A fully automatic whole-disk DCIR test machine

Abstract

The present invention provides a fully automatic whole-disk DCIR tester in the technical field of battery testing equipment, comprising: a lower frame; an upper frame, arranged at the upper end of the lower frame; a lifting mechanism, arranged on the lower frame; a roller transmission mechanism, arranged on the lower frame, located directly above the lifting mechanism; a testing mechanism, arranged on the lower frame, located directly above the roller transmission mechanism; a PLC, arranged in the upper frame, and connected to the lifting mechanism, the roller transmission mechanism and the testing mechanism; a display screen, arranged on the surface of the upper frame, and connected to the PLC; a button group, arranged on the surface of the upper frame, and connected to the PLC; a switch, arranged in the upper frame, and connected to the PLC; a voltage and current acquisition module, arranged in the upper frame, and connected to the PLC. The advantages of the present invention are: greatly improving the DCIR test accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of battery testing equipment, in particular to a fully automatic whole-disk DCIR testing machine. Background Art

[0002] After the cell is divided into different capacities, a DCIR test (DC internal resistance test) is required to confirm the consistency of the cell's internal resistance. The DCIR test is an indirect test, that is, the voltage and current of the cell are discretely tested, and the internal resistance of the cell is calculated based on the tested voltage and current.

[0003] The traditional DCIR tester uses a half-tray test method, that is, the test probe first tests the half-tray of cells loaded on the cell tray. After the half-tray test is completed, the cell tray is moved again by the mechanical structure to test the remaining half-tray of cells again. However, this method causes a gap between the cell tray and the cells, which makes it easy to deviate during the second move and positioning. As a result, the test probe contacts the cells at a different position during the second test, which easily leads to test deviation.

[0004] Therefore, how to provide a fully automatic whole-disk DCIR tester to improve the DCIR test accuracy 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 fully automatic whole-disk DCIR tester to improve the DCIR test accuracy.

[0006] The present invention is implemented as follows: a fully automatic whole-disk DCIR testing machine, comprising:

[0007] a lower rack;

[0008] An upper frame, arranged at the upper end of the lower frame;

[0009] A lifting mechanism is arranged on the lower frame;

[0010] A roller transmission mechanism is arranged on the lower frame and is located directly above the lifting mechanism;

[0011] a testing mechanism, disposed on the lower frame and directly above the roller transmission mechanism;

[0012] A PLC is arranged in the upper frame and connected with the lifting mechanism, the roller transmission mechanism and the testing mechanism;

[0013] A display screen is arranged on the surface of the upper frame and connected to the PLC;

[0014] A button group, arranged on the surface of the upper frame and connected to the PLC;

[0015] A switch, arranged in the upper rack and connected to the PLC;

[0016] A voltage and current acquisition module is arranged in the upper frame and connected to the PLC.

[0017] Furthermore, the lifting mechanism comprises:

[0018] A support plate;

[0019] Four linear bearings are arranged through the middle of the support plate;

[0020] A servo motor is arranged at the bottom end of the support plate, a power output end is connected to the bottom end of the linear bearing, and a control end is connected to the PLC;

[0021] a pressure sensor, disposed on the support plate and connected to the PLC;

[0022] A battery cell detection sensor group is arranged on the support plate and connected to the PLC.

[0023] Furthermore, the battery cell detection sensor group includes:

[0024] At least one super-height detection sensor is arranged above the support plate, with a sensing direction horizontally inward and connected to the PLC;

[0025] At least one material input detection sensor, disposed on the support plate and connected to the PLC;

[0026] At least one transmission-to-position sensor, disposed on the support plate and connected to the PLC;

[0027] At least one anti-reverse sensor, disposed on the support plate and connected to the PLC;

[0028] At least one in-situ detection sensor is disposed on the support plate and connected to the PLC.

[0029] Furthermore, the super-height detection sensor, the feeding detection sensor, the transmission-to-position sensor, the anti-reverse sensor and the in-position detection sensor are all photoelectric sensors.

[0030] Furthermore, the roller transmission mechanism comprises:

[0031] A pair of mounting sheet metals are arranged in parallel on the lower frame and located on both sides of the jacking mechanism, and a plurality of adjustment slots are arranged side by side from top to bottom in the middle;

[0032] Two electric rollers are respectively connected to one of the mounting sheet metals in a rolling manner and are connected to the PLC;

[0033] A plurality of unpowered rollers are connected to the mounting sheet metal in a rolling manner side by side and are located on the same side of the electric roller;

[0034] A plurality of rubber-covered rings are respectively sleeved on the electric roller and the unpowered roller;

[0035] A plurality of belts are respectively mounted on the adjacent electric rollers and the unpowered rollers, or the adjacent unpowered rollers and the unpowered rollers;

[0036] One end of a plurality of tensioning members is locked and connected to the adjusting groove, and the other end thereof abuts against the inner side of the belt.

[0037] Furthermore, the testing mechanism comprises:

[0038] A pair of slide rails, arranged in parallel on the top of the lower frame;

[0039] A plurality of sliding plates, both ends of which are respectively slidably connected to one of the sliding rails;

[0040] A plurality of positive electrode probe modules are arranged on the sliding plate and connected to the voltage and current acquisition module;

[0041] A plurality of negative electrode probe modules are arranged on the sliding plate and connected to the voltage and current acquisition module;

[0042] A plurality of temperature probe modules are arranged on the sliding plate and connected to the PLC;

[0043] At least one K-type thermocouple, disposed on the lower frame and connected to the PLC;

[0044] A plurality of fans are arranged at the top of the lower frame and connected to the PLC;

[0045] at least one carbon monoxide sensor, disposed on the lower frame and connected to the PLC;

[0046] At least one smoke sensor is arranged on the lower frame and connected to the PLC.

[0047] Furthermore, the button group includes:

[0048] A start button, arranged on the surface of the upper frame and connected to the PLC;

[0049] A stop button is provided on the surface of the upper frame and is connected to the PLC;

[0050] An emergency stop button, arranged on the surface of the upper frame and connected to the PLC;

[0051] A reset button is provided on the surface of the upper frame and is connected to the PLC;

[0052] A maintenance selection button is provided on the surface of the upper frame and is connected to the PLC;

[0053] A manual-automatic switching button is arranged on the surface of the upper frame and is connected to the PLC.

[0054] Furthermore, it also includes:

[0055] A power supply module is arranged in the upper rack and connected to the PLC;

[0056] A plurality of axial flow fans are arranged on the top of the upper frame and connected to the PLC;

[0057] A buzzer is arranged in the upper frame and connected to the PLC;

[0058] At least one barcode scanner, disposed in the lower frame and connected to the PLC;

[0059] Furthermore, it also includes:

[0060] A plurality of line cards are arranged in the upper rack.

[0061] Furthermore, the display screen is a touch display screen.

[0062] The advantages of the present invention are:

[0063] By setting a roller transmission mechanism right above the jacking mechanism, and setting a testing mechanism right above the roller transmission mechanism, the PLC controls the roller transmission mechanism to transmit the battery tray loaded with battery cells, and after the battery tray is detected by the set battery detection sensor group to move into place, the jacking mechanism is driven to lift the battery tray, so that all the battery cells in the battery tray are in contact with the testing mechanism, and then all the battery cells loaded on the battery tray are automatically subjected to DCIR test. There is no need to carry the battery tray twice through mechanical structure as traditionally, which avoids the different contact positions between the testing mechanism and the battery cells, thereby greatly improving the DCIR test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0065] Figure 1 It is a structural schematic diagram of a fully automatic whole-disk DCIR testing machine of the present invention.

[0066] Figure 2It is one of the structural schematic diagrams of the upper frame of the present invention.

[0067] Figure 3 This is the second structural schematic diagram of the upper frame of the present invention.

[0068] Figure 4 It is a structural schematic diagram of the jacking mechanism of the present invention.

[0069] Figure 5 It is a structural schematic diagram of the roller transmission mechanism of the present invention.

[0070] Figure 6 It is a structural schematic diagram of the testing mechanism of the present invention.

[0071] Figure 7 The invention discloses a circuit principle block diagram of a fully automatic whole-disk DCIR testing machine.

[0072] Marking Description:

[0073] 100-A fully automatic whole-plate DCIR test machine, 1-lower frame, 2-upper frame, 3-lifting mechanism, 4-roller transmission mechanism, 5-testing mechanism, 6-PLC, 7-display screen, 8-button group, 9-switch, 10-voltage and current acquisition module, 20-power module, 30-axial flow fan, 40-buzzer, 50-barcode scanner, 60-line card, 70-safety door lock, 80-battery cell, 90-battery cell tray, 31-support plate, 32-linear bearing, 33-servo motor, 34-pressure sensor, 35-battery cell detection sensor group, 351-ultra-high detection sensor, 352-feeding detection sensor, 353-transmission in place sensor , 354-anti-reverse sensor, 355-in-place detection sensor, 41-installation sheet metal, 42-electric roller, 43-unpowered roller, 44-rubber-coated ring, 45-belt, 46-tensioner, 47-roller driver, 411-adjustment slot, 51-slide rail, 52-slide plate, 531-positive probe module, 532-negative probe module, 533-temperature probe module, 54-K-type thermocouple, 55-fan, 56-carbon monoxide sensor, 57-smoke sensor, 58-change-out support, 81-start button, 82-stop button, 83-emergency stop button, 84-reset button, 85-maintenance selection button, 86-manual-automatic switching button. DETAILED DESCRIPTION

[0074] The embodiment of the present invention provides a fully automatic whole-tray DCIR tester 100, which solves the technical problem that the DCIR tester in the prior art adopts a half-tray testing method, and that the gap between the battery cell tray and the battery cell easily leads to test deviation during the secondary handling and retesting, thereby achieving the technical effect of greatly improving the DCIR test accuracy.

[0075] The technical solution in the embodiment of the present invention is to solve the above-mentioned problem, and the overall idea is as follows: a battery tray 90 loaded with battery cells 80 is transmitted by a roller transmission mechanism 4, and the battery tray 90 is lifted up by a lifting mechanism 3, so that all battery cells 80 in the battery tray 90 are in contact with the testing mechanism 5, and then all battery cells 80 loaded on the battery tray 90 are automatically subjected to a DCIR test, without the need for a secondary transport of the battery tray 90 by a mechanical structure, so as to improve the DCIR test accuracy.

[0076] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0077] Please refer to Figures 1 to 7 As shown, a preferred embodiment of a fully automatic whole-disk DCIR tester 100 of the present invention comprises:

[0078] a lower rack 1;

[0079] An upper frame 2, arranged at the upper end of the lower frame 1;

[0080] A lifting mechanism 3, provided on the lower frame 1, for lifting the battery tray 90, so that the battery cells 80 in the battery tray 90 are connected to the testing mechanism 5;

[0081] A roller transmission mechanism 4 is provided on the lower frame 1 and is located directly above the lifting mechanism 3, and is used to transmit the battery cell tray 90 to directly above the lifting mechanism 3;

[0082] a testing mechanism 5, disposed on the lower frame 1, directly above the roller transmission mechanism 4, for performing a DCIR test on the battery cell 80;

[0083] A PLC 6 is arranged in the upper frame 2 and connected with the lifting mechanism 3, the roller transmission mechanism 4 and the testing mechanism 5, and is used to control the operation of the DCIR testing machine 100. In specific implementation, it is sufficient to select a PLC that can realize this function from the prior art, and it is not limited to any model. Moreover, the control program is well known to those skilled in the art, and can be obtained by those skilled in the art without creative labor.

[0084] A display screen 7, disposed on the surface of the upper frame 2 and connected to the PLC 6, for displaying the test data and test process of the DCIR test machine 100;

[0085] a button group 8, disposed on the surface of the upper frame 2 and connected to the PLC 6, for operating the DCIR tester 100;

[0086] A switch 9, which is arranged in the upper rack 2 and connected to the PLC 6, is used for the DCIR tester 100 to communicate with the outside world;

[0087] A voltage and current acquisition module 10 is disposed in the upper frame 2 and connected to the PLC 6 , and is used to collect voltage and current through the positive probe module 531 and the negative probe module 532 .

[0088] The lifting mechanism 3 comprises:

[0089] A support plate 31, used to support the lifting mechanism 3;

[0090] Four linear bearings 32 are provided through the middle of the support plate 31 to link the battery tray 90 to move up and down;

[0091] A servo motor 33 is provided at the bottom end of the support plate 31, the power output end is connected to the bottom end of the linear bearing 32, and the control end is connected to the PLC6, and is used to drive the linear bearing 32 to perform vertical displacement;

[0092] A pressure sensor 34, disposed on the support plate 31 and connected to the PLC 6, for sensing the pressure of the positive electrode probe module 531 and the negative electrode probe module 532 during testing;

[0093] A battery cell detection sensor group 35 is disposed on the support plate 31 and connected to the PLC 6 for detecting whether the battery cell tray 90 is placed correctly.

[0094] The battery cell detection sensor group 35 includes:

[0095] At least one super-height detection sensor 351 is disposed above the support plate 31, with a sensing direction horizontally inward, and is connected to the PLC6;

[0096] At least one material input detection sensor 352, provided on the support plate 31 and connected to the PLC 6;

[0097] At least one transmission-to-position sensor 353, provided on the support plate 31 and connected to the PLC 6;

[0098] At least one anti-reverse sensor 354, provided on the support plate 31 and connected to the PLC6;

[0099] At least one in-position detection sensor 355 is disposed on the support plate 31 and connected to the PLC 6 .

[0100] The super-height detection sensor 351, the feeding detection sensor 352, the transmission-to-position sensor 353, the anti-reverse sensor 354 and the in-position detection sensor 355 are all photoelectric sensors.

[0101] The roller transmission mechanism 4 comprises:

[0102] A pair of mounting sheet metals 41 are arranged in parallel on the lower frame 2 and located on both sides of the lifting mechanism 3, and a plurality of adjustment slots 411 are arranged side by side from top to bottom in the middle;

[0103] Two electric rollers 42 are respectively connected to the mounting sheet metal 41 in a rolling manner and connected to the PLC 6 to link the unpowered roller 43 to roll;

[0104] A plurality of unpowered rollers 43 are rollingly connected to the mounting sheet metal 41 in parallel and are located on the same side of the electric roller 42;

[0105] A plurality of rubber-coated rings 44 are respectively sleeved on the electric rollers 42 and the unpowered rollers 43 to prevent the battery tray 90 from being scratched and reduce slipping;

[0106] A plurality of belts 45 are respectively mounted on the adjacent electric rollers 42 and the unpowered rollers 43, or the adjacent unpowered rollers 43 and the unpowered rollers 43, for transmitting the power of the electric rollers 42 to the unpowered rollers 43;

[0107] A plurality of tensioning members 46 are locked and connected to the adjusting groove 411 at one end, and abutted against the inner side of the belt 45 at the other end, that is, when the tensioning member 46 moves downward, the belt 45 can be tightened, and when it moves upward, the belt 45 can be loosened; by setting the tensioning member to adjust the tension of the belt 45, better transmission can be achieved.

[0108] A drum drive 47 , through which the electric drum 42 is connected to the PLC 6 .

[0109] The testing mechanism 5 comprises:

[0110] A pair of slide rails 51 are arranged in parallel at the top of the lower frame 1 and are used for limiting the sliding of the sliding plate 52;

[0111] A plurality of sliding plates 52, both ends of which are slidably connected to one of the slide rails 51, for adjusting the positions of the positive electrode probe module 531, the negative electrode probe module 532 and the temperature probe module 533;

[0112] A plurality of positive electrode probe modules 531 are disposed on the sliding plate 52 and connected to the voltage and current acquisition module 10;

[0113] A plurality of negative electrode probe modules 532 are arranged on the sliding plate 52 and connected to the voltage and current acquisition module 10; the positive electrode probe module 531 and the negative electrode probe module 532 are designed to be transferable and detachable;

[0114] A plurality of temperature probe modules 533 are provided on the sliding plate 52 and connected to the PLC 6 for testing the temperature of the battery cell 80;

[0115] At least one K-type thermocouple 54, provided on the lower frame 1 and connected to the PLC 6, for testing the ambient temperature;

[0116] A plurality of fans 55 are provided at the top of the lower frame 1 and connected to the PLC 6 for cooling the battery cells 80 during the test process;

[0117] At least one carbon monoxide sensor 56, disposed on the lower frame 1 and connected to the PLC 6;

[0118] At least one smoke sensor 57 is disposed on the lower frame 1 and connected to the PLC 6.

[0119] At least one mold change and separation support 58 is vertically arranged at the top of the lower frame 1, and is used to disengage the positive electrode probe module 531 and the negative electrode probe module 532 from the meshing rack (not shown), and connect them through a mold change tool (not shown) for mold change;

[0120] The button group 8 includes:

[0121] A start button 81, provided on the surface of the upper frame 2 and connected to the PLC 6;

[0122] A stop button 82 is provided on the surface of the upper frame 2 and connected to the PLC 6;

[0123] An emergency stop button 83, provided on the surface of the upper frame 2 and connected to the PLC 6;

[0124] A reset button 84 is provided on the surface of the upper frame 2 and connected to the PLC 6;

[0125] A maintenance selection button 85 is provided on the surface of the upper frame 2 and connected to the PLC 6;

[0126] A manual-automatic switching button 86 is arranged on the surface of the upper frame 2 and is connected to the PLC 6.

[0127] Also includes:

[0128] A power supply module 20, disposed in the upper rack 2 and connected to the PLC 6, for supplying power to the DCIR tester 100;

[0129] A plurality of axial fans 30 are provided at the top of the upper frame 2 and connected to the PLC 6 for heat dissipation of the DCIR test machine 100;

[0130] A buzzer 40, arranged in the upper frame 2 and connected to the PLC 6, for safety alarm;

[0131] At least one barcode scanner 50, disposed in the lower frame 1 and connected to the PLC 6, for scanning the battery cell 80 to record the test progress of the battery cell 80;

[0132] A plurality of line cards 60 are arranged in the upper rack 2 for storing the lines in an orderly manner.

[0133] The display screen 7 is a touch display screen.

[0134] Also includes:

[0135] A safety door lock 70 is arranged in the upper frame 2 and connected to the PLC 6.

[0136] Working principle of the present invention:

[0137] Press the start button 81 to start the DCIR tester 100, and the battery tray 90 loaded with battery cells 80 is transmitted through the roller transmission mechanism 4 until the PLC6 detects that the battery tray 90 has moved into place through the battery cell detection sensor group 35, and stops the operation of the roller transmission mechanism 4; the PLC6 lifts the battery tray 90 to a preset height through the lifting mechanism 3, so that all the battery cells 80 in the battery tray 90 are in contact with the testing mechanism 5, and then automatically performs a DCIR test on all the battery cells 80 loaded on the battery tray 90.

[0138] In summary, the advantages of the present invention are:

[0139] By setting a roller transmission mechanism right above the jacking mechanism, and setting a testing mechanism right above the roller transmission mechanism, the PLC controls the roller transmission mechanism to transmit the battery tray loaded with battery cells, and after the battery tray is detected by the set battery detection sensor group to move into place, the jacking mechanism is driven to lift the battery tray, so that all the battery cells in the battery tray are in contact with the testing mechanism, and then all the battery cells loaded on the battery tray are automatically subjected to DCIR test. There is no need to carry the battery tray twice through mechanical structure as traditionally, which avoids the different contact positions between the testing mechanism and the battery cells, thereby greatly improving the DCIR test accuracy.

[0140] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only 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 in the scope of protection of the claims of the present invention.

Claims

1. A fully automatic whole-disk DCIR tester, Features: include: a lower rack; An upper frame, arranged at the upper end of the lower frame; A lifting mechanism is arranged on the lower frame; A roller transmission mechanism is arranged on the lower frame and is located directly above the lifting mechanism; a testing mechanism, disposed on the lower frame and directly above the roller transmission mechanism; A PLC is arranged in the upper frame and connected with the lifting mechanism, the roller transmission mechanism and the testing mechanism; A display screen is arranged on the surface of the upper frame and connected to the PLC; A button group, arranged on the surface of the upper frame and connected to the PLC; A switch, arranged in the upper rack and connected to the PLC; A voltage and current acquisition module, arranged in the upper rack and connected to the PLC; The roller transmission mechanism comprises: A pair of mounting sheet metals are arranged in parallel on the lower frame and located on both sides of the jacking mechanism, and a plurality of adjustment slots are arranged side by side from top to bottom in the middle; Two electric rollers are respectively connected to one of the mounting sheet metals in a rolling manner and are connected to the PLC; A plurality of unpowered rollers are connected to the mounting sheet metal in a rolling manner side by side and are located on the same side of the electric roller; A plurality of rubber-covered rings are respectively sleeved on the electric roller and the unpowered roller; A plurality of belts are respectively mounted on the adjacent electric rollers and the unpowered rollers, or the adjacent unpowered rollers and the unpowered rollers; One end of a plurality of tensioning members is locked and connected to the adjusting groove, and the other end thereof abuts against the inner side of the belt.

2. A fully automatic whole-disk DCIR tester as claimed in claim 1, Features: The lifting mechanism comprises: A support plate; Four linear bearings are arranged through the middle of the support plate; A servo motor is arranged at the bottom end of the support plate, a power output end is connected to the bottom end of the linear bearing, and a control end is connected to the PLC; a pressure sensor, disposed on the support plate and connected to the PLC; A battery cell detection sensor group is arranged on the support plate and connected to the PLC.

3. A fully automatic whole-disk DCIR tester as claimed in claim 2, Features: The battery cell detection sensor group comprises: At least one super-height detection sensor is arranged above the support plate, with a sensing direction horizontally inward and connected to the PLC; At least one material input detection sensor, disposed on the support plate and connected to the PLC; At least one transmission-to-position sensor, disposed on the support plate and connected to the PLC; At least one anti-reverse sensor, disposed on the support plate and connected to the PLC; At least one in-situ detection sensor is disposed on the support plate and connected to the PLC.

4. A fully automatic whole-disk DCIR tester as claimed in claim 3, Features: The super-height detection sensor, the feeding detection sensor, the transmission-to-position sensor, the anti-reverse sensor and the in-position detection sensor are all photoelectric sensors.

5. A fully automatic whole-disk DCIR tester as claimed in claim 1, Features: The testing organization includes: A pair of slide rails, arranged in parallel on the top of the lower frame; A plurality of sliding plates, both ends of which are respectively slidably connected to one of the sliding rails; A plurality of positive electrode probe modules are arranged on the sliding plate and connected to the voltage and current acquisition module; A plurality of negative electrode probe modules are arranged on the sliding plate and connected to the voltage and current acquisition module; A plurality of temperature probe modules are arranged on the sliding plate and connected to the PLC; At least one K-type thermocouple, disposed on the lower frame and connected to the PLC; A plurality of fans are arranged at the top of the lower frame and connected to the PLC; at least one carbon monoxide sensor, disposed on the lower frame and connected to the PLC; At least one smoke sensor is arranged on the lower frame and connected to the PLC.

6. A fully automatic whole-disk DCIR tester as claimed in claim 1, Features: The button group includes: A start button, arranged on the surface of the upper frame and connected to the PLC; A stop button is provided on the surface of the upper frame and is connected to the PLC; An emergency stop button, arranged on the surface of the upper frame and connected to the PLC; A reset button is provided on the surface of the upper frame and is connected to the PLC; A maintenance selection button is provided on the surface of the upper frame and is connected to the PLC; A manual-automatic switching button is arranged on the surface of the upper frame and is connected to the PLC.

7. A fully automatic whole-disk DCIR tester as claimed in claim 1, Features: Also includes: A power supply module is arranged in the upper rack and connected to the PLC; A plurality of axial flow fans are arranged on the top of the upper frame and connected to the PLC; A buzzer is arranged in the upper frame and connected to the PLC; At least one barcode scanning gun is arranged in the lower frame and connected to the PLC.

8. A fully automatic whole-disk DCIR tester as claimed in claim 1, Features: Also includes: A plurality of line cards are arranged in the upper rack.

9. A fully automatic whole-disk DCIR tester as claimed in claim 1, Features: The display screen is a touch display screen.

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