CN216435740U - Double-key structure and electronic equipment - Google Patents

Abstract

The present disclosure provides a double key structure and an electronic device. The double-key structure comprises a first key, a second key and a printed circuit board, wherein the first key and the second key are positioned on the same side of the printed circuit board. The printed circuit board is provided with a first switch and a second switch at one side close to the second key. The middle part of one side of the first key, which is far away from the printed circuit board, is provided with a groove, the bottom of the groove is provided with at least one opening, one side of the first key, which is close to the printed circuit board, is provided with a first trigger part, and the first trigger part is positioned at the bottom of the groove and is opposite to the first switch. The second key is positioned in the groove, one surface of the second key, which is close to the printed circuit board, is provided with a second trigger part, and the second trigger part is positioned in the opening and is opposite to the second switch. The situation that a plurality of switches are triggered when the first key is pressed can be avoided by only arranging one first switch, so that the response of the switches is more accurate, and a user has better use experience.

Description

Double-key structure and electronic equipment

Technical Field

The present disclosure relates to the field of key structures, and in particular, to a dual-key structure and an electronic device.

Background

Most of the commonly used electronic devices are provided with keys, such as a remote controller of a household appliance, a mobile phone, and the like. There are many arrangements of keys of electronic devices, and a ring-shaped double-key structure is a common arrangement.

In the related art, the annular dual key structure includes an annular key, a center key, and a printed circuit board, the annular key surrounding the center key. The printed circuit board has a plurality of first switches and 1 second switch, the plurality of first switches being arranged around the second switch. The annular keys correspond to the plurality of first switches, and the central keys correspond to the second switches. When the annular key is pressed, any one first switch is triggered, and the electronic equipment responds correspondingly.

When the position between two adjacent first switches is pressed in the process of using the electronic equipment, the annular key can trigger the two first switches one after the other, so that the electronic equipment generates two responses.

SUMMERY OF THE UTILITY MODEL

In view of this, the present disclosure provides a dual key structure and an electronic device, the dual key structure being capable of preventing a switch from being triggered multiple times.

Specifically, the method comprises the following technical scheme:

in a first aspect, a dual key structure is provided, where the dual key structure includes a printed circuit board, a first key and a second key, and the first key and the second key are located on the same side of the printed circuit board;

one side of the printed circuit board close to the first key is provided with a first switch and a second switch;

the middle part of one surface of the first key, which is far away from the printed circuit board, is provided with a groove, the bottom of the groove is provided with at least one opening, one surface of the first key, which is close to the printed circuit board, is provided with a first trigger part, and the first trigger part is positioned at the bottom of the groove and is opposite to the first switch;

the second key is positioned in the groove, one surface of the second key, which is close to the printed circuit board, is provided with a second trigger part, and the second trigger part is positioned in the opening and is opposite to the second switch.

Optionally, orthographic projections of the second key and the first key on the surface of the printed circuit board are both circular, and centers of circles are coincident.

Optionally, in a radial direction of the first key, a minimum distance from the first trigger part to a side wall of the groove is greater than a distance from a center of the first key; and/or the presence of a gas in the gas,

and along the radial direction of the second key, the minimum distance from the second trigger part to the edge of the second key is greater than the distance from the second trigger part to the center of the second key.

Optionally, the dual-key structure further includes a support and a first elastic sheet, the support is located between the printed circuit board and the first key and connected to the printed circuit board, the first elastic sheet is located between the support and the first key, and the first elastic sheet is connected to the first key and the support respectively.

Optionally, the first elastic sheet includes a first main body portion and a plurality of first elastic arms, the plurality of first elastic arms are distributed along a circumferential direction of the first main body portion, and respective one ends of the plurality of first elastic arms are respectively connected to the first main body portion, respective other ends of the plurality of first elastic arms are respectively connected to the first key, and the first main body portion is connected to the support.

Optionally, one side of the first key close to the bracket is provided with a plurality of first connecting posts, the other end of the first elastic arm is provided with first connecting post holes, and the first connecting posts are located in the first connecting post holes.

Optionally, a first buckle is arranged on one side of the first main body part close to the bracket;

the bracket is provided with a first buckle hole, and the first buckle is clamped with the first buckle hole.

Optionally, the dual-key structure further includes a second elastic sheet, the second elastic sheet is located between the second key and the support, and the second elastic sheet is connected to the second key and the support respectively.

Optionally, the second elastic piece includes a second main body portion and a plurality of second elastic arms, the plurality of second elastic arms are distributed along a circumferential direction of the second main body portion, and respective one ends of the plurality of second elastic arms are respectively connected to the second main body portion, respective other ends of the plurality of second elastic arms are respectively connected to the second key, and the second main body portion is connected to the bracket.

Optionally, one side of the second key close to the bracket is provided with a plurality of second connecting columns, the other end of the second elastic arm is provided with second connecting column holes, and the second connecting columns are located in the second connecting column holes.

Optionally, a side of the second body portion close to the bracket is provided with a second buckle, and the second buckle is located in an opening at the bottom of the groove;

and a second buckle hole is formed in the support, and the second buckle is clamped with the second buckle hole.

In a second aspect, an electronic device is provided, which includes the dual-key structure of the first aspect.

The technical scheme provided by the embodiment of the disclosure has the beneficial effects that:

in the double-key structure provided by the embodiment of the disclosure, the first key and the second key trigger the first switch and the second switch respectively through the first trigger part and the second trigger part, the first trigger part is located at the groove of the first key, and any position of the first key is pressed, the first switch can be triggered through the first trigger part, only one first switch needs to be arranged, the condition that a plurality of switches are triggered when the first key is pressed is avoided, so that the response of the switch is more accurate, the first switch is prevented from being continuously triggered in one pressing process, the response of the electronic equipment is more accurate, and a user has better use experience.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, 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 disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic diagram of a dual key structure provided by an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of the dual key structure provided in FIG. 1 taken along the direction A-A;

FIG. 3 is a cross-sectional view of the dual key structure provided in FIG. 1 taken along the direction B-B;

fig. 4 is a schematic structural diagram of a first key provided in the embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a first elastic sheet provided in an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a second key provided in the embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a second key and a second elastic sheet provided in the embodiment of the disclosure;

FIG. 8 is a schematic diagram of a dual key structure provided by embodiments of the present disclosure;

FIG. 9 is a schematic diagram of a dual key structure provided by embodiments of the present disclosure;

fig. 10 is a schematic diagram of a printed circuit board provided by an embodiment of the disclosure.

The reference numerals in the drawings denote:

1-a first key; 101-a first trigger; 102-a first connecting post; 103-a groove; 104-an opening;

2-a second key; 201-a second trigger; 202-a second connecting column;

3-a second elastic sheet; 301-a second clasp; 302-a second resilient arm; 303-second connecting post hole; 304-a second body portion; 305-a via;

4-a first elastic sheet; 401-a first snap; 402-a first resilient arm; 403-first connecting post hole; 404-a first body portion;

5-a bracket; 501-a first snap hole; 502-a second snap hole; 503-screw column; 504-first trigger portion hole; 505-a second trigger hole;

6-a printed circuit board; 601-a first switch; 602-a second switch; 603-circuit board mounting holes.

With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Reference to orientation terms in the embodiments of the present disclosure, such as "upper," "lower," "side," and the like, are generally based on the relative relationship of the orientations shown in fig. 2, and these orientation terms are used merely for clarity of description of the structures and the relationship between the structures, and are not used for describing absolute orientations. When the product is placed in different postures, the orientation may be changed, for example, "up" and "down" may be interchanged.

Fig. 1 is a schematic diagram of a dual-key structure provided in an embodiment of the present application, and as shown in fig. 1, the dual-key structure includes a first key 1 and a second key 2. The dual-key structure is a key of an electronic device, and the electronic device can be but is not limited to a mobile phone, a tablet computer, a notebook computer and a remote controller.

Fig. 2 is a cross-sectional view of the dual key structure provided in fig. 1, taken along the direction a-a, and further including a printed circuit board 6, and the first key 1 and the second key 2 are located on the same side of the printed circuit board 6, see fig. 2. The printed circuit board 6 has a first switch 601 and a second switch 602 on a side thereof adjacent to the first key 1. The first key 1 has a groove 103 in the middle of its side away from the printed circuit board 6, and the bottom of the groove 103 has at least one opening 104. One side of the first key 1 close to the printed circuit board 6 is provided with a first triggering portion 101, the first triggering portion 101 is located at the bottom of the groove 103, and the first triggering portion 101 is opposite to the first switch 601. The second key 2 is located in the recess 103. One side of the second button 2 close to the printed circuit board 6 has a second triggering portion 201, the second triggering portion 201 is located in the opening 104, and the second triggering portion 201 is opposite to the second switch 602.

In the dual-key structure provided by the embodiment of the present disclosure, the first key 1 and the second key 2 respectively trigger the first switch 601 and the second switch 602 through the first triggering portion 101 and the second triggering portion 201, and the first triggering portion 101 is located at the groove 103 of the first key 1, and when any position of the first key 1 is pressed, the first switch 601 can be triggered through the first triggering portion 101, only one first switch needs to be set, thereby avoiding the situation that a plurality of switches are triggered when the first key 1 is pressed, making the switch response more accurate, avoiding the first switch 601 being continuously triggered in one pressing process, making the response of the electronic device more accurate, and making the user have better use experience.

In order to make the technical solutions and advantages of the present disclosure clearer, the following will describe embodiments of the present disclosure in further detail with reference to the accompanying drawings.

As shown in fig. 1, the upper surfaces of the first key 1 and the second key 2 are both circular, and the first key 1 and the second key 2 are concentrically arranged. The upper surfaces of the first key 1 and the second key 2 are coplanar, the first key 1 and the second key 2 are not interfered with each other, the second key 2 is not displaced when only the first key 1 is pressed, and the first key 1 is not displaced when only the second key 2 is pressed.

Referring to fig. 2, the printed circuit board 6 is located directly below the first key 1 and the second key 2. Referring to fig. 1, the orthographic projections of the first key 1 and the second key 2 on the surface of the printed circuit board 6 are both circular, and the centers of the circles are coincident.

The middle of the first key 1 is provided with a first groove 103, the first trigger part 101 of the first key 1 is located at the bottom of the groove 103, and the first trigger part 101 is located right above the first switch 601. When the first key 1 is pressed, the first trigger 101 moves in a direction to approach the first switch 601, thereby triggering the first switch 601. The second button 2 is located in the groove 103, the second triggering portion 201 of the second button 2 passes through the opening 104 at the bottom of the groove 103, and the second triggering portion 201 is located right above the second switch 602. When the second button 2 is pressed, the second trigger 201 moves in a direction to approach the second switch 602, and the second switch 602 is triggered.

Illustratively, the first switch and the second switch may be micro switches. The micro switch has small volume and small stroke, and is favorable for reducing the volume of the double-key structure.

In some embodiments of the present application, as shown in fig. 2, the minimum distance from the first triggering part 101 to the sidewall of the recess 103 is greater than the distance to the center of the first key 1 in the radial direction of the first key 1. I.e. the first activation part 101 is arranged close to the centre of the first key 1. The projection of the first key 1 on the printed circuit board 6 is circular, and the projection of the center of the first key 1 on the printed circuit board 6 is the circle center of the circle.

Because the first trigger part 101 is close to the center of the first key 1, when the first switch 601 is triggered at different positions of the first key 1, the required pressing force difference is small, and the hand feeling is more consistent.

In some embodiments of the present application, as shown in fig. 2, the minimum distance from the second triggering portion 201 to the edge of the second key 2 is greater than the distance to the center of the second key 2 along the radial direction of the second key 2. I.e. the second triggering portion 201 is arranged close to the center of the second key 2. The projection of the second key 2 on the printed circuit board 6 is circular, and the projection of the center of the second key 2 on the printed circuit board 6 is the circle center of the circle. The projection of the center of the second key 2 on the printed circuit board 6 coincides with the projection of the center of the first key 1 on the printed circuit board 6.

Because the second trigger part 201 is close to the center of the second button 2, when the second switch 602 is triggered by pressing different positions of the second button 2, the required pressing force difference is small, and the hand feeling is more consistent.

As shown in fig. 2, the double key structure provided by the embodiment of the present application may further include a bracket 5 and a first elastic sheet 4. The bracket 5 is positioned between the printed circuit board 6 and the first key 1, and the bracket 5 is connected with the printed circuit board 6. The first elastic sheet 4 is located between the support 5 and the first key 1, and the first elastic sheet 4 is connected with the first key 1 and the support 5 respectively.

The first elastic sheet 4 can prevent the first key 1 from being released. The first elastic sheet 4 can apply a downward pulling force to the first key 1, so that the first trigger part 101 is abutted against the first switch 601, the requirement on the processing precision of the length of the first trigger part 101 is reduced, and the assembly precision is improved.

Under the action of the elastic force of the first elastic sheet 4, the pressure of the first trigger part 101 on the first switch 601 is less than the minimum pressure required for triggering the first switch 601, so as to avoid that the first switch 601 is triggered under the action of the elastic force of the first elastic sheet 4 when the first key 1 is not pressed.

In some embodiments of the present application, referring to fig. 2, the dual key structure may further include a second elastic sheet 3, the second elastic sheet 3 is located between the second key 2 and the support 5, and the second elastic sheet 3 is connected to the second key 2 and the support 5, respectively.

The second elastic sheet 3 can prevent the second key 2 from being released. The second elastic sheet 3 can apply a downward force to the second key 2, so that the second trigger part 201 is abutted against the second switch 602, the requirement on the processing precision of the length of the second trigger part 201 is reduced, and the assembly precision is improved.

Under the action of the elastic force of the second elastic sheet 3, the pressure of the second trigger part 201 on the second switch 602 is less than the minimum pressure required for triggering the second switch 602, so as to avoid that the second switch 602 is triggered under the action of the elastic force of the second elastic sheet 3 when the second button 2 is not pressed.

Fig. 3 is a cross-sectional view of the dual key structure provided in fig. 1, taken along the direction B-B. As shown in fig. 3, the second triggering portion 201 of the second button 2 passes through the opening 104 of the recess 103 and the bracket 5, and abuts against the second switch 602.

Fig. 4 is a schematic structural diagram of the first key 1 according to the embodiment of the present application, and as shown in fig. 4, the first triggering portion 101 is a column. Exemplarily, in the embodiment of the present disclosure, the first triggering portion 101 is cylindrical, and a length direction of the first triggering portion 101 is perpendicular to a bottom of the groove 103.

The bottom of the recess 103 is provided with a plurality of openings 104 to enable the second triggering portion 201 to pass through the first button 1, and the plurality of openings 104 also serve to reduce weight.

One side of the first key 1 close to the bracket 5 is provided with a plurality of first connecting columns 102, and the first connecting columns 102 are used for connecting the first elastic sheet 4. Illustratively, the plurality of first connecting columns 102 are uniformly distributed along the circumferential direction of each first key 1.

Fig. 5 is a schematic structural diagram of the first elastic sheet 4 according to the embodiment of the present application. As shown in fig. 5, the first elastic sheet 4 includes a first main body 404 and a plurality of first elastic arms 402, the plurality of first elastic arms 402 are distributed along a circumferential direction of the first main body 404, and each of the first elastic arms 402 has one end connected to the first main body 404, and each of the other ends connected to the first key 1, respectively, and the first main body 404 is connected to the bracket 5.

The first body portion 404 is circular and arranged around the groove 103, so that the first trigger portion 101 and the second trigger portion 201 can pass through the first elastic sheet 4.

The first body portion 404 has a first catch 401 on a side thereof adjacent to the bracket 5, and the first catch 401 is adapted to be connected to the bracket 5.

Alternatively, there are a plurality of the first hooks 401, and the plurality of the first hooks 401 are uniformly arranged at the edge of the first body portion 404. By uniformly arranging the plurality of first buckles 401, the connection between the first elastic sheet 4 and the bracket 5 is more stable.

Illustratively, the extending direction of the first buckle 401 is perpendicular to the plane of the first main body 404.

As shown in fig. 5, the first resilient arm 402 is arcuate. One end of the first elastic arm 402 is connected to the first main body 404, and the other end of the first elastic arm 402 is provided with a first connecting post hole 403, and the first connecting post hole 403 is used for connecting the first key 1 and the first elastic sheet 4.

Fig. 6 is a schematic structural diagram of a second key according to an embodiment of the present application. As shown in fig. 6, the second trigger part 201 has a columnar shape. Exemplarily, in the embodiment of the present disclosure, the second trigger portion 201 is cylindrical. And the length direction of the second triggering part 201 is perpendicular to the second key 2. One side of the second key 2 close to the bracket 5 is provided with a plurality of second connecting posts 202, and the second connecting posts 202 are used for connecting the second elastic sheet 3. Exemplarily, the plurality of second connection posts 202 are evenly distributed along the circumference of the second key 2.

Fig. 7 is a schematic view illustrating an assembly of the second key 2 and the second elastic sheet 3 according to the embodiment of the present application. As shown in fig. 7, the second elastic sheet 3 may include a second main body portion 304 and a plurality of second elastic arms 302, the plurality of second elastic arms 302 are distributed along a circumferential direction of the second main body portion 304, and one end of each second elastic arm 302 is connected to the second main body portion 304, the other end of each second elastic arm is connected to the second key 2, and the second main body portion 304 is connected to the bracket 5.

The second body portion 304 is provided with a through hole 305, and the second trigger portion 201 passes through the through hole 305.

The second body portion 304 has a second catch 301 on a side thereof adjacent to the bracket 5, and the second catch 301 is adapted to be connected to the bracket 5.

Optionally, there are a plurality of second hooks 301, and the plurality of second hooks 301 are uniformly arranged at the edge of the second body portion 304. By uniformly arranging the plurality of second buckles 301, the connection between the second elastic sheet 3 and the bracket 5 is more stable.

Illustratively, the extending direction of the second buckle 301 is perpendicular to the plane of the second body portion 304.

As shown in fig. 7, the second resilient arm 302 has an arc shape. One end of the second elastic arm 302 is connected to the second main body 304, the other end of the second elastic arm 302 is provided with a second connecting column hole 303, and the second connecting column 202 is located in the second connecting column hole 303 to connect the second key 2 and the second elastic sheet 3.

It should be noted that the plurality of first connecting posts 102 and the plurality of second connecting posts 202 in the above embodiments may be heat-fusible posts. The heat-fusible column can be melted by heat during processing to bond the first connecting column 102 with the first elastic arm 402 and to bond the second connecting column 202 with the second elastic arm 302.

Fig. 8 is a schematic view of a double key structure provided by an embodiment thereof, and at least the holder 5 and the printed circuit board 6 are omitted in fig. 8. As shown in fig. 8, the second body portion 304 is located between the bottom of the groove 103 and the second key 2, and the second catch 301 is located in the bottom opening 104 of the groove 103 and passes through the bottom of the groove 103.

Fig. 9 is a schematic diagram of a dual-key structure provided in an embodiment of the present application, and at least the printed circuit board 6 is omitted in fig. 9. As shown in fig. 9, the bracket 5 may have a first fastening hole 501, and the first fastener 401 is fastened to the first fastening hole 501. The number of the first fastening holes 501 is plural, and the plural first fastening holes 501 correspond to the plural first fasteners 401 one by one. The bracket 5 may further have a second fastening hole 502, and the second fastener 301 is fastened to the second fastening hole 502. The second locking holes 502 are plural, and the second locking holes 502 correspond to the second locks 301 one by one. The bracket 5 is further provided with a first trigger part hole 504 and a second trigger part hole 505, and the first trigger part 101 and the second trigger part 201 respectively pass through the first trigger part hole 504 and the second trigger part hole 505 to trigger the first switch 601 and the second switch 602.

In some embodiments of the present application, as shown in fig. 9, the bracket 5 further has a plurality of screw posts 503, and the plurality of screw posts 503 are located on a side of the bracket 5 adjacent to the printed circuit board 6. Fig. 10 is a schematic structural diagram of a printed circuit board according to an embodiment of the present disclosure. As shown in fig. 10, a plurality of circuit board mounting holes 603 are formed in the printed circuit board 6, and the plurality of circuit board mounting holes 603 may correspond to the plurality of screw posts 503 one-to-one for connecting the bracket 5 and the printed circuit board 6 by a bolt.

In addition, the embodiment of the disclosure also provides an electronic device, which includes any one of the double-key structures shown in fig. 1 to 10. The electronic device may be, but is not limited to: the remote controller comprises a remote controller, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion Picture Experts compression standard Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion Picture Experts compression standard Audio Layer 4) and a notebook computer. The electronic device may also be referred to by other names such as user equipment, portable terminal, laptop terminal, etc. In the electronic equipment, the first key of the double-key structure surrounds the second key, the first key and the second key trigger the first switch and the second switch through the first trigger part and the second trigger part respectively, the first trigger part and the second trigger part are in contact with the groove of the first key, the first switch can be triggered at any position of the first key, a plurality of switches do not need to be arranged on the printed circuit board, the condition that the plurality of switches are triggered can not occur when the first key is pressed, the continuous triggering of the first switch is avoided, the consistency of force fed back when the first key is pressed is improved, and a user has better use experience.

Unless defined otherwise, all technical terms used in the embodiments of the present disclosure have the same meaning as commonly understood by one of ordinary skill in the art.

In this disclosure, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

Although the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the disclosure.

Claims (12)

1. A dual key structure, characterized in that it comprises a first key (1), a second key (2) and a printed circuit board (6), said first key (1) and said second key (2) being located on the same side of said printed circuit board (6);

one side of the printed circuit board (6) close to the first key (1) is provided with a first switch (601) and a second switch (602);

a groove (103) is formed in the middle of one surface, away from the printed circuit board (6), of the first key (1), at least one opening (104) is formed in the bottom of the groove (103), a first trigger part (101) is formed in one surface, close to the printed circuit board (6), of the first key (1), and the first trigger part (101) is located at the bottom of the groove (103) and is opposite to the first switch (601);

the second key (2) is positioned in the groove (103), one surface, close to the printed circuit board (6), of the second key (2) is provided with a second trigger part (201), and the second trigger part (201) is positioned in the opening (104) and is opposite to the second switch (602).

2. The double key structure according to claim 1, wherein the orthographic projections of the first key (1) and the second key (2) on the surface of the printed circuit board (6) are both circular and have coincident centers.

3. The dual key structure of claim 1,

the minimum distance from the first trigger part (101) to the side wall of the groove (103) along the radial direction of the first key (1) is larger than the distance to the center of the first key (1); and/or the presence of a gas in the atmosphere,

the minimum distance from the second trigger part (201) to the edge of the second key (2) along the radial direction of the second key (2) is larger than the distance to the center of the second key (2).

4. The dual key structure according to any one of claims 1 to 3, further comprising a support (5) and a first elastic sheet (4), wherein the support (5) is located between the printed circuit board (6) and the first key (1) and is connected to the printed circuit board (6), the first elastic sheet (4) is located between the support (5) and the first key (1), and the first elastic sheet (4) is connected to the first key (1) and the support (5), respectively.

5. The double key structure according to claim 4, wherein the first elastic sheet (4) comprises a first main body portion (404) and a plurality of first elastic arms (402), the plurality of first elastic arms (402) are distributed along the circumference of the first main body portion (404), and one end of each first elastic arm is connected with the first main body portion (404), the other end of each first elastic arm is connected with the first key (1), and the first main body portion (404) is connected with the bracket (5).

6. The double key structure according to claim 5, wherein a side of the first key (1) adjacent to the holder (5) has a plurality of first connecting posts (102), the other end of the first resilient arm (402) is provided with first connecting post holes (403), and the first connecting posts (102) are located in the first connecting post holes (403).

7. The double key structure according to claim 5, wherein the first body portion (404) has a first catch (401) on a side thereof adjacent to the bracket (5);

the bracket (5) is provided with a first buckling hole (501), and the first buckle (401) is buckled with the first buckling hole (501).

8. The double key structure according to claim 4, further comprising a second elastic sheet (3), wherein the second elastic sheet (3) is located between the second key (2) and the support (5), and the second elastic sheet (3) is connected to the second key (2) and the support (5), respectively.

9. The double key structure according to claim 8, wherein said second elastic sheet (3) comprises a second main body portion (304) and a plurality of second elastic arms (302), said plurality of second elastic arms (302) are distributed along the circumference of said second main body portion (304), and one end of each of said plurality of second elastic arms is connected to said second main body portion (304), the other end of each of said plurality of second elastic arms is connected to said second key (2), and said second main body portion (304) is connected to said support (5).

10. The double key structure according to claim 9, wherein a side of the second key (2) adjacent to the holder (5) has a plurality of second connection posts (202), the other end of the second resilient arm (302) is provided with second connection post holes (303), and the second connection posts (202) are located in the second connection post holes (303).

11. The double key structure according to claim 9, wherein the second body portion (304) has a second catch (301) on a side thereof adjacent to the bracket (5), the second catch (301) being located in an opening (104) in the bottom of the recess (103);

the bracket (5) is provided with a second clamping hole (502), and the second clamping buckle (301) is clamped with the second clamping hole (502).

12. An electronic device, characterized in that the electronic device comprises a dual key structure according to any one of claims 1-11.

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