CN219039310U - Battery testing device - Google Patents

Abstract

The battery testing device provided by the utility model can comprise: battery mounting board and voltage test board. Wherein the battery mounting plate is detachably connected with the voltage test plate, and at least one mounting slot is arranged on the battery mounting plate and can be used for fixing a battery assembly. The voltage test board is provided with an interface panel, the interface panel is provided with a battery connector, a connecting hole with the shape matched with the battery connector is formed in the mounting slot, and after the battery mounting board and the voltage test board are fixed, each battery connector passes through the connecting hole and is connected with a battery assembly fixed in the mounting slot. The voltage test board is also provided with a test part, a first input end of the test part is connected with one end of a connecting column of the interface panel, the other end of the connecting column is connected with a battery connector, and a second input end of the test part is connected with a threshold voltage source. The voltage monitoring and alarm signal sending can be automatically carried out, and the accuracy is higher while the manpower investment is reduced.

Description

Battery testing device

Technical Field

The utility model relates to the technical field of product testing, in particular to a battery testing device.

Background

For products such as aviation, aerospace, automobiles and the like which are powered by adopting batteries, when the batteries are tested, the batteries are generally packaged in structural members, the random vibration (triaxial) requirements need to be met as a whole, and in the vibration process, the voltage of a battery assembly is monitored in real time to judge whether the voltage of the batteries is normal or not.

The existing battery testing mode is to fix a battery assembly on a vibrating table, set random vibration conditions of the vibrating table, monitor the voltage value of the battery in real time manually through a digital multimeter in the vibration process, and compare the measured voltage value with a standard voltage value to judge whether the battery is qualified. The test mode relies on manual detection, so that a large amount of manpower is needed to put into the test for a long time, and errors are easy to occur.

Disclosure of Invention

In order to solve the above technical problems, the present utility model provides a battery testing device, including: a battery mounting plate and a voltage test plate;

the battery mounting plate is detachably connected with the voltage testing plate, at least one mounting slot is arranged on the battery mounting plate, and the mounting slot is used for fixing a battery assembly;

the voltage testing board is provided with an interface panel, the interface panel is provided with a battery connector, a connecting hole with a shape matched with the battery connector is formed in the mounting slot, the projection of the mounting slot along the first direction is overlapped with the projection of the battery connector along the first direction, and after the battery mounting board and the voltage testing board are fixed, each battery connector passes through the connecting hole and is connected with the battery assembly fixed in the mounting slot;

the voltage test board is further provided with a test part, the projection of the test part along the first direction is not overlapped with the projection of the battery mounting board along the first direction, a first input end of the test part is connected with one end of a connecting column of the interface panel, the other end of the connecting column is connected with the battery connector, and a second input end of the test part is connected with a threshold voltage source.

Further, the mounting slot further comprises a first groove and a second groove, the first groove and the second groove are respectively arranged on two opposite surfaces of the voltage test board, the size of the first groove is larger than that of the second groove, and the second groove faces the interface panel;

each battery connector comprises a switching small plate and a boss, the boss is arranged on the switching small plate along the first direction, the boss is arranged in the connecting hole in a penetrating mode and connected with the battery assembly in the first groove, and the switching small plate is accommodated in the second groove.

Further, the mounting slot further includes at least one wiring groove disposed on a surface of the voltage test board facing the interface panel, the at least one wiring groove extending along a direction in which the voltage test board extends to an edge of the voltage test board near the test portion, and at least two adjacent second grooves and a nearest wiring groove are communicated.

Further, the test section includes: the projection of the test circuit board in the first direction is overlapped with the projection of the display panel in the first direction;

the first input end of the test circuit board is connected with the switching small board through the wiring groove, the second input end of the test circuit board is connected with the threshold voltage source, and the output end of the test circuit board is connected with the display panel.

Further, the test part comprises a lower housing including an opening toward the test circuit board, the test circuit board being disposed in the lower housing, the display panel being disposed at the opening;

four connecting terminals are arranged on the periphery of the test circuit board, a first connecting terminal and a second connecting terminal are arranged oppositely, a third connecting terminal and a fourth connecting terminal are arranged oppositely, the first connecting terminal and the second connecting terminal are used as a first input end and are connected with the switching small board, the third connecting terminal is used as a second input end and is connected with the threshold voltage source, and the fourth connecting terminal is used as an output end and is connected with the display panel.

Further, the transfer small plate is provided with two connecting posts in a second direction perpendicular to the first direction, wherein the first connecting post is used as an anode, the second connecting post is used as a cathode, and the first connecting post and the second connecting post are connected to the first connecting terminal or the second connecting terminal through wires.

Further, the test circuit board further comprises: the battery voltage acquisition circuit, the threshold voltage acquisition circuit and the comparison circuit;

the input end of each battery voltage acquisition circuit is connected with a corresponding switching small plate through the first connecting terminal or the second connecting terminal, the output end of each battery voltage acquisition circuit is connected with a corresponding first input end of one comparison circuit, the second input end of each comparison circuit is connected with the output end of the threshold voltage acquisition circuit, the input end of the threshold voltage acquisition circuit is connected with the threshold voltage source through the third connecting terminal, and the output end of each comparison circuit is connected with the display panel through the fourth connecting terminal.

Further, indicator lamps which are matched with the number of the switching small plates and are arranged in sequence are arranged on the display panel, each indicator lamp corresponds to one switching small plate, and the output end of each comparison circuit is connected with one indicator lamp through the fourth connection terminal;

the display panel is also provided with first control switches which are matched with the switching small plates in number, and each first control switch is connected to a passage of a first connecting column or a second connecting column of the corresponding switching small plate;

and the display panel is also provided with first display screens, the number of which is matched with that of the battery connectors, and each first display screen is connected with the output end of a corresponding battery voltage acquisition circuit.

Further, a rheostat is further arranged on the test circuit board, the rheostat is connected with the input end of the threshold voltage acquisition circuit, a control knob is further arranged on the display panel, the control knob is connected with the control end of the rheostat, a second display screen is further arranged on the display panel, and the second display screen is connected with the output end of the threshold voltage acquisition circuit;

and a second control switch is further arranged on the display panel and connected to the input end of the threshold voltage acquisition circuit.

Further, a first fixing hole is formed in the periphery of the connecting hole, and the battery assembly and the battery mounting plate are detachably connected through the first fixing hole;

the voltage test board is provided with second fixing holes which are arranged at intervals, the battery mounting board and the position corresponding to the second fixing holes are provided with third fixing holes, and the fastening screw is used for fixing the battery mounting board and the voltage test board on the vibration test board after being combined through the second fixing holes and the third fixing holes.

As can be seen from the above technical solution, the battery testing device provided by the present utility model may include: battery mounting board and voltage test board. The battery mounting plate and the voltage testing plate are detachably connected, the battery mounting plate and the voltage testing plate can be arranged on the vibration testing table after being connected, at least one mounting slot is arranged on the battery mounting plate, and the mounting slot is used for fixing a battery assembly. An interface panel is arranged on the voltage test board, a battery connector is arranged on the interface panel, a connecting hole with the shape matched with the battery connector is arranged in the mounting slot, the projection of the mounting slot along the first direction is overlapped with the projection of the battery connector along the first direction, and after the battery mounting plate and the voltage test board are fixed, each battery connector passes through the connecting hole and is connected with a battery assembly fixed in the mounting slot. The voltage test board is also provided with a test part, the projection of the test part along the first direction is not overlapped with the projection of the battery mounting board along the first direction, the first input end of the test part is connected with one end of a connecting column of the interface panel, the other end of the connecting column is connected with the battery connector, and the second input end of the test part is connected with the threshold voltage source. The battery testing device can automatically monitor voltage through the testing part when the battery testing device is tested after being fixed on the vibration testing table, a plurality of batteries can be tested at the same time, and the accuracy is improved while the manpower input is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a split block diagram of portions of a battery testing device provided in accordance with an exemplary embodiment;

fig. 2 is an overall structural view of a battery testing device provided according to an exemplary embodiment;

FIG. 3 is a block diagram of a test circuit board provided in accordance with an exemplary embodiment;

FIG. 4 is a mounting block diagram of a test circuit board provided in accordance with an exemplary embodiment;

FIG. 5 is a block diagram of a display panel provided in accordance with an exemplary embodiment;

FIG. 6 is a rear block diagram of a voltage test board provided in accordance with an exemplary embodiment;

FIG. 7 is a block diagram of an interface panel provided in accordance with an exemplary embodiment;

FIG. 8 is a circuit block diagram of a test circuit board provided in accordance with an exemplary embodiment;

fig. 9 is another circuit configuration diagram of a test circuit board provided according to an exemplary embodiment.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 7, an embodiment of the present utility model provides a battery testing apparatus, which may include: a battery mounting plate 1 and a voltage test plate 2.

Wherein battery mounting panel 1 and voltage test board 2 can dismantle the connection, set up at least one installation slot 11 on the battery mounting panel 1, and installation slot 11 is used for fixed battery pack.

The voltage test board 2 is provided with an interface panel 21, the interface panel 21 is provided with a battery connector 23, a connecting hole 12 with a shape matched with the battery connector 23 is arranged in the mounting slot 11, the projection of the mounting slot 11 along the first direction is overlapped with the projection of the battery connector 23 along the first direction, and after the battery mounting board 1 and the voltage test board 2 are fixed, each battery connector 21 passes through the connecting hole 12 and is connected with a battery assembly fixed in the mounting slot 11.

The voltage test board 2 is further provided with a test part 3, the projection of the test part 3 along the first direction is not overlapped with the projection of the battery mounting board 1 along the first direction, the first input end of the test part 3 is connected with one end of a connecting column 2102 of the interface panel 21, the other end of the connecting column 2102 is connected with the battery connector 21, the second input end of the test part 3 is connected with a threshold voltage source, and the test part 3 sends out an alarm signal when the voltage and the threshold voltage of the battery assembly are different.

Specifically, the number of the mounting slots 11 can be set on the battery mounting board 1 according to the test requirement of the battery assembly, and generally, 8 mounting slots 11 can be set on one battery mounting board 1 to fix the battery assembly, and four first fixing holes 13 (threaded holes) are set on the peripheral side of the connecting hole 12, so that the battery assembly is fixed in the mounting slots 11 through bolts to prevent the battery assembly from moving in the vibration test process. The voltage test board 2 is provided with second fixing holes 22 which are arranged at intervals, the corresponding battery mounting board 1 and the corresponding positions of the second fixing holes 22 are provided with third fixing holes 14, and the battery mounting board 1 and the voltage test board 2 are combined and then fixed on the vibration test board through the second fixing holes 22 and the third fixing holes 14 by fastening screws. The battery pack of the power battery used in the general aircraft and vehicle is not large, and the length, width and height of the voltage test board 2 can be set to 400mm, 300mm and 60mm respectively. And 12M 12 threaded holes are reserved on the voltage test board 2 and the battery mounting board 1, so that the battery test device and the vibration test table board are fixed. Referring to fig. 7, interface fixing holes 2103 are provided at four corners of the interface panel 21, the interface panel 21 is fixed to the voltage test board 2 by bolts, a battery connector 23 is provided to the interface panel 21, positive and negative electrodes of the battery are connected, and the battery connector 23 is connected to the test unit 3 by a connection column 2102.

Each battery connector 23 includes a transfer tab 2103 and a boss 2101, the boss 2101 being disposed on the transfer tab 2103 in a first direction, the boss 2101 being insertable into the connection aperture 12. In which the battery connector 23 is flush with the bottom surface of the voltage test board 2 after being fitted into the connection hole 12. Referring to fig. 6 and 2, the mounting slot further includes a first groove 16 and a second groove 17, the first groove 16 and the second groove 17 being provided on opposite surfaces of the voltage test board 2, respectively, wherein the first groove 16 has a size larger than that of the second groove 17, the second groove 17 faces the interface panel 21, the first groove 16 accommodates the battery assembly after the battery mounting board 1 and the voltage test board 2 are coupled, the second groove 17 accommodates the transfer tab 2103, and then the boss 2101 is partially coupled to the battery assembly to be tested through the coupling hole 12.

The mounting socket 11 further comprises at least one wiring groove 15, which is provided on the surface of the voltage test board 2 facing the interface panel 21, the wiring groove 15 extending in the direction in which the voltage test board 2 extends to the edge of the voltage test board 2 near the test part 3, at least two adjacent second grooves and the nearest wiring groove communicating.

Wherein referring to fig. 6, a wiring groove 15 is provided on the back of the voltage test board for accommodating the connection cable connected between the connection post 2102 and the test part 3, the wiring groove 15 may be provided between every two mounting slots 11, and connected to the connection post 2102 of the switching board 2103 in each mounting slot 11 through the wiring harness in the wiring groove 15.

The test section 3 is provided therein with a test circuit board 31 and a display panel 32, wherein a projection of the test circuit board 31 in a first direction, i.e., a vertical direction, coincides with a projection of the display panel 32 in the vertical direction. A first input of the test circuit board 31 is connected to the transfer board 2103 via the wiring slot 15, a second input of the test circuit board 31 is connected to the threshold voltage source, and an output of the test circuit board 31 is connected to the display panel 32. Referring to fig. 4, a fixing column 33 is provided in a lower case 34 of the test unit 3, a circuit board fixing hole 3104 is provided on the peripheral side of the test circuit board 31, the test circuit board 31 can be fixed to the voltage test board 2 by a bolt, and a display panel 32 is provided on the peripheral side of the display panel 32, which is also connected to the test circuit board 31, and is fixed to the voltage test board 2 by a bolt. During testing, the test circuit board 31 is connected with the connection column 2102 on each interface panel 21 to obtain the voltage of the battery, and the battery voltage is compared with the threshold voltage (generally 7.2V), when the battery voltage is different from the threshold voltage, an alarm signal of the target battery can be sent directly through the display panel 32, so that a user can quickly determine the battery with a problem.

The battery testing device can meet the lithium battery test of the self-powered equipment, can improve the test efficiency of matched products, reduce human interpretation errors, automatically give out a judging result, and improve the test accuracy and test efficiency while reducing the manpower input.

It can be understood that the components of the battery testing device which are detachably connected can be fixed by adopting a connection mode such as a buckle, a chute and the like, and the utility model is not limited herein.

As a possible implementation of the above embodiment, referring to fig. 1 and 4, the test section 3 may include: a test circuit board 31 and a display panel 32.

The first input end of the test circuit board 31 is connected with the battery connector 2101 to obtain the voltage of the battery assembly, the second input end of the test circuit board is connected with the threshold voltage, the output end of the test circuit board 31 is connected with the display panel, and the display panel 32 sends out an alarm signal when the voltage of the battery assembly and the threshold voltage are different.

Specifically, referring to fig. 3, four connection terminals are provided on the peripheral side of the test circuit board 31, wherein a first connection terminal 3101 and a second connection terminal 3101 are provided opposite to each other, a third connection terminal 3103 and a fourth connection terminal 3102 are provided opposite to each other, the first connection terminal and the second connection terminal are connected as a first input terminal to the transfer pad 2103, a first connection post of the transfer pad 2103 is a positive electrode, a second connection post is a negative electrode, and the first connection post and the second connection post are connected to the first connection terminal or the second connection terminal by a wire. The third connection terminal 3103 is connected as a second input to the threshold voltage source, and the fourth connection terminal 3102 is connected as an output to the display panel 32.

On the test circuit board 31, there are included: the battery voltage acquisition circuit, the threshold voltage acquisition circuit and the comparison circuit.

The input end of each battery voltage acquisition circuit is connected with a corresponding switching small plate 2103 through a first connecting terminal or a second connecting terminal 3101, the output end of each battery voltage acquisition circuit is connected with the first input end of a corresponding comparison circuit, the second input end of each comparison circuit is connected with the output end of a threshold voltage acquisition circuit, the input end of the threshold voltage acquisition circuit is connected with a threshold voltage source through a third connecting terminal 3102, and the output end of each comparison circuit is connected with a display panel 32 through a fourth connecting terminal 3102.

Referring to fig. 5, the display panel 32 is provided with indicator lamps 3201 which are matched with the number of the switching small plates 2103 and are arranged in sequence, each indicator lamp 3201 corresponds to one switching small plate 2103, the output end of each comparison circuit is connected with one indicator lamp 3201 through a fourth connecting terminal 3102, and when the battery voltage acquired by the battery voltage acquisition circuit is different from the threshold voltage, the corresponding indicator lamp 3201 is lightened.

Referring to fig. 5, 8 and 9, 8 battery voltage acquisition circuits may be provided, each of which is constituted by a sampling resistor 3105 and an amplifier 3106, and the threshold voltage acquisition circuit may be constituted by an amplifier 3106, and the comparison circuit may be constituted by a comparator 3107 provided in correspondence with the battery voltage acquisition circuit. The battery voltage connected from the connection column 2102 is sampled by the sampling resistor 3105 and then is collected and amplified by the amplifier 3106, the changed voltage is continuously output to one input end of the comparator 3107 along with the change of the sampled voltage, the threshold voltage is amplified by the amplifier 3106 and then enters the other input end of the comparator 3107, and the high-low level is output after comparison by the comparator, so that the indicator lamp is driven to be turned on or off to send an alarm signal.

Wherein first control switches 3202 matched with the number of the transfer small plates 2103 are further arranged on the display panel 32, each first control switch 3202 is connected to the path of the first connecting column or the second connecting column of the corresponding transfer small plate 2103, and each first control switch 3202 is used for controlling the voltage input of one corresponding battery connector.

The display panel 32 is further provided with a first display screen 3203 matched with the number of the battery connectors, and the output end of each battery voltage acquisition circuit is further connected with a corresponding first display screen 3203 for displaying the voltage value of the battery assembly.

In another embodiment of the present utility model, for facilitating detection and comparison of various battery voltages, a varistor 3208 connected to an input terminal of the threshold voltage acquisition circuit is further disposed on the test circuit board 32, a control knob 3207 connected to a control terminal of the varistor 3208 is further disposed on the display panel 32, and a second display screen 3204 connected to an output terminal of the threshold voltage acquisition circuit is further disposed on the display panel 32 for displaying the threshold voltage value. Meanwhile, a second control switch 3205 is further arranged on the display panel 32, and the second control switch 3205 is used for controlling the access of the input end of the threshold voltage acquisition circuit.

The first display 3203 and the second display 3204 may be devices such as a digital voltmeter with a numerical display function, and may be selected by those skilled in the art according to the need, which is not limited herein.

The 7.2V voltage is connected to the power interface 3206, and then is divided by the sliding rheostat and then is input to the amplifier, so that the voltage value output by the threshold voltage acquisition circuit is changed, and the threshold voltage can be adjusted according to the display of the second display screen 3204.

When testing, direct current power is introduced through the power interface 3206, the second control switch 3205 is closed, 8 first control switches 3202 are opened simultaneously, the threshold value is set by the adjusting knob sliding rheostat, the threshold voltage value is displayed on the second display screen, after the requirement of the qualification criterion is met, the vibrating table is started to vibrate randomly, the condition of the indicator lamp is checked, and when the battery collection voltage is greater than the threshold voltage, the indicator lamp is on, so that the battery assembly is qualified. Otherwise, the indicator light is off, and the data recording is carried out.

The battery testing device provided by the utility model can be used for simultaneously testing the voltages of a plurality of battery components. Automatic qualification judgment and prompt alarm are completed, manual misjudgment can be avoided, and automation of battery assembly testing is realized. Meanwhile, the threshold value is set through the slide rheostat, and different qualification judgment threshold values are set for the voltages of battery assemblies of different devices, so that the application range is enlarged.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other. The modules and sub-modules in the device and the terminal of the embodiments of the present utility model may be combined, divided, and deleted according to actual needs, and features described in the embodiments may be replaced or combined.

In the embodiments provided in the present utility model, it should be understood that the disclosed terminal and apparatus may be implemented in other manners. For example, the division of a module or sub-module is merely a logical function division, and there may be other manners of division when actually implemented, for example, multiple sub-modules or modules may be combined or integrated into another module, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical, mechanical, or other forms.

The modules or sub-modules illustrated as separate components may or may not be physically separate, and components that are modules or sub-modules may or may not be physical modules or sub-modules, i.e., may be located in one place, or may be distributed over multiple network modules or sub-modules. Some or all of the modules or sub-modules may be selected according to actual needs to achieve the purpose of the embodiment.

In addition, each functional module or sub-module in the embodiments of the present utility model may be integrated in one processing module, or each module or sub-module may exist alone physically, or two or more modules or sub-modules may be integrated in one module.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in an article or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A battery testing apparatus, comprising: a battery mounting plate and a voltage test plate;

the battery mounting plate is detachably connected with the voltage testing plate, at least one mounting slot is arranged on the battery mounting plate, and the mounting slot is used for fixing a battery assembly;

the voltage testing board is provided with an interface panel, the interface panel is provided with a battery connector, a connecting hole with a shape matched with the battery connector is formed in the mounting slot, the projection of the mounting slot along the first direction is overlapped with the projection of the battery connector along the first direction, and after the battery mounting board and the voltage testing board are fixed, each battery connector passes through the connecting hole and is connected with the battery assembly fixed in the mounting slot;

the voltage test board is further provided with a test part, the projection of the test part along the first direction is not overlapped with the projection of the battery mounting board along the first direction, a first input end of the test part is connected with one end of a connecting column of the interface panel, the other end of the connecting column is connected with the battery connector, and a second input end of the test part is connected with a threshold voltage source.

2. The device of claim 1, wherein the mounting slot further comprises a first groove and a second groove, the first groove and the second groove being disposed on opposite surfaces of the voltage test plate, respectively, the first groove having a size greater than a size of the second groove, the second groove facing the interface panel;

each battery connector comprises a switching small plate and a boss, the boss is arranged on the switching small plate along the first direction, the boss is arranged in the connecting hole in a penetrating mode and connected with the battery assembly in the first groove, and the switching small plate is accommodated in the second groove.

3. The apparatus of claim 2, wherein the mounting slot further comprises at least one wire slot disposed on a surface of the voltage test plate facing the interface panel, the at least one wire slot extending along a direction in which the voltage test plate extends to an edge of the voltage test plate proximate the test portion, at least two adjacent second grooves and a nearest wire slot communicating.

4. A device according to claim 3, wherein the test section comprises: the projection of the test circuit board in the first direction is overlapped with the projection of the display panel in the first direction;

the first input end of the test circuit board is connected with the switching small board through the wiring groove, the second input end of the test circuit board is connected with the threshold voltage source, and the output end of the test circuit board is connected with the display panel.

5. The apparatus of claim 4, wherein the test portion comprises a lower housing including an opening toward the test circuit board, the test circuit board disposed in the lower housing, the display panel disposed at the opening;

four connecting terminals are arranged on the periphery of the test circuit board, a first connecting terminal and a second connecting terminal are arranged oppositely, a third connecting terminal and a fourth connecting terminal are arranged oppositely, the first connecting terminal and the second connecting terminal are used as a first input end and are connected with the switching small board, the third connecting terminal is used as a second input end and is connected with the threshold voltage source, and the fourth connecting terminal is used as an output end and is connected with the display panel.

6. The device of claim 5, wherein the transfer platelet is provided with two of the connection posts in a second direction perpendicular to the first direction, wherein a first connection post serves as a positive electrode and a second connection post serves as a negative electrode, and the first connection post and the second connection post are connected to the first connection terminal or the second connection terminal by a wire.

7. The apparatus of claim 6, wherein the test circuit board further comprises: the battery voltage acquisition circuit, the threshold voltage acquisition circuit and the comparison circuit;

the input end of each battery voltage acquisition circuit is connected with a corresponding switching small plate through the first connecting terminal or the second connecting terminal, the output end of each battery voltage acquisition circuit is connected with a corresponding first input end of one comparison circuit, the second input end of each comparison circuit is connected with the output end of the threshold voltage acquisition circuit, the input end of the threshold voltage acquisition circuit is connected with the threshold voltage source through the third connecting terminal, and the output end of each comparison circuit is connected with the display panel through the fourth connecting terminal.

8. The device according to claim 7, wherein the display panel is provided with indicator lamps which are matched with the number of the switching small plates and are arranged in sequence, each indicator lamp corresponds to one switching small plate, and the output end of each comparison circuit is connected with one indicator lamp through the fourth connection terminal;

the display panel is also provided with first control switches which are matched with the switching small plates in number, and each first control switch is connected to a passage of a first connecting column or a second connecting column of the corresponding switching small plate;

and the display panel is also provided with first display screens, the number of which is matched with that of the battery connectors, and each first display screen is connected with the output end of a corresponding battery voltage acquisition circuit.

9. The device of claim 8, wherein a rheostat is further arranged on the test circuit board, the rheostat is connected with the input end of the threshold voltage acquisition circuit, a control knob is further arranged on the display panel, the control knob is connected with the control end of the rheostat, a second display screen is further arranged on the display panel, and the second display screen is connected with the output end of the threshold voltage acquisition circuit;

and a second control switch is further arranged on the display panel and connected to the input end of the threshold voltage acquisition circuit.

10. The apparatus according to any one of claims 1 to 9, wherein a first fixing hole is provided on a peripheral side of the connection hole, the battery assembly and the battery mounting plate being detachably connected through the first fixing hole;

the voltage test board is provided with second fixing holes which are arranged at intervals, the battery mounting board and the position corresponding to the second fixing holes are provided with third fixing holes, and the fastening screw is used for fixing the battery mounting board and the voltage test board on the vibration test board after being combined through the second fixing holes and the third fixing holes.

Images