CN218725072U

CN218725072U - Helium detection tool and helium detection equipment

Info

Publication number: CN218725072U
Application number: CN202223006268.5U
Authority: CN
Inventors: 李唤唤; 徐立舰; 杨华均; 范云昊
Original assignee: Lujiang Lixiang Battery Technology Co ltd
Current assignee: Lujiang Lixiang Battery Technology Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-03-24
Anticipated expiration: 2032-11-11

Abstract

The utility model discloses a helium detects frock and helium and examines equipment. The helium detection tool comprises a bottom plate, a top plate, a cylinder, a pressing plate and a positioning piece. The bottom plate is fixedly connected with a plurality of upright posts. The top plate is positioned on one side of the bottom plate and is fixedly connected to the upright post. The cylinder top plate is fixedly connected. The clamp plate is fixedly connected to the cylinder rod of the air cylinder, and a cavity is formed in the clamp plate. An air inlet communicated with the cavity is arranged on the side wall of the pressure plate. The side wall of the pressing plate close to the bottom plate is provided with an air outlet communicated with the cavity. The setting element passes through the support frame to be installed on the bottom plate, and has seted up inside and has detected the chamber. One side of the positioning piece far away from the bottom plate is provided with a binding face parallel to the pressing plate. The binding surface is provided with a detection port corresponding to the air outlet. The detection port is communicated with the detection cavity. The side wall of the positioning piece is also provided with an air exhaust opening communicated with the detection cavity. Through the setting element that is provided with binding face, the battery aluminum hull cover is established outside the setting element, and the position of control explosion-proof valve just can in detection mouthful top, convenient to use.

Description

Helium detection tool and helium detection equipment

Technical Field

The utility model relates to a technical field is made in the production of battery, concretely relates to frock and helium detection equipment are examined to helium.

Background

A cylindrical battery for an automobile generally includes a cover plate and a case, and after the cover plate and the case are manufactured, the air tightness of the cover plate needs to be measured. The helium leakage detection process is a main leakage detection mode of the conventional battery structural member, and is used for detecting whether the sealing performance of the corresponding cover plate structure is intact or not.

At present, the cover plate and the case of the battery are generally of a split design, and are also sequentially performed when performing the airtightness measurement. Referring to fig. 1, a conventional detection tool generally includes a bottom plate 1, a pressing plate 5 and a cylinder 4, when detecting the air tightness of the cover plate, the cover plate is placed on the bottom plate, the cylinder drives the pressing plate to descend, the cover plate is fixed between the pressing plate and the bottom plate, and helium is introduced for detection. After the cover plate is detected, a shell detection clamp is additionally arranged on the bottom plate, and then the shell is placed on the clamp for detection. Therefore, in the air tightness detection process of the cover plate and the shell, the air tightness detection process cannot be completed through one set of tool, the tool needs to be adjusted, the applicability is reduced, and the detection efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a frock is examined to helium.

The utility model solves the technical problems that: the existing detection tool is inconvenient to carry out air tightness detection on the cover plate and the shell.

The purpose of the utility model can be realized by the following technical proposal:

a helium detection tool comprises a bottom plate, a top plate, a cylinder, a pressing plate and a positioning piece.

The bottom plate is fixedly connected with a plurality of upright posts.

The top plate is positioned on one side of the bottom plate and is fixedly connected to the upright post.

The cylinder top plate is fixedly connected.

The clamp plate fixed connection has seted up the cavity in the clamp plate on the jar pole of cylinder. An air inlet communicated with the cavity is arranged on the side wall of the pressure plate. The side wall of the pressing plate close to the bottom plate is provided with an air outlet communicated with the cavity.

The setting element passes through the support frame to be installed on the bottom plate, and has seted up inside and detect the chamber. One side of the positioning piece, which is far away from the bottom plate, is provided with a binding surface parallel to the pressing plate. The binding surface is provided with a detection port corresponding to the air outlet. The detection port is communicated with the detection cavity. An air suction opening communicated with the detection cavity is also formed in the side wall of the positioning piece;

wherein a gap is reserved between the positioning piece and the bottom plate.

As a further aspect of the present invention: the binding surface is provided with a sealing ring. The sealing ring surrounds the detection port.

As a further aspect of the present invention: the binding surface is inwards recessed with a groove. The detection port is positioned in the groove. The binding surface is provided with a sealing ring. The sealing ring surrounds the groove.

As a further aspect of the present invention: the support frame includes the riser of fixed mounting on the bottom plate. One end of the positioning piece is arranged on one side of the vertical plate. Wherein a gap is reserved between the positioning piece and the bottom plate.

As a further aspect of the present invention: the air inlet is connected with a helium gas source. And a helium detector for detecting helium is arranged in the detection cavity.

As a further aspect of the present invention: the air extraction opening is connected with a vacuum-pumping device.

The utility model also discloses a helium detects equipment, examine the frock including the helium.

The utility model discloses one of them item that has following beneficial effect at least:

(1) Through the positioning piece with the binding surface, when the battery aluminum shell is used, the battery aluminum shell is sleeved outside the positioning piece (the cover plate is placed on the binding surface), the position of the explosion-proof valve is controlled to be above the detection port, the use is convenient, and the air tightness detection of the battery aluminum shells with different sizes can be met;

(2) The sealing ring is arranged on the periphery of the detection port, so that the accuracy of air tightness detection can be further improved;

(3) Through seting up the recess on the setting element surface, can avoid when the pressfitting to cause the damage to explosion-proof valve, effectively protect the structural integrity of battery aluminum hull and apron.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a prior art inspection tool;

fig. 2 is a schematic structural view of the helium testing tool of the present invention;

FIG. 3 is a schematic structural view of the positioning member of the present invention;

FIG. 4 is a schematic structural view of the pressing plate of the present invention;

fig. 5 is a schematic diagram of the aluminum case of the battery of the present invention disposed on the positioning member.

In the figure: 1. a base plate; 2. a column; 3. a top plate; 4. a cylinder; 5. pressing a plate; 6. a vertical plate; 7. a positioning member; 701. a binding face; 8. a detection port; 9. an air inlet; 10. and an air outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

The utility model discloses a helium detection equipment, including helium detection frock, helium gas pitcher, helium gas detector, trachea and so on. The helium detection equipment is used for detecting the air tightness of the battery aluminum shell and the cover plate.

It should be noted that the utility model discloses in, the helium is examined the frock and is used for fixing a position battery aluminum hull and apron, is convenient for carry out the gas tightness and detects, and the helium is examined frock cooperation helium gas pitcher, helium detector and trachea, examines battery aluminum hull and apron on the frock and carry out the helium to fixing the helium and examine.

The utility model discloses still further disclose helium and examine frock, please refer to fig. 2-5, helium examines frock and includes bottom plate 1, roof 3, cylinder 4, clamp plate 5 and setting element 7 etc.. The bottom plate 1 is fixedly connected with a plurality of upright posts 2. The top plate 3 is positioned at one side of the bottom plate 1, and the top plate 3 is fixedly connected to the upright post 2. The top plate 3 of the cylinder 4 is fixedly connected. The pressing plate 5 is fixedly connected to a cylinder rod of the air cylinder 4, and a cavity is formed in the pressing plate 5. An air inlet 9 communicated with the cavity is arranged on the side wall of the pressure plate 5. The side wall of the pressure plate 5 close to the bottom plate 1 is provided with an air outlet 10 communicated with the cavity. The positioning piece 7 is installed on the bottom plate 1 through a support frame, and a detection cavity is formed inside the positioning piece. The side of the positioning piece 7 away from the bottom plate 1 is provided with a binding surface 701 parallel to the pressing plate 5. The bonding surface 701 is provided with a detection port 8 corresponding to the air outlet 10. The detection port 8 is communicated with the detection cavity. An air suction opening communicated with the detection cavity is further formed in the side wall of the positioning piece 7.

It should be noted that, carry out the gas tightness to battery aluminum hull and apron and detect that the explosion-proof valve on also exactly battery aluminum hull lateral wall and apron detects, and battery aluminum hull both ends are well logical, consequently, the utility model discloses a frock is examined to the helium when using, at first establishes battery aluminum hull from a pot head of setting element 7 and enters, and the explosion-proof valve of up to battery aluminum hull is located the top that detects mouth 8, and after the position is confirmed, cylinder 4 work drives 5 extrudees down of clamp plate, presses battery aluminum hull on setting element 7 up to clamp plate 5, and at this moment, the explosion-proof valve is located between detection mouth 8 and the gas outlet 10. Through will detecting the intracavity by the extraction opening and take out to vacuum, the rethread is injected into the helium to the cavity of clamp plate 5 by income gas port 9, and the helium can be gathering in the cavity, if explosion-proof valve gas tightness does not accord with the requirement, the helium can overflow to detecting the intracavity by explosion-proof valve and be detected, otherwise then can not. Similarly, the cover plates are placed on the binding surface 701.

The utility model discloses a helium is examined frock is through setting element 7 that is provided with binding face 701, and when using, the battery aluminum hull cover is established outside setting element 7, and the position of control explosion-proof valve can in 8 tops of detection mouth, convenient to use, and can satisfy the gas tightness detection of the battery aluminum hull of not unidimensional size.

In one embodiment of the present invention, the abutting surface 701 is provided with a sealing ring. The sealing ring surrounds the outside of the detection opening 8. Through setting up the sealing washer, when having guaranteed the test, detect mouth 8, gas outlet 10, explosion-proof valve all in the encirclement circle of sealing washer, improve the precision that the gas tightness detected.

The utility model discloses a in one of them embodiment, the junction of considering explosion-proof valve and battery aluminum hull probably has the concave surface, probably causes the damage to explosion-proof valve in the 5 extrusion processes of clamp plate, consequently, can set up the recess at binding face 701 inwards sunken. The detection port 8 is located in the groove. The contact surface 701 is provided with a seal ring. The sealing ring surrounds the groove. When the detection is carried out, the explosion-proof valve is positioned in the groove space, so that the explosion-proof valve cannot be extruded, and meanwhile, the detection effect can also be achieved.

In one embodiment of the present invention, the supporting frame comprises a vertical plate 6 fixedly installed on the bottom plate 1. One end of the positioning piece 7 is arranged at one side of the vertical plate 6. Wherein, a gap is reserved between the positioning piece 7 and the bottom plate 1. It should be noted that, a gap is left between the positioning member 7 and the bottom plate 1 to ensure that the aluminum case of the battery can be inserted into the aluminum case of the battery smoothly, and the size of the gap also determines the size of the battery. Referring to fig. 3, taking the positioning member 7 as an example, the positioning member 7 is a rectangular parallelepiped, and the size of the battery aluminum case should be larger than the length, width and height of the rectangular parallelepiped, but the maximum height should not exceed the distance between the upper surface of the rectangular parallelepiped and the bottom plate 1.

Further, setting element 7 can be demountable installation on riser 6, for example through the bolt mounting on riser 6, when utilizing this frock to carry out the detection of other structures, can demolish setting element 7.

In one embodiment of the present invention, the gas inlet 9 is connected to a helium gas source. And a helium detector for detecting helium is arranged in the detection cavity.

In one embodiment of the present invention, the air pumping port is connected to a vacuum pumping device.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a frock is examined to helium which characterized in that includes:

a base plate (1) to which a plurality of columns (2) are fixedly connected;

the top plate (3) is positioned on one side of the bottom plate (1), and the top plate (3) is fixedly connected to the upright post (2);

the cylinder (4) is fixedly connected with the top plate (3);

the pressing plate (5) is fixedly connected to a cylinder rod of the air cylinder (4), and a cavity is formed in the pressing plate (5); an air inlet (9) communicated with the cavity is formed in the side wall of the pressing plate (5); the side wall of the pressing plate (5) close to the bottom plate (1) is provided with an air outlet (10) communicated with the cavity; and

the positioning piece (7) is installed on the bottom plate (1) through a support frame, and a detection cavity is formed in the positioning piece; a binding surface (701) parallel to the pressure plate (5) is arranged on one side of the positioning piece (7) far away from the bottom plate (1); the binding surface (701) is provided with a detection port (8) corresponding to the air outlet (10); the detection port (8) is communicated with the detection cavity; an air extraction opening communicated with the detection cavity is further formed in the side wall of the positioning piece (7);

wherein a gap is reserved between the positioning piece (7) and the bottom plate (1).

2. The helium testing tool as claimed in claim 1, wherein a sealing ring is arranged on the abutting surface (701); the sealing ring surrounds the outside of the detection port (8).

3. The helium testing tool as claimed in claim 1, wherein the abutting surface (701) is recessed inwards by a groove; the detection port (8) is positioned in the groove; a sealing ring is arranged on the binding surface (701); the seal ring surrounds the groove.

4. The helium testing tool according to claim 1, wherein the support frame comprises a vertical plate (6) fixedly mounted on the bottom plate (1); one end of the positioning piece (7) is arranged on one side of the vertical plate (6).

5. The helium detection tool according to claim 1, wherein the gas inlet (9) is connected with a helium gas source; and a helium detector for detecting helium is arranged in the detection cavity.

6. The helium testing tool according to claim 1, wherein the pumping port is connected with a vacuum pumping device.

7. A helium testing apparatus comprising a helium testing tool according to any one of claims 1 to 6.