A blade battery cell multi-channel DCR tester

Abstract

The present invention provides a multi-channel DCR tester for blade cells in the field of DCR test equipment technology, comprising: a cabinet; a test carrier plate disposed in the cabinet; a mobile mechanism disposed on the test carrier plate; a positive electrode test mechanism disposed on the test carrier plate and located on one side of the mobile mechanism; a negative electrode test mechanism disposed on the test carrier plate and located on the other side of the mobile mechanism; a fan unit disposed on the cabinet; a switch disposed in the cabinet; an industrial computer disposed in the cabinet and respectively connected to the mobile mechanism, the positive electrode test mechanism, the negative electrode test mechanism, the fan unit, and the switch; and a power module disposed in the cabinet and respectively connected to the positive electrode test mechanism, the negative electrode test mechanism, the fan unit, a control module, and the industrial computer. The advantages of the present invention are: greatly reducing the cost of the DCR tester and greatly improving the test efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of DCR testing equipment, and in particular to a blade battery cell multi-channel DCR testing machine. Background Art

[0002] With the rapid development of new energy vehicles, the power batteries that serve as their power source have also developed rapidly. During the production process, the performance indicators of the battery cells that make up the power battery are controlled and achieved through various precision equipment. DCR testing equipment is used to test the DC internal resistance of battery cells. By performing high-power charge and discharge measurements on the battery cells, the internal resistance data is collected to determine whether the established performance indicators are met. Compared to traditional square-shell batteries, the terminals of blade batteries are located on both sides of the shell. Changing the probe from single-sided pressing to simultaneous double-sided pressing increases the complexity of DCR testing equipment.

[0003] The DCR test equipment used to perform DCR testing on blade cells is divided into a cut-disc type and a full-disc type. The cut-disc type means that a DCR test equipment has only one set of positive and negative probes, and the tray is moved by a moving mechanism to complete the step-by-step testing of all blade cells in the tray. Although this structure reduces the number of power supply chassis and simplifies the equipment wiring, the stroke is generally long, and a linear module is required to complete the movement of the tray. The cost of the linear module is high, resulting in a high cost for the cut-disc type DCR test equipment. The full-disc type means that all blade cells in the entire tray are equipped with a set of positive and negative probes. Although this structure can test each blade cell at the same time, the test efficiency is high, and the tray does not need to be moved, and there is no need to use a linear module, so the cost is low, but the number of probes is large, the number of power supplies increases, the power line layout is more difficult, the power lines are stacked, and the equipment generates a lot of heat, which affects the test efficiency.

[0004] Therefore, how to provide a blade cell multi-channel DCR tester to reduce the cost of the DCR tester and improve the test efficiency has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a blade battery cell multi-channel DCR tester to reduce the cost of the DCR tester and improve the test efficiency.

[0006] The present invention is implemented as follows: a blade battery cell multi-channel DCR tester, comprising:

[0007] A cabinet;

[0008] A test load board is provided in the cabinet;

[0009] a moving mechanism, disposed on the test carrying plate;

[0010] a positive electrode testing mechanism, provided on the testing carrier plate and located on one side of the moving mechanism;

[0011] a negative electrode testing mechanism, provided on the testing carrier plate and located on the other side of the moving mechanism;

[0012] A fan unit is provided on the cabinet;

[0013] A control module is arranged in the cabinet;

[0014] an industrial computer, disposed in the cabinet and connected to the moving mechanism, the positive electrode testing mechanism, the negative electrode testing mechanism, the fan unit, and the control module;

[0015] A power supply module is arranged in the cabinet and is respectively connected to the positive electrode testing mechanism, the negative electrode testing mechanism, the fan unit, the control module and the industrial computer.

[0016] Furthermore, the cabinet includes:

[0017] A lower frame with an acrylic door panel and a component placement panel;

[0018] An upper frame is arranged on the top of the lower frame and is symmetrically provided with two power line brackets, each of which is provided with a plurality of copper nose fixing blocks.

[0019] Furthermore, the test carrier plate includes:

[0020] The five bearing sub-plates form a rectangle. The middle bearing sub-plate is a 15 mm thick aluminum plate, and the remaining bearing sub-plates are 10 mm thick aluminum plates. The moving mechanism, positive electrode testing mechanism and negative electrode testing mechanism are arranged on the middle bearing sub-plate.

[0021] Furthermore, the moving mechanism includes:

[0022] A pair of slide rails are arranged parallel to the test bearing plate;

[0023] a movable bearing plate, slidably connected to the slide rail;

[0024] A translation cylinder is provided on the test carrier plate, a power output end is connected to the movable carrier plate, and a control end is connected to the industrial computer;

[0025] A roller assembly is arranged on the top of the movable carrying plate.

[0026] Furthermore, the positive electrode testing mechanism includes:

[0027] a positive electrode testing sub-mechanism, provided on the test carrying plate and located on one side of the moving mechanism;

[0028] Two anti-collision limit blocks are symmetrically arranged on the left and right sides of the moving end of the positive electrode testing sub-mechanism;

[0029] The negative electrode testing mechanism comprises:

[0030] a negative electrode testing sub-mechanism, provided on the test carrying plate and located on the other side of the moving mechanism;

[0031] a temperature probe module, disposed on the front side of the movable end of the negative electrode testing sub-mechanism;

[0032] The positive electrode testing sub-mechanism and the negative electrode testing sub-mechanism both include:

[0033] a pair of guide rails, arranged parallel to the test carrying plate;

[0034] a fixed plate, slidably connected to the guide rail;

[0035] A pressing cylinder is provided on the test bearing plate, with a power output end connected to the fixed plate, a control end connected to the industrial computer, and a pressing direction toward the moving mechanism;

[0036] A changeable screw assembly is provided at the top end of the fixed plate;

[0037] a current probe assembly, provided on the profile-changing lead screw assembly;

[0038] At least one anti-collision limit block, provided at the end of the guide rail;

[0039] At least one nylon limit block is provided at the bottom end of the fixed plate, and its position matches the anti-collision limit block;

[0040] The current probe assembly comprises:

[0041] A plurality of current probes are provided on the mold-changing screw assembly;

[0042] A plurality of current probe braided wires, each connected to one of the current probes;

[0043] One end of a plurality of probe copper noses is respectively connected to a current probe braided wire, and the other end is connected to the power module.

[0044] Furthermore, it also includes:

[0045] An air source triplex is arranged in the cabinet and is communicated with the air inlets of the translation cylinder and the pressing cylinder respectively.

[0046] Furthermore, the fan unit includes:

[0047] A plurality of air inlet fans are provided on the cabinet and connected to the industrial computer;

[0048] A plurality of air outlet fans are arranged on the cabinet and connected to the industrial computer.

[0049] Furthermore, the control module includes:

[0050] A display screen is provided on the cabinet and is connected to the industrial computer;

[0051] An operation panel, provided on the cabinet and connected to the industrial computer;

[0052] A card reader is provided on the cabinet and is connected to the industrial computer;

[0053] A keyboard is provided in the cabinet and is connected to the industrial computer;

[0054] A mouse is provided in the cabinet and connected to the industrial computer;

[0055] A network cable interface is provided on the cabinet and is connected to the industrial computer;

[0056] A main switch is provided on the cabinet and is connected to the industrial computer;

[0057] A switch is arranged in the cabinet and connected to the industrial computer.

[0058] Furthermore, the power module includes:

[0059] A power supply chassis is arranged in the cabinet;

[0060] A power strip is provided in the cabinet, one end of which is connected to the power supply chassis, and the other end of which is connected to the positive electrode test mechanism, the negative electrode test mechanism, the fan unit, the control module and the industrial computer;

[0061] A UPS uninterruptible power supply is arranged in the cabinet and connected to the industrial computer.

[0062] Furthermore, it also includes:

[0063] A barcode scanner, located in the cabinet and connected to the industrial computer;

[0064] An alarm light is arranged on the top of the cabinet and is connected to the industrial computer.

[0065] The advantages of the present invention are:

[0066] A moving mechanism is arranged in the cabinet, and a positive test mechanism and a negative test mechanism are arranged on the left and right sides of the moving mechanism respectively. The moving mechanism drives the moving carrier plate to slide on the slide rail through the translation cylinder, and then links the roller assembly to move, and the positive test mechanism and the negative test mechanism are both pressed and returned to their original position by the pressing cylinder. During the test, the tray loaded with blade batteries is transferred to the moving mechanism through the roller assembly, and then the positive test mechanism and the negative test mechanism press half of the blade batteries on the tray for DCR test. After the test is completed, the positive test mechanism and the negative test mechanism return to their original position, and the tray is linked to the translation cylinder for translation, and then the DCR test of the blade batteries on the other half of the tray is carried out. That is, a cut-disc test structure is adopted, and a translation cylinder is used instead of a traditional linear module to reduce costs. Compared with the full-disc type, the number of probes and power supplies is reduced, and the power lines are less stacked, which ultimately greatly reduces the cost of the DCR tester, reduces the temperature rise of the test, and improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0068] Figure 1 It is a structural schematic diagram of a blade battery cell multi-channel DCR tester of the present invention.

[0069] Figure 2 It is a structural schematic diagram of the upper frame of the present invention.

[0070] Figure 3 It is a structural schematic diagram of the lower frame of the present invention.

[0071] Figure 4 It is a side view of the lower frame of the present invention.

[0072] Figure 5 It is a rear view of the lower frame of the present invention.

[0073] Figure 6 It is a structural schematic diagram of the test bearing plate, moving mechanism and testing mechanism of the present invention.

[0074] Figure 7 It is a structural schematic diagram of the test carrier board of the present invention.

[0075] Figure 8 This is one of the structural diagrams of the negative electrode testing mechanism of the present invention.

[0076] Figure 9 This is the second structural diagram of the negative electrode testing mechanism of the present invention.

[0077] Figure 10 It is a structural schematic diagram of the positive electrode testing mechanism of the present invention.

[0078] Figure 11The present invention is a circuit principle block diagram of a blade battery cell multi-channel DCR tester.

[0079] Marking Description:

[0080] 100-A blade battery multi-channel DCR tester, 1-cabinet, 2-test carrier plate, 3-moving mechanism, 4-positive electrode test mechanism, 5-negative electrode test mechanism, 6-fan unit, 7-control module, 8-industrial computer, 9-power module, 10-air source triplex, 20-barcode scanner, 30-alarm light, 40-tray, 50-blade battery, 11-lower frame, 12-lower frame, 111-acrylic door panel, 112-component layout board, 121-power line bracket, 122-copper nose fixing block, 21-carrying sub-plate, 31-moving carrier plate, 32-translational cylinder, 33-roller assembly, 41-positive electrode test sub-plate, 42-anti- Collision limit block, 51-negative pole test sub-mechanism, 52-temperature probe module, 411-guide rail, 412-fixed plate, 413-pressing cylinder, 414-changing screw assembly, 415-current probe assembly, 416-anti-collision limit block, 417-nylon limit block, 4151-current probe, 4152-current probe braided wire, 4153-probe copper nose, 61-air inlet fan, 62-air outlet fan, 71-display, 72-operation panel, 73-card reader, 74-keyboard, 75-mouse, 76-network cable interface, 77-main switch, 78-switch, 91-power chassis, 92-power strip, 93-UPS uninterruptible power supply. DETAILED DESCRIPTION

[0081] The embodiment of the present invention provides a blade cell multi-channel DCR tester 100, which solves the technical problems in the prior art of high cost of cut-disc DCR test equipment and certain safety hazards of full-disc DCR test equipment. This greatly reduces the cost of the DCR tester and greatly improves the safety of the DCR tester.

[0082] The technical solution in the embodiments of the present invention is to solve the above-mentioned problems. The overall idea is as follows: a cut-disc test structure is adopted, and a translation cylinder 32 is used instead of a traditional linear module to reduce costs. Compared with the full-disc type, the number of probes and power supplies is reduced, the power lines are less stacked, and the DCR tester 100 generates less heat, thereby reducing the cost of the DCR tester 100 and reducing the temperature rise during testing.

[0083] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0084] Please refer to Figures 1 to 11 As shown, a preferred embodiment of a blade cell multi-channel DCR tester 100 of the present invention includes:

[0085] A cabinet 1, used for carrying the DCR tester 100;

[0086] A test carrier plate 2 is provided in the cabinet 1 and is used to carry the moving mechanism 3, the positive electrode test mechanism 4 and the negative electrode test mechanism 5;

[0087] A moving mechanism 3 is provided on the test carrier plate 2 and is used to move the tray 40 loaded with the blade cells 50;

[0088] A positive electrode testing mechanism 4 is provided on the test carrier plate 2 and located on one side of the moving mechanism 3, and is used to press the blade cells 50 for DCR testing;

[0089] A negative electrode testing mechanism 5 is provided on the test carrier plate 2 and located on the other side of the moving mechanism 3, and is used to press the blade cell 50 for DCR testing;

[0090] a fan unit 6 , provided on the cabinet 1 , for dissipating heat from the DCR tester 100 ;

[0091] a control module 7 , disposed in the cabinet 1 , for controlling the DCR tester 100 ;

[0092] An industrial computer 8 is disposed in the cabinet 1 and is connected to the moving mechanism 3, the positive electrode testing mechanism 4, the negative electrode testing mechanism 5, the fan unit 6, and the control module 7. The industrial computer 8 is used to control the operation of the DCR tester 100. In specific implementation, any industrial computer capable of implementing this function can be selected from the existing technology, and the model is not limited. The control program is well known to those skilled in the art and can be obtained without any creative effort.

[0093] A power supply module 9 is provided in the cabinet 1 and is connected to the positive electrode test mechanism 4, the negative electrode test mechanism 5, the fan unit 6, the control module 7 and the industrial computer 8 respectively, for powering the DCR tester 100.

[0094] The cabinet 1 includes:

[0095] A lower frame 11 is provided with an acrylic door panel 111 and a component arrangement panel 112; the acrylic door panel 111 facilitates observation of the internal situation;

[0096] An upper frame 12 is provided at the top of the lower frame 11 and is symmetrically provided with two power line brackets 121. Each of the power line brackets 121 is provided with a plurality of copper nose fixing blocks 122 for connecting the soft braided wire and the power line.

[0097] The test carrier plate 2 comprises:

[0098] The five supporting sub-plates 21 form a rectangle with each other. The middle supporting sub-plate 21 is an aluminum plate with a thickness of 15 mm, and the remaining supporting sub-plates 21 are aluminum plates with a thickness of 10 mm, which are used to reduce costs and improve installation efficiency; the moving mechanism 3, the positive electrode testing mechanism 4 and the negative electrode testing mechanism 5 are arranged on the middle supporting sub-plate 21.

[0099] The moving mechanism 3 includes:

[0100] A pair of slide rails (not shown) are provided parallel to the test carrier plate 2 and are used for limiting the sliding movement of the movable carrier plate 31;

[0101] a movable carrying plate 31 slidably connected to the slide rail and used to carry the roller assembly 33;

[0102] A translation cylinder 32 is provided on the test carrier plate 2, with a power output end connected to the movable carrier plate 31 and a control end connected to the industrial computer 8, for driving the movable carrier plate 31 to move on the slide rail;

[0103] A roller assembly 33 is provided on the top of the movable carrier plate 31 and is used for loading and unloading the tray 40 .

[0104] The positive electrode testing mechanism 4 includes:

[0105] A positive electrode testing sub-mechanism 41 is provided on the testing carrier plate 2 and is located on one side of the moving mechanism 3;

[0106] Two anti-collision limit blocks 42 are symmetrically arranged on the left and right sides of the moving end of the positive electrode testing sub-mechanism 41 to prevent the blade battery cell 50 from colliding with the positive electrode testing sub-mechanism 41 when feeding;

[0107] The negative electrode testing mechanism 5 includes:

[0108] A negative electrode testing sub-mechanism 51 is provided on the testing carrier plate 2 and is located on the other side of the moving mechanism 3;

[0109] A temperature probe module 52 is provided on the front of the movable end of the negative electrode testing sub-mechanism 51 and is connected to the industrial computer 8 for testing the temperature of the blade battery cell 50;

[0110] The positive electrode testing sub-mechanism 41 and the negative electrode testing sub-mechanism 51 both include:

[0111] A pair of guide rails 411 are provided parallel to the test carrier plate 2 and are used for limiting the sliding movement of the fixing plate 412;

[0112] a fixed plate 412 slidably connected to the guide rail 411;

[0113] A pressing cylinder 413 is provided on the test carrier plate 2, with a power output end connected to the fixed plate 412, a control end connected to the industrial computer 8, and a pressing direction toward the moving mechanism 3, for driving the current probe assembly 415 to press the blade battery cell 50;

[0114] A screw rod assembly 414 is provided at the top of the fixing plate 412 and is used to adjust the spacing between the current probes 4151 ; the temperature probe module 52 is also provided on the screw rod assembly 414 ;

[0115] A current probe assembly 415 is provided on the mold-changing screw assembly 414;

[0116] At least one anti-collision limit block 416 is provided at the end of the guide rail 411;

[0117] At least one nylon stopper 417 is provided at the bottom end of the fixing plate 412 and is positioned to match the anti-collision stopper 416 ; when the fixing plate 412 moves to the end, the anti-collision stopper 416 is pressed against the nylon stopper 417 to prevent overpressure on the current probe assembly 415 ;

[0118] The current probe assembly 415 includes:

[0119] A plurality of current probes 4151 are provided on the mold-changing screw assembly 414;

[0120] A plurality of current probe braided wires 4152 are respectively connected to one of the current probes 4151;

[0121] One end of a plurality of probe copper noses 4153 is connected to one of the current probe braided wires 4152 , and the other end is connected to the power module 9 .

[0122] Also includes:

[0123] An air source triplex 10 is provided in the cabinet 1 and is connected to the air inlets of the translation cylinder 21 and the pressing cylinder 413 respectively.

[0124] The fan unit 6 includes:

[0125] A plurality of air inlet fans 61 are provided on the cabinet 1 and connected to the industrial computer 8 for heat dissipation of the DCR tester 100;

[0126] A plurality of air outlet fans 62 are provided on the cabinet 1 and connected to the industrial computer 8 for dissipating heat from the DCR tester 100 .

[0127] The control module 7 includes:

[0128] a display screen 71 , provided on the cabinet 1 and connected to the industrial computer 8 , for displaying operating data of the DCR tester 100 ;

[0129] an operation panel 72 , provided on the cabinet 1 and connected to the industrial computer 8 , for operating the DCR tester 100 ;

[0130] A card reader 73, provided on the cabinet 1 and connected to the industrial computer 8, for inputting data into the industrial computer 8;

[0131] A keyboard 74 is provided in the cabinet 1 and connected to the industrial computer 8 for controlling the DCR tester 100;

[0132] A mouse 75 is provided in the cabinet 1 and connected to the industrial computer 8 for controlling the DCR tester 100;

[0133] A network cable interface 76 is provided on the cabinet 1 and connected to the industrial computer 8 for communication between the industrial computer 8 and the outside world;

[0134] A main switch 77, provided on the cabinet 1 and connected to the industrial computer 8, for starting and stopping the DCR tester 100;

[0135] A switch 78 is provided in the cabinet 1 and connected to the industrial computer 8 for communicating between the industrial computer 8 and the outside world.

[0136] The power module 9 includes:

[0137] A power supply chassis 91 is provided in the cabinet 1;

[0138] A power strip 92 is provided in the cabinet 1, one end of which is connected to the power supply chassis 91, and the other end of which is connected to the positive electrode test mechanism 4, the negative electrode test mechanism 5, the fan unit 6, the control module 7 and the industrial computer 8;

[0139] A UPS uninterruptible power supply 93 is provided in the cabinet 1 and connected to the industrial computer 8 for emergency power supply in case of power failure.

[0140] Also includes:

[0141] A barcode scanner 20 is provided in the cabinet 1 and connected to the industrial computer 8 for scanning the label of the blade battery cell 50;

[0142] An alarm light 30 is provided on the top of the cabinet 1 and is connected to the industrial computer 8 for indicating the operating status of the DCR tester 100 .

[0143] Working principle of the present invention:

[0144] Press the main switch 77 to start the DCR tester 100, and transfer the tray 40 loaded with blade batteries 50 to the moving mechanism 3 through the roller assembly 33. After the label of the blade battery 50 is scanned and identified by the barcode scanner 20, the positive electrode testing mechanism 4 and the negative electrode testing mechanism 5 are controlled by the operation panel 72 to move toward the middle to press the blade batteries 50 on half of the tray 40 for DCR testing. After the test is completed, the positive electrode testing mechanism 4 and the negative electrode testing mechanism 5 are controlled to return to their original positions, and the tray 40 is linked to be translated by the translation cylinder 32 to perform the DCR test on the blade batteries 50 on the other half of the tray 40.

[0145] In summary, the advantages of the present invention are:

[0146] A moving mechanism is arranged in the cabinet, and a positive test mechanism and a negative test mechanism are arranged on the left and right sides of the moving mechanism respectively. The moving mechanism drives the moving carrier plate to slide on the slide rail through the translation cylinder, and then links the roller assembly to move, and the positive test mechanism and the negative test mechanism are both pressed and returned to their original position by the pressing cylinder. During the test, the tray loaded with blade batteries is transferred to the moving mechanism through the roller assembly, and then the positive test mechanism and the negative test mechanism press half of the blade batteries on the tray for DCR test. After the test is completed, the positive test mechanism and the negative test mechanism return to their original position, and the tray is linked to the translation cylinder for translation, and then the DCR test of the blade batteries on the other half of the tray is carried out. That is, a cut-disc test structure is adopted, and a translation cylinder is used instead of a traditional linear module to reduce costs. Compared with the full-disc type, the number of probes and power supplies is reduced, and the power lines are less stacked, which ultimately greatly reduces the cost of the DCR tester, reduces the temperature rise of the test, and improves the test efficiency.

[0147] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A blade battery multi-channel DCR tester, characterized by: include: A cabinet; A test load board is provided in the cabinet; a moving mechanism, disposed on the test carrying plate; a positive electrode testing mechanism, provided on the testing carrier plate and located on one side of the moving mechanism; a negative electrode testing mechanism, provided on the testing carrier plate and located on the other side of the moving mechanism; A fan unit is provided on the cabinet; A control module is arranged in the cabinet; an industrial computer, disposed in the cabinet and connected to the moving mechanism, the positive electrode testing mechanism, the negative electrode testing mechanism, the fan unit, and the control module; A power supply module is provided in the cabinet and is connected to the positive electrode test mechanism, the negative electrode test mechanism, the fan unit, the control module and the industrial computer respectively; The cabinet comprises: A lower frame with an acrylic door panel and a component placement panel; An upper frame is provided at the top of the lower frame and is symmetrically provided with two power line brackets, each of which is provided with a plurality of copper nose fixing blocks; The moving mechanism comprises: A pair of slide rails are arranged parallel to the test bearing plate; a movable bearing plate, slidably connected to the slide rail; A translation cylinder is provided on the test carrier plate, a power output end is connected to the movable carrier plate, and a control end is connected to the industrial computer; A roller assembly is arranged on the top of the movable carrying plate.

2. The multi-channel DCR tester for blade cells according to claim 1, characterized in that: The test carrier plate comprises: The five bearing sub-plates form a rectangle. The middle bearing sub-plate is a 15 mm thick aluminum plate, and the remaining bearing sub-plates are 10 mm thick aluminum plates. The moving mechanism, positive electrode testing mechanism and negative electrode testing mechanism are arranged on the middle bearing sub-plate.

3. The multi-channel DCR tester for blade cells according to claim 1, characterized in that: The positive electrode testing mechanism includes: a positive electrode testing sub-mechanism, provided on the test carrying plate and located on one side of the moving mechanism; Two anti-collision limit blocks are symmetrically arranged on the left and right sides of the moving end of the positive electrode testing sub-mechanism; The negative electrode testing mechanism comprises: a negative electrode testing sub-mechanism, provided on the test carrying plate and located on the other side of the moving mechanism; a temperature probe module, disposed on the front side of the movable end of the negative electrode testing sub-mechanism; The positive electrode testing sub-mechanism and the negative electrode testing sub-mechanism both include: a pair of guide rails, arranged parallel to the test carrying plate; a fixed plate, slidably connected to the guide rail; A pressing cylinder is provided on the test bearing plate, with a power output end connected to the fixed plate, a control end connected to the industrial computer, and a pressing direction toward the moving mechanism; A changeable screw assembly is provided at the top end of the fixed plate; a current probe assembly, provided on the profile-changing lead screw assembly; At least one anti-collision limit block, provided at the end of the guide rail; At least one nylon limit block is provided at the bottom end of the fixed plate, and its position matches the anti-collision limit block; The current probe assembly comprises: A plurality of current probes are provided on the mold-changing screw assembly; A plurality of current probe braided wires, each connected to one of the current probes; One end of a plurality of probe copper noses is respectively connected to a current probe braided wire, and the other end is connected to the power module.

4. The multi-channel DCR tester for blade cells according to claim 3, characterized in that: Also includes: An air source triplex is arranged in the cabinet and is communicated with the air inlets of the translation cylinder and the pressing cylinder respectively.

5. The blade cell multi-channel DCR tester according to claim 1, characterized in that: The fan unit comprises: A plurality of air inlet fans are provided on the cabinet and connected to the industrial computer; A plurality of air outlet fans are arranged on the cabinet and connected to the industrial computer.

6. The blade cell multi-channel DCR tester according to claim 1, characterized in that: The control module includes: A display screen is provided on the cabinet and is connected to the industrial computer; An operation panel, provided on the cabinet and connected to the industrial computer; A card reader is provided on the cabinet and is connected to the industrial computer; A keyboard is provided in the cabinet and is connected to the industrial computer; A mouse is provided in the cabinet and connected to the industrial computer; A network cable interface is provided on the cabinet and is connected to the industrial computer; A main switch is provided on the cabinet and is connected to the industrial computer; A switch is arranged in the cabinet and connected to the industrial computer.

7. The blade cell multi-channel DCR tester according to claim 1, characterized in that: The power module includes: A power supply chassis is arranged in the cabinet; A power strip is provided in the cabinet, one end of which is connected to the power supply chassis, and the other end of which is connected to the positive electrode test mechanism, the negative electrode test mechanism, the fan unit, the control module and the industrial computer; A UPS uninterruptible power supply is arranged in the cabinet and connected to the industrial computer.

8. The blade cell multi-channel DCR tester according to claim 1, characterized in that: Also includes: A barcode scanner, located in the cabinet and connected to the industrial computer; An alarm light is arranged on the top of the cabinet and is connected to the industrial computer.

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