阅读说明：本技术 一种检测工具用校验工装 (Checking tool for detection tool ) 是由 刘作斌 刘震 赖秋凤 郭金鸿 叶文 于 2019-09-27 设计创作，主要内容包括：本发明提供一种检测工具用校验工装,包括调节部装及测试部装；所述调节部装包括一固定底板及复数个检测铜排,所述固定底板固设于测试部装的顶部；各所述检测铜排设于固定底板的顶部；所述测试部装包括一外壳体、一电阻护罩、两模拟电芯电阻组件以及两切换开关；所述电阻护罩固设于外壳体内部的前端,两所述模拟电芯电阻组件及切换开关均安装于电阻护罩的内部；每所述模拟电芯电阻组件均与一切换开关配合使用；各所述检测铜排与所述切换开关电连接。本发明的优点在于：可很好的兼容多种款式的模组检测设备的校验,兼容性高；可以方便对模拟电芯电阻组件中模拟电芯电阻进行更换；可模拟出多种不同阻值的测试。(The invention provides a checking tool for a detection tool, which comprises an adjusting part and a testing part, wherein the adjusting part is arranged on the adjusting part; the adjusting part comprises a fixed bottom plate and a plurality of detection copper bars, and the fixed bottom plate is fixedly arranged at the top of the testing part; each detection copper bar is arranged at the top of the fixed bottom plate; the testing part comprises an outer shell, a resistance shield, two simulation cell resistance components and two change-over switches; the resistance shield is fixedly arranged at the front end inside the outer shell, and the two simulation cell resistance components and the change-over switch are arranged inside the resistance shield; each simulation electric core resistance component is matched with a switch for use; each detection copper bar is electrically connected with the change-over switch. The invention has the advantages that: the module detection equipment can be well compatible with the verification of module detection equipment of various styles, and the compatibility is high; the simulated cell resistor in the simulated cell resistor assembly can be conveniently replaced; it can simulate the test of many different resistances.)

1. The utility model provides a detect check-up frock for instrument which characterized in that: the checking tool comprises an adjusting part and a testing part;

the adjusting part comprises a fixed bottom plate and a plurality of detection copper bars, and the fixed bottom plate is fixedly arranged at the top of the testing part; each detection copper bar is arranged at the top of the fixed bottom plate;

the testing part comprises an outer shell, a resistance shield, two simulation cell resistance components and two change-over switches; the resistance shield is fixedly arranged at the front end inside the outer shell, and the two simulation cell resistance assemblies and the two change-over switches are arranged inside the resistance shield; each simulation battery cell resistance assembly is matched with one selector switch for use, and gear switching is carried out through the selector switch; a resistance value notch is formed in the outer surface of the outer shell at a position corresponding to each simulation cell resistor assembly, and a switch switching notch is formed in a position corresponding to each switching switch;

each detection copper bar is electrically connected with the change-over switch.

2. The inspection tool of claim 1, wherein: the fixed bottom plate is provided with a plurality of long slotted holes along the length direction, and each detection copper bar is locked on the long slotted holes.

3. The inspection tool of claim 1, wherein: each detection copper bar comprises a first detection copper sheet, a second detection copper sheet and a rotating pin; the first detection copper sheet is locked on the upper surface of the fixed bottom plate, and one end of the first detection copper sheet is provided with a step for downward adjustment; one end of the second detection copper sheet is connected with the step through the rotating pin, and the second detection copper sheet rotates by 360 degrees through the rotating pin; the thickness of the second detection copper sheet is equal to the height of the step.

4. The inspection tool of claim 3, wherein: two ends of the second detection copper sheet are respectively provided with a counter bore, and the first detection copper sheet is provided with two threaded holes matched with the counter bores.

5. The inspection tool of claim 1, wherein: the checking tool further comprises two third detection copper sheets, the two third detection copper sheets are fixedly arranged on the inner walls of the two sides of the outer shell respectively, and a detection notch is formed in the position, corresponding to each third detection copper sheet, of the outer surface of the outer shell; the third detection copper sheet is electrically connected with the change-over switch.

6. The inspection tool of claim 1, wherein: each simulation cell resistor assembly comprises a simulation cell resistor, a resistor mounting seat and a resistor cover plate; the simulation cell resistor is installed in the resistor shield through the resistance notch, and the resistor cover plate covers the resistance notch; one end of the resistor mounting seat is fixedly connected with the simulation electric core resistor, and the other end of the resistor mounting seat is fixedly connected with the resistor cover plate.

7. The inspection tool of claim 1, wherein: the change-over switch comprises a change-over plate, a deflector rod, a slide rail, a slide block, a first fixed seat, a second fixed seat and two side baffles;

the front end of the second fixed seat is provided with a sliding groove opening, and the sliding block is fixedly arranged on the sliding groove opening; the slide rail is connected with the slide block in a sliding manner, and the two side baffles are fixedly arranged at two ends of the slide rail respectively; the first fixed seat is fixedly connected with the front end of the second fixed seat, and the deflector rod is fixedly arranged at the front end of the first fixed seat;

four detection leads are symmetrically arranged on each side baffle in pairs, each detection lead penetrates through the side baffle, one end of each detection lead is connected with the simulation cell resistor assembly, and the other end of each detection lead is left empty; the switching plate is fixedly arranged at the rear end of the second fixed seat, and four conductive bars are arranged on two sides of the switching plate corresponding to the detection lead;

each detection copper bar is electrically connected with the conductive bar.

8. The inspection tool of claim 1, wherein: and two ends of the resistance notch are respectively provided with an arc groove.

9. The inspection tool of claim 1, wherein: every all be provided with a gear indicator board on the switch switching notch.

Technical Field

The invention relates to the field of lithium battery testing, in particular to a checking tool for a detection tool.

Background

The comprehensive performance detection is carried out on the lithium battery module or the battery pack when the lithium battery module or the battery pack leaves a factory, so that potential safety risks caused in a battery assembling process are avoided, and the performance utilization rate is improved. When testing lithium cell module or battery package, the testing tool adopts probe and professional detecting instrument to carry out joint detection more. However, the detection environment is different, the temperature is also different every day, the difference between winter and summer is large, and the detection precision is often interfered by the difference. Meanwhile, damage to the instrumentation is often imperceptible and can only be detected by periodic inspection of the instrumentation. In order to avoid the situation that a detection instrument, a probe and the like are damaged in the mass production process, but the test is still carried out, and to distinguish whether the data problem is caused by the instrument or the performance problem of the lithium battery, when the test tool is used for detection, a standard product which completely meets the standard needs to be prepared for verification, namely, the test result of the test tool is verified through the standard product to ensure that the test tool is not damaged, and the like, wherein the standard product is often called a verification tool and is named as a master.

However, the existing verification tool has the following defects during verification: 1. the compatibility is low, the sizes of all modules are different, and the calibration of multi-type or multi-size module detection equipment cannot be compatible; 2. the resistance value of the battery for calibration cannot be replaced, and the resistance value is inconvenient to replace or maintain in the later period; 3. the wiring layout is complex and the maintenance is difficult.

Disclosure of Invention

The invention aims to solve the technical problem of providing a calibration tool for a detection tool, which is used for calibrating module detection equipment compatible with various styles and is convenient for resistance value replacement.

The invention is realized by the following steps: a check tool for a detection tool comprises an adjusting part and a testing part;

the adjusting part comprises a fixed bottom plate and a plurality of detection copper bars, and the fixed bottom plate is fixedly arranged at the top of the testing part; each detection copper bar is arranged at the top of the fixed bottom plate;

the testing part comprises an outer shell, a resistance shield, two simulation cell resistance components and two change-over switches; the resistance shield is fixedly arranged at the front end inside the outer shell, and the two simulation cell resistance assemblies and the two change-over switches are arranged inside the resistance shield; each simulation battery cell resistance assembly is matched with one selector switch for use, and gear switching is carried out through the selector switch; a resistance value notch is formed in the outer surface of the outer shell at a position corresponding to each simulation cell resistor assembly, and a switch switching notch is formed in a position corresponding to each switching switch;

each detection copper bar is electrically connected with the change-over switch.

Furthermore, a plurality of long slotted holes are formed in the fixed bottom plate along the length direction, and the detection copper bars are locked on the long slotted holes.

Furthermore, each detection copper bar comprises a first detection copper sheet, a second detection copper sheet and a rotating pin; the first detection copper sheet is locked on the upper surface of the fixed bottom plate, and one end of the first detection copper sheet is provided with a step for downward adjustment; one end of the second detection copper sheet is connected with the step through the rotating pin, and the second detection copper sheet rotates by 360 degrees through the rotating pin; the thickness of the second detection copper sheet is equal to the height of the step.

Furthermore, two ends of the second detection copper sheet are respectively provided with a counter bore, and the first detection copper sheet is provided with two threaded holes matched with the counter bores.

Furthermore, the checking tool further comprises two third detection copper sheets, the two third detection copper sheets are respectively and fixedly arranged on the inner walls of the two sides of the outer shell, and a detection notch is formed in the position, corresponding to each third detection copper sheet, on the outer surface of the outer shell; the third detection copper sheet is electrically connected with the change-over switch.

Furthermore, each analog cell resistor assembly comprises an analog cell resistor, a resistor mounting seat and a resistor cover plate; the simulation cell resistor is installed in the resistor shield through the resistance notch, and the resistor cover plate covers the resistance notch; one end of the resistor mounting seat is fixedly connected with the simulation electric core resistor, and the other end of the resistor mounting seat is fixedly connected with the resistor cover plate.

Furthermore, the change-over switch comprises a change-over plate, a deflector rod, a slide rail, a slide block, a first fixed seat, a second fixed seat and two side baffles;

the front end of the second fixed seat is provided with a sliding groove opening, and the sliding block is fixedly arranged on the sliding groove opening; the slide rail is connected with the slide block in a sliding manner, and the two side baffles are fixedly arranged at two ends of the slide rail respectively; the first fixed seat is fixedly connected with the front end of the second fixed seat, and the deflector rod is fixedly arranged at the front end of the first fixed seat;

four detection leads are symmetrically arranged on each side baffle in pairs, each detection lead penetrates through the side baffle, one end of each detection lead is connected with the simulation cell resistor assembly, and the other end of each detection lead is left empty; the switching plate is fixedly arranged at the rear end of the second fixed seat, and four conductive bars are arranged on two sides of the switching plate corresponding to the detection lead;

each detection copper bar is electrically connected with the conductive bar.

Furthermore, two ends of the resistance notch are respectively provided with an arc groove.

Furthermore, each switch switching notch is provided with a gear indicating plate.

The invention has the following advantages: 1. the adjusting part is provided with a plurality of detection copper bars, each detection copper bar is designed to comprise a first detection copper sheet and a second detection copper sheet, and the position of the second detection copper sheet can be rotated according to the size of the module which is actually simulated, so that the calibration of the module detection equipment with various styles can be well compatible, and the compatibility is high; 2. the resistance notch is formed in the outer shell, so that the simulated cell resistor in the simulated cell resistor assembly can be conveniently replaced; 3. 4 gears are combined through the two change-over switches, so that various tests with different resistance values can be simulated and verified; 4. a certain space is reserved in the outer shell, so that wiring and wiring can be conveniently carried out.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic block diagram of a voltage withstand test performed on a single conventional battery cell.

Fig. 2 is a schematic block diagram of an insulation test performed by a conventional module.

Fig. 3 is a schematic structural view of a checking tool for a detection tool according to an embodiment of the present invention.

Fig. 4 is a second schematic structural diagram of a checking tool for a detection tool according to the present invention.

Fig. 5 is a schematic view of the structure of the regulating part in the present invention.

FIG. 6 is a schematic view of the structure of the test section of the present invention.

FIG. 7 is an exploded view of the test section of the present invention.

Fig. 8 is a schematic structural diagram of the diverter switch of the present invention.

Description of reference numerals:

100-checking tool, 200-module, 201-electric core, 300-detection device, 1-adjusting part, 11-fixed bottom plate, 111-long slotted hole, 12-detection copper bar, 121-first detection copper sheet, 1211-step, 1212-threaded hole, 122-second detection copper sheet, 1221-counter bore, 123-rotating pin, 2-testing part, 21-outer shell, 21 a-front sealing plate, 21 b-rear sealing plate, 21 c-bottom plate, 21 d-left side plate, 21 e-right side plate, 211-resistance notch, 2111-arc notch, 212-switch switching notch, 213-detection notch, 22-resistance shield, 23-simulation electric core resistance component, 231-simulation electric core resistance, 232-resistance mounting seat, 233-resistance cover plate, 24-change-over switch, 241-change-over plate, 242-deflector rod, 243-slide rail, 244-slide block, 245-first fixed seat, 246-second fixed seat, 2461-slide notch, 247-side baffle, 248-detection lead, 249-conductive strip, 3-third detection copper sheet and 4-gear indicator plate.

Detailed Description

Referring to fig. 1 to 8, in a preferred embodiment of a checking tool 100 for a detection tool according to the present invention, first, a testing principle of a detection device 300 is described, wherein the testing principle of the detection device 300 mainly includes the following two types:

first, as shown in fig. 1, the schematic diagram shows a link of performing a withstand voltage or insulation test on a single electric core, and the schematic diagram is a left side view; the module 200 is placed on a horizontal plane, the battery cell 201 is located inside the module 200, the protruding part of the battery cell 201 is an electrode tab, a test line needs to be led out from the side surface of the battery cell 201 to be connected to one end of the detection device 300 during testing, the test line is led out from the battery cell tab to be connected to the other end of the detection device 300, and voltages with different values are applied to two sides of a single battery cell 201 by the detection device 300, so that the voltage withstanding value or the insulation value of the single battery cell 201 is tested;

secondly, as shown in fig. 2, the schematic diagram shows a link of performing a voltage withstand or insulation test on the module 200, and is a top view, the module 200 is placed on a horizontal plane, the electric cells 201 are placed in four rows inside the module 200, the electric cells 201 in odd number are connected in sequence from left to right, a test line is led out to one end of the detection device 300, the electric cells 201 in even number are connected, and the test line is led out to the other end of the detection device 300, so that voltages with different values are applied between the adjacent electric cells 201 in the module 200 through the detection device 300, and thus, an insulation value or a voltage withstand value between the adjacent electric cells in the module 200 is detected.

The invention relates to a checking tool 100 for a detection tool, which is designed based on the two testing principles, wherein the checking tool 100 comprises an adjusting part assembly 1 and a testing part assembly 2;

the adjusting part device 1 comprises a fixed bottom plate 11 and a plurality of detection copper bars 12, and the fixed bottom plate 11 is fixedly arranged at the top of the testing part device 2; each detection copper bar 12 is arranged at the top of the fixed bottom plate 11; the detection copper bar 12 is used for contacting with a probe (not shown) on the detection equipment so as to verify the detection equipment;

the testing part 2 comprises an outer shell 21, a resistance shield 22, two simulation cell resistance components 23 and two change-over switches 24; the resistance shield 22 is fixedly arranged at the front end inside the outer shell 21, the two analog cell resistance assemblies 23 and the two change-over switches 24 are both arranged inside the resistance shield 22, and the resistance shield 22 can protect the analog cell resistance assemblies 23 and the change-over switches 24; each simulation battery cell resistor assembly 23 is used in cooperation with one of the switches 24, and gear switching is performed through the switches 24 to verify different gears; a resistance notch 211 is formed in the outer surface of the outer casing 21 at a position corresponding to each analog cell resistor assembly 23, and a switch switching notch 212 is formed in a position corresponding to each switch 24; the purpose of the resistance notch 211 is, among other things: the analog cell resistor 231 in the analog cell resistor assembly 23 can be replaced conveniently; the purpose of the switch switching slot 212 is to: the switching operation of the switch 24 can be facilitated;

each of the detection copper bars 12 is electrically connected to the switch 24.

In the present invention, the outer casing 21 is formed by combining a front sealing plate 21a, a rear sealing plate 21b, a bottom plate 21c, a left side plate 21d and a right side plate 21e, and the resistor shield 22 is fixed on the front sealing plate 21a, and a certain space is left between the resistor shield 22 and the rear sealing plate 21b for conveniently routing and wiring. The outer periphery of the outer case 21 may be designed according to the size of a loading tray (not shown) so as to fit the loading tray of a production line in a specific use.

The fixed base plate 11 is provided with a plurality of long slots 111 along the length direction, and each detection copper bar 12 is locked on the long slots 111. Because the long slot hole 111 is arranged on the fixed bottom plate 11, the position of the detection copper bar 12 locked on the long slot hole 111 can be conveniently adjusted when the device is used in particular, so that the purpose of simulating different modules is achieved.

Please refer to fig. 5, each of the detecting copper bars 12 includes a first detecting copper sheet 121, a second detecting copper sheet 122 and a rotating pin 123; the first detecting copper sheet 121 is locked and attached to the upper surface of the fixed base plate 11, and in a specific implementation, a screw or a bolt may be used to lock and attach the first detecting copper sheet 121 to the slotted hole 111 of the fixed base plate 11; one end of the first detecting copper sheet 121 is provided with a step 1211 for downward adjustment; one end of the second detecting copper sheet 122 is connected to the step 1211 through the rotation pin 123, and the rotation of the second detecting copper sheet 122 by 360 degrees is realized through the rotation pin 123; the thickness of the second detection copper sheet 122 is equal to the height of the step 1211.

When the test device is used, when a relatively wide module needs to be simulated, the second detection copper sheet 122 needs to be rotated by 180 degrees, so that the width capable of meeting the test requirement is formed by combining the second detection copper sheet 122 and the first detection copper sheet 121. Meanwhile, because the thickness of the second detection copper sheet 122 is designed to be equal to the height of the step 1211 during design, after the second detection copper sheet 122 is rotated by 180 degrees, the second detection copper sheet 122 can move down to the step 1211 along the rotation pin 123, that is, after the second detection copper sheet 122 is rotated by 180 degrees, the upper surfaces of the second detection copper sheet 122 and the first detection copper sheet 121 are located on the same horizontal plane, so that the probes on the detection device can be effectively ensured to be in good contact with the second detection copper sheet 122 and the first detection copper sheet 121, and the probes cannot be in normal contact due to the height difference. When the second detecting copper sheet 122 needs to be folded, the second detecting copper sheet 122 can be adjusted to the original position only by lifting the second detecting copper sheet 122 upwards and rotating the second detecting copper sheet by 180 degrees.

Two ends of the second detecting copper sheet 122 are respectively provided with a counter bore 1221, and the first detecting copper sheet 121 is provided with two threaded holes 1212 matched with the counter bores 1221. When the detection device is used, the second detection copper sheet 122 can be locked and fixed on the first detection copper sheet 121 through bolts or screws, and when the second detection copper sheet 122 needs to be rotated, the second detection copper sheet 122 can be rotated for 360 degrees only by loosening the locked bolts or screws; similarly, when the second detecting copper sheet 122 does not need to be rotated, the second detecting copper sheet 122 can be locked to the first detecting copper sheet 121 by bolts or screws.

The verification tool 100 further comprises two third detection copper sheets 3, the two third detection copper sheets 3 are respectively and fixedly arranged on the inner walls of the two sides of the outer shell 21, and a detection notch 213 is formed in the outer surface of the outer shell 21 at a position corresponding to each third detection copper sheet 3; the third detection copper sheet 3 is electrically connected with the switch 24. In a specific implementation, two third detecting copper sheets 3 may be respectively disposed on the inner sidewalls of the front sealing plate 21a and the rear sealing plate 21b, and the outer surfaces of the front sealing plate 21a and the rear sealing plate 21b are respectively provided with one detecting notch 213. In the present invention, the third detecting copper sheet 3 is provided for the purpose of: the simulation operation can be conveniently carried out on a single battery cell of the module when needed, and at the moment, a probe of the detection equipment needs to be in contact with the third detection copper sheet 3; for the detection of a single battery cell, the detection equipment only needs to be provided with one probe without carrying a probe carrier plate, so that the verification can be realized by holding the detection equipment by hand and contacting the probe with the third detection copper sheet 3. The purpose of arranging the two third detection copper sheets 3 is: since the electric cores of the partial modules may be in opposite positions, the third detection copper sheets 3 are respectively arranged on the inner side walls of the front sealing plate 21a and the rear sealing plate 21b, so that the practical operation is very convenient.

Each of the analog cell resistor assemblies 23 includes an analog cell resistor 231, a resistor mounting base 232, and a resistor cover 233; the analog cell resistor 231 is installed in the resistor shield 22 through the resistance slot 211, and the resistor cover plate 233 covers the resistance slot 211; one end of the resistor mounting base 232 is fixedly connected with the simulation cell resistor 231, and the other end is fixedly connected with the resistor cover plate 233. In specific use, when the resistance value is not of reference value due to the influence of environmental factors and the like, the whole simulation cell resistor assembly 23 can be taken out through the resistor cover plate 233, and the simulation cell resistor 231 is replaced.

In order to facilitate replacement, the two ends of the resistance notch 211 are respectively provided with an arc slot 2111, so that when the analog cell resistor 231 needs to be replaced, an operator can stretch a hand into the arc slot 2111 and pull out the whole analog cell resistor assembly 23.

Referring to fig. 8, the switch 24 includes a switch plate 241, a lever 242, a slide rail 243, a slide 244, a first fixing seat 245, a second fixing seat 246 and two side baffles 247;

a sliding notch 2461 is formed in the front end of the second fixing seat 246, and the sliding block 244 is fixedly arranged on the sliding notch 2461; the slide rail 243 is slidably connected with the slide block 244, and the two side baffles 247 are respectively and fixedly arranged at two ends of the slide rail 243; the first fixed seat 245 is fixedly connected with the front end of the second fixed seat 246, and the shift lever 242 is fixedly arranged at the front end of the first fixed seat 245;

four detection leads 248 are symmetrically arranged on each side baffle 247 in pairs, each detection lead 248 penetrates through the side baffle 247, one end of each detection lead 248 is connected with the analog cell resistor assembly 23, specifically, connected with pins on the analog cell resistor 231 (different detection leads 248 are connected with different pins on the analog cell resistor 231), and the other end is left empty and used for contacting with a conductive strip on the switching plate 241 during switching; the switching plate 241 is fixedly disposed at the rear end of the second fixing seat 246, and four conductive bars 249 are disposed on two sides of the switching plate 241 corresponding to the detection leads 248;

each of the detection copper bars 12 is electrically connected to the conductive bar 249. When the testing device works, the switching board 241 can be pushed to slide along the slide rail 243 through the pulling rod 242, and the conductive strips 249 on the switching board 241 are in contact connection with the four detection leads 248 on any side, so that different resistance value tests can be simulated.

Each switch switching notch 212 is provided with a gear indicating plate 4.

In the specific implementation of the present invention, each of the switches 24 has two gears, and 4 gears can be combined by the two switches 24, so that the switching between 4 states can be realized. The simulated cell resistors 231 in the two simulated cell resistor assemblies 23 are designed according to the resistance values of the standard cells, wherein one of the two simulated cell resistors 231 can simulate the resistance values of the NG cell and the OK cell, and the other simulated cell resistor 231 can simulate the resistance value for the insulation test and the resistance value for the withstand voltage test; therefore, one of the two shift indicator plates 4 is used to indicate the NG and OK shift positions, and the other is used to indicate the insulation and withstand voltage shift positions.

The verification tool 100 of the present invention is mainly used for verifying detection equipment, the detection equipment carries a probe (not shown) through a probe carrier plate (not shown), the probe carrier plate can be designed in a matching manner according to the model of the module, and when the detection equipment performs detection, detection data can be fed back to a corresponding instrument (not shown), such as a pressure resistance instrument, through the probe, so as to implement detection of the module.

When the verification tool 100 is used, the verification tool 100 needs to be placed on a loading tray (not shown), and the position of the detection copper bar 12 on the verification tool 100 is adjusted in advance according to the detection size of the probe carrier plate, that is, if the width needs to be expanded through the second detection copper sheet 122, the second detection copper sheet 122 is rotated by 180 degrees; if not, the second copper detection sheet 122 is collected;

shifting the two change-over switches 24 to corresponding check gears, such as an insulation-OK gear, according to test requirements, starting the equipment, allowing the probes on the probe carrier plate to contact the corresponding detection copper bars 12 on the check tool 100, and performing insulation detection; by observing the display value on the insulation testing instrument and comparing the display value with the insulation value of the OK gear on the specification, if the display value is in a qualified range, the probe and the instrument are indicated that the insulation-OK gear is detected to be free of problems; then, the two change-over switches 24 can be switched to the insulation-NG gear, and the actions are repeated, so that whether the probe and the instrument operate normally can be detected; similarly, the pressure-resistant-OK shift and the pressure-resistant-NG shift can be detected; after the verification is completed, the verification tool 100 needs to be placed in a storage cabinet (not shown) and a real module test is started using a detection device.

In summary, the invention has the following advantages:

1. the adjusting part is provided with a plurality of detection copper bars, each detection copper bar is designed to comprise a first detection copper sheet and a second detection copper sheet, and the position of the second detection copper sheet can be rotated according to the size of the module which is actually simulated, so that the calibration of the module detection equipment with various styles can be well compatible, and the compatibility is high; 2. the resistance notch is formed in the outer shell, so that the simulated cell resistor in the simulated cell resistor assembly can be conveniently replaced; 3. 4 gears are combined through the two change-over switches, so that various tests with different resistance values can be simulated and verified; 4. a certain space is reserved in the outer shell, so that wiring and wiring can be conveniently carried out.

Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.