CN205176235U - Battery measurement testing arrangement - Google Patents

Abstract

The utility model discloses a battery measurement testing arrangement, include the cabinet body, testboard and install in the battery test module of testboard, battery test module includes battery and test probes, test probes includes three probes and connects three and wiring of two adjacent probes respectively. Compared with the prior art, the utility model discloses the benefit that internal resistance of cell measuring device has lies in: 1 )The test position is many, 2 ) equipment structure is compact, improves the factory building utilization ratio, 3 )The application method of probe new technology has overcome the difficult problem that current -voltage contact failure was gathered to the probe.

Description

Battery charge and discharge test device

【Technical field】

The utility model relates to the technical field of lithium ion batteries, in particular to a battery charge and discharge test device.

【Background technique】

Large-scale lithium-ion battery factories usually have a large demand for cylindrical battery test equipment, but the number of test points for cylindrical battery formation equipment currently on the market is only about 300, and the loading and unloading efficiency is low. Moreover, the external dimensions of the equipment are large, resulting in low plant utilization. In addition, the existing test probes are four-core probes, two of which are connected in parallel for current collection, and the other two are connected in parallel for voltage collection. The battery positive cap is a boss. When the positioning of the material box is deviated, It may happen that the voltage acquisition and connection probe touches the boss, while the current acquisition and connection probe is suspended and poor contact, resulting in high equipment maintenance costs and low production efficiency.

Signed here, it is really necessary to provide a new battery charge and discharge test device to overcome the deficiencies of the prior art.

【Content of utility model】

The purpose of the utility model is to provide a battery charge and discharge test device which has many test points, small size and overcomes poor contact.

In order to achieve the above object, the utility model provides a battery charge and discharge test device, including a cabinet, a test bench and a battery test module installed on the test bench, the battery test module includes a battery and a test probe, the test probe The needle includes three probes and three parallel wires respectively connecting two adjacent probes.

As an improvement of the battery charging and discharging testing device of the utility model, the test probe further includes a voltage collection line connected to one probe and a current collection line connected to the other probe.

As an improvement of the battery charge and discharge test device of the present invention, the voltage collection line is adjacent to the current collection line.

As an improvement of the battery charging and discharging testing device of the present invention, the voltage collection line and the current collection line are respectively welded to one end of the corresponding probe.

As an improvement of the battery charging and discharging testing device of the present invention, the ends of the three probes away from the current collection line are in common contact with the positive pole of the battery.

As an improvement of the battery charging and discharging testing device of the present invention, the number of battery testing modules is 12, and the number of batteries in each battery testing module is 50.

As an improvement of the battery charge and discharge test device of the present invention, the battery test module further includes a positioning block for fixing the battery and a bed of needles for fixing the test probes.

Compared with the prior art, the battery internal resistance testing device of the utility model has the advantages that: 1) there are many test points; 2) the equipment structure is compact, and the utilization rate of the factory building is improved; The problem of poor contact of the needle collecting current and voltage.

【Description of drawings】

Fig. 1 is a three-dimensional combined view of the battery charging and discharging testing device of the present invention.

Fig. 2 is a three-dimensional assembled view of the battery test module of the present invention.

Fig. 3 is a three-dimensional assembly diagram of the test probe of the present invention.

【detailed description】

In order to make the purpose, technical solution and beneficial technical effects of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the utility model, not for limiting the utility model.

Please refer to FIG. 1 and FIG. 2 , a battery charge and discharge test device 100 includes a cabinet 10 , a test bench 20 inside the cabinet 10 and a battery test module 30 positioned on the test bench 20 .

The battery testing module 30 includes a set of batteries 31 , a positioning block 32 for fixing the batteries 31 , a test probe 33 located above the battery 31 , and a needle bed 34 for fixing the test probe 33 . The battery 31 has a raised positive electrode 310 . In this embodiment, four test benches 20 are arranged inside the cabinet body 10 , and three groups of battery test modules 30 are arranged on each test bench 20 . Each battery test module 30 can test 50 batteries, so the test points of the battery charge and discharge test device 100 in this embodiment are 600 points.

Please refer to FIG. 3 , the test probe 33 includes a body 330 and three probes 331 , 332 , 333 passing through the body 330 , and the three probes 331 , 332 , 333 are parallel to each other. The test probe 33 also includes a parallel wire 334 connecting the three probes 331 , 332 , 333 in pairs, a current collection line 335 connected to the probe 331 , and a voltage collection line 336 connected to the probe 332 . The parallel connection 334 makes the three probes 331 , 332 , 333 connected in pairs to form a parallel connection. The current collection line 335 is welded to one end of the probe 331 , and the voltage collection line 336 is welded to one end of the probe 332 and adjacent to the current collection line 335 .

Please refer to Fig. 2, when the battery test module 30 is tested, the test probe 33 is fixed on the needle bed 34 through the body 330, and the lower ends of the three probes 331, 332, 333 contact the positive electrode 310 of the battery 31 together, and the three probes 331 The upper ends of , 332 , 333 extend upwards out of the needle bed 34 , and the wiring 334 is located above the body 330 , and the current collection line 335 and the voltage collection line 336 extend outward from the tops of the probes 331 , 332 respectively.

The design of the utility model enables the probes 331, 332, 333 to have a larger contact area with the positive electrode 310 of the battery 31, so that even if there is a deviation in the positioning of the magazine, there will be no poor contact. And this improved process has no effect on current acquisition, the voltage acquisition data is 0.001V larger, and the test accuracy of the equipment is in the range of ±0.01V, which meets the equipment test requirements. At the same time, this design greatly improves the utilization rate of the plant compared with the existing equipment.

In other embodiments, more test benches 20 may be provided in the cabinet body 10 , and more battery test modules 30 may be provided on each test bench 20 . The parallel wire 334 can also be located under the body 330 .

In the description of the present utility model, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "outside" and the like are based on the orientations or positional relationships shown in the accompanying drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The battery testing device of the present invention is not limited to the description in the description and the implementation, so those skilled in the art can easily realize additional advantages and modifications, so without departing from the general scope defined by the claims and equivalent scope Without limiting the spirit and scope of the concepts, the invention is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein.

Claims (7)

1. a battery charging and discharging proving installation, it is characterized in that: comprise cabinet, test board and be installed on the battery testing module of test board, described battery testing module comprises battery and test probe, and described test probe comprises three probes and connects three also wiring of adjacent two probes respectively.

2. battery charging and discharging proving installation as claimed in claim 1, is characterized in that: described test probe also comprises the voltage acquisition line of connection one probe and connects the current acquisition line of another probe.

3. battery charging and discharging proving installation as claimed in claim 2, is characterized in that: described voltage acquisition line is adjacent with current acquisition line.

4. battery charging and discharging proving installation as claimed in claim 3, is characterized in that: described voltage acquisition line and current acquisition line are welded in one end of corresponding probe respectively.

5. battery charging and discharging proving installation as claimed in claim 4, is characterized in that: described three probes away from current acquisition line one end cooperating contact described in the positive pole of battery.

6. battery charging and discharging proving installation as claimed in claim 1, is characterized in that: the quantity of described battery testing module is 12, and in described each battery testing module, the quantity of battery is 50.

7. battery charging and discharging proving installation as claimed in claim 1, is characterized in that: described battery testing module also comprises the locating piece of self-contained battery and the needle-bar of fixing test probe.