Pressing rivet assembly, rivet and electronic equipment

Abstract

The utility model discloses a pressing rivet assembly, a rivet and electronic equipment, and the pressing rivet assembly comprises a first connecting object and a second connecting object; the first connecting object comprises a plate body and an annular flange, and the annular flange is connected to one side of the plate body in the thickness direction; the second connecting object comprises a base body and a protrusion, the protrusion protrudes out of the surface of the base body, the protrusion is arranged on the plate body and the annular flange in a penetrating mode, and the protrusion and the annular flange are connected in a locked mode. The pressing rivet assembly, the rivet and the electronic equipment have the advantage that no drawing hole is formed in the appearance.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of mechanical parts installation, and in particular to a riveting assembly, a rivet, and an electronic device. Background Art

[0002] Consumer products include electronic products and non-electronic products. In some consumer products, there may be different situations where two plates are fixed, such as the shell wall of the consumer product shell is fixed to the bracket plate inside the shell. In the related two-plate fixing technology, one plate is provided with a salad hole, and the other plate is provided with a draw hole, and the draw hole is inserted into the salad hole for riveting.

[0003] However, when the above technology is applied to a scenario where the shell wall of the shell is fixed to a bracket plate inside the shell, a hole will be left on the outer surface of the shell, affecting the appearance of the consumer product. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a riveting assembly, a rivet, and an electronic device that can solve the problem of affecting the appearance of consumer products.

[0005] To achieve the above-mentioned purpose, one aspect of an embodiment of the present application provides a riveting assembly, including: a first connecting object, including a plate body and an annular flange, the annular flange is connected to one side of the plate body in the thickness direction; a second connecting object, including a base body and a protrusion, the protrusion protrudes from the surface of the base body, and the protrusion is penetrated through the plate body and the annular flange, and the protrusion is locked and connected to the annular flange.

[0006] The embodiment of the present application provides a riveting assembly, including a first connector and a second connector, wherein the first connector includes a plate body and an annular flange connected to one side of the plate body in the thickness direction, and the second connector includes a base body and a protrusion protruding from the base body, and the first connector and the second connector can be fixed by passing the protrusion of the second connector through the plate body and the annular flange, and then locking and connecting the protrusion with the annular flange. When the riveting assembly is used in the scene where the shell and its internal parts are fixed, the first connector can be an internal part, and the second connector can be a shell. The outer surface of the shell does not have a draw hole exposed, so the shell is made hole-free, which is conducive to beautifying the appearance of the product.

[0007] Optionally, the annular flange is limited by a limit block sleeved on the outside of the annular flange and is deformed and retracted by punching, and then locked and connected with the protrusion.

[0008] Through the above solution, the annular flange and the protrusion can form an upper and lower locking, which is more conducive to fixing the first

[0009] A linker and a second linker.

[0010] Optionally, there is at least one annular flange and at least one protrusion, and at least one protrusion is penetrated by at least one annular flange in a one-to-one correspondence; the limit block has at least one accommodating groove, and at least one accommodating groove accommodates at least one annular flange in a one-to-one correspondence.

[0011] The above solution can prevent the limiting protrusion from moving when the punch is punching.

[0012] Optionally, the annular flange is formed by punching holes in the plate body.

[0013] Through the above scheme, a through hole for the protrusion to pass through and an annular flange can be obtained in one step, which has the advantage of simplifying the processing steps.

[0014] Optionally, the protrusion is formed by riveting the plate body with rivets.

[0015] The above scheme has the advantage of convenient processing.

[0016] Optionally, the protrusion has a lateral limiting surface, the first part of the protrusion is located on the side of the lateral limiting surface away from the base, and the second part of the protrusion is between the lateral limiting surface and the surface of the base; the orthographic projection of the first part of the protrusion on the projection plane is located outside the orthographic projection of the second part of the protrusion on the projection plane; the lateral limiting surface abuts against the end of the annular flange away from the plate body.

[0017] Through the above solution, the lateral limiting surface can limit the upward movement of the annular flange below it, and the annular flange can also limit the downward movement of the protrusion, thereby achieving the effect of upper and lower locking.

[0018] Optionally, the side limiting surface is conical in shape.

[0019] Through the above solution, the annular flange deformed by the punch is facilitated to fill in the area below the lateral limiting surface, that is, fill in the area below the first portion of the protrusion.

[0020] To achieve the above-mentioned purpose, another aspect of an embodiment of the present application provides a rivet configured to be riveted with a base of a second connecting object of the above-mentioned riveting assembly to form a protrusion of the second connecting object.

[0021] Optionally, the rivet has a lateral limiting surface, the first part of the rivet is located on one side of the lateral limiting surface, and the second part of the rivet is configured to be located between the other side of the lateral limiting surface and the surface of the substrate; the orthographic projection of the first part of the rivet on the projection plane is located outside the orthographic projection of the second part of the rivet on the projection plane; the lateral limiting surface is configured to abut against the annular flange of the first connector of the riveting assembly.

[0022] Through the above solution, the lateral limiting surface can limit the upward movement of the annular flange below it, and the annular flange can also limit the downward movement of the protrusion, thereby achieving the effect of upper and lower locking.

[0023] To achieve the above-mentioned purpose, another aspect of an embodiment of the present application provides an electronic device, including a shell and a bracket, wherein the bracket is arranged in an inner cavity of the shell, and the bracket is the first connecting object of the riveting assembly as described above, and the shell is the second connecting object of the riveting assembly as described above.

[0024] The electronic device provided in the embodiment of the present application includes a housing and a bracket, wherein the bracket includes a plate body and an annular flange connected to one side of the plate body in the thickness direction, and the housing includes a base body and a protrusion protruding from the inner shell wall of the base body, and the housing and the bracket can be fixed by passing the protrusion of the housing through the plate body and the annular flange of the bracket, and then locking the protrusion with the annular flange. The outer surface of the housing has no exposed extraction holes, so the housing is made hole-free, which is conducive to beautifying the appearance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A cross-sectional view of a first plate and a second plate of the related art before assembly;

[0027] Figure 2 A cross-sectional view of a first plate and a second plate after being assembled in the related art;

[0028] Figure 3 An exploded view of a pressure riveting assembly provided in an embodiment of the present application;

[0029] Figure 4 A first cross-sectional view of a riveting assembly provided in an embodiment of the present application;

[0030] Figure 5 A second cross-sectional view of a pressure riveting assembly provided in an embodiment of the present application;

[0031] Figure 6 A third cross-sectional view of a pressure riveting assembly provided in an embodiment of the present application;

[0032] Figure 7 A schematic diagram of a rivet provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1000, riveting assembly;

[0035] 100, first connection object; 110, plate body; 111, first end surface; 112, second end surface; 120, annular flange;

[0036] 200, second connection object; 210, base; 211, third end surface; 212, fourth end surface; 220, protrusion; 221, first part; 222, second part; 223, lateral limiting surface;

[0037] 2000, punch; 2100, avoidance hole;

[0038] 3000, limit block; 3100, receiving slot;

[0039] 4000, rivet; 4100, head; 4200, tail; 4210, first part; 4220, second part; 4230, side limiting surface;

[0040] 5100, first plate; 5200, salad hole; 5300, second plate; 5400, punching hole. DETAILED DESCRIPTION

[0041] As described in the background art, when the relevant fixing method is applied to the fixing scenario of the shell wall of the shell and the bracket plate inside the shell, there will be a problem that the outer surface of the shell will leave a hole, which affects the appearance of the consumer product.

[0042] The specific reasons are as follows:

[0043] refer to Figure 1 The first plate 5100 may be provided with a salad hole 5200, and the second plate 5300 may be provided with a draw hole 5400. Figure 1 and Figure 2 When the first plate 5100 and the second plate 5300 are assembled, the draw hole 5400 of the second plate 5300 can be inserted into the corresponding hole 5200 of the first plate 5100, and the draw hole 5400 is deformed outward to be locked and connected with the hole 5200 of the first plate 5100, thereby fixing the first plate 5100 and the second plate 5300. Figure 2 It can be clearly seen that after the first plate 5100 and the second plate 5300 are assembled, the draw-out hole 5400 is not blocked, so that the draw-out hole 5400 is exposed. When one of the first plate 5100 and the second plate 5300 is a shell, and the other of the first plate 5100 and the second plate 5300 is a part in the shell, the draw-out hole 5400 will be left on the outer surface of the shell, affecting the appearance of the product.

[0044] In view of this, the inventor of the present application provides a fixing method in which the outer shell has no holes, and the connection between the outer shell and its internal parts is located inside the shell. Specifically, the outer shell may have a protrusion extending inward, and the internal parts of the outer shell may have a draw hole. The protrusion is inserted into the draw hole, and the draw hole is deformed by a riveting process, so that the protrusion is locked and connected with the draw hole, thereby fixing the outer shell and its internal parts. In this way, the outer surface of the outer shell has no holes, which will not affect the appearance of the product.

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiment is a section of the embodiments of the present application, not all the embodiments.

[0046] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0047] refer to Figure 3 The pressure riveting assembly 1000 provided in the embodiment of the present application includes a first connection object 100 and a second connection object 200. The first connection object 100 includes a plate body 110 and an annular flange 120. The plate body 110 may refer to an object with a large end face (a surface formed by a length and a width) and a small length perpendicular to the end face direction (thickness), such as a sheet metal part, a thin plate, a shell, etc., which may all fall within the scope of the plate body 110. The end face of the plate body 110 may be a plane or a curved surface.

[0048] refer to Figure 3 and Figure 4 , the plate body 110 may have a first end face 111 and a second end face 112 arranged opposite to each other in the thickness direction, and the annular flange 120 may be connected to the first end face 111. The annular flange 120 and the plate body 110 may be processed separately and then fixed by welding, bonding, crimping and other processes; or, the annular flange 120 and the plate body 110 may be an integral part formed by an integral molding process such as injection molding and hole drawing. In order to facilitate the protrusion 220 of the second connection object 200 to pass through the plate body 110 and the annular flange 120, the plate body 110 may be provided with a through hole, and the inner hole cavity of the through hole may be connected to the inner ring cavity of the annular flange 120. The plate body 110 is processed by the hole drawing process, and the through hole and the annular flange 120 can be obtained in one step. Therefore, the hole drawing process can have the advantages of convenient processing and simplified processing.

[0049] It should be noted that the first connection object 100 may be an object capable of realizing a certain function, such as the first connection object 100 may be a partition plate capable of realizing the function of separating spaces, etc. Alternatively, the first connection object 100 may be a part of an object capable of realizing a certain function, such as the first connection object 100 may be a bracket of a fan, a base of a connector, etc.

[0050] Continue to refer Figure 3 , the second connection object 200 includes a base 210 and a protrusion 220, and the protrusion 220 can protrude from the base 210. There are two ways to connect the protrusion 220 to the base 210. One way to connect the protrusion 220 to the base 210 is: the protrusion 220 can be connected to the surface of the base 210, and the protrusion 220 can extend in a direction away from the surface of the base 210. The protrusion 220 and the base 210 can be processed separately and then fixed by welding, bonding, crimping and other processes; or the protrusion 220 and the base 210 can be formed into an integral part by an integral molding process such as injection molding.

[0051] refer to Figure 4-Figure 6 , another connection method between the protrusion 220 and the base 210 is: the protrusion 220 can be penetrated into the base 210, and at least part of the protrusion 220 can be exposed on the outside of the base 210. For example, the protrusion 220 can have an external thread, the base 210 can have a threaded hole, and the protrusion 220 can be threadedly connected to the threaded hole; for another example, the protrusion 220 can be a fastener with a "T"-shaped longitudinal cross-section, such as a rivet or a screw. The base 210 can be a plate-like object such as a sheet metal part, a thin plate, or a shell, that is, the end face of the base 210 (the surface formed by the length and width) is larger, and the length perpendicular to the end face direction (thickness) is smaller. The end face of the base 210 can be a plane or a curved surface. Reference Figure 4-Figure 6 The base 210 may have a third end face 211 and a fourth end face 212 arranged opposite to each other in the thickness direction thereof, the protrusion 220 may pass through the third end face 211 of the base 210 from the side of the fourth end face 212 of the base 210, and at least a tail portion 4200 of the protrusion 220 may protrude outside the third end face 211 of the base 210. Optionally, the head end face of the fastener may not exceed the fourth end face 212 of the base 210, so as to smooth the surface of the second connection object 200, avoid scratching the user, and reduce the volume of the second connection object 200.

[0052] refer to Figure 6In order to fix the first connection object 100 and the second connection object 200, the protrusion 220 of the second connection object 200 can pass through the plate body 110 and the annular flange 120 of the first connection object 100, and the protrusion 220 is locked and connected with the annular flange 120. When the rivet assembly 1000 provided in the embodiment of the present application is used in the scene of fixing the shell and its internal parts, the first connection object 100 can be an internal part, the second connection object 200 can be a shell, and the fourth end face 212 of the second connection object 200 is the outer surface of the shell. Figure 6 It can be easily seen that the fourth end face 212 of the second connection object 200, that is, the outer surface of the shell, has no exposed holes. In other words, compared with the related art, the fixing method of the shell and the internal parts provided by the embodiment of the present application has the advantage of no holes on the outer surface of the shell, which is conducive to beautifying the appearance of the product.

[0053] In summary, the rivet assembly 1000 provided in the embodiment of the present application includes a first connector 100 and a second connector 200, wherein the first connector 100 includes a plate body 110 and an annular flange 120 connected to one side of the plate body 110 in the thickness direction, and the second connector 200 includes a base body 210 and a protrusion 220 protruding from the base body 210, and the protrusion 220 of the second connector 200 is passed through the plate body 110 and the annular flange 120, and then the protrusion 220 is locked and connected with the annular flange 120, so that the first connector 100 and the second connector 200 can be fixed. When the rivet assembly 1000 is used in the scene where the shell and its internal parts are fixed, the first connector 100 can be an internal part, the second connector 200 can be a shell, and the fourth end face 212 of the second connector 200 is the outer surface of the shell. The fourth end surface 212 of the second connection object 200, that is, the outer surface of the shell, has no exposed holes, so that the shell is made hole-free, which is beneficial to beautifying the appearance of the product.

[0054] The locking connection between the protrusion 220 and the annular flange 120 may be as follows:

[0055] In one possible implementation, a clamping tool sleeved on the outside of the annular flange 120 can be used to deform and shrink the annular flange 120, thereby making the annular flange 120 and the protrusion 220 interference fit, thereby locking the annular flange 120 and the protrusion 220. The clamping tool can be a clamp such as pliers, pneumatic clamps, hydraulic clamps, manual clamps, etc., which has a clamping part and a power part, and the clamping part can be clamped on the outside of the annular flange 120, and the power part can deform the clamping part, thereby deforming the annular flange 120.

[0056] In another possible implementation, refer to Figure 4-Figure 6The annular flange 120 can be deformed and retracted by the limiting block 3000 sleeved on the outside of the annular flange 120 and the punch 2000, so that the annular flange 120 is locked and connected with the protrusion 220.

[0057] This method specifically includes the following stages:

[0058] Phase 1, Reference Figure 4 The limiting block 3000 may have a receiving groove 3100 that penetrates the limiting block 3000 , and the limiting block 3000 may use the receiving groove 3100 to receive at least part of the protrusion 220 . That is, the limiting block 3000 is sleeved on the outer side of the protrusion 220 .

[0059] Phase 2, Reference Figure 5 The punch 2000 can move downward from the top of the annular flange 120 until the lower end of the punch 2000 enters the receiving groove 3100 and abuts against the upper end surface of the annular flange 120 .

[0060] Phase 3, Reference Figure 6 , the punch 2000 continues to move downward and applies pressure to the annular flange 120, so that the annular flange 120 is deformed. The inner groove wall of the receiving groove 3100 of the limit block 3000 will limit the annular flange 120 from deforming outward, so the annular flange 120 will deform inward, that is, the annular flange 120 will deform toward the protrusion 220. Optionally, in order to avoid the protrusion 220 exceeding the annular protrusion 220, the punch 2000 may have an avoidance hole 2100, and the avoidance hole 2100 may have an opening toward the protrusion 220.

[0061] Figure 6 In the embodiment, the annular flange 120 and the protrusion 220 may be in interference fit; and / or, the annular flange 120 and the protrusion 220 may be locked up and down. In other words, the annular flange 120 and the protrusion 220 may be locked and connected by interference fit; or, the annular flange 120 and the protrusion 220 may be locked and connected by locking up and down; or, the annular flange 120 and the protrusion 220 may be locked and connected by both interference fit and locking up and down.

[0062] When the annular flange 120 and the protrusion 220 are locked up and down, the protrusion 220 may have a lateral limiting surface 223, which is located on the side of the protrusion 220, that is, the lateral limiting surface 223 is located on the side of the protrusion 220 facing the annular flange 120. Figure 6The portion of the protrusion 220 (shown on the upper side) is referred to as the first portion 221 of the protrusion 220, and the portion of the protrusion 220 between the lateral limiting surface 223 and the surface of the substrate 210 (such as the third end surface 211) may be referred to as the second portion 222 of the protrusion 220. The orthographic projection of the first portion 221 of the protrusion 220 on the projection plane (the projection plane is an imaginary plane, which may be a plane perpendicular to the axis of the protrusion 220) is located outside the orthographic projection of the second portion 222 of the protrusion 220 on the projection plane. For example, the cross-sections of the first portion 221 and the second portion 222 may both be circular, and the center of the cross-section of the first portion 221 and the center of the cross-section of the second portion 222 may be located on the same straight line perpendicular to the surface of the substrate 210. The diameter of the first portion 221 may be greater than the diameter of the second portion 222.

[0063] Continue to refer Figure 6 The side limiting surface 223 can abut against the end of the annular flange 120 away from the plate body 110. In this way, the side limiting surface 223 can limit the upward movement of the annular flange 120 below it, and the annular flange 120 can also limit the downward movement of the protrusion 220, achieving the effect of locking up and down.

[0064] In order to make it easier for the annular flange 120 deformed by the punch 2000 to fill in the area below the lateral limiting surface 223 , that is, fill in the area below the first portion 221 of the protrusion 220 , further, the lateral limiting surface 223 may be conical in shape.

[0065] The number of the annular flange 120 may be one or more (two or more).

[0066] For example, when there is one annular flange 120 , there may be one protrusion 220 , and the protrusion 220 may be disposed through the annular flange 120 . The limiting block 3000 may have an accommodating groove 3100 , and the accommodating groove 3100 may accommodate the annular flange 120 .

[0067] In another exemplary embodiment, when there are multiple annular flanges 120, there may be multiple protrusions 220, and the multiple protrusions 220 may be arranged one-to-one to penetrate the multiple annular flanges 120. The limiting block 3000 may have multiple accommodating grooves 3100, and the multiple accommodating grooves 3100 may accommodate the multiple annular flanges 120 one-to-one. In this way, the limiting protrusions 220 are prevented from shifting when the punch 2000 is punching.

[0068] refer to Figure 7 The embodiment of the present application further provides a rivet 4000 , which can be configured to be riveted with the base 210 of the second connection object 200 of the riveting assembly 1000 mentioned above to form a protrusion 220 of the second connection object 200 .

[0069] Optionally, the rivet 4000 includes a head 4100 and a tail 4200. The tail 4200 of the rivet 4000 may have a lateral limiting surface 4230, the first portion 4210 of the rivet 4000 may be located on the side of the lateral limiting surface 4230 away from the head 4100 of the rivet 4000, and the second portion 4220 of the rivet 4000 may be configured to be located between the side of the lateral limiting surface 4230 close to the head 4100 of the rivet 4000 and the surface of the substrate 210. The orthographic projection of the first portion 4210 of the rivet 4000 on the projection plane may be located outside the orthographic projection of the second portion 4220 of the rivet 4000 on the projection plane. The lateral limiting surface 4230 may be configured to abut against the annular flange 120 of the first connector 100 of the pressure riveting assembly 1000. Further, the shape of the lateral limiting surface 4230 may be conical.

[0070] An embodiment of the present application also provides an electronic device, which includes a housing and a bracket, wherein the bracket can be arranged in the inner cavity of the housing and can be used to connect internal devices (such as circuit boards, etc.) of the electronic device. The bracket can be the first connector of the above-mentioned riveting assembly, and the housing can be the second connector of the above-mentioned riveting assembly. Specifically, the housing includes a base and a protrusion. Among them, the base can be shell-shaped, and the protrusion can protrude from the inner shell wall of the base. The bracket can be arranged in the inner cavity of the base, and the bracket includes a plate body and an annular flange, and the annular flange can be connected to one side of the plate body in the thickness direction. The protrusion can be penetrated by the plate body and the annular flange, and the protrusion can be locked and connected with the annular flange.

[0071] The electronic device provided in the embodiment of the present application includes a housing and a bracket, wherein the bracket includes a plate body and an annular flange connected to one side of the plate body in the thickness direction, and the housing includes a base body and a protrusion protruding from the inner shell wall of the base body, and the housing and the bracket can be fixed by passing the protrusion of the housing through the plate body and the annular flange of the bracket, and then locking the protrusion with the annular flange. The outer surface of the housing has no exposed extraction holes, so the housing is made hole-free, which is conducive to beautifying the appearance of the product.

[0072] For example, the electronic device may be a large-size interactive tablet used in teaching scenarios and conference scenarios. The terms "upper" and "lower" are used to describe the relative position relationship of each structure in the accompanying drawings, which is only for the convenience of description, and is not used to limit the scope of implementation of this application. The change or adjustment of the relative relationship shall also be regarded as the scope of implementation of this application without substantial change in the technical content.

[0073] It should be noted that: in this application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0074] In addition, in this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features thereof with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pressure riveting assembly, characterized in that: include: A first connection object (100) comprises a plate body (110) and an annular flange (120), wherein the annular flange (120) is connected to one side of the plate body (110) in a thickness direction; The second connector (200) includes a base (210) and a protrusion (220), wherein the protrusion (220) protrudes from the surface of the base (210), and the protrusion (220) penetrates the plate (110) and the annular flange (120), and the protrusion (220) and the annular flange (120) are locked and connected.

2. The pressure riveting assembly according to claim 1, characterized in that: The annular flange (120) is limited by a limit block (3000) sleeved on the outside of the annular flange (120) and is deformed and retracted by punching with a punch (2000), thereby being locked and connected with the protrusion (220).

3. The pressure riveting assembly according to claim 2, characterized in that: There is at least one annular flange (120), there is at least one protrusion (220), and at least one protrusion (220) is disposed through at least one annular flange (120) in a one-to-one correspondence; The limiting block (3000) has at least one accommodating groove (3100), and the at least one accommodating groove (3100) accommodates at least one of the annular flanges (120) in a one-to-one correspondence.

4. The pressure riveting assembly according to claim 2, characterized in that: The annular flange (120) is formed by punching holes in the plate body (110).

5. The pressure riveting assembly according to claim 2, characterized in that: The protrusion (220) is formed by riveting to the plate body (110) with rivets.

6. The pressure riveting assembly according to any one of claims 2 to 5, characterized in that: The protrusion (220) has a lateral limiting surface (223); a first portion (221) of the protrusion (220) is located on a side of the lateral limiting surface (223) away from the base (210); and a second portion (222) of the protrusion (220) is located between the lateral limiting surface (223) and the surface of the base (210); an orthographic projection of the first portion (221) of the protrusion (220) on a projection plane is located outside an orthographic projection of the second portion (222) of the protrusion (220) on the projection plane; The lateral limiting surface (223) abuts against an end of the annular flange (120) away from the plate body (110).

7. The pressure riveting assembly according to claim 6, characterized in that: The side limiting surface (223) is in a cone shape.

8. A rivet, characterized in that: The device is configured to be riveted with a base (210) of a second connecting object (200) of the self-clinching assembly (1000) according to any one of claims 1 to 7 to form a protrusion (220) of the second connecting object (200).

9. The rivet according to claim 8, characterized in that The rivet (4000) has a lateral limiting surface (4230), the first part (4210) of the rivet (4000) is located on one side of the lateral limiting surface (4230), and the second part (4220) of the rivet (4000) is configured to be located between the other side of the lateral limiting surface (4230) and the surface of the substrate (210); the orthographic projection of the first part (4210) of the rivet (4000) on the projection plane is located outside the orthographic projection of the second part (4220) of the rivet (4000) on the projection plane; The lateral limiting surface (4230) is configured to abut against the annular flange (120) of the first connecting object (100) of the riveting assembly (1000).

10. An electronic device, characterized in that: It comprises a shell and a bracket, wherein the bracket is arranged in an inner cavity of the shell, and the bracket is a first connecting object (100) of the pressure riveting assembly according to any one of claims 1 to 9, and the shell is a second connecting object (200) of the pressure riveting assembly according to any one of claims 1 to 9.

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