CN216209735U

CN216209735U - Testing device for improving charging and discharging efficiency of square-shell battery

Info

Publication number: CN216209735U
Application number: CN202122599148.XU
Authority: CN
Inventors: 谢潇拓; 栾霞; 潘浩; 张东豪; 龚雪峰; 丁明月; 吴小峰
Original assignee: Changzhou Huayang Examination And Detection Technology Co ltd
Current assignee: Changzhou Huayang Examination And Detection Technology Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-04-05
Anticipated expiration: 2031-10-27

Abstract

The utility model relates to a test device for improving the charging and discharging efficiency of a square shell battery, which comprises a vertically arranged back plate, a support plate is horizontally fixed at the upper and lower ends of the back plate, side plates are vertically arranged on both sides of the upper part of the support plate; Up and down moving assembly; the up and down moving assembly includes beam, push rod, handle, push rod sleeve, push rod seat and connecting assembly; the middle part of the beam is vertically fixed at the end of the push rod, and the other end of the push rod is movably inserted in the push rod sleeve, A push rod seat is fixed on one side of the push rod sleeve, and the push rod seat is fixedly arranged in the middle of the upper end of the back plate; the connecting components are vertically arranged at both ends of the beam. The test device for improving the charging and discharging efficiency of square-shell batteries is suitable for various types of square-shell batteries; the positive and negative electrodes of the test line are firmly and reliably connected to the positive and negative electrodes of the battery; the test efficiency is improved, and the connection is more convenient; There is a risk of short circuit between the positive and negative poles of the battery due to misoperation.

Description

Testing device for improving charging and discharging efficiency of square-shell battery

Technical Field

The utility model relates to the technical field of testing devices, in particular to a testing device for improving the charging and discharging efficiency of a square-shell battery.

Background

With the continuous progress of society, the battery industry has been rapidly developed. At present, whether the battery is a power battery or a portable lithium battery, the performance of the battery directly determines whether an end user is satisfied, and the requirements on the safety performance, the reliability performance and the cycle life of the battery are higher and higher. With the continuous development of applications, the performance problem of batteries has received a great deal of attention. Therefore, the capability of the power battery and the portable lithium battery is comprehensively tested and evaluated, and the safe and reliable battery is provided, which is particularly important in the development process of new energy vehicles and consumer electronic products.

The purpose of battery testing is generally for two reasons:

1. understanding the characteristics of the battery (starting from the battery itself): the important parameters of the battery, such as capacity, internal resistance, voltage characteristic, rate characteristic, temperature characteristic, cycle life, energy density and the like, need to be known through testing, and the parameters are needed to demonstrate whether the battery to be tested achieves the initial design target, and better management and control in the process of using the battery are also needed through the parameters.

2. Evaluating the battery's ability to meet demand (from an application scenario): the test can be understood as reversely deducing the characteristics which the battery should meet from the requirement of the application, and verifying whether the tested battery reaches the standard through the test. For example, a vehicle manufacturer may design a battery cold start test according to a low-temperature driving scenario, design an energy efficiency test according to a power consumption index, design a power performance test according to a vehicle climbing or accelerating scenario, and the like. In addition, the tests such as overcharge, over-discharge, short circuit, over-temperature, extrusion puncture and the like are designed from the perspective of vehicle safety.

When the existing battery testing system tests the performance of a battery, the connection between a positive electrode testing line and a negative electrode testing line of testing equipment and the positive electrode and the negative electrode of the battery is fixed by simple bolts, the method is time-consuming and labor-consuming, the connection reliability between the testing line and the positive electrode and the negative electrode of the battery cannot be guaranteed, the joint resistance is increased, the charging and discharging conversion efficiency of the battery is reduced, and the precision of a testing result is finally influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to solve the problems in the background art, a testing device for improving the charging and discharging efficiency of a square-shell battery is provided, and is suitable for various types of square-shell batteries; the positive and negative electrodes of the test wire are firmly and reliably connected with the positive and negative electrodes of the battery; the testing efficiency is improved, and the connection is more convenient; the risk of short circuit of the anode and the cathode of the battery caused by misoperation in the operation process is reduced.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a testing device for improving the charge and discharge efficiency of a square-shell battery comprises a back plate which is vertically arranged, wherein the upper end and the lower end of the back plate are horizontally fixed with a supporting plate, and two sides of the upper part of the supporting plate are vertically provided with side plates; the upper part of the side plate is also provided with an up-down moving assembly; the up-down moving assembly comprises a cross beam, a push rod, a handle, a push rod sleeve, a push rod seat and a connecting assembly; the middle part of the cross beam is vertically fixed at the end part of the push rod, the other end of the push rod is movably inserted in the push rod sleeve, one side of the push rod sleeve is fixedly provided with a push rod seat, and the push rod seat is fixedly arranged in the middle part of the upper end of the back plate; the connecting assemblies are vertically arranged at two ends of the cross beam.

Further, in the above technical solution, the connection assembly includes a press block, a connection rod, an insulation sleeve, a signal line and a test line; the connecting rod is vertically inserted on the cross beam, and the pressing block is fixedly arranged at the lower end of the connecting rod; the upper end of the connecting rod penetrates through the rear end part of the cross beam and is sleeved with an insulating sleeve, a fastening nut is fixed on the upper part of the insulating sleeve, the upper end of the fastening nut is connected with a signal wire, and a test wire is fixedly connected between the fastening nut and the insulating sleeve on the connecting rod; the signal line and the test line are both connected with external test equipment.

Further, in the above technical solution, the connecting rod is further provided with a telescopic spring at the upper part of the pressing block.

Further, in the above technical solution, a guide assembly is further disposed on the cross beam at the outer side of the connecting assembly; the guide assembly comprises an upper fixing block, a lower fixing block, a guide pillar and a bearing; the upper fixing block and the lower fixing block are arranged in parallel up and down, the upper fixing block and the lower fixing block are connected through a guide pillar which is vertically arranged, and the guide pillar is vertically and movably arranged on the cross beam in a penetrating manner; the upper end and the lower end of the upper cross beam of the guide post are fixedly sleeved with bearings.

Further, in the above technical solution, a top plate is further disposed at a connection position of the push rod and the cross beam, and the top plate is fixedly disposed on an upper end surface of the cross beam.

A test method for improving the charge-discharge efficiency of a square-shell battery comprises the following operation steps: s1, firstly, placing a product to be tested on a support plate, and enabling the positive pole of the product to be opposite to the red wiring position; the negative pole of the product is just opposite to the black connection position; s2, pressing downwards through a handle to enable the push rod to push the beam to descend horizontally as a whole; s3, connecting the signal wire and the test wire with external test equipment; and S4, when the cross beam descends, the pressing block firstly contacts the corresponding positive and negative electrode positions, and the testing device is switched on to realize the testing operation.

The utility model has the beneficial effects that: the testing device for improving the charge and discharge efficiency of the square-shell battery is suitable for various types of square-shell batteries; the positive and negative electrodes of the test wire are firmly and reliably connected with the positive and negative electrodes of the battery; the testing efficiency is improved, and the connection is more convenient; the risk of short circuit of the anode and the cathode of the battery caused by misoperation in the operation process is reduced.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

The reference numbers in the drawings are: 1. the device comprises a back plate, 2, a support plate, 3, a side plate, 4, a cross beam, 5, a push rod, 6, a handle, 7, a push rod sleeve, 8, a push rod seat, 9, a pressing block, 10, a connecting rod, 11, an insulating sleeve, 12, a signal wire, 13, a test wire, 14, a fastening nut, 15, a telescopic spring, 16, an upper fixing block, 17, a lower fixing block, 18, a guide pillar, 19, a bearing, 20 and a top plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In this application, briquetting 9 adopts the copper structure, can increase area of contact greatly, through the setting of expanding spring 15, can provide effectual buffering in the contact process, plays fine safeguard effect to being tested the power connection end.

As shown in fig. 1, the testing device for improving the charge and discharge efficiency of the square-shell battery comprises a back plate 1 which is vertically arranged, a supporting plate 2 is horizontally fixed at the upper end and the lower end of the back plate 1, and side plates 3 are vertically arranged on both sides of the upper part of the supporting plate 2; the upper part of the side plate 3 is also provided with an up-down moving assembly; the up-down moving component comprises a beam 4, a push rod 5, a handle 6, a push rod sleeve 7, a push rod seat 8 and a connecting component; the middle part of the cross beam 4 is vertically fixed at the end part of the push rod 5, the other end of the push rod 5 is movably inserted in the push rod sleeve 7, one side of the push rod sleeve 7 is fixedly provided with a push rod seat 8, and the push rod seat 8 is fixedly arranged at the middle part of the upper end of the back plate 1; the connecting assemblies are vertically arranged at two ends of the cross beam 4.

The connecting assembly comprises a pressing block 9, a connecting rod 10, an insulating sleeve 11, a signal wire 12 and a test wire 13; the connecting rod 10 is vertically inserted on the cross beam 4, and the pressing block 9 is fixedly arranged at the lower end of the connecting rod 10; the upper end of the connecting rod 10 penetrates through the rear end part of the cross beam 4 and is sleeved with an insulating sleeve 11, a fastening nut 14 is fixed on the upper part of the insulating sleeve 11, the upper end of the fastening nut 14 is connected with a signal wire 12, and a test wire 13 is fixedly connected between the fastening nut 14 and the insulating sleeve 11 and positioned on the connecting rod 10; the signal line 12 and the test line 13 are connected to an external test device. The connecting rod 10 is also sleeved with a telescopic spring 15 at the upper part of the pressing block 9. The outer side of the connecting component is positioned on the cross beam 4 and is also provided with a guide component; the guide assembly comprises an upper fixing block 16, a lower fixing block 17, a guide post 18 and a bearing 19; the upper fixing block 16 and the lower fixing block 17 are arranged in parallel up and down, the upper fixing block 16 and the lower fixing block 17 are connected through a guide pillar 18 which is vertically arranged, and the guide pillar 18 is vertically and movably arranged on the cross beam 4 in a penetrating manner; the guide post 18 is fixedly sleeved with bearings 19 at the upper end and the lower end of the cross beam 4. The top plate 20 is further arranged at the joint of the push rod 5 and the cross beam 4, and the top plate 20 is fixedly arranged on the upper end face of the cross beam 4.

A test method for improving the charge-discharge efficiency of a square-shell battery comprises the following operation steps: s1, firstly, placing a product to be tested on the support plate 2, and enabling the positive pole of the product to be opposite to the red wiring position; the negative pole of the product is just opposite to the black connection position; s2, pressing downwards through a handle to enable the push rod to push the beam to descend horizontally as a whole; s3, connecting the signal wire 12 and the test wire 13 with external test equipment; and S4, when the cross beam 4 descends, the press block 9 firstly contacts the corresponding positive and negative positions, and the test device is switched on to realize the test operation.

Compared with the traditional device and method, the testing device and the testing method for improving the charge-discharge efficiency of the square-shell battery have the following advantages: the positive and negative electrode tabs of the battery are effectively protected, and the contact resistance is reduced; the overall testing efficiency is improved, and the risk of short circuit of the anode and the cathode of the battery caused by misoperation in the operation process is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. a test device for improving the charge-discharge efficiency of a square shell battery is characterized in that: it comprises a vertically arranged back plate, the upper and lower ends of the described back plate are horizontally fixed to the supporting plate, and both sides of the upper part of the described supporting plate are vertically arranged side. The upper part of the side plate is also provided with an up and down moving assembly; the up and down moving assembly includes a beam, a push rod, a handle, a push rod sleeve, a push rod seat and a connecting assembly; the middle part of the beam is vertically fixed on the push rod end The other end of the push rod is movably inserted into the push rod sleeve, the push rod seat is fixed on one side of the push rod sleeve, and the push rod seat is fixedly arranged in the middle of the upper end of the back plate; the connection The components are arranged vertically at both ends of the beam.

2 . The test device for improving the charging and discharging efficiency of a square shell battery according to claim 1 , wherein the connecting assembly comprises a pressing block, a connecting rod, an insulating sleeve, a signal line and a test line; 2 . The connecting rod is vertically inserted on the beam, and the pressing block is fixedly arranged on the lower end of the connecting rod; the upper end of the connecting rod passes through the rear end of the beam and is sleeved with an insulating sleeve, and the upper part of the insulating sleeve is fixed with a tightening nut, so The upper end of the tightening nut is connected to a signal line, and a test line is also fixedly connected to the connecting rod between the tightening nut and the insulating sleeve; the signal line and the test line are both connected to external testing equipment.

3 . The test device for improving the charging and discharging efficiency of a square shell battery according to claim 2 , wherein the connecting rod is located on the upper part of the pressing block and is also sleeved with a telescopic spring. 4 .

4 . The test device for improving the charging and discharging efficiency of a square shell battery according to claim 1 , wherein: the outer side of the connecting assembly is located on the beam and a guide assembly is provided; the guide assembly comprises an upper fixing block. 5 . , lower fixed block, guide post and bearing; the upper fixed block and the lower fixed block are arranged in parallel up and down, the upper fixed block and the lower fixed block are connected by a vertically arranged guide post, and the guide post is vertical And it is movably arranged on the beam; the upper end and the lower end of the beam on the guide column are fixedly sleeved with bearings.

5 . The test device for improving the charging and discharging efficiency of a square shell battery according to claim 1 , wherein a top plate is also provided at the connection between the push rod and the beam, and the top plate is fixedly arranged on the upper end surface of the beam. 6 . .