CN114135560A

CN114135560A - Fastener and electronic device

Info

Publication number: CN114135560A
Application number: CN202111445515.9A
Authority: CN
Inventors: 彭术
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-03-04

Abstract

The application provides a fastener and electronic equipment, the fastener includes pole portion and head, the head is connected in the axial one end of pole portion, pole portion is equipped with the recess that extends along the circumference of pole portion, the head is including being located the first lateral wall of recess, pole portion is including being located the second lateral wall of recess, first lateral wall and second lateral wall are relative, first lateral wall inclines towards pole portion from the head, interval between first lateral wall and the second lateral wall reduces from the notch of recess towards the bottom. The electronic device includes a first component, a second component, and a fastener, the first component and the second component being connected by the fastener. The utility model provides a fastener can reduce the space of recess through first lateral wall, and the guide effect of rethread first lateral wall for the part that the fastener is connected can be full of the recess by the deflection that produces after the extrusion, improves the assembly stability of fastener, effectively avoids the fastener not hard up problem from top to bottom.

Description

Fastener and electronic device

Technical Field

The application relates to the technical field of fasteners, in particular to a fastener and electronic equipment.

Background

In industrial design, a screw is a common fastener, and two components are usually connected by the screw. However, due to factors such as the size of the component and the size error of the hole, the screw is easy to loosen up and down in the locking process, and the locking effect is poor.

Disclosure of Invention

The present application is directed to a fastener and an electronic device to solve the above problems. The present application achieves the above object by the following technical solutions.

In a first aspect, an embodiment of the present application provides a fastener, including a shank and a head, the head is connected to an axial end of the shank, the shank is provided with a groove extending along a circumferential direction of the shank, the head includes a first side wall located in the groove, the shank includes a second side wall located in the groove, the first side wall is opposite to the second side wall, the first side wall is inclined from the head toward the shank, and a distance between the first side wall and the second side wall is reduced from a notch of the groove toward a groove bottom.

In a second aspect, the present application provides an electronic device, which includes a first component, a second component, and the fastener of the first aspect, where the first component and the second component are connected by the fastener.

The embodiment of the application provides a fastener and electronic equipment, the fastener includes pole portion and head, pole portion is equipped with the recess that extends along circumference, the head is including the first lateral wall that is located the recess, pole portion is including the second lateral wall that is located the recess, first lateral wall inclines towards pole portion from the head, interval between first lateral wall and the second lateral wall reduces from the notch of recess towards the tank bottom, therefore first lateral wall can reduce the space size of recess, the guide effect of rethread first lateral wall, make the deflection that the part that the fastener is connected produced after being extrudeed by the fastener can be full of whole recess, improve the assembly stability of fastener, effectively avoid the not hard up problem from top to bottom of fastener.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is an assembly view of a screw and a middle frame provided in the related art.

Fig. 2 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.

FIG. 3 is a schematic view of the assembly of a fastener, a first component and a second component provided by an embodiment of the present application.

Fig. 4 is a schematic cross-sectional structure view of a fastener provided in an embodiment of the present application.

FIG. 5 is a cross-sectional view of a fastener provided in accordance with another embodiment of the present application.

FIG. 6 is a cross-sectional view of a fastener provided in accordance with yet another embodiment of the present application.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

Referring to fig. 1, the related art provides a screw 100, which includes a stud 110 and a nut 120, the nut 120 is connected to an axial end of the stud 110, a groove 111 is formed at an end of the stud 110 facing the nut 120, the groove 111 is recessed relative to an outer peripheral surface of the stud 110 and extends along a circumferential direction of the stud 110, and a groove sidewall and a groove bottom wall of the groove 111 are perpendicular to each other.

The screw 100 may be used to lock the middle frame 200 and a main board (not shown) of the electronic device, and the middle frame 200 may be made of a metal material such as aluminum alloy, which is easily deformed by extrusion. After the screws 100 and the middle frame 200 are assembled, the studs 110 are inserted through the middle frame 200 and the main plate, and the nuts 120 are abutted against the middle frame 200. Although the middle frame 200 may be deformed by being pressed to fill the groove 111 of the screw 100, the whole groove 111 cannot be filled with the deformation of the middle frame 200 due to being pressed, and particularly, the deformation cannot be filled into the side of the groove 111 adjacent to the stud 110, so that the screw 100 cannot be effectively fixed, and the screw 100 is easily loosened up and down.

In view of the above, after a great deal of research and verification, the inventor proposes a fastener and an electronic device having the fastener, where the fastener includes a shaft and a head, the shaft is provided with a groove extending in a circumferential direction, the head includes a first sidewall located in the groove, the shaft includes a second sidewall located in the groove, the first sidewall is inclined from the head toward the shaft, and a distance between the first sidewall and the second sidewall is reduced from a notch of the groove toward a groove bottom, so that a space size of the groove can be reduced by the first sidewall, and then a guide effect of the first sidewall allows a deformation amount of the middle frame generated by being pressed by the fastener to fill the whole groove, thereby improving an assembly stability of the fastener and effectively avoiding a problem of loosening the fastener up and down.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to better understand the fastener and the electronic device provided in the embodiments of the present application, the electronic device provided in the embodiments of the present application to which the fastener is applied will be described below.

The electronic device includes, but is not limited to, a mobile terminal, a tablet computer, a multimedia player, a personal digital assistant, a game console, and the like, and the embodiment of the present application is only described with the electronic device as an example of the mobile terminal. When the electronic device is a mobile terminal, the electronic device may further include a radio frequency circuit, a memory, an input unit, a wireless fidelity module, a display unit, a sensor, an audio circuit, a processor, a projection unit, a photographing unit, a battery, and the like.

Referring to fig. 2 and 3, an electronic device 300 according to an embodiment of the present disclosure includes a first member 310, a second member 320, and a fastener 400, where the first member 310 and the second member 320 are connected by the fastener 400. The first member 310 is provided with a first through hole 311, the second member 320 is provided with a second through hole 321, the position of the second through hole 321 corresponds to the first through hole 311, and the fastener 400 is inserted into the first through hole 311 and the second through hole 321 to fixedly connect the first member 310 and the second member 320.

When the electronic device 300 is a mobile terminal, the first part 310 may be a middle frame, the second part 320 may be a main board, and the fastener 400 is used to fixedly connect the middle frame and the main board. The electronic device 300 may further include a front panel (not shown in the view of the figure) and a rear cover 330, which are disposed on opposite sides of the middle frame, wherein the middle frame is connected between the rear cover 330 and the front panel to form a complete housing structure, and the main board is disposed in the housing structure.

In other embodiments, the first component 310 may also be a rear cover plate, and the second component 320 may also be an antenna bracket, a sound box bracket, a battery, or the like. Of course, the first member 310 and the second member 320 may be other members depending on the specific configuration of the electronic device 300, for example, the first member 310 and the second member 320 may be both housings.

Referring to fig. 3 and 4, the fastener 400 may be a screw or a bolt, the fastener 400 includes a head 410 and a shaft 420, the head 410 is connected to one axial end of the shaft 420, the shaft 420 is provided with a groove 430 extending along a circumferential direction of the shaft 420, the head 410 includes a first sidewall 411 located in the groove 430, the shaft 420 includes a second sidewall 421 located in the groove 430, the first sidewall 411 and the second sidewall 421 are oppositely disposed, the first sidewall 411 is inclined from the head 410 toward the shaft 420, and a distance between the first sidewall 411 and the second sidewall 421 decreases from a notch of the groove 430 toward a bottom of the groove 430.

The fastener 400 may be used to connect the first member 310 and the second member 320, and after assembly, the shank 420 is inserted through the first member 310 and the second member 320, and the head 410 abuts against the first member 310. The first member 310 may be a middle frame, which is typically an aluminum alloy piece, and the fastener 400 is a stainless steel piece, the hardness of the fastener 400 being greater than the hardness of the first member 310. The first component 310 can generate a certain deformation after being extruded by the fastener 400, the fastener 400 can reduce the space size of the groove 430 through the first side wall 411, and then the guide effect of the first side wall 411 enables the deformation generated by the extrusion of the fastener 400 on the first component 310 to be full of the whole groove 430, so that the assembly stability of the fastener 400 is improved, the problem of up-and-down looseness of the fastener 400 is effectively avoided, and the connection stability of the first component 310 and the second component 320 is improved.

In this embodiment, the head 410 may be one of a hexagonal head, a square head, a cylindrical head, a semicircular head, an oblate head, a pan head, a countersunk head, a half countersunk head, a hexagon socket head, a double hexagonal head, and a T-shaped head. The shaft portion 420 is a cylinder, and an end of the shaft portion 420 remote from the head portion 410 may be one of a rolled end, a chamfered end, a spherical end, a conical end, a truncated conical end, a flat end, a concave end, a cylindrical end, a scraping end, and a neck breaking end.

The stem portion 420 may include a smooth section and a threaded section, the smooth section being connected between the head portion 410 and the threaded section, the groove 430 being located in the smooth section; alternatively, a threaded section is connected between the smooth section and the head 410, and the groove 430 is located in the threaded section; alternatively, the shaft 420 may include only a threaded section, i.e., the outer circumference of the shaft 420 may be threaded throughout, with the recess 430 being located in the threaded section.

In this embodiment, the stem 420 further includes a channel bottom wall 431, the channel bottom wall 431 being connected between the first side wall 411 and the second side wall 421, the first side wall 411, the channel bottom wall 431, and the second side wall 421 collectively defining the recess 430. The groove bottom wall 431 is a cylindrical surface, the groove bottom wall 431 is recessed relative to the outer peripheral surface of the rod part 420, the groove bottom wall 431 can be parallel to the outer peripheral surface of the rod part 420, and the second side wall 421 can be an annular plane and perpendicular to the groove bottom wall 431, so that the groove 430 can be conveniently machined and formed.

In some embodiments, the outer diameter of the head portion 410 is larger than the outer diameter of the shaft portion 420, so that the head portion 410 can completely cover the second through hole 321 of the second member 320, and the amount of deformation of the first member 310 after being pressed can be increased to ensure that the groove 430 can be filled. In one embodiment, the difference between the outer diameter of the head portion 410 and the outer diameter of the stem portion 420 is equal to the depth of the groove 430.

Further, the head 410 may further include a head end surface 412 and a head peripheral wall 413, the head end surface 412 is located on a side of the head 410 away from the rod portion 420, the head end surface 412 may be a plane, and the head peripheral wall 413 is connected to the head end surface 412 and is perpendicular to the head end surface 412. The head face 412 may be provided with a tool receptacle (not shown) which may be a straight slot, a cross slot, a polygonal slot, or the like, adapted for insertion of a tool to rotate the fastener 400 with the tool.

In some embodiments, the first through hole 311 on the first part 310 is a stepped hole, the first through hole 311 includes a first sub-hole 3111 and a second sub-hole 3112 coaxially disposed, the second sub-hole 3112 is located on a side of the first sub-hole 3111 facing the second part 320, and an inner diameter of the second sub-hole 3112 is smaller than the first sub-hole 3111 and equal to the second through hole 321 to form a counter-sunk surface between the first sub-hole 3111 and the second sub-hole 3112. The rod part 420 is inserted into the second sub-hole 3112 and the second through-hole 321, and the head part 410 is inserted into the first sub-hole 3111 and abuts against a counter surface between the first sub-hole 3111 and the second sub-hole 3112. The head end face 412 may be flush with the outer surface of the first member 310 or set back toward the main plate relative to the outer surface of the first member 310.

In some embodiments, the head peripheral wall 413 may be provided with a plurality of teeth 440, the plurality of teeth 440 being arranged at intervals along the circumferential direction of the head 410. After the assembly of the fastener 400 and the first member 310 is completed, the tooth 440 is inserted into the first sub-hole 3111, and the engagement of the tooth 440 improves the connection stability of the fastener 400 and the first member 310, and ensures a certain sealing performance.

In this embodiment, each tooth 440 may be straight, that is, the head 410 is generally shaped as a spur gear, so as to facilitate manufacturing. In other embodiments, each tooth 440 may be helical, i.e., the head 410 may be helical, which may improve assembly accuracy compared to a straight gear, although the machining cost may be increased.

In some embodiments, the first sidewall 411 is adjacent to the head peripheral wall 413, i.e., the first sidewall 411 is directly connected to the head peripheral wall 413, and the first sidewall 411 extends obliquely from the head peripheral wall 413 to the bottom of the groove 430. Therefore, the guiding effect of the first side wall 411 can be improved, the part of the first component 310 which is extruded and deformed can be smoothly guided into the groove 430, the blockage is avoided, other surface types do not need to be processed between the first side wall 411 and the head peripheral wall 413, and the manufacture of the fastener 400 is simpler and more convenient.

In some embodiments, the included angle between the first sidewall 411 and the head end face 412 is 10 ° to 30 °. Thus, the included angle between the first sidewall 411 and the head end surface 412 is within a reasonable range, so as to effectively avoid the problem that the flow direction of the squeezed portion of the first member 310 cannot be effectively changed when the angle is too small, so that the first member 310 flows to the second sidewall 421 of the groove 430, and the deformation of the first member 310 is too large when the angle is too large, so that the first member is easily squeezed out of the groove 430.

In this embodiment, the angle between the first side wall 411 and the head end face 412 is equal to 13 °, so that the screw 400 is suitable for assembling a middle frame and a main board of a mobile terminal. Of course, in other embodiments, the included angle between the first sidewall 411 and the head end surface 412 may be equal to 10 °, 20 °, 30 °, or the like.

Referring to fig. 5, in some embodiments, the first sidewall 411 and the head peripheral wall 413 are spaced from each other, the head 410 further includes a head bottom wall 414 facing the rod portion 420, the head bottom wall 414 surrounds the periphery of the first sidewall 411 and is connected to the first sidewall 411, and the head bottom wall 414 is further adjacent to the head peripheral wall 413; the included angle between the head bottom wall 414 and the head end face 412 is smaller than the included angle between the first side wall 411 and the head end face 412, that is, the inclination of the head bottom wall 414 relative to the head end face 412 is smaller than the first side wall 411, so that the deformation of the first member 310 after being pressed can be reduced.

In the present embodiment, the head bottom wall 414 is an annular flat surface, the head bottom wall 414 is parallel to the head end surface 412, and the head bottom wall 414 and the head peripheral wall 413 are perpendicular to each other. The orthographic projections of the first side wall 411 and the second side wall 421 on the axial direction of the rod part 420 are completely coincident, and the annular width of the head bottom wall 414 is equal to the difference between the outer diameter of the head part 410 and the outer diameter of the rod part 420. Wherein, as the loop width of the head bottom wall 414 increases, the loop width of the first side wall 411 decreases, and the deformation amount of the first member 310 after being pressed decreases, and those skilled in the art can set the loop width of the head bottom wall 414 according to actual requirements, and is not limited in detail herein.

Referring to fig. 6, in some embodiments, the groove bottom wall 431 and the outer peripheral surface of the rod portion 420 are parallel to each other, and an included angle between the second side wall 421 and the groove bottom wall 431 is an acute angle, that is, the second side wall 421 inclines from the rod portion 420 toward the head portion 410, so that a receiving space for flowing metal can be formed between the second side wall 421 and the groove bottom wall 431, and the problem that the first member 310 is deformed too much to flow out of the groove 430 due to the extrusion, which affects the assembly accuracy, can be avoided.

In some embodiments, the fastener 400 is an integrally formed part, the structure of integration not only can ensure the stability of the structure and the performance, but also is convenient to form and simple to manufacture, redundant assembly parts and connection procedures are omitted, the assembly efficiency is greatly improved, the reliability of the fastener 400 is ensured, and moreover, the integral strength and the stability of the integrally formed structure are higher, the assembly is more convenient, and the service life is longer.

In summary, according to the fastening device 400 provided by the embodiment of the present application, the first sidewall 411 is inclined from the head 410 toward the rod 420, and the distance between the first sidewall 411 and the second sidewall 421 is reduced from the notch of the groove 430 toward the bottom of the groove 430, so that the first sidewall 411 can occupy a part of the space of the groove 430 in advance, and then the whole groove 430 can be filled with the deformation amount generated by the extrusion of the fastening device 400 on the first member 310 due to the guiding effect of the first sidewall 411, thereby improving the assembly stability of the fastening device 400, and effectively avoiding the problem of up-and-down looseness of the fastening device 400.

In the description of the present embodiments, reference to the description of the terms "some embodiments," "other embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this example, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples and features of the various embodiments or examples described in this example can be combined and combined by those skilled in the art without contradiction.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A fastener, characterized in that, includes pole portion and head, the head connect in the axial one end of pole portion, the pole portion is equipped with along the recess of the circumference extension of pole portion, the head is including being located first lateral wall in the recess, the pole portion is including being located second lateral wall in the recess, first lateral wall with the second lateral wall is relative, first lateral wall certainly the head is towards the slope of pole portion, first lateral wall with interval between the second lateral wall certainly the notch of recess reduces towards the bottom.

2. The fastener of claim 1, wherein the head includes a head peripheral wall, the first sidewall abutting the head peripheral wall.

3. The fastener of claim 2, wherein the head peripheral wall is provided with a plurality of teeth arranged at intervals in a circumferential direction of the head.

4. The fastener of claim 1, wherein the head further comprises a head face opposite the guide face, and wherein the first sidewall includes an angle of between 10 ° and 30 ° with the head face.

5. The fastener of claim 1, wherein the head further comprises a head bottom wall facing the shaft, the head bottom wall surrounds the periphery of the first side wall and is connected to the first side wall, and an included angle between the head bottom wall and the head end surface is smaller than an included angle between the first side wall and the head end surface.

6. The fastener of claim 1, wherein the shank includes a channel bottom wall connected between the first and second sidewalls, the first, second and third sidewalls collectively defining the recess, the second sidewall being acutely angled from the channel bottom wall.

7. The fastener of claim 1, wherein the head has an outer diameter greater than the shank.

8. The fastener of claim 1, wherein the fastener is a screw.

9. An electronic device comprising a first component, a second component, and a fastener as claimed in any one of claims 1-8, the first component and the second component being connected by the fastener.

10. The electronic device of claim 9, wherein the head abuts the first member, and wherein the fastener has a hardness greater than a hardness of the first member.