CN213875973U

CN213875973U - Battery short circuit testing device

Info

Publication number: CN213875973U
Application number: CN202022673338.7U
Authority: CN
Inventors: 邓爽
Original assignee: Suzhou Hanchuang Testing Technology Service Co ltd
Current assignee: Suzhou Hanchuang Testing Technology Service Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-08-03
Anticipated expiration: 2030-11-18

Abstract

The utility model belongs to the technical field of the battery detects, relate to a battery short circuit testing arrangement particularly. The battery short circuit testing device includes: a base and a battery placing box made of insulating flame-retardant materials, and a battery connecting device with a limit switch; the battery placing box and the battery connecting device are fixedly connected to the base. Compared with the prior art, the utility model uses the box body to place the battery, thereby improving the safety of the battery short circuit test; meanwhile, the battery connecting device is provided with the limit switch, two design schemes of the limit switch are provided, the two limit switches are connected in a convenient mode, and the time waste of repeated experiments is greatly saved.

Description

Battery short circuit testing device

Technical Field

The utility model belongs to the technical field of the battery detects, relate to a battery short circuit testing arrangement particularly.

Background

In recent years, battery technology is rapidly developed, and whether the battery is a power battery applied to the field of electric automobiles or a storage battery applied to electronic equipment, a large amount of complicated and even repeated test verification work is required in the process from research and development to application.

The common battery short circuit testing device is generally simpler, the battery pack is directly placed without protective measures, the battery pack is in an exposed state during testing, and potential safety hazards and environmental pollution are easily caused if the battery explodes during testing. In addition, during the test of battery short circuit, generally trompil on electric core utmost point ear, use the spiral swivelling joint fastening of bolt, this kind of method operation is loaded down with trivial details relatively, and the battery is when connecting repeatedly and breaking off, and is very consuming time hard. The crocodile clip is used for connection in some cases, and due to the fact that clamping force is limited, or sundries generated by abrasion of the metal surface, battery leakage and the like are stuck to the surface of a metal gasket in the long-time use process, the metal surface and a lug cannot be in good contact, poor contact and increase of internal resistance can be caused, and therefore the battery is heated to cause errors of test data, and the final test result is influenced.

Disclosure of Invention

In order to solve the problem, the utility model discloses a battery short circuit testing arrangement aims at improving the safety problem in the battery short circuit test to and the time waste and the test data error problem that cause because the complicated reason of battery connection operation.

The utility model discloses technical scheme as follows:

a battery short circuit test device comprising: the battery pack comprises a base made of an insulating material, a battery containing box and a battery connecting device with a limit switch, wherein the battery containing box and the battery connecting device are fixed on the base.

The battery placing box can be used for placing at least one battery to be tested, a device for fixing the battery is arranged in the box body, and one end of the box body is provided with a group of electrode holes.

The battery connecting device is provided with a limit switch, and the electric connection control of the battery and an external test circuit is realized through the connection and disconnection of the conductive piece and the battery pole lug. The battery connecting device further includes: the device comprises a top plate made of an insulating material, two side plates, a pressing disc, an elastic piece, a connecting rod and a conductor made of a conductive material; the top plate is provided with a through hole, one end of the connecting rod is connected with the electric conductor, and the other end of the connecting rod penetrates through the through hole to be connected with the pressing disc; the elastic piece is arranged between the top plate and the pressing plate.

Preferably, the elastic member is of a hollow structure, is sleeved on the upper portion of the connecting rod and is detachably connected with the top plate and the pressing plate respectively, and the elastic member is made of spring or rubber or other elastic materials with resilience characteristics.

The battery connecting device also comprises a limit switch for limiting the return of the elastic piece. The utility model provides two kinds of design schemes of limit switch:

one design is a snap-in design, specifically comprising: the male buckle is positioned at the lower part of the connecting rod, the fixing plate is arranged in parallel with the top plate, and the female buckle is positioned on the fixing plate and used in cooperation with the male buckle. The fixed plate is arranged between the top plate and the base, the female buckle is provided with a plurality of grooves, and the male buckle is provided with a protrusion.

Preferably, the fixed plate is detachably and fixedly connected with the two side plates and the female buckle respectively; the male buckle and the connecting rod are fixedly connected in a detachable mode. The back of box recess is equipped with the elasticity and presses the pressing plate, and the male buckle arch corresponds the elasticity and presses the pressing plate when detaining, makes the male buckle withdraw from the recess through pressing the elastic surface.

Another design of the limit switch is a set of removable levers, both ends of which are connected to the top plate and the pressing plate, respectively.

Preferably, the upper end of the control rod is fixed on the pressing disc in a hinged connection mode, and the lower end of the control rod can movably abut against the top plate; or the upper end and the lower end of the control rod are opposite, the lower end of the control rod is fixed on the top plate in a hinged connection mode, and the upper end of the control rod can movably abut against the pressing plate.

It should be noted that, the battery is placed the case and is only used for placing and wait to detect the battery, and other parts and test equipment all place outside the box, and the box mainly plays the guard action, avoids battery weeping or explodes in the testing process and causes the injury to other equipment or even testers, also can reduce the pollution of battery weeping to operational environment.

Battery short circuit testing arrangement, base and battery are placed the case shape and are the rectangle structure, or other shapes that conventional understanding such as square, cylindrical.

Electrically conductive piece use copper material, but as long as can realize with electrically conductive piece and the electricity of battery electrode utmost point ear be connected, iron, aluminium, silver similar electrically conductive material all can.

The utility model relates to a base, roof, curb plate, press disc, connecting rod, fixed plate, this type of frame part of control lever all use insulating flame retardant material, and the safety factor is mainly considered in the material selection.

Compared with the prior art, the utility model discloses battery short circuit testing arrangement carries out following improvement on original testing arrangement's basis: firstly, the battery placement part is made into a box type, so that the safety of the battery short circuit test is greatly improved, and the damage to other battery test instruments and equipment and personnel caused by battery leakage or explosion is avoided; and secondly, the battery connecting device is designed into a limit switch, two design schemes of the limit switch are provided, the connection mode of the two limit switches is convenient to operate, the time waste of repeated experiments is greatly saved, and meanwhile, the error of a test result caused by poor contact is also avoided.

Drawings

Fig. 1 is a schematic view of a part of the structure of the battery short circuit testing device of the present invention.

Fig. 2 is a schematic diagram of a battery placing box according to an embodiment.

Fig. 3 is a schematic diagram of a battery connection device of a snap-in limit switch provided in embodiment 1.

Fig. 4 is a schematic diagram of a back plate of a buckle and a female buckle provided in embodiment 1.

Fig. 5 is a schematic diagram of a battery connection device of a control lever type limit switch provided in embodiment 2.

Detailed Description

The present invention will be further described in detail with reference to specific embodiments, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the present invention is not limited to the following embodiments.

It should be understood that the directions or positional relationships indicated by "up, down, left, right, inside, outside" and the like in the present invention are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when in use, or the directions or positional relationships that the persons skilled in the art usually understand, and are only for the convenience of describing the present invention and simplifying the description.

Example 1

Referring to fig. 1 and 2, the utility model discloses a battery short circuit testing arrangement, including base 10, be fixed in the battery on the base and place case 20, be fixed in battery connecting device 30 on the base.

In the embodiment, the base 10 is made of wood, and has the characteristics of firmness, no deformation, corrosion resistance and no electric conduction; the shape is rectangular. The fixing connection manner of the base 10, the battery placing box 20 and the battery connecting device 30 may be clamping, riveting, welding, bonding, screwing, or bolting, and is not limited in particular.

Referring to fig. 2 and 1, in the present embodiment, the battery housing box 20 is also made of wood; the shape is cuboid, the top plate of the box body can be opened, and batteries are conveniently fixed and taken; the end of the housing near the connection means 30 is provided with

electrode holes

21 and 22. The positive and

negative electrode tabs

41 and 42 of the battery 40 protrude from the

electrode holes

21 and 22 during testing. The battery sample 40 to be tested is fixed in the case, and the way of fixing the battery is various, and is not limited in detail.

It should be noted that other components such as the connecting device 30, the testing equipment, the driving equipment, etc. are provided outside the case 20, except for the battery 40 to be tested. Because the box body 20 mainly plays a role in protection, in the process of testing the short circuit of the battery, the leakage of the battery liquid and even the explosion may occur, the box body 20 can prevent the damage of the leakage or the explosion of the battery to the testing equipment and even the testing personnel, and can also reduce the pollution of the leakage of the battery to the working environment.

Referring to fig. 1, 3 and 4, in the present embodiment, the battery connecting device 30 is connected to an external test circuit through a lead 50. The battery connection device 30 specifically further includes: a top plate 311, two

side plates

312, 313 arranged in parallel, a pressing plate 34, an elastic member 35, a limit switch 36, a connecting rod 32, and a conductor 33.

In this embodiment, the elastic member 35 is preferably a spring, and the conductive body 33 is a copper electrode.

The top plate 311 is provided with a through hole, one end of the connecting rod 32 is connected with the copper pole, and the other end of the connecting rod passes through the through hole to be detachably connected with the pressing disc 34; the spring is inserted into the upper part of the connecting rod 32 and is respectively abutted against the top plate 311 and the bottom of the pressing plate 34.

Referring to fig. 3 and 4, in the present embodiment, the battery connecting device is designed as a snap-in limit switch 36, which specifically includes: a male buckle 321 positioned at the lower part of the connecting rod 32, a fixing plate 314 arranged parallel to the top plate, and a female buckle 361 positioned on the fixing plate and used in cooperation with the male buckle. The fixed plate 314 is arranged between the top plate and the base and is respectively detachably and fixedly connected with the two side plates and the female buckle 361. Referring to fig. 4, the box sets up 3 recesses, and the backplate portion that the recess corresponds has the elasticity of a rectangle rubber to press the clamp plate, be equipped with the arch on the pin, when the pin card was gone into in the recess, the arch just pressed the clamp plate to corresponding rubber elasticity, can force the pin to withdraw from the recess through the mode of pressing the soft surface.

When the battery is tested, the pressing disc 34 is pressed at the top to move downwards, the pressing disc 34, the connecting rod 32 and the copper pole are fixedly connected together, so that the whole body moves downwards together, after the copper pole is tightly abutted to the electrode lug 41 of the battery to be tested, the male buckle of the limit switch is clamped into the proper groove of the female buckle, and the buckle connection is realized. The other electrode 42 is similarly connected, and the test circuit is completed, so that the relevant battery test operation can be performed. Note that the spring is now under compression.

When the circuit needs to be disconnected, the elastic pressing plate at the back of the female buckle is lightly pressed to release the male buckle, the pressing disc 34 drives the connecting rod and the copper pole to move upwards together under the action of the elastic force of the spring, the copper pole is disconnected from the battery tab 41, and the circuit is disconnected. The electrode 42 is disconnected in the same manner.

Example 2

Compared with embodiment 1, the present embodiment is different in design in that: the battery connection device 30 is designed as a rotary lever switch 37, see fig. 5.

The rotary control lever switch 37 specifically includes: the upper end of the control rod 37 is fixed on the pressing plate 34 by a hinge connection mode (such as a hinge), the lower end is movably abutted against the top plate 311, and the length of the control rod is greater than the original length of the spring.

It should be noted that when the control lever 37 is in the abutting state shown in fig. 5, the spring is in a stretched state, and the pressing plate 34 receives a downward stretching force, and the control lever 37 is in a supporting function.

When the battery is tested, the movable end of the control rod 37 is rotated away from the top plate 311, and the supporting function disappears; at this time, the pressing plate 34 drives the connecting rod 32 and the conductive member 33 to move downward together under the action of the downward tensile force of the spring until the conductive member 33 abuts against the battery electrode 41, and the circuit is closed. When the circuit needs to be disconnected, the pressing plate 34 is pulled upwards, the conductive piece 33 moves upwards together under the driving of the pressing plate 34, the contact with the battery tab 41 is disconnected, the circuit is disconnected, and meanwhile, the rotating end of the control rod 37 returns to the original position, and the pressing plate 34 is supported again.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A battery short circuit testing device, comprising: the battery protection device comprises a base, a battery placing box and a battery connecting device, wherein the base and the battery placing box are made of insulating materials;

the battery connecting device includes: the device comprises a top plate made of an insulating material, two side plates, a pressing disc, an elastic piece, a connecting rod and a conductor made of a conductive material; the top plate is provided with a through hole, one end of the connecting rod is connected with the electric conductor, and the other end of the connecting rod penetrates through the through hole to be connected with the pressing disc; the elastic piece is arranged between the top plate and the pressing plate; the battery connecting device also comprises a limit switch for limiting the return of the elastic piece.

2. The battery short circuit testing device of claim 1, wherein the limit switch is of a snap-in type and comprises a male buckle located at the lower part of the connecting rod, a fixed plate parallel to the top plate, and a female buckle located on the fixed plate and used with the male buckle, wherein the fixed plate is arranged between the top plate and the base, the female buckle is provided with a plurality of grooves, and the male buckle is provided with a protrusion.

3. The battery short circuit testing device as claimed in claim 2, wherein the back of the female button groove is provided with an elastic pressing plate, the male button protrusion corresponds to the elastic pressing plate, and the elastic pressing plate can make the male button exit the groove when being pressed.

4. The battery short circuit testing device of claim 3, wherein the fixing plate is detachably and fixedly connected with the two side plates and the female buckle respectively; the male buckle and the connecting rod are fixedly connected in a detachable mode.

5. The battery short circuit testing device of claim 2, wherein the limit switch is a set of removable control rods, the two ends of the control rods are respectively connected with the top plate and the pressing plate, and the length of the control rods is greater than that of the elastic member.

6. The battery short circuit testing device of claim 5, wherein the control rod is fixed to the pressing plate at an upper end thereof by a hinge connection, and movably abutted against the top plate at a lower end thereof.

7. The battery short circuit testing device of claim 5, wherein the lower end of the control rod is fixed to the top plate by a hinge connection, and the upper end is movably abutted against the pressing plate.

8. The battery short circuit testing device according to any one of claims 1 to 7, wherein the elastic member is a hollow structure, and is sleeved on the upper portion of the connecting rod and is connected with the top plate and the pressing plate respectively.

9. The battery short circuit testing device of claim 8, wherein the elastic member is a spring, and the spring is detachably connected to the top plate and the pressing plate, respectively.