TWI446385B - Power button and electronic divice using the same - Google Patents

Description

Power button and electronic device using the power button

The invention relates to a power button and an electronic device using the same.

The electronic device is usually provided with a power button to control the on and off of the power source. The power button generally has a complicated structure and poor sealing performance. It is usually directly exposed to the air during use, and external dust, dirt, moisture, etc. are easily passed between the peripheral side of the power button and the power supply mounting hole of the electronic device. The gap enters into the electronic device, causing a short circuit in the electronic device or causing corrosion to electronic components in the electronic device, thereby posing a great threat to the use and maintenance of the electronic device.

In view of this, it is necessary to provide a power button having a simple structure and a good sealing property and an electronic device using the power button.

A power button includes a support member and a button cover. The support member is provided with a receiving hole, and the button cover is movably mounted in the receiving hole of the supporting member. The inner wall of the receiving hole is concavely disposed with a tapered chute and a card slot adjacent to one end of the supporting member. The tapered chute is generally in the shape of an inverted truncated cone, and the cross section of the support member in the axial direction is an inverted ladder shape; the button cover includes a corresponding corresponding to the tapered chute and is movably mounted on the tapered chute An inverted truncated cone-shaped cover body and an elastic hook protruding from the cover body and engaging with the card slot.

Moreover, an electronic device includes a housing and a power button, and the housing is provided with a mounting hole The power button is mounted to the mounting hole. The power button includes a support member and a button cover. The support member is provided with a receiving hole. The button cover can be movably mounted in the receiving hole of the supporting member. The inner wall of the receiving hole is adjacent to one end of the supporting member. The utility model is provided with a tapered chute and a card slot. The tapered chute is generally in the shape of an inverted truncated cone, and the cross section of the support member in the axial direction is an inverted ladder shape; the button cover comprises a corresponding corresponding to the tapered chute And an inverted truncated cone-shaped cover body disposed in the tapered chute and an elastic hook protruding from the cover body and engaging with the card slot.

The power button has a cover body arranged in a truncated cone shape, and a conical chute for receiving the cover body is recessed in the receiving hole adjacent to the open end of the support member, and has the advantages of simple structure, convenient use and good sealing performance, and can be effective Avoid dust, water, etc. entering the inside of the power button.

100‧‧‧Electronic devices

20‧‧‧shell

30‧‧‧Power button

21‧‧‧Installation holes

32‧‧‧Support

321‧‧‧ receiving hole

34‧‧‧ button cover

341‧‧‧ Cover

36‧‧‧Seal

365‧‧‧ annular groove

323‧‧‧Conical chute

325‧‧‧ card slot

3411‧‧‧ pressing surface

3412‧‧‧ inner surface

343‧‧‧Flexible hook

345‧‧‧Conical bevel

348‧‧‧Touch block

1 is a partial perspective view of an electronic device according to an embodiment of the present invention, the electronic device including a housing and a power button mounted on the housing.

2 is a perspective view of the power button shown in FIG. 1.

3 is an exploded perspective view of the power button shown in FIG. 1.

4 is a perspective view of another perspective view of the power button shown in FIG. 1.

Figure 5 is a cross-sectional view of the power button of Figure 2 taken along line V-V.

The power button of the present invention and the electronic device using the power button will be further described in detail below with reference to the accompanying drawings and specific embodiments. The power button can be applied to electronic devices such as notebook computers, desktop computers, mobile phones, LCD monitors, and flat panel televisions.

Referring to FIG. 1 , an electronic device 100 according to an embodiment of the present invention includes a housing 20 and a power supply button. Button 30. The housing 20 is provided with a mounting hole 21, and the power button 30 is correspondingly mounted and received in the mounting hole 21 of the housing 20 to control the switching of the power switch (not shown) in the electronic device 100.

2 to 4, the power button 30 includes a support member 32, a button cover 34, and a seal member 36. A receiving hole 321 is defined in the supporting member 32. The sealing member 36 is sleeved on the button cover 34 and can be movably mounted in the receiving hole 321 of the supporting member 32 together with the button cover 34.

In the present embodiment, the support member 32 has a substantially hollow cylindrical shape, and the receiving hole 321 is formed to extend through the support member 32 in the axial direction. The inner wall of the receiving hole 321 is recessed with a tapered trough 323 adjacent to one end of the support member 32. The tapered chute 323 has an inverted truncated cone shape as a whole, and the cross section along the axial direction of the support member 32 is an inverted ladder shape. The button cover 34 and the sealing member 36 sleeved on the button cover 34 are housed. A receiving groove 325 is recessed in the receiving hole 321 in the axial direction adjacent to the tapered chute 323.

The button cover 34 includes a cover body 341 and a plurality of elastic hooks 343 protruding from the cover body 341. The cover body 341 has a substantially inverted truncated cone shape, and its outer shape corresponds to the tapered chute 323 of the support member 32, so that the cover body 341 of the button cover 34 is correspondingly received in the tapered chute 323 of the support member 32. The lid body 341 includes a pressing surface 3411, an inner surface 3412 that faces the pressing surface 3411 and has a diameter slightly smaller than the diameter of the pressing surface 3411, and a tapered slope 345 formed on the circumferential side of the button cover 34. A substantially cylindrical contact block 348 is protruded from a power switch (not shown) on a circuit board (not shown) corresponding to the electronic device 100 at a substantially central position on the inner surface 3412. The card slot 325 of the plurality of elastic hooks 343 corresponding to the support member 32 protrudes from the inner surface 3412 of the cover body 341. In the present embodiment, three elastic hooks 343 are provided in total. The three elastic hooks 343 are uniformly protruded around the cover 341 on the inner surface 3412 adjacent to the periphery thereof. The elastic hook 343 can be formed by a stamping process or with a cover body The 341 is made in one piece. The card slot 325 is an annular card slot and is recessed on the inner wall of the support member 32, so that the button cover 34 can ensure that the elastic hook 343 fits snugly into the card slot 325 during the rotation process, thereby facilitating installation.

In the present embodiment, the sealing member 36 is made of elastic plastic, which has a conical annular shape, is sleeved on the elastic hook 343 of the button cover 34, and is fixed on the inner surface of the button cover 34 by double-sided tape or glue. On the 3412. An annular groove 365 is formed on the outer peripheral surface of the sealing member 36 to enhance the elasticity of the sealing member 36. When the sealing member 36 is pressed, the annular groove 365 is for receiving the deformed portion of the sealing member 36.

Referring to FIG. 5 simultaneously, when assembling the power button 30, the sealing member 36 is first sleeved on the elastic hook 343, and the sealing member 36 is adhered to the inner surface 3412 of the button cover 34 by double-sided tape or glue, and then The button cover 34 is received in the support member 32. At this time, the button cover 34 and the sealing member 36 are received in the tapered chute 323, and the sealing member 36 is correspondingly elastically resisted at the bottom of the tapered chute 323. The elastic hook 343 is correspondingly held in the card slot 325.

In use, the pressing surface 3411 of the button cover 34 is pressed down, the sealing member 36 is compressed and deformed, and the deformed portion of the sealing member 36 is received in the annular groove 365; at the same time, the elastic hook 343 is disengaged from the slot 325 until the button The tapered bevel 345 of the cover 34 abuts against the inner wall of the tapered chute 323 of the support member 32. At this time, the contact block 348 of the button cover 34 is pressed along with the cover 341 to trigger the power switch on the circuit board in the electronic device 100. After the button cover 34 is released, under the elastic action of the sealing member 36, the sealing member 36 drives the button cover 34 to rebound until the elastic hook 343 of the power button and the card slot 325 are engaged.

Since the circumferential surface of the cover 341 of the button cover 34 is designed as a tapered bevel 345 that cooperates with the tapered chute 323, the tapered bevel 345 follows the inner wall of the tapered chute 323 when the button cover 34 is pressed down. Sliding ensures that the center of the button cover 34, the support member 32 and the power switch on the circuit board are on the same line, ensuring that each time the power button 30 is pressed The contact block 348 can be pressed at the center of the power switch to accurately switch the electronic device 100; at the same time, the button cover 34 can only be pressed down to the position where the tapered bevel 345 abuts against the inner wall of the tapered chute 323, the cone The chute 323 can block the button cover 34 from being further depressed, thereby preventing the electronic shrapnel on the PCB from being damaged by the abnormal pressing of the contact block 348.

It can be understood that the power button 30 can also be designed in other shapes such as a square shape, an elliptical shape, etc.; the card slot 325 can also be designed as a plurality of grooves randomly distributed along the circumference of the inner wall of the support member 32; the sealing member 36 can also be connected with the power button 30. The shape needs to be designed into other shapes.

The power button 30 has a cover body 341 disposed in an inverted truncated cone shape, and a conical chute 323 for receiving the cover body 341 is recessed in the receiving hole 321 adjacent to the open end of the support member 32, and is simultaneously disposed on the button cover 34. The sealing member 36 is provided with a simple structure and convenient use, and can effectively prevent dust, water and the like from entering the inside of the power button 30.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

32‧‧‧Support

321‧‧‧ receiving hole

34‧‧‧ button cover

341‧‧‧ Cover

36‧‧‧Seal

365‧‧‧ annular groove

323‧‧‧Conical chute

325‧‧‧ card slot

3411‧‧‧ pressing surface

343‧‧‧Flexible hook

345‧‧‧Conical bevel

348‧‧‧Touch block

Claims (9)

A power button includes a support member and a button cover. The support member is provided with a receiving hole. The button cover can be movably mounted in the receiving hole of the supporting member. The improvement is that the inner wall of the receiving hole is adjacent to the power receiving hole. One of the support members is recessed with a tapered chute and a card slot. The tapered chute is generally in the shape of an inverted truncated cone, and the cross section along the axial direction of the support member is an inverted ladder shape; the button cover includes the cone The truncated trough corresponds to and has an inverted truncated cone-shaped cover body disposed in the conical chute and an elastic hook protruding from the cover body and engaging with the card slot. The power button of claim 1, wherein the card slot is annular and is recessed adjacent to the tapered chute in an axial direction; the power button further includes a sealing member sleeved on the button cover The elastic hook is elastically held against the bottom of the tapered chute. The power button of claim 2, wherein the sealing member has a conical ring shape and is fixed to the button cover by double-sided tape or glue, and the sealing member has an annular groove on a circumferential surface thereof. The power button of claim 1 or 3, wherein the cover has a pressing surface and an inner surface opposite to the pressing surface, the inner surface having a diameter smaller than a diameter of the pressing surface, the elastic hook surrounding the The cover body is uniformly protruded on the inner surface. The power button of claim 4, wherein a center of the inner surface is convexly provided with a contact block. An electronic device includes a housing and a power button. The housing is provided with a mounting hole. The power button is mounted on the mounting hole. The power button includes a support member and a button cover. The support member is provided with a receiving hole. The button cover can be The movable seat is movably mounted in the receiving hole of the support member, and the improvement is that the inner wall of the receiving hole is recessed with a tapered chute and a card slot adjacent to one end of the support member, and the tapered chute is inverted. a truncated cone shape having an inverted ladder shape along an axial direction of the support member; the button cover includes a corresponding one of the tapered chutes and movably mounted in the tapered chute a truncated cone-shaped cover body and an elastic hook protruding from the cover body and engaging with the card slot. The electronic device of claim 6, wherein the card slot is annular and is recessed adjacent to the tapered chute in an axial direction; the power button further includes a sealing member sleeved on the button cover The elastic hook is elastically held against the bottom of the tapered chute. The electronic device of claim 7, wherein the sealing member has a conical annular shape and is fixed to the button cover by double-sided tape or glue, and the sealing member has an annular groove on a circumferential surface thereof. The electronic device of claim 7, wherein the cover has a pressing surface and an inner surface opposite to the pressing surface, the inner surface has a diameter smaller than a diameter of the pressing surface, and the elastic hook surrounds the cover Uniformly protruding on the inner surface.