CN220670816U - Battery Pack airtight test protector - Google Patents

Abstract

The application provides a battery Pack airtight test protector relates to new forms of energy battery equipment technical field. The battery Pack airtight test protector comprises at least two balanced lifting ropes, at least two lifting rings, at least two gripper assemblies and a pressing plate, wherein each two lifting rings are symmetrically arranged on the pressing plate, each two balanced lifting ropes can be respectively hung on the corresponding lifting rings, each two gripper assemblies are symmetrically fixed on the pressing plate, the pressing plate is pressed on the surface of a box body of the battery Pack during testing, and at least two gripper assemblies can clamp the box body of the battery Pack, so that good battery Pack airtight test protection function is achieved, and meanwhile cost is saved to a large extent.

Description

Battery Pack airtight test protector

Technical Field

The application relates to the technical field of new energy battery equipment, in particular to a battery Pack airtight test protection device.

Background

The current new energy automobile safety accident occurs, and one important factor is that the sealing performance of an automobile battery Pack is unqualified. The protection grade of the current battery Pack is IP67, which is mainly realized by structural sealing of the battery Pack and auxiliary sealing of a sealing ring. The structural seal comprises integral welding of the box body and bolt fastening of the box cover, and the sealing ring is formed by adding a circle of sealing gasket or sealing glue between the box covers to assist in better sealing.

The air tightness test of the battery Pack comprises a liquid cooling air tightness test and an entire package air tightness test, wherein the liquid cooling air tightness test refers to an air tightness test of a liquid cooling pipeline, the battery short circuit caused by leakage of the liquid cooling pipeline is prevented, the battery is not subjected to an electrified core module test during the test, and the liquid cooling pipeline is formed by welding metal plates and is firm. The whole Pack air tightness test is to perform an air tightness test on the inner part of the whole battery Pack cavity, and then the battery Pack cavity is tested by a battery module, and any expansion deformation of the cavity caused by overcharge operation can cause irreversible damage to the battery Pack, and the protection grade of the battery Pack also mainly refers to the test of the part. Therefore, the safety protection of the battery Pack airtight test mainly refers to the safety protection of the battery Pack full package airtight test.

The current common protection mechanism is shown in fig. 1, a battery Pack is placed on a placing table, a pressing mechanism capable of automatically controlling up-and-down movement is installed on an external supporting frame, and the automatic mechanism controls the rotation of a screw rod through a motor to realize up-and-down movement of a pressing piece. The principle of the airtight test protection device is as follows: the battery cell module can release a certain amount of gas in the charge and discharge process, the gas gathers and then generates pressure on the wall surface of the box body, in order to simulate the pressure, the battery pack is filled with the gas with a certain pressure and a certain time in the test, and the box cover is thinner and deforms in a safety range, so that a layer of limiting surface is required to be arranged above the box cover to prevent the deformation of the box cover, and the self-bearing deformation capacity of the box body can be detected while the box body is protected.

Because each time the battery Pack air tightness test needs to be performed by an electric device such as a driving motor and a screw, frequent air tightness tests are not beneficial to cost saving, and because the application of the battery Pack air tightness test is limited by high cost, a more cost-saving protection mode for the battery Pack air tightness test is also necessary.

Disclosure of Invention

In view of this, the embodiments of the present disclosure provide a protection device for testing battery Pack airtight, which realizes a good protection function for testing battery Pack airtight and saves costs to a greater extent.

The embodiment of the specification provides the following technical scheme:

the battery Pack airtight test protection device comprises at least two balanced lifting ropes, at least two lifting rings, at least two gripper assemblies and a pressing plate, wherein each two lifting rings are symmetrically arranged on the pressing plate, each two balanced lifting ropes can be respectively hung on the corresponding lifting rings, each two gripper assemblies are symmetrically fixed on the pressing plate, the pressing plate is pressed on the surface of a box body of the battery Pack during testing, and at least two gripper assemblies can clamp the box body of the battery Pack.

In some embodiments, the balancing sling includes a retractable rebound strand.

In some embodiments, at least two hooks are arranged at the lower part of the balance lifting rope, and each two hooks are respectively matched with the corresponding lifting rings.

In some embodiments, at least two of the lifting rings are welded to the pressure plate.

In some embodiments, the tongs subassembly includes preforming, cushion, support section of thick bamboo, well logical piece, telescopic strip and handle, wherein, telescopic strip transversely passes the through-hole of well logical piece, telescopic strip one side with handle fixed connection, the opposite side stretch out the through-hole of well logical piece and can with well logical piece relative slip, support section of thick bamboo is located on the well logical piece, the cushion with the preforming is located in proper order support section of thick bamboo top, through the cushion with the preforming will tongs subassembly is fixed in the clamp plate, the handle makes one side that the telescopic strip stretches out can block the box string limit of battery Pack.

In some embodiments, the press plate and the cushion block are provided with screw holes corresponding up and down, so that the press plate and the cushion block are in threaded connection through the screw holes.

In some embodiments, the handle is located on a side remote from the platen.

In some embodiments, threaded holes are formed in the middle through block and the telescopic strip.

In some embodiments, the number of the balance lifting rope, the lifting ring and the gripper assembly is 4, and the balance lifting rope, the lifting ring and the gripper assembly are respectively and uniformly distributed at four corners of the pressing plate.

In some embodiments, the platen is a hollow structure or a hollow structure.

Compared with the prior art, the beneficial effects that above-mentioned at least one technical scheme that this description embodiment adopted can reach include at least: the high-cost mode of controlling large-scale electrical equipment such as a lead screw and a motor in the past is changed, complex electrical equipment is replaced by matching among the balance lifting rope, the gripper assembly and the pressing plate, the pressing plate acting on the battery Pack can move up and down during testing, the airtight test protection function of the battery Pack is well realized, the cost is saved to a great extent, and the operation is simpler, more convenient and easier.

Drawings

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

FIG. 1 is a schematic diagram of a prior art battery Pack air tightness test protection mechanism;

FIG. 2 is a schematic diagram of a battery Pack airtight test protection device according to an embodiment of the present application;

FIG. 3 is a schematic view of a partial structure of a battery Pack airtight test protection device according to an embodiment of the present application;

fig. 4 is a schematic partial structure diagram of a battery Pack airtight test protection device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application are described in detail below with reference to the accompanying drawings.

Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, apparatus may be implemented and/or methods practiced using any number and aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concepts of the application by way of illustration, and only the components related to the application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the present utility model may be practiced without these specific details.

As shown in fig. 2, the battery Pack airtight test protection device provided by the embodiment of the application includes at least two balanced lifting ropes 1, at least two lifting rings 2, at least two gripper assemblies 3 and a pressing plate 4, wherein each two lifting rings are symmetrically arranged on the pressing plate 4, each two balanced lifting ropes 1 can be respectively hung on the corresponding lifting rings 2, each two gripper assemblies 3 are symmetrically fixed on the pressing plate 4, the pressing plate 4 is pressed on the surface of the box body of the battery Pack during testing, and the at least two gripper assemblies 3 can clamp the box body of the battery Pack. The device completely changes the high-cost mode of controlling large-scale electrical equipment such as the lead screw, the motor and the like, and can realize the up-and-down motion of the pressing plate acting on the battery Pack during the test by balancing the coordination among the lifting rope, the gripper assembly and the pressing plate, thereby saving the cost to a greater extent and being simpler to operate while well realizing the airtight test protection function of the battery Pack.

The balance lifting rope 1 is a device which can be freely stretched and rebounded after being released. In some embodiments, the balancing sling 1 comprises a retractable rebound rope. In addition, in some embodiments, at least two hooks are arranged at the lower part of the balance lifting rope 1, and each two hooks are respectively matched with the lifting rings 2 corresponding to the lower part. In some embodiments, at least two lifting rings 2 are welded to the pressure plate 4 for stability and system stability. In some embodiments, in order to further improve the stability and balance of the system, the number of the balance lifting ropes 1, the lifting rings 2 and the handle assemblies 3 is 4, so that the balance lifting ropes 1, the lifting rings 2 and the handle assemblies 3 can be respectively and uniformly distributed at four corners of the pressing plate 4, specifically, the positions of the lifting rings 2 and the handle assemblies 3 on the pressing plate 4 can be staggered, for example, the lifting rings 2 are arranged at four corners of the pressing plate 4, and the upper parts of the handle assemblies 3 are also fastened at four corners of the pressing plate 4 and are adjacent to or staggered with the lifting rings 2.

In some embodiments, referring to fig. 3 and 4, the gripper assembly 3 includes a compression plate 31, a cushion block 32, a support cylinder 33, a center through block 34, a telescopic bar 35, and a handle 36. The telescopic bar 35 transversely passes through the through hole of the middle through block 34, one side of the telescopic bar 35 is fixedly connected with the handle 36, the other side of the telescopic bar 35 extends out of the through hole of the middle through block 34 and can slide relative to the middle through block 34, the supporting cylinder 33 is located on the middle through block 34, the cushion block 32 and the pressing sheet 31 are sequentially arranged above the supporting cylinder 33 (the cushion block 32 is fixedly arranged on the supporting cylinder 34, the pressing sheet is fixedly arranged on the cushion block 32), the gripper assembly 3 is fixed on the pressing plate 4 through the cushion block 32 and the pressing sheet 31, and the handle 36 enables one side of the telescopic bar 35 extending out of the telescopic bar to be clamped with the box hanging edge 5 of the battery Pack, for example, the upper surface of the telescopic bar 35 props against the lower surface of the box hanging edge 5.

In some embodiments, the press plate 31 and the spacer block 32 are each provided with a threaded hole 37 corresponding up and down, so as to be screwed with the outer edge of the press plate 4 via the threaded holes 37. In some embodiments, the handle 36 is located on a side remote from the platen 4 to facilitate telescopic sliding movement of the telescopic bar 35 relative to the central block 34 by the handle 36. Furthermore, in some embodiments, the middle through block 34 is provided with a threaded hole 38, and the telescopic bar 35 is also provided with a threaded hole 39, so as to more conveniently and firmly lock the handle assembly 3 on the pressing plate 4. In addition, in some embodiments, the platen 4 is a hollow structure or a hollow structure, such as a grid-type hollow structure, further saving on the cost of the apparatus. In some embodiments, to ensure good contact with the underlying battery Pack, the surface of the platen 4 in contact with the battery Pack is provided as a planar surface.

The working process of the battery Pack airtight test protection device for airtight test protection is as follows:

1. moving the battery Pack to a specified position;

2. performing downward stretching operation of the rope of the balance lifting rope 1 to enable the pressing plate 4 to be close to the upper surface of the battery Pack;

3. the telescopic bar 35 is driven to move towards the direction close to the battery Pack by pushing the handle 36, so that the upper surface of the telescopic bar 35 is propped against the lower surface of the hanging edge 5 of the box body;

4. after confirming the moving length of the telescopic bar 35, loosening the rope of the balance lifting rope 1, and automatically rebounding and tensioning the battery Pack, wherein the weight of the battery Pack is far greater than the tensioning force of the balance lifting rope 1, so that the balance lifting rope 1 only can tension the rope and cannot lift the battery Pack;

5. starting an airtight test, and when the upper cover of the battery Pack bulges and deforms to a certain height, the upper cover of the box body of the battery Pack is subjected to resistance of the upper pressing plate 4 so as to reduce deformation;

6. stopping the test, and recovering the upper cover of the box body to the original state.

It should be noted that the operations of the balance rope 1 and the handle 36 may be performed manually or may be performed in other simple and automatic manners, which are not particularly limited in the embodiment of the present application.

To sum up, the battery Pack airtight test protector provided by the embodiment of the application has at least the following beneficial effects compared with the prior art: the high-cost mode of controlling large-scale electrical equipment such as a lead screw and a motor in the past is changed, complex electrical equipment is replaced by matching among the balance lifting rope, the gripper assembly and the pressing plate, the pressing plate acting on the battery Pack can move up and down during testing, the airtight test protection function of the battery Pack is well realized, the cost is saved to a great extent, and the operation is simpler, more convenient and easier.

In this specification, identical and similar parts of the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. Meanwhile, the specification uses specific words to describe the embodiments of the specification. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the present description. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present description may be combined as suitable.

Furthermore, the order in which the elements and sequences are processed, the use of numerical letters, or other designations in the description are not intended to limit the order in which the processes and methods of the description are performed unless explicitly recited in the claims. While certain presently useful inventive embodiments have been discussed in the foregoing disclosure, by way of various examples, it is to be understood that such details are merely illustrative and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements included within the spirit and scope of the embodiments of the present disclosure. For example, while the system components described above may be implemented by hardware devices, they may also be implemented solely by software solutions, such as installing the described system on an existing processing device or mobile device.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations to the present disclosure may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this specification, and therefore, such modifications, improvements, and modifications are intended to be included within the spirit and scope of the exemplary embodiments of the present utility model.

Claims (10)

1. The utility model provides a battery Pack airtight test protector, its characterized in that includes two at least balanced lifting ropes, two at least rings, two at least tongs subassembly and clamp plate, every two the rings symmetry is located on the clamp plate, every two balanced lifting ropes can hang respectively on corresponding rings, every two tongs subassembly symmetry is fixed in on the clamp plate, during the test the clamp plate is pressed on the box surface of battery Pack, at least two tongs subassembly can the card is grabbed battery Pack's box.

2. The battery Pack air tightness test guard of claim 1 wherein said balancing sling comprises a retractable resilient strand.

3. The battery Pack airtight test protection device according to claim 1, wherein at least two hooks are arranged at the lower part of the balance lifting rope, and each two hooks are respectively matched with the corresponding lifting ring.

4. The battery Pack air tightness test guard of claim 1 wherein at least two of said lifting rings are welded to said pressure plate.

5. The battery Pack airtight test protector according to claim 1, wherein the gripper assembly comprises a pressing sheet, a cushion block, a supporting cylinder, a middle through block, a telescopic strip and a handle, wherein the telescopic strip transversely penetrates through a through hole of the middle through block, one side of the telescopic strip is fixedly connected with the handle, the other side of the telescopic strip stretches out of the through hole of the middle through block and can slide relative to the middle through block, the supporting cylinder is located on the middle through block, the cushion block and the pressing sheet are sequentially arranged above the supporting cylinder, the gripper assembly is fixed to the pressing sheet through the cushion block and the pressing sheet, and one side, stretching out of the telescopic strip, of the handle can be clamped with a box hanging edge of the battery Pack.

6. The battery Pack airtight test protection apparatus according to claim 5, wherein the pressing piece and the cushion block are provided with screw holes corresponding up and down, so that the pressing piece is screwed with an outer edge of the pressing plate through the screw holes.

7. The battery Pack air tightness test guard of claim 5 wherein said handle is located on a side remote from said pressure plate.

8. The battery Pack airtight test protection device according to claim 5, wherein threaded holes are formed in the middle through block and the telescopic strip.

9. The battery Pack airtight test protection device according to claim 1, wherein the number of the balance lifting ropes, the lifting rings and the gripper assemblies is 4, and the balance lifting ropes, the lifting rings and the gripper assemblies are respectively and uniformly distributed at four corners of the pressing plate.

10. The battery Pack air tightness test protection device according to any of claims 1 to 9, wherein said pressure plate is of hollow or hollow construction.