CN217983159U - Key structure and electronic product - Google Patents

Abstract

The utility model provides a button structure and electronic product, wherein the button structure is applied to in the electronic product, including at least one touch switch, base and button lid, the base includes installation face, draw-in groove, elastic construction and at least one and presses the button post, and the installation face sets up in touching the switch top, has seted up counterpoint hole, and the draw-in groove is seted up on the installation face, and the elastic construction sets up in counterpoint hole department to can the atress towards touching the switch motion, set up in one side that the switch was touched to the elastic construction orientation according to the button post, and move along with the elastic construction. The button cover is arranged on one side of the mounting surface, which deviates from the tact switch, and is matched with the clamping groove through a buckle. The key cover further comprises at least one key bone position, the key bone position is arranged on one side of the elastic structure, which deviates from the light touch switch, and the key bone position corresponds to the position of the key column. The embodiment of the utility model has the advantages of simple structure, low in production cost can adapt to miniaturized production demand, is fit for large-scale production, easily assembles, can improve production efficiency, is difficult for taking place the card key moreover.

Description

Key structure and electronic product

Technical Field

The utility model belongs to the technical field of the electronic product and accessory technique and specifically relates to a button structure and electronic product.

Background

The key structure is a common spare part in electronic products, and with the refinement and miniaturization of electronic products, the available space of the key structure is more and more limited, and the miniaturization processing needs to be carried out on the key structure, in particular to a combined key structure for realizing multiple functions. When a combined key structure with more processing functions is processed, the solutions of most of the existing electronic products are mainly rear-mounted cantilever arm keys, seesaw type keys and embedded keys, but the key structures have certain defects.

The rear-mounted cantilever key generally utilizes a hot melting process to fix the key structure on the shell from the inside, and the key structure is tightly combined with an electronic product, but the process is complex, the production cost is high, and the production efficiency cannot be effectively improved. The seesaw type key is easy to assemble, but can only be applied to a key structure combined by two keys due to structural limitation, and is easy to mistakenly touch a plurality of keys, such as four functional keys, and has larger limitation. The embedded key has a large requirement on the internal space of an electronic product, cannot meet the requirement of miniaturization improvement on a key structure, and has a complex structure and high production material cost. Therefore, the key structure of the electronic product needs to be improved.

The statements in the background section are merely prior art as they are known to the inventors and do not, of course, represent prior art in the field.

SUMMERY OF THE UTILITY MODEL

To one or more defects among the prior art, the embodiment of the utility model provides a button structure is applied to in the electronic product, button structure includes:

the touch switch is in signal connection with the circuit board;

a base, the base comprising:

the mounting surface is arranged above the tact switch, and a registration hole is formed in the mounting surface;

the clamping groove is formed in the mounting surface;

the elastic structure is arranged at the aligning hole and is configured to be capable of being stressed to move towards the tact switch; and

the key post is arranged on one side, facing the light touch switch, of the elastic structure and moves along with the elastic structure; and

the button lid, the button lid set up in the installation face deviates from one side of dabbing the switch, the button lid includes:

the buckle is matched with the clamping groove; and

and the key bone position is arranged on one side of the elastic structure, which deviates from the light touch switch, and corresponds to the position of the key column.

According to an aspect of the utility model, wherein the draw-in groove is for running through the knot position hole of installation face, the buckle includes at least one elastic arm, the elastic arm by the draw-in groove passes, and the joint in the installation face orientation dab one side of switch.

According to the utility model discloses an aspect, wherein the cantilever beam structure of elastic arm for perpendicular to installation face, the lateral surface of elastic arm with the medial surface laminating or the interference fit in knot position hole.

According to an aspect of the present invention, the base further includes a key pad, the key pad is located on a side of the elastic structure away from the tact switch, and the key pad corresponds to the key post; the elastic structure is provided with pre-pressure, so that the buckle is attached to one side, facing the tact switch, of the mounting surface.

According to one aspect of the utility model, the key structure comprises a plurality of tact switches, and the tact switches are positioned in the circumferential direction of the buckling hole; the key bone position is of a cross-shaped or T-shaped structure; and a chamfer is processed on one side of the key column facing the tact switch.

According to an aspect of the present invention, wherein the mounting surface is provided with a sinking groove, and the alignment hole and the clamping groove are provided on a bottom surface of the sinking groove; the key cover is arranged in the sinking groove in a sinking way.

According to the utility model discloses an aspect, wherein the button lid with the shape of heavy groove suits, and the circumference of button lid still is provided with the lateral wall, the lower edge of lateral wall with it predetermines the gap to have between the bottom surface of heavy groove.

According to the utility model discloses an aspect, wherein still be provided with limit structure on the installation face, the button lid orientation one side of installation face is provided with the cooperation structure, limit structure with the cooperation structure cooperatees, in order to avoid the button lid for the installation face is rotatory.

According to the utility model discloses an aspect, wherein the button cover still includes the decorative cover, the mark is predetermine to having on the decorative cover, predetermine the mark the position with the key-press bone position is corresponding.

According to an aspect of the present invention, the present invention further comprises an electronic product, wherein the electronic product comprises the key structure as described above.

Compared with the prior art, the embodiment of the utility model provides a button structure, in the base was packed into by the draw-in groove position department in the installation face to the button lid resets through elastic construction realization, base and button lid simple structure, low in production cost can adapt to miniaturized production demand. The key cover has strong plasticity, can be processed according to specific requirements, has strong reproducibility and is suitable for large-scale production. Meanwhile, the front-mounted assembling method is easy to operate, the whole key structure is simple to assemble, the production efficiency of the key structure can be improved, the production cost is reduced, the front-mounted key structure is not prone to being clamped, and the use experience of a user can be improved. The utility model discloses still include the embodiment of an electronic product, use aforementioned button structure.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is an exploded cross-sectional view of a key structure according to an embodiment of the present invention;

fig. 2A-2C are schematic views of a base in an embodiment of the invention;

3A-3D are schematic diagrams of a key cover in an embodiment of the invention;

fig. 4 is a schematic diagram of an electronic product in an embodiment of the invention;

fig. 5 is a schematic cross-sectional view of an electronic product according to an embodiment of the present invention.

And (3) appendage marking: 100. the key structure comprises a key structure 110, a tact switch 120, a base 121, a mounting surface 121-1, an alignment hole 121-2, a limiting structure 122, a clamping groove 123, an elastic structure 124, a key column 125, a key table 130, a key cover 131, a buckle 131-1, an elastic arm 132, a key bone position 133, a side wall 134, a matching structure 135, a decorative surface 135-1, a mark 136, a button position 1 and an electronic product.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection, either mechanically, electrically, or in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Fig. 1 shows a specific structure of a key structure 100 according to an embodiment of the present invention, wherein the key structure 100 is applied in an electronic product, and the key structure 100 includes at least one tact switch 110, a base 120, and a key cover 130.

The tact switch 110 is in signal connection with a circuit board of the electronic product, and preferably, the tact switch 110 is directly disposed on the circuit board and is used for controlling the electronic product to perform a preset action or implement a preset function. In the key structure of the embodiment, a plurality of touch switches 110 may be disposed at the same time, and different touch switches 110 may respectively implement different functions.

As shown in fig. 1, the base 120 includes a mounting surface 121, a slot 122, an elastic structure 123 and at least one key post 124, and particularly, the base 120 may be a part of a housing of the electronic product, for example, disposed at a position of a predetermined key in the electronic product. The mounting surface 121 is disposed above the tact switch 110, and the vertical direction is based on that shown in fig. 1 in this embodiment, and the relative position relationship between the mounting surface 121 and the tact switch 110 may change with the change of the pose of the electronic product. The mounting surface 121 has alignment holes 121-1 (shown in fig. 2A and 2B) formed therein. The card slot 122 is formed on the mounting surface 121, the card slot 122 is used for matching with the key cover 130, and preferably, the card slot 122 is formed as a fastening hole penetrating through the mounting surface 121. The elastic structure 123 is disposed at the alignment hole 121-1 of the mounting surface 121, and the elastic structure 123 can be forced to move toward the tact switch 110 to trigger the tact switch 110. The key post 124 is disposed on a side of the elastic structure 123 facing the tact switch 110, and moves together with the elastic structure 123 to approach or separate from the tact switch 110. According to the preferred embodiment of the present invention, the key posts 124 correspond to the positions and the number of the tact switches 110.

When the elastic structure 123 is stressed, the elastic structure 123 deforms elastically, and drives the key post 124 to move toward the direction close to the tact switch 110, and when the stress of the elastic structure 123 is reduced or the external force is removed, the elastic structure 123 resets by elasticity, and drives the key post 124 to move toward the direction far away from the tact switch 110, so that the tact switch 110 is switched between two states.

The key cover 130 is disposed on a side of the mounting surface 121 facing away from the tact switch 110, and specifically, the key cover 130 includes a buckle 131 and at least one key rib 132, wherein the buckle 131 is matched with the slot 122, so that the key cover 130 is clamped on the base 120. The key rib position 132 is disposed on a side of the elastic structure 123 facing away from the tact switch 110 and corresponds to the position of the key post 124. The key cover 130 is fastened on the outer side of the mounting surface 121, and can be directly used as a component operated by a user, for example, when the key cover 130 is pressed, the key rib 132 drives the elastic structure 123 and the key post 124 to trigger the tact switch 110, and after the pressure is removed, the key cover 130 is reset under the action of the elastic structure 123, so that the tact switch 110 is controlled by the user.

According to the embodiment of the present invention, as shown in fig. 1, fig. 2A and fig. 2B, the slot 122 is a fastening hole penetrating through the mounting surface, preferably, an inclined plane facing the center of the fastening hole can be provided on one side of the slot 122 departing from the tact switch 110, so as to facilitate the installation of the buckle 131 in the button cover 130 and provide a certain tilt margin for the buckle 131. As shown in fig. 3A and 3C, the latch 131 in this embodiment includes at least one elastic arm 131-1, and the elastic arm 131-1 passes through the slot 122 and is latched on a side of the mounting surface 121 facing the tact switch 110. In the preferred embodiment of the present invention, the slot 122 is a circular through hole, the buckle 131 is composed of a plurality of elastic arms 131-1 to form an approximately circular outer side surface, and the circular outer side surface is matched with the inner side surface of the slot 122, and the buckle 131 can be inserted into the slot 122. The extending direction of the elastic arm 131-1 is perpendicular to the mounting surface 121, and the outer side surface of the elastic arm 131-1 is attached to the inner side surface of the buckle 122, or is in interference fit, that is, when the buckle 131 is matched with the slot 122, the elastic arm 131-1 is subjected to a smaller extrusion force, and the extrusion force faces to the central position of the through hole of the slot 122, so as to improve the tightness of the combination of the key cover 130 and the base 120.

Further, the key rib position 132, the key post 124 and the tact switch 110 are located on the circumferential outer side of the buckle 131, the position of the elastic arm 131-1 corresponds to the position of the key rib position 132, for example, on the radial extension line of the buckle 131, when the key cover 130 is pressed, the force-bearing position of the key cover 130 moves towards the tact switch 110, the key cover 130 tilts towards the pressing direction, correspondingly, the elastic arm 131-1 in the pressing direction presses the card slot 122, the elastic arm 131-1 accumulates elastic potential energy, and when the pressure applied to the key cover 130 is removed, the key cover 130 is reset under the combined action of the elastic arm 131-1 and the elastic structure 123. Meanwhile, the elastic arm 131-1 can also prevent the buckle 131 and the slot 122 from being directly and rigidly extruded when the key cap 130 is pressed, so that the key structure 100 is prevented from being damaged.

According to the preferred embodiment of the present invention, as shown in fig. 2A-2C, the base 120 further includes a key pad 125, the key pad 125 is located on one side of the elastic structure 123 away from the tact switch 110, and the key pad 125 corresponds to the position of the key post 124. The key platform 125 is used for receiving the key rib position 132, so that the contact area is increased, the stress on the elastic structure 123 is uniform, and the elastic structure 123 is prevented from deforming as much as possible to influence the service life of the key structure 100. In the preferred embodiment of the present invention, a spring plate may be used as the elastic structure 123, for example, as shown in fig. 2A and fig. 2B, one end of the spring plate is fixedly connected to the mounting surface 121, the other end of the spring plate is suspended, the button stage 125 and the button post 124 are disposed near the suspended end of the spring plate, the spring plate is perpendicular to the cantilever direction (extending direction of the spring plate), or after having a certain angle of pressure with the cantilever direction, the spring plate is bent to drive the button post 124 to move toward the direction of the tact switch 110. According to the preferred embodiment of the present invention, the key structure 100 includes a plurality of tact switches 110, and the tact switches 110 are located in the circumferential direction of the slot 122, for example, the key structure 100 includes 4 tact switches 110 and is uniformly disposed in the circumferential direction of the slot 122, and correspondingly, the key post 124, the key platform 125 and the key rib position 132 all have 4 same numbers, which correspond to the positions of the 4 tact switches 110 respectively. Further, the number of the elastic arms 131-1 of the latch 131 is 4, and the elastic direction of the elastic arms 131-1 deformed by pressure corresponds to the key rib position 132, and when the key cover 130 is pressed, the key cover 130 is tilted toward the corresponding direction, and the tact switch 110 is pressed through the key rib position 132, the key table 125 and the key post 124.

Preferably, the elastic structure 123 has a pre-pressing force to make the buckle 131 abut against the side of the mounting surface 121 facing the tact switch 110, for example, as shown in fig. 3A and 3C, the hanging end of the elastic arm 131-1 has a wedge buckle, and under the pre-pressing force in the elastic structure 123, the plane of the side of the wedge buckle facing the elastic arm 131-1 abuts against the side of the mounting surface 121 facing the tact switch 110, so as to prevent the key cover 130 from moving along the vertical direction of the mounting surface 121 under the condition of slight disturbance, thereby improving the compactness and stability of the whole key structure 100.

In some embodiments of the present invention, the key rib position 132 is a cross-shaped or T-shaped structure, as shown in fig. 3A and 3B, a reinforcing rib may be further disposed on the key rib position 132 to improve the structural stability of the key rib position 132. Further, a chamfer is formed on a side of the key post 124 facing the tact switch 110, as shown in fig. 1 and 2C, so that when the key post 124 is inclined at a certain angle, the pressure applied to the tact switch 110 is prevented from being too high, and the tact switch 110 is protected.

As shown in fig. 1 and 2C, the mounting surface 121 is provided with a sunken groove, the alignment hole 121-1 (shown in fig. 2A and 2B) and the card slot 122 are disposed on a bottom surface of the sunken groove, and the key cover 130 is sunken in the sunken groove, so that the whole key cover 130 is flush with the top surface of the base 120 or slightly protrudes from the top surface of the base 120, thereby reducing the risk of lateral extrusion of the key cover 130. Further, the key cover 130 is adapted to the shape of the sinking groove, and the key cover 130 is integrally embedded in the sinking groove, for example, the shape of the sinking groove and the shape of the key cover 130 are both set to be circular or square. As shown in fig. 3A, a sidewall 133 is further disposed on the circumference of the key cover 130, and a preset gap is formed between a lower edge of the sidewall 133 and a bottom surface of the sinking groove to prevent the key cover 130 from being pressed due to structural extrusion, which may result in failure to reach the trigger stroke of the tact switch 110.

According to the preferred embodiment of the present invention, as shown in fig. 2A and 2B, the mounting surface 121 is further provided with a limiting structure 121-2, and one side of the key cover 130 facing the mounting surface 121 is provided with a matching structure 134, as shown in fig. 3A to 3C, the limiting structure 121-2 is matched with the matching structure 134 for avoiding the key cover 130 from rotating relative to the mounting surface 121. In a specific embodiment, the key cap 130 and the sinking groove may be arranged in a circle, and the locking groove 122 and the locking buckle 131 are arranged at the center of the circle. In order to reduce the installation difficulty and save the installation process, in this embodiment, the key bone 132 and the key stage 125 or the elastic structure 123 are not fixedly connected, but the circular key cap 130 may relatively rotate with the clamping groove 122 as an axis and the installation surface 121, so that the key bone 132 is influenced to be aligned with the key stage 125 or the key post 124, and the key fails, in this embodiment, the limiting structure 121-2 and the matching structure 134 limit the key cap 130 from rotating, specifically, a through hole may be provided in the installation surface 121 except for the center of circle, and used as the limiting structure 121-2, and a column is provided in the corresponding position of the key cap 130, and inserted into the through hole, so as to limit the key cap 130 from rotating transversely, and the limiting structure 121-2 and the matching structure 134 may also be provided in other structural types, for example, a protrusion is provided at the edge of a sunken groove of the installation surface 121, and a matching groove is provided on the side wall 133 of the key cap 130.

As shown in fig. 3D, in the preferred embodiment of the present invention, the key cover 130 further includes a decoration surface 135, the decoration surface 135 has a predetermined mark 135-1, and the position of the predetermined mark 135-1 corresponds to the key rib position 132. In this embodiment, the key cap 130 is directly operated by the user, the decoration surface 135 can have an aesthetic decoration effect, and meanwhile, the preset mark 135-1 corresponding to the tact switch 110 is disposed on the decoration surface 135, so that the user can conveniently recognize the corresponding tact switch 110, and the operation by the user is facilitated.

As shown in fig. 3A to fig. 3C, a button position 136 may also be disposed at an edge position of the key cap 130, for example, a notch is formed on a side wall 133 of the key cap 130, so that the key cap 130 is easily removed from the base 120 for replacement.

The utility model discloses still include the embodiment of electronic product 1, as shown in fig. 4 and 5, install in the electronic product 1 as in the aforesaid embodiment button structure 100, electronic product 1 specifically can be handle, remote control equipment, action bars etc. button structure 100 can include a plurality of tact switch 110 for control electronic product 1 realizes multiple different functions.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A key structure applied to an electronic product is characterized in that the key structure comprises:

the light touch switch is in signal connection with the circuit board;

a base, the base comprising:

the mounting surface is arranged above the tact switch, and alignment holes are formed in the mounting surface;

the clamping groove is formed in the mounting surface;

the elastic structure is arranged at the aligning hole and is configured to be capable of being stressed to move towards the tact switch; and

the key post is arranged on one side, facing the light touch switch, of the elastic structure and moves along with the elastic structure; and

the button lid, the button lid set up in the installation face deviates from the one side of dabbing the switch, the button lid includes:

the buckle is matched with the clamping groove; and

and the key bone position is arranged on one side of the elastic structure, which deviates from the light touch switch, and corresponds to the position of the key column.

2. The key structure of claim 1, wherein the engaging groove is an engaging hole penetrating through the mounting surface, and the engaging member includes at least one elastic arm passing through the engaging groove and engaging with a side of the mounting surface facing the tact switch.

3. The key structure of claim 2, wherein the elastic arm is a cantilever beam structure perpendicular to the mounting surface, and an outer side surface of the elastic arm is fitted or interference-fitted with an inner side surface of the fastening hole.

4. The key structure of claim 3, wherein the base further comprises a key pad located on a side of the resilient structure facing away from the tact switch, the key pad corresponding to a location of the key post; the elastic structure is provided with pre-pressure, so that the buckle is attached to one side, facing the tact switch, of the mounting surface.

5. The key structure according to claim 3, wherein the key structure comprises a plurality of tact switches, the tact switches being located in a circumferential direction of the catching holes; the key rib position is of a cross-shaped or T-shaped structure; and a chamfer is processed on one side of the key column facing the tact switch.

6. The key structure according to claim 1, wherein the mounting surface is provided with a sunken groove, and the alignment hole and the card slot are arranged on a bottom surface of the sunken groove; the key cover is arranged in the sinking groove in a sinking way.

7. The key structure according to claim 6, wherein the key cover is adapted to the shape of the sinking groove, a side wall is further disposed on the circumference of the key cover, and a predetermined gap is formed between a lower edge of the side wall and a bottom surface of the sinking groove.

8. The key structure of claim 1, wherein said mounting surface further comprises a retention structure, and wherein a side of said key cover facing said mounting surface comprises a mating structure, said retention structure cooperating with said mating structure to prevent said key cover from rotating relative to said mounting surface.

9. The key structure of claim 1, wherein the key cover further comprises a decoration surface, and the decoration surface has a predetermined mark thereon, and the position of the predetermined mark corresponds to the key rib position.

10. An electronic product, characterized in that it comprises a key structure according to any one of claims 1-9.

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