CN219245630U

CN219245630U - Square current probe

Info

Publication number: CN219245630U
Application number: CN202223514872.9U
Authority: CN
Inventors: 孙炳贵
Original assignee: Kangxinda Technology Suzhou Co ltd
Current assignee: Kangxinda Technology Suzhou Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-23
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a square current probe, which comprises a current needle, a fixed sleeve and a conductive part, wherein the conductive part is electrically connected with the upper end face of the current needle; the outside of the voltage needle is isolated with the hollow needle tube through the insulating sleeve, the top of the insulating sleeve is provided with a pin which is fixed with the voltage needle, the hollow needle tube is of a flat structure, the compression spring adopts a square spring which is matched with the hollow needle tube, and when the square current probe is used for detecting the blade battery, an operator can design the structure of the battery tray to enable the battery spacing to be smaller, so that more products can be conveniently tested at one time, and the working efficiency is improved.

Description

Square current probe

Technical Field

The utility model relates to the technical field of battery manufacturing, in particular to a square current probe.

Background

Along with the breakthrough development and the continuous expansion of the scale of the lithium battery industry of the new energy automobile, particularly the blade battery which is promoted in the current market, the method is used for leading an important development direction of the power battery of the new energy automobile in order to redefine the balance among the safety, the long service life and the long endurance of the power battery of the new energy automobile.

The current probes are basically round current probes, and when a thinner blade battery is detected, the current probes are limited, occupy more space and cannot meet the actual use requirement.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model discloses a square current probe.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme: the square current probe comprises a current needle, a fixed sleeve and a conductive part, wherein the conductive part is electrically connected with the upper end face of the current needle, the fixed sleeve is inserted on the current needle and is limited between a compression spring and the conductive part, the current needle comprises a hollow needle tube and a voltage needle, and the voltage needle is coaxially arranged inside the hollow needle tube and extends out of the hollow needle tube from two ends of the voltage needle; the outside of voltage needle is isolated with hollow needle tubing through insulating cover, the top of insulating cover is provided with the pin and is fixed with the voltage needle, hollow needle tubing is flat structure, compression spring adopts the square spring with hollow needle tubing looks adaptation.

Further, the conductive component comprises a braided wire, two ends of the braided wire are respectively connected with an upper terminal and a lower terminal, a rectangular groove is formed in the middle of the lower terminal, a rectangular lug for connecting the conductive component is arranged at the center of the top of the hollow needle tube, when the lower terminal is connected with the hollow needle tube, the rectangular lug is inserted in the rectangular groove in an interference manner and is fixed with the rectangular groove in a welding manner, and screws are screwed into two opposite sides of the lower terminal to fix the lower terminal with the hollow needle tube.

Further, the end heads of the screws are pressed against welding seams of the protruding blocks and the assembly grooves.

Further, a flat pad and a spring pad are sequentially arranged between the screw and the hollow needle tube.

Further, the insulating sleeve comprises a first insulating sleeve, a second insulating sleeve, a third insulating sleeve and a fourth insulating sleeve, the first insulating sleeve is sleeved on the lower section of the voltage needle, the second insulating sleeve and the third insulating sleeve are sleeved on the middle section of the voltage needle, the fourth insulating sleeve is sleeved on the upper section of the voltage needle, the first insulating sleeve, the second insulating sleeve, the third insulating sleeve and the fourth insulating sleeve are mutually inserted, the first insulating sleeve is composed of two separable fifth insulating sleeves, a movable spring is arranged between the two fifth insulating sleeves, and the fourth insulating sleeve and the voltage needle are fixed by the pin.

The utility model has the following beneficial effects:

when the square current probe is used for detecting the blade battery, an operator can design the structure of the battery tray to enable the battery spacing to be smaller, so that more products can be conveniently tested at one time, and the working efficiency is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic diagram of the overall structure of the present disclosure;

FIG. 2 is an enlarged schematic view of the structure at A of the present disclosure;

FIG. 3 is a schematic view of a partial cross-sectional structure of the present disclosure;

FIG. 4 is a schematic view of the structure of the current pin disclosed in the present utility model;

FIG. 5 is a schematic view of an insulating sleeve according to the present disclosure;

fig. 6 is a schematic view showing an exploded structure of an insulating sleeve according to the present disclosure.

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.

Examples

Referring to fig. 1 to 6, a square current probe comprises a current needle 10, a fixing sleeve 30 and a conductive member 20, wherein the conductive member is electrically connected with the upper end surface of the current needle, the fixing sleeve is inserted on the current needle and is limited between a compression spring 40 and the conductive member, the current needle comprises a hollow needle tube 11 and a voltage needle 12, and the voltage needle is coaxially arranged inside the hollow needle tube and extends from the hollow needle tube at two ends; the outside of voltage needle is isolated with hollow needle tubing through insulating cover 13, and the top of insulating cover is provided with pin 14 and voltage needle is fixed, and hollow needle tubing is flat column structure, and compression spring adopts the square spring with hollow needle tubing looks adaptation, and when detecting the blade battery, operating personnel can design the structure of battery tray and let the battery interval littleer to make things convenient for more products of disposable test, improved work efficiency.

In one embodiment, the conductive member includes a braided wire 23, two ends of the braided wire are respectively connected with an upper terminal 21 and a lower terminal 22, a rectangular groove 221 is formed in the middle of the lower terminal, a rectangular bump 15 for connecting the conductive member is arranged in the center of the top of the hollow needle tube, when the lower terminal is connected with the hollow needle tube, the rectangular bump is in interference fit connection with the rectangular groove and is welded and fixed with the rectangular groove, screws 50 are screwed into two opposite sides of the lower terminal respectively to fix the lower terminal with the hollow needle tube, and in addition, a flat pad and an elastic pad (not shown) are sequentially arranged between the screws and the hollow needle tube, so that the tightness between the flat pad and the elastic pad can be improved.

In one embodiment, the insulating sleeve comprises a first insulating sleeve 131, a second insulating sleeve 132, a third insulating sleeve 133 and a fourth insulating sleeve 134, the first insulating sleeve is sleeved on the lower section of the voltage needle, the second insulating sleeve and the third insulating sleeve are sleeved on the middle section of the voltage needle, the fourth insulating sleeve is sleeved on the upper section of the voltage needle, the first insulating sleeve, the second insulating sleeve, the third insulating sleeve and the fourth insulating sleeve are mutually inserted, the first insulating sleeve is composed of two separable fifth insulating sleeves, so that the voltage needle can be prevented from being contacted with the hollow needle tube to cause short circuit due to the contact of the hollow needle tube with other components, the first insulating sleeve is composed of two separable fifth insulating sleeves 1311, a movable spring 135 is arranged between the two fifth insulating sleeves, the insulation effect can be prevented from being disabled due to position deviation, and the fourth insulating sleeve is fixed with the voltage needle through a pin.

The foregoing embodiments are merely illustrative of the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same according to the present utility model, not to limit the scope of the present utility model. All changes and modifications that come within the meaning and range of equivalency of the utility model are to be embraced within their scope.

Claims

1. The square current probe comprises a current needle, a fixed sleeve and a conductive part, wherein the conductive part is electrically connected with the upper end face of the current needle, the fixed sleeve is inserted on the current needle and is limited between a compression spring and the conductive part, the current needle comprises a hollow needle tube and a voltage needle, and the voltage needle is coaxially arranged inside the hollow needle tube and extends out of the hollow needle tube from two ends of the voltage needle; the outside of voltage needle is isolated with hollow needle tubing through insulating cover, the top of insulating cover is provided with pin and voltage needle fixed, its characterized in that, hollow needle tubing is flat structure, compression spring adopts the square spring with hollow needle tubing looks adaptation.

2. The square current probe according to claim 1, wherein the conductive member comprises a braided wire, two ends of the braided wire are respectively connected with an upper terminal and a lower terminal, a rectangular groove is formed in the middle of the lower terminal, a rectangular protruding block for connecting the conductive member is arranged in the center of the top of the hollow needle tube, when the lower terminal is connected with the hollow needle tube, the rectangular protruding block is inserted in the rectangular groove in an interference manner and is fixed with the rectangular groove in a welding manner, and screws are screwed into two opposite sides of the lower terminal to fix the lower terminal with the hollow needle tube.

3. A square current probe according to claim 2, wherein the screw head is arranged to press against the weld between the lug and the mounting groove.

4. The square current probe according to claim 2, wherein a flat pad and a spring pad are sequentially arranged between the screw and the hollow needle tube.

5. The square current probe according to claim 1, wherein the insulating sleeve comprises a first insulating sleeve, a second insulating sleeve, a third insulating sleeve and a fourth insulating sleeve, the first insulating sleeve is sleeved on the lower section of the voltage pin, the second insulating sleeve and the third insulating sleeve are sleeved on the middle section of the voltage pin, the fourth insulating sleeve is sleeved on the upper section of the voltage pin, the first insulating sleeve, the second insulating sleeve, the third insulating sleeve and the fourth insulating sleeve are mutually inserted, the first insulating sleeve is composed of two separable fifth insulating sleeves, a movable spring is arranged between the two fifth insulating sleeves, and the pin fixes the fourth insulating sleeve and the voltage pin.