters of the soft-pack power lithium-ion battery in the tray, and a data processor for counting and processing the collected data. The signal input end of the internal resistance test meter and the signal input end of the voltage test meter are electrically connected to the probe of the motion mechanism unit, respectively, and the signal output end of the internal resistance test meter and the signal output end of the voltage test meter are electrically connected to the signal input end of the data processor, and the signal output end of the data processor is electrically connected to the signal input end of the controller.

[0060] The battery tray 3 includes a base 31, an outer frame 35 and a tray lining 32, wherein the bottom of the outer frame 35 is fixed to the base, so that the outer frame 35 and the base form a battery placement cavity for holding the soft-pack lithium battery 33; the two opposite side surfaces of the outer frame 35 are provided with hollow holes for the soft-pack lithium battery ears to extend out; the tray lining 32 is laid on the surface of the base, and the surface of the tray lining is provided with a plurality of placement positions for placing the soft-pack power battery and matching the shape and size of the soft-pack power battery. The soft-pack power battery is placed vertically on the placement position, and the ears 34 of the soft-pack power battery are kept extended to the left and right so that they can cooperate with the ear clamps of the motion mechanism.

[0061] The battery tray is a stackable turnover box formed by a mold of flame-retardant material. The battery tabs extend out from the empty spaces on the left and right sides of the tray, and the tabs will not be touched during the turnover transportation process.

[0062] The tray is also provided with a tray barcode for storing battery information.

[0063] Working process: After receiving the command from the controller, the active roller of the tray conveying unit 4 rotates to drive the passive roller. The tray 3, driven by the active roller and several passive rollers, stops after hitting the tray blocking block 44, and the active roller stops rotating; the tray blocking block 44 blocks the tray, and after detecting that the tray 3 is in place, the tray positioning unit 45 works to accurately position the tray 3. The tray barcode scanning unit 5 scans the pallet barcode for judgment; after the tray conveying unit 4 receives the instruction from the controller to transport the tray to the motion mechanism 3 unit, the tray lifting cylinder component 42 moves, and uses its internal structure to push the tray to the motion mechanism unit 2. After the motion mechanism unit 2 receives the tray request information from the tray conveying unit 4, the horizontal moving electric cylinder component 24 in the motion mechanism unit 2 moves, moves the probe 22 to the position of the battery pole ear 34, and then the probe clamping cylinder component 23 starts to work, driving the probe 22 to contact the positive and negative pole ears 34 of the battery in the tray. The OCV test unit samples the internal resistance and voltage parameters of the soft-pack power lithium-ion battery in the tray, and transmits the internal resistance and voltage parameters to the server. After the OCV test unit completes the test, it instructs the probe clamping cylinder component 23 in the motion mechanism unit 2 to open the probe, and the horizontal moving electric cylinder component 24 moves back to its original position. The lifting cylinder component 42 returns to its original position, and the tray positioning unit 45 releases the tray 3. After receiving the instruction, the tray conveying unit 4 pushes the tray 3 out of the soft-pack power lithium-ion battery automatic OCV test equipment.

[0064] The contents described in the embodiments of this specification are merely an enumeration of implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the present invention also includes equivalent technical means that can be thought of by those skilled in the art based on the inventive concept.

Claims

1. Soft-pack power lithium-ion battery automatic OCV test equipment, characterized in that: include: The frame has an installation cavity, and a plurality of installation stations are arranged in the installation cavity for installing working parts; The motion mechanism unit is arranged in the installation cavity of the frame, and includes a probe plate assembly and a motion mechanism, wherein the clamping part of the motion mechanism is installed on the motion part of the motion mechanism and moves with the movement of the corresponding motion part; a battery tray clamping space is reserved between two oppositely arranged clamping parts, which is used to clamp the positive and negative electrode ears of the soft-pack power battery installed in the battery tray; the probe plate assembly is installed on the side of each clamping part facing the storage space, and the probe of the probe plate assembly faces the battery tray, which is used to drive the probe on the probe plate assembly to contact and connect with the positive and negative electrodes of the battery in the tray; A pallet conveying unit is disposed at the bottom of the battery pallet clamping space of the rack, and is used to place the pallet and convey the pallet to a pallet conveying line outside the rack; A battery tray is installed in the battery tray clamping space, and is provided with a battery placement cavity for placing a soft-pack power battery, and a side of the battery placement cavity facing the clamping portion is provided with a hollow hole for exposing the positive and negative electrode tabs of the soft-pack power battery; The OCV test unit is arranged in the mounting cavity of the rack and is used to collect the OCV parameters of the soft-pack power lithium-ion battery to be tested; and a controller, which is arranged in the mounting cavity of the frame, wherein the control ends of the motion mechanism unit and the tray conveying unit are electrically connected to the corresponding pins of the controller; the signal output end of the motion mechanism unit is electrically connected to the OCV test unit, and the signal output end of the controller is signal-connected to the signal input end of the external server; The motion mechanism includes a base plate, a horizontally movable electric cylinder component for moving the probe to the battery tab position, a wire harness component and a control component. A horizontally arranged processing surface is provided at the bottom of the base plate, and two sets of horizontally movable electric cylinder components are symmetrically arranged on both sides of the processing surface, and the movable ends of the two sets of horizontally movable electric cylinder components are kept to move toward or in opposite directions, and the movable end of each set of the horizontally movable electric cylinder components is equipped with a probe plate assembly; The probe plate assembly comprises probes for clamping the positive and negative electrode tabs of the soft-pack power lithium-ion battery and a probe clamping cylinder component for contacting and connecting the battery tabs with the probes, wherein the moving direction of the active end of the probe clamping cylinder component is perpendicular to the moving direction of the active end of the horizontally movable electric cylinder component; the probe plate assembly is installed on the side of the probe clamping cylinder component facing the battery tray, and the tab clamp of the probe plate assembly can be compressed or stretched along the axial direction of the tab clamp pressing cylinder component, so as to realize contacting and connecting the battery tabs with the probes while realizing the compression of the two; The probe clamping cylinder component, the horizontal moving electric cylinder component, and the wire harness component are all connected to the signal output end of the control component, and the signal input end of the control component is connected to the corresponding signal output end of the battery OCV test unit, so that the control component controls the probe clamping cylinder component, the horizontal moving electric cylinder component, and the wire harness component; the wire harness component is electrically connected to the power supply end of the controller, that is, the probe, the probe clamping cylinder component, the horizontal moving electric cylinder component, and the wire harness component are all controlled by the control component, and the wire harness component and the control component are electrically connected to the corresponding control ends of the controller respectively; The automatic OCV test equipment for soft-pack power lithium-ion batteries also includes a code scanning unit for scanning information of the cylindrical lithium battery to be tested. The code scanning unit is arranged in the mounting cavity of the frame. The signal output end of the code scanning unit is electrically connected to the signal input end of the controller. The signal of the code scanning unit is used to control the movement distance of the horizontal moving electric cylinder component to meet the test of batteries of different sizes and realize automatic compatibility with multiple battery sizes. The OCV test unit includes an internal resistance test meter for sampling the internal resistance parameters of the soft-pack power lithium-ion battery in the tray, a voltage test meter for sampling the voltage parameters of the soft-pack power lithium-ion battery in the tray, and a data processor for counting and processing the collected data. The signal input end of the internal resistance test meter and the signal input end of the voltage test meter are electrically connected to the probe of the motion mechanism unit respectively, the signal output end of the internal resistance test meter and the signal output end of the voltage test meter are electrically connected to the signal input end of the data processor respectively, and the signal output end of the data processor is electrically connected to the signal input end of the controller.

2. The automatic OCV testing equipment for soft-pack power lithium-ion batteries according to claim 1, characterized in that: The frame is provided with a conveying area for installing a pallet conveying unit, a motion mechanism working area for installing a motion mechanism unit, and a collection area for installing an OCV test unit, and the conveying area is arranged directly below the motion mechanism working area.

3. The automatic OCV testing equipment for soft-pack power lithium-ion batteries according to claim 1, characterized in that: The pallet conveying unit includes a lifting base plate, a pallet lifting cylinder component for lifting the pallet, a roller conveyor line for conveying the pallet, a pallet blocking block for blocking the pallet and a pallet positioning unit for positioning the pallet, the lifting base plate is installed in the conveying area of ​​the frame, the pallet lifting cylinder component is installed on the lifting base plate, the roller conveyor line and the pallet blocking block are installed on the pallet lifting cylinder component; the pallet positioning unit is installed on the roller conveyor line, the input end of the roller conveyor line is connected to the front-end logistics, the pallet blocking block is installed at the end of the roller conveyor line, and the control end of the pallet lifting cylinder component is electrically connected to the corresponding pin of the controller; the roller conveyor line includes an active roller and a plurality of passive rollers, and the active roller and the passive rollers are arranged in parallel in the conveying area of ​​the frame, wherein the active roller is connected to the front-end logistics as the input end of the roller conveyor line.

4. The automatic OCV testing equipment for soft-pack power lithium-ion batteries according to claim 1, characterized in that: The tray includes a base, an outer frame and a tray lining, wherein the bottom of the outer frame is fixed to the base so that the outer frame and the base form a battery placement cavity for holding soft-pack lithium batteries; the two opposite side surfaces of the outer frame are provided with hollow holes for the soft-pack lithium battery ears to extend out; the tray lining is laid on the surface of the base, and the surface of the tray lining is provided with a plurality of placement positions for placing soft-pack power batteries and matching the shape and size of the soft-pack power batteries, the soft-pack power batteries are placed vertically on the placement positions, and the ears of the soft-pack power batteries are kept extended to the left and right so that they can cooperate with the ear clamps of the motion mechanism.

5. The automatic OCV testing equipment for soft-pack power lithium-ion batteries according to claim 4, characterized in that: The battery tray is a stackable turnover box formed by a mold of flame-retardant material. The battery tabs extend out from the empty spaces on the left and right sides of the tray, and the tabs will not be touched during the turnover transportation process.

6. The automatic OCV testing equipment for soft-pack power lithium-ion batteries according to claim 5, characterized in that: The tray is also provided with a tray barcode for storing battery information.

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