WO2018010237A1 - Operating key structure and mobile terminal device having same - Google Patents

Abstract

An operating key structure and a mobile terminal device having the same, the operation key structure comprising a housing (20) and a keycap (10) which is penetratingly arranged on the housing (20); the keycap (10) is mounted on the housing (20) in such a way that the keycap may rotate about and move along an axis thereof. The operating key structure further includes: a first switch assembly (30), which is disposed opposite to the keycap (10), wherein the first switch assembly (30) is turned on and off by means of the keycap (10) moving along the axis thereof; a second switch assembly (40), which is in driving connection with the keycap (10), wherein the second switch assembly (40) is turned on and off by means of the keycap (10) rotating about the axis thereof. The present operation key structure solves the mono-functional problem found in operation key structures in the prior art.

Description

Operation key structure and mobile terminal device therewith Technical field

The present invention relates to the field of projection devices, and in particular to an operation key structure and a mobile terminal device having the same.

Background technique

Smart watches have gradually become popular digital products. In the traditional smart watch design, as shown in Figure 1 and Figure 2, the operation key structure mainly includes: key cap 1, silicone ring 2, side key switch 3 and plug spring 4, etc. The key cap 1 is disposed on the mounting hole of the dial 5, and the silicone ring 2 is located between the side wall of the keycap 1 and the mounting hole of the dial 5 to protect the card. The plug spring 4 is inserted into the card slot of the head end of the key cap 1. The middle keycap 1 is snapped onto the dial 5 to prevent the keycap 1 from falling off, and the side key switch 3 is patched on the PCB board or the FPC board, thereby realizing electrical signal transmission.

When the keycap 1 is pressed, the side key switch 3 is engaged with the corresponding contact on the PCB board or the FPC board, and the electrical signal is turned on; when the keycap 1 is released, the side key switch 3 and the corresponding touch on the PCB board or the FPC board The points are separated and the electrical signal is cut off.

However, the operation key structure occupies a large amount of space in the dial 5, and can only realize the function of long-pressing the switch machine and short-pressing confirmation by pressing the keycap 1, the function is relatively simple, and the function utilization rate is not high.

Summary of the invention

A main object of the embodiments of the present invention is to provide an operation key structure and a mobile terminal device having the same, which solves the problem that the function of the operation key structure in the prior art is relatively simple.

In order to achieve the above object, according to an embodiment of the present invention, an operation key structure is provided, including a housing and a key cap penetrating the housing, the keycap being rotatably and movably about its axis The first key assembly further includes: a first switch assembly, the key cap is disposed opposite to the first switch assembly, and the first switch assembly is turned on or off when the key cap moves along the axis thereof; the second switch The assembly, the keycap is in driving connection with the second switch assembly to turn the second switch assembly on or off as the keycap rotates about its axis.

Further, the first switch assembly includes: a micro switch disposed opposite to the end of the key cap, and the end of the key cap abuts the micro switch when the key cap moves in the first direction along the axial direction thereof a switch assembly is conductive; the head of the keycap is separated from the microswitch to disconnect the first switch assembly when the keycap moves in the second direction thereof; wherein the first direction and the second direction are opposite The direction.

Further, the first switch component further includes: an FPC board, and the micro switch is disposed on the FPC board.

Further, the second switch assembly includes: a travel switch, the key cap is drivingly coupled to the travel switch, and the key cap is rotated about its axis to turn the travel switch on or off.

Further, the second switch assembly further includes: a rotating wheel, the key cap and the rotating wheel drive connection; the contact can be extended or retracted on the travel switch, the contact is in contact with the rotating wheel, and the rotating wheel drives the touch The head is extended or retracted; wherein, when the contact is retracted, the travel switch is turned on; when the contact is extended, the travel switch is turned off.

Further, the rotating wheel is provided with a first gear, and the end of the key cap is provided with a second gear that meshes with the first gear, and the key cap drives the rotating wheel through the first gear and the second gear that mesh with each other.

Further, the end surface of the runner is provided with a receiving groove matched with the contact. As the rotating wheel rotates, the contact extends out of the travel switch to enter the receiving groove or the contact is pushed out of the receiving groove to retract into the travel switch.

Further, the second switch component includes: a Hall device, the Hall device is disposed in the housing and spaced apart from the key cap; the magnet block is disposed on the key cap and is between the key cap and the Hall device A Hall effect occurs to control the on and off of electrical signals.

Further, the head of the keycap is provided with a turntable, and the magnet block is disposed away from the axis of the turntable.

Further, a mounting hole is disposed on the sidewall of the housing, and the key cap is disposed in the mounting hole.

Further, a waterproof ring is disposed between the outer wall of the keycap and the inner wall of the mounting hole.

Further, the outer wall of the key cap is provided with a first annular groove, and the inner wall of the mounting hole is provided with a second annular groove corresponding to the first annular groove, and the waterproof ring is disposed on the first annular groove and the second ring Inside the groove.

According to another embodiment of the present invention, there is provided a mobile terminal device comprising: an operation key structure, the operation key structure being the operation key structure described above.

The operation key structure of the technical solution of the embodiment of the present invention includes: a key cap, a first switch component and a second switch component, wherein the key cap is rotatable around the circumference thereof and is movably disposed on the casing along the axial direction thereof The first switch assembly is disposed opposite to the key cap, and the first switch assembly is turned on when the key cap moves from the first preset position to the second preset position along the axial direction thereof; the key cap is second preset along the axial direction thereof The first switch component is disconnected when the position returns to the first preset position; the second switch component is turned on when the second switch component key cap is rotated circumferentially to the third preset position; the key cap is rotated around the circumference thereof to The second switch assembly is disconnected when the fourth preset position is reached. In this way, the key cap can realize the corresponding operation function when pressing, and can also realize the corresponding function when rotating, solving the problem that the operation key structure function in the prior art is single, and effectively improving the function of the operation key structure. Utilization rate.

DRAWINGS

The accompanying drawings, which are incorporated in the claims of the claims In the drawing:

Figure 1 is a schematic view showing the disassembled structure of the prior operation key structure;

2 is a schematic cross-sectional structural view of a conventional operation key structure;

3 is a schematic diagram of a disassembled structure of an operation key structure according to an embodiment of the present invention;

4 is a schematic structural diagram of a first switch component of an operation key structure according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a second switch component of an operation key structure according to an embodiment of the present invention; FIG.

6 is a schematic structural diagram of an open state of a second switch component of an operation key structure according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an ON state of a second switch component of an operation key structure according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic diagram of a disassembled structure of another operation key structure according to an embodiment of the present invention.

Wherein, the above figures include the following reference numerals:

1, key cap; 2, silicone ring; 3, side key switch; 4, plug spring; 5, dial; 10, key cap; 11, second gear; 20, housing; 30, the first switch component; Micro switch; 32, FPC board; 40, second switch assembly; 41, travel switch; 42, runner; 43, contact; 44, first gear; 45, receiving slot; 46, Hall device; Magnet block; 48, turntable; 50, waterproof ring.

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.

The present invention provides an operation key structure. Referring to Figures 3 to 8, the operation key assembly includes a housing 20 and a key cap 10 disposed on the housing 20, the keycap 10 being rotatably and along the axis thereof The axis is movably disposed on the housing 20, and the operation key structure further includes: a first switch assembly 30, the key cap 10 is disposed opposite to the first switch assembly 30, and the first switch is made when the keycap 10 moves along the axis thereof The assembly 30 is turned on or off; the second switch assembly 40, the keycap 10 is drivingly coupled to the second switch assembly 40 to turn the second switch assembly 40 on or off as the keycap 10 is rotated about its axis.

According to the operation key structure of the technical solution of the present invention, the operating member structure includes: a key cap 10, a first switch assembly 30 and a second switch assembly 40, and the keycap 10 is rotatable about the circumference thereof and movable along the axial direction thereof Disposed on the housing 20; the first switch assembly 30 is disposed opposite to the keycap 10, and the first switch assembly 30 is turned on when the keycap 10 is moved from the first preset position to the second preset position in the axial direction thereof; The first switch assembly 30 is disconnected when the cap 10 returns to the first preset position from the second predetermined position in its axial direction; the second switch assembly 40 will rotate when the keycap 10 is rotated circumferentially to the third predetermined position The second switch assembly 40 is turned on; the key switch 10 is rotated about its circumferential direction to the fourth predetermined position to disconnect the second switch assembly 40. In this way, the keycap 10 can realize the corresponding operation function when pressed, and can also realize the corresponding function when rotating, and solves the problem that the operation key structure has a single function in the prior art, and effectively improves the structure of the operation key. Functional utilization.

In the present embodiment, as shown in FIG. 4, the first switch assembly 30 includes: a micro switch 31 disposed opposite to the end of the keycap 10, when the keycap 10 moves in the first direction along its axial direction, When moving toward the inner side of the housing 20, the end of the keycap 10 abuts the micro switch 31 to conduct the first switch assembly 30; when the keycap 10 moves in the second direction along its axial direction, ie toward the shell When the outer side of the body 20 is moved, the head of the keycap 10 is separated from the microswitch 31 to disconnect the first switch assembly 30.

With the above structure, when the push keycap 10 is moved from the first preset position to the second preset position in the axial direction thereof, the first switch assembly 30 can be pushed to be turned on; when the push key cap 10 is driven along the axial direction thereof When the two preset positions return to the first preset position, the first switch assembly 30 can be released to be disconnected.

Specifically, the first switch assembly 30 further includes: an FPC board 32, and the micro switch 31 is disposed on the FPC board.

The second switch assembly 40 in the present invention may have a different manner. As a first embodiment of the present invention, as shown in FIGS. 5 to 6, the second switch assembly 40 includes: a travel switch 41, a keycap 10 and a stroke. The switch 41 is drivingly coupled and the keycap 10 is rotated about its axis to cause the limit switch 41 to be turned on or off.

In the present embodiment, the second switch assembly 40 further includes a runner 42 that is drivingly coupled to the runner 42. The contact 43 is extendable or retractably disposed on the travel switch 41. The runner 42 contacts and drives the contact 43 to extend or retract when the runner 42 rotates; wherein, when the contact 43 is retracted, the travel switch 41 is turned on; when the contact 43 is extended, the travel switch 41 is turned off.

It can be seen that in the present embodiment, by engaging the runner 42 with the contact 43, the contact switch 43 is turned on or off by extending and retracting the contact 43.

In order to realize the transmission connection between the runner 42 and the keycap 10, the runner 42 is provided with a first gear 44, and the end of the keycap 10 is provided with a second gear 11 meshing with the first gear 44, and the keycap 10 The rotor 42 is driven to rotate by the first gear 44 and the second gear 11 that mesh with each other.

In order to realize the driving of the contact 43 by the runner 42, the end face of the runner 42 is provided with a receiving groove 45 matching the contact 43. With the rotation of the runner 42, the contact 43 extends out of the travel switch 41 to enter the receiving groove 45. The inner or contact 43 is pushed out of the receiving groove 45 to retract into the travel switch 41.

In the present embodiment, the second gear 11 and the keycap 10 are fixed together by interference, and the second gear 11 is fixed to the dial (housing) by pins. The first switch component 30 is in the form of a push micro switch. The patch is on the FPC and is fastened to the motherboard PCB through the connector. The second switch component 40 is a push handle switch and is directly mounted on the motherboard PCB.

As another embodiment of the present invention, as shown in FIG. 8, the second switch assembly 40 includes: a Hall device 46 disposed in the housing 20 and spaced apart from the keycap 10 by a certain distance; 47. The magnet block 47 is disposed on the keycap 10, and a Hall effect occurs between the keycap 10 and the Hall device 46 to control the on and off of the electrical signal. The distance between the Hall device 46 and the keycap 10 is mainly set according to the magnetic size of the magnet block 47 and the sensing capability of the Hall device 46 while considering the size of the space inside the casing 20.

It can be seen that the present embodiment utilizes the Hall effect to achieve conduction or disconnection of the second switch assembly 40.

In order to ensure that a Hall effect can occur between the magnet block 47 and the Hall device 46, the head of the keycap 10 is provided with a turntable 48 which is disposed away from the axis of the turntable 48. Among them, the Hall device 46 is disposed on one side of the turntable 48 along the axis of the turntable 48.

In order to achieve the mounting of the keycap 10, a mounting hole is provided in the side wall of the housing 20, and the keycap 10 is disposed in the mounting hole.

In the present embodiment, a waterproof ring 50 is disposed between the outer wall of the keycap 10 and the inner wall of the mounting hole. By providing the waterproof ring 50, the seal between the keycap 10 and the inner wall of the mounting hole can be ensured, preventing water leakage from the gap between the two.

In order to facilitate the installation of the waterproof ring 50, the outer wall of the keycap 10 is provided with a first annular groove, and the inner wall of the mounting hole is provided with a second annular groove corresponding to the first annular groove, and the waterproof ring 50 is disposed at the first Inside the annular groove and the second annular groove. In this way, the installation of the waterproof ring 50 can be achieved relatively conveniently.

The embodiment further provides a mobile terminal device, comprising: an operation key structure, and the operation key structure is the operation key structure described above. Preferably, the mobile terminal device is a watch.

With the mobile terminal device in this embodiment, when the keycap is pressed, the force is transmitted to the push-type switch, and the long-pressing switch and the single-press confirmation function are realized, and the waterproof performance of the watch is realized by the silicone ring.

When the keycap is rotated, the force is transmitted to the other handle switch through two gear transmissions. Under normal conditions, the side key switch is compressed by the gear plane and is always in the on state. When rotating a certain angle, the side key switch The handle is inserted into the slot of the gear and the switch is turned off. Through these two states, control of the electrical signal is achieved.

The above pressing and rotating can realize a combination of various functions. For example, when the power button is rotated, different menus can be switched in the UI interface, and the button is pressed to confirm that the menu enters the secondary interface.

Implementation of the press function:

As shown in FIG. 4, the inside of the keycap 10 is grooved, and the silicone ring is placed in the slot, and the silicone ring interferes with the sidewall of the dial opening to realize the waterproof function. During operation, the key cap is pressed, and the silicone ring follows the key cap to slide in the opening of the dial, and the force of the key cap is transmitted to the first switch assembly 30 to realize communication and disconnection of electrical signals.

Implementation of the rotation function:

As shown in FIG. 5, the keycap is fixed to the second gear 11, and when the keycap is rotated, the gear is rotated together, and the first gear 44 follows the second gear 11 to generate an meshing motion.

As shown in FIG. 6, during the rotation of the first gear 44, at a certain angle, the switch handle (contact 43) is compressed under the end face of the runner, that is, the ON state in the electrical signal. At a certain angle, the switch handle is in the gear slot, that is, the electrical signal is disconnected.

Generally, the key cap is made of stainless steel, and the surface is pressed or shaped to increase the friction between the finger and the side key, thereby increasing the user experience. In the process of rotating the keycap, the overall feel is better due to a certain force between the gears.

In this embodiment, on the basis of the conventional scheme, the rotation function is added, and a new function is added for the smart watch power-on key, and the function is combined with the pressing function, and different functions can be combined.

In the above embodiment, the geared compression side key switch scheme is adopted, and after the modification, the Hall effect (referring to a physical phenomenon in which a magnetic field acts on a current carrying metal conductor or a carrier in a semiconductor to generate a lateral potential difference) can be realized. This function is described as follows:

As shown in Fig. 8, on the basis of the above scheme, the turntable structure is directly used to open a hole in the turntable to fix a magnet. When the turntable rotates by about 180 degrees and the magnet is separated from the Hall device by a certain distance, a lateral potential difference is generated. The same effect as the above embodiment can be achieved by turning on and off the electric signal.

However, this scheme has certain disadvantages. The Hall device and the magnet can generate a potential difference after a certain distance, thereby controlling the turning on and off of the electrical signal, but the distance requirement is relatively long, which will increase the overall size of the watch, and will be subject to Other magnetic components such as speakers, receivers, and motors.

The invention provides a rotary side key solution on the basis of the conventional pressing side key, realizes the opening and closing control of the side key switch by using the gear transmission, realizes the rotating side key function, and combines with the pressing action to realize the smart watch. Different functions, such as switching interfaces. Moreover, between the key cap and the dial, the silicone ring is used for interference fit to achieve waterproof function.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

According to the technical solution of the embodiment of the present invention, the operation key structure includes: a key cap, a first switch component, and a second switch component, wherein the key cap is rotatably circumferentially movable and axially movable on the housing; The first switch assembly is disposed opposite to the key cap, and the first switch assembly is turned on when the key cap moves from the first preset position to the second preset position in the axial direction thereof; the key cap is in the second preset position along the axial direction thereof Returning to the first preset position to disconnect the first switch assembly; when the second switch assembly key cap is rotated circumferentially to the third preset position, the second switch assembly is turned on; the key cap is rotated around the circumference thereof to the first The second switch assembly is disconnected when the four preset positions are reached. In this way, the key cap can realize the corresponding operation function when pressing, and can also realize the corresponding function when rotating, solving the problem that the operation key structure function in the prior art is single, and effectively improving the function of the operation key structure. Utilization rate.

Claims (13)

An operation key structure comprising a housing (20) and a keycap (10) piercing the housing (20), the keycap (10) being rotatably movable about its axis and movable along its axis The grounding member is disposed on the housing (20), and the operation key structure further includes: a first switch assembly (30), the key cap (10) being disposed opposite the first switch assembly (30), the first switch assembly (30) being moved as the keycap (10) moves along its axis ) turned on or off; a second switch assembly (40), the keycap (10) is drivingly coupled to the second switch assembly (40), and the second switch assembly (40) when the keycap (10) is rotated about its axis ) Turn on or off. The operation key structure of claim 1, wherein the first switch component (30) comprises: a micro switch (31) disposed opposite the end of the keycap (10), the end of the keycap (10) when the keycap (10) moves in a first direction along its axial direction Abutting the microswitch (31) to conduct the first switch assembly (30); the keycap (10) when the keycap (10) moves in a second direction along its axial direction a head separated from the microswitch (31) to disconnect the first switch assembly (30); Wherein the first direction and the second direction are opposite directions. The operation key structure according to claim 2, wherein the first switch component (30) further comprises: An FPC board (32), the micro switch (31) is disposed on the FPC board. The operation key structure of claim 1, wherein the second switch assembly (40) comprises: A trip switch (41), the keycap (10) is drivingly coupled to the travel switch (41), and the keycap (10) is rotated about its axis to turn the travel switch (41) on or off. The operation key structure according to claim 4, wherein the second switch component (40) further comprises: a runner (42), the keycap (10) is drivingly coupled to the runner (42); a contact (43) that is extendable or retractably disposed on the travel switch (41), the contact (43) is in contact with the runner (42), and the runner (42) is rotated Driving the contact (43) to extend or retract; Wherein, when the contact (43) is retracted, the travel switch (41) is turned on; when the contact (43) is extended, the travel switch (41) is turned off. The operation key structure according to claim 5, wherein the rotating wheel (42) is provided with a first gear (44), and an end of the keycap (10) is provided with the first gear (44) a second gear (11) that engages, and the keycap (10) drives the wheel (42) to rotate by the first gear (44) and the second gear (11) that mesh with each other. The operation key structure according to claim 5, wherein an end surface of the rotating wheel (42) is provided with a receiving groove (45) matching the contact (43), with the rotating wheel (42) Rotating, the contact (43) extends out of the travel switch (41) to enter the receiving groove (45) or the contact (43) is pushed out of the receiving groove (45) to retract the Inside the travel switch (41). The operation key structure of claim 1, wherein the second switch assembly (40) comprises: a Hall device (46), the Hall device (46) being disposed in the housing (20) and spaced apart from the keycap (10); a magnet block (47), the magnet block (47) is disposed on the keycap (10), and a Hall effect occurs between the keycap (10) and the Hall device (46) To control the on and off of electrical signals. The operation key structure according to claim 8, wherein a head of the keycap (10) is provided with a turntable (48), and the magnet block (47) is disposed away from an axis of the turntable (48). The operation key structure according to claim 1, wherein a mounting hole is provided in a side wall of the casing (20), and the keycap (10) is disposed in the mounting hole. The operation key structure according to claim 10, wherein a waterproof ring (50) is provided between an outer wall of the keycap (10) and an inner wall of the mounting hole. The operation key structure according to claim 11, wherein the outer wall of the keycap (10) is provided with a first annular groove, and the inner wall of the mounting hole is provided with a corresponding to the first annular groove a second annular groove, the waterproof ring (50) being disposed in the first annular groove and the second annular groove. A mobile terminal device comprising: an operation key structure, the operation key structure being the operation key structure according to any one of claims 1 to 12.

Images