CN222185366U - A fixed sealing rivet nut structure - Google Patents

Abstract

The utility model discloses a fixed sealing rivet nut structure, belonging to the technical field of power batteries. The fixed sealing rivet nut structure comprises a rod body, which has an axial first end and a second end flange, which is arranged at the axial first end of the rod body; a stopper, which is constituted as an annular flange formed by the outer edge of the flange extending in the axial direction, and a sealing interval is defined by the stopper, the flange and the rod body. By adding a stopper at the position of the rivet nut flange, a sealing interval is defined by the stopper, the flange and the rod body, and a sealing component is cooperated to provide an effective sealing space, so that the seal is in a relatively ideal compression amount, ensuring the durability of the seal, and at the same time, the stopper abuts against the plate to achieve a hard connection between the metals of the rivet nut and the plate, ensuring the reliability of the connection.

Description

Fixed seal rivet nut structure

Technical Field

The utility model belongs to the technical field of power batteries, and particularly relates to a fixed sealing rivet nut structure.

Background

The power battery pack is used as one of important parts of the electric automobile, the safety and the reliability of the power battery pack are crucial, the battery pack box body is an armor for protecting the power battery pack, strict control is needed in design and manufacture, the battery pack box body is not separated from various connecting pieces, the functions of the various connecting pieces are different, and the rivet nut is a common connecting piece in the power battery pack.

The sealing performance of the sealing element is seriously influenced by the attenuation of the sealing performance of the sealing element because the sealing element is easy to be extruded and broken to influence the sealing performance or the infinite compression of the sealing element in the existing sealing rivet nut.

Disclosure of utility model

The utility model aims to provide a fixed sealing blind rivet nut structure which solves the problems of the prior blind rivet nut in the prior art in use in a power battery pack.

In order to achieve the above purpose, the utility model provides a fixed seal rivet nut structure for realizing connection of plate structures in a power battery box body, wherein the plate structures comprise at least one plate body, and the rivet nut comprises:

a rod body having first and second axial ends;

The flange part is arranged at the first axial end of the rod body part;

A stopper portion configured as an annular flange formed by extending an outer edge of the flange portion in an axial direction, and a sealing section is defined by the stopper portion, the flange portion, and the rod body portion together;

and a sealing member fitted in the sealing section.

Preferably, the seal member has a surplus portion protruding axially outwardly with respect to the stopper axial end face, and is configured to be compressible.

Preferably, the rod body has a deformation section and a thread section, and the deformation section is configured to deform during the installation process of the rivet nut, so that a part of the deformation section forms an expanded diameter portion.

Preferably, the shaft body has an axially extending bore formed therein, the bore comprising:

A first section formed at the deformed section position;

And a second section formed at the thread section and configured as a threaded hole.

Preferably, the first section is configured as a cylindrical bore, and the first section bore diameter is larger than the second section bore diameter.

Preferably, the shank is configured as a polygonal shank.

Preferably, the rod body is a hexagonal rod body.

Preferably, the at least one plate body includes:

The first plate body is provided with a first hole for the axial second end of the rod body to pass through, and one axial side end face of the first plate body is contacted with the end face of the stop part in the installation process of the rivet nut.

Preferably, the aperture of the first hole is larger than the outer diameter of the rod body.

Preferably, the at least one layer of board further comprises:

the second plate body is provided with a second hole for the second end of the rod body to pass through, and the second hole is matched with the rod body.

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

According to the application, the stop part is added at the flange part of the rivet nut, a sealing interval is defined by the stop part, the flange part and the rod body part together, and the sealing member is matched, so that an effective sealing space is provided, the sealing member is in a more ideal compression amount, the sealing durability is ensured, and meanwhile, the stop part is abutted against the plate, so that the hard connection between the rivet nut and the plate is realized, and the connection reliability is ensured.

Drawings

FIG. 1 is a schematic metal structure of a seal blind rivet nut of the present patent;

FIG. 2 is a schematic view of a cross-sectional structure of a metal structure of a seal blind rivet nut according to the present invention;

FIG. 3 is a schematic view of a seal blind rivet nut assembly of the present patent;

FIG. 4 is a schematic cross-sectional view of a seal blind rivet nut assembly according to the present disclosure;

fig. 5 is a schematic view of a cross-sectional structure of the sealing blind rivet nut in this patent.

In the figure:

10. Pulling and riveting a nut;

100. The device comprises a rod body part, a deformation section, a thread section, a 100b, a 100c, an expanded diameter part, a 101, a hole, a 101a, a first section, a 101b and a second section;

200. A flange portion;

300. a stop portion;

400. Sealing member 400a, inner peripheral surface 400b, outer peripheral surface 400c, first end surface 400d, second end surface 400e, surplus portion 401, sealing section;

500. First plate body, 501, first holes, 502, second plate body, 503, second holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

A fixed seal blind rivet nut structure (hereinafter referred to as blind rivet nut 10) for realizing connection and sealing of a plate structure in a power battery case, wherein the plate structure has at least one plate body, referring to fig. 1 and 2, the blind rivet nut 10 body is composed of a shank portion 100 and a flange portion 200, wherein the shank portion 100 has a first end and a second end in an axial direction, and comprises a deformed section 100a and a threaded section 100b, wherein the threaded section 100b is configured as a section of the shank portion 100 adjacent to the second end, the deformed section 100a is configured as a section of the shank portion 100 adjacent to the first end, correspondingly, the flange portion 200 is configured as a disc-shaped member provided at the first end of the shank portion 100, further, an axially extending hole 101 is formed in the shank portion 100, and the threaded section 100b and the deformed section 100a of the shank portion 100 correspond to each other, the hole 101 has a first section 101a and a second section 101b, wherein the first section 101a is formed at a position of the threaded section 100b is configured as a cylindrical hole, for example, and the second section 101b is configured as a threaded section 100b is formed at a position of the threaded section, for example, and the deformed section 101b is configured as a radial rivet hole for example, and the deformed section is mounted to the flange portion 10a is mounted to the deformed nut (for example, the deformed nut 10a is mounted to be mounted to the deformed nut 10a radially-shaped to be mounted to the deformed nut 10a, and a deformed to be mounted to the deformed section is mounted to the deformed section).

In some embodiments, referring to fig. 1 and 2, the blind rivet nut 10 further includes a stopper 300, wherein the stopper 300 is configured as an annular flange formed by extending an outer edge of the flange 200 in an axial direction, and a sealing section 401 is defined by the stopper 300, the flange 200 and the stem 100, and the sealing section 401 is generally configured as an annular groove for accommodating a subsequent sealing member 400.

In some embodiments, referring to fig. 3 and 4, the blind rivet nut 10 further includes a sealing member 400, where the sealing member 400 is assembled in the sealing section 401, and corresponds to the sealing section 401, the sealing member 400 is generally configured as an annular member, and the sealing member 400 has a circumferential inner circumferential surface 400a and an outer circumferential surface 400b, and a first end surface 400c and a second end surface 400d, where the inner circumferential surface 400a and the outer circumferential surface 400b are respectively abutted with an outer wall of the rod body 100 and an inner wall of the stopper 300, the first end surface 400c of the sealing member 400 is abutted with an axial end surface of the flange 200, and the second end surface 400d is axially outwardly protruded with respect to an axial end surface of the stopper 300, i.e., the sealing member 400 has a surplus portion 400e axially outwardly protruded from the sealing section 401, and the sealing member 400 is configured to be deformable, i.e., the sealing member 400 is made of a material such as rubber, so that the sealing member 400 can be compressed and fill the sealing section 401 to realize sealing during installation of the blind rivet nut 10.

In some embodiments, the rod body 100 is configured to have a polygonal shape, for example, a hexagonal shape, to perform an anti-rotation function.

Referring to fig. 5, a schematic diagram of an installation state of the blind rivet nut 10 is shown, in which an installation schematic diagram of a double-layer plate based on the blind rivet nut 10 is exemplarily given, and the two plates are respectively marked as a first plate body 500 and a second plate body, wherein a first hole 501 and a second hole 502 are respectively formed on the first plate body 500 and the second plate body, during the installation process of the blind rivet nut 10, a second end of the blind rivet nut 10 sequentially passes through the first hole 501 and the second hole 503, after a second end face 400d of the sealing member 400 contacts with an axial end face of the first plate body 500, under the action of a blind rivet tool (e.g. a blind rivet gun), a deformation section 100a of the blind rivet nut 10 deforms and forms an expanded diameter portion 100c, and the axial end face of the stop portion 300 in the blind rivet nut 10 contacts with an end face of the first plate body 500, so as to realize a rigid connection between the multiple layers of the plates, and improve the reliability of the connection strength, and simultaneously, the second end face 400d of the blind rivet nut 10 sequentially passes through the first hole 501 and the second plate body 502, and the second plate body 500 are clamped by the cooperation of the stop portion 300 and the expanded diameter portion 100c, and the sealing member is compressed by the flange portion (e.g. the sealing member 500) in the clearance part of the blind flange part) and the sealing member (e.g. the sealing member) is compressed in the first hole part 500, and the hole part is formed in the clearance part of the clearance part (e.g. the blind flange part).

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a fixed seal draws and rivets nut structure which characterized in that for realize the connection of power battery box medium plate structure, plate structure includes at least one layer plate body, draw and rivet nut includes:

a rod body having first and second axial ends;

The flange part is arranged at the first axial end of the rod body part;

A stopper portion configured as an annular flange formed by extending an outer edge of the flange portion in an axial direction, and a sealing section is defined by the stopper portion, the flange portion, and the rod body portion together;

and a sealing member fitted in the sealing section.

2. The fixed seal blind rivet nut structure as set forth in claim 1, characterized in that said seal member has a surplus portion protruding axially outwardly with respect to an axial end face of said stopper portion and is configured to be compressible.

3. A fixed seal blind rivet nut structure as set forth in claim 1 or 2, characterized in that said shank portion has a deformed section and a threaded section, said deformed section being configured to deform during installation of said blind rivet nut such that a portion of said deformed section forms an enlarged diameter portion.

4. The fixed seal blind rivet nut structure as set forth in claim 3, characterized in that said shank portion has an axially extending bore formed therein, said bore comprising:

A first section formed at the deformed section position;

And a second section formed at the thread section and configured as a threaded hole.

5. The fixed seal blind rivet nut structure as set forth in claim 4, wherein said first section is configured as a cylindrical bore and said first section bore diameter is larger than said second section bore diameter.

6. The fixed seal blind rivet nut structure as set forth in claim 1, wherein said shank portion is configured as a polygonal shank.

7. The fixed seal blind rivet nut structure according to claim 1, wherein the rod body is a hexagonal rod body.

8. The fixed seal blind rivet nut structure as set forth in claim 1, characterized in that said at least one plate body comprises:

The first plate body is provided with a first hole for the axial second end of the rod body to pass through, and one axial side end face of the first plate body is contacted with the end face of the stop part in the installation process of the rivet nut.

9. The fixed seal blind rivet nut structure as set forth in claim 8, wherein said first bore has a diameter greater than an outer diameter of said shank portion.

10. The fixed seal blind rivet nut structure as set forth in claim 8 or 9, characterized in that said at least one plate further comprises:

the second plate body is provided with a second hole for the second end of the rod body to pass through, and the second hole is matched with the rod body.