CN114093702A

CN114093702A - Key structure and wearable equipment

Info

Publication number: CN114093702A
Application number: CN202111449521.1A
Authority: CN
Inventors: 屈齐昌; 费俊宝
Original assignee: Goertek Techology Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-02-25
Anticipated expiration: 2041-11-30
Also published as: WO2023098070A1

Abstract

The invention relates to the technical field of intelligent equipment, and discloses a key structure and wearable equipment, which are applied to the wearable equipment, wherein a shell of the wearable equipment is provided with a key hole; the insulating support is arranged in the guide groove and arranged around the key shaft, and one side of the insulating support, which is back to the bottom wall of the guide groove, is provided with an isolation groove; the mounting sleeve comprises a supporting portion and an insulating portion, the supporting portion is arranged in the key hole in a penetrating mode, the supporting portion is provided with a shaft hole through which the key shaft can penetrate, the insulating portion is arranged on the inner peripheral wall of the shaft hole and is abutted with the outer peripheral wall of the key shaft in a sliding mode, and one end, close to the key cap, of the supporting portion is contained in the isolation groove. The key structure provided by the invention has high reliability of insulation isolation between the key structure and the wearable equipment shell.

Description

Key structure and wearable equipment

Technical Field

The invention relates to the technical field of intelligent equipment, in particular to a key structure and wearable equipment.

Background

Wearable equipment such as intelligent wrist-watch is widely advocated by market, for the function variety and the simple operation nature of wearable equipment such as promotion intelligent wrist-watch, many operation forms and multi-functional key structure also by the wide application in wearable equipment.

In the related technology, part of wearable equipment is provided with keys for detecting the electrocardiogram data of a user, the keys are mostly metal keys, the keys are conducted with a circuit where an electrocardiogram detection chip is located in the wearable equipment when being pressed by a finger of the user, and the electrocardiogram detection chip detects the electrocardiogram data of the user through the keys. Due to the pursuit of the user on texture, fashion and durability, the shell of the wearable device is often made of metal, and the accuracy of the heart rate of the user detected by the electrocardio detection chip is affected by the contact of the metal key and the metal shell, so that the insulation isolation between the metal key and the shell becomes particularly critical.

Disclosure of Invention

The invention mainly aims to provide a key structure, aiming at improving the reliability of insulation and isolation between a key and a wearable equipment shell.

In order to achieve the above object, the present invention provides a key structure applied to a wearable device, wherein a housing of the wearable device is provided with a key hole, and the key structure includes:

the conductive key comprises a keycap and a key shaft, the keycap is provided with a guide groove, and the key shaft is arranged on the bottom wall of the guide groove;

the insulating support is arranged in the guide groove and arranged around the key shaft, and an isolation groove is formed in one side, back to the bottom wall of the guide groove, of the insulating support; and

the installation cover, the installation cover includes supporting part and insulating part, the supporting part is worn to locate in the key hole, the supporting part is equipped with and supplies the shaft hole that the key shaft passed, insulating part is located the internal perisporium in shaft hole, and with the butt is slided to the periphery wall of key shaft, the supporting part is close to the one end of key cap hold in keep apart the inslot.

In an embodiment of the present invention, two ends of the insulating portion respectively extend toward two openings of the shaft hole, and one end of the insulating portion close to the keycap extends into the isolation groove and is spaced from the key shaft; one end of the supporting part close to the keycap is in sliding butt joint with the side wall of the isolation groove.

In an embodiment of the invention, a first limit step is arranged at one end of the insulating part close to the keycap;

the key is provided with a pressing state, when the key is in the pressing state, the supporting part is abutted and limited with the bottom wall of the isolation groove, and the first limiting step is abutted and limited with the insulating part, so that an isolation space is formed between the keycap and the shell.

In an embodiment of the present invention, the outer peripheral wall of the key shaft is provided with a second limit step;

the outer peripheral wall of the insulating support is abutted and limited with the inner peripheral wall of the guide groove, and the insulating support is positioned between the second limiting step and the bottom wall of the guide groove;

and when the pressing state is realized, part of the structure of the first limiting step is abutted against the second limiting step.

In an embodiment of the invention, one end of the supporting part close to the keycap comprises a limiting section and a guiding section which are arranged in an included angle, and the guiding section is positioned between the limiting section and the keycap;

the limiting section is abutted against the shell for limiting, and the guide section extends into the isolation groove;

one end of the insulating part close to the keycap is arranged along the inner walls of the limiting section and the guiding section to form the first limiting step.

In an embodiment of the invention, a first sealing structure is arranged on one side of the insulating part facing the limiting section;

the inner wall of spacing section and/or the inner wall of direction section is equipped with second seal structure, first seal structure with second seal structure joint.

In an embodiment of the invention, the key structure further includes an elastic member, and the elastic member is sleeved on the key shaft and is limited between the first limiting step and the bottom wall of the isolation groove.

In an embodiment of the invention, the key structure further includes a conductive bushing, and the conductive bushing is sleeved at one end of the key shaft away from the key cap;

the insulating part is including locating the isolation section of shaft hole internal perisporium to and extend and cover the supporting part dorsad the extension section of key cap one side, the extension section is located the key shaft with between the conductive bush, so that the conductive bush with form the interval space between the periphery of key hole.

In an embodiment of the invention, a third sealing structure is arranged on one side of the extending section facing the supporting part, a fourth sealing structure is arranged on one side of the supporting part facing away from the keycap, and the third sealing structure is clamped with the fourth sealing structure.

Furthermore, the present invention also proposes a wearable device, comprising:

the key comprises a shell, a key body and a key body, wherein the shell is provided with an installation cavity and a key hole communicated with the installation cavity; and

in the key structure, the supporting part of the key structure penetrates through the key hole.

The installation sleeve comprises a supporting part and an insulating part, wherein the supporting part is provided with a shaft hole through which a conductive key shaft can pass, and the insulating part is arranged on the inner peripheral wall of the shaft hole of the supporting part and extends towards two openings at two ends of the shaft hole, so that the insulating part can cover and wrap the key shaft in the shaft hole, and the insulation between the key shaft and the supporting part as well as the shell of the wearable device is realized. Simultaneously through setting up insulating support in the guide way of key cap, make the one end that the supporting part is close to the key cap hold in insulating support's isolation groove, through insulating support insulation isolation supporting part and key cap, realize the shell of supporting part and wearable equipment and the insulation between the key cap. With this, electrically conductive button is when pressing the use, under the insulating isolation of insulating part and insulating support, no matter be key shaft or key cap can not with the supporting part or wearable equipment's shell direct contact, the reliability of insulating isolation between electrically conductive button and wearable equipment shell is high, is favorable to promoting the accuracy of electrocardio data when detecting user electrocardio data through electrically conductive button.

Drawings

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

FIG. 1 is a cross-sectional view of the key structure of the present invention;

FIG. 2 is an exploded view of the key structure of the present invention;

fig. 3 is a schematic structural view of the first conductive elastic piece and the second conductive elastic piece in fig. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

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

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. The meaning of "and/or" appearing throughout is the same and is meant to encompass three juxtapositions, exemplified by "A and/or B" and including either scheme A, scheme B, or both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a key structure, which is applied to wearable equipment such as a smart watch and a smart bracelet, wherein the wearable equipment is provided with a shell 6, the shell 6 is provided with a key hole 6b, and the key structure is movably arranged in the key hole 6b in a penetrating way.

In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the key structure includes a conductive key 1, an insulating support 2, and a mounting sleeve 3, the conductive key 1 includes a key cap 11 and a key shaft 12, the key cap 11 is provided with a guide groove 111, and the key shaft 12 is provided at a bottom wall of the guide groove 111; the insulating support 2 is arranged in the guide groove 111 and surrounds the key shaft 12, and an isolation groove 2a is formed in one side, back to the bottom wall of the guide groove 111, of the insulating support 2; the mounting sleeve 3 includes a supporting portion 31 and an insulating portion 32, the supporting portion 31 is disposed through the key hole 6b, the supporting portion 31 is provided with a shaft hole 31a through which the key shaft 12 can pass, the insulating portion 32 is disposed on an inner peripheral wall of the shaft hole 31a and slidably abuts against an outer peripheral wall of the key shaft 12, and one end of the supporting portion 31 close to the key cap 11 is accommodated in the isolation groove 2 a.

In this embodiment, a housing 6 of the wearable device encloses to form an installation cavity 6a, and an electrocardiograph detection module can be arranged in the installation cavity 6a, so that the wearable device has an electrocardiograph detection function.

The conductive key 1 is made of metal, so that when a user presses the conductive key 1 with fingers, the conductive key 1 can conduct a bioelectricity signal of a human body to an electrocardio detection module in the wearable device, and detection of electrocardio data of the human body is achieved. The key cap 11 and the key shaft 12 of the conductive key 1 can be integrally formed by die casting, so that the processing procedure and cost of the conductive key 1 are saved, and the structural strength of the conductive key 1 is improved. The end face of the key cap 11, which is far away from the end of the key shaft 12, is a plane, so that the contact area between the user finger and the key cap 11 is increased when the user finger presses the key cap 11, and the accuracy and reliability of user electrocardiogram data acquisition are improved. The key shaft 12 and the key cap 11 can be coaxially arranged, so that the key cap 11 can drive the key shaft 12 to axially move when being pressed by a user finger, and the problem that the key shaft 12 and the shell 6 are easily abraded due to the fact that the key shaft 12 deviates from the axis of the key cap 11 to move and stronger extrusion and friction effects are generated between the key shaft 12 and the hole wall of the key hole 6b is avoided. The key cap 11 may have a circular or polygonal longitudinal cross-sectional shape cut in the vertical direction of fig. 1, and the key shaft 12 may have a circular or polygonal longitudinal cross-sectional shape cut in the vertical direction of fig. 1.

The mounting sleeve 3 is sleeved on the periphery of the key shaft 12 and used for mounting the key shaft 12 and providing guidance for the movement of the key shaft 12, the supporting part 31 and the insulating part 32 of the mounting sleeve 3 can be of a columnar structure, and the longitudinal section shape formed by cutting the mounting sleeve 3 and the insulating part 32 in the vertical direction of fig. 1 is matched with the longitudinal section shape of the key shaft 12. The supporting portion 31 may be made of metal material, so that the supporting portion 31 has higher structural strength to reliably support and limit the conductive key 1. The insulating portion 32 is integrally nested in the inner peripheral wall of the shaft hole 31a of the supporting portion 31, the insulating portion 32 surrounds and forms a through cavity coaxial with the shaft hole 31a, and the key shaft 12 of the conductive key 1 penetrates through the through cavity. The insulating portion 32 may be provided to partially cover the inner peripheral wall of the shaft hole 31a, as long as the insulating portion 32 separates the key shaft 12 from the support portion 31, and the insulating separation between the support portion 31 and the key shaft 12 is achieved. The insulating part 32 can be made of insulating materials such as plastic and acrylic, and the insulating part 32 can also be made of materials with low friction coefficient, so that the friction resistance between the isolation section 321 of the insulating part 32 and the key shaft 12 and between the extension section 322 of the insulating part 32 and the key cap 11 is reduced, and the smoothness of the conductive key 1 during pressing is improved. The insulating part 32 can be integrally injection-molded on the supporting part 31 in an insert injection molding manner, so that the insulating part 32 is tightly attached to the hole wall of the shaft hole 31a of the supporting part 31, the reliability of waterproof sealing between the supporting part 31 and the insulating part 32 can be ensured, and moisture is prevented from passing between the supporting part 31 and the insulating part 32 and entering the wearable device.

The insulating support 2 is used for insulating the isolation support 31 and the key cap 11, the whole insulating support 2 can be in an annular structure, and the insulating support 2 can be sleeved on the key shaft 12 and is limited in the guide groove 111 of the key cap 11. The insulating support 2 isolates the side wall and the bottom wall of the guide groove 111 from the supporting part 31, so that the supporting part 31 is prevented from being in contact conduction with the keycap 11 when the conductive key 1 is pressed for use. Insulating support 2 accessible insert mode of moulding plastics on key cap 11 integrative injection moulding to promote insulating support 2 and key cap 11 and be connected the inseparability and the reliability of cooperation. The insulating support 2 can also be clamped in the guide groove 111 in a clamping manner, so that the insulating support 2 is limited between the key shaft 12 and the side wall of the guide groove 111, and the reliable installation and fixation of the insulating support 2 are realized. The insulating portion 32 may be made of an insulating material such as plastic, acrylic, etc., and is not limited herein.

In practical use of the key structure, a user presses the key cap 11 of the conductive key 1, the key shaft 12 of the conductive key 1 moves along the axial direction of the shaft hole 31a, the side wall of the isolation groove 2a is in sliding contact with the surface of the supporting portion 31 opposite to the insulating portion 32, and the key cap 11 moves close to the housing 6 under the guiding action of the supporting portion 31 and the insulating portion 32. When the conductive key 1 is fully pressed to bring the key structure into a pressed state, one end of the supporting portion 31 located in the isolation groove 2a abuts against the insulating support 2, and a certain distance is formed between the housing 6 and the key cap 11. Thus, the support 31, the case 6, and the key top 11 can be insulated and isolated by the insulating support 2, and the support 31, the case 6, and the key shaft 12 can be insulated and isolated by the insulating portion 32.

The mounting sleeve 3 of the embodiment includes a supporting portion 31 and an insulating portion 32, the supporting portion 31 is provided with a shaft hole 31a through which the key shaft 12 of the conductive key 1 can pass, the insulating portion 32 is disposed on an inner peripheral wall of the shaft hole 31a of the supporting portion 31, and extends to two openings at two ends of the shaft hole 31a, so that the insulating portion 32 can cover and wrap the key shaft 12 located in the shaft hole 31a, and insulation between the key shaft 12 and the supporting portion 31 and the shell 6 of the wearable device is realized. Meanwhile, one end of the supporting part 31 close to the keycap 11 is accommodated in the isolation groove 2a of the insulating support 2 by arranging the insulating support 2 in the guide groove 111 of the keycap 11, and the supporting part 31 and the keycap 11 are isolated from each other by insulating the insulating support 2, so that the supporting part 31 and the shell 6 of the wearable device are isolated from the keycap 11. Therefore, when the conductive key 1 is pressed for use, under the insulation isolation of the insulation part 32 and the insulation support 2, no matter the key shaft 12 or the key cap 11 is not in direct contact with the support part 31 or the shell 6 of the wearable device, the reliability of the insulation isolation between the conductive key 1 and the shell 6 of the wearable device is high, and the accuracy of detecting the electrocardiogram data of the user through the conductive key 1 is improved.

In an embodiment of the present invention, as shown in fig. 1 and 2, two ends of the insulating portion 32 extend toward two openings of the axial hole 31a, respectively, and one end of the insulating portion 32 close to the keycap 11 extends into the isolation groove 2a and is spaced from the key shaft 12; one end of the support 31 near the key top 11 is in sliding contact with the side wall of the isolation groove 2 a.

In the embodiment, the insulating portion 32 completely covers the inner peripheral wall of the shaft hole 31a and extends to the openings at the two ends of the shaft hole 31a, so that the connection area between the insulating portion 32 and the wall of the shaft hole 31a can be increased, which is beneficial to improving the connection tightness and reliability between the insulating portion 32 and the supporting portion 31. Meanwhile, the surface area of the insulating part 32 is increased, so that the covering area of the insulating part 32 for the key shaft 12 is increased, the insulating part 32 can be used for carrying out more comprehensive and reliable insulating isolation on the key shaft 12 and the supporting part 31, and the risk that the key shaft 12 is possibly contacted with the supporting part 31 when the hole wall of the shaft hole 31a is not completely covered by the insulating part 32 is avoided.

One end of the insulating part 32 close to the key cap 11 is extended into the isolation groove 2a of the insulating support 2, and the reliability of the insulating isolation of the supporting part 31 and the housing 6 from the insulating support 2 can be further improved by double isolation of the supporting part 31 and the key cap 11 by the insulating part 32 and the insulating support 2. Keeping a certain distance between the insulating part 32 and the key shaft 12 can reduce the contact surface area between the insulating part 32 and the key shaft 12, which is beneficial to reducing the resistance when the key shaft 12 moves relative to the insulating part 32 and making the axial movement of the key shaft 12 smoother. One end of the supporting part 31 close to the keycap 11 is in sliding contact with the side wall of the isolation groove 2a, and the movement guide of the keycap 11 can be realized by utilizing the sliding fit between one end of the supporting part 31 close to the keycap 11 and the side wall of the isolation groove 2a, so that the key shaft 12 can stably move axially.

In an embodiment of the present invention, as shown in fig. 1, one end of the insulating portion 32 close to the keycap 11 is provided with a first limit step 3211; the push button has a pressed state in which the support portion 31 abuts against the bottom wall of the isolation groove 2a and is stopped, and the first stopper 3211 abuts against the insulating portion 32 and is stopped, so that an isolation space a is formed between the key top 11 and the housing 6.

In this embodiment, when the key is pressed, the key shaft 12 moves toward the inside of the mounting cavity 6a of the housing 6, the insulating support 2 and the key cap 11 move close to the housing 6, one end of the supporting portion 31 located in the isolation groove 2a of the insulating support 2 gradually moves close to the bottom wall of the isolation groove 2a, until the supporting portion 31 abuts against the bottom wall of the isolation groove 2a, the side of the insulating support 2 facing away from the bottom wall of the guide groove 111 abuts against the first limit step 3211 on the insulating portion 32 for limitation, at this time, a certain distance exists between the key cap 11 and the housing 6, and an isolation space a is formed between the key cap 11 and the housing 6, so that the key cap 11 cannot contact with the housing 6. Therefore, the first limit step 3211 is abutted and limited with the insulating support 2, and the supporting portion 31 is abutted and limited with the insulating support 2, so that the keycap 11 can be isolated from the shell 6 when the conductive key 1 is in a pressed state, and the reliability of the insulation isolation of the conductive key 1 and the shell 6 is ensured.

In an embodiment of the present invention, as shown in fig. 1, the outer peripheral wall of the key shaft 12 is provided with a second limit step 121; the outer peripheral wall of the insulating support 2 is abutted and limited with the inner peripheral wall of the guide groove 111, and the insulating support 2 is positioned between the second limiting step 121 and the bottom wall of the guide groove 111; in the pressed state, a part of the structure of the first limit step 3211 abuts against the second limit step 121.

In this embodiment, the second limiting step 121 is disposed along the circumferential direction of the key shaft 12, the second limiting step 121 may be an L-shaped step structure, and the first limiting step 3211 and the second limiting step 121 both have two step surfaces that form an included angle with each other, for example, the two step surfaces of the first limiting step 3211 or the second limiting step 121 may form a right angle or an obtuse angle with each other. When the first limiting step 3211 abuts against the second limiting step 121, a step surface of the first limiting step 3211 facing the second limiting step 121 abuts against and is limited by a step surface of the second limiting step 121 facing the first limiting step 3211. The first limit step 3211 is in abutting limit fit with the second limit step 121, so that on one hand, the insulating support 2 and the keycap 11 can be stopped, and the keycap 11 is in contact with the shell 6 and is conducted; on the other hand can strengthen the leakproofness between insulating part 32 and insulating support 2, avoids in the external moisture gets into wearable equipment through the space between insulating part 32 and the insulating support 2.

In an embodiment of the present invention, as shown in fig. 1, one end of the supporting portion 31 close to the key cap 11 includes a position-limiting section 311 and a guiding section 312 arranged at an included angle, and the guiding section 312 is located between the position-limiting section 311 and the key cap 11; the limiting section 311 is abutted with the shell 6 for limiting, and the guide section 312 extends into the isolation groove 2 a; one end of the insulating part 32 close to the keycap 11 is disposed along the inner walls of the limiting section 311 and the guiding section 312 to form a first limiting step 3211.

In this embodiment, the limiting section 311 and the guiding section 312 are both ring-shaped structures, and an included angle between the limiting section 311 and the guiding section 312 is an angle formed by a wall surface of the limiting section 311 facing the bottom wall of the guiding groove 111 and an inner wall surface of the guiding section 312 facing the key shaft 12 in the cross-sectional state shown in fig. 1. The included angle between the limiting section 311 and the guiding section 312 may be any included angle other than 0 degree and 180 degrees, for example, the included angle between the limiting section 311 and the guiding section 312 may be 90 degrees. One end of the supporting portion 31 is arranged to include a limiting section 311 and a guiding section 312 which are arranged at an included angle, so that one end, close to the keycap 11, of the supporting portion 31 is expanded relative to one end, far away from the keycap 11, of the supporting portion 31, a step structure is formed at the joint of the limiting section 311 and the guiding section 312, and therefore when the insulating portion 32 is arranged along the inner walls of the limiting section 311 and the guiding section 312, the first limiting step 3211 is formed on the insulating portion 32. The arrangement of the first limit step 3211 increases the connection area between the insulating part 32 and the supporting part 31, thereby facilitating the reliable and tight connection between the insulating part 32 and the supporting part 31, and simultaneously facilitating the improvement of the reliability of the waterproof sealing between the insulating part 32 and the supporting part 31.

In an embodiment of the present invention, as shown in fig. 1, a first sealing structure 3212 is disposed on a side of the insulating portion 32 facing the limiting section 311; the inner wall of the limiting section 311 and/or the inner wall of the guide section 312 are/is provided with a second sealing structure 313, and the first sealing structure 3212 is clamped with the second sealing structure 313.

In this embodiment, the first sealing structure 3212 and the second sealing structure 313 may be respectively the protrusion and groove structures that can match each other to realize the joint, the arrangement of the first sealing structure 3212 and the second sealing structure 313 can improve the connection area between the insulating portion 32 and the supporting portion 31, the connection strength and the tightness of the insulating portion 32 and the supporting portion 31 are enhanced, the joint cooperation through the first sealing structure 3212 and the second sealing structure 313 can effectively prevent the moisture in the external environment from entering the wearable device from between the first sealing structure 3212 and the second sealing structure 313, thereby realizing reliable sealing connection between the insulating portion 32 and the supporting portion 31.

In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the key structure further includes an elastic member 4, and the elastic member 4 is sleeved on the key shaft 12 and is limited between the first limiting step 3211 and the bottom wall of the isolation groove 2 a.

In this embodiment, the first limit step 3211 is further configured to limit an end of the elastic member 4, and simultaneously restrict a deformation direction of the elastic member 4, so that the elastic member 4 is compressed or extended along an axial direction of the shaft hole 31a, and the key shaft 12 can be driven to move axially by pressing the key cap 11. When the conductive key 1 is pressed to enable the key structure to enter a pressed state, the elastic part 4 is compressed, and when the pressing force on the conductive key 1 is removed, the elastic part 4 elastically recovers and drives the keycap 11 to drive the key shaft 12 to reset, so that the automatic resetting of the conductive key 1 is realized. The elastic element 4 may be a spring or an elastic sleeve sleeved on the key shaft 12.

In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the key structure further includes a conductive bushing 5, wherein the conductive bushing 5 is sleeved on an end of the key shaft 12 away from the key cap 11; the insulating part 32 includes a separating section 321 disposed on the inner peripheral wall of the shaft hole 31a, and an extending section 322 extending to cover the side of the supporting part 31 facing away from the key cap 11, wherein the extending section 322 is located between the key shaft 12 and the conductive bush 5, so that a spacing space b is formed between the conductive bush 5 and the periphery of the key hole 6 b.

In this embodiment, the conductive bush 5 is used to extend the length of the key shaft 12 and prevent the key shaft 12 from slipping off the housing 6, specifically, the conductive bush 5 is located in the installation cavity 6a in the housing 6, the conductive bush 5 and the key cap 11 are respectively located at two opposite sides of the key hole 6b, the diameter of the conductive bush 5 is greater than the hole diameter of the shaft hole 31a, so that the conductive bush 5 cannot pass through the key hole 6b, and thus when the key shaft 12 moves to the outside of the shaft hole 31a, the conductive bush 5 can stop and limit the periphery of the shaft hole 31a, and prevent the key shaft 12 from slipping off the shaft hole 31a outwards, thereby ensuring the reliability of the conductive key 1 during use. The conductive bush 5 can be detachably connected with the key shaft 12 in a screwing mode, a clamping mode and the like, so that the convenience of installing and detaching the key shaft 12 and the conductive bush 5 is improved. The conductive bush 5 can be made of metal, so that the conductive bush 5 can conduct the bioelectricity signals on the keycap 11 and the key shaft 12 to an electrocardio detection module in the wearable device, and the electrocardio detection function of the wearable device is realized.

The isolation section 321 and the extension section 322 of the insulation part 32 can be an integrally formed structure, and the extension section 322 covers one side of the support part 31, which is opposite to the bottom wall of the guide groove 111, so that on one hand, the extension section 322 can insulate and isolate the conductive bushing 5 and the support part 31, and on the other hand, the conductive bushing 5 is prevented from contacting and conducting with the support part 31 when the key shaft 12 and the conductive bushing 5 move, and the reliability of insulation and isolation between the support part 31 and the conductive bushing 5 is ensured; on the other hand, a space b is formed between the conductive bush 5 and the periphery of the key hole 6b supported by the extension 322, so that the conductive bush 5 can be prevented from contacting and conducting with the housing 6 when the key shaft 12 and the conductive bush 5 move, and the reliability of the insulation isolation between the conductive bush 5 and the housing 6 can be ensured.

In an embodiment of the present invention, as shown in fig. 1, a third sealing structure 3221 is disposed on a side of the extending section 322 facing the supporting portion 31, a fourth sealing structure 314 is disposed on a side of the supporting portion 31 facing away from the key cap 11, and the third sealing structure 3221 is engaged with the fourth sealing structure 314.

In this embodiment, the third sealing structure 3221 and the fourth sealing structure 314 may respectively be a protrusion and a groove structure that can be matched with each other to realize clamping, and the third sealing structure 3221 and the fourth sealing structure 314 are arranged to increase a connection area between the insulating portion 32 and the supporting portion 31, so as to enhance connection strength and tightness between the insulating portion 32 and the supporting portion 31, and through clamping cooperation of the third sealing structure 3221 and the fourth sealing structure 314, moisture in an external environment can be effectively prevented from entering the wearable device from between the third sealing structure 3221 and the fourth sealing structure 314, thereby realizing reliable sealing connection between the insulating portion 32 and the supporting portion 31.

The invention further provides wearable equipment which comprises but is not limited to a smart watch and a smart bracelet.

In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the wearable device includes a housing 6 and the above-mentioned key structure, the housing 6 is provided with a mounting cavity 6a and a key hole 6b communicated with the mounting cavity 6a, and the supporting portion 31 of the key structure is inserted into the key hole 6 b.

In the present embodiment, the key hole 6b is used for installing the above-mentioned key structure, when the key structure is installed at the key hole 6b, the key cap 11 of the conductive key 1 is located outside the housing 6, and a user can drive the key shaft 12 to move or rotate axially by pressing or twisting the key cap 11. The key shaft 12 penetrates through the shaft hole 31a of the mounting sleeve 3 and can be detected by the sensor 8 group in the wearable device mounting cavity 6a when rotating or moving along the axial direction of the shaft hole 31a, and the wearable device can respond to the pressing and rotating operations of the conductive key 1 through the functional module electrically connected with the sensor 8 group, so that the display, the loudspeaker and other execution terminals on the wearable device are further controlled to correspondingly execute actions such as picture display, sound production and the like, and information interaction between the wearable device and a user is realized. The specific structure of the key structure refers to the above embodiments, and since the wearable device adopts all technical solutions of all the above embodiments, all beneficial effects brought by the technical solutions of the above embodiments are at least achieved, which is not repeated here.

In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the wearable device includes a mounting bracket 7, a sensor 8, and a first conductive elastic sheet 9, the mounting bracket 7 is disposed in the mounting cavity 6a, and a through groove 7a is disposed on a side of the mounting bracket 7 facing the key hole 6 b; the sensor 8 is arranged in the through groove 7 a; the first conductive elastic sheet 9 is arranged on the mounting bracket 7, and is partially limited in the through groove 7a, and the first conductive elastic sheet 9 is positioned between the key shaft 12 and the sensor 8; the conductive key 1 has a pressed state in which the key shaft 12 abuts against the first conductive dome 9, and in the pressed state, the first conductive dome 9 abuts against the sensor 8 and is conducted.

In this embodiment, the mounting bracket 7 is used for mounting and fixing the sensor 8 and the first conductive elastic sheet 9, and the mounting bracket 7 can be mounted and fixed on the cavity wall of the mounting cavity 6a in a screwing manner, a clamping manner and the like, so that the mounting bracket 7 is fixedly connected with the housing 6. When the mounting bracket 7 is fixed on the shell 6, the notch of the through groove 7a of the mounting bracket 7 is arranged towards the shaft hole 31a of the mounting sleeve 3, the sensor 8 can be mounted and fixed on the bottom wall of the through groove 7a, the first conductive elastic sheet 9 can be arranged between the sensor 8 and the conductive lining 5 on the key shaft 12, the conductive lining 5 is partially positioned in the through groove 7a and can move close to or away from the sensor 8 along the through groove 7a when the key shaft 12 moves axially, so that the conductive lining 5 can press the first conductive elastic sheet 9 when moving close to the key shaft 12 axially, the first conductive elastic sheet 9 is deformed and is in contact with and conducted with the sensor 8, so that the bioelectricity signals transmitted to the key cap 11 and the key shaft 12 by the finger of the user are further transmitted to the sensor 8, further, the electrocardio data of the user can be acquired by the electrocardio detection module electrically connected with the sensor 8, and the operation of the user for pressing the conductive key 1 can be sensed by the sensor 8, the wearable device can respond to the pressing operation of the conductive key 1 through the related functional module electrically connected with the sensor 8, so that the interaction between the wearable device and a user is realized.

In an embodiment of the present invention, as shown in fig. 2 and 3, the first conductive elastic piece 9 includes a connecting section 91 and two assembling sections 92, the connecting section 91 is provided with a through hole 91a, and the wall of the through hole 91a is provided with an elastic contact piece 911; the two assembling sections 92 are respectively arranged at two opposite ends of the connecting section 91, two opposite side walls of the through groove 7a are respectively provided with a convex part, the two convex parts are positioned between the key shaft 12 and the sensor 8, and each assembling section 92 is connected with the mounting bracket 7, so that the two ends of the connecting section 91 are respectively abutted and limited with the two convex parts, and the through hole 91a and the elastic contact piece 911 are positioned between the two convex parts; in the pressed state, the key shaft 12 abuts against and presses the elastic contact piece 911, so that the elastic contact piece 911 abuts against and conducts with the sensor 8.

In this embodiment, when the key cap 11 is pressed by a finger of a user, the key shaft 12 moves axially, the key shaft 12 drives the conductive lining 5 to approach and press the elastic contact piece 911, so that the elastic contact piece 911 deforms and partially extends out of the through hole 91a to contact the sensor 8, the elastic contact piece 911 is connected with the ecg detection module through the connection section 91 and the assembly section 92, and thus the key cap 11, the key shaft 12, the conductive lining 5, the elastic contact piece 911 and the sensor 8 are sequentially contacted and conducted, so as to obtain ecg data of the user through the ecg detection module electrically connected with the sensor 8

The relative both sides wall that leads to groove 7a is equipped with the convex part, and two convex parts intervals set up, and sensor 8 is located between two convex parts, and two convex parts form the stair structure with the lateral wall cooperation that leads to groove 7a, and the both ends of linkage segment 91 and the protruding back butt to one side of leading to groove 7a diapire make the both ends of linkage segment 91 spacing in this stair structure department. When the conductive bushing 5 moves axially and presses the elastic contact piece 911, because the two ends of the connecting section 91 are stopped and limited by the convex parts and fixed, part of the structure of the elastic contact piece 911 deforms and passes through the two convex parts, so that the elastic contact piece 911 is finally contacted with the sensor 8 and conducted.

In an embodiment of the present invention, as shown in fig. 1 and fig. 3, the wearable device further includes a second conductive elastic piece 10 and an electrocardiograph detection module; the second conductive elastic sheet 10 is arranged in the mounting cavity 6a and is abutted with an assembling section 92; the electrocardio detection module is electrically connected with the second conductive elastic sheet 10 and the sensor 8.

In this embodiment, the electrocardiograph detection module is always electrically connected to the second conductive elastic piece 10 and the sensor 8, when the conductive key 1 is not pressed, the conductive bushing 5 on the key shaft 12 is separated from the elastic contact piece 911, the elastic contact piece 911 is separated from the sensor 8, and at this time, the second conductive elastic piece 10 and the sensor 8 are in an open circuit state, and the electrocardiograph detection module does not operate. When the conductive key 1 is in a pressed state, the conductive bushing 5 on the key shaft 12 is in contact with the elastic contact piece 911, the elastic contact piece 911 is in contact with the sensor 8, the sensor 8 and the electrocardio detection module are conducted through the second conductive elastic piece 10 to form a circuit loop, so that the electrocardio detection module can acquire a conducted bioelectricity signal on the conductive key shaft 12 through the second conductive elastic piece 10 and the sensor 8, and the electrocardio detection function of the wearable device is realized. The electrocardiograph detection module may include an electrocardiograph (ecg) chip and a related control circuit.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a button structure is applied to wearable equipment, wearable equipment's shell is equipped with the button hole, its characterized in that, button structure includes:

2. The key structure of claim 1, wherein two ends of the insulating part extend towards two openings of the shaft hole respectively, and one end of the insulating part close to the keycap extends into the isolation groove and is spaced from the key shaft; one end of the supporting part close to the keycap is in sliding butt joint with the side wall of the isolation groove.

3. The key structure of claim 1, wherein an end of the insulating portion adjacent to the key cap is provided with a first limit step;

4. The key structure of claim 3, wherein the peripheral wall of the key shaft is provided with a second limit step;

5. The key structure of claim 3, wherein an end of the supporting portion adjacent to the key cap includes an angled position-limiting section and a guiding section, the guiding section being located between the position-limiting section and the key cap;

6. The key structure of claim 5, wherein a first sealing structure is disposed on a side of the insulating portion facing the spacing segment;

7. The key structure of claim 3, further comprising an elastic member, wherein the elastic member is sleeved on the key shaft and is limited between the first limiting step and the bottom wall of the isolation groove.

8. The key structure of claim 1, further comprising a conductive bushing, the conductive bushing being disposed at an end of the key shaft away from the key cap;

9. The key structure of claim 8, wherein a third sealing structure is disposed on a side of the extending section facing the supporting portion, a fourth sealing structure is disposed on a side of the supporting portion facing away from the key cap, and the third sealing structure is engaged with the fourth sealing structure.

10. A wearable device, characterized in that the wearable device comprises:

the key structure according to any one of claims 1 to 9, wherein a support portion of the key structure is disposed through the key hole.