CN219810982U

CN219810982U - Testing arrangement convenient to test electric core electrical property

Info

Publication number: CN219810982U
Application number: CN202321192223.3U
Authority: CN
Inventors: 张震; 陈龙; 张青伟; 张旺成
Original assignee: Tianjin EV Energies Co Ltd
Current assignee: Tianjin EV Energies Co Ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-10-10
Anticipated expiration: 2033-05-17

Abstract

The utility model provides a testing device convenient for testing the electrical performance of a battery cell, which comprises a base, an upper clamping plate and a lower clamping plate; the lower clamp plate set up in on the base, the punch holder set up in on the lower clamp plate, the battery cell tab centre gripping is in the punch holder with between the lower clamp plate, the lower clamp plate is provided with the terminal connecting plate, the terminal connecting plate passes the base is in order to be connected with test terminal. The utility model can reduce personnel operation steps and improve the working efficiency; the contact area is increased, the conductivity stability is enhanced, and the heating value is reduced; reliable insulation and high safety.

Description

Testing arrangement convenient to test electric core electrical property

Technical Field

The utility model belongs to the field of battery testing, and particularly relates to a testing device convenient for testing electrical properties of a battery cell.

Background

In the prior art, after a channel line terminal is connected with a lug of a hard-shell battery cell by using a red copper switching piece, the electrical performance of the battery is tested, but the method has certain drawbacks: (1) the connecting operation steps are too complex, and the working efficiency is low; (2) the contact area of the lug and the adapter plate is small, and the conductivity is unstable; (3) the joint is easy to generate heat to cause thermal runaway; (4) insulation measures are unreliable and short-circuited easily. Therefore, it is desirable to provide a measurement device that allows for convenient, safe, and efficient testing of battery performance.

Disclosure of Invention

In view of the above, the present utility model is directed to a testing device for testing electrical properties of a battery cell, so as to improve the working efficiency and safety of the testing process and the conductivity stability of the tab and the terminal.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a testing device convenient for testing the electrical property of a battery cell comprises a base, an upper clamping plate and a lower clamping plate; the lower clamp plate set up in on the base, the punch holder set up in on the lower clamp plate, the battery cell tab centre gripping is in the punch holder with between the lower clamp plate, the lower clamp plate is provided with the terminal connecting plate, the terminal connecting plate passes the base is in order to be connected with test terminal.

Further, the base includes bottom plate, first curb plate, second curb plate and third curb plate, first curb plate and third curb plate set up relatively, the second curb plate is connected first curb plate with the third curb plate, the second curb plate is provided with through groove, through groove confession the terminal connecting plate passes.

Further, the lower clamping plate comprises a bottom wall and a side wall, and the terminal connecting plate is fixed to the side wall.

Further, the terminal connecting plate is connected with the side wall through bolts, welding or clamping.

Further, the lateral wall of lower plate is provided with a screw, the second curb plate of base is provided with No. two screws, no. one screw with No. two screw alignment make the lower plate with the base passes through bolted connection.

Further, the diapire of lower plate is provided with No. three screws, the punch holder is provided with No. four screws, no. three screws with No. four screws align so that the punch holder with the lower plate passes through bolted connection.

Further, the bottom plate of the base is provided with a through hole, and the through hole is aligned with the third screw hole and the fourth screw hole.

Further, the upper clamping plate and/or the lower clamping plate are/is provided with dental veins, and the angles of the dental veins are 50-70 degrees.

Further, the base is made of bakelite plates, and the upper clamping plate and/or the lower clamping plate is made of red copper.

Further, the terminal connecting plate is provided with a connecting hole for connecting with a terminal.

Compared with the prior art, the testing device convenient for testing the electrical performance of the battery cell has the following advantages:

(1) According to the testing device convenient for testing the electrical performance of the battery cell, the upper clamping plate and the lower clamping plate are used for fixing the battery cell electrode lug, so that the contact area between the terminal and the electrode lug is increased, the conductivity stability is enhanced, and the heating value is reduced.

(2) The testing device convenient for testing the electrical performance of the battery cell reduces the number of personnel operation steps and improves the working efficiency.

(3) According to the testing device convenient for testing the electrical performance of the battery cell, the upper clamping plate and the lower clamping plate are wrapped by the bakelite plate, so that the safety performance is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of a testing apparatus for testing electrical properties of a battery cell according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a base according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a lower plate according to an embodiment of the present utility model;

fig. 4 is a schematic view of an upper clamping plate according to an embodiment of the utility model.

Reference numerals illustrate:

1. a base; 11. a through hole; 12. a pass through slot; 2. an upper clamping plate; 21. a fourth screw hole; 3. a clamping plate; 31. a bottom wall; 32. a sidewall; 33. a terminal connection plate; 34. and a third screw hole.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The utility model provides a testing arrangement convenient to measure electric core electrical property, as shown in fig. 1-4, includes base 1, punch holder 2 and lower plate 3, and lower plate 3 sets up on base 1, and punch holder 2 sets up on lower plate 3, and electric core tab centre gripping is between punch holder 2 and lower plate 3, and lower plate 3 is provided with terminal connecting plate 33, and terminal connecting plate 33 passes base 1 in order to be connected with test terminal (not shown).

Preferably, the base 1 includes a bottom plate, a first side plate, a second side plate and a third side plate, where the first side plate and the third side plate are disposed opposite to each other, the second side plate connects the first side plate and the third side plate, and the second side plate is provided with a through slot 12 through which the terminal connection plate 33 passes through 12. The first side plate, the second side plate and the third side plate are used for limiting the lower clamping plate 3.

Preferably, the lower clamping plate 3 includes a bottom wall 31 and a side wall 32, and the terminal connecting plate 33 is fixed to the side wall 32. The terminal connection plate 33 and the side wall 32 are connected by bolts, welding, clamping, or the like. The side wall 32 of the lower clamping plate, the first side plate and the third side plate of the base 1 are used for limiting the upper clamping plate 2.

Preferably, the side wall 32 of the lower clamping plate is provided with a first screw hole (not shown), the second side plate of the base 1 is provided with a second screw hole (not shown), and the first screw hole and the second screw hole are aligned so that the lower clamping plate 3 and the base 2 are connected through bolts. The number of the first screw holes and/or the second screw holes is at least two, and for example, may be 2, 4, 6, etc.

Preferably, the bottom wall 31 of the lower clamping plate 3 is provided with a third screw hole 34, the upper clamping plate 2 is provided with a fourth screw hole 21, and the third screw hole 34 and the fourth screw hole 21 are aligned so that the upper clamping plate 2 and the lower clamping plate 3 are connected by bolts. The bottom plate of the base 1 is provided with through holes aligned with the screw holes 34 and 21 to provide a lowering space for the bolts. The shape of the third screw hole 34 and the fourth screw hole 21 may be circular or hexagonal, and is not particularly limited in the present utility model. The number of the third screw holes 34 and/or the fourth screw holes 21 is at least two, and may be 2, 3, 4, or the like, for example. In the present embodiment, the number of screw holes 34 and 21 is 2. The ratio of the distance between the two screw holes 21 to the length of the upper clamping plate 2 is 9:11, and the clamping position can be avoided by designing the positions of the screw holes, so that the clamping stability is improved.

Preferably, the upper clamping plate and/or the lower clamping plate are/is provided with embossing, and the contact area between the upper clamping plate and the lower clamping plate and the lugs is increased by arranging the embossing, so that the conductivity is stable, and the heating value is reduced. The embossing angle is 50 to 70 °, for example, 50 °, 55 °, 60 °, 70 °, or the like.

Preferably, the base is made of bakelite plate, and the upper clamping plate and/or the lower clamping plate are made of red copper. The bakelite plate base is used for wrapping the upper clamping plate and the lower clamping plate, so that the safety performance is improved.

Preferably, the terminal connection plate 33 is provided with connection holes for connection with test terminals (not shown).

When the battery cell electric performance test device is used, bolts for fixing the upper clamping plate 2 and the lower clamping plate 3 are loosened, the battery cell electrode lugs are arranged between the upper clamping plate 2 and the lower clamping plate 3, and then the bolts are tightened, so that the battery cell electric performance test is performed. After the test is finished, the battery cell tab is taken out from between the upper clamping plate 2 and the lower clamping plate 3, and the bolts are screwed again to fix the upper clamping plate 2 and the lower clamping plate 3 for subsequent use. The testing device reduces the number of personnel operation steps and improves the working efficiency.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A testing arrangement convenient to test electric core electrical property, its characterized in that: comprises a base, an upper clamping plate and a lower clamping plate; the lower clamp plate set up in on the base, the punch holder set up in on the lower clamp plate, the battery cell tab centre gripping is in the punch holder with between the lower clamp plate, the lower clamp plate is provided with the terminal connecting plate, the terminal connecting plate passes the base is in order to be connected with test terminal.

2. The test device for facilitating electrical performance testing of a battery cell of claim 1, wherein: the base comprises a bottom plate, a first side plate, a second side plate and a third side plate, wherein the first side plate and the third side plate are oppositely arranged, the second side plate is connected with the first side plate and the third side plate, a through groove is formed in the second side plate, and the through groove is used for the terminal connecting plate to pass through.

3. A test device for facilitating electrical performance testing of a battery cell as defined in claim 2, wherein: the lower clamping plate comprises a bottom wall and a side wall, and the terminal connecting plate is fixed on the side wall.

4. A test device for facilitating electrical performance testing of a battery cell as defined in claim 3, wherein: the terminal connecting plate is connected with the side wall through bolts, welding or clamping.

5. A test device for facilitating electrical performance testing of a battery cell as defined in claim 3, wherein: the lateral wall of lower plate is provided with a screw, the second curb plate of base is provided with No. two screws, no. one the screw with No. two screw align make the lower plate with the base passes through bolted connection.

6. A test device for facilitating electrical performance testing of a battery cell as defined in claim 3, wherein: the diapire of lower plate is provided with No. three screw, the punch holder is provided with No. four screw, no. three screw with No. four screw align make the punch holder with the lower plate passes through bolted connection.

7. The device for facilitating electrical performance testing of a battery cell of claim 6, wherein: the base plate of the base is provided with a through hole, and the through hole is aligned with the third screw hole and the fourth screw hole.

8. The test device for facilitating electrical performance testing of a battery cell of claim 1, wherein: the upper clamping plate and/or the lower clamping plate are/is provided with dental veins, and the angles of the dental veins are 50-70 degrees.

9. The test device for facilitating electrical performance testing of a battery cell of claim 1, wherein: the base is made of bakelite plates, and the upper clamping plate and/or the lower clamping plate is made of red copper.

10. The test device for facilitating electrical performance testing of a battery cell of claim 1, wherein: the terminal connecting plate is provided with a connecting hole for connecting with a terminal.