A tool for calibrating the line sequence and accuracy of chemical composition equipment

Abstract

The application provides a chemical component distribution equipment line sequence and precision calibration tool in the technical field of chemical component distribution, which comprises a bottom part, a top part arranged at the top end of the bottom part and connected with the bottom part, and a side part arranged between the bottom part and the top part and connected with the bottom part. The bottom part comprises a bottom plate provided with a notch and a support column, a power supply communication seat arranged in the notch and connected with the side part, a switching power supply connected with the power supply communication seat, a wiring terminal group connected with the switching power supply, a fuse assembly connected with the power supply communication seat and the side part, a switch connected with the power supply communication seat, a digital multimeter connected with the wiring terminal group and the switch, a calibration control signal plate connected with the wiring terminal group, the switch and the digital multimeter, and a calibration module connected with the digital multimeter and the top part. The application has the advantages of greatly improving the space utilization of the tool, the efficiency of line sequence and precision calibration, and greatly reducing the cost of the tool.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical composition and capacity, in particular to a line sequence and precision calibration tool for chemical composition and capacity equipment. Background Art

[0002] During the production and manufacturing process of battery cells, it is necessary to use capacity composition equipment to perform capacity composition. Only after the precise charging and discharging process of the capacity composition equipment can the positive and negative electrode materials in the battery cells be effectively activated to improve the comprehensive performance of the battery cells such as charging and discharging, self-discharge and storage capacity. Only by collecting and analyzing data such as the capacity and internal resistance of the battery cells can the quality level of the battery cells be effectively determined and battery cells with the same electrical parameters be selected for series and parallel applications.

[0003] Typically, battery cell fractionation equipment consists of multiple storage locations, each of which has a built-in mechanical unit to hold several battery cells. Each battery cell corresponds to a channel in the battery cell fractionation equipment, so each battery cell fractionation equipment has dozens or even hundreds of channels. Due to the large number of channels, the wiring harnesses of each channel may be connected incorrectly or reversely during the production installation process or after maintenance. Therefore, before commissioning or after maintenance, it is necessary to use the wiring harnesses between each channel (voltage sampling lines and power lines) using a wire sequence calibration tool to ensure that the channels are correctly wired before use. Otherwise, the accuracy of the loading and data collection of each channel cannot be guaranteed. In addition, during the charging and discharging process of the battery cell fractionation equipment, the test current flowing in the circuit will produce a certain voltage drop due to internal resistance loss, which will cause a certain amount of power loss, affecting the final battery cell test results, and may even cause safety accidents such as overcharging or over-discharging. Therefore, it is necessary to use a precision calibration tool to calibrate the voltage and current of the test power supply of the battery cell fractionation equipment to calibrate and zero, ensure that the voltage drop value is eliminated, and ensure the accuracy of the battery cell test data.

[0004] Traditionally, the line sequence calibration tool and the precision calibration tool are two independent tools. The line sequence calibration tool and the precision calibration tool need to be used separately to calibrate the chemical composition equipment accordingly. There are the following disadvantages: 1. The two independent tools require twice the storage space. Especially in the face of the urgent need to increase the production capacity of 4680 cylindrical battery cells, the factory's space utilization will greatly affect the production capacity of the battery cells; 2. The two independent tools need to be calibrated separately, and the warehousing and power supply processes need to be carried out separately, which is time-consuming and cumbersome to operate, greatly affecting the production or maintenance efficiency; 3. The two independent tools have low structural space utilization, resulting in a waste of additional costs for structural parts.

[0005] Therefore, how to provide a tool for calibrating the line sequence and precision of the component capacity equipment to improve the space utilization of the tool, the efficiency of the line sequence and precision calibration, and reduce the cost of the tool has become a technical problem that needs to be solved urgently. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a tool for calibrating the line sequence and precision of chemical component and capacity equipment, so as to improve the space utilization rate of the tool, the efficiency of line sequence and precision calibration, and reduce the cost of the tool.

[0007] The present invention is implemented as follows: a line sequence and precision calibration tool for chemical component equipment, comprising:

[0008] A bottom mount;

[0009] A top assembly, disposed on the top of the bottom assembly and connected to the bottom assembly;

[0010] a side assembly, disposed between the bottom assembly and the top assembly, and connected to the bottom assembly;

[0011] The bottom assembly includes:

[0012] A bottom plate, with a notch symmetrically provided on both sides and a plurality of vertical supports provided on the top; the bottom plate is connected to the top through the supports;

[0013] At least one power supply and communication socket, disposed in the slot and connected to the side assembly;

[0014] A switching power supply is provided on the bottom plate and connected to the power supply and communication socket;

[0015] a terminal block group, provided on the bottom plate and connected to the switching power supply;

[0016] A fuse assembly is provided on the bottom plate, one end of the fuse assembly is connected to the power supply and communication socket, and the other end is connected to the side assembly;

[0017] A switch, provided on the bottom plate and connected to the power supply and communication socket;

[0018] a digital multimeter, disposed on the base plate and connected to the terminal block group and the switch;

[0019] a calibration control signal board, disposed on the base plate and connected to the terminal block group, the switch, and the digital multimeter;

[0020] A calibration module is arranged on the bottom plate, one end of which is connected to the digital multimeter, and the other end of which is connected to the top device.

[0021] Furthermore, two bushings are provided at the diagonal corners of the base plate.

[0022] Furthermore, the calibration module includes:

[0023] Several current sampling resistors;

[0024] Several precision calibration adapter boards, one end of which is connected to the digital multimeter through a current sampling resistor, and the other end is connected to the top device;

[0025] Several line sequence calibration adapter boards are connected to the digital multimeter at one end and to the top assembly at the other end.

[0026] Furthermore, the bottom assembly further comprises:

[0027] At least one heat dissipation module is provided on the bottom plate and connected to the terminal group.

[0028] Furthermore, the bottom assembly further comprises:

[0029] An analog-to-digital socket is provided on the bottom plate and is connected to the power supply and communication socket.

[0030] Furthermore, the bottom assembly further comprises:

[0031] A wire trough is arranged on the top of the bottom plate.

[0032] Furthermore, the top assembly includes:

[0033] A plurality of cover plate assemblies are arranged side by side on the top of the bottom assembly through the support columns and are connected to the bottom assembly.

[0034] Furthermore, the cover plate assembly includes:

[0035] an insulating cover plate;

[0036] Two insulating pads are provided on the left and right sides of the insulating cover plate;

[0037] Three pressure-bearing plates, respectively provided at the bottom ends of the insulating cover plate and the insulating pad;

[0038] A plurality of connecting plates are respectively connected to the bottom ends of the three pressure-bearing plates;

[0039] Several short negative electrode pressing plates are arranged side by side on the top of the insulating pad and connected to the bottom;

[0040] Several short positive electrode pressing plates are arranged side by side on the top of the insulating pad, alternately arranged with the short negative electrode pressing plates, and connected to the bottom assembly;

[0041] Several long negative electrode pressing plates are arranged side by side on the top of the insulating pad, alternately arranged with the short positive electrode pressing plates, and connected to the bottom assembly;

[0042] A plurality of long positive electrode pressing plates are arranged side by side on the top of the insulating pad, alternately arranged with the long negative electrode pressing plates, and connected to the bottom.

[0043] Furthermore, the insulating pad is provided with a channel marker.

[0044] Furthermore, the side fittings include:

[0045] Four side sheet metals form a rectangle;

[0046] an acrylic observation window, provided on one of the side sheet metals;

[0047] A plurality of handles are provided on the side sheet metal;

[0048] A network cable interface is provided on the side sheet metal and is connected to the power supply and communication socket;

[0049] A power switch is provided on the side sheet metal and is connected to the power supply and communication socket;

[0050] a socket, provided on the side sheet metal and connected to the power switch;

[0051] The two upper maintenance sheet metals are installed above the two left and right side sheet metals.

[0052] The advantages of the present invention are:

[0053] By arranging a power supply communication socket, a switch, a digital multimeter, a calibration control signal board, a current sampling resistor, a precision calibration adapter board and a line sequence calibration adapter board in the bottom installation, arranging a short negative pressure plate, a short positive pressure plate, a long negative pressure plate and a long negative pressure plate in the top installation, and arranging a network cable interface, a power switch and a socket in the side installation; each negative pressure plate and the positive pressure plate are connected to the digital multimeter through the corresponding adapter board and the current sampling resistor, the digital multimeter is connected to the power supply communication socket, the switch and the calibration control signal board, the power supply communication socket is connected to the network cable interface and the power switch, and the power switch is connected to the socket; the calibration control signal board can calibrate the line sequence and precision of each channel pressed on the top installation through the digital multimeter, and transmit the calibration data to the outside through the network cable interface, that is, the traditional line sequence calibration tooling and the precision calibration tooling are integrated, the structure is compact, the use of structural parts is reduced, and both calibrations can be completed with only one tooling warehousing operation, which ultimately greatly improves the space utilization of the tooling, the efficiency of the line sequence and precision calibration, and greatly reduces the tooling cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0055] Figure 1 This is one of the structural schematic diagrams of a line sequence and precision calibration tool for chemical composition equipment of the present invention.

[0056] Figure 2It is the second structure schematic view of the line sequence and precision calibration tool of the chemical formation and dispensing equipment of the application.

[0057] Figure 3 It is the structure schematic view of the bottom assembly.

[0058] Figure 4 It is the structure schematic view of the top assembly.

[0059] Figure 5 It is the first structure schematic view of the cover plate assembly.

[0060] Figure 6 It is the second structure schematic view of the cover plate assembly.

[0061] Figure 7 It is the structure schematic view of the side assembly.

[0062] Label description:

[0063] 100 - a line sequence and precision calibration tool of the chemical formation and dispensing equipment, 1 - bottom assembly, 2 - top assembly, 3 - side assembly, 11 - bottom plate, 12 - power communication seat, 13 - switch power supply, 14 - terminal group, 15 - fuse assembly, 16 - switch, 17 - digital multimeter, 18 - calibration control signal plate, 191 - calibration module, 192 - heat dissipation module, 193 - analog-digital socket, 194 - wire slot, 111 - slot, 112 - support, 113 - bushing, 1911 - current sampling resistor, 1912 - precision calibration adapter plate, 1913 - line sequence calibration adapter plate, 21 - cover plate assembly, 211 - insulating cover plate, 212 - insulating pad plate, 213 - pressure plate, 214 - connecting plate, 215 - short negative plate, 216 - short positive plate, 217 - long negative plate, 218 - long positive plate, 2121 - channel identification, 31 - side sheet metal, 32 - acrylic observation window, 33 - handle, 34 - network interface, 35 - power switch, 36 - socket, 37 - upper maintenance sheet metal. DETAILED DESCRIPTION

[0064] The embodiment of the application provides a line sequence and precision calibration tool 100 of the chemical formation and dispensing equipment, which solves the technical problem that the line sequence calibration tool and the precision calibration tool are two independent tools in the prior art, twice storage space is needed, and the processes of warehousing, power taking and the like need to be carried out respectively, time is consumed, operation is complicated, the production or maintenance efficiency is greatly affected, the space utilization rate is not high, and the waste of additional cost of structural parts is caused, the space utilization rate of the tool, the line sequence and precision calibration efficiency are greatly improved, and the technical effect that the tool cost is greatly reduced is achieved.

[0065] The technical solution in the embodiment of the present invention is to solve the above problems. The overall idea is as follows: the traditional line sequence calibration tooling and precision calibration tooling are integrated, the structure is compact, and the use of structural parts is reduced. Both calibrations can be completed with only one tooling warehousing operation, so as to improve the space utilization of the tooling, the efficiency of line sequence and precision calibration, and reduce the tooling cost.

[0066] 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.

[0067] Please refer to Figures 1 to 7 As shown, a preferred embodiment of the present invention is a tool 100 for calibrating the line sequence and accuracy of a chemical component and capacity device, comprising:

[0068] A bottom assembly 1 for mounting the main components of the calibration fixture 100;

[0069] A top assembly 2 is provided on the top of the bottom assembly 1 and connected to the bottom assembly 1;

[0070] A side member 3 is provided between the bottom member 1 and the top member 2 via bolts (not shown) and connected to the bottom member 1 for structural reinforcement and sealing;

[0071] The bottom assembly 1 comprises:

[0072] A bottom plate 11, with two symmetrical slots 111 on the left and right sides for installing the power supply and communication socket 12, and a plurality of vertical pillars 112 on the top; the bottom plate 11 is connected to the top device 2 through the pillars 112; by providing two slots 111, different voltages can be compatible;

[0073] At least one power supply and communication socket 12 is provided in the slot 111 and connected to the side device 3, and is provided with three 220V power supply probes and four network port probes;

[0074] A switching power supply 13 is provided on the bottom plate 11 by bolts and connected to the power supply communication socket 12 for converting 220V power into 24V power;

[0075] a terminal block 14 , provided on the bottom plate 11 and connected to the switching power supply 13 ;

[0076] A fuse assembly 15 is provided on the bottom plate 11, one end of which is connected to the power supply and communication socket 12, and the other end of which is connected to the power switch 35 of the side device 3;

[0077] A switch 16 is provided on the base plate 11 and connected to the power supply and communication socket 12 to serve as a transfer station for signal interaction;

[0078] A digital multimeter 17 is arranged on the bottom plate 11 and connected with the terminal group 14 and the switch 16;

[0079] A calibration control signal board 18 is arranged on the bottom plate 11 and connected with the terminal group 14, the switch 16 and the digital multimeter 17, for controlling the operation of the calibration tool 100. In practice, any control signal board with the function can be selected from the prior art, and the control program is well known to those skilled in the art.

[0080] A calibration module 191 is arranged on the bottom plate 11 and connected with the digital multimeter 17 at one end and the top assembly 2 at the other end.

[0081] Two bushings 113 are arranged at the opposite corners of the bottom plate 11, for positioning the calibration tool 100 in the warehouse.

[0082] The calibration module 191 comprises:

[0083] A plurality of current sampling resistors 1911;

[0084] A plurality of precision calibration adapter boards 1912 are connected with the digital multimeter 17 at one end through the current sampling resistors 1911 respectively and connected with the top assembly 2 at the other end.

[0085] A plurality of line sequence calibration adapter boards 1913 are connected with the digital multimeter 17 at one end and connected with the top assembly 2 at the other end.

[0086] The bottom assembly 1 further comprises:

[0087] At least one heat dissipation module 192 is arranged on the bottom plate 11 and connected with the terminal group 14, which is composed of a heat sink (not shown) and a fan (not shown), for dissipating heat of the current sampling resistors 1911.

[0088] The bottom assembly 1 further comprises:

[0089] An analog-digital socket 193 is arranged on the bottom plate 11 and connected with the power communication seat 12, for obtaining 220V power supply.

[0090] The bottom assembly 1 further comprises:

[0091] A wire slot 194 is arranged at the top end of the bottom plate 11, as a wiring channel.

[0092] The top assembly 2 comprises:

[0093] A plurality of cover plate assemblies 21 are arranged side by side on the top of the bottom assembly 1 through the support pillars 112 and connected to the bottom assembly 1 .

[0094] The cover plate assembly 21 includes:

[0095] an insulating cover plate 211;

[0096] Two insulating pads 212 are provided on the left and right sides of the insulating cover plate 211;

[0097] Three pressure-bearing plates 213 are respectively provided at the bottom ends of the insulating cover plate 211 and the insulating pad 212 to strengthen the structure;

[0098] A plurality of connecting plates 214 are respectively connected to the bottom ends of the three pressure-bearing plates 213;

[0099] Several short negative electrode pressure plates 215 are arranged side by side on the top of the insulating pad 212 and connected to the precision calibration adapter plate 1912 of the bottom device 1;

[0100] Several short positive pressure plates 216 are arranged side by side on the top of the insulating pad 212, alternately arranged with the short negative pressure plates 215, and connected to the precision calibration adapter plate 1912 of the bottom device 1; one of the short negative pressure plates 215 and the short positive pressure plate 216 serves as a channel for precision calibration;

[0101] Several long negative electrode pressure plates 217 are arranged side by side on the top of the insulating pad 212, alternately arranged with the short positive electrode pressure plates 216, and connected to the line sequence calibration adapter plate 1913 of the bottom device 1;

[0102] Several long positive pressure plates 218 are arranged side by side at the top of the insulating pad 212, alternately arranged with the long negative pressure plates 217, and connected to the line sequence calibration adapter plate 1913 installed at the bottom; one of the long negative pressure plates 217 and the long positive pressure plate 218 serves as a channel for line sequence calibration.

[0103] In a specific implementation, the short negative electrode pressure plate 215 , the short positive electrode pressure plate 216 , the long negative electrode pressure plate 217 and the long positive electrode pressure plate 218 can be connected to the corresponding adapter plates through copper bars and copper noses.

[0104] The insulating pad 212 is provided with a channel marker 2121 .

[0105] The side fitting 3 includes:

[0106] Four side sheet metals 31 are enclosed to form a rectangle;

[0107] an acrylic observation window 32 , provided on one of the side metal sheets 31 , for observing and maintaining the digital multimeter 17 ;

[0108] A plurality of handles 33 are provided on the side sheet metal 31 for carrying the calibration tool 100;

[0109] A network cable interface 34 is provided on the side metal plate 31 and is connected to the power supply and communication socket 12;

[0110] A power switch 35 is provided on the side metal plate 31 and is connected to the power supply and communication socket 12;

[0111] a socket 36 , provided on the side metal plate 31 and connected to the power switch 35 ;

[0112] Two upper maintenance sheet metals 37 are installed above the left and right side sheet metals 31 and can be independently disassembled and assembled for easy observation and maintenance.

[0113] Working principle of the present invention:

[0114] The calibration tool 100 is sent into the chemical composition device (not shown) through the handle 33, and the calibration tool 100 is positioned by the bushing 113. After the device is in place, the power supply and communication seat 12 will power the calibration tool 100. The system runs according to the established program and first performs a line sequence detection: the battery cell channel is switched through the line sequence calibration adapter plate 1913, and each channel is loaded with a battery cell or tab voltage of 3V before and after the probe of the chemical composition device is disconnected and pressed. The upper computer control system determines the wiring status according to the collected voltage results; then precision calibration is performed: each channel is loaded with voltage through the power supply to be tested on the chemical composition device (not shown), and the power supply and the calibration tool 100 measure this voltage at the same time. The test results will be directly uploaded and stored in the system through the network cable on the power supply and communication seat 12. The system will use the collected values ​​of multiple voltage points for linear fitting and calculate the calibration factor for precision verification; the current precision calibration principle is similar, except that the current value is calculated by measuring the voltage of the current sampling resistor 1911. The calibration tool 100 is connected to a notebook or other external storage device via the socket 36 and the network cable interface 34 to store data in the connected notebook in real time.

[0115] In summary, the advantages of the present invention are:

[0116] The power taking communication seat, the switch, the digital multimeter, the calibration control signal board, the current sampling resistance, the precision calibration switching board and the line sequence calibration switching board are arranged in the bottom part, the short negative electrode pressing plate, the short positive electrode pressing plate, the long negative electrode pressing plate and the long positive electrode pressing plate are arranged in the top part, the network interface, the power switch and the socket are arranged in the side part; the negative electrode pressing plate and the positive electrode pressing plate are connected with the digital multimeter through the corresponding switching board and the current sampling resistance, the digital multimeter is connected with the power taking communication seat, the switch and the calibration control signal board, the power taking communication seat is connected with the network interface and the power switch, the power switch is connected with the socket; the calibration control signal board can calibrate the line sequence and the precision of each channel of the top part through the digital multimeter, and the calibration data is transmitted to the outside through the network interface, that is, the traditional line sequence calibration tool and the precision calibration tool are integrated, the structure is compact, the use of structural parts is reduced, two calibrations can be completed only by one tool warehouse operation, and finally the space utilization of the tool, the line sequence and the precision calibration efficiency are greatly improved, and the tool cost is greatly reduced.

[0117] Although the specific embodiments of the present application are described above, those skilled in the art should understand that the specific examples described are only illustrative, and are not intended to limit the scope of the present application, and equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present application should be covered within the scope of the claims of the present application.

Claims

1. A tool for calibrating the line sequence and accuracy of chemical composition equipment, characterized by: include: A bottom mount; a top assembly, disposed on the top of the bottom assembly and connected to the bottom assembly; a side assembly, disposed between the bottom assembly and the top assembly, and connected to the bottom assembly; The bottom assembly includes: A bottom plate, with a notch symmetrically provided on both sides and a plurality of vertical supports provided on the top; the bottom plate is connected to the top through the supports; At least one power supply and communication socket, disposed in the slot and connected to the side assembly; A switching power supply is provided on the bottom plate and connected to the power supply and communication socket; a terminal block group, provided on the bottom plate and connected to the switching power supply; A fuse assembly is provided on the bottom plate, one end of the fuse assembly is connected to the power supply and communication socket, and the other end is connected to the side assembly; A switch, provided on the bottom plate and connected to the power supply and communication socket; a digital multimeter, disposed on the base plate and connected to the terminal block group and the switch; a calibration control signal board, disposed on the base plate and connected to the terminal block group, the switch, and the digital multimeter; a calibration module, disposed on the bottom plate, with one end connected to the digital multimeter and the other end connected to the top device; The calibration module includes: Several current sampling resistors; Several precision calibration adapter boards, one end of which is connected to the digital multimeter through a current sampling resistor, and the other end is connected to the top device; Several line sequence calibration adapter plates, one end of which is connected to the digital multimeter and the other end is connected to the top mount; The side assemblies include: Four side sheet metals form a rectangle; an acrylic observation window, provided on one of the side sheet metals; A plurality of handles are provided on the side sheet metal; A network cable interface is provided on the side sheet metal and is connected to the power supply and communication socket; A power switch is provided on the side sheet metal and is connected to the power supply and communication socket; a socket, provided on the side sheet metal and connected to the power switch; The two upper maintenance sheet metals are installed above the two left and right side sheet metals.

2. A line sequence and precision calibration tool for chemical content fractionation equipment according to claim 1, characterized in that: Two bushings are provided at the diagonal corners of the bottom plate.

3. The line sequence and precision calibration tool for chemical fractionation equipment according to claim 1, characterized in that: The bottom assembly further comprises: At least one heat dissipation module is provided on the bottom plate and connected to the terminal group.

4. The line sequence and precision calibration tool for chemical content fractionation equipment according to claim 1, characterized in that: The bottom assembly further comprises: An analog-to-digital socket is provided on the bottom plate and is connected to the power supply and communication socket.

5. The line sequence and precision calibration tool for chemical content fractionation equipment according to claim 1, characterized in that: The bottom assembly further comprises: A wire trough is arranged on the top of the bottom plate.

6. The line sequence and precision calibration tool for chemical content fractionation equipment according to claim 1, characterized in that: The top package includes: A plurality of cover plate assemblies are arranged side by side on the top of the bottom assembly through the support columns and are connected to the bottom assembly.

7. A line sequence and precision calibration tool for chemical content fractionation equipment according to claim 6, characterized in that: The cover plate assembly comprises: an insulating cover plate; Two insulating pads are provided on the left and right sides of the insulating cover plate; Three pressure-bearing plates, respectively provided at the bottom ends of the insulating cover plate and the insulating pad; A plurality of connecting plates are respectively connected to the bottom ends of the three pressure-bearing plates; Several short negative electrode pressing plates are arranged side by side on the top of the insulating pad and connected to the bottom; Several short positive electrode pressing plates are arranged side by side on the top of the insulating pad, alternately arranged with the short negative electrode pressing plates, and connected to the bottom assembly; Several long negative electrode pressing plates are arranged side by side on the top of the insulating pad, alternately arranged with the short positive electrode pressing plates, and connected to the bottom assembly; A plurality of long positive electrode pressing plates are arranged side by side on the top of the insulating pad, alternately arranged with the long negative electrode pressing plates, and connected to the bottom.

8. The line sequence and precision calibration tool for chemical content fractionation equipment according to claim 7, characterized in that: The insulating pad is provided with a channel mark.

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