Riveting structure
The riveting structure and rivet removal tool solve the time-consuming and space-occupying problems of connecting the printed circuit board and the casing, achieve quick and simple fixing and disassembly, and reduce costs.
Patent Information
- Application Number
- CN202422770158.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-13
AI Technical Summary
The existing screw fastening connection method between the printed circuit board and the housing is time-consuming and requires housing space in narrow areas, resulting in inconvenience in assembly.
The riveted structure is adopted, and the rod-shaped part of the rivet is inserted into the inner annular groove. The expansion force is applied by the deformable pressure head to expand and position the rod-shaped part, thereby achieving rapid fixation of the base plate and the casing. When removing, a specially designed rivet removal tool is used to clamp the rivet head through the clamping groove and compress it to remove the rivet.
It realizes quick connection when the installation height is limited, the assembly is simple and fast, the connector is low-priced and easy to disassemble, which reduces the assembly time and material costs.
Smart Images
Figure CN223447409U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a riveting structure, and more particularly to a riveting structure for fixing a substrate to a case. BACKGROUND
[0002] Currently, the connection between a printed circuit board and a case is mainly achieved by screw fastening. The amount of screws used is large, and it takes a long time to tighten the screws. The effective thread depth of a threaded hole usually needs to be at least 1.5 times the diameter of the screw. When assembling in a narrow area, the screw post needs to be lengthened in the opposite direction to ensure sufficient effective thread length, thus occupying space in the case. SUMMARY
[0003] The present application provides a riveting structure to solve the problems of the prior art.
[0004] According to an embodiment of the present application, a riveting structure is used to fix a substrate to a case. The riveting structure includes a mounting portion and a rivet. The mounting portion is arranged on the case, and the mounting portion has an inner annular groove. The rivet has a head portion, a rod portion, and a hollow groove, wherein the hollow groove extends in the head portion and the rod portion, the rod portion is inserted into the inner annular groove, and the outer diameter of the rod portion is smaller than the inner diameter of the inner annular groove.
[0005] According to another embodiment of the present application, the outer diameter of the head portion is greater than the outer diameter of the rod portion.
[0006] According to another embodiment of the present application, the depth of the inner annular groove is less than 1.5 times the outer diameter of the rod portion.
[0007] According to another embodiment of the present application, the substrate has a through hole, the rod portion of the rivet passes through the through hole, and the substrate is located between the head portion of the rivet and the mounting portion.
[0008] According to another embodiment of the present application, the outer diameter of the head portion is greater than the inner diameter of the through hole.
[0009] According to another embodiment of the present application, the rod portion of the rivet further has an expanded outer diameter, when the rod portion of the rivet is subjected to an expansion force, the outer diameter of the rod portion expands to the expanded outer diameter, and the expanded outer diameter is equal to the inner diameter of the inner annular groove.
[0010] According to another embodiment of the present application, the hollow groove has an original inner diameter and an expanded inner diameter, and the expanded inner diameter is located in the rod portion, when the hollow groove of the rivet is subjected to an expansion force, the hollow groove of the rivet expands from the original inner diameter to the expanded inner diameter.
[0011] According to another embodiment of the present application, the hollow groove is used to accommodate a deformable pressure head, and the pressure head is used to apply the expansion force.
[0012] In summary, the present riveting structure of the base plate and the shell can still achieve connection when the installation height is limited, and only one time of pressing by the pressing head is needed during assembly to achieve assembly, so that the assembly is simple and fast, the rivet structure is simple and can be formed by one time of stamping, and the connecting piece is lower in price. When the rivet is removed, a specially designed rivet removal tool is used, the head of the rivet to be removed is clamped by abutting the clamping groove, so as to clamp and compress the rivet, and the rivet is removed from the inner annular groove of the mounting portion.
[0013] The above description will be described in detail in the embodiments, and the technical solutions of the present application will be further explained. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to make the above and other purposes, features, advantages and embodiments of the present application more obvious and easy to understand, the following is a description of the accompanying drawings:
[0015] Figure 1 is a perspective view of the riveting structure of the present application;
[0016] Figure 2 is a sectional view of the riveting structure of the present application in a first state;
[0017] Figure 3 is a sectional view of the riveting structure of the present application in a second state;
[0018] Figure 4 is a sectional view of the riveting structure of the present application after the pressing head is removed; Figure 3
[0019] Figure 5 is a side view of the rivet removal tool of the present application;
[0020] Figure 6 is a partially enlarged sectional view of the rivet removal tool of the present application; and
[0021] Figure 7 is a partially enlarged perspective view of the rivet removal tool of the present application. Figure 5
[0022] Wherein, the following is a description of the reference signs:
[0023] 100: riveting structure
[0024] 102: mounting portion
[0025] 102a: inner annular groove
[0026] 104: rivet
[0027] 104a: head
[0028] 104b: rod-shaped portion
[0029] 104c: hollow slot
[0030] 104d: opening
[0031] 106: pressure head
[0032] 106a: bottom
[0033] 110: base plate
[0034] 110a: through hole
[0035] 200: rivet removal tool
[0036] 201: handle
[0037] 203: handle
[0038] 204: rotating shaft
[0039] 201a: tip
[0040] 203a: tip
[0041] 205: pin shaft
[0042] 205b: top end
[0043] 205a: bottom end
[0044] 206: sleeve
[0045] 206a: inner inclined wall
[0046] 206b: top end
[0047] 207: chuck mechanism
[0048] 208: clamp
[0049] 208c: interval
[0050] 208a: outer expanded inclined surface
[0051] 208b: clamping groove
[0052] R1: outer diameter
[0053] R1': expanded outer diameter
[0054] R2: inner diameter
[0055] R3: outer diameter
[0056] R5: original inner diameter
[0057] R6: expanded inner diameter
[0058] D1: depth
[0059] A1: included angle
[0060] r1: distance
[0061] r2: distance DETAILED DESCRIPTION
[0062] In order to make the description of the present invention more detailed and complete, reference is made to the accompanying drawings and various embodiments described below, in which the same numbers represent the same or similar elements. On the other hand, well-known elements and steps are not described in the embodiments to avoid unnecessary limitations on the present invention.
[0063] In the embodiments and claims, unless the context specifically limits the articles, "a," "an," and "the" may refer to a single or plural number.
[0064] Please also refer to Figure 1 、 Figure 2 , Figure 1 is a three-dimensional diagram illustrating the new riveting structure 100. Figure 2 FIG1 is a cross-sectional view of the novel riveting structure 100 in a first state. The riveting structure 100 is used to secure a substrate 110 to a housing. The riveting structure 100 includes a mounting portion 102 and a rivet 104. The mounting portion 102 is disposed on or is a portion of the housing. The mounting portion 102 has an inner annular groove 102a. The rivet 104 has a head 104a, a rod 104b, and a hollow groove 104c. The hollow groove 104c extends within the head 104a and the rod 104b and has an opening 104d in the head 104a. The rod 104b of the rivet 104 is inserted into the inner annular groove 102a of the mounting portion 102. The outer diameter R1 of the rod 104b is smaller than the inner diameter R2 of the inner annular groove 102a to facilitate insertion of the rod 104b into the inner annular groove 102a. In some embodiments of the present invention, the substrate 110 may be various forms of circuit boards, such as a printed circuit board.
[0065] When the riveting structure 100 is used to secure a substrate 110 to a housing, the rod 104b of the rivet 104 passes through the through-hole 110a of the substrate 110 and is inserted into the inner annular groove 102a of the housing mounting portion 102, causing the head 104a of the rivet 104 to abut against the upper surface of the substrate 110. In some embodiments of the present invention, the outer diameter R3 of the head 104a of the rivet 104 is greater than the outer diameter R1 of the rod 104b and also greater than the inner diameter of the through-hole 110a of the substrate 110, thereby facilitating the rivet 104 securing the substrate 110. When the substrate 110 is positioned between the head 104a of the rivet 104 and the housing mounting portion 102, the substrate 110 is constrained between the head 104a of the rivet 104 and the mounting portion 102.
[0066] In some embodiments of the present application, the depth D1 of the inner annular groove 102a of the mounting portion 102 is less than 1.5 times the outer diameter R1 of the rod portion 104b of the rivet 104, so that the rivet 104 has a small required length, which is beneficial for assembly in a narrow area.
[0067] In some embodiments of the present application, the hollow groove 104c of the rivet 104 is used to accommodate a deformable plunger 106, which is used to apply an expansion force to the hollow groove 104c. When the plunger 106 has not applied an expansion force to the hollow groove 104c, the riveting structure 100 is in the first state, the rod portion 104b of the rivet 104 maintains a uniform outer diameter R1, and the rivet 104 has not been positioned on the mounting portion 102 to secure the substrate 110 to the housing.
[0068] Please refer to Figure 3 , Figure 4 , Figure 3 to illustrate a cross-sectional view of the riveting structure 100 of the present application in the second state, Figure 4 to illustrate Figure 3 a cross-sectional view of the riveting structure 100 of the present application after the plunger is removed. When the riveting structure 100 is desired to change from the first state to the second state, an expansion force is applied to the hollow groove 104c by the bottom 106a of the deformable plunger 106, so that the hollow groove 104c of the rivet 104 expands from the original inner diameter R5 to the expanded inner diameter R6, and the rod portion 104b of the rivet 104 expands from the outer diameter R1 to the expanded outer diameter R1', which is equal to the inner diameter R2 of the inner annular groove 102a. The rod portion 104b of the rivet 104 is positioned on the mounting portion 102 due to the expanded outer diameter R1', so that the substrate 110 can be secured to the housing. After the rivet 104 secures the substrate 110 to the housing, the plunger 106 can be removed, and the riveting is completed. The plunger 106 can be inserted into or removed from the hollow groove 104c through the opening 104d of the rivet 104. In some embodiments of the present application, the deformable plunger 106 can be a rubber column.
[0069] Please refer to Figure 5 , Figure 6 , Figure 7 , Figure 5 to illustrate a side view of the rivet removal tool 200 of the present application, Figure 6 to illustrate a partially enlarged cross-sectional view of the rivet removal tool 200 of the present application, Figure 7 to illustrate Figure 5 a partially enlarged perspective view of the rivet removal tool 200 of the present application. The above Figures 1 to 4 describes the process of using the riveting structure 100 to secure a substrate 110 to a housing. When the rivet 104 is desired to be removed (for example, when the substrate 110 is desired to be removed from the housing), the rivet removal tool 200 is used to facilitate the removal of the rivet 104 from the mounting portion 102.
[0070] In some embodiments of the present application, the rivet removal tool 200 comprises a pin 205, two handles 201, 203, a chuck mechanism 207, and a sleeve 206. The two handles 201, 203 are pivotally connected to the top end 205b of the pin 205 via a pivot 204. The chuck mechanism 207 is connected to the pin 205. The sleeve 206 is slidably connected to the chuck mechanism 207, and the ends 201a, 203a of the two handles 201, 203 abut the top end 206b of the sleeve 206. By moving the two handles 201, 203 in the direction of the arrow of FIG. 2, the relative position of the sleeve 206 and the pin 205 is pushed, so that the sleeve 206 drives the chuck mechanism 207, and the chuck mechanism 207 clamps the head 104a of the rivet 104. When the head 104a of the rivet 104 is clamped and compressed, the expanded outer diameter R1' of the rod-shaped portion 104b of the rivet 104 is also compressed synchronously. When the expanded outer diameter R1' of the rod-shaped portion 104b is compressed to be smaller than the opening inner diameter of the inner annular groove 102a, the rivet 104 is easily pulled out of the inner annular groove 102a of the mounting portion 102 by the rivet removal tool 200. Figure 5 In some embodiments of the present application, the ends 201a, 203a of the two handles 201, 203 are U-shaped structures, which facilitate moving the two handles 201, 203 so that the ends 201a, 203a slide relative to the top end 206b of the sleeve 206 and push the sleeve 206. Because the distance r1 from the pivot axis of the ends 201a, 203a of the two handles 201, 203 to the end is greater than the distance r2 to the side, when the two handles 201, 203 are moved in the direction of the arrow of FIG. 2, the ends 201a, 203a of the two handles 201, 203 drive the sleeve 206 to move downward relative to the top end 205b of the pin 205.
[0071] In some embodiments of the present application, the ends 201a, 203a of the two handles 201, 203 are U-shaped structures, which facilitate moving the two handles 201, 203 so that the ends 201a, 203a slide relative to the top end 206b of the sleeve 206 and push the sleeve 206. Because the distance r1 from the pivot axis of the ends 201a, 203a of the two handles 201, 203 to the end is greater than the distance r2 to the side, when the two handles 201, 203 are moved in the direction of the arrow of FIG. 2, the ends 201a, 203a of the two handles 201, 203 drive the sleeve 206 to move downward relative to the top end 205b of the pin 205. Figure 6
[0072] In some embodiments of the present application, the chuck mechanism 207 is connected to the bottom end 205a of the pin 205, and the chuck mechanism 207 comprises a plurality of clamping pieces 208 arranged along a circumferential direction. Adjacent clamping pieces 208 of the plurality of clamping pieces 208 each have a spacing 208c.
[0073] In some embodiments of the present application, each clamping piece 208 has an outwardly expanding slope 208a, and the sleeve 206 has an inner sloping wall 206a corresponding to the outwardly expanding slope 208a. When the sleeve 206 is driven by the ends 201a, 203a of the two handles 201, 203 to move downward relative to the top end 205b of the pin 205, the inner sloping wall 206a of the sleeve 206 abuts the outwardly expanding slope 208a of each clamping piece 208, so that the spacing 208c between the plurality of clamping pieces 208 is reduced.
[0074] In some embodiments of the present application, the sleeve 206 is slidingly connected between the outer expansion surface 208a of the clamping member 208 and the top end 205b of the pin shaft 205, and thereby drives the clamping member 208 to clamp the rivet 104.
[0075] In some embodiments of the present application, each clamping member 208 has a clamping groove 208b, and the outer expansion surface 208a and the clamping groove 208b are located at two opposite sides of each clamping member 208. Each clamping groove 208b is used to abut against the head 104a of the rivet 104 to be removed, so as to clamp and compress the rivet 104, and thereby remove the rivet 104 from the inner annular groove 102a of the mounting portion 102.
[0076] In some embodiments of the present application, when the two handles (201, 203) are moved in the arrow direction, the included angle A1 between the two handles (201, 203) is less than 180 degrees. Figure 5
[0077] The present application provides a riveting structure of a substrate and a housing, which can still achieve connection when the installation height is limited. Only one time of pressing by a pressing head is needed during assembly, so that the assembly is simple and fast, the rivet structure is simple and can be formed by one time of stamping, and the connector is lower in price. When the rivet is removed, a specially designed rivet removal tool is used, the head of the rivet to be removed is clamped by the clamping groove, so as to clamp and compress the rivet, and thereby remove the rivet from the inner annular groove of the mounting portion.
[0078] Although the present application has been disclosed with embodiments as above, it is not intended to limit the present application, and any person skilled in the art can make various modifications and decorations without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims
1. A riveting structure for fixing a substrate to a housing, characterized in that: Include: a mounting portion, disposed on the housing, the mounting portion having an inner annular groove; and A rivet has a head, a rod-shaped portion and a hollow groove, wherein the hollow groove extends into the head and the rod-shaped portion, wherein the rod-shaped portion is inserted into the inner annular groove, and the outer diameter of the rod-shaped portion is smaller than the inner diameter of the inner annular groove; the rod-shaped portion of the rivet also has an expanded outer diameter. When the rod-shaped portion of the rivet is subjected to an expansion force, the outer diameter of the rod-shaped portion expands to the expanded outer diameter, and the expanded outer diameter is equal to the inner diameter of the inner annular groove.
2. The riveted structure according to claim 1, wherein: The outer diameter of the head portion is greater than the outer diameter of the rod portion.
3. The riveted structure according to claim 1, wherein: The depth of the inner annular groove is less than 1.5 times the outer diameter of the rod-shaped portion.
4. The riveted structure according to claim 1, wherein: The base plate has a through hole, the rod-shaped portion of the rivet passes through the through hole, and the base plate is located between the head of the rivet and the mounting portion.
5. The riveted structure according to claim 4, wherein: The outer diameter of the head is larger than the inner diameter of the through hole.
6. The riveted structure according to claim 1, wherein: The hollow slot has an original inner diameter and an expanded inner diameter. The expanded inner diameter is located at the rod-shaped portion. When the hollow slot of the rivet is subjected to an expansion force, the hollow slot of the rivet expands from the original inner diameter to the expanded inner diameter.
7. The riveted structure according to claim 6, wherein: The hollow groove is used to accommodate a deformable pressing head, and the pressing head is used to apply the expansion force.