TWI844111B - Electronic device and restriction structure thereof - Google Patents

Abstract

A restriction structure is provided. The restriction structure is adapted to restrict an electronic element. The restriction structure includes a U-shaped member and an elastic arm. The U- shaped member includes a notch. The elastic arm is connected to the U-shaped member and is located in the notch. The elastic arm is adapted to abut the electronic element and restrict the electronic element.

Description

Electronic device and buckle structure thereof

The embodiment of the present invention is related to a buckle structure, in particular to a buckle structure with a spring arm.

The antenna modules we know of are usually sheet metal or mounted on a printed circuit board. These antenna modules need to be assembled close to the inner wall of the plastic shell of the electronic device to achieve better antenna performance.

The common way to assemble antenna modules is to fix them with adhesive or hot melt. Adhesive fixation requires that the work must be pressed and fixed according to a specific time and pressure. If the pressing and fixing effect is not good, it is easy to fall off. Hot melt fixation has good reliability, but the hot melt process parameters must be stable, otherwise the hot melt column will break. In addition, the above two fixing methods cannot be reworked.

In addition to the above-mentioned backing glue and hot melt fixing methods, it is also known that there is a method of fixing electronic parts with a snap-on structure. However, it is known that the deformation of the snap-on structure is too low and cannot meet the assembly requirements of the antenna module.

The embodiment of the present invention is to provide a buckle structure for solving the problem of the prior art, which is suitable for limiting the position of an electronic component. The buckle structure includes a U-shaped part and a spring arm. The U-shaped part includes a notch. The spring arm is connected to the U-shaped part and is located in the notch. The spring arm is suitable for abutting against the electronic component and limiting the position of the electronic component.

In one embodiment, the elastic arm includes a connecting end, a free end, a sliding surface and a limiting surface, the connecting end is connected to the U-shaped part, the sliding surface extends from the connecting end to the free end, the limiting surface is located at the free end, and the limiting surface is suitable for abutting against the electronic component and limiting the electronic component.

In one embodiment, the sliding surface is an inclined surface or a curved surface, and the thickness of the connecting end is less than the thickness of the free end.

In one embodiment, at least one anti-shrinkage groove is formed on the sliding surface.

In one embodiment, the elastic arm further includes a back side of the elastic arm, which is opposite to the sliding surface, and at least one anti-shrinkage groove is formed on the back side of the elastic arm.

In one embodiment, the U-shaped member includes a first column, a second column and a top beam, the elastic arm is connected to the top beam, the first column and the second column are located on both sides of the elastic arm, and the U-shaped member includes a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is arranged on the first column, and the second reinforcing rib is arranged on the second column.

In one embodiment, the U-shaped member includes a first arc-shaped groove portion and a second arc-shaped groove portion, the first arc-shaped groove portion is formed on the top beam and is located between the first column and the elastic arm, and the second arc-shaped groove portion is formed on the top beam and is located between the second column and the elastic arm.

In another embodiment, the present invention provides an electronic device, including an outer shell, an electronic component and a buckle structure. The electronic component is disposed inside the outer shell. The buckle structure is disposed on the inner surface of the outer shell, and the buckle structure is suitable for limiting the position of the electronic component. The buckle structure includes a U-shaped part and a spring arm. The U-shaped part includes a notch. The spring arm is connected to the U-shaped part and is located in the notch, and the spring arm is suitable for abutting against the electronic component and limiting the position of the electronic component.

In one embodiment, the electronic device further includes at least one positioning post, which is disposed on the inner surface of the housing. The electronic component includes a positioning hole, and the positioning post is suitable for passing through the positioning hole to limit the movement of the electronic component in a first direction and a second direction, the first direction being perpendicular to the second direction. The buckle structure abuts against the edge of the electronic component to limit the movement of the electronic component in a third direction, the third direction being perpendicular to the first direction and the second direction.

In one embodiment, the U-shaped member includes a first column, a second column, a top beam, a first reinforcing rib and a second reinforcing rib, the elastic arm is connected to the top beam, the first column and the second column are located on both sides of the elastic arm, the first reinforcing rib is arranged on the first column, the second reinforcing rib is arranged on the second column, the first column, the second column, the first reinforcing rib and the second reinforcing rib are connected to the housing in an integrally formed manner, the elastic arm includes a connecting end, a free end, a sliding surface and a limiting surface, the connecting end is connected to the U-shaped member, the sliding surface extends from the connecting end to the free end, the limiting surface is located at the free end, the limiting surface is suitable for abutting against the electronic component and limiting the electronic component, and the sliding surface is an inclined surface or a curved surface.

The buckle structure of the embodiment of the present invention can meet the assembly requirements of the antenna module because the elastic arm has a larger deformation amount. In addition, compared with the known back glue and hot melt fixing methods, the buckle structure of the embodiment of the present invention is easy to assemble, has high reliability, and can be reworked.

E1, E2: Electronic devices

F1, F3: snap-on structure

F2: Limit hook

1: U-shaped parts

11: The first column

12: Second Pillar

13: Top beam

141: First reinforcement rib

142: Second reinforcement rib

151: First arc groove

152: Second arc groove

19: Gap

201, 203: Grenade arm

211:Connection terminal

212: Free end

221: Sliding surface

222: Limiting surface

223: Back of the bullet arm

224: Anti-shrinkage groove

231: Sliding surface

233: Back of the bomb arm

234: Anti-shrinkage groove

3: Shell

31: Positioning column

C: Electronic parts

C1: Positioning hole

X: First direction

Y: Second direction

Z: Third direction

Figure 1A is a three-dimensional diagram showing the buckle structure of the first embodiment of the present invention.

Figure 1B shows another perspective of the buckle structure of the first embodiment of the present invention.

Figure 1C is an exploded view showing the buckle structure and electronic components of the first embodiment of the present invention.

Figure 2 shows the electronic device of the second embodiment of the present invention.

Figure 3A is a three-dimensional diagram showing the buckle structure of the third embodiment of the present invention.

Figure 3B shows another perspective of the buckle structure of the third embodiment of the present invention.

FIG. 1A is a three-dimensional diagram showing the buckle structure of the first embodiment of the present invention. FIG. 1B is another perspective of the buckle structure of the first embodiment of the present invention. FIG. 1C is an exploded diagram showing the buckle structure and the electronic component of the first embodiment of the present invention. With reference to FIGS. 1A, 1B and 1C, the buckle structure F1 is suitable for limiting an electronic component C. The buckle structure F1 includes a U-shaped part 1 and a spring arm 201. The U-shaped part 1 includes a notch 19. The spring arm 201 is connected to the U-shaped part 1 and is located in the notch 19. The spring arm 201 is suitable for abutting against the electronic component C and limiting the electronic component C.

In one embodiment, the electronic component C may be a circuit board, an antenna module or other electronic components. The above disclosure does not limit the present invention.

Referring to FIG. 1A, in one embodiment, the elastic arm 201 includes a connecting end 211, a free end 212, a sliding surface 221, and a limiting surface 222. The connecting end 211 is connected to the U-shaped member 1, the sliding surface 221 extends from the connecting end 211 to the free end 212, and the limiting surface 222 is located at the free end 212. The limiting surface 222 is suitable for abutting against the electronic component C and limiting the electronic component C. Specifically, in one embodiment, the limiting surface 222 is suitable for abutting against the upper surface of the electronic component C (e.g., a circuit board) and limiting the electronic component C (e.g., a circuit board).

Referring to FIG. 1A, in one embodiment, the sliding surface 221 is an inclined surface or a curved surface, and the thickness of the connecting end 211 is less than the thickness of the free end 212. Specifically, the thickness of the connecting end 211 is the same as the thickness of the U-shaped part 1, and the thickness of the free end 212 can be freely adjusted according to the required matching amount with the electronic component C to be limited.

Referring to FIG. 1B , in one embodiment, the elastic arm 201 further includes an elastic arm back side 223 , which is opposite to the sliding surface 221 , and has at least one anti-shrinkage groove 224 formed on the elastic arm back side 223 . The design of the anti-shrinkage groove 224 allows the elastic arm 201 to maintain its shape integrity during the injection molding process.

With reference to Figures 1A and 1B, in one embodiment, the U-shaped member 1 includes a first column 11, a second column 12 and a top beam 13, the elastic arm 201 is connected to the top beam 13, the first column 11 and the second column 12 are located on both sides of the elastic arm 201, and the U-shaped member 1 includes a first reinforcing rib 141 and a second reinforcing rib 142, the first reinforcing rib 141 is disposed on the first column 11, and the second reinforcing rib 142 is disposed on the second column 12. The first reinforcing rib 141 and the second reinforcing rib 142 can increase the structural strength of the U-shaped member 1. In the embodiment of the present invention, the elastic arm 201 is disposed on the U-shaped member 1 in a hanging manner, so it has a larger deformation amount.

With reference to Figures 1A and 1B, in one embodiment, the U-shaped member 1 includes a first arcuate groove 151 and a second arcuate groove 152. The first arcuate groove 151 is formed on the top beam 13 and is located between the first column 11 and the elastic arm 201. The second arcuate groove 152 is formed on the top beam 13 and is located between the second column 12 and the elastic arm 201. The first arcuate groove 151 and the second arcuate groove 152 can avoid stress concentration and extend the service life of the buckle structure F1.

With reference to Figures 1A, 1B and 1C, in one embodiment, the present invention provides an electronic device E1, including a housing 3, an electronic component C and a snap-on structure F1. The electronic component C is disposed inside the housing 3 (Figure 1C only shows a partial structure of the housing 3, and the above disclosure does not limit the present invention). The snap-on structure F1 is disposed on the inner surface of the housing 3, and the snap-on structure F1 is suitable for limiting the position of the electronic component C.

With reference to Figures 1A, 1B and 1C, in one embodiment, the electronic device E1 further includes at least one positioning post 31, which is disposed on the inner surface of the housing 3. The electronic component C includes a positioning hole C1, and the positioning post 31 is suitable for passing through the positioning hole C1 to limit the movement of the electronic component C in a first direction X and a second direction Y, wherein the first direction X is perpendicular to the second direction Y. The buckle structure F1 abuts against the edge of the electronic component C to limit the movement of the electronic component C in a third direction Z, wherein the third direction Z is perpendicular to the first direction X and the second direction Y.

With reference to Figures 1A, 1B and 1C, in one embodiment, the first column 11, the second column 12, the first reinforcing rib 141 and the second reinforcing rib 142 are connected to the housing 3 in an integrally formed manner.

Referring to FIG. 1C, in one embodiment, the electronic device E1 has two snap structures F1, and the snap structures F1 correspond to the two sides of the electronic component C. The electronic component C can be installed on the inner surface of the housing 3 in a vertical downward manner and limited by the snap structures F1. During the vertical downward movement of the electronic component C, the electronic component C pushes the elastic arm 201 along the sliding surface 221. After the electronic component C is positioned, the elastic arm 201 bounces back to its original position, and the limiting surface 222 is suitable for abutting against the electronic component C and limiting the electronic component C.

In one embodiment, the length of the elastic arm 201 can be greater than or equal to 4 mm. The sliding surface 221 allows the electronic component C to slide down smoothly.

FIG. 2 shows an electronic device of the second embodiment of the present invention. Referring to FIG. 2, in this embodiment, the electronic device E2 further includes a limit hook F2 and the aforementioned buckle structure F1. The limit hook F2 and the buckle structure F1 correspond to the two sides of the electronic component C. In this embodiment, the electronic component C can be installed on the inner surface of the housing 3 by rotating and snapping in, and is limited by the limit hook F2 and the buckle structure F1.

FIG. 3A is a three-dimensional diagram showing the buckle structure of the third embodiment of the present invention. FIG. 3B is another perspective of the buckle structure of the third embodiment of the present invention. With reference to FIG. 3A and FIG. 3B, in this embodiment, the elastic arm 203 of the buckle structure F3 includes a sliding surface 231 and an elastic arm back 233, and the elastic arm back 233 is opposite to the sliding surface 231. In this embodiment, at least one anti-shrinkage groove 234 is formed on the sliding surface 231. No anti-shrinkage groove is formed on the elastic arm back 233. The buckle structure F3 of this embodiment can also provide the aforementioned limiting effect.

The buckle structure of the embodiment of the present invention can meet the assembly requirements of the antenna module because the elastic arm has a larger deformation amount. In addition, compared with the known back glue and hot melt fixing methods, the buckle structure of the embodiment of the present invention is easy to assemble, has high reliability, and can be reworked.

Although the present invention has been disclosed as above with a specific preferred embodiment, it is not intended to limit the present invention. Anyone familiar with this technology can still make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of the patent application attached hereto.

F1: snap-fit structure 1: U-shaped part 11: first column 12: second column 13: top beam 151: first arc-shaped groove 152: second arc-shaped groove 19: notch 201: spring arm 211: connection end 212: free end 221: sliding surface 222: limit surface 3: housing C: electronic parts

Claims (8)

A buckle structure is suitable for limiting a circuit board, comprising: a U-shaped member including a notch; a spring arm connected to the U-shaped member and located in the notch, the spring arm being suitable for abutting against the circuit board and limiting the circuit board, wherein the spring arm comprises a connecting end, a free end, a sliding push surface and a limiting surface, the connecting end being connected to the U-shaped member, the sliding push surface extending from the connecting end to the free end, the limiting surface being located At the free end, the limiting surface is suitable for abutting against the upper surface of the circuit board and limiting the circuit board, wherein the U-shaped member includes a first column, a second column and a top beam, the elastic arm is connected to the top beam, the first column and the second column are located on both sides of the elastic arm, and the U-shaped member includes a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is arranged on the first column, and the second reinforcing rib is arranged on the second column. The buckle structure as described in claim 1, wherein the sliding surface is an inclined surface or a curved surface, and the thickness of the connecting end is less than the thickness of the free end. The buckle structure as described in claim 2, wherein at least one anti-shrinkage groove is formed on the sliding surface. The buckle structure as described in claim 2, wherein the elastic arm further includes a back side of the elastic arm, the back side of the elastic arm is opposite to the sliding surface, and at least one anti-shrinkage groove is formed on the back side of the elastic arm. The buckle structure as described in claim 1, wherein the U-shaped member includes a first arc-shaped groove portion and a second arc-shaped groove portion, the first arc-shaped groove portion is formed on the top beam and located between the first column and the elastic arm, and the second arc-shaped groove portion is formed on the top beam and located between the second column and the elastic arm. An electronic device includes: an outer shell; an electronic component disposed in the outer shell; a buckle structure disposed on the inner surface of the outer shell, the buckle structure is suitable for limiting the position of the electronic component, including: a U-shaped part including a notch; a spring arm connected to the U-shaped part and located in the notch, the spring arm is suitable for abutting the electronic component and limiting the position of the electronic component, wherein when the electronic component is positioned, the spring arm bounces back to its original position, wherein the U-shaped part includes a first column, a second column and a top beam, the spring arm is connected to the top beam, the first column and the second column are located on both sides of the spring arm, and the U-shaped part includes a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is disposed on the first column, and the second reinforcing rib is disposed on the second column. An electronic device comprises: an outer shell; an electronic component arranged in the outer shell; a buckle structure arranged on the inner surface of the outer shell, the buckle structure is suitable for limiting the position of the electronic component, comprising: a U-shaped member including a notch; and a spring arm connected to the U-shaped member and located in the notch, the spring arm is suitable for abutting against the electronic component and limiting the position of the electronic component, wherein, when the electronic component is positioned, the spring arm bounces back to its original position; and at least one positioning post, which is disposed on the inner surface of the housing, the electronic component includes a positioning hole, the positioning post is suitable for passing through the positioning hole to limit the movement of the electronic component in a first direction and a second direction, the first direction is perpendicular to the second direction, and the buckle structure abuts against the edge of the electronic component to limit the movement of the electronic component in a third direction, the third direction is perpendicular to the first direction and the second direction. An electronic device includes: an outer shell; a circuit board arranged in the outer shell; a buckle structure arranged on the inner surface of the outer shell, the buckle structure is suitable for limiting the position of the circuit board, including: a U-shaped member including a notch; a spring arm connected to the U-shaped member and located in the notch, the spring arm is suitable for abutting the circuit board and limiting the position of the circuit board, wherein the U-shaped member includes a first column, a second column, a top beam, a first reinforcing rib and a second reinforcing rib, the spring arm is connected to the top beam, the first column and the second column are located on both sides of the spring arm, the first reinforcing rib The first column is arranged on the first column, the second reinforcing rib is arranged on the second column, the first column, the second column, the first reinforcing rib and the second reinforcing rib are connected to the outer shell in an integrally formed manner, the elastic arm includes a connecting end, a free end, a sliding surface and a limiting surface, the connecting end is connected to the U-shaped part, the sliding surface extends from the connecting end to the free end, the limiting surface is located at the free end, the limiting surface is suitable for abutting against the upper surface of the circuit board and limiting the circuit board, the sliding surface is an inclined surface or a curved surface, wherein the limiting surface is located at the end surface of the free end.

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