CN219608594U

CN219608594U - Frock is used in withstand voltage test of battery utmost point post

Info

Publication number: CN219608594U
Application number: CN202320192974.9U
Authority: CN
Inventors: 吴世文; 季林锋; 杨亦双; 杨庆亨
Original assignee: Zhongxing Pylon Battery Co Ltd
Current assignee: Zhongxing Pylon Battery Co Ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-08-29
Anticipated expiration: 2033-02-07

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a tool for withstand voltage test of a battery pole, which comprises a supporting member, wherein the supporting member is provided with a supporting surface for supporting a product to be tested; the support member is also formed with a relief portion that extends through the support surface. Therefore, the support member can be installed on a working platform of the universal testing machine, and then the battery cover plate is placed on the support surface, and the pole below the battery cover plate can be avoided due to the avoidance part arranged below the support surface, so that the battery cover plate and the support surface are tightly attached, namely, the battery cover plate is stably supported, the testing requirement is met, and the accuracy of the pole compressive strength test is improved.

Description

Frock is used in withstand voltage test of battery utmost point post

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a tool for voltage withstand test of a battery pole.

Background

Currently, with the wide application of lithium batteries, the safety performance of lithium batteries is more and more emphasized, and it is necessary to study the strength of the lithium battery structure. The pole post installed on the conventional battery cover plate is higher than the main structure of the aluminum shell battery, and becomes a main stress point when extrusion and collision occur, so that the compressive strength of the pole post needs to be effectively detected.

Fig. 1 shows an assembly schematic diagram of a bending tool 1 'and a battery cover plate 3' for a conventional universal testing machine, and since the battery cover plate 3 'is thin, the bending tool 1' only supports two end portions thereof, so that a main body portion of the battery cover plate 3 'is not stably supported, and when pressure is applied to a pole 4', large bending deformation occurs to the battery cover plate 3', thereby affecting the detection accuracy of the pole 4'.

Fig. 2 shows an assembly schematic diagram of a compression tool 2' and a battery cover plate 3' for a conventional universal testing machine, and a gap exists between the battery cover plate 3' and a supporting surface, so that the battery cover plate 3' is not stably supported, basic test requirements are not met, and the detection precision of a pole 4' is greatly reduced.

Disclosure of Invention

The utility model aims to provide a tool for testing the voltage resistance of a battery pole, which solves the technical problem that the bending and compression tool for a universal testing machine in the prior art cannot meet the requirement of testing the ultimate voltage resistance of the pole of a battery cover plate to a certain extent.

The utility model provides a tool for withstand voltage test of a battery pole, which comprises a supporting member, wherein the supporting member is provided with a supporting surface for supporting a product to be tested; the supporting member is further provided with an avoidance portion, and the avoidance portion penetrates through the supporting surface;

the support member includes a first support portion and a second support portion;

the first supporting part is provided with a chute, and the second supporting part is arranged on the chute; the second support portion is formed with the support surface and the escape portion.

In the above technical solution, further, the first supporting portion is formed with a mounting through hole.

In any of the above technical solutions, further, the cross section of the first supporting portion along the height direction thereof is U-shaped, the transverse extending portion of the U-shaped structure is formed with the mounting through hole, two longitudinal extending portions of the U-shaped structure are both formed with the sliding groove, and along the length direction of the U-shaped structure, the sliding groove penetrates through two sides of the corresponding longitudinal extending portion.

In any of the above embodiments, further, the second supporting portion is a rectangular flat plate.

In any of the above technical solutions, further, the avoiding portion is an avoiding hole or an avoiding groove.

In any of the above technical solutions, further, the tool for testing the withstand voltage of the battery post further includes a pressing member, and the bottom of the pressing member along the height direction is adapted to the position to be tested of the product to be tested.

In any of the above technical solutions, further, the tool for testing the withstand voltage of the battery post further includes an installation member, the press member is in threaded connection with the installation member, and the press member is assembled with the target object through the installation member.

In any one of the above-mentioned aspects, further, the mounting member is formed with a mounting cavity penetrating a bottom end portion thereof in a height direction thereof; the pressing component comprises a pressing part and a threaded connection part which are connected, and the threaded connection part is in threaded connection with the mounting cavity;

a limiting part is formed on the periphery of the bottom end part of the mounting component along the height direction, a limiting step is formed by the pressing part and the threaded connection part, and the limiting step can be propped against the limiting part;

the mounting member is formed with positioning holes penetrating opposite side portions of the mounting member along a height direction perpendicular to the mounting member.

In any of the above technical solutions, further, the tool for testing the withstand voltage of the battery post further includes a lock nut, where the lock nut is sleeved outside the mounting member and is in threaded connection with the mounting member.

Compared with the prior art, the utility model has the beneficial effects that:

when the tool for the voltage withstand test of the battery pole is used, the supporting member of the tool can be installed on the working platform of the universal testing machine, and then the battery cover plate is placed on the supporting surface, and the pole below the battery cover plate can be avoided due to the avoidance part arranged below the supporting surface, so that the battery cover plate is tightly attached to the supporting surface, namely, the battery cover plate is stably supported, the testing requirement is met, and the precision of the voltage withstand strength test of the pole is improved.

In addition, a detachable pressing member matched with the top of the upper pole of the battery cover plate is additionally arranged and used for uniformly pressing the upper pole in the test process, and the pressure resistance test of the pole of different battery covers is carried out by only replacing an adaptable pressure lever structure.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an assembly of a bending tool and a battery cover plate for a prior art universal tester;

FIG. 2 is a schematic diagram of an assembly of a compression tooling and a battery cover plate for a prior art universal tester;

fig. 3 is an exploded view of a tool for testing withstand voltage of a battery post according to an embodiment of the present utility model;

fig. 4 is an assembly diagram of a tool for voltage withstand test of a battery post according to an embodiment of the present utility model;

fig. 5 is an assembly diagram of a tool for testing voltage resistance of a battery post and a battery cover plate according to an embodiment of the present utility model;

FIG. 6 is another assembly diagram of a battery post voltage withstand test tool and a battery cover plate according to an embodiment of the present utility model;

fig. 7 is an assembly diagram of a tool for voltage withstand test of a battery post, a battery cover plate and a universal testing machine according to an embodiment of the utility model.

Reference numerals:

1 '-bending tool, 2' -compression tool, 3 '-battery cover plate, 4' -pole;

the device comprises a 1-supporting member, a 11-first supporting part, a 111-mounting through hole, a 112-chute, a 12-second supporting part, a 121-supporting surface, a 122-avoiding part, a 2-press member, a 21-press part, a 22-threaded connection part, a 3-mounting member, a 31-limiting part, a 32-positioning hole, a 4-locking nut, a 5-universal testing machine, a 51-movable cross beam, a 52-mounting seat, a 521-positioning through hole, a 53-working platform, a 6-battery cover plate and a 7-pole.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.

The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of 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 "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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 will be understood in specific cases by those of ordinary skill in the art.

A tool for testing withstand voltage of a battery post according to some embodiments of the present utility model will be described with reference to fig. 3 to 7.

Referring to fig. 3 to 7, an embodiment of the present utility model provides a battery post withstand voltage test tool, including a support member 1, the support member 1 being formed with a support surface 121 for supporting a product to be tested; the support member 1 is further formed with a relief portion 122, and the relief portion 122 penetrates the support surface 121.

According to the above-described structure, the supporting member 1 can be mounted on the working platform 53 of the universal testing machine 5, and then the battery cover plate 6 is placed on the supporting surface 121, and the post 7 below the battery cover plate 6, i.e. the lower post, can be avoided due to the avoiding portion 122 arranged below the supporting surface 121, so that the battery cover plate 6 and the supporting surface 121 are tightly attached, i.e. the battery cover plate 6 is stably supported, the testing requirement is met, and the accuracy of the post compressive strength test is improved.

In this embodiment, preferably, as shown in fig. 3 to 6, the support member 1 includes a first support portion 11 and a second support portion 12;

wherein, the first supporting portion 11 is formed with a chute 112, and the second supporting portion 12 is disposed on the chute 112; the second support portion 12 is formed with a support surface 121 and a relief portion 122.

According to the above-described structure, the first supporting portion 11 may be installed on the working platform 53, and then the second installing portion is installed in the sliding groove 112 of the first supporting portion 11, which is beneficial to the split structure, not only being convenient for assembling the supporting member 1 and the working platform 53, but also being convenient for assembling the battery cover plate 6 and the supporting member 1, being performed step by step, not interfering with each other, affecting, being simple and convenient to operate, in addition, the position of the battery cover plate 6 may be adjusted along the sliding groove 112, so that the pole 7 on the battery cover plate 6 is located under the pressure head of the common universal testing machine 5 or the pressing member 2 described below, and improving the detection precision.

In this embodiment, preferably, as shown in fig. 3 to 6, the first supporting part 11 is formed with a mounting through hole 111 which is reversed along the height of the first supporting part 11, penetrating the top and bottom thereof, and preferably, this mounting through hole 111 is a countersunk hole in which a bolt or screw is mounted to lock the supporting member 1 to the work platform 53.

Of course, not only the structure of the countersunk holes is limited, but also through holes with the same aperture, and the inner walls of the through holes can be smooth or provided with threads.

In this embodiment, preferably, as shown in fig. 3 to 4, the cross section of the first supporting portion 11 in the height direction thereof is U-shaped, and the lateral extension portion of the U-shaped structure is formed with the mounting through hole 111, both longitudinal extension portions of the U-shaped structure are formed with the slide grooves 112, and the slide grooves 112 penetrate both sides of the corresponding longitudinal extension portion along the length direction of the U-shaped structure.

According to the above-described structure, the middle concave region of the U-shaped structure is connected with the working platform 53 by bolts or screws, two sides of the U-shaped structure serve to support two ends of the second support portion 12 along the length direction thereof, and preferably, the width of the sliding groove 112 is the same as that of the second support portion 12, two side walls of the sliding groove 112 in the width direction serve to limit the second support portion 12, so that the second support portion 12 and the first support portion 11 are assembled more stably, and in addition, the position of the battery cover plate 6 can be adjusted along the length direction of the sliding groove 112, so that the pole 7 on the battery cover plate 6 can be located under the pressure head of the common universal testing machine 5 or the pressing member 2 described below, thereby improving the detection precision.

In this embodiment, as shown in fig. 3 and 4, the second supporting portion 12 is preferably a rectangular flat plate, and the through hole is provided at the center of the rectangular flat plate, and the through hole may be the avoiding portion 122, and of course, the structure of the avoiding portion 122 is not limited to the through hole, but may be an avoiding groove, and may also accommodate the post 7 below the battery cover 6, that is, may function to avoid the post 7 below the battery cover 6.

Based on the above-described structure, the rectangular flat plate can provide a flat supporting surface 121, so that the supporting surface 121 is tightly attached to the battery cover plate 6, thereby avoiding gaps.

Note that: the structure of the support member 1 is not limited to the aforementioned structure including the first support portion 11 and the second support portion 12, for example, the support member 1 may be in a rectangular parallelepiped shape, the top surface thereof may be a support surface 121, the center thereof may be formed with the aforementioned escape hole or the escape groove, and the side portion of the support member 1 may be extended with a mounting plate, on which the aforementioned mounting through hole 111 is formed for mounting a screw or bolt to lock the support member 1 to the work platform 53, and the aforementioned mounting plate and the support member 1 may be in an integral structure or a split structure and connected by welding or the like.

In this embodiment, preferably, as shown in fig. 3 to 6, the tool for testing the withstand voltage of the battery post further includes a pressing member 2, and the bottom of the pressing member 2 in the height direction thereof is adapted to the portion to be tested of the product to be tested.

According to the above-described structure, in the actual use process, the pressing member 2 is mounted with the movable cross beam 51 of the universal testing machine 5, the lower end of the pressing member 2 is adapted to the shape of the top of the pole 7, and in the test process, the top of the pole 7 can be well attached, and pressure can be uniformly applied, so as to improve the detection accuracy. Note that: when the tool for voltage withstanding test of the battery pole is actually used, the original pressure head of the universal testing machine 5 can be used for pressing the pole 7 of the battery cover plate 6 in cooperation with the supporting member 1, and the pressing member 2 and the supporting member 1 in the embodiment can be used for being installed on the universal testing machine 5 in cooperation so as to press the pole 7 of the battery cover plate 6.

In this embodiment, preferably, as shown in fig. 3 to 6, the tool for testing the withstand voltage of the battery post further includes a mounting member 3, the pressing member 2 is screwed with the mounting member 3, and the pressing member 2 is assembled with a movable cross member 51 of a target object, that is, a universal testing machine 5, through the mounting member 3.

According to the above-described structure, the pressing member 2 is connected with the mounting member 3 by threads, so that a detachable connection mode is realized, and the pressing member 2 is convenient to repair or replace.

In this embodiment, preferably, as shown in fig. 3 to 6, the mounting member 3 is formed with a mounting cavity penetrating its bottom end portion in its height direction;

the press member 2 includes a press portion 21 and a screw connection portion 22 connected, and the screw connection portion 22 is screw-connected with the installation cavity.

According to the above-described structure, the screw connection portion 22 of the pressing member 2 is screwed into the lower portion of the installation cavity of the installation member 3, that is, both are connected by screw threads, and the upper portion of the installation member 3 is screwed into the installation recess of the installation seat 52 on the movable cross member 51 of the universal testing machine 5, that is, both are connected by screw threads, thereby installing the pressing member 2 on the movable cross member 51 of the universal testing machine 5.

Further, it is preferable that the mounting member 3 has a cylindrical shape as shown in fig. 3, and the lower portion of the mounting member 3 is opened with the aforementioned mounting cavity in the height direction thereof.

Further, as shown in fig. 4, the pressing portion 21 and the threaded connection portion 22 are preferably cylindrical, and for convenience of distinction, a first cylinder and a second cylinder are respectively provided, and an outer wall of the second cylinder is provided with an external thread, so that the threaded connection portion 22 is finally formed.

In this embodiment, preferably, as shown in fig. 3 to 6, the outer periphery of the bottom end portion of the mounting member 3 in the height direction thereof is formed with a stopper 31, the diameter size of the press portion 21, i.e., the first cylinder, is larger than the diameter size of the screw connection portion 22, i.e., the second cylinder, to form a stopper step, and the stopper step can abut against the stopper 31.

As is apparent from the above-described structure, the screw connection portion 22 of the press member 2 is inserted into the bottom end of the installation cavity of the installation member 3, and the press member 2 is continuously screwed until the limit step abuts against the limit portion 31 of the outer periphery of the installation member 3, thereby achieving firm assembly of the press member 2 and the installation member 3.

In this embodiment, preferably, as shown in fig. 4 and 7, the mounting member 3 is formed with positioning holes 32, and the positioning holes 32 penetrate opposite side portions of the mounting member 3 in a direction perpendicular to the height direction of the mounting member 3.

According to the above-described structure, the positioning pin is inserted into the positioning hole 32 of the mounting member 3 and the positioning hole 521 of the mounting seat 52 of the universal testing machine 5, so that the pressing member 2 is connected to the universal testing machine 5, but under the action of external force, the mounting member 3 can shake relative to the universal testing machine 5, so that the locking nut 4 needs to be arranged for positioning, and preferably, the tool for testing the battery post pressure resistance further comprises the locking nut 4, the locking nut 4 is sleeved outside the mounting member 3 and is connected with the mounting member 3 through threads, and the mounting member 3 is fixed by screwing the locking nut 4 upwards, so that the tool cannot shake under the action of external force, thereby being beneficial to improving the testing precision.

In summary, the process of performing the ultimate compressive strength test on the pole 7 of the battery cover plate 6 by using the tool for the voltage resistance test of the battery pole and the universal testing machine 5 is as follows:

the first step, the mounting member 3 is assembled with the mounting seat 52 of the movable cross beam 51 of the universal testing machine 5, and the base, namely the first supporting part 11, is fixedly mounted with the working platform 53 of the universal testing machine 5 through bolts or screws;

the second step, the matched pressing member 2 is installed on the installation member 3, and a backing plate matched with the inner side of the battery cover plate 6, namely, the second supporting part 12 is placed in the sliding groove 112 of the first supporting part 11;

thirdly, placing the battery cover plate 6 to be tested on a backing plate, wherein the size of the backing plate is slightly larger than that of the battery cover plate 6, so that the battery cover plate 6 does not deform obviously in the test process;

fourth, the position of the backing plate on the chute 112 is adjusted in the left-right direction, so that the upper part of the pole 7, namely the upper pole, is positioned right below the pressing member 2;

and fifthly, starting the universal testing machine 5, uniformly pressing the whole surface of the upper pole through the pressing member 2 until the structure of the pole 7 is damaged, and removing the pole 7 from the avoiding part 122 such as the avoiding hole to obtain the maximum test pressure, and obtaining the compressive strength of the pole 7 through calculation.

In summary, the tool for testing the voltage resistance of the battery post provided by the utility model can test the voltage resistance of the battery cover post 7 efficiently and accurately by means of the universal testing machine 5, and has the following advantages;

firstly, a pad structure which is attached to the inner side of the battery cover plate 6 and keeps away the lower pole 7, namely the lower part of the pole 7, is added, so that the battery cover plate 6 is tightly attached to the supporting surface 121, and further the problem that the conventional universal testing machine 5 cannot meet the ultimate compressive strength of the battery cover pole 7 is solved;

secondly, the structure is simple, and the processing and manufacturing cost is low;

thirdly, the suitability is wide: the pole 7 with different specifications and sizes can be tested by only replacing the backing plate and the compression bar, and the test precision is high, the efficiency is high, and the cost is low.

Fourthly, a detachable compression bar structure matched with the top of the upper pole of the battery cover plate 6 is designed and used for uniformly pressing the upper pole in the test process, and the compression test of the different battery cover pole 7 is carried out only by replacing the adaptive compression bar structure.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The tool for the withstand voltage test of the battery pole is characterized by comprising a supporting member, wherein the supporting member is provided with a supporting surface for supporting a product to be tested; the supporting member is further provided with an avoidance portion, and the avoidance portion penetrates through the supporting surface;

2. The tool for voltage withstand test of a battery post according to claim 1, wherein the first support portion is formed with a mounting through hole.

3. The tool for battery post voltage withstand test according to claim 2, wherein the cross section of the first support portion along the height direction thereof is U-shaped, the mounting through holes are formed in the lateral extension portions of the U-shaped structure, the sliding grooves are formed in both the two longitudinal extension portions of the U-shaped structure, and the sliding grooves penetrate through both sides of the corresponding longitudinal extension portions along the length direction of the U-shaped structure.

4. The tool for voltage withstand test of a battery post according to claim 1, wherein the second supporting portion is a rectangular flat plate.

5. The tool for voltage withstand test of a battery post according to claim 1, wherein the avoiding portion is an avoiding hole or an avoiding groove.

6. The tool for battery post pressure resistance testing according to any one of claims 1 to 5, further comprising a pressure setting member, a bottom of the pressure setting member in a height direction thereof being adapted to a portion to be tested of the product to be tested.

7. The tool for testing the withstand voltage of the battery post according to claim 6, further comprising a mounting member, wherein the pressing member is screwed with the mounting member, and the pressing member is assembled with the object through the mounting member.

8. The tool for battery post withstand voltage test according to claim 7, wherein the mounting member is formed with a mounting cavity penetrating a bottom end portion thereof in a height direction thereof; the pressing component comprises a pressing part and a threaded connection part which are connected, and the threaded connection part is in threaded connection with the mounting cavity;

9. The tool for testing the withstand voltage of the battery post according to claim 7, further comprising a lock nut, wherein the lock nut is sleeved outside the mounting member and is in threaded connection with the mounting member.