Pressing rivet stud and pressing rivet stud assembly

Abstract

The utility model relates to a pressing rivet stud and a pressing rivet stud assembly. The pressing rivet stud comprises a riveting nut, an inner hole of the stud body is provided with threads, the stud body is connected with the riveting nut, and a step groove is formed in the connecting position of the stud body and the riveting nut; one end, close to the riveting nut, of the stud body is a first diameter section; one end, far away from the riveting nut, of the stud body is a second diameter section; wherein the outer diameter of the first diameter section is larger than that of the second diameter section, and the first diameter section and the second diameter section form a supporting surface; the outer wall of the stud body is a supporting surface formed by the diameter difference of the first diameter section and the second diameter section, and the supporting surface is matched with the locking piece so that the circuit board can be installed and positioned, and deformation of the circuit board is avoided.

Description

Technical Field

[0001] The utility model relates to the field of fasteners, in particular to a pressure riveted stud and a pressure riveted stud assembly. Background Art

[0002] When a circuit board needs to be installed in a housing, it is usually necessary to use pressure riveting studs and bolts to achieve the connection between the housing and the circuit board. There is also a heat dissipation gap between the circuit board and the housing.

[0003] Conventional self-clinching studs are connected to the housing by means of self-clinching. The other end of the self-clinching stud is used to support the circuit board. The bolt passes through the mounting hole on the circuit board and is connected to the self-clinching stud to fix the circuit board on the housing. However, the above operation method has the following disadvantages:

[0004] 1. When the bolt passes through the mounting hole of the circuit board, it not only scratches the circuit board, but also makes it difficult to locate the bolt, the mounting hole of the circuit board, and the threaded hole of the rivet stud.

[0005] 2. When the bolt needs to be tightened, the bolt head will contact the circuit board, causing the circuit board to deform;

[0006] In summary, how to achieve positioning of the circuit board during installation and to prevent the circuit board from being deformed or damaged during installation have become issues that researchers in this field need to solve urgently. Summary of the invention

[0007] The technical problems to be solved by the utility model are: how to realize the positioning of the circuit board during installation and to prevent the circuit board from being deformed or damaged during installation;

[0008] In order to solve the above problems, the utility model adopts the following technical solutions:

[0009] The utility model is a pressure riveted stud, comprising: a riveted nut; and a stud body with a threaded inner hole, which is connected to the riveted nut, and a step groove is formed at the connection between the stud body and the riveted nut; the end of the stud body close to the riveted nut is a first diameter section; the end of the stud body away from the riveted nut is a second diameter section; wherein the outer diameter of the first diameter section is greater than the outer diameter of the second diameter section, and the first diameter section and the second diameter section form a supporting surface;

[0010] The step groove formed between the riveting nut and the threaded stud body is a prior art, and the improvement of this solution is that the outer wall of the stud body is a supporting surface formed by the diameter difference between the first diameter section and the second diameter section.

[0011] In order to illustrate how the self-riveting stud is installed, the utility model adopts a fixing plate, the self-riveting stud passes through the first hole on the fixing plate, and the riveting nut is riveted to the fixing plate; a circuit board, the second diameter section passes through the second hole on the circuit board, and the circuit board is supported on the supporting surface; a locking piece, which is threadedly connected to the inner hole of the stud body, and its head is against the end face of the second diameter section; wherein the diameter of the second diameter section is equal to the inner diameter of the second hole, and the height of the second diameter section is equal to the thickness of the circuit board;

[0012] The fixing plate (shell) is riveted with the fixing nut of the self-clinching stud, and the stud body passes through the second hole (mounting hole) on the circuit board. At this time, the circuit board is supported on the supporting surface. Since the diameter of the second diameter section is equal to the inner diameter of the second hole, the second diameter section plays a positioning role with the circuit board. Since the height of the second diameter section is equal to the thickness of the circuit board, when the locking piece is screwed in, the head of the locking piece abuts against the end of the second diameter section to prevent the head of the locking piece from acting on the circuit board and preventing the circuit board from deformation. Such size restriction can prevent axial displacement of the circuit board, and the circuit board can be fixedly connected to the shell through the self-clinching stud.

[0013] In order to illustrate the specific structure of the locking member, the utility model adopts a screw or a bolt as the locking member.

[0014] In order to further increase the torsional resistance of the self-riveting stud after riveting, the utility model adopts a ring-shaped serration structure provided on one side of the riveting nut close to the step groove side.

[0015] In this solution, the serrated structure is pressed and riveted with the fixing plate, thereby increasing the torsional resistance of the riveted stud.

[0016] Beneficial effects of the utility model: The utility model is a self-clinching stud and a self-clinching stud assembly, the outer wall of the stud body is a supporting surface formed by the diameter difference of the first diameter section and the second diameter section, and the supporting surface cooperates with the locking piece to achieve the installation positioning of the circuit board and avoid deformation of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the structure of the pressure riveting stud;

[0019] Figure 2 is a cross-sectional view of a self-clinching stud assembly;

[0020] Figure 3 It is a structural schematic diagram of another type of pressure riveting stud;

[0021] In the figure: 1-riveting nut, 2-stud body, 3-step groove, 4-first diameter section, 5-second diameter section, 6-support surface, 7-fixing plate, 8-circuit board, 9-locking piece, 10-serrated structure. DETAILED DESCRIPTION

[0022] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0023] like Figure 1 As shown, the utility model is a pressure riveted stud, comprising: a riveted nut 1; and a stud body 2 with a threaded inner hole, which is connected to the riveted nut 1, and a step groove 3 is formed at the connection between the stud body 2 and the riveted nut 1; the end of the stud body 2 close to the riveted nut 1 is a first diameter section 4; the end of the stud body 2 away from the riveted nut 1 is a second diameter section 5; wherein the outer diameter of the first diameter section 4 is greater than the outer diameter of the second diameter section 5, and a support surface 6 is formed between the first diameter section 4 and the second diameter section 5;

[0024] The step groove formed between the riveting nut and the threaded stud body is a prior art, and the improvement of this solution is that the outer wall of the stud body is a supporting surface formed by the diameter difference between the first diameter section and the second diameter section.

[0025] like Figure 2 As shown, in order to illustrate how the self-riveting stud is installed, the utility model adopts a fixing plate 7, the self-riveting stud passes through the first hole on the fixing plate 1, and the riveting nut 1 is riveted to the fixing plate 7; a circuit board 8, the second diameter section 5 passes through the second hole on the circuit board 8, and the circuit board 8 is supported on the supporting surface 6; a locking member 9, which is threadedly connected to the inner hole of the stud body, and its head is against the end face of the second diameter section 5; wherein the diameter of the second diameter section 5 is equal to the inner diameter of the second hole, and the height of the second diameter section 5 is equal to the thickness of the circuit board 8;

[0026] The fixing plate (shell) is riveted with the fixing nut of the self-clinching stud, and the stud body passes through the second hole (mounting hole) on the circuit board. At this time, the circuit board is supported on the supporting surface. Since the diameter of the second diameter section is equal to the inner diameter of the second hole, the second diameter section plays a positioning role with the circuit board. Since the height of the second diameter section is equal to the thickness of the circuit board, when the locking piece is screwed in, the head of the locking piece abuts against the end of the second diameter section to prevent the head of the locking piece from acting on the circuit board and preventing the circuit board from deformation. Such size restriction can prevent axial displacement of the circuit board, and the circuit board can be fixedly connected to the shell through the self-clinching stud.

[0027] like Figure 2 As shown, in order to illustrate the specific structure of the locking member, the utility model adopts the locking member 9 to adopt a screw or a bolt.

[0028] like Figure 3 As shown, in order to further increase the torsional resistance of the riveted stud after riveting, the utility model adopts a ring-shaped serration structure 10 on one side of the riveted nut 1 close to the step groove 3.

[0029] In this solution, the serrated structure is pressed and riveted with the fixing plate, thereby increasing the torsional resistance of the riveted stud.

[0030] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A self-clinching stud, characterized in that: include: Riveting nuts; and a stud body with a threaded inner hole, which is connected to the riveting nut, and a step groove is formed at the connection between the stud body and the riveting nut; The end of the stud body close to the riveting nut is a first diameter section; The end of the stud body away from the riveting nut is a second diameter section; The outer diameter of the first diameter section is greater than the outer diameter of the second diameter section, and the first diameter section and the second diameter section form a supporting surface.

2. A self-clinching stud assembly, comprising the self-clinching stud according to claim 1, characterized in that: Also includes: A fixing plate, wherein the self-clinching stud passes through a first hole in the fixing plate, and the rivet nut is riveted to the fixing plate; A circuit board, wherein the second diameter section passes through a second hole on the circuit board and supports the circuit board on the support surface; A locking member, which is threadedly connected to the inner hole of the stud body, and whose head abuts against the end surface of the second diameter section; The diameter of the second diameter section is equal to the inner diameter of the second hole, and the height of the second diameter section is equal to the thickness of the circuit board.

3. A self-clinching stud assembly according to claim 2, characterized in that: The locking member is a screw or a bolt.

4. The self-clinching stud assembly according to claim 2, characterized in that: A surface of the riveting nut close to the step groove is provided with an annular sawtooth structure.

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