CN209822523U - Integrated key cap and keyboard with soft and hard integrated injection molding - Google Patents
Integrated key cap and keyboard with soft and hard integrated injection molding Download PDFInfo
- Publication number
- CN209822523U CN209822523U CN201920686648.7U CN201920686648U CN209822523U CN 209822523 U CN209822523 U CN 209822523U CN 201920686648 U CN201920686648 U CN 201920686648U CN 209822523 U CN209822523 U CN 209822523U
- Authority
- CN
- China
- Prior art keywords
- soft rubber
- hard
- key
- soft
- piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Push-Button Switches (AREA)
Abstract
The utility model relates to an integral type button cap and keyboard that soft or hard was moulded plastics integratively. The integrated key cap consists of an integrated soft rubber piece and a plurality of hard pieces, wherein the integrated soft rubber piece is formed by connecting a plurality of soft rubber key units, and each soft rubber key unit comprises a soft rubber key surface, a soft rubber base and a soft rubber supporting body connected between the soft rubber base and the soft rubber key surface; the hard piece comprises a hard plate, the shape and size of the hard plate are matched with the soft rubber key surface and are integrally formed on the bottom surface of the soft rubber key surface in an injection molding mode, a positioning groove is formed in the edge of the bottom surface of the hard plate, and the positioning groove and the soft rubber support body are mutually and integrally occluded in an injection molding mode; the hard piece further comprises a plurality of positioning columns which are integrally formed above the hard plate and are perpendicular to the hard plate, and the height of each positioning column is flush with the height of the soft rubber key surface. After adopting above-mentioned structure, this neotype integral type presses key cap and keyboard has the characteristics that prevent to come unstuck and enable the integrative time pinpointing of moulding plastics of soft or hard glue.
Description
Technical Field
The utility model belongs to the technical field of computer keyboard technique and specifically relates to an integral type button cap and keyboard that integrative was moulded plastics of hardness.
Background
Along with the development of information industry, computers are widely used day by day, no matter whether notebook computers or desktop computers are separated from computer keyboards, along with the development of lightening and thinning of keyboards, ultrathin keyboards come up at the same time, the structure of the ultrathin keyboard only consists of an integrated key cap, a printed circuit film positioned below the integrated key cap and a keyboard bottom plate supported below the printed circuit film, wherein the integrated key cap is formed by integrally injection molding soft rubber and a hard sheet, the soft rubber is usually injection molded on the upper part of the hard sheet, however, in the injection molding process, the sheet-shaped hard sheet is only combined with the soft rubber on the surface, when the key cap is pressed downwards, the edge of the soft rubber surface is upwards due to the supporting force of a soft rubber supporting body, the edge of the hard sheet is downwards acted, the soft rubber surface and the hard sheet are easily separated from the edge, and the degumming phenomenon is generated; on the other hand, after the soft rubber upper die and the lower die are closed, the soft rubber can not be adhered to the upper surface of the hard piece due to the fact that the hard piece floats upwards and deviates due to impact force when the soft rubber is injected; in view of this, how to design an integrated key cap and keyboard that can prevent degumming and enable the soft and hard glue to be accurately positioned during integral injection molding is a technical problem to be solved.
Disclosure of Invention
The utility model aims at providing an integral key cap and keyboard which can prevent degumming and can accurately position when soft and hard rubber are integrally injected.
In order to achieve the purpose, the novel technical scheme is as follows: the integrated key cap is formed by connecting a whole soft rubber piece and a plurality of hard pieces, wherein the whole soft rubber piece is formed by connecting a plurality of soft rubber key units, and each soft rubber key unit comprises a soft rubber key surface, a soft rubber base and a soft rubber supporting body connected between the soft rubber base and the soft rubber key surface;
the hard piece comprises a hard plate, the shape and size of the hard plate are matched with the soft rubber key surface and are integrally formed on the bottom surface of the soft rubber key surface in an injection molding mode, a positioning groove is formed in the edge of the bottom surface of the hard plate, and the positioning groove and the soft rubber support body are mutually and integrally occluded in an injection molding mode;
the hard piece further comprises a plurality of positioning columns which are integrally formed above the hard plate and are perpendicular to the hard plate, and the height of each positioning column is flush with the height of the soft rubber key surface, or the height of each positioning column is lower than the height of the soft rubber key surface.
The hard plate and the soft rubber key surface are both square or round or oval.
The hard plate and the soft rubber key surface are both square, and the positioning columns are four columns which are respectively formed at four corners of the upper surface of the hard plate.
The hard piece is a hard plastic piece or a metal piece or a ceramic piece or a glass piece.
The keyboard comprises the integrated key cap, a printed circuit film positioned below the integrated key cap and a keyboard bottom plate supported below the printed circuit film,
at least one downward convex press switch is formed downwards and is vertical to the hard plate;
the film switch point corresponding to each soft rubber key unit on the printed circuit film corresponds to the lower convex press switch;
when the finger is in a state of pressing the soft rubber key surface, the soft rubber key surface vertically moves downwards along with the downward bending of the soft rubber supporting body, the downward convex press switch fixed on the hard piece at the bottom surface of the soft rubber key surface also vertically moves downwards, and a circuit is closed when the downward convex press switch presses the corresponding membrane switch point;
when the fingers are in a state of leaving the soft rubber key-press surface, the soft rubber key-press surface recovers deformation and moves upwards, the circuit is disconnected when the lower convex press switch is separated from the corresponding membrane switch point, and the integrated key-press cap recovers an initial state.
And a soft rubber switch cylinder with a pressing buffer function is adhered to the film switch point on the printed circuit film.
The soft rubber base and the printed circuit film are bonded and sealed.
A plurality of concave groove bodies are arranged below the soft rubber base, so that the part beside the concave groove bodies on the bottom surface of the soft rubber base is bonded with the printed circuit film to form a closed air channel, and adjacent keycap cavities are communicated with each other through the corresponding closed air channels to form a closed air cavity; the concave groove body can reduce the supporting force of the soft rubber supporting body, so that the keycap is pressed more sensitively.
After the structure is adopted, the novel hard piece positioning groove has the effects that the edge of the hard piece is buckled and pressed on the edge of the lower soft rubber mould, so that the hard piece cannot move left and right due to impact force when soft rubber is injected to affect the accurate size, the hard piece positioning groove fills the soft rubber in the clamping groove when the soft rubber is injected and molded, so that the hard piece is firmly occluded with the soft rubber, the soft rubber surface edge is upwards due to the supporting force of the soft rubber supporting body when the press key cap is downwards pressed, the edge of the hard piece is downwards acted, and the hard piece and the soft rubber supporting body are torn from the edge to generate degumming; the fixed cylinder on the hard piece has the following functions: when the soft rubber upper die and the lower die are closed, the bottom of the inner cavity of the upper die is firstly pressed on the fixed column, so that the hard piece is prevented from floating and clinging to the bottom surface of the upper die due to impact force when the soft rubber is injected, the soft rubber cannot be adhered to the upper surface of the hard piece, the fixed column on the hard piece plays a role in ensuring that a certain space is reserved between the bottom surface of the soft rubber upper die and the upper surface of the hard piece, when the soft rubber is injected in the injection molding process, the soft rubber forms a soft rubber key surface in the space and adheres to the surface of the hard piece, and the forming of the soft rubber key surface is ensured to be of a; in addition, a soft rubber switch cylinder with a pressing buffer function is bonded on the membrane switch point, so that abrasion caused by hard contact between the lower convex press switch and the membrane switch point can be protected; therefore, the novel integrated key cap and keyboard have the characteristics of preventing degumming and enabling the soft and hard rubber to be accurately positioned during integrated injection molding.
Drawings
Fig. 1 is a schematic partial sectional structure diagram of a keyboard integrally formed by soft and hard materials according to the present invention;
FIG. 2 is a schematic view of an integral injection molding structure of the integrated key cap according to the present invention;
fig. 3 is a schematic perspective view of a key unit according to a first embodiment of the present invention;
fig. 4 is a schematic perspective view of a key unit according to a second embodiment of the present invention.
Detailed Description
As shown in fig. 1-4, the integrated key cap integrally molded by soft and hard materials comprises an integrated soft rubber member 100 and a plurality of hard members 20, wherein the integrated soft rubber member 100 is formed by connecting a plurality of soft rubber key units 10, and each soft rubber key unit 10 comprises a soft rubber key surface 11, a soft rubber base 12, and a soft rubber support body 13 connected between the soft rubber base 12 and the soft rubber key surface 11;
the hard piece 20 comprises a hard plate 21, the shape and size of the hard plate 21 are matched with the soft rubber key surface 11 and are integrally formed on the bottom surface of the soft rubber key surface 11 in an injection molding mode, a positioning groove 23 is formed in the edge of the bottom surface of the hard plate 21, and the positioning groove 23 and the soft rubber support body 13 are mutually and integrally occluded in an injection molding mode;
the hard piece 20 further comprises a plurality of positioning columns 24 which are integrally formed above the hard plate 21 and are perpendicular to the hard plate 21, and the height of each positioning column 24 is flush with the height of the soft rubber key surface 11, or the height of each positioning column 24 is lower than the height of the soft rubber key surface 11.
The hard plate 21 and the soft rubber key surface 11 are both square, round or oval.
The hard plate 21 and the soft rubber key surface 11 are both square, and the positioning columns 24 are four columns which are respectively formed at four corners of the upper surface of the hard plate 21.
The hard part 20 is a hard plastic part, or a metal part, a ceramic part or a glass part.
The keyboard comprises the integrated key cap, a printed circuit film 200 positioned below the integrated key cap, and a keyboard bottom plate 300 supported below the printed circuit film 200,
at least one lower convex push switch 22 is formed downward perpendicular to the hard plate 21;
the film switch point 201 corresponding to each soft rubber key unit on the printed circuit film 200 corresponds to the lower convex press switch 22;
when fingers are in a state of pressing the soft rubber button surface 11, the soft rubber button surface 11 moves downwards vertically along with the downward bending of the soft rubber supporting body 13, the lower convex press switch 22 on the hard piece 20 fixed on the bottom surface of the soft rubber button surface 11 also moves downwards vertically, and a circuit is closed when the lower convex press switch 22 presses the corresponding membrane switch point 201;
when the fingers are in a state of leaving the soft rubber key surface, the soft rubber key surface 11 restores to deform and moves upwards, the lower convex press switch 22 is separated from the corresponding membrane switch point 201 to break a circuit, and the integrated key cap restores to an initial state.
A soft rubber switch cylinder 202 with a pressing and buffering function is adhered to the film switch point 201 on the printed circuit film 200.
The soft rubber base 12 and the circuit film 200 are bonded and sealed.
A plurality of concave groove bodies 121 are formed below the soft rubber base 12, and the concave groove bodies 121 are communicated with adjacent keycap cavities.
A plurality of concave grooves 121 are formed below the soft rubber base 12, so that the parts beside the concave grooves 121 on the bottom surface of the soft rubber base 12 are bonded with the printed circuit film 200 to form closed air ducts, and adjacent keycap cavities are communicated with each other through the corresponding closed air ducts to form closed air cavities; the concave groove 121 can reduce the supporting force of the soft rubber supporting body 13, so that the keycap can be pressed more sensitively.
The novel hard piece positioning groove 23 has the effects that the edge of a hard piece 20 is buckled and pressed on the edge of a soft rubber lower die 400, so that the hard piece 20 cannot move left and right due to impact force when soft rubber is injected to affect the accurate size, the positioning groove 23 of the hard piece 20 fills soft rubber when the soft rubber is injected and molded, so that the hard piece 20 is firmly occluded with the soft rubber, the soft rubber surface edge is upwards due to the supporting force of a soft rubber supporting body 13 when a key cap is pressed downwards, the acting force of the edge of the hard piece 20 is downwards, the hard piece 20 and the soft rubber are torn from the edge to generate degumming; and the fixed column 24 on the hard piece 20 has the functions of: when the soft rubber upper die 500 and the lower die 400 are closed, the bottom of the inner cavity of the upper die 500 is firstly pressed on the fixing column 24, so that the hard piece 20 is prevented from floating up and clinging to the bottom surface of the upper die 500 due to impact force when the soft rubber is injected, and the soft rubber can not be adhered to the upper surface of the hard piece 20, therefore, the fixing column 24 on the hard piece 20 plays a role in ensuring that a certain space is formed between the bottom surface of the soft rubber upper die 500 and the upper surface of the hard piece 20, when the soft rubber is injected by injection, the soft rubber forms a soft rubber key surface in the space and is adhered to the surface of the hard piece 20, and the forming of the soft rubber key surface 11 is ensured; in addition, a soft rubber switch cylinder 202 with a pressing and buffering effect is bonded on the membrane switch point 201, so that abrasion caused by hard contact between the lower convex press switch 22 and the membrane switch point 201 can be protected; in addition, the positioning columns 24 and the positioning grooves 23 on the upper parts of the hard pieces 20 can enable the soft and hard rubber to be more firmly and accurately positioned during integral molding; and a plurality of concave groove bodies 121 are arranged below the soft rubber base 12, the concave groove bodies 121 are communicated with adjacent keycap cavities, and the pressed key is helped to recover deformation through the backflow of gas in the mutually communicated closed space. Therefore, the novel integrated key cap and keyboard have the characteristics of preventing degumming and enabling the soft and hard rubber to be accurately positioned during integrated injection molding.
Claims (9)
1. The integrated key cap is formed by connecting a whole soft rubber piece and a plurality of hard pieces, wherein the whole soft rubber piece is formed by connecting a plurality of soft rubber key units, and each soft rubber key unit comprises a soft rubber key surface, a soft rubber base and a soft rubber supporting body connected between the soft rubber base and the soft rubber key surface;
the method is characterized in that: the hard piece comprises a hard plate, the shape and size of the hard plate are matched with the soft rubber key surface and are integrally formed on the bottom surface of the soft rubber key surface in an injection molding mode, a positioning groove is formed in the edge of the bottom surface of the hard plate, and the positioning groove and the soft rubber support body are mutually and integrally occluded in an injection molding mode;
the hard piece further comprises a plurality of positioning columns which are integrally formed above the hard plate and are perpendicular to the hard plate, and the height of each positioning column is flush with the height of the soft rubber key surface, or the height of each positioning column is lower than the height of the soft rubber key surface.
2. The integrated key cap integrally molded by injection molding according to claim 1, wherein: the hard plate and the soft rubber key surface are both square or round or oval.
3. The integrated key cap integrally molded by injection molding according to claim 2, wherein: the hard plate and the soft rubber key surface are both square, and the positioning columns are four columns which are respectively formed at four corners of the upper surface of the hard plate.
4. The integrated key cap integrally molded by injection molding according to claim 2, wherein: the hard plate and the soft rubber key surface are both square, and the positioning columns are four columns which are respectively formed on four edges of the upper surface of the hard plate.
5. The integrated key cap integrally molded by injection molding according to claim 1, wherein: the hard piece is a hard plastic piece or a metal piece or a ceramic piece or a glass piece.
6. The keyboard with the soft and hard integrally injection-molded integrated key cap is characterized in that: the keyboard comprises the integrated key cap, a printed circuit film positioned below the integrated key cap and a keyboard bottom plate supported below the printed circuit film,
at least one downward convex press switch is formed downwards and is vertical to the hard plate;
the film switch point corresponding to each soft rubber key unit on the printed circuit film corresponds to the lower convex press switch;
when the finger is in a state of pressing the soft rubber key surface, the soft rubber key surface vertically moves downwards along with the downward bending of the soft rubber supporting body, the downward convex press switch fixed on the hard piece at the bottom surface of the soft rubber key surface also vertically moves downwards, and a circuit is closed when the downward convex press switch presses the corresponding membrane switch point;
when the fingers are in a state of leaving the soft rubber key-press surface, the soft rubber key-press surface recovers deformation and moves upwards, the circuit is disconnected when the lower convex press switch is separated from the corresponding membrane switch point, and the integrated key-press cap recovers an initial state.
7. The keyboard with the soft and hard integrally injection molded integral key cap as claimed in claim 6, wherein: and a soft rubber switch cylinder with a pressing buffer function is adhered to the film switch point on the printed circuit film.
8. The keyboard with the soft and hard integrally injection molded integral key cap as claimed in claim 7, wherein: the soft rubber base and the printed circuit film are bonded and sealed.
9. The keyboard with soft and hard integrally injection molded integral key caps as claimed in claim 8, wherein: a plurality of concave groove bodies are arranged below the soft rubber base, so that the parts beside the concave groove bodies on the bottom surface of the soft rubber base are bonded with the printed circuit film to form closed air ducts, and adjacent keycap cavities are communicated with each other through the corresponding closed air ducts to form closed air cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920686648.7U CN209822523U (en) | 2019-05-15 | 2019-05-15 | Integrated key cap and keyboard with soft and hard integrated injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920686648.7U CN209822523U (en) | 2019-05-15 | 2019-05-15 | Integrated key cap and keyboard with soft and hard integrated injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209822523U true CN209822523U (en) | 2019-12-20 |
Family
ID=68883597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920686648.7U Expired - Fee Related CN209822523U (en) | 2019-05-15 | 2019-05-15 | Integrated key cap and keyboard with soft and hard integrated injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209822523U (en) |
-
2019
- 2019-05-15 CN CN201920686648.7U patent/CN209822523U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101414518B (en) | Computer keyboard and molding technique | |
| CN105632821A (en) | Soft plastic and hard sheet integrated injection-molded keyboard, keycap and production method | |
| TW201432762A (en) | Narrow key switch | |
| US20190232540A1 (en) | Keyboard integrally formed by injection molding, and mold | |
| CN201622961U (en) | Pressing structure of thinned keyboard | |
| CN101673635B (en) | Ultrathin mobile terminal key and processing method thereof | |
| CN104377065A (en) | Magnetic key and keyboard with magnetic keys | |
| WO2018040825A1 (en) | Soft rubber keyboard with hard sheet bonded to bottom portion thereof | |
| CN209822523U (en) | Integrated key cap and keyboard with soft and hard integrated injection molding | |
| CN201853596U (en) | Key and keyboard | |
| WO2019015697A1 (en) | Integrated-type notbeook keyboard | |
| CN206401220U (en) | A kind of keyboard, the keycap of flexible glue and hard piece integrated injection molding | |
| CN206076125U (en) | A kind of flexible glue keyboard that hard piece is switched with convex | |
| CN201348959Y (en) | Thin film switch and thin film switch key | |
| CN110189947B (en) | Multipoint-controlled pneumatic keyboard and key cap accurate injection molding method thereof | |
| CN106128830A (en) | By the keyboard of injection moulding integrated molding, mould and production method | |
| CN209822524U (en) | Ultra-thin keyboard of multiple spot press control | |
| CN204204708U (en) | Magnetic key and keyboard thereof | |
| CN200941354Y (en) | Thin press key panel structure | |
| CN202839405U (en) | Ultra-thin keyboard | |
| CN201716675U (en) | Key and keyboard | |
| US20150129406A1 (en) | Keyboard device | |
| CN101477912A (en) | Press-key manufacturing method and apparatus thereof | |
| CN2136493Y (en) | Improved keyboard structure for computer | |
| CN210362256U (en) | Injection mold of flexible keyboard key support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 Termination date: 20200515 |