CN220419408U

CN220419408U - Battery needling fixture and needling testing machine

Info

Publication number: CN220419408U
Application number: CN202322024839.6U
Authority: CN
Inventors: 杨光; 张亚儒; 朱家浩
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2023-07-28
Filing date: 2023-07-28
Publication date: 2024-01-30
Anticipated expiration: 2033-07-28

Abstract

The utility model belongs to the technical field of battery testing, and discloses a battery needling fixture and a needling testing machine. The battery needling fixture comprises a lower clamping plate and an upper clamping plate, wherein the lower clamping plate is fixed on a needling workbench of a needling testing machine through a connecting piece, the lower clamping plate is provided with a guide pin in a penetrating way, the guide pin is provided with a guide hole for penetrating a puncture needle of the needling testing machine, and the needling workbench is provided with a avoiding hole for penetrating the guide pin; the upper clamping plate is arranged on the lower clamping plate in a height-adjustable mode, the upper clamping plate can be close to the lower clamping plate, so that a battery to be tested is clamped and fixed between the upper clamping plate and the lower clamping plate, and the upper clamping plate is provided with a needling hole for penetrating the puncture needle. The battery needling clamp can improve the efficiency of positioning the battery to be tested and the clamp, ensure the accuracy of test results, and is smoother in needle withdrawal operation, so that the operation efficiency can be improved.

Description

Battery needling fixture and needling testing machine

Technical Field

The utility model relates to the technical field of battery testing, in particular to a battery needling fixture and a needling testing machine.

Background

The lithium battery is used as a core component of the electric automobile and plays an important role in the safety performance of the electric automobile. In order to study the safety performance of the lithium battery under the fault condition that the battery core is punctured, a needling test is needed to simulate the fault condition, namely, the battery core to be tested is needled to form a short circuit point, so that the conditions of thermal runaway and the like of the battery core possibly occurring at the short circuit point are observed.

However, in the existing needling test, a battery to be tested is generally directly placed at a test board, and an operator determines the final placement position of the battery to be tested through naked eye observation, so that the positioning process is tedious and laborious, the point to be needled of the battery to be tested cannot be ensured, and unreliable data of the needling test are caused; in addition, after the needling test is completed, needle withdrawal operation is required, and when the needle is withdrawn, the clamp for fixing the battery to be tested and the battery to be tested are not fixed, so that the needle is easy to drive the clamp to move together with the battery to be tested, and the needle withdrawal process is blocked.

Therefore, it is desirable to provide a novel battery needling fixture, so as to solve the above technical problems in the prior art.

Disclosure of Invention

The utility model aims to provide a battery needling fixture, which can improve the positioning efficiency of a battery to be tested and the fixture, ensure the accuracy of test results, enable the needle withdrawing operation to be smoother and improve the working efficiency.

To achieve the purpose, the utility model adopts the following technical scheme:

the battery needling fixture comprises a lower clamping plate and an upper clamping plate, wherein the lower clamping plate is fixed on a needling workbench of a needling testing machine through a connecting piece, the lower clamping plate is provided with a guide pin in a penetrating way, the guide pin is provided with a guide hole for penetrating a puncture needle of the needling testing machine, and the needling workbench is provided with a avoiding hole for penetrating the guide pin; the upper clamping plate is arranged on the lower clamping plate in a height-adjustable mode, the upper clamping plate can be close to the lower clamping plate, so that a battery to be tested is clamped and fixed between the upper clamping plate and the lower clamping plate, and the upper clamping plate is provided with a needling hole for penetrating the puncture needle.

Optionally, the battery needling fixture further includes an adjusting member, one end of the adjusting member is connected to the lower clamping plate, and the other end of the adjusting member is connected to the upper clamping plate.

Optionally, the adjusting piece is an adjusting bolt, and the lower clamping plate is provided with a threaded hole matched with the adjusting bolt.

Optionally, the adjusting bolts and the threaded holes are provided in one-to-one correspondence, and the adjusting bolts are uniformly distributed at intervals along the circumferential direction.

Optionally, a height-equal column is further clamped between the upper clamping plate and the lower clamping plate, and the thickness of the battery to be measured is not smaller than the height of the height-equal column.

Optionally, the thickness of the battery to be measured is W, and the height of the contour post is H, wherein W-H is more than or equal to 1cm and less than or equal to 2cm.

Optionally, a plurality of the contour posts are provided, and the contour posts are uniformly spaced on the periphery of the battery to be tested.

Optionally, the number of the connecting pieces is 2 along the length direction of the battery to be tested at intervals.

Optionally, the connecting piece includes a positioning pin and a bolt, the positioning pin is inserted into a positioning hole of the needling workbench, one end of the positioning pin is fixed on the lower clamping plate, the other end of the positioning pin traverses the bolt, and the needling workbench is clamped between the bolt and the lower clamping plate.

Another object of the present utility model is to provide a needling machine, which includes an adjusting mechanism, a lancet, a needling table, and a battery needling jig according to any one of the above aspects, wherein the battery needling jig is fixed to the needling table through the connecting member, and the lancet is mounted at an output end of the adjusting mechanism and can be driven by the adjusting mechanism to extend into the guide hole.

The beneficial effects are that:

the battery needling clamp clamps and fixes the battery to be tested through the upper clamping plate and the lower clamping plate, specifically, the upper clamping plate clamps and fixes the battery to be tested from top to bottom by adjusting the height of the upper clamping plate; the lower clamping plate of the battery needling clamp is fixed on the needling workbench through the connecting piece, so that the battery needling clamp is fixed, and the position of the clamp can be positioned; and the lower clamping plate is provided with the guide pin that passes the dodge hole of lower clamping plate and acupuncture workstation in proper order, is provided with the guiding hole in the guide pin, and the felting needle of acupuncture test machine can pass the guiding hole and be close to the battery that awaits measuring, and it is experimental to await measuring the battery and carry out the acupuncture, because this battery acupuncture anchor clamps are fixed when the needle is moved back, consequently await measuring battery and this anchor clamps all can not be driven the removal, not only efficiency and the rate of accuracy when the location are higher, ensure the accuracy of test result to it is more smooth and easy when moving back the needle operation, can improve operating efficiency.

Drawings

FIG. 1 is an isometric view of a battery needling fixture according to an embodiment of the present utility model mounted to a needling table;

fig. 2 is a sectional view of a battery needling fixture separated from a needling table according to an embodiment of the present utility model.

In the figure:

10. a needling workbench; 11. avoidance holes; 12. positioning holes; 20. a battery to be tested;

100. a lower clamping plate; 110. a guide pin; 111. a guide hole; 120. a connecting piece; 121. a positioning pin; 122. a plug pin;

200. an upper clamping plate; 210. a needle hole; 220. an adjusting bolt; 230. and (5) a contour column.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1 and 2, in the present embodiment, the battery needling fixture includes a lower clamping plate 100 and an upper clamping plate 200, wherein the lower clamping plate 100 is fixed to a needling table 10 of a needling machine by a connector 120, the lower clamping plate 100 is provided with a guide pin 110 in a penetrating manner, the guide pin 110 is provided with a guide hole 111 for penetrating a needle of the needling machine, and the needling table 10 is provided with a relief hole 11 for penetrating the guide pin 110; the upper clamping plate 200 is disposed on the lower clamping plate 100 with a height adjustable, the upper clamping plate 200 can be close to the lower clamping plate 100, so that the battery 20 to be tested is clamped and fixed between the upper clamping plate 200 and the lower clamping plate 100, and the upper clamping plate 200 is provided with a needling hole 210 for penetrating the needling needle.

The battery needling fixture in the embodiment clamps and fixes the battery 20 to be tested through the upper clamping plate 200 and the lower clamping plate 100, specifically, the height of the upper clamping plate 200 is adjusted to enable the upper clamping plate 200 to clamp and fix the battery 20 to be tested from top to bottom; the lower clamping plate 100 of the battery needling fixture is fixed on the needling workbench 10 through the connecting piece 120, so that the battery needling fixture is fixed, and the fixture can be positioned; and the lower clamping plate 100 is provided with the guide pin 110 that passes through the avoidance hole 11 of the lower clamping plate 100 and the needling workbench 10 in turn, the guide hole 111 is arranged in the guide pin 110, the needle of the needling testing machine can pass through the guide hole 111 and is close to the battery 20 to be tested, the battery 20 to be tested is subjected to needling test, and the battery 20 to be tested and the battery needling clamp are fixed when the needle is withdrawn, so that the battery 20 to be tested and the clamp can not be driven to move, the efficiency and the accuracy are higher when the needle is positioned, the accuracy of test results is ensured, the needle withdrawal operation is smoother, and the operation efficiency can be improved.

The upper clamping plate 200, the lower clamping plate 100 and the needling workbench 10 in the embodiment are rectangular plates, so that the upper clamping plate is attached to the shape of a square battery, the materials are reduced, and the production cost is reduced.

As shown in fig. 2, the battery needling jig further includes an adjusting member having one end connected to the lower clamping plate 100 and the other end connected to the upper clamping plate 200. The adjusting member is used for adjusting the distance between the upper clamping plate 200 and the lower clamping plate 100 of the battery needling fixture, and specifically, a combination of a sliding rail and a sliding block can be used, so that the upper clamping plate 200 can be smoothly close to the lower clamping plate 100.

In this embodiment, the adjusting member is preferably an adjusting bolt 220, and the lower clamping plate 100 is provided with a threaded hole which is fitted with the adjusting bolt 220. The upper clamping plate 200 can be driven to be close to the lower clamping plate 100 by tightening the adjusting bolt 220, the operation is simple and convenient, and the upper clamping plate 200 can apply pressure to the battery 20 to be tested by tightening operation, so that the state of the battery 20 to be tested when in actual use is simulated.

Optionally, a plurality of adjusting bolts 220 are disposed in one-to-one correspondence with the threaded holes, and the plurality of adjusting bolts 220 are uniformly distributed at intervals along the circumferential direction. The adjusting bolts 220 in this embodiment are provided with 4 adjusting bolts, which are respectively disposed at four corners of the upper clamping plate 200, so as to uniformly apply pressure to the upper clamping plate 200, ensure that the to-be-measured battery 20 between the upper clamping plate 200 and the lower clamping plate 100 is uniformly stressed, and ensure the accuracy of the needling test result.

With continued reference to fig. 2, a height-equal column 230 is further disposed between the upper clamping plate 200 and the lower clamping plate 100, and the thickness of the battery 20 to be measured is not less than the height of the height-equal column 230. The arrangement of the high posts 230 can prevent the upper clamping plate 200 from being blocked by the high posts 230 during the process of approaching the lower clamping plate 100, so that the upper clamping plate 200 can be prevented from applying excessive pressure, and the battery 20 to be tested can be damaged by extrusion.

Specifically, the thickness of the battery 20 to be measured is W, and the height of the contour posts 230 is H, wherein W-H is 1 cm.ltoreq.2 cm. In this embodiment, the height difference is 1cm less than or equal to W-H less than or equal to 2cm, and is the thickness reduced after the battery 20 is extruded when the battery 20 is assembled into a battery module, and the specific value can be determined by those skilled in the art according to the size, the use environment and the specific use state of the battery 20, which is not particularly limited in this embodiment.

As a preferred embodiment, the contour 230 is provided with a plurality, the plurality of contour posts 230 are disposed at uniform intervals on the outer circumference of the battery 20 to be measured. The plurality of contour posts 230 can uniformly squeeze the battery 20 to be measured, thereby more conforming to the use environment of the battery 20 to be measured. In this embodiment, 2 medium-high columns 230 are provided, and 2 medium-high columns 230 are respectively disposed at two sides of the length direction of the battery 20 to be tested.

As shown in fig. 2, the connectors 120 are arranged at intervals of 2 along the longitudinal direction of the battery 20 to be measured. The arrangement of the plurality of connecting pieces 120 can provide positioning in different directions for the battery needling fixture, prevent the battery needling fixture from moving or rotating, further improve positioning and fixing effects and ensure accuracy of needling test results.

Further, the connector 120 includes a positioning pin 121 and a pin 122, the positioning pin 121 is inserted into the positioning hole 12 of the needling table 10, one end of the positioning pin 121 is fixed to the lower plate 100, the other end of the positioning pin is passed through the pin 122, and the needling table 10 is sandwiched between the pin 122 and the lower plate 100. The lower clamping plate 100 is fixed on the needling workbench 10 through the two positioning pins 121, so that the fixture is positioned and fixed on the needling workbench 10 in the horizontal direction, and then the bolt 122 is transversely inserted into the positioning pins 121, so that the needling workbench 10 is clamped between the bolt 122 and the lower clamping plate 100, and the fixture is positioned on the vertical direction.

Another object of the present utility model is to provide a needling machine including an adjusting mechanism, a lancet, a needling table 10, and a battery needling jig according to any one of the above aspects, wherein the battery needling jig is fixed to the needling table 10 through the connecting member 120, and the lancet is mounted at an output end of the adjusting mechanism and can be driven by the adjusting mechanism to extend into the guide hole 111.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Battery acupuncture anchor clamps, its characterized in that includes:

the needle punching device comprises a lower clamping plate (100), wherein the lower clamping plate (100) is fixed on a needle punching workbench (10) of a needle punching test machine through a connecting piece (120), a guide pin (110) is arranged in a penetrating mode of the lower clamping plate (100), the guide pin (110) is provided with a guide hole (111) for penetrating a needle of the needle punching test machine, and the needle punching workbench (10) is provided with an avoidance hole (11) for penetrating the guide pin (110);

the upper clamping plate (200), upper clamping plate (200) high adjustable set up in lower clamping plate (100), upper clamping plate (200) can be close to lower clamping plate (100) to make await measuring battery (20) by the clamp fastening be fixed in upper clamping plate (200) with between lower clamping plate (100), upper clamping plate (200) set up be used for passing needle acupuncture hole (210) of pjncture needle.

2. The battery needling jig of claim 1, further comprising an adjustment member having one end connected to the lower clamping plate (100) and the other end connected to the upper clamping plate (200).

3. The battery needling fixture of claim 2, wherein the adjustment member is an adjustment bolt (220), and the lower clamping plate (100) is provided with a threaded hole fitted with the adjustment bolt (220).

4. The battery needling fixture of claim 3, wherein a plurality of said adjusting bolts (220) are provided in one-to-one correspondence with said threaded holes, and a plurality of said adjusting bolts (220) are uniformly spaced apart in the circumferential direction.

5. The battery needling fixture of claim 1, wherein a contour post (230) is further interposed between the upper clamping plate (200) and the lower clamping plate (100), and the thickness of the battery (20) to be measured is not less than the height of the contour post (230).

6. The battery needling fixture of claim 5, wherein the thickness of the battery (20) to be tested is W and the height of the contour posts (230) is H, wherein 1cm ∈w-H ∈2cm.

7. The battery needling fixture of claim 5, wherein a plurality of said contour posts (230) are provided, and a plurality of said contour posts (230) are uniformly spaced around the periphery of said battery (20) to be tested.

8. The battery needling fixture of claim 1, wherein the connectors (120) are arranged at intervals of 2 along the length direction of the battery (20) to be tested.

9. The battery needling fixture according to claim 8, wherein the connecting piece (120) comprises a positioning pin (121) and a bolt (122), the positioning pin (121) is arranged through a positioning hole (12) of the needling workbench (10), one end of the positioning pin (121) is fixed on the lower clamping plate (100), the other end of the positioning pin traverses the bolt (122), and the needling workbench (10) is clamped between the bolt (122) and the lower clamping plate (100).

10. Needling testing machine, characterized by comprising an adjusting mechanism, a needle, a needling workbench (10) and a battery needling fixture according to any of claims 1-9, wherein the battery needling fixture is fixed on the needling workbench (10) through a connecting piece (120), and the needle is arranged at the output end of the adjusting mechanism and can be driven by the adjusting mechanism to extend into the guide hole (111).