CN107871638B - Switch mechanism and electronic device with same - Google Patents

Abstract

A switch mechanism includes a bearing plate, a rotating assembly and a pressing assembly. The rotating assembly includes a turntable, a first limit ring and a support block. The turntable includes an outer swivel, an inner swivel and an adapter, and the adapter is connected to the outer swivel. As with the inner swivel, the first limit ring is fixed on the transfer part to abut the side of the carrier plate away from the outer swivel, the support block is fixed on the carrier plate and supports the outer swivel of the turntable, and the outer swivel is connected by The part drives the inner swivel to rotate to input a menu selection command to a circuit board; the pressing component includes a main body, a pressing block, an elastic body and a second limit ring, and the pressing block is fixed on the side of the main body facing the inner swivel and can move movably Running through the inner swivel, the elastic body is fixed on the side of the inner swivel facing the body to support the body, the second limit ring is fixed on the pressing block and abuts on the side of the inner swivel away from the body, the body is pressed and driven to press block against the board to confirm the menu. The present invention also provides an electronic device with a switch mechanism.

Description

Switch mechanism and electronic device having the same

technical field

The invention relates to a switch structure of an electronic device, in particular to a rotary switch mechanism and an electronic device with the switch mechanism.

Background technique

With the rapid development and progress of the electronic industry, various electronic products have been widely used in daily life, and provide users with more diverse functional options. The functional selection of these electronic products often requires the input and operation of commands through the peripheral switch mechanisms of the electronic products. At present, some switch mechanisms adopt a mode in which a turntable is matched with a confirmation key, and the confirmation key is independent of the turntable and is connected to the circuit board through a transition component. However, affected by the hole position of the circuit board and the accuracy of the switching components, the confirmation key is prone to shaking, and when the turntable rotates, the confirmation key is likely to interfere with the turntable, thereby reducing the stability factor of the switch mechanism.

SUMMARY OF THE INVENTION

In view of this, it is necessary to provide a switch mechanism with a high stability factor and an electronic device having the switch mechanism.

A switch mechanism includes a bearing plate, a rotating component and a pressing component, the pressing component is installed on the rotating component, the bearing plate is provided with a transfer hole, and the rotating component includes a turntable, a first limit ring and a support block, The turntable includes an outer swivel body, an inner swivel body and an adapting part, the adapting part connects the outer swivel body and the inner swivel body, and is rotatably received in the adapting hole, and the first limiting ring is sleeved on the The inner swivel is fixed on the adapter portion to abut against the side of the carrier plate away from the outer swivel, the support block is fixed on the carrier plate and elastically supports the outer swivel of the turntable, the inner swivel The side facing a circuit board is provided with a plurality of rotating feet at intervals along its outer edge, which are used for mutual matching with the dials of the circuit board. When the outer rotating body drives the inner rotating body to rotate through the adapter, the A plurality of turning feet can turn the dial in turn, and input corresponding menu selection instructions to the circuit board according to predetermined rules; the pressing component includes a main body, a pressing block, an elastic body and a second limit ring, and the pressing block is fixed on the circuit board. The side of the body facing the inner swivel body can movably penetrate through the inner swivel body, the elastic body is fixed on the side of the inner swivel body facing the body to elastically support the body, and the second limiting ring is fixed on the body on the pressing block and against the side of the inner swivel away from the main body, the main body can be pressed and drive the pressing block against the circuit board to confirm the menu.

An electronic device includes a casing, a circuit board and a switch mechanism, the circuit board is accommodated in the casing, an assembly hole is opened on the casing, and the switch mechanism is installed at the assembly hole, which includes a carrier board, A rotating component and a pressing component, the carrier board is mounted on the side of the casing facing the circuit board and corresponds to the mounting hole, the pressing component is mounted on the rotating component, the carrier board is provided with an adapter hole, the The rotating assembly includes a turntable, a first limit ring and a support block. The turntable includes an outer swivel, an inner swivel, and an adapter, and the adapter connects the outer swivel and the inner swivel, and is rotatably accommodated in the inner swivel. In the transfer hole, the first limiting ring is sleeved on the inner swivel body and fixed on the transfer part, so as to abut on the side of the carrier plate away from the outer swivel body, and the support block is fixed on the carrier board and elastically support the outer rotating body of the turntable, the inner rotating body facing the circuit board is provided with a plurality of rotating feet at intervals along its outer edge, the circuit board is provided with a dial at the position corresponding to the plurality of rotating feet, the When the outer swivel is accommodated in the assembly hole and drives the inner swivel to rotate through the adapter, the plurality of swivel feet can turn the dial in turn, and input corresponding menu selection commands to the circuit board according to predetermined rules ; The pressing component includes a main body, a pressing block, an elastic body and a second limiting ring, the pressing block is fixed on the side of the main body facing the inner swivel body and can movably penetrate through the inner swivel body, and the elastic body is fixed on the inner swivel body. The side of the inner swivel facing the body is elastically supported on the body, the second limiting ring is fixed on the pressing block, and abuts on the side of the inner swivel away from the body, the body can be pressed and drive the The pressure block is against the circuit board to confirm the menu.

The above-mentioned switch mechanism and electronic device are provided with support blocks on the bearing plate to assist in supporting the turntable and prevent the turntable from shaking during the rotation process, thereby improving the structural stability of the switch mechanism; at the same time, the inner rotating body of the turntable is fixed on the An elastic body is provided, and the elastic body elastically bears against the body of the pressing component, so that when the turntable rotates, the pressing component can rotate together with the turntable, so as to avoid the interference of the pressing component on the turntable, and further improve the stability factor of the switch mechanism.

Description of drawings

FIG. 1 is a schematic perspective view of an electronic device according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of a part of the electronic device shown in FIG. 1 .

FIG. 3 is a schematic exploded perspective view of the electronic device shown in FIG. 2 .

FIG. 4 is an exploded perspective view of the electronic device shown in FIG. 3 from another angle.

FIG. 5 is a cross-sectional view of the positioning device shown in FIG. 2 along the line V-V.

Description of main component symbols

The following specific embodiments will further illustrate the present invention in conjunction with the above drawings.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to another component or there may be an intervening component at the same time.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to FIG. 1 and FIG. 2 , the electronic device 100 provided by the present invention includes a casing 10 , a circuit board 20 and a switch mechanism 30 . The circuit board 20 is accommodated in the casing 10 , and the casing 10 is provided with an approximately circular assembly hole 11 , and the switch mechanism 30 is installed in the assembly hole 11 and connected to the circuit board 20 for supplying the circuit to the circuit board 20 . The panel 20 enters a menu selection command or confirms it.

The electronic device 100 in this embodiment is a portable music player, and the switch mechanism 30 is mainly used for menu selection or confirmation in the portable music player. It can be understood that the electronic device 100 of this embodiment should also include electrical components such as a memory chip, a voltage regulator, and an audio decoder installed in the housing 10 , so as to facilitate the realization of storage, voltage regulation and audio frequency of the electronic device 100 . Functions such as conversion are not repeated here in order to save space.

Please refer to FIGS. 2 to 5 at the same time. In this embodiment, one contact piece 21 and two toggle blocks 22 are disposed on the circuit board 20 , and the two toggle blocks 22 are symmetrically arranged on both sides of the contact piece 21 . The switch mechanism 30 cooperates with the contact piece 21 and the dial 22 respectively to select or confirm the menu.

The switch mechanism 30 includes a bearing plate 31 , a rotating component 32 and a pressing component 33 . The bearing plate 31 is fixedly connected to the casing 10 , the rotating component 32 is rotatably installed on the bearing plate 31 , and the pressing component 33 is movably installed. on the rotating assembly 32 . Specifically, the carrier plate 31 is substantially annular, and the outer diameter of the carrier plate 31 is slightly larger than the diameter of the mounting hole 11 of the housing 10 , so that the outer edge of the carrier plate 31 can be attached to the side of the housing 10 facing the circuit board 20 . .

In the present embodiment, an adapter hole 311 is formed at an approximate center position of the carrier plate 31 . The rotating assembly 32 includes a turntable 321 , a rotating touch piece 322 , a first limiting ring 323 and a support block 324 . The turntable 321 includes an outer swivel 3211 , an inner swivel 3212 and an adapter 3213 . The adapter part 3213 connects the outer swivel 3211 and the inner swivel 3212 . The adapter portion 3213 is substantially annular, and its outer diameter matches the diameter of the adapter hole 311 , so that the adapter portion 3213 is rotatably received in the adapter hole 311 . The outer swivels 3211 are generally in the shape of a circular ring plate, and the outer diameter of the outer swivel 3211 matches the diameter of the mounting hole 11 of the housing 10 , so that the outer swivel 3211 can be rotatably accommodated in the mounting hole 11 , and is carried on the top of the carrier plate 31 .

The inner swivel 3212 has a generally annular plate-like structure, and the outer diameter of the inner swivel 3212 is slightly larger than the inner diameter of the outer swivel 3211 , so as to facilitate the connecting portion 3213 to connect the outer swivel 3211 and the inner swivel 3212 . The inner swivel 3212 is recessed relative to the side of the outer swivel 3211 facing the circuit board 20 , and the outer swivel 3211 and the inner swivel 3212 are parallel to each other.

The first limiting ring 323 is sleeved on the outer peripheral side wall of the inner rotating body 3212 and is fixedly connected to the adapter portion 3213 . The outer edge of the first limiting ring 323 protrudes outward from the adapter portion 3213 , and abuts against the side of the carrier plate 31 facing away from the outer swivel 3211 , so as to cooperate with the outer swivel 3211 to limit the adapter portion 3213 to the carrier In the transfer hole 311 of the board 31 , the turntable 321 is rotatably and stably installed on the carrier board 31 .

The side of the inner rotating body 3212 facing the circuit board 20 is provided with a plurality of rotating feet 3215 at intervals along the outer edge thereof, so that when the turntable 321 is rotated, the plurality of rotating feet 3215 turn the two dials 22 on the circuit board 20 in turn, and then rotate. Corresponding menu selection commands are input to the circuit board 20 according to predetermined rules. A through hole 3216 is formed in the approximate center of the inner rotating body 3212 , so that the pressing component 33 can pass through the through hole 3216 and contact the circuit board 20 .

In this embodiment, retaining rings 3217 are respectively protruded along the outer edge and the inner edge of the outer rotating body 3211 facing away from the support plate 31 . The rotating touch piece 322 is substantially annular, and the rotating touch piece 322 is attached to the side of the outer rotating body 3211 away from the carrier plate 31 , and is accommodated between the two retaining rings 3217 . Preferably, the rotating touch sheet 322 is made of metal or glass material, but is not limited thereto. In this embodiment, the side of the rotating touch piece 322 facing away from the outer rotating body 3211 is provided with a CD pattern (not shown), so as to improve the user's touch feeling on the rotating touch piece 322 .

An annular groove 312 is defined on the side of the carrier board 31 facing away from the circuit board 20 and corresponding to the position of the outer rotating body 3211 . The support block 324 is fixed on the bottom of the annular groove 312 for elastically supporting the outer rotating body 3211 and preventing the outer rotating body 3211 from shaking during the rotation. In this embodiment, the support block 324 is substantially annular, and its outer diameter is slightly smaller than the outer diameter of the annular groove 312 , so that the support block 324 is accommodated in the annular groove 312 and stably supported on the outer rotating body 3211 . .

Preferably, the support block 324 is a foam. Since the foam itself has elastic properties, when the user manually rotates the rotating touch piece 322, the friction force between the user's finger and the rotating touch piece 322 can be increased, which further facilitates the rotation of the outer rotating body 3211 by fingers. The user generally needs to press the rotating touch piece 322 toward the direction of the carrier plate 31 when the user rotates the rotating touch piece 322. At this time, the support block 324 is pressed and deformed. At the same time, the elastic restoring force of the support block 324 is further fed back to the user. so as to effectively improve the hand feel.

It can be understood that a layer of Teflon (not shown) is formed on the side of the support block 324 facing the outer rotating body 3211, and the Teflon layer is made of polytetrafluoroethylene (PTFE) to strengthen the support block 324 wear resistance, but not limited to this.

In this embodiment, an annular protrusion 3218 is protruded from the side of the outer rotating body 3211 facing the carrying plate 31 . The thickness of the annular protrusion 3218 is slightly smaller than the thickness of the support block 324 , so that the support block 324 is supported between the bearing plate 31 and the outer rotating body 3211 under normal conditions, and a gap is formed between the annular protrusion 3218 and the bearing plate 31 . A gap (not shown) provides the user with a maximum pressing range on the outer swivel 3211 , thereby preventing the user from over-pressing the outer swivel 3211 and causing the turntable 321 to tilt excessively, further improving the rotational stability of the turntable 321 .

The pressing component 33 includes a main body 331 , a pressing block 332 , an elastic body 333 , a second limiting ring 334 and a pressing touch piece 335 . The body 331 is substantially in the shape of a circular plate, and its outer diameter matches the inner diameter of the adapter portion 3213 , so that the body 331 moves relative to the adapter portion 3213 and toward the inner rotating body 3212 .

The pressing block 332 is substantially cylindrical, and is vertically fixed at an approximate central position of the side of the main body 331 facing the inner rotating body 3212 . In this embodiment, the outer diameter of the pressing block 332 matches the diameter of the through hole 3216 , so that the pressing block 332 can move up and down in the through hole 3216 . A contact 3321 is protruded from the side of the pressing block 332 away from the body 331 . The contact 3321 abuts against the contact piece 21 on the circuit board 20 to confirm the menu selected by the rotating component 32 .

The elastic body 333 is substantially annular, and is fixed on the side of the inner rotating body 3212 facing the main body 331 for elastically supporting the main body 331 . In this embodiment, the elastic body 333 is foam, but it is not limited to this.

The second limiting ring 334 is substantially annular, and is sleeved on the contact 3321 and fixed on the side of the pressing block 332 facing away from the body 331 . The outer edge of the second limiting ring 334 protrudes outward from the pressing block 332 and abuts against the side of the inner rotating body 3212 facing the circuit board 20 to prevent the pressing block 332 from coming out of the through hole 3216 .

The pressing touch sheet 335 is attached to the side of the main body 331 away from the pressing block 332 . In this embodiment, the pressing touch piece 335 is approximately circular and matches the size of the main body 331 , so that the pressing touch piece 335 completely covers the main body 331 and enhances the aesthetic effect of the switch mechanism 30 . A CD pattern (not shown) is provided on the side of the pressing touch sheet 335 away from the main body 331 , so as to improve the user's pressing feeling on the pressing touch sheet 335 . Preferably, the pressing touch sheet 335 is made of glass material, but is not limited thereto.

When in use, the user drives the turntable 321 and the pressing component 33 to rotate together by turning the rotating touch sheet 322, and makes the plurality of turning feet 3215 on the turntable 321 turn the two dials 22 on the circuit board 20 in turn to move toward the The circuit board 20 inputs corresponding menu selection commands. Then, the user stops turning and rotating the touch piece 322, and presses the pressing touch piece 335 toward the direction of the circuit board 20, and the contact 3321 on the pressing block 332 abuts against the contact piece 21 on the circuit board 20, so as to align the turntable 321 Select the menu to confirm.

It can be understood that the support block 324 and the elastic body 333 are not limited to the annular overall structure in this embodiment. In other embodiments, there may be multiple support blocks 324 and elastic bodies 333, and the multiple support blocks 324 are spaced apart A plurality of elastic bodies 333 are arranged at intervals and arranged on the inner rotating body 3212 of the turntable 321 in an annular shape for elastically resisting the turntable 321. Hold the body 331 of the pressing component 33 .

It can be understood that the setting of the rotating touch sheet 322 can be omitted, that is, the user directly turns the outer rotating body 3211 of the turntable 321 to rotate the turntable 321; In order to make the contacts 3321 on the pressing block 332 abut against the circuit board 20 .

It can be understood that the rotating feet 3215 and the contacts 3321 can also be replaced by other contact elements (not shown), as long as the inner rotating body 3212 and the pressing block 332 can respectively input commands to the circuit board 20 through the contact elements.

It can be understood that the number of the dials 22 is not limited to two, and may also be one or more than two. But not limited to this.

It can be understood that, in other embodiments, the annular protrusion 3218 can also be replaced by a plurality of protrusion units (not shown in the figure), and the plurality of protrusion units are spaced apart and arranged in a ring shape on the outer rotating body 3211 The side facing the carrier plate 31 .

The switch mechanism 30 provided by the present invention and the electronic device 100 using the switch mechanism 30 are provided with a support block 324 on the carrier plate 31 to assist in supporting the turntable 321 and prevent the turntable 321 from shaking during the rotation process, thereby improving the performance of the switch mechanism 30 . The structural stability of the switch mechanism 30; at the same time, an elastic body 333 is fixed on the inner rotating body 3212 of the turntable 321, and the elastic body 333 elastically presses against the body 331 of the pressing component 33, so that when the turntable 321 rotates, the pressing The assembly 33 can rotate together with the turntable 321 , so as to avoid interference of the pressing assembly 33 with the turntable 321 , and further improve the stability factor of the switch mechanism 30 .

Those skilled in the art should realize that the above embodiments are only used to illustrate the present invention, but not to limit the present invention. As long as the above embodiments are within the spirit and scope of the present invention, the above embodiments can be appropriately Variations and variations fall within the scope of the claimed invention.

Claims (8)

1. The utility model provides a switch mechanism, includes loading board, runner assembly and presses the subassembly, its characterized in that: the pressing component is arranged on the rotating component, the bearing plate is provided with a switching hole, the rotating component comprises a rotating disc, a first limiting ring and a supporting block, the turntable comprises an outer rotating body, an inner rotating body and a switching part, the switching part is connected with the outer rotating body and the inner rotating body and can be rotatably accommodated in the switching hole, the first limiting ring is sleeved on the inner rotating body and fixed on the adapter part so as to abut against one surface of the bearing plate departing from the outer rotating body, the supporting block is fixed on the bearing plate and elastically supports the outer rotating body of the turntable, a plurality of rotating pins are arranged at intervals along the outer edge of one surface of the inner rotating body facing a circuit board and are used for being matched with the shifting block of the circuit board, when the outer rotor drives the inner rotor to rotate through the switching part, the plurality of rotating legs can sequentially shift the shifting block and input corresponding menu selection instructions to the circuit board according to preset rules; the pressing assembly comprises a body, a pressing block, an elastic body and a second limiting ring, wherein the pressing block is fixed on one surface of the body facing the inner rotating body and movably penetrates through the inner rotating body, the elastic body is fixed on one surface of the inner rotating body facing the body and elastically supports the body, the second limiting ring is fixed on the pressing block and supports against one surface of the inner rotating body deviating from the body, and the body can be pressed and drives the pressing block to abut against the circuit board to confirm the menu.

2. The switch mechanism of claim 1, wherein: an annular bulge is convexly arranged on one surface of the outer rotor facing the bearing plate, so that when the supporting block is excessively pressed, the annular bulge can be abutted against the bearing plate.

3. The switch mechanism of claim 1, wherein: the rotating assembly further comprises a rotating touch moon, wherein the outer rotating body is deviated from one surface of the bearing plate, and retaining rings are respectively arranged on the outer edge and the inner edge of the outer rotating body in a protruding mode, and the rotating touch moon is attached to the surface, deviated from the bearing plate, of the outer rotating body and is contained between the two retaining rings.

4. The switch mechanism of claim 1, wherein: the inner rotary body is provided with a through hole, the press block penetrates through the through hole, one surface of the press block, which is far away from the body, is convexly provided with a contact, the position of the circuit board, which corresponds to the contact, is provided with a touch moon, and the contact is abutted against the touch moon to confirm the menu.

5. The switch mechanism of claim 1, wherein: the pressing assembly further comprises a pressing touch month, and the pressing touch month is attached to one surface of the body, which deviates from the pressing block.

6. The switch mechanism of claim 1, wherein: the bearing plate is provided with an annular groove at a position corresponding to the outer rotor and deviating from one surface of the circuit board, and the supporting block is fixed at the bottom of the annular groove to elastically support the outer rotor.

7. The utility model provides an electronic device, includes casing, circuit board and switching mechanism, and this circuit board is acceptd in this casing, has seted up the pilot hole on this casing, and this switching mechanism dress is located this pilot hole department, and it includes loading board, rotating assembly and presses the subassembly, and this loading board is adorned in this casing one side towards this circuit board and corresponding with this pilot hole, its characterized in that: the pressing component is arranged on the rotating component, the bearing plate is provided with a switching hole, the rotating component comprises a rotating disc, a first limiting ring and a supporting block, the turntable comprises an outer rotating body, an inner rotating body and a switching part, the switching part is connected with the outer rotating body and the inner rotating body and can be rotatably accommodated in the switching hole, the first limiting ring is sleeved on the inner rotating body and fixed on the adapter part so as to abut against one surface of the bearing plate departing from the outer rotating body, the supporting block is fixed on the bearing plate and elastically supports the outer rotating body of the turntable, a plurality of rotating pins are arranged at intervals along the outer edge of one surface of the inner rotating body facing the circuit board, the circuit board is provided with a shifting block corresponding to the positions of the plurality of rotating pins, when the outer rotating body is accommodated in the assembling hole and drives the inner rotating body to rotate through the switching part, the plurality of the rotating legs can sequentially stir the shifting block and input corresponding menu selection instructions to the circuit board according to preset rules; the pressing assembly comprises a body, a pressing block, an elastic body and a second limiting ring, wherein the pressing block is fixed on one surface of the body facing the inner rotating body and movably penetrates through the inner rotating body, the elastic body is fixed on one surface of the inner rotating body facing the body and elastically supports the body, the second limiting ring is fixed on the pressing block and supports against one surface of the inner rotating body deviating from the body, and the body can be pressed and drives the pressing block to abut against the circuit board so as to confirm the menu.

8. The electronic device of claim 7, wherein: one surface of the pressing block, which is far away from the body, is convexly provided with a contact, the position of the circuit board, which corresponds to the contact, is provided with a touch moon, and the contact props against the touch moon so as to confirm the menu.

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