CN212907522U

CN212907522U - Rotary key assembly and electronic equipment

Info

Publication number: CN212907522U
Application number: CN202021767159.3U
Authority: CN
Inventors: 栾庆蕾
Original assignee: Goertek Techology Co Ltd
Current assignee: Qingdao Suiyun Electronic Technology Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-04-06
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a rotation key subassembly and electronic equipment, rotation key subassembly includes: the circuit board comprises a key, a rotating cap, a support and a circuit board, wherein a circumferential limiting structure for realizing synchronous rotation of the support and the rotating cap is arranged between the support and the rotating cap; the circuit board is provided with a switch key and a plurality of electric contacts which are circumferentially arranged at intervals; the key is used for triggering the switch key, the lower end face of the support is provided with a metal elastic sheet, and the metal elastic sheet is provided with an elastic sheet contact which protrudes downwards and can be matched and connected with the electric contact. The multifunctional operation of the keys can be realized, the number of the keys is reduced, the manufacturing cost is reduced, and the miniaturization of electronic equipment is facilitated; by arranging the circumferential limiting structure, the synchronous rotation of the bracket and the screw cap is realized, the contact between the elastic sheet contact and the electric contacts with different functions on the circuit board can be realized, and the connection of a circuit is realized through the metal elastic sheet; and the key is pressed downwards to be used for conducting the circuit, so that the corresponding function is realized.

Description

Rotary key assembly and electronic equipment

Technical Field

The utility model belongs to the technical field of wearing equipment, concretely relates to rotation button subassembly and intelligent wearing equipment.

Background

With the rapid development and progress of the electronic industry, various electronic products have been widely used in daily life, and provide users with more diversified functional choices. The functional selection of these electronic products usually requires a peripheral input device of the electronic product, so that a user can input and operate commands through the peripheral input device.

Electronic equipment among the prior art, especially, the intelligence field of wearing, the product is more and more little, the function is more and more powerful, often there are a plurality of buttons to arrange in the outside of product, like emerging outdoor exercises equipment motion wrist-watch recently, for realizing the multi-functional of wrist-watch, be provided with a plurality of buttons, and the overall arrangement of button on the shell, 2-5 buttons usually have, the button is arranged peripherally, the structure is complicated and the button is numerous, operate inconvenient when using, and because the button increases and lead to the product structure grow, the space that occupies is big, the cost is improved, be unfavorable for the light of electronic product, it is thin, short, little development direction.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to foretell problem among the prior art, provide a rotation button subassembly for realize the multi-functional operation of button, be favorable to reducing the quantity of button, be favorable to reducing manufacturing cost, be favorable to electronic equipment's miniaturization.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

a rotary key assembly, comprising:

a key which can be arranged in an up-and-down moving way;

the rotary cap is rotatably sleeved on the outer side of the key;

a circumferential limiting structure for realizing synchronous rotation of the support and the screw cap is arranged between the support and the screw cap;

the circuit board is positioned below the bracket and is provided with a switch key and a plurality of electric contacts which are circumferentially arranged at intervals;

the key is used for triggering the switch key, the lower end face of the support is provided with a metal elastic sheet, and the metal elastic sheet is provided with an elastic sheet contact which protrudes downwards and can be matched and connected with the electric contact.

Furthermore, the circumferential limiting structure is characterized in that the upper end of the support is provided with a limiting groove with a non-circular inner end surface, the lower end of the screw cap is provided with a limiting column part matched with the limiting groove, and the limiting column part is positioned in the limiting groove.

Furthermore, a first limiting groove is formed between the lower end of the screw cap body and the limiting column part, and the upper part of the limiting groove is located in the first limiting groove.

Furthermore, the screw cap is provided with a screw cap body which is arranged at an interval with the key, the lower part of the screw cap body extends inwards and is sleeved on an inward extending part outside the key and a limiting column part which extends downwards along the lower end of the inward extending part.

Furthermore, a clamp spring groove is formed in the outer circumference of the key, a key clamp spring is assembled in the clamp spring groove, the radial size of the key clamp spring is larger than that of the clamp spring groove, and the limiting column part is located on the front side of the key clamp spring.

Furthermore, a first sealing ring is arranged between the key and the screw cap, and the first sealing ring is positioned in a containing cavity defined by the screw cap body and the key.

Furthermore, the outside cover of button is equipped with gasket and spring, the upper end of button is equipped with the button cap that radial extension set up, the spring is located between gasket and the button cap.

Further, the gasket is located between the first sealing ring and the spring.

Furthermore, the support is provided with a through hole for the lower end of the key to pass through, and the on-off key is located below the through hole.

Based on foretell rotary key subassembly, the utility model also provides an electronic equipment with this rotary key subassembly for realize the multi-functional operation of button, be favorable to reducing the quantity of button, be favorable to reduce cost, be favorable to electronic equipment's miniaturization.

An electronic device comprises a shell and the rotary key assembly assembled on the shell.

Furthermore, a mounting hole is formed in the shell, the rotary key assembly is located in the mounting hole, and a second sealing ring is arranged between the rotary cap and the inner end face of the mounting hole.

Further, the upper end of mounting hole is equipped with the first spacing platform of outside extension, the screw cap has the screw cap body and follows the outside extension portion of the up end of screw cap body, the extension portion is located first spacing platform department.

Furthermore, the screw cap is also provided with a hand screw part which is bent upwards and extends along the outer end of the extension part.

Furthermore, a fixed support used for fixing the circuit board is arranged in the shell, two damping columns which are oppositely arranged are arranged on the fixed support, a limiting edge which extends outwards is arranged on the support, and a plurality of gear grooves matched with the damping columns are arranged on the limiting edge at intervals.

Compared with the prior art, the utility model discloses an advantage is with positive effect: the multifunctional operation of the keys can be realized, the number of the keys is reduced, the manufacturing cost is reduced, and the miniaturization of electronic equipment is facilitated; by arranging the circumferential limiting structure, the synchronous rotation of the bracket and the screw cap is realized, the contact between the elastic sheet contact and the electric contacts with different functions on the circuit board can be realized, and the connection of a circuit is realized through the metal elastic sheet; and the key is pressed downwards to be used for conducting the circuit, so that the corresponding function is realized.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.

Drawings

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

Fig. 1 is a schematic structural diagram of an embodiment of a rotary key assembly according to the present invention;

fig. 2 is a schematic cross-sectional view of the assembled rotary key assembly of fig. 1;

FIG. 3 is an enlarged schematic view of the key shown in FIG. 1;

FIG. 4 is an enlarged schematic view of the screw cap of FIG. 1;

FIG. 5 is an enlarged schematic view of the stent of FIG. 1;

FIG. 6 is a schematic view of the structure of FIG. 5 at another angle;

FIG. 7 is an enlarged schematic view of the circuit board of FIG. 1;

FIG. 8 is a schematic view of the circuit board after being mounted to the mounting bracket;

FIG. 9 is a schematic view of the structure of the bracket cooperating with the damping post;

fig. 10 is a schematic diagram of an assembly process during assembly of the rotary key assembly;

fig. 11 is a schematic view of another assembly process in assembling the rotary key assembly;

fig. 12 is a structural view showing still another assembly process in assembling the rotary key assembly.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

In the description of the present invention, it should be noted that the direction close to the axis of the rotary key assembly is "inside", otherwise "outside"; the direction of pressing the key is taken as down, otherwise, the direction is taken as up; the terminology is for the purpose of describing the invention only and is not intended to be limiting of the invention since it is not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; 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.

Referring to fig. 1-12, the present invention provides an embodiment of a rotary key assembly, in which the electronic device in this embodiment is a smart watch, the smart watch has a housing 100 and a battery 200 located in the housing 100, and in other embodiments, the electronic device may be other electronic devices.

A rotary key assembly comprising: the key 10, the screw cap 20, the bracket 30 and the circuit board 40, the key 10 can move up and down to realize the pressing function; the rotary cap 20 is rotatably sleeved on the outer side of the key 10 and is used for realizing the rotating function; a circumferential limiting structure for realizing synchronous rotation of the support 30 and the screw cap 20 is arranged between the support 30 and the screw cap 20, and the support 30 is driven to synchronously rotate together when the screw cap 20 rotates; the circuit board 40 is positioned below the bracket 30, the circuit board 40 is fixedly arranged, and the circuit board 40 is provided with a switch key 41 and a plurality of electric contacts 42 which are circumferentially arranged at intervals; the key 10 is used for triggering the switch key 41, the lower end face of the support 30 is provided with a metal elastic sheet 35, an elastic sheet contact 351 which protrudes downwards is arranged on the metal elastic sheet 35, and the elastic sheet contact 351 can be matched and connected with the electric contact 42. The multifunctional operation of the keys 10 can be realized, which is beneficial to reducing the number of the keys 10, reducing the manufacturing cost and being beneficial to the miniaturization of electronic equipment; by arranging the circumferential limiting structure, the synchronous rotation of the bracket 30 and the screw cap 20 is realized, the contact between the elastic sheet contact 351 and the electric contacts 42 with different functions on the circuit board 40 can be realized, and the connection of the circuit is realized through the metal elastic sheet 35; by pressing the key 10 downwards for the conduction of the circuit, the corresponding function is realized.

Referring to fig. 5 to 7, in this embodiment, the circuit board 40 is preferably configured as an FPC board, the switch key 41 is a dome key disposed on the circuit board 40, the plurality of electrical contacts 42 are circumferentially spaced and centered on the switch key 41, two electrical contacts 42 disposed in a same circuit and opposite to each other in a radial direction are located in the same circuit, the center of the switch key 41 is located on an axis of the screw cap 20, a connecting line of two elastic sheet contacts 351 in the same circuit on the metal elastic sheet 35 passes through the axis of the screw cap 20, and the screw cap 20 is rotated to drive the bracket 30 and the screw cap 20 to rotate synchronously, so that the two elastic sheet contacts 351 are in contact with the two electrical contacts 42, and the circuit is connected.

The bracket 30 has a bracket body 31 and a limit groove 32 with a non-circular inner end surface is arranged at the upper end of the bracket 30, a through hole 311 communicated with the limit groove 32 is arranged at the center of the bracket body 31, the through hole 311 is penetrated by the pressing column 13 at the lower end of the key 10, and the switch key 41 is positioned below the through hole 311. The bracket body 31 is provided with a limiting edge 312 extending outwards, and a plurality of gear grooves 313 are arranged on the limiting edge 312 at intervals.

Referring to fig. 2 and 4, the screw cap 20 has a cylindrical screw cap body 21 sleeved outside the key 10, the screw cap body 21 and the key 10 are arranged at an interval, an accommodating cavity 29 is enclosed between the screw cap body 21 and the key 10, the screw cap 20 further has an inward extending portion 22 extending inward from the lower portion of the screw cap body 11 and sleeved outside the key 10, and a position-limiting column portion 23 extending downward from the lower end of the inward extending portion 22. The bracket 30 is located on the underside of the screw cap 20.

In order to realize the synchronous rotation of the screw cap 20 and the support 30, the circumferential limiting structure between the screw cap 20 and the support 30 can have various structural forms, in this embodiment, the circumferential limiting structure is a limiting groove 32 formed in the upper end of the support 30, a limiting column part 23 formed in the lower end of the screw cap 20, the limiting column part 23 is matched with the limiting groove 32, the inner end face of the limiting groove 32 is a non-circular structure, and the outer end face of the limiting column part 23 is a matched non-circular structure, so that when the screw cap 20 rotates, the support 30 can be driven to rotate synchronously.

The screw cap 20 can rotate and cannot move in the vertical direction, and the downward limit of the screw cap 20 in the vertical direction is provided with two positions, namely, a mounting hole 101 is formed in the shell 100 of the smart watch, the rotary key assembly is mounted in the mounting hole 101, and the circuit board 40 is fixed on the battery bracket 200; the upper end of the mounting hole 101 is provided with a second limiting table 102 extending outwards, the screw cap 20 is provided with an extending part 24 extending outwards along the upper end face of the screw cap body 21, the extending part 24 is positioned at the first limiting table 102, and the first limiting table 102 can block the first limiting table 102 from moving downwards; the screw cap 20 further has a hand screw portion 25 extending along the outer end of the extension portion 24 and bent upward for performing a rotating operation of the screw cap 20. Secondly, a first limit groove is formed between the lower end of the screw cap body 21 and the limit column part 23, and the upper part of the limit groove 32 is positioned in the first limit groove. The outside cover of screw cap body 21 is equipped with screw cap jump ring 28, is equipped with in mounting hole 101 with screw cap jump ring 28 assorted limit structure, realizes the spacing to the ascending direction of screw cap 20.

Referring to fig. 3 and 11, the key 10 is movable in the up-down direction, and for the pressing and resetting of the key 10, the key 10 has a key body 11, a key cap 12 extending radially along the upper end of the key body 11, and a pressing column 13 extending downwardly along the lower end of the key body 11; a snap spring groove 111 is formed in the outer circumference of the key body 11 of the key 10, a key snap spring 19 is assembled in the snap spring groove 111, the radial dimension of the key snap spring 19 is larger than that of the snap spring groove 11, namely, a part of the key snap spring 19 in the radial direction is positioned in the snap spring groove 111, a part of the key snap spring extends out of the snap spring groove 111, and the limiting column part 23 is positioned at the front side of the key snap spring 19; a limitation of the upper limit of the range of motion of the key 10 is achieved.

A first sealing ring 18, a gasket 17 and a spring 16 are arranged between the key 10 and the screw cap 20, and the first sealing ring 18, the gasket 17 and the spring 16 are all positioned in an accommodating cavity 29 enclosed by the screw cap body 21 and the key body 11. The spring 16 is positioned between the gasket 17 and the key cap 12, the gasket 17 is positioned between the first sealing ring 18 and the spring 16, and the inward extending part 22 is the lower end of the accommodating cavity 29, so that when the key 10 is pressed downwards, the key 10 moves downwards, the spring 16 is compressed, and the pressure is transmitted to the inward extending part 22; the first sealing ring 18 is arranged to realize the sealing between the key 10 and the screw cap 20; the washer 17 is arranged to receive the force applied by the lower end of the spring 16.

A second sealing ring 27 is provided between the screw cap 20 and the inner end surface of the mounting hole 101 for sealing between the screw cap 20 and the mounting hole 101. A battery support 200 is arranged in a shell 100 of the intelligent watch, a fixing support 201 used for fixing the circuit board 40 is arranged on the battery support 200, and two damping columns 202 which are oppositely arranged and extend upwards are arranged on the fixing support 201; the bracket 30 is provided with a limiting edge 312 extending outwards, a plurality of gear grooves 313 are arranged on the limiting edge 312 at intervals, and the gear grooves 313 are matched with the damping columns 202; by rotating the screw cap 20, the damping cylinder 202 can be sequentially matched with a plurality of different gear slots 313, that is, the rotating screw cap 20 has a corresponding rotation stop position, so as to realize different functions of the key. The up-and-down movement can be realized by pressing the key 10, so that the on-off key 41 is activated; the rotating cap 20 is rotated to realize rotating action, and the bracket 30 is driven to realize switching of different functional circuits of the intelligent watch;

referring to fig. 10-12, the assembly of the rotary key assembly includes the steps of:

s10, sleeving a spring 16, a gasket 17 and a first sealing ring 18 on the key 10 to form a key assembly;

s20, sleeving the screw cap 20 on the key assembly, then installing the key snap spring 19 in the snap spring groove 111 of the key 10, and assembling the second sealing ring 27 on the screw cap 20; forming a screw cap assembly;

s30, assembling the screw cap assembly to the mounting hole 101 of the machine shell 100, and mounting the screw cap clamp spring 28;

s40, sleeving the support 30 on the limiting column part 23 at the lower part of the screw cap 20; the rotating screw cap 20 can control the bracket 30 to rotate; when the key 10 is pressed, the pressing column 13 at the end of the key 10 moves up and down through the through hole 314 on the bracket 30;

s50, the circuit board 40 is assembled to the fixing bracket 201 of the battery bracket 200, and the battery bracket 200 is assembled into the case 100.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; 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 in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. A rotary key assembly, comprising:

a key which can be arranged in an up-and-down moving way;

the rotary cap is rotatably sleeved on the outer side of the key;

2. The rotary key assembly as claimed in claim 1, wherein the circumferential limiting structure includes a limiting groove having a non-circular inner end surface at an upper end of the support, and a limiting post matching with the limiting groove at a lower end of the screw cap, and the limiting post is located in the limiting groove.

3. The rotary key assembly of claim 2, wherein a first limiting groove is formed between the lower end of the screw cap body and the limiting post, and an upper portion of the limiting groove is located in the first limiting groove.

4. The rotary key assembly as claimed in claim 2, wherein the screw cap has a screw cap body spaced apart from the key, an inward extending portion extending inward from a lower portion of the screw cap body and fitted over an outer side of the key, and a position-limiting post extending downward along a lower end of the inward extending portion.

5. The rotary key assembly of claim 2, wherein a snap spring groove is formed in an outer circumference of the key, a key snap spring is assembled in the snap spring groove, a radial dimension of the key snap spring is greater than a radial dimension of the snap spring groove, and the position-limiting column is located at a front side of the key snap spring.

6. The rotary key assembly according to any one of claims 1 to 5, wherein the bracket is provided with a through hole for passing the lower end of the key, and the on-off key is located below the through hole.

7. An electronic device having a housing, the rotary key assembly of any one of claims 1-6 mounted to the housing.

8. The electronic device of claim 7, wherein a mounting hole is defined in the housing, a first limiting platform extending outward is disposed at an upper end of the mounting hole, the cap has a cap body and an extending portion extending outward along the upper end of the cap body, and the extending portion is located at the first limiting platform.

9. The electronic device of claim 8, wherein the screw cap further comprises a hand screw portion extending along an outer end of the extension portion and bent upward.

10. The electronic device of claim 7, wherein a fixing bracket for fixing the circuit board is disposed in the housing, two damping posts are disposed on the fixing bracket in an opposite manner, a limiting edge is disposed on the bracket and extends outward, and a plurality of gear slots are disposed on the limiting edge at intervals and are matched with the damping posts.