CN216250488U - Key mechanism and terminal equipment - Google Patents

Abstract

The application provides a key mechanism and terminal equipment, belongs to mechanical button technical field, and this key mechanism can be used for adjusting audio frequency or video's broadcast volume. The key mechanism comprises a fixed frame, a key, a switch, a push block and a driving component; the fixed frame is provided with a key hole, the key is positioned in the key hole, the switch, the push block and the driving assembly are all positioned in the fixed frame, the switch and the key are opposite in position, and the push block is connected with the driving assembly; when the driving assembly drives the push block to move to the first position, the key is accommodated in the key hole, and when the driving assembly drives the push block to move to the second position, the key extends out of the key hole. By adopting the key, when the key needs to be operated, the driving assembly can be controlled to drive the push block to move towards a certain direction, so that the key extends out of the key hole, and when the key does not need to be operated, the driving assembly can be controlled to drive the push block to move towards the other direction, so that the key is contained in the key hole, and the key is prevented from being scratched and mistakenly touched.

Description

Key mechanism and terminal equipment

Technical Field

The application relates to the technical field of mechanical keys, in particular to a key mechanism and a terminal device.

Background

The side of the fixed frame of a terminal device, such as a mobile phone and a tablet computer, is usually installed with some mechanical keys, such as a game key, a power key and a volume key, which are mostly protruded out of the outer surface of the fixed frame for users to press conveniently.

However, the mechanical keys protrude out of the outer surface of the fixing frame, so that not only can hands be scraped, but also the situation of mistaken touch is easy to occur.

SUMMERY OF THE UTILITY MODEL

The application provides a key mechanism and a terminal device, which can overcome the problems of the related art. The technical scheme is as follows:

on one hand, the application provides a key mechanism which comprises a fixed frame, a key, a switch, a push block and a driving assembly;

the fixed frame is provided with a key hole, the key is positioned in the key hole, the switch, the push block and the driving assembly are all positioned in the fixed frame, the switch and the key are opposite in position, and the push block is connected with the driving assembly;

when the driving assembly drives the push block to move to the first position, the key is accommodated in the key hole, and when the driving assembly drives the push block to move to the second position, the key extends out of the key hole.

In a possible embodiment, the push block is located between the key and the switch, and the push block is movable relative to the drive assembly in a pressing direction along the key;

the push block comprises a low-lying part and a convex part, and the thickness of the push block is gradually increased from the low-lying part to the convex part;

when the push block moves to the first position, the position of the low-lying part is opposite to the position of the key, and when the push block moves to the second position, the position of the convex part is opposite to the position of the key.

In a possible embodiment, the side of the push block has a post at a position close to the drive assembly;

the driving assembly is provided with a strip-shaped through hole at a position close to the push block, the width of the strip-shaped through hole is matched with the outer diameter of the stand column, the length direction of the strip-shaped through hole is consistent with the pressing direction of the key, and the stand column is located in the strip-shaped through hole.

In a possible implementation mode, the bottom of each key is provided with an L-shaped structure at the position close to the two ends, and the transverse parts of the two L-shaped structures are far away from each other;

the key mechanism further comprises an elastic piece, and the transverse part of the L-shaped structure is connected with the fixed frame through the elastic piece;

when the push block moves to the first position, the key is accommodated in the key hole under the elastic action of the elastic piece.

In a possible embodiment, the driving assembly comprises a fixed magnet and a sliding magnet, the fixed magnet is fixed with the fixed frame, and the sliding magnet is connected with the push block;

at least one of the fixed magnet and the sliding magnet is an electromagnet, the push block moves to one of the first position and the second position when the polarities of the fixed magnet and the sliding magnet are opposite, and the push block moves to the other of the first position and the second position when the polarities of the fixed magnet and the sliding magnet are the same.

In a possible embodiment, the drive assembly further comprises two sliding rails fixed in parallel to the fixed frame;

the sliding magnet moves between the two sliding rails along the length direction of the sliding rails.

In a possible embodiment, at least one of the two sliding rails has a convex structure, and the sliding magnet has a concave structure matching with the convex structure;

when the driving assembly drives the push block to move to the first position and when the driving assembly drives the push block to move to the second position, the convex structure is located in the concave structure.

In a possible embodiment, the sliding rail with the protruding structure is an elastic sheet with elasticity.

In a possible embodiment, the push block and the drive assembly are articulated.

On the other hand, the application provides a terminal device, and the terminal device comprises the key mechanism.

The key mechanism comprises a driving assembly and a push block, wherein the driving assembly can drive the push block to move to drive the keys to move, so that the keys can be contained in the key holes and extend out of the key holes. Therefore, when the key needs to be operated, the driving assembly can be controlled to drive the push block to move towards a certain direction so as to enable the key to stretch out of the key hole, and when the key does not need to be operated, the driving assembly can be controlled to drive the push block to move towards the other direction so as to enable the key to be accommodated in the key hole, so that the key is prevented from being scratched and mistakenly touched.

In addition, the key mechanism does not need to use a toggle key to manually promote the accommodating and extending of the keys out of the key holes by a user, but uses the driving assembly to automatically promote the accommodating and extending of the keys out of the key holes through the push block, so that the use experience of the user is enhanced. In addition, the side part of the fixing frame is not required to be additionally provided with a through hole for installing the toggle key, so that the terminal equipment where the key mechanism is located is attractive.

In addition, the driving component of the key mechanism can drive the push block to reciprocate by the attraction force and the repulsion force of the fixed magnet and the sliding magnet, so that the key is switched between being accommodated in the key hole and extending out of the key hole. The key mechanism has the advantages of simple structure, few parts, convenient assembly and low cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a key mechanism according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a key mechanism according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a fixing frame of a key mechanism according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a push block of a key mechanism provided in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a push block and a sliding magnet of a key mechanism according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an assembly of a push block and a sliding magnet of a key mechanism provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a driving assembly of a key mechanism according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a driving assembly of a key mechanism according to an embodiment of the present application.

Illustration of the drawings:

1. a fixing frame; 11. a key hole; 12. a rib is protruded;

2. pressing a key; 21. an L-shaped structure; 3. a switch;

4. a push block; 41. a low-lying part; 42. a boss portion; 43. a column;

5. a drive assembly; 51. a fixed magnet; 52. a sliding magnet; 53. a sliding track;

521. a strip-shaped through hole; 522. a recessed structure; 531. a raised structure;

6. an elastic member; 7. switch circuit board.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

The terminology used in the description of the embodiments of the present disclosure is for the purpose of describing the embodiments of the present disclosure only and is not intended to be limiting of the present disclosure. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," "third," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.

The embodiment of the application provides a key mechanism of a terminal device, wherein the terminal device comprises but is not limited to a mobile phone, a computer, an intelligent voice interaction device, an intelligent household appliance, a vehicle-mounted terminal and the like. The keys of the key mechanism are mechanical keys, specifically, a game key, a power key, a volume key and the like, for example, the key mechanism is a game key and can be used for executing a game function, for example, the key mechanism is a power key and can be used for locking a screen, brightening the screen, starting up and shutting down, for example, the key mechanism is a volume key and can be used for adjusting the playing volume of audio or video, and the specific application of the key mechanism is not limited in this embodiment.

The key of the key mechanism has a telescopic function, also called a lifting function, and can extend out of the key hole for the user to operate when the key is needed to be used, and can be accommodated in the key hole when the key is not needed to be used. Therefore, the keys of the key mechanism can not be scratched, and are not easy to be touched by mistake, so that the use experience of a user can be enhanced.

The key mechanism who possesses flexible function among the correlation technique is usually including stirring the key, should stir the key by user operation, drives the key and accepts and stretch out the key-hole, can't realize automaticly, moreover, sets up in addition and stirs the key, need set up extra through-hole at the lateral part of center to the key is stirred in the installation, influences terminal equipment's pleasing to the eye.

The key mechanism provided by the scheme does not need to drive the keys to stretch by means of a shifting key.

As shown in fig. 1 to 3, the key mechanism includes a fixed frame 1, a key 2, a switch 3, a push block 4, and a driving assembly 5. Wherein, the fixing frame 1 may be a middle frame of a terminal device, as shown in fig. 3, the fixing frame 1 may include a bottom frame and a side wall, and the side wall of the fixing frame 1 has a key hole 11. As shown in fig. 1, the keys 2 are located in the key holes 11, and the keys 2 may be mounted in the key holes 11 by a clearance fit, for example. Thus, when the user presses the key 2, the key 2 can move in the key hole 11 in the pressing direction to touch a switch located in the fixed frame 1, and the corresponding function is executed.

As shown in fig. 1, the switch 3 of the key mechanism is located in the fixed frame 1, and the switch 3 and the key 2 are located opposite to each other. For example, the key 2 may be T-shaped, the transverse portion of the key 2 is located in the key hole 11, and the vertical portion of the key 2 is located opposite to the switch 3, e.g., the center line of the vertical portion of the key 2 is collinear with the center line of the switch 3.

In one example, in order to fix the switch 3 in the fixing frame 1, accordingly, as shown in fig. 3, the bottom frame of the fixing frame 1 has a rib 12 at a position corresponding to the key hole 11, and as shown in fig. 2, the switch 3 may be located between the key 2 and the rib 12 and fixed with the rib 12.

Normally, the switch 3 will be electrically connected to the main board of the terminal device through a switch circuit board, and correspondingly, as shown in fig. 2, the key mechanism further includes a switch circuit board 7, the switch circuit board 7 is fixed on the rib 12, and the switch 3 is fixed on the switch circuit board 7.

The key 2 of the key mechanism can extend out of the key hole 11 for the user to press when the corresponding function needs to be executed, and can be accommodated in the key hole 11 when the corresponding function does not need to be executed, so that the key 2 can move back and forth in the key hole 11 along the pressing direction.

The key 2 is accommodated in the key hole 11, and it can be understood that the outer end surface of the key 2 is flush with the outer end surface of the fixed frame 1, or the outer end surface of the key 2 is lower than the outer end surface of the fixed frame 1.

The key mechanism can realize the reciprocating movement of the key 2 in the key hole 11 through the push block 4 and the driving component 5, and correspondingly, as shown in fig. 2, the push block 4 and the driving component 5 are both located in the fixed frame 1, and the push block 4 is connected with the driving component 5, and the specific connection mode will be described below.

Thus, the driving assembly 5 can drive the push block 4 to move, when the driving assembly 5 drives the push block 4 to move to the first position, the push block 4 can enable the key 2 to be accommodated in the key hole 11, and when the driving assembly 5 drives the push block 4 to move to the second position, the push block 4 can enable the key 2 to extend out of the key hole 11.

Therefore, the driving assembly 5 of the key mechanism can drive the key 2 to move in the key hole 11 through the push block 4, so that the key 2 can be accommodated in the key hole 11 and can also extend out of the key hole 11. Thus, when the key 2 needs to be operated, the driving assembly 5 can drive the push block 4 to move to cause the key 2 to protrude out of the key hole 11 for the user to operate. When the key 2 is not required to be operated, the driving assembly 5 can drive the push block 4 to enable the key 2 to be accommodated in the key hole 11, so as to prevent the key 2 from scraping hands and prevent the key 2 from being touched by mistake.

The triggering condition for the driving component 5 to execute the movement of the driving key 2 may be related to a specific function of the key 2. For example, if the key 2 is a power key, the triggering condition may be screen locking and screen brightening of the display screen, and if the terminal device is in the screen locking state, the driving component 5 may drive the key 2 to be accommodated in the key hole 11, and if the terminal device is in the screen brightening state, the driving component 5 may drive the key 2 to extend out of the key hole 11. The bright screen state of the terminal equipment can be realized by touching the display screen.

For another example, if key 2 is a game key, then the trigger condition may be the opening and closing of a game application. For example, when the user starts the game application, the driving component 5 may drive the key 2 to extend out of the key hole 11, and when the user exits the game application, the driving component 5 may drive the key 2 to be accommodated in the key hole 11.

For example, a virtual key may be provided in the terminal device where the key mechanism is located to trigger the storage and extension of the key 2, for example, when the virtual key is ON, the driving unit 5 drives the key 2 to extend out of the key hole 11, and when the virtual key is OFF, the driving unit 5 drives the key 2 to be stored in the key hole 11.

In this embodiment, the triggering condition for driving the key 2 to move by the driving component 5 is not specifically limited, and may be flexibly selected according to the actual situation and the actual requirement.

Wherein the above-mentioned trigger condition can be detected by the driving assembly 5. For example, a detection unit inside the driving component 5 executes a detection function, and for example, the driving component 5 receives a control instruction sent by a processor of the terminal device where the driving component is located, where the control instruction carries the trigger condition.

Thus, when the driving assembly 5 detects that the function corresponding to the key 2 needs to be executed, the driving assembly 5 drives the push block 4 to move so as to enable the key 2 to extend out of the key hole 11, and when the driving assembly 5 detects that the function corresponding to the key 2 does not need to be executed, the driving assembly 5 drives the push block 4 to move so as to enable the key 2 to be accommodated in the key hole 11.

Therefore, the driving assembly 5 of the key mechanism can enable the key 2 to be automatically accommodated in the key hole 11 and automatically extend out of the key hole 11, manual operation of a user is not needed, and user experience is enhanced.

As described above, the push block 4 can drive the key 2 to be accommodated in the key hole 11, and drive the key 2 to stretch out of the key hole 11, and the implementation manner thereof has various types.

For example, one way may be that the pushing block 4 is connected to the key 2, and then the pushing block 4 can move the key 2 when driven by the driving component 5.

For another example, as shown in fig. 2, the push block 4 may be located between the key 2 and the switch 3, the push block 4 may include a depression 41 and a protrusion 42, and the thickness of the push block 4 may gradually increase from the depression 41 to the protrusion 42. When the push block 4 is moved to the first position, the depressed portion 41 is positioned opposite to the key 2, and as shown in fig. 1, the depressed portion 41 is sandwiched between the key 2 and the switch 3, and the key 2 is accommodated in the key hole 11. When the push block 4 moves to the second position, the protrusion 42 and the key 2 are opposite, as shown in fig. 2, the protrusion 42 is sandwiched between the key 2 and the switch 3, and the key 2 protrudes out of the key hole.

As shown in fig. 2, when the key 2 is located opposite to the protrusion 42 and the key 2 protrudes from the key hole 11, the force can be transmitted to the switch 3 through the push block 4, so as to cause the switch 3 to perform the corresponding function. In order to enable the transmission of the force pressing the key 2 to the switch 3, the push block 4 is correspondingly movable relative to the drive assembly 5 in the pressing direction along the key 2. Thus, when the key 2 is pressed, the push block 4 can move in the pressing direction by the force, and the switch 3 is pressed.

In order to realize that the push block 4 can move relative to the drive assembly 5 in the pressing direction along the key 2, the push block 4 and the drive assembly 5 can be connected in such a way that the push block 4 and the drive assembly 5 are hinged. In this way, when the key 2 is pressed, the push block 4 can rotate about the hinge point with the driving assembly 5 with a movement in the pressing direction.

Another way of connecting the pushing block 4 and the driving assembly 5 is also that, as shown in fig. 5, the side of the pushing block 4 has a pillar 43 at a position close to the driving assembly 5. With continued reference to fig. 5, the driving assembly 5 has a through bar-shaped hole 521 at a position close to the push block 4. As shown in fig. 6, the pillar 43 is located in the through-hole 521.

The width of the through bar hole 521 is matched with the outer diameter of the upright column 43, for example, the width of the through bar hole 521 is slightly larger than the outer diameter of the upright column 43, so that the upright column 43 can be located in the through bar hole 521 and can move along the length direction of the through bar hole 521.

The length direction of the bar-shaped through hole 521 is consistent with the pressing direction of the key 2, so that the user can press the key 2, and the push block 4 can move along the pressing direction when the key 2 moves along the pressing direction.

In one example, the key 2 is accommodated in the key hole 11 so that the key 2 can be dropped when the key 2 is located opposite to the depressed portion 41 of the push block 4. Accordingly, as shown in fig. 1, the bottom of the key 2 has L-shaped structures 21 near both ends, and the vertical portion of the key 2, such as a T-shape, has L-shaped structures 21 on both sides, and the horizontal portions of the two L-shaped structures 21 are far away from each other. As shown in fig. 1, the key mechanism further includes an elastic member 6, and the transverse portion of the L-shaped structure 21 is connected to the sidewall of the fixed frame 1 through the elastic member 6.

Wherein the elastic member 6 may be a spring, the lateral portion of the L-shaped structure 21 may be located right under the sidewall of the fixed frame 1, and the spring may be vertically connected between the sidewall of the fixed frame 1 and the lateral portion of the L-shaped structure 21.

Alternatively, the elastic member 6 may be a metal elastic piece as shown in fig. 1, one end of the metal elastic piece may be fixed to the fixed frame 1, and the other end may be fixed to the upper surface of the lateral portion of the L-shaped structure 21, or may be attached to the upper surface of the lateral portion of the L-shaped structure 21.

When the key 2 is received in the key hole 11, the elastic member 6 may be in a natural state or an elastic state, and the elastic member 6 exerts a small pressure on the push block 4, as shown in fig. 1. When the key 2 extends out of the key hole 11, the elastic member 6 is in an elastic state, and the elastic member 6 exerts pressure on the push block 4, as shown in fig. 2.

Thus, when the driving assembly 5 drives the pushing block 4 to move to the first position, as shown in fig. 1, the position of the depression 41 of the pushing block 4 is opposite to the position of the key 2, and then the key 2 falls to the depression 41 under the elastic force of the elastic member 6 and is accommodated in the key hole 11.

The driving assembly of the key mechanism can have various implementation manners as long as the driving assembly can drive the push block 4 to reciprocate to drive the key 2 to move along the pressing direction.

For example, as shown in fig. 1, the driving assembly 5 includes a fixed magnet 51 and a sliding magnet 52, the fixed magnet 51 is fixed to the fixed frame 1, and the sliding magnet 52 is connected to the push block 4. The connection mode between the sliding magnet 52 and the pushing block 4 may be the above-mentioned hinge joint, or the above-mentioned connection mode may be realized by the cooperation of the upright column 43 and the strip-shaped through hole 521, which may be referred to above specifically.

Wherein at least one of the fixed magnet 51 and the sliding magnet 52 is an electromagnet. The electromagnet is composed of a magnetic core and a coil, and the device capable of generating a magnetic field when current flows through the coil can change the polarity of the electromagnet by changing the current direction of a circuit where the electromagnet is located or changing the on-off state of the circuit where the electromagnet is located.

In one example, the fixed magnet 51 may be an electromagnet and the sliding magnet 52 may be a permanent magnet, such as a magnet. In another example, both the fixed magnet 51 and the sliding magnet 52 may be electromagnets. In another example, the fixed magnet 51 may be a permanent magnet, and the sliding magnet 52 may be an electromagnet. In the present embodiment, it is not limited to which of the fixed magnet 51 and the sliding magnet 52 is an electromagnet, and the fixed magnet 51 and the sliding magnet 52 can be flexibly selected according to actual situations in application.

In this way, it is possible to switch the polarities of the fixed magnet 51 and the sliding magnet 52 from the same to opposite and vice versa by controlling the energization of the circuit in which the electromagnet is located.

It can be seen that when the polarities of the fixed magnet 51 and the sliding magnet 52 are opposite, the fixed magnet 51 and the sliding magnet 52 attract each other, and the sliding magnet 52 moves toward the fixed magnet 51, so as to drive the push block 4 to move. Then, the push block 4 can be moved to one of the first position and the second position, for example, as shown in fig. 1, the push block 4 can be moved to the first position, that is, the position where the push block 4 is located when the depression 41 of the push block 4 is sandwiched between the key 2 and the switch 3.

When the polarities of the fixed magnet 51 and the sliding magnet 52 are the same, the fixed magnet 51 and the sliding magnet 52 repel each other, and the sliding magnet 52 moves away from the fixed magnet 51, so as to drive the push block 4 to move. Then, the push block 4 can be moved to the other of the first position and the second position, for example, as shown in fig. 2, the push block 4 can be moved to the second position, that is, the position where the push block 4 is located when the convex portion 42 of the push block 4 is sandwiched between the key 2 and the switch 3.

In an example, in order to promote the stable movement of the sliding magnet 52, correspondingly, as shown in fig. 7 and 8, the driving assembly 5 may further include two sliding rails 53, the two sliding rails 53 serve as a guide, and the two sliding rails 53 are fixed to the fixed frame 1 in parallel. The sliding magnet 52 is movable between the two slide rails 53 along the length direction of the slide rails 53.

In one example, in order to enable the push block 4 to stop moving in the original direction when the positions of the depressed portion 41 and the key 2 are opposite to each other, and to stop moving in the original direction when the positions of the raised portion 42 and the key 2 are opposite to each other. Accordingly, at least one of the two slide rails 53 has a first stopper structure, and the sliding magnet 52 has a second stopper structure cooperating with the first stopper structure.

Thus, when the sliding magnet 52 of the driving assembly 5 drives the pushing block 4 to move to the first position and when the sliding magnet 52 of the driving assembly 5 drives the pushing block 4 to move to the second position, the first limiting structure and the second limiting structure are matched.

Wherein the first limit structure may be a protrusion structure located at the end of the sliding track 53, and the second limit structure may be the end of the sliding magnet 52.

Thus, when the sliding magnet 52 drives the push block 4 to move to the position of the depression 41 and the position of the key 2 are opposite to each other, the end of the sliding magnet 52 contacts with the protruding structure at the end of the sliding track 53, and the sliding magnet 52 stops moving in the original direction. When the sliding magnet 52 drives the push block 4 to move to the position of the convex part 42 and the position of the key 2 are opposite, the end of the sliding magnet 52 contacts with the convex structure at the end of the sliding track 53, and the sliding magnet 52 stops moving continuously along the original direction.

In another example, the first retention structure may be a raised structure and the second retention structure may be a recessed structure, and in another example, the first retention structure may be a recessed structure and the second retention structure may be a raised structure. For convenience of description, the first limit structure of the sliding rail 53 may be a convex structure, and the second limit structure of the sliding magnet 52 may be a concave structure.

As shown in fig. 7 and 8, at least one of the two slide rails 53 has a convex structure 531, and the slide magnet 52 has a concave structure 522 cooperating with the convex structure 531. When the driving assembly 5 drives the pushing block 4 to move to the first position and when the driving assembly 5 drives the pushing block 4 to move to the second position, the protrusion 531 is located in the recess 522 to limit the sliding magnet 52 from moving further along the original direction.

As shown in fig. 7 and 8, one of the sliding rails 53, for example the sliding rail 53 remote from the side wall of the fixed frame 1, has a convex structure 531, while the bottom of the sliding magnet 52 remote from the fixed frame 1 has two concave structures 522.

As shown in fig. 7, when the fixed magnet 51 and the sliding magnet 52 attract each other, the convex structure 531 of the sliding track 53 is located in the concave structure 522 away from the fixed magnet 51, so that the sliding magnet 52 cannot move further in the direction approaching the fixed magnet 51. At this time, referring to fig. 1, the vertical portion of the T-shaped key 2 is located at the depression 41 of the push block 4, and the key 2 is accommodated in the key hole 11 by the elastic member 6.

As shown in fig. 8, when the fixed magnet 51 and the sliding magnet 52 repel each other, the convex structure 531 of the sliding track 53 is located in the concave structure 522 close to the fixed magnet 51, so that the sliding magnet 52 cannot move further away from the fixed magnet 51. At this time, referring to fig. 2, the vertical portion of the T-shaped key 2 is located at the protrusion 42 of the push block 4, and the key 2 is pushed by the protrusion 42 to protrude from the key hole 11.

In one example, when the polarities of the fixed magnet 51 and the sliding magnet 52 are switched from the same to opposite, or vice versa, the sliding magnet 52 moves the push block 4, and then the protrusion 531 can be switched from being located in the recess 522 close to the fixed magnet 51 to being located in the recess 522 far from the fixed magnet 51, and can be switched from being located in the recess 522 far from the fixed magnet 51 to being located in the recess 522 close to the fixed magnet 51. It can be seen that there are instances where the raised structures 531 are disengaged from the recessed structures 522.

In order to facilitate the separation of the protruding structure 531 from the recessed structure 522, correspondingly, one implementation manner may be that the outer surface of the protruding structure 531 is an arc surface, and the transition is smooth, and the inner surface of the recessed structure 522 is also an arc surface, and the transition is smooth and easy to separate.

Another way to realize this is that the sliding track 53 having the protruding structure 531 is an elastic sheet having elasticity, so that when the magnetic force between the fixed magnet 51 and the sliding magnet 52 causes the protruding structure 531 to be disengaged from the recessed structure 522, the sliding track 53 having the protruding structure 531 can be deformed, so that the protruding structure 531 can be easily disengaged from the recessed structure 522.

The above is the solution that the driving assembly 5 includes the fixed magnet 51 and the sliding magnet 52, and of course, the driving assembly 5 may be a cylinder assembly, a motor assembly, or the like.

Based on the above, as shown in fig. 1 and 2, the key mechanism may include a fixed frame 1, a key 2, a switch 3, a push block 4, a driving assembly 5, an elastic member 6, and a switch circuit board 7. The side wall of the fixed frame 1 is provided with a key hole 11, the key 2 is positioned in the key hole 11, an elastic part 6 is connected between the transverse part of the L-shaped structure 21 of the key 2 and the side wall of the fixed frame 1, when the key 2 is accommodated in the key hole 11, the elastic part 6 is in a natural state or applies small pressure to the key 2, and when the key 2 extends out of the key hole 11, the elastic part 6 applies large pressure to the key 2.

The switch 3 can be welded on the switch circuit board 7, the switch circuit board 7 is electrically connected with the main board of the terminal device where the key mechanism is located, the switch circuit board 7 is fixed with the convex rib 12 of the fixing frame 1, wherein the positions of the switch 3 and the key 2 are opposite, for example, the central line of the key 2 and the central line of the switch 3 are collinear.

The push block 4 is a strip-shaped plate-shaped structure and is located between the key 2 and the switch 3, one end of the push block is connected with the driving component 5, and the push block 4 can move along the pressing direction of the key 2 relative to the driving component 5. Wherein, the pushing block 4 comprises a low-lying part 41 and a convex part 42, if the convex part 42 is close to the driving component 5, the low-lying part 41 is close to the driving component 5.

The driving assembly 5 includes a fixed magnet 51 and a sliding magnet 52, and when the polarities of the fixed magnet 51 and the sliding magnet 52 are opposite to each other, as shown in fig. 1, the sliding magnet 52 drives the push block 4 to move to a position where the key 2 is opposite to the depressed portion 41, so that the key 2 falls back to the depressed portion 41 under the pressure of the elastic member 6 and is accommodated in the key hole 11. When the polarities of the fixed magnet 51 and the sliding magnet 52 are the same, as shown in fig. 2, the sliding magnet 52 drives the push block 4 to move to a position where the key 2 is opposite to the protrusion 42, and the key 2 is pushed by the protrusion 42 to protrude out of the key hole 11 because the switch 3 cannot move.

Therefore, the driving assembly 5 of the key mechanism can enable the key 2 to be automatically accommodated in the key hole 11 and automatically extend out of the key hole 11, manual operation of a user is not needed, and user experience is enhanced.

In the driving unit 5 of the key mechanism, the pushing block 4 is driven to reciprocate by the attractive force and repulsive force of the fixed magnet 51 and the sliding magnet 52, and the key 2 is urged to be switched between being accommodated in the key hole 11 and being protruded from the key hole 11. The key mechanism has the advantages of simple structure, few parts, convenient assembly and low cost.

The embodiment of the application further provides terminal equipment, and the terminal equipment comprises but is not limited to a mobile phone, a computer, intelligent voice interaction equipment, intelligent household appliances, a vehicle-mounted terminal and the like. The terminal equipment comprises the key mechanism. The key mechanism of the terminal device comprises a driving assembly and a push block, wherein the driving assembly can drive the push block to move to drive the keys to move, so that the keys can be contained in the key holes and stretch out of the key holes. Therefore, when the key needs to be operated, the driving assembly can be controlled to drive the push block to move towards a certain direction so as to enable the key to stretch out of the key hole, and when the key does not need to be operated, the driving assembly can be controlled to drive the push block to move towards the other direction so as to enable the key to be accommodated in the key hole, so that the key is prevented from being scratched and mistakenly touched.

In addition, the key mechanism does not need to use a toggle key to manually promote the accommodating and extending of the keys out of the key holes by a user, but uses the driving assembly to automatically promote the accommodating and extending of the keys out of the key holes through the push block, so that the use experience of the user is enhanced. In addition, the side part of the fixing frame is not required to be additionally provided with a through hole for installing the toggle key, so that the terminal equipment where the key mechanism is located is attractive.

In addition, the driving component of the key mechanism can drive the push block to reciprocate by the attraction force and the repulsion force of the fixed magnet and the sliding magnet, so that the key is switched between being accommodated in the key hole and extending out of the key hole. The key mechanism has the advantages of simple structure, few parts, convenient assembly and low cost.

The above description is only an example of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like that are made within the principles of the present application should be included in the scope of the present application.

Claims (10)

1. A key mechanism is characterized by comprising a fixed frame (1), a key (2), a switch (3), a push block (4) and a driving assembly (5);

the fixed frame (1) is provided with a key hole (11), the key (2) is positioned in the key hole (11), the switch (3), the push block (4) and the driving component (5) are all positioned in the fixed frame (1), the switch (3) and the key (2) are opposite in position, and the push block (4) is connected with the driving component (5);

when the driving assembly (5) drives the push block (4) to move to the first position, the key (2) is accommodated in the key hole (11), and when the driving assembly (5) drives the push block (4) to move to the second position, the key (2) extends out of the key hole (11).

2. A key mechanism according to claim 1, wherein said push block (4) is located between said key (2) and said switch (3), and said push block (4) is movable with respect to said actuation assembly (5) in a pressing direction along said key (2);

the push block (4) comprises a low-lying part (41) and a convex part (42), and the thickness of the push block (4) is gradually increased from the low-lying part (41) to the convex part (42);

when the push block (4) moves to the first position, the position of the low-lying part (41) is opposite to the position of the key (2), and when the push block (4) moves to the second position, the position of the convex part (42) is opposite to the position of the key (2).

3. A key mechanism according to claim 2, wherein the side of said push block (4) has a post (43) at a position close to said drive assembly (5);

the driving assembly (5) is provided with a strip-shaped through hole (521) at a position close to the push block (4), the width of the strip-shaped through hole (521) is matched with the outer diameter of the upright post (43), the length direction of the strip-shaped through hole (521) is consistent with the pressing direction of the key (2), and the upright post (43) is positioned in the strip-shaped through hole (521).

4. A key mechanism according to claim 2, characterised in that said push block (4) and said drive assembly (5) are hinged.

5. A key mechanism according to claim 2, characterized in that the bottom of said key (2) has L-shaped structures (21) near the two ends, respectively, the transverse portions of the two L-shaped structures (21) being distant from each other;

the key mechanism further comprises an elastic piece (6), and the transverse part of the L-shaped structure (21) is connected with the fixed frame (1) through the elastic piece (6);

when the push block (4) moves to the first position, the key (2) is accommodated in the key hole (11) under the action of the elastic force of the elastic piece (6).

6. A key mechanism according to any one of claims 1 to 5, wherein said driving assembly (5) comprises a fixed magnet (51) and a sliding magnet (52), said fixed magnet (51) being fixed to said fixed frame (1), said sliding magnet (52) being associated with said push block (4);

at least one of the fixed magnet (51) and the sliding magnet (52) is an electromagnet, the push block (4) moves to one of the first position and the second position when the polarities of the fixed magnet (51) and the sliding magnet (52) are opposite, and the push block (4) moves to the other of the first position and the second position when the polarities of the fixed magnet (51) and the sliding magnet (52) are the same.

7. The key mechanism according to claim 6, characterized in that said driving assembly (5) further comprises two sliding rails (53), said two sliding rails (53) being fixed in parallel to said fixed frame (1);

the slide magnet (52) moves between the two slide rails (53) along the longitudinal direction of the slide rails (53).

8. A key mechanism according to claim 7, wherein at least one (53) of said two sliding tracks (53) has a raised structure (531), said sliding magnet (52) having a recessed structure (522) cooperating with said raised structure (531);

when the driving assembly (5) drives the push block (4) to move to the first position and when the driving assembly (5) drives the push block (4) to move to the second position, the convex structure (531) is located in the concave structure (522).

9. A key mechanism according to claim 8, characterised in that the sliding track (53) with said raised structure (531) is a resilient leaf spring.

10. A terminal device, characterized in that the terminal device comprises a key mechanism according to any one of claims 1 to 9.

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