CN219655063U - Rivet nut, battery and electric equipment - Google Patents

Abstract

The utility model belongs to the field of fasteners, and provides a rivet nut, a battery and electric equipment, wherein the rivet nut comprises a compression ring and a sleeve body, the sleeve body comprises a deformation section and a locking section, and two ends of the deformation section are respectively connected with the compression ring and the locking section; at least part of the cross section area of the deformation section gradually reduces from the compression ring towards the locking section, so that at least part of the deformation section is in a tapered shape, and anti-rotation teeth are arranged on the outer wall surface of the deformation section. The battery comprises a battery box adopting the rivet nut, and the electric equipment comprises the battery. When the rivet nut is riveted, after the sleeve body is inserted into the installation hole of the riveted part in place, the tapered part of the deformation section is in interference fit with the installation hole of the riveted part, and the anti-rotation teeth are embedded into the riveted part from the inner wall surface of the installation hole, so that the anti-rotation performance of the rivet nut is improved, the rivet nut can bear larger torsion force, and the rivet nut is not easy to loosen during riveting or long-term use.

Description

Rivet nut, battery and electric equipment

Technical Field

The utility model belongs to the technical field of fasteners, and particularly relates to a rivet nut, a battery and electric equipment.

Background

The rivet nut is a fastener which is fastened and connected with a riveted part in a riveting mode, and is widely applied to the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, decoration and the like.

At present, when the rivet nut is riveted or used for a long time, the rivet nut is easy to loose, and the fastening effect is affected.

Disclosure of Invention

The embodiment of the utility model aims to provide a blind rivet nut, which solves the technical problem that the blind rivet nut is easy to loosen in the riveting process or in the long-term use process of the blind rivet nut in the prior art.

An embodiment of a first aspect of the present utility model provides a blind rivet nut comprising: the clamping ring and the sleeve body comprise a deformation section and a locking section, and two ends of the deformation section are respectively connected with the clamping ring and the locking section; the cross-sectional area of at least part of the deformation section is reduced from the compression ring towards the locking section, so that at least part of the deformation section is tapered, and anti-rotation teeth are arranged on the outer wall surface of the deformation section.

The rivet nut provided by the utility model has the beneficial effects that: compared with the prior art, the cross section area of the deformation section is reduced from the compression ring to the locking section, so that at least part of the deformation section is tapered, and the anti-rotation teeth are arranged on the outer wall surface of the deformation section, so that when the sleeve body is riveted, after the sleeve body is inserted into the installation hole of the riveted part in place, the tapered part of the deformation section is in interference fit with the installation hole of the riveted part, the contact area between the deformation section and the riveted part is increased, and the anti-rotation teeth are embedded into the riveted part from the inner wall surface of the installation hole, the anti-rotation performance of the rivet nut is improved, the rivet nut can bear larger torsion force, and the rivet nut is not easy to loose during riveting or in a long-term use process, and a better fastening effect can be achieved.

In one embodiment, the cross-sectional area of the whole of the deformation section gradually decreases from the press ring toward the locking section, so that the whole of the deformation section is tapered.

The cross-sectional area of the whole deformation section is reduced from the compression ring to the direction of the locking section, so that the whole deformation section is tapered, the rivet nut is riveted with the riveted parts of the mounting holes with different depths, and when the minimum cross-sectional area of the deformation section is smaller than or equal to the cross-sectional area of the mounting hole, the deformation section can form interference fit with the whole mounting hole, and the anti-rotation performance of the deformation section is improved.

In one embodiment, the thickness of the side wall of the tapered portion of the deformation section is constant from the pressure ring in the direction of the locking section.

The thickness of the side wall of the part with the tapered deformation section is kept unchanged from the compression ring to the locking section, so that the deformation section is easy to bend and deform, the preset axial force for bending and deforming the deformation section is reduced, resources are saved, and cost is reduced.

In one embodiment, the cross-sectional area of the anti-rotation tooth decreases gradually from the pressure ring in the direction of the locking segment.

The cross-sectional area of the anti-rotation teeth gradually decreases from the compression ring towards the locking section, so that the anti-rotation teeth are tapered along the axial direction of the sleeve body, the anti-rotation teeth are conveniently embedded into the riveted part, and meanwhile, the deformation section is easy to bend and deform.

In one embodiment, the cross section of the anti-rotation tooth is tapered away from the deformation section along the radial direction of the deformation section to form a tip.

Along the radial of deformation section, through making the transversal setting that is gradually towards the direction of keeping away from deformation section of preventing changeing to form the tip, insert the mounting hole by the riveting in-process of deformation section, puncture the inner wall face of mounting hole through the tip, make prevent changeing the tooth and imbed in by the riveting relatively easily.

In one embodiment, the number of the anti-rotation teeth is a plurality, the plurality of anti-rotation teeth are arranged at intervals along the circumferential direction of the deformation section, and each anti-rotation tooth extends along the axial direction of the deformation section.

Through setting up a plurality of anti-rotation teeth, a plurality of anti-rotation teeth set up along the circumference interval of deformation section, and extend for rectangular structure along the axial of deformation section, when drawing the riveting nut and being riveted the piece, a plurality of anti-rotation teeth all imbed in being riveted the piece, are favorable to promoting and draw the anti-rotation performance of riveting nut.

In one embodiment, the blind rivet nut further comprises a seal disposed on a side of the press ring facing the sleeve.

By arranging the sealing element on one side of the pressing ring facing the sleeve body, when the pressing ring is in contact with the mounting surface of the riveted part, the sealing element has a sealing effect on the pressing ring and the mounting surface of the riveted part.

In one embodiment, the pressing ring is provided with a groove, the groove is formed in the side surface of the pressing ring, which faces the sleeve body, and at least part of the sealing element is accommodated in the groove.

The groove is formed in the side part of the pressing ring, facing the sleeve body, of the sealing piece at least partially accommodated in the groove, and when the pressing ring is abutted against the mounting surface of the riveted piece, the sealing ring is mostly or completely accommodated in the groove after being compressed, so that the sealing ring does not protrude out of the groove at least partially or completely, and the influence on the riveting effect due to the fact that a large gap exists between the pressing ring and the mounting surface of the riveted piece is effectively avoided.

In one embodiment, the blind rivet nut further comprises a sealing member, wherein the sealing member is sleeved at a position of the deformation section adjacent to the compression ring.

The sealing element is sleeved at the position of the deformation section adjacent to the compression ring, so that the sealing element is effectively prevented from being separated before or during riveting, and meanwhile, the assembly is convenient.

In one embodiment, the compression ring is provided with a via hole, the deformation section is provided with a through hole communicated with the via hole, the locking section is provided with a threaded hole communicated with the through hole, and the cross-sectional area of the via hole and the cross-sectional area of the through hole are larger than the cross-sectional area of the threaded hole.

The cross section area of the through hole and the cross section area of the through hole are larger than the cross section area of the threaded hole, so that the hand riveter or the nut passes through the through hole and the through hole to be connected with the threaded hole in a matched mode.

In one embodiment, the minimum cross-sectional area of the deformation section is greater than or equal to the cross-sectional area of the locking section.

The minimum cross section area of the deformation section is larger than or equal to the cross section area of the locking section, so that the deformation section can bear larger torsion, and the anti-rotation capability of the deformation section is effectively improved.

In one embodiment, the locking section is provided with a transition hole, the transition hole is located between the through hole and the threaded hole, the cross-sectional area of the transition hole is reduced from the compression ring towards the locking section, and the locking section is inclined corresponding to the inner wall surface of the transition hole.

Through making the cross sectional area of transition hole reduce gradually from the clamping ring towards the direction of locking section, the locking section corresponds the internal face of transition hole and is the inclined plane, makes the junction of locking section and deformation section can bear great pulling force and shear stress, effectively avoids producing stress concentration in the junction of locking section and deformation section when the blind rivet nut receives external force.

In one embodiment, the end of the locking section away from the deformation section is a closed structure.

By setting the end of the locking section, which is far away from the deformation section, as a closed structure, the bolt can be effectively prevented from extending out of the end of the locking section, which is far away from the deformation section, and interfering with other parts.

In one embodiment, an end of the locking section away from the deformation section is in an open structure.

Through keeping away from the one end of deformation section with the locking section and establishing to open structure for the nut of different length all can insert in the screw hole, can adapt to the nut of different length, is favorable to improving the practicality of this rivet nut.

An embodiment of a second aspect of the present utility model provides a battery including: the rivet nut.

An embodiment of a third aspect of the present utility model provides a powered device, including the battery described above, where the battery is configured to provide electrical energy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, 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 perspective view of a blind rivet nut according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the rivet nut of FIG. 1 at A;

fig. 3 is a schematic view of a vertical cross-section of a blind rivet nut according to an embodiment of the present utility model;

fig. 4 to 6 are schematic views illustrating a riveting process of a blind rivet nut according to an embodiment of the present utility model;

fig. 7 is a schematic diagram of a third perspective structure of a blind rivet nut according to an embodiment of the present utility model;

fig. 8 is a schematic diagram of a vertical cross-section of a blind rivet nut according to an embodiment of the present utility model.

The main reference numerals illustrate:

100. pulling and riveting a nut; 200. a riveted member; 201. a mounting surface; 202. a mounting surface; 203. a mounting hole; 10. a compression ring; 11. a via hole; 12. a groove; 13. a smooth plane; 20. a sleeve body; 21. a deformation section; 210. a through hole; 211. a protruding portion; 22. a locking section; 220. a threaded hole; 221. a transition hole; 23. anti-rotation teeth; 230. a tip portion; 231. an inclined plane; 30. and a seal.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The blind rivet nut is a fastener which is fastened and connected with a riveted part in a riveting mode. The rivet nut is suitable for fastening plates and pipes, has firm riveting, high efficiency and convenient use, and is widely applied to the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, decoration and the like.

At present, when the rivet nut is riveted, if larger torsion is required to be generated to generate rivet deformation in a deformation area of the rivet nut, the condition that the rivet nut rotates easily occurs to influence the riveting effect, and when the rivet nut is used for a long time, the rivet nut is easy to loosen due to vibration, particularly in some places with larger vibration, so that the rivet nut rotates relatively to a riveted part or rotates along with a bolt, and the fastening effect of the rivet nut is lost. For example, in the field of electric automobiles, after a battery cell is accommodated in a case of a battery case, a cover of the battery case is generally coupled to the case by a rivet nut and a bolt. In the running process of the electric automobile, if the electric automobile encounters severe jolt, collision and other working conditions, the rivet nut on the battery box is easy to loosen, so that the stability of connection between the cover body and the box body of the battery box can be affected.

In some cases, the reticulate pattern knurling surface is arranged on the outer wall surface of the deformation part of the rivet nut, and the friction fit surface is formed on the outer wall surface of the rivet expansion protrusion through the reticulate pattern knurling surface so as to be in rotation-preventing fit with the riveted part, but the rotation-preventing performance is poor, and a good rotation-preventing effect cannot be achieved.

Therefore, in order to solve the above-mentioned problem, through intensive research, a rivet nut is designed, including clamping ring and cover body, the cover body includes deformation section and locking section, deformation section's both ends are connected with clamping ring and locking section respectively, through reducing deformation section's at least partial cross-sectional area from the clamping ring towards locking section's direction, so that deformation section's at least part is the tapering form, and through setting up anti-rotation tooth on deformation section's outer wall, thereby during the riveting, insert by the mounting hole of riveting in place at the cover body, deformation section is the tapering form the part and by the mounting hole interference fit of riveting, be favorable to increasing deformation section and by the area of contact of riveting, and anti-rotation tooth is embedded into by the riveting from the internal face of mounting hole, be favorable to promoting the anti-rotation ability of rivet nut, so that rivet nut can bear great torsion, thereby make rivet nut when riveting or in long-term use, the difficult for appearing rivet nut is rotated or follows the bolt rotation's condition relatively, can reach better fastening effect.

The blind rivet nut can be used for connecting two rigid plates, and is particularly suitable for connecting rigid thin plates. For example, the blind rivet nut may be applied to, but is not limited to, connection of a cover plate and a side plate of a battery box, connection of a bottom plate and a side plate, connection of a liquid cooling plate and a bottom plate, and the like. The battery box is a box body for installing a battery cell or a battery module, and the battery box is assembled with the battery cell or the battery module carried in the battery box, necessary functional parts, circuits and the like to form a battery.

The battery disclosed by the embodiment of the utility model can be used for electric equipment using the battery as a power supply or various energy storage systems using the battery as an energy storage element. The powered device may be, but is not limited to, a cell phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric automobile, a ship, a spacecraft, and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

Referring to fig. 1 and 3, a blind rivet nut 100 according to an embodiment of the utility model will be described. The rivet nut 100 comprises a compression ring 10 and a sleeve body 20, wherein the sleeve body 20 comprises a deformation section 21 and a locking section 22, and two ends of the deformation section 21 are respectively connected with the compression ring 10 and the locking section 22; at least a part of the cross-sectional area of the deformation section 21 decreases from the press ring 10 toward the locking section 22 so that at least a part of the deformation section 21 is tapered, and anti-rotation teeth 23 are provided on the outer wall surface of the deformation section 21.

For easy understanding, referring to fig. 4, the member to be riveted with the blind rivet nut 100 is set as a member to be riveted 200, the member to be riveted 200 has a mounting surface 201 and an assembling surface 202 which are disposed opposite to each other, a mounting hole 203 is provided in the member to be riveted, the mounting hole 203 penetrates through the mounting surface 201 and the assembling surface 202, and the mounting hole 203 is provided for inserting the blind rivet nut 100. Specifically, at the time of caulking, the sleeve body 20 is inserted into the mounting hole 203 from the side of the mounting face 201 and extends to the side of the mounting face 202. Wherein the shape of the mounting hole 203 may be set according to the cross section of the deformed section 21.

Alternatively, the riveted member 200 may be, but is not limited to, a plate material, a tube material. Specifically, when the riveted member 200 is a plate material, the riveted member 200 may be a metal plate material such as an aluminum plate or a plastic plate material such as a hard plastic plate or the like.

The pressing ring 10 is a member for limiting one end of the blind rivet nut 100 to the mounting surface 201 of the workpiece 200, as shown in fig. 5 and 6. The press ring 10 is provided with a via hole 11, and the via hole 11 is used for allowing a hand riveter or a nut to pass through and be connected with the sleeve body 20 in a matched manner. Specifically, the cross-sectional area of the pressure ring 10 is larger than the cross-sectional area of the sleeve body 20, that is, the edge of the pressure ring 10 protrudes out of the sleeve body 20 in the radial direction of the sleeve body 20, so that after the sleeve body 20 is inserted into the mounting hole 203 from the side where the mounting surface 201 is located, the pressure ring 10 abuts against the mounting surface 201.

In some embodiments, the cross-section of the pressure ring 10 may be circular, polygonal, or other heteroannular, and the polygonal ring may be triangular, square, five-sided, six-sided, or the like.

In this embodiment, the cross section of the pressing ring 10 and the cross section of the sleeve body 20 are both circular, the outer diameter of the pressing ring 10 is obviously larger than the outer diameter of the sleeve body 20, and the inner diameter of the pressing ring 10 is slightly larger than or equal to the inner diameter of the sleeve body 20, so that the cross section area of the pressing ring 10 is larger than the cross section area of the sleeve body 20.

The cross section of the pressure ring 10 is a cross section obtained by cutting the pressure ring 10 in a plane perpendicular to the axial direction of the sleeve 20, and is annular. The cross-sectional area of the press ring 10 refers to the area of the cross-section of the press ring 10. The cross section of the sleeve 20 refers to a cross section obtained by cutting the sleeve 20 in a plane perpendicular to the axial direction of the sleeve 20, and is annular. The cross-sectional area of the sleeve 20 refers to the area of the cross-section of the sleeve 20.

In this embodiment, the pressure ring 10 and the sleeve body 20 are of an integral structure, that is, the pressure ring 10 and the sleeve body 20 are integrally formed, the process is simple, the manufacture is easy, and the connection stress at the connection position of the pressure ring 10 and the sleeve body 20 can be reduced. Of course, in other embodiments, the sleeve 20 and the pressing ring 10 may be formed separately, and then the sleeve 20 and the pressing ring 10 may be connected by welding or the like.

In some embodiments, the material of the compression ring 10 and the sleeve 20 may be stainless steel, aluminum, copper, or the like.

The sleeve 20 is a member for connecting a caulking nut 100 to a caulking target member and a bolt.

The deformation section 21 is a member capable of bending deformation of the finger cuff body 20 when a predetermined axial force is applied. Specifically, the deformation section 21 is capable of undergoing bending deformation when subjected to a preset axial force to form the projection 211, the projection 211 abutting against the fitting surface 202. It will be appreciated that the engagement of the projection 211 with the press ring 10 clamps the workpiece 200 to be riveted, as shown in fig. 6.

In some embodiments, the deformation section 21 is provided with a through hole 210, as shown in fig. 3, the through hole 210 being used for a rivet gun or a bolt to pass through for mating connection with the locking section 22. The cross section of the deformation section 21 may be a circular ring, a polygonal ring or other different rings, and the polygonal ring may be a triangular ring, a square ring, a five-sided ring, a six-sided ring or the like.

The cross section of the deformed portion 21 is a cross section obtained by cutting the deformed portion 21 in a plane perpendicular to the axial direction of the sleeve 20, and is annular. The cross-sectional area of the deformation section 21 refers to the area of the cross-section of the deformation section 21.

The outer wall surface of the deformed section 21 means an outer peripheral surface of the deformed section 21 facing away from the through hole 210.

The anti-rotation teeth 23 are members that can be fitted into the caulking member 200 when the deformation section 21 is inserted into the mounting hole 203 of the caulking member 200, as shown in fig. 5 and 6. Specifically, the anti-rotation teeth 23 may be inserted into the rivet by piercing the inner wall surface of the mounting hole 203. Further, an anti-rotation groove communicating with the mounting hole 203 may be formed in the inner wall surface of the mounting hole 203, and the anti-rotation teeth 23 may be fitted into the anti-rotation groove when the deformed portion 21 is inserted into the mounting hole 203 of the caulking member 200.

Locking section 22 refers to the component of blind rivet nut 100 that mates with a blind rivet gun or bolt. Specifically, the locking section 22 is provided with a threaded hole 220, the threaded hole 220 is communicated with the through hole 210, and as shown in fig. 3, after the gun head of the hand riveter or the threaded section of the bolt passes through the through hole 11 and the through hole 210, the hand riveter is matched with the threaded hole 220 to form threaded connection. The cross section of the locking section 22 may be a circular ring, a polygonal ring or other different rings, and the polygonal ring may be a triangular ring, a square ring, a five-sided ring or a six-sided ring, etc.

Compared with the prior art, the cross-sectional area of at least part of the deformation section 21 is reduced from the compression ring 10 towards the locking section 22, so that at least part of the deformation section 21 is tapered, and the anti-rotation teeth 23 are arranged on the outer wall surface of the deformation section 21, so that when the sleeve body 20 is inserted into the mounting hole 203 of the riveted member 200 for riveting, the tapered part of the deformation section 21 is in interference fit with the mounting hole 203 of the riveted member 200, the contact area between the deformation section 21 and the riveted member 200 is increased, the anti-rotation teeth 23 are embedded into the riveted member 200 from the inner wall surface of the mounting hole 203, the anti-rotation performance of the blind rivet nut 100 is improved, and the blind rivet nut 100 can bear larger torsion force, so that the blind rivet nut 100 is not easy to loose during riveting or long-term use, namely, the blind rivet nut 100 is not easy to rotate relative to the riveted member 200 or rotate along with a bolt, and a better fastening effect can be achieved.

In one embodiment of the present utility model, referring to fig. 3, the cross-sectional area of the via 11 is greater than or equal to the cross-sectional area of the through hole 210, and the cross-sectional area of the through hole 210 is greater than the cross-sectional area of the threaded hole 220.

The cross section of the via 11 is a cross section obtained by cutting the via 11 in a plane perpendicular to the axial direction of the sleeve 20, and the cross sectional area of the via 11 is an area of the cross section of the via 11. The cross section of the through-hole 210 refers to a cross section obtained by cutting the through-hole 210 in a plane perpendicular to the axial direction of the sleeve 20, and the cross sectional area of the through-hole 210 refers to an area of the cross section of the through-hole 210. The cross section of the screw hole 220 refers to a cross section obtained by cutting the screw hole 220 in a plane perpendicular to the axial direction of the sleeve 20, and the cross sectional area of the screw hole 220 refers to an area of the cross section of the screw hole 220.

In the above technical solution, the cross-sectional area of the via hole 11 and the cross-sectional area of the through hole 210 are larger than the cross-sectional area of the threaded hole 220, so that the hand riveter or the nut passes through the via hole 11 and the through hole 210 to be connected with the threaded hole 220 in a matching manner.

Optionally, the cross section of deformation section 21 is polygonal ring shape, and mounting hole 203 is polygonal hole, through setting the cross section of deformation section 21 to polygonal ring shape to for the cooperation with polygonal mounting hole 203, can play better anti-rotation effect, be favorable to promoting the anti-rotation performance of rivet nut 100.

In one embodiment of the present utility model, with continued reference to fig. 3, the deformation section 21 has a maximum cross-sectional area that is smaller than the cross-sectional area of the compression ring 10.

The maximum cross-sectional area of the deformed segment 21 is the maximum cross-sectional area of the tapered portion of the deformed segment 21.

In the above-described configuration, the maximum cross-sectional area of the deformed segment 21 is smaller than the cross-sectional area of the press ring 10, so that the press ring 10 can be retained on the mounting surface 201 of the caulking member 200 after the deformed segment 21 is inserted into the mounting hole 203 of the caulking member 200.

In one embodiment of the utility model, the minimum cross-sectional area of deformation section 21 is greater than or equal to the cross-sectional area of locking section 22.

The minimum cross-sectional area of the deformation section 21 refers to the minimum cross-sectional area of the tapered portion of the deformation section 21.

By making the minimum cross-sectional area of the deformed segment 21 greater than or equal to the cross-sectional area of the locking segment 22, the deformed segment 21 can bear a greater torsion force, and the anti-rotation capability of the deformed segment 21 is effectively improved.

In an embodiment of the present utility model, referring to fig. 1 and 3, the cross-sectional area of the whole deformation section 21 gradually decreases from the compression ring 10 toward the locking section 22, so that the whole deformation section 21 is tapered, and the minimum cross-sectional area of the deformation section 21 is smaller than or equal to the cross-sectional area of the mounting hole 203. Specifically, the cross section of the deformation section 21 is circular, and the whole deformation section 21 is frustum-shaped.

According to the technical scheme, the whole cross-sectional area of the deformation section 21 is gradually reduced from the compression ring 10 towards the locking section 22, so that the whole deformation section 21 is tapered, when the rivet nut 100 is riveted with the riveted piece 200 of the mounting holes 203 with different depths, and the minimum cross-sectional area of the deformation section 21 is smaller than or equal to the cross-sectional area of the mounting hole 203, the deformation section 21 can form interference fit with the whole mounting hole 203, and the anti-rotation performance of the deformation section 21 is improved.

Of course, in another embodiment, the cross-sectional area of the portion of the deformation section 21 in the axial direction thereof may gradually decrease from the press ring 10 toward the locking section 22 so that the portion of the deformation section 21 is tapered. Specifically, the cross section of the deformation section 21 is circular, so that when the cross sectional area of the part of the deformation section 21 in the axial direction thereof gradually decreases from the press ring 10 toward the lock section 22, the part corresponding to the deformation section 21 takes a frustum shape.

The tapering of the deformed section 21 may be that the deformed section 21 is tapered near the pressure ring 10, or that the middle of the deformed section 21 is tapered. Optionally, the tapered portion of the deformation section 21 is plural, that is, the tapered portions of the deformation section 21 are disposed at intervals along the axial direction of the sleeve 20.

In one embodiment of the utility model, the sidewall thickness of the tapered portion of the deformation section 21 tapers from the press ring 10 toward the locking section 22. Specifically, the cross-sectional area of the through hole 210 is kept constant from the press ring 10 toward the lock section 22, so that when the cross-sectional area of the portion of the deformed section 21 tapered gradually decreases from the press ring 10 toward the lock section 22, the sidewall thickness of the portion of the deformed section 21 tapered also gradually decreases from the press ring 10 toward the lock section 22.

In another embodiment of the utility model, the sidewall thickness of the tapered portion of the deformation section 21 remains unchanged from the press ring 10 toward the locking section 22. Specifically, since the cross-sectional area of the tapered portion of the deformation section 21 gradually decreases from the press ring 10 toward the locking section 22, the cross-sectional area of the portion of the through hole 210 corresponding to the tapered portion of the deformation section 21 also gradually decreases from the press ring 10 toward the locking section 22, so that the thickness of the sidewall of the tapered portion of the deformation section 21 remains unchanged.

The sidewall thickness of the deformed segment 21 refers to the radial distance between the inner wall surface of the deformed segment 21 and the outer wall surface of the deformed segment 21. The outer wall surface of the deformed section 21 means the outer peripheral surface of the deformed section 21 facing away from the through hole 210, and the inner wall surface of the deformed section 21 means the inner peripheral surface of the deformed section 21 facing toward the through hole 210.

According to the technical scheme, the thickness of the side wall of the part of the deformation section 21 in the tapered shape is kept unchanged from the compression ring 10 towards the locking section 22, so that the deformation section 21 is easy to bend and deform, the preset axial force for bending and deforming the deformation section 21 is reduced, resources are saved, and the cost is reduced.

In this embodiment, the anti-rotation teeth 23 and the deformation section 21 are in an integral structure, that is, the anti-rotation teeth 23 and the deformation section 21 are integrally formed, the process is simple, the manufacture is easy, and the connection stability of the anti-rotation teeth 23 and the deformation section 21 can be improved. Of course, in other embodiments, the anti-rotation teeth 23 may be fixed to the outer wall surface of the deformation section 21 by welding or the like.

In one embodiment of the present utility model, referring to fig. 1, the number of anti-rotation teeth 23 is plural, the plurality of anti-rotation teeth 23 are spaced apart along the circumference of the deformation section 21, and each anti-rotation tooth extends in a strip structure along the axial direction of the deformation section 21. Specifically, the plurality of anti-rotation teeth 23 are disposed at equal intervals along the circumferential direction of the deformation section 21, that is, the distances between adjacent anti-rotation teeth 23 are equal in the circumferential direction of the deformation section 21.

According to the technical scheme, the plurality of anti-rotation teeth 23 are arranged at intervals along the circumferential direction of the deformation section 21, the plurality of anti-rotation teeth 23 extend into a strip structure along the axial direction of the deformation section 21, when the blind rivet nut 100 is riveted with the riveted part 200, the plurality of anti-rotation teeth 23 are embedded into the riveted part 200, and the anti-rotation teeth 23 extending along the axial direction are more beneficial to increasing the rotation resistance and improving the anti-rotation performance of the blind rivet nut 100.

In one embodiment of the present utility model, referring to fig. 3, the cross-sectional area of the anti-rotation teeth 23 gradually decreases from the compression ring 10 toward the locking section 22, so that the anti-rotation teeth 23 taper along the axial direction of the sleeve body 20.

The cross section of the anti-rotation teeth 23 is a cross section obtained by cutting the anti-rotation teeth 23 in a plane perpendicular to the axial direction of the sleeve body 20, and the cross section of the anti-rotation teeth 23 is an area of the cross section of the anti-rotation teeth 23.

According to the technical scheme, the cross-sectional area of the anti-rotation teeth 23 is gradually reduced from the compression ring 10 towards the locking section 22, so that the anti-rotation teeth 23 are tapered along the axial direction of the sleeve body 20, the anti-rotation teeth 23 are conveniently embedded into the riveted piece 200, and meanwhile, the deformation section 21 can be easily bent and deformed.

Of course, in other embodiments, the cross-sectional area of the anti-rotation teeth 23 may be kept unchanged from the compression ring 10 toward the locking section 22, so as to effectively increase the contact area between the anti-rotation teeth 23 and the riveted member 200, and improve the anti-rotation performance.

In an embodiment of the present utility model, referring to fig. 1 and 2, the cross section of the anti-rotation tooth 23 tapers away from the deformation section 21 along the radial direction of the deformation section 21 to form a tip 230, and the tip 230 is used to pierce into the riveted part 200. It will be appreciated that the radial width of the anti-rotation teeth 23 gradually decreases in a direction away from the deformation section 21. Specifically, the anti-rotation tooth 23 includes two inclined surfaces 231, the two inclined surfaces 231 are disposed opposite to each other, and a distance between the two inclined surfaces 231 is gradually reduced in a direction away from the deformation section 21 in a radial direction of the deformation section 21 to form the tip 230. Further, the anti-rotation teeth 23 may be, but are not limited to, triangular in cross-section.

In the above technical solution, along the radial direction of the deformation section 21, the cross section of the anti-rotation tooth 23 is tapered in the direction away from the deformation section 21 to form the tip 230, and during the process of inserting the deformation section 21 into the mounting hole 203 of the riveted member 200, the inner wall surface of the mounting hole 203 is pierced by the tip 230, so that the anti-rotation tooth 23 is easily embedded into the riveted member 200.

In some embodiments, referring to fig. 3, the locking section 22 is provided with a transition hole 221, the transition hole 221 is located between the through hole 210 and the threaded hole 220 and is communicated with the through hole 210 and the threaded hole 220, the cross-sectional area of the transition hole 221 gradually decreases from the compression ring 10 towards the locking section 22, and the inner wall surface of the locking section 22 corresponding to the transition hole 221 is an inclined surface, so that the connection part between the locking section 22 and the deformation section 21 can bear larger tensile force and shearing stress, and the stress concentration at the connection part between the locking section 22 and the deformation section 21 when the blind rivet nut 100 is subjected to external force is effectively avoided.

In one embodiment of the present utility model, referring to fig. 3, an end of the locking section 22 away from the deformation section 21 has an open structure. Specifically, threaded bore 220 extends through an end of locking section 22 remote from deformation section 21.

According to the technical scheme, the locking section 22 is arranged at one end far away from the deformation section 21 to be of an open structure, so that nuts with different lengths can be inserted into the threaded holes 220, nuts with different lengths can be adapted, and the practicality of the rivet nut 100 can be improved.

In another embodiment of the present utility model, referring to fig. 8, an end of the locking section 22 away from the deformation section 21 is a closed structure. Specifically, the threaded bore 220 is a blind bore, i.e. the threaded bore 220 does not extend through the end of the locking section 22 remote from the deformation section 21.

According to the technical scheme, the end, away from the deformation section 21, of the locking section 22 is of the closed structure, so that the bolt can be effectively prevented from extending out of the end, away from the deformation section 21, of the locking section 22 to interfere with other parts.

In one embodiment of the present utility model, a chamfer is provided at an end of the locking section 22 away from the deformation section 21, and the chamfer is provided to facilitate insertion of the blind rivet nut 100 into the mounting hole 203 of the riveted member 200, and positioning and mounting of the blind rivet nut 100.

In one embodiment of the present utility model, referring to fig. 7, the blind rivet nut 100 further includes a sealing member 30, where the sealing member 30 is disposed on a side of the pressing ring 10 facing the sleeve body 20. At the time of caulking, the seal 30 is provided between the press ring 10 and the mounting surface 201 of the caulking subject 200. Specifically, the seal 30 is annular and disposed around the via 11. When the pressing ring 10 abuts against the mounting surface 201 of the swage 200, the seal 30 is also provided around the mounting hole 203 of the swage 200.

Optionally, the seal 30 is a gasket or sealant, or the like. Specifically, when the seal member 30 is a seal ring, the seal member 30 is made of a material such as silicone rubber or rubber.

In the above-described embodiment, the seal 30 is provided on the side of the press ring 10 facing the sleeve 20, so that the seal 30 has a sealing effect between the press ring 10 and the mounting surface 201 of the swaged member 200 when the press ring 10 is in contact with the mounting surface 201 of the swaged member 200.

In an embodiment of the present utility model, referring to fig. 8, on the basis that the blind rivet nut 100 further includes a sealing member 30, a groove 12 is provided on the pressing ring 10, the groove 12 is disposed on a side surface of the pressing ring 10 facing the sleeve body 20, and at least a portion of the sealing member 30 is accommodated in the groove 12.

The groove 12 is annular and is disposed around the hole 11. Specifically, the groove 12 may be annular, square annular, or the like.

In the above technical solution, the groove 12 is formed on the side portion of the press ring 10 facing the sleeve body 20, so that at least part of the sealing member 30 is accommodated in the groove 12, and when the press ring 10 is abutted against the mounting surface 201 of the riveted member 200, the sealing ring is mostly or completely accommodated in the groove 12 after being compressed, so that the sealing ring does not protrude out of the groove 12 at all or at least partially, and the problem that a large gap exists between the press ring 10 and the mounting surface 201 of the riveted member 200 to affect the riveting effect is effectively avoided when the sealing member 30 is arranged between the press ring 10 and the riveted member 200.

In addition, if the sealing member 30 is a sealant, when the liquid sealant is injected into the groove 12, the liquid sealant can be uniformly filled in the groove 12 due to the self-flowability, so that the dried sealant can be more uniformly distributed on the pressing ring 10, and when the pressing ring 10 is abutted against the mounting surface 201 of the riveted member 200, the part of the sealant protruding from the groove 12 can be more uniformly extruded between the pressing ring 10 and the mounting surface 201 of the riveted member 200, that is, the part of the sealant protruding from the groove 12 can be more uniformly unfolded, so that the thickness of the part of the sealant protruding from the groove 12 is more uniform, the sealing effect is better, the consistency of the distance between the pressing ring 10 and the mounting surface 201 of the riveted member 200 is better, and the riveting effect is improved. If the sealing element 30 is a sealing ring, the groove 12 also has a limiting function on the sealing element 30, so that the sealing element 30 is effectively prevented from moving relative to the compression ring 10 before or during riveting.

In some embodiments, the seal 30 is sleeved on the deformation section 21 adjacent to the compression ring 10. Specifically, when the sealing member 30 is a sealing ring, the sealing member 30 may be further sleeved on the deformation section 21, and during the process of inserting the deformation section 21 into the mounting hole 203 of the riveted member 200, the sealing member 30 is pushed by the portion of the mounting surface 201 located at the periphery of the mounting hole 203 toward the direction of the pressing ring 10, and is finally pressed between the pressing ring 10 and the mounting surface 201. By sleeving the sealing element 30 on the deformation section 21 adjacent to the compression ring 10, the sealing element 30 is effectively prevented from being separated before or during riveting, and meanwhile, the assembly is convenient.

When the groove 12 is provided in the press ring 10, the sleeve 20 is inserted into the mounting hole 203 of the swage 200, and then the press ring 10 abuts against the mounting surface 201 of the swage 200, and the swage 200 pushes the seal 30 into the groove 12.

In one embodiment of the present utility model, referring to fig. 7 and 8, the pressing ring 10 has a smooth surface 13 facing the sleeve 20. At the time of caulking, the smooth flat surface 13 is bonded to the mounting surface 201 of the caulking subject 200. The smooth plane 13 effectively improves the fitting degree of the compression ring 10 and the mounting surface 201 of the riveted part 200, and when the sealing element 30 is sealant, the sealant is uniformly extruded under the cooperation of the smooth plane 13 and the mounting surface 201 of the riveted part 200, so that the sealant is uniformly distributed between the compression ring 10 and the mounting surface 201 of the riveted part 200, the distance consistency between the compression ring 10 and the mounting surface 201 of the riveted part 200 is better, and further the riveting effect is further improved.

In an embodiment of the present utility model, anti-slip teeth, anti-slip patterns or anti-slip protruding points may be further disposed on the side surface of the compression ring 10 facing the sleeve body 20, so as to effectively increase the contact area between the compression ring 10 and the mounting surface 201, i.e. increase the friction force between the compression ring 10 and the mounting surface 201, and facilitate further improving the anti-rotation performance of the blind rivet nut 100. That is, when the compression ring 10 has the smooth plane 13 facing the sleeve body 20, the smooth plane 13 is provided with anti-slip teeth, anti-slip patterns, or anti-slip bumps.

When the blind rivet nut 100 according to the embodiment of the utility model is riveted, the method mainly comprises the following steps:

step S10: the sleeve 20 is inserted into the mounting hole 203 of the caulking member 200 from the side of the mounting surface 201 of the caulking member 200, and after the sleeve 20 is inserted in place, the pressing ring 10 abuts against the mounting surface 201, and the locking section 22 and the partial deformation section 21 extend to the side of the mounting surface 202 of the caulking member 200, as shown in fig. 4 and 5.

Step S20: the gun head of the hand riveter is inserted into the threaded hole 220 through the hole 11 and the through hole 210 and is in threaded fit with the threaded hole 220, and the gun head is controlled to rotate, namely, the gun head is screwed on the locking section 22 to axially pull the deformation section 21, so that the deformation section 21 is axially extruded to generate horizontal deformation, a protruding part 211 is formed, and the protruding part 211 and the compression ring 10 are matched and clamped on the riveted piece 200, as shown in fig. 6.

Step S30: the part to be fixed is then placed on the mounting face 201 of the riveted part 200.

Step S40: the threaded section of the bolt sequentially passes through the to-be-fixed piece, the mounting hole 203, the through hole 11 and the through hole 210 from one side of the to-be-fixed piece, which is away from the riveted piece 200, and then is matched with the threaded hole 220 to form threaded connection, so that the to-be-fixed piece and the riveted piece 200 are fixed together.

The embodiment of the utility model also provides a battery, which comprises a battery box adopting the rivet nut of any embodiment.

The embodiment of the utility model also provides electric equipment, which comprises the battery, wherein the battery is used for providing electric energy.

The rivet nut, the battery and the electric equipment have at least the following beneficial effects:

through reducing the cross-sectional area of the deformation section 21 from the compression ring 10 towards the locking section 22, so that at least part of the deformation section 21 is tapered, and through arranging the anti-rotation teeth 23 on the outer wall surface of the deformation section 21, when the sleeve body 20 is riveted, after the sleeve body 20 is inserted into the mounting hole 203 of the riveted part 200 in place, the tapered part of the deformation section 21 is in interference fit with the mounting hole 203 of the riveted part 200, thereby being beneficial to increasing the contact area of the deformation section 21 and the riveted part 200, and the anti-rotation teeth 23 are embedded into the riveted part 200 from the inner wall surface of the mounting hole 203, being beneficial to improving the anti-rotation performance of the blind rivet nut 100, so that the blind rivet nut 100 can bear larger torsion, and the blind rivet nut 100 is not easy to loose during riveting or in long-term use, and can achieve better fastening effect.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (16)

1. A blind rivet nut (100), characterized by comprising: the clamping ring (10) and the sleeve body (20), wherein the sleeve body (20) comprises a deformation section (21) and a locking section (22), and two ends of the deformation section (21) are respectively connected with the clamping ring (10) and the locking section (22); at least part of the cross-sectional area of the deformation section (21) is reduced from the compression ring (10) towards the locking section (22), so that at least part of the deformation section (21) is tapered, and anti-rotation teeth (23) are arranged on the outer wall surface of the deformation section (21).

2. The blind rivet nut (100) as set forth in claim 1, characterized in that: the cross-sectional area of the whole deformation section (21) decreases from the compression ring (10) towards the locking section (22) so that the whole deformation section (21) is tapered.

3. The blind rivet nut (100) as set forth in claim 1, characterized in that: the thickness of the side wall of the tapered part of the deformation section (21) is kept unchanged from the compression ring (10) towards the locking section (22).

4. The blind rivet nut (100) as set forth in claim 1, characterized in that: the cross-sectional area of the anti-rotation teeth (23) decreases from the pressure ring (10) in the direction of the locking section (22).

5. The blind rivet nut (100) as set forth in claim 1, characterized in that: along the radial direction of the deformation section (21), the cross section of the anti-rotation tooth (23) is gradually reduced towards the direction away from the deformation section (21) so as to form a tip part (230).

6. The blind rivet nut (100) according to any one of claims 1-5, characterized in that: the number of the anti-rotation teeth (23) is multiple, the anti-rotation teeth (23) are arranged at intervals along the circumferential direction of the deformation section (21), and each anti-rotation tooth (23) extends along the axial direction of the deformation section (21).

7. The blind rivet nut (100) according to any one of claims 1-5, characterized in that: the rivet nut (100) further comprises a sealing piece (30), and the sealing piece (30) is arranged on one side, facing the sleeve body (20), of the compression ring (10).

8. The blind rivet nut (100) as set forth in claim 7, characterized in that: the compression ring (10) is provided with a groove (12), the groove (12) is arranged on the side surface of the compression ring (10) facing the sleeve body (20), and at least part of the sealing piece (30) is accommodated in the groove (12).

9. The blind rivet nut (100) according to any one of claims 1-5, characterized in that: the rivet nut (100) further comprises a sealing piece (30), and the sealing piece (30) is sleeved at the position, adjacent to the compression ring (10), of the deformation section (21).

10. The blind rivet nut (100) according to any one of claims 1-5, characterized in that: the compression ring (10) is provided with a through hole (11), the deformation section (21) is provided with a through hole (210) communicated with the through hole (11), the locking section (22) is provided with a threaded hole (220) communicated with the through hole (210), the cross section area of the through hole (11) is larger than or equal to the cross section area of the through hole (210), and the cross section area of the through hole (210) is larger than the cross section area of the threaded hole (220).

11. The blind rivet nut (100) according to any one of claims 1-5, characterized in that: the minimum cross-sectional area of the deformation section (21) is greater than or equal to the cross-sectional area of the locking section (22).

12. The blind rivet nut (100) as set forth in claim 10, characterized in that: the locking section (22) is provided with a transition hole (221), the transition hole (221) is located between the through hole (210) and the threaded hole (220), the cross-sectional area of the transition hole (221) is reduced from the compression ring (10) towards the locking section (22), and the inner wall surface of the locking section (22) corresponding to the transition hole (221) is an inclined surface.

13. The blind rivet nut (100) according to any one of claims 1-5, characterized in that: one end of the locking section (22) far away from the deformation section (21) is of a closed structure.

14. The blind rivet nut (100) according to any one of claims 1-5, characterized in that: one end of the locking section (22) far away from the deformation section (21) is of an open structure.

15. A battery comprising a battery compartment employing a blind rivet nut (100) as defined in any one of claims 1-14.

16. A powered device comprising the battery of claim 15, the battery configured to provide electrical energy.