CN212461467U - Key and wearable equipment - Google Patents

Abstract

The utility model discloses a key, which comprises a key cap and an inner support, wherein the inner support is fixedly connected with an equipment shell, the key cap is connected with the inner support in a sliding way so as to press down or lift up relative to the inner support, and a reset elastic part is arranged between the key cap and the inner support; the key cap with through between the interior support the elastic component electrical property that resets switches on, interior support can with PCB board in the equipment casing switches on. Use the utility model provides a button, with the contact integration that ECG detected on the button, then the button can integrate self button function and ECG and detect the function, has avoided extra space to occupy. And realize switching on between key cap and interior support through the elastic component that resets, the elastic component that resets contacts with key cap and interior support all the time to the reliable and stable who switches on has been guaranteed. The utility model also discloses a wearable equipment of having this button has above-mentioned technological effect equally.

Description

Key and wearable equipment

Technical Field

The utility model relates to an electronic equipment technical field, more specifically say, relate to a button and wearable equipment.

Background

With the development of science and technology, wearable electronic equipment is more and more appreciated and favored by people. Taking wearable devices such as watches, bracelets and the like as examples, buttons are usually provided to realize certain functions. The key generally comprises a keycap and an inner support matched with the keycap, wherein the inner support is fixed on a shell of the wearable device, and the keycap can move up and down relative to the shell, so that the key can be pressed down or lifted up. An elastic part is arranged between the keycap and the inner support so as to provide restoring force for upwards lifting and resetting the keycap after being pressed down.

There is also an increasing demand for electronic device functionality, such as the integration of ECG (electrocardiogram) measurements in wearable devices. In order to meet the ECG measurement, a contact point needs to be arranged on the wearable device, and a user can contact the contact point through limbs such as fingers to conduct the test circuit, so that the measurement is realized. However, how to ensure reliable conduction during ECG testing while reducing the extra space occupation is a problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the first objective of the present invention is to provide a key, which can effectively solve the problem that the conduction of an ECG test contact requires extra space to occupy due to the structural design of the key, and the second objective of the present invention is to provide a wearable device including the above key.

In order to achieve the first object, the present invention provides the following technical solutions:

a key comprises a key cap and an inner support, wherein the inner support is fixedly connected with an equipment shell, the key cap is connected with the inner support in a sliding mode so as to be pressed or lifted relative to the inner support, and a reset elastic piece is arranged between the key cap and the inner support; the key cap with through between the interior support the elastic component electrical property that resets switches on, interior support can with PCB board in the equipment casing switches on.

Preferably, the key further comprises a support and a screw, the inner support is provided with a screw hole, the support is provided with a support through hole, and the screw penetrates through the support through hole and the mounting through hole in the equipment shell to be in threaded fit with the screw hole so as to fix the inner support and the support to the equipment shell.

Preferably, in the above key, the support has an ECG contact connected to the PCB, and the inner holder is electrically connected to the support through the screw, so as to be electrically connected to the PCB.

Preferably, in the above key, the bracket includes a metal portion and an insulating portion fixedly connected to the metal portion, the screw is in contact conduction with the metal portion, and the insulating portion insulates the metal portion from the device case.

Preferably, in the above-mentioned key, the metal part includes a U-shaped main body portion, a connecting portion formed by two sides of the top end of the main body portion respectively extending horizontally outwards, and an ECG contact formed by one side of the front end of the main body portion extending outwards and perpendicular to the connecting portion, the ECG contact is used for contacting with the PCB board, and the screw hole is disposed on the connecting portion.

Preferably, in the above key, the insulating portion includes an upper insulating portion located above the connecting portion to be in contact with the device case and a lower insulating portion located outside the main body portion.

Preferably, the key further comprises an insulating sleeve arranged on the periphery of the keycap to be insulated from the device shell.

Preferably, in the above key, the key cap has a shaft, the center of the inner support has an inner support through hole for the shaft to pass through, a waterproof ring is extruded between the inner support through hole and the shaft, and the bottom surface of the inner support has a sealing gasket for sealing with the device housing.

Preferably, in the above key, the key cap has a mounting groove, the top end of the inner support is located in the mounting groove, a key cap flange formed by extending inward is provided on the lower edge of the side wall of the mounting groove, an inner support flange formed by extending outward is provided on the top end of the inner support, and the key cap flange is blocked below the inner support flange.

The utility model provides a button includes key cap, interior support and the elastic component that resets. The inner support is fixedly connected with the equipment shell, the keycap is connected with the inner support in a sliding mode to press down or lift up relative to the inner support, and the reset elastic piece is arranged between the keycap and the inner support; the keycap is electrically connected with the inner support through the reset elastic piece, and the inner support can be connected with the PCB in the equipment shell.

Use the utility model provides a button switches on through the elastic component electrical property that resets between key cap and the interior support, and interior support switches on with the PCB board in the equipment casing again to when carrying out the ECG test, user's finger accessible touch key cap realizes switching on with the PCB board. Meanwhile, the key can be used as a conventional key. Namely, the contact of ECG detection is integrated on the key, so that the key can integrate the key function and the ECG detection function, and the occupation of extra space is avoided. And realize switching on between key cap and interior support through the elastic component that resets, the elastic component that resets contacts with key cap and interior support all the time to the reliable and stable who switches on has been guaranteed.

In order to achieve the second objective, the present invention further provides a wearable device, which includes any one of the above keys. Since the key has the technical effects, the wearable device with the key also has corresponding technical effects.

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 these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a key according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;

FIG. 3 is a schematic view of a matching structure of a keycap and an inner support;

FIG. 4 is a schematic structural view of a stent;

fig. 5 is a schematic diagram of an exploded structure of a stent.

The drawings are numbered as follows:

insulating cover 1, key cap 2, elastic component 3 resets, interior support 4, waterproof circle 5, sealed 6, equipment casing 7, button gum cover 8, support 9, screw 10, key circuit board 11, key cap flange 12, interior support flange 13, insulating part 14, metal part 15, screw hole 16, main part 151, connecting portion 152, ECG contact 153.

Detailed Description

The embodiment of the utility model discloses button to have the function that button and ECG detected concurrently, promote space utilization.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, fig. 1 is a schematic cross-sectional view of a key according to an embodiment of the present invention; FIG. 2 is a schematic diagram of the exploded structure of FIG. 1; FIG. 3 is a schematic view of a matching structure of a keycap and an inner support; FIG. 4 is a schematic structural view of a stent; fig. 5 is a schematic diagram of an exploded structure of a stent.

In one embodiment, the present invention provides a key comprising a key cap 2, an inner support 4 and a return spring 3.

Wherein, the inner support 4 is used for being fixedly connected with the equipment shell 7. The inner holder 4 is fixed to the device housing 7 in a specific manner, which is not limited herein. The inner support 4 is matched with the keycap 2, and the shape of the inner support can be correspondingly arranged according to the shape of the keycap 2.

The keycap 2 is connected with the inner support 4 in a sliding mode to press down or lift up relative to the inner support 4, and the reset elastic piece 3 is arranged between the keycap 2 and the inner support 4. That is, the key cap 2 can be used as a key, and when the key is applied to a wearable device or the like, the corresponding function can be realized by pressing or lifting the key cap 2. Such as a key cap 2, to trigger a function. The specific way to sense the pressing of the key cap 2 and trigger the corresponding function according to the pressing can be seen in the corresponding structural arrangement of the common key, which is not detailed here. Be provided with the elastic component 3 that resets between key cap 2 and the interior support 4, through the setting of the elastic component 3 that resets after external force releases key cap 2, key cap 2 can automatic re-setting. Specifically, the elastic return element 3 may be a compression elastic element for pushing the key cap 2 to lift.

The keycap 2 and the inner support 4 are electrically connected through the reset elastic piece 3, and the inner support 4 can be connected with a PCB in the equipment shell 7 to realize the corresponding ECG test function. That is, when the key is assembled in the device housing 7, the inner support 4 is conducted with the PCB, and the key cap 2 is conducted with the inner support 4 through the elastic reset element 3, so that the key cap 2 can be conducted with the PCB. According to the space needs in the equipment casing 7, interior support 4 specifically switches on through flexible circuit board and PCB board, promptly interior support 4 through be connected with flexible circuit board, flexible circuit board is connected with the PCB board again and realizes switching on of interior support 4 and PCB board, perhaps interior support 4 also can switch on through wire or shell fragment etc. and PCB board. It should be noted that, the elastic resetting element 3 may be made of a conductive metal material as a whole, so as to achieve the conduction between the key cap 2 and the inner support 4, or the elastic resetting element 3 having a conductive layer on the surface may be used to achieve the conduction between the key cap 2 and the inner support 4. Correspondingly, the keycap 2 and the inner support 4 can be electrically connected by using a conductive metal material as a whole or by providing a local conductive metal part in contact with the elastic restoring element 3 or providing an at least local conductive layer. The elastic component 3 that resets specifically can adopt the spring, and the installation of being convenient for the spring sets up spring mounting groove on the interior support 4, and in spring mounting groove was arranged in to the one end of spring, spring mounting groove both can play the supporting role to the spring, also can play its limiting displacement, made the deformation of spring more steady.

The structure of specific PCB board to and keycap 2 and PCB board switch on the back, the principle of the ECG test when the user touches keycap 2 with the finger and with the button and PCB board complex other structures that detect the ECG can all refer to prior art, and no longer repeated here. The present application mainly lies in that the ECG contact 153 for receiving the touch of the finger of the user to perform ECG detection is disposed on the key and a corresponding conduction path is disposed, so as to improve the space utilization rate and the conduction stability and reliability.

In order to realize the conventional key function of the key, the key circuit board 11 which is matched with the key cap 2 and is provided with a key contact and is electrically connected with the key contact is arranged, and if the key flexible circuit board is used as the key, the key cap 2 triggers the key contact when pressed down so as to realize the corresponding function through the key circuit board 11. For the structure of the key contacts and the key circuit board 11, please refer to the prior art, which is not described herein. In order to avoid direct hard contact between the bottom end of the key cap 2 and the key contact, a key soft rubber sleeve 8 can be arranged between the bottom end of the key cap 2 and the key contact, so that the key cap 2 acts on the key soft rubber sleeve 8 when pressed down, and acts on the key contact through the buffering of the key soft rubber sleeve 8.

Use the utility model provides a button, key cap 2 with hold in the palm between 4 through 3 electrical properties of elastic component that reset, hold in the palm 4 again and switch on with the PCB board in the equipment casing 7 in to when carrying out the ECG test, user's finger accessible touch key cap 2 realizes switching on with the PCB board. Meanwhile, the key can be used as a conventional key. Namely, the ECG contact 153 for ECG detection is integrated on the key, the key can integrate the key function and ECG detection function, so as to avoid occupying extra space. And realize switching on between key cap 2 and interior support 4 through the elastic component 3 that resets, elastic component 3 that resets contacts with key cap 2 and interior support 4 all the time to the reliable and stable who switches on has been guaranteed.

Specifically, the device further comprises a support 9 and a screw 10, the inner support 4 is provided with a screw hole 16, the support 9 is provided with a support through hole, and the screw 10 penetrates through the support through hole and a mounting through hole in the device shell 7 to be in threaded fit with the screw hole 16 so as to fix the inner support 4 and the support 9 to the device shell 7. That is, through setting up the support 9 with interior support 4 complex, the outside of equipment casing 7 is arranged in to interior support 4, and the inboard of equipment casing 7 is arranged in to support 9, and it is fixed with interior support 4 to hold in the palm support 9 through screw 10, and the two presss from both sides equipment casing 7 tightly and realizes three's relatively fixed. The fixing of the inner support 4 is realized through the screw 10, the fastening operation is convenient, the connection is reliable, and the loosening is not easy. Specifically, set up the installation through-hole on the equipment casing 7, set up the spliced pole that outstanding in the up end with the installation through-hole complex on the support 9, the spliced pole inserts in the installation through-hole, and the up end of support 9 offsets with equipment casing 7, and the support through-hole is seted up on the spliced pole, and then screw 10 has just passed the installation through-hole when passing the support through-hole, and then 16 screw-thread fit with the screw hole of interior support 4 realize the fastening.

Further, the bracket 9 has an ECG contact 153 connected to the PCB, and the inner holder 4 is electrically connected to the bracket 9 through the screw 10. That is, the inner support 4 is electrically connected to the bracket 9 through the screw 10, and the bracket 9 can be connected to the PCB through the ECG contact 153, so as to achieve the conduction between the inner support 4 and the PCB. The screw 10 is used for realizing the conduction between the bracket 9 and the inner support 4, and the structure is stable and reliable. Specifically, the screw 10 may be a conductive metal screw as a whole, or the screw 10 may also have a conductive layer on its surface to achieve electrical conduction. The bracket 9 is at least partially a conductive metal part or a communication part with a conductive layer for communicating the screw 10 and the PCB. The inner support 4 can also realize the conduction with the PCB board through a separately arranged conductive element according to the requirement, but the parts are added, and the structure is relatively complex. According to the space requirement in the device housing 7, the ECG contact 153 may be connected to the PCB through a flexible circuit board, or may be connected to the PCB through a wire or a spring piece.

Further, the bracket 9 includes a metal part 15 and an insulating part 14 fixedly connected to the metal part 15, the screw 10 is in contact with the metal part 15, and the insulating part 14 insulates the metal part 15 from the device case 7. That is, conduction with the screw 10 and connection with the PCB are achieved by the metal part 15, and insulation between the metal part 15 and the device case 7 is achieved by the insulating part 14. When equipment casing 7 is the metal material, through the setting of insulating part 14, effectively guaranteed the insulation between metal part 15 and equipment casing 7 to key cap 2 effectively switches on with the PCB board when having guaranteed the ECG test. Of course, when the housing is made of plastic or insulating material of the plastic stool itself, the insulating portion 14 may not be additionally disposed on the bracket 9. The specific structures of the metal part 15 and the insulating part 14 may be set according to the shape of the device housing 7 and the position of the PCB, and are not limited herein. Specifically, the metal part 15 may be made of stainless steel, and the insulating part 14 may be made of plastic.

In one embodiment, the bracket 9 includes a metal part 15, the metal part 15 includes a U-shaped main body part 151, a connecting part 152 formed by extending horizontally outward from two sides of the top end of the main body part 151, and an ECG contact 153 perpendicular to the connecting part 152 formed by extending outward from one side of the front end of the main body part 151, the ECG contact 153 is used for contacting with a PCB board, and the screw hole 16 is disposed on the connecting part 152. That is, the metal part 15 is used to realize the conduction with the screw 10 and the connection with the PCB. And the metal part 15 includes a body part 151, a connection part 152, and an ECG contact 153. The main body 151 is U-shaped, and the key circuit board 11 and the key contacts that are engaged with the key cap 2 can be disposed in the U-shaped groove, so as to fully utilize the space and facilitate engagement with the key cap 2. The connecting portions 152 are located on two sides of the U-shaped opening and extend horizontally outward, and the screw holes 16 are opened in the connecting portions 152, so that the connecting portions 152 are fixedly connected with the inner support 4 and communicated with the screws 10. The ECG contact 153 is formed by extending the front end of the main body 151 outward and is perpendicular to the connecting portion 152. In particular, the ECG contact 153 may be a dome ECG contact. With such an arrangement, the ECG contact 153 and the connection portion 152 are not on the same plane, which enables better space utilization, and when the key is used in a wearable device, it is advantageous for the miniaturized design of the device. Specifically, the plane formed by the ECG contact 153 is perpendicular to the plane formed by the connecting portion 152 and the plane where the vertical side of the U-shape is located, so that the overall structure is more stable.

Further, in the case where the bracket 9 includes the metal part 15 and the insulating part 14, when the metal part 15 adopts the above-described structure, the insulating part 14 includes an upper insulating part located above the connection part 152 to be in contact with the device case 7 and a lower insulating part located outside the main body part 151. Effective insulation of the support 9 from the device housing 7 can be achieved by the provision of the upper and lower insulation. Specifically, when the holder 9 includes a connection post that fits into the mounting through hole of the device case 7, the connection post is formed of the insulating portion 14.

On the basis of the above embodiments, the key cap further comprises an insulating sleeve 1 arranged on the periphery of the key cap 2 to be insulated from the device shell 7. When equipment casing 7 is metal casing, through the setting of insulating cover 1, effectively realized the insulating between 2 peripheries of key cap and equipment casing 7 to guaranteed that the user effectively switches on with interior support 4 and PCB board when contacting key cap 2.

In the above embodiments, the key cap 2 has a shaft, the center of the inner support 4 has an inner support through hole for the shaft to pass through, a waterproof ring 5 is pressed between the inner support through hole and the shaft, and the bottom surface of the inner support 4 has a sealing gasket 6 for sealing with the device housing 7. That is to say, the axle of key cap 2 inserts in holding in the palm the through-hole, realizes through the axle that key cap 2 and interior 4 of holding in the palm rotate and is connected. Meanwhile, the waterproof ring 5 is extruded between the inner support through hole and the shaft, and the sealing gasket 6 is extruded between the bottom surface of the inner support 4 and the equipment shell 7, so that the waterproof performance of the key is realized, and the waterproof grade can reach 5 ATM. The sealing pad 6 may be a waterproof double-sided tape or a silica gel pad.

Further, the key cap 2 has a mounting groove, the top of the inner support 4 is located in the mounting groove, the lower edge of the side wall of the mounting groove is provided with a key cap flange 12 formed by inward extension, the top of the inner support 4 is provided with an inner support flange 13 formed by outward extension, and the key cap flange 12 is blocked below the inner support flange 13. That is to say, the key cap 2 and the interior buckle structure that holds in the palm 4 between have and to prevent that key cap 2 from deviating from, then through the aforesaid setting, can strengthen the button area of feeling, if press in key cap 2 one side, the interior support flange 13 of holding in the palm 4 in opposite side key cap flange 12 catches on, can trigger the button equally. And the structure can effectively avoid the occurrence of the phenomenon of key clamping. Specifically, two opposite ends of the lower edge of the side wall of the mounting groove are respectively provided with a keycap flange 12, two opposite ends of the top end of the inner support 4 corresponding to the keycap flange are respectively provided with an inner support flange 13, the inner support flange 13 and the keycap flange 12 are staggered firstly during assembly, and then the inner support flange 13 is clamped with the keycap flange 12 through rotation, so that the clamping of the two is realized. Of course, the engagement action is limited only to the upward movement limit of the key cap 2 relative to the inner support 4, i.e. the key cap 2 cannot move upward any longer when the inner support flange 13 abuts against the key cap flange 12, and the key cap 2 can move downward normally relative to the inner support 4.

Based on the button that provides in the above-mentioned embodiment, the utility model also provides a wearable equipment, this wearable equipment includes arbitrary button in the above-mentioned embodiment. Since the wearable device employs the keys in the above embodiments, please refer to the above embodiments for the beneficial effects of the wearable device.

The assembly process of the key is described below in one embodiment. Specifically, the keycap 2 is provided with the waterproof ring 5 and the reset elastic piece 3 in advance, then is fixed on the inner support 4 in a rotating mode, the waterproof double-faced adhesive tape and the insulating sleeve 1 are assembled in the setting shell in advance, and then the assembled inner support 4 and the keycap 2 are assembled together on the equipment shell 7. The key soft rubber sleeve 8 and the key circuit board 11 are fixed on the support 9 in advance, and finally the support 9 of the inner support 4 is fixed on the equipment shell 7 together through screwing. The wearable device can be a watch or a bracelet and the like.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A key comprises a key cap (2) and an inner support (4), wherein the inner support (4) is fixedly connected with an equipment shell (7), the key cap (2) is connected with the inner support (4) in a sliding mode so as to be pressed down or lifted up relative to the inner support (4), and a reset elastic part (3) is arranged between the key cap (2) and the inner support (4); the novel key cap is characterized in that the key cap (2) is electrically connected with the inner support (4) through the reset elastic piece (3), and the inner support (4) can be electrically connected with a PCB in the equipment shell (7).

2. The key of claim 1, further comprising a bracket (9) and a screw (10), wherein the inner holder (4) has a screw hole (16), the bracket (9) has a bracket through hole, and the screw (10) is threaded through the bracket through hole and a mounting through hole on the device housing (7) to cooperate with the screw hole (16) to secure the inner holder (4) and the bracket (9) to the device housing (7).

3. The key of claim 2, wherein the bracket (9) has an ECG contact (153) connected to the PCB, and the inner holder (4) is electrically connected to the bracket (9) through the screw (10) and further electrically connected to the PCB.

4. A key according to claim 3, characterised in that said support (9) comprises a metal part (15) and an insulating part (14) fixedly connected to said metal part (15), said screw (10) being in contact conduction with said metal part (15), said insulating part (14) insulating said metal part (15) from said device housing (7).

5. The key according to claim 4, wherein the metal part (15) comprises a U-shaped main body part (151), a connecting part (152) formed by two sides of the top end of the main body part (151) extending horizontally outwards respectively, and the ECG contact (153) perpendicular to the connecting part (152) and formed by one side of the front end of the main body part (151) extending outwards, the ECG contact (153) is used for contacting with the PCB, and the screw hole (16) is arranged on the connecting part (152).

6. The key according to claim 5, wherein the insulating portion (14) comprises an upper insulating portion located above the connecting portion (152) to be in contact with the device case (7) and a lower insulating portion located outside the main body portion (151).

7. A key according to any of claims 1-6, further comprising an insulating sleeve (1) arranged at the periphery of the key cap (2) to insulate the device housing (7).

8. A key according to any of claims 1-6, characterized in that the key cap (2) has a shaft, the center of the inner support (4) has an inner support through hole for the shaft to pass through, a waterproof ring (5) is pressed between the inner support through hole and the shaft, and the bottom surface of the inner support (4) has a sealing gasket (6) for sealing with the device housing (7).

9. The key according to claim 8, wherein the key cap (2) is provided with a mounting groove, the top end of the inner support (4) is positioned in the mounting groove, the lower edge of the side wall of the mounting groove is provided with a key cap flange (12) formed by extending inwards, the top end of the inner support (4) is provided with an inner support flange (13) formed by extending outwards, and the key cap flange (12) is blocked below the inner support flange (13).

10. A wearable device comprising a device housing (7), characterized in that it further comprises a key according to any of claims 1-9.

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