CN217588765U

CN217588765U - Double-contact keyboard key convenient to assemble

Info

Publication number: CN217588765U
Application number: CN202220935557.4U
Authority: CN
Inventors: 陈睿; 唐小勇
Original assignee: Shenzhen Hengshang Electronics Co ltd
Current assignee: Shenzhen Hengshang Electronics Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-10-14
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses a two contact keyboard buttons of convenient equipment belongs to keyboard button technical field. The conductive plate is arranged below the conductive film in a laminated mode, an integrally formed shaft body is arranged in the keycap, the upper portion of the shaft body is fixed in the keycap, the lower portion of the shaft body is movably installed in the middle plate body and can move up and down, the top end of the silica gel is fixedly connected with the bottom end of the shaft body, the top end of the silica gel extends inwards to form a conductive portion, and the conductive portion is in contact connection with the conductive film; a metal elastic sheet is fixed on the inner wall of the middle plate body and is provided with two contacts, and the outer wall of the shaft body is provided with two contact slots capable of accommodating the corresponding contacts; each contact is contactably connected with the corresponding contact slot. The shaft body is arranged in the keycap to form an integrally formed structure, so that the assembly is simple and the structure is stable; the keyboard key realizes the double-contact design of the key, the stability of sound and hand performance is good, the contact is wear-resisting, and the service life is long.

Description

Double-contact keyboard key convenient to assemble

Technical Field

The utility model belongs to the technical field of the keyboard button, in particular to convenient equipment's two contact keyboard buttons.

Background

The existing keyboard keys are usually realized by adopting a single-point structure, the structure has poor hand feeling and sound stability, the contact is not wear-resistant, the service life is short, and the processing difficulty of a die is large; thus bringing great inconvenience to both use and processing.

Based on this, double-contact keyboard button has appeared on the market, and the double-contact keyboard button has the advantages of wear-resisting contact, long service life and simple die processing. However, the shaft body of the existing double-contact keyboard key is arranged in the keycap and is arranged independently, the assembly is troublesome, and the structure is not stable enough.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, a primary object of the present invention is to provide a dual-contact keyboard key that is easy to assemble, simple to assemble, and stable in structure;

another object of the present invention is to provide a dual-contact keyboard key which is convenient to assemble, and has good stability of the sound and hand feeling of the key, wear-resistant contacts, long service life and easy mold processing, and the sound and hand feeling are not easily affected;

a final object of the present invention is to provide a dual-contact keyboard key which is easy to assemble, simple in structure, low in cost, and easy to popularize and use.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a convenient two-contact keyboard button of equipment, including key cap, medium plate body, silica gel, conducting film and board in a poor light, the board in a poor light range upon range of setting in the below of conducting film, be provided with integrated into one piece's axis body in the key cap, the upper portion of axis body is fixed in the key cap, and the lower part movable mounting of axis body just can reciprocate in the medium plate body, the top of silica gel and the bottom fixed connection of axis body, the top of silica gel inwards extends and forms the conducting part, carry out the contactable connection between conducting part and the conducting film; the keycap is movably sleeved outside the upper part of the middle plate body, the bottom end of the middle plate body is fixedly connected with the conductive film, and the keycap, the middle plate body and the conductive film form a cavity for accommodating the shaft body and the silica gel; a metal elastic sheet is fixed on the inner wall of the middle plate body, two contacts are arranged on the metal elastic sheet, and two contact grooves capable of accommodating the corresponding contacts are formed in the outer wall of the shaft body; each contact is contactably connected with the corresponding contact slot.

Further, be provided with two symmetrical joint portions on the outer wall of axis body, this internal being provided with of medium plate with the corresponding joint groove of joint portion, joint portion movable mounting just can reciprocate in the joint inslot. The joint groove can carry on spacingly to joint portion, and in the activity process about guaranteeing the axis body, skew about the position can not take place.

Further, the axis body is provided with the spacing post of contact on the outer wall adjacent with joint portion, the contact groove sets up the both sides at the spacing post of contact. When the keycap is not pressed, each contact falls into the corresponding contact groove; and after the keycap is pressed downwards completely, each contact leaves the corresponding contact groove.

Furthermore, the axis body is square structure, and is provided with two backup pads that are the distribution of X style of calligraphy in the axis body, and the both ends of two backup pads are connected with four base angles of axis body respectively with the axis body separates into four mutually independent cavitys, joint portion and contact trench are located two adjacent cavitys. Can separate joint portion and contact groove through the cavity, can avoid metal shrapnel's contact to be influenced by clamping part when the contact inslot moves about.

Further, the metal elastic sheet comprises a fixing part, extending parts extending upwards along two sides of the fixing part and inclined parts extending obliquely along each extending part, and each contact is bent along the tail end of each inclined part; the fixed part, the extending part, the inclined part and the contact are integrally formed, the bottom end of the fixed part is fixed on the inner wall of the middle plate body, and the extending part and the inclined part are suspended in the middle plate body.

Furthermore, an avoiding position used for avoiding the metal elastic sheet is arranged on the middle plate body, a limiting sheet extends upwards from the fixing part, a limiting groove matched with the limiting sheet is formed in the avoiding position, a limiting protrusion is arranged at the tail end of the limiting groove, and the limiting sheet is clamped in the limiting groove and abuts against the limiting protrusion to form a limiting structure. Can carry on spacingly to metal shrapnel through limit structure, avoid metal shrapnel position to take place the skew.

Furthermore, the operating principle of the double-contact keyboard key is as follows: a metal elastic sheet is fixed on the inner wall of the middle plate body, two contacts are arranged on the metal elastic sheet, and two contact slots capable of accommodating the corresponding contacts are formed in the outer wall of the shaft body; each contact is in contact connection with the corresponding contact slot; when the keycap starts to press downwards, the metal elastic sheet starts to deform, and the silica gel also starts to press downwards; when the button structure is pressed downwards continuously, the metal elastic sheet deforms to the limit position, the double contacts are pushed out of the contact grooves, the metal elastic sheet can generate hand feeling and sound of a mechanical shaft when rebounding, and the silica gel is conducted with the conductive film after being further pressed, so that the button structure conducts and works; after the key cap kick-backs, metal shrapnel recovered original state, became free state by the pressurized, can produce the feel and the sound of mechanical axis equally, and above-mentioned structure has realized the two contact designs of this keyboard button, and this design makes the sound of button and the stability of hand sensing performance all good, and the contact is wear-resisting and be difficult to influence sound and feel, and longe-lived and mould processing is easy.

The beneficial effects of the utility model are that, compare with prior art:

firstly, the utility model discloses a double-contact keyboard button, through set up the axis body and form the structure of integrated into one piece in the key cap, can reduce the equipment of a part, it is more convenient to assemble, the structure is more firm;

secondly, the double-contact keyboard key realizes the double-contact design of the key, the design ensures that the stability of the sound and the hand performance of the key is good, the contact is wear-resistant, the sound hand feeling is not easily influenced, the service life is long, and the mould is easy to process;

thirdly, two supporting plates distributed in an X shape are arranged in a shaft body of the keycap, two ends of the two supporting plates are respectively connected with four bottom corners of the shaft body to divide the shaft body into four cavities which are independent of each other, so that the clamping part can be separated from the contact groove, and the influence of the clamping part on the contact of the metal elastic sheet when the contact moves in the contact groove can be avoided;

finally, the utility model discloses simple structure, with low costs, facilitate promotion and use.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is an exploded view of the present embodiment.

Fig. 3 is a sectional view of the present embodiment.

Fig. 4 is a schematic structural diagram of the key cap of the embodiment.

Fig. 5 is a schematic structural diagram of the silica gel of the present embodiment.

Fig. 6 is a schematic structural diagram of the metal dome of the present embodiment.

Fig. 7 is a schematic structural diagram of the middle plate body in this embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to achieve the above object, the technical solution of this embodiment is as follows:

referring to fig. 1 to 7, the present embodiment provides a dual-contact keyboard key convenient to assemble, including a key cap 1, a middle plate body 2, a silica gel 3, a conductive film 4 and a backlight plate 5, wherein the backlight plate 5 is stacked below the conductive film 4, an integrally formed shaft body 6 is disposed in the key cap 1, an upper portion of the shaft body 6 is fixed in the key cap 1, a lower portion of the shaft body 6 is movably mounted in the middle plate body 2 and can move up and down, a top end of the silica gel 3 is fixedly connected with a bottom end of the shaft body 6, a top end of the silica gel 3 extends inward to form a conductive portion 31, and the conductive portion 31 is in contact connection with the conductive film 4; the keycap 1 is movably sleeved outside the upper part of the middle plate body 2, the bottom end of the middle plate body 2 is fixedly connected with the conductive film 4, and the three parts form a cavity for accommodating the shaft body 6 and the silica gel 3; a metal spring is fixed on the inner wall of the middle plate body 2, two contacts 71 are arranged on the metal spring 7, and two contact grooves 61 capable of accommodating the corresponding contacts 71 are formed in the outer wall of the shaft body 6; each contact 71 is contactably connected to the corresponding contact groove 61.

Further, be provided with two symmetrical joint portions 62 on the outer wall of axis body 6, be provided with in the medium plate body 2 with the corresponding joint groove 21 of joint portion 62, joint portion 62 movable mounting just can reciprocate in joint groove 21. The joint groove 21 can limit the joint part 62, and the position of the shaft body 6 cannot be deviated left and right in the vertical movement process.

Further, the shaft body 6 is provided with a contact limit post 63 on an outer wall adjacent to the snap-in portion 62, and the contact grooves 61 are provided on both sides of the contact limit post 63. When the keycap 1 is not pressed, each contact falls into the corresponding contact groove 61; after the key cap 1 is fully pressed down, each contact leaves the corresponding contact slot 61.

Further, the axis body 6 is the square structure, and is provided with two backup pads 64 that are X style of calligraphy and distribute in the axis body 6, and the both ends of two backup pads 64 are connected with four base angles of axis body 6 respectively and are separated into four mutually independent cavitys with axis body 6, and joint portion 62 is located two adjacent cavitys with contact groove 61. Can separate joint portion 62 and contact groove 61 through the cavity, can avoid metal shrapnel 7's contact to be influenced by joint portion 62 when contact groove 61 internalization.

Further, the metal dome 7 includes a fixing portion 72, extending portions 73 extending upward along both sides of the fixing portion 72, and inclined portions 74 extending obliquely along each of the extending portions 73, and each of the contacts 71 is bent along a distal end of each of the inclined portions 74; the fixing portion 72, the extending portion 73, the inclined portion 74 and the contact 71 are integrally formed, the bottom end of the fixing portion 72 is fixed on the inner wall of the middle plate body 2, and the extending portion 73 and the inclined portion 74 are placed in the middle plate body 2 in a suspended manner.

Furtherly, be provided with on the well body 2 and be used for dodging position 22 of dodging the metal shrapnel, the fixed part still upwards extends spacing piece 75, dodges position 22 and is provided with the spacing groove 23 with spacing piece 75 looks adaptation, and the end of spacing groove 23 is provided with spacing arch 24, and spacing piece 75 joint forms limit structure in spacing groove 23 and support to hold on spacing arch 24. Can carry on spacingly to metal shrapnel through limit structure, avoid metal shrapnel position to take place the skew.

Furthermore, the operating principle of the double-contact keyboard key is as follows: a metal spring 7 is fixed on the inner wall of the middle plate body 2, two contacts 71 are arranged on the metal spring 7, and two contact grooves 61 capable of accommodating the corresponding contacts 71 are formed in the outer wall of the shaft body 6; each contact 71 is in contact connection with the corresponding contact slot 61; when the keycap 1 starts to press downwards, the metal elastic sheet 7 starts to deform, and the silica gel 3 also starts to press downwards; when the button structure is continuously pressed downwards, the metal elastic sheet 7 deforms to the limit position, the double contacts are pushed out of the contact grooves 61, the metal elastic sheet 7 can generate hand feeling and sound of a mechanical shaft when rebounding, and the silica gel 3 is conducted with the conductive film 4 after being further pressed, so that the button structure conducts and works; after key cap 1 kick-backs, metal shrapnel 7 resumes original state, becomes free state by the pressurized, can produce the feel and the sound of mechanical axis equally, and above-mentioned structure has realized the two contact designs of this keyboard button, and this design makes the sound of button and the stability of hand performance all good, and the contact is wear-resisting and be difficult to influence sound and feel, and longe-lived and mould processing is easy.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A double-contact keyboard key convenient to assemble is characterized by comprising a key cap, a middle plate body, silica gel, a conductive film and a backlight plate, wherein the backlight plate is arranged below the conductive film in a laminated mode; the keycap is movably sleeved outside the upper part of the middle plate body, the bottom end of the middle plate body is fixedly connected with the conducting film, and the keycap, the middle plate body and the conducting film form a cavity for accommodating the shaft body and the silica gel; a metal elastic sheet is fixed on the inner wall of the middle plate body, two contacts are arranged on the metal elastic sheet, and two contact grooves capable of accommodating the corresponding contacts are formed in the outer wall of the shaft body; each contact is in contact connection with the corresponding contact slot.

2. The dual-contact keyboard key convenient to assemble as claimed in claim 1, wherein the outer wall of the shaft body is provided with two symmetrical clipping parts, the middle plate body is provided with clipping grooves corresponding to the clipping parts, and the clipping parts are movably installed in the clipping grooves and can move up and down.

3. The dual-contact keyboard key of claim 2, wherein the shaft body is provided with a contact position-limiting post on an outer wall adjacent to the engaging portion, and the contact grooves are formed on both sides of the contact position-limiting post.

4. The dual-contact keyboard key as claimed in claim 3, wherein the shaft body has a square structure, and two supporting plates are disposed inside the shaft body and distributed in an X-shape, two ends of the two supporting plates are connected to four bottom corners of the shaft body respectively to divide the shaft body into four independent cavities, and the engaging portion and the contact groove are located in two adjacent cavities.

5. The dual-contact keypad of claim 1, wherein the metal dome comprises a fixing portion, extending portions extending upward along both sides of the fixing portion, and inclined portions extending obliquely along each of the extending portions, and each of the contacts is bent along an end of each of the inclined portions; the fixed part, the extending part, the inclined part and the contact are integrally formed, the bottom end of the fixed part is fixed on the inner wall of the middle plate body, and the extending part and the inclined part are suspended in the middle plate body.

6. The dual-contact keyboard key convenient to assemble as claimed in claim 5, wherein the middle plate body is provided with an avoiding position for avoiding the metal elastic sheet, the fixing portion further extends upwards to form a limiting piece, the avoiding position is provided with a limiting groove adapted to the limiting piece, the end of the limiting groove is provided with a limiting protrusion, and the limiting piece is clamped in the limiting groove and abuts against the limiting protrusion to form a limiting structure.