CN105990064A - Instruction-triggered structure of thin type keyboard - Google Patents

Abstract

The invention provides an instruction-triggered structure of a thin type keyboard, which comprises a circuit board and a frame. The frame is stacked on the circuit board and is integrally formed with an outer frame body, a plurality of inner frame bodies and a plurality of key caps. The outer frame body is provided with a plurality of accommodating regions. Each key cap is accommodated inside one accommodating region respectively. The outer frame body and the key cap are connected through the inner frame body. Each inner frame body is provided with at least two first connecting parts connected with the outer frame body, and at least two second connecting parts connected with the above key cap. Meanwhile, a support part is arranged between each first connecting part and each second connecting part, and is used for generating a deformation to drive the key cap to move. The support part is provided with a bending point. The height of the support part on the second connecting part is larger than the height of the first connecting part. The height of the bending point is smaller than or equal to the height of the first connecting part.

Description

Command-triggered structure of thin keyboard

technical field

The invention relates to an instruction triggering structure of a keyboard, in particular to an instruction triggering structure which uses a frame structure instead of a conventional keycap interlocking mechanism to make the keyboard thinner.

Background technique

Conventional keyboards are disclosed in Taiwan Patent No. 445471, No. I220213, and No. M346861. They generally have a keycap, a circuit board that is triggered by the keycap to generate command signals, and a substrate that is arranged on one side of the circuit board. , and a linkage mechanism whose two ends are respectively connected to the keycap and the substrate. In the known keyboard structure, when the keycap is displaced relative to the circuit board by force, the linkage mechanism is pressed downward to touch a circuit switch on the circuit board, so that the circuit switch is turned on to generate a corresponding control signal. When the keycap is not displaced toward the circuit board under force, the interlocking mechanism provides a rebound force for the keycap, normally pushes the keycap away from the circuit board, and has a height relative to the circuit board. However, the linkage mechanism requires a certain height of assembly space, resulting in a certain thickness of the keyboard structure. However, looking at the current computer design requirements, most of the products are light and thin. Especially for notebook computers, the ratio of the thickness of the keyboard module to the overall thickness is a major factor affecting the thickness of notebook computers. Therefore, various manufacturers All of them are committed to the thin design of the keyboard structure, hoping to greatly reduce the thickness of the keyboard structure.

In order to overcome the above-mentioned problems, some manufacturers have proposed another keyboard structure design. As disclosed in the Taiwan Patent No. M434979, the disclosed key is a V-shaped structure formed by a combination of a first support member and a second support member. It overcomes the keyboard thickness problem caused by implementing the conventional interlocking mechanism in an X-shaped structure. Or it is disclosed in Taiwan Patent No. M419973, which replaces the conventional linkage mechanism with a telescopic lifting structure arranged between the keycap and the circuit board, so as to facilitate the implementation of miniaturization. Or as disclosed in Taiwan Patent No. M426075 of China, the conventional linkage mechanism is replaced by the first supporting member and the second supporting member arranged around the keycap to reduce the overall thickness of the keyboard structure. Although the technical solutions disclosed in the above-mentioned patents can make the overall thickness thinner, in fact, the interlocking mechanism is only implemented in another form, and the keyboard structure still has a certain thickness. In addition, the structures disclosed in the above patents also have the problem that they cannot be easily assembled.

Contents of the invention

The main purpose of the present invention is to solve the problem that the conventional keyboard structure cannot be specifically thinned.

To achieve the above purpose, the present invention provides a command trigger structure of a thin keyboard, the command trigger structure includes a circuit board and a frame. The circuit board has a plurality of triggering parts that are respectively touched to generate a keyboard command. The frame is stacked on the circuit board and integrally formed with an outer frame body, a plurality of inner frame bodies and a plurality of keycaps. The outer frame body There are a plurality of accommodating areas corresponding to each of the triggering parts, each of the keycaps is respectively set in the accommodating area corresponding to one of the triggering parts, and the inner frame is used between the outer frame body and the keycap Body connection, wherein each inner frame has at least two first connecting portions connecting the outer frame and at least two second connecting portions connecting the keycap, and the first connecting portion and the second connecting portion A supporting part is connected between them to generate deformation elastic force to constitute the displacement of the keycap to the stroke of the trigger part, the supporting part has a bending point, and defines the bending point to the first connecting part as a first connecting section, The bending point to the second connecting portion is a second connecting section. Wherein, the height of the second connecting portion in the accommodating region>the first connecting portion, and the height of the bending point≦the first connecting portion.

In one embodiment, the height of the second connecting portion in the accommodating region≧the first connecting portion, and the height of the bending point<the first connecting portion and the second connecting portion.

In one embodiment, the change in height of the inner frame in the accommodating area is in the order of the second connecting portion≧the bending point>the first connecting portion.

In one embodiment, the plurality of accommodating areas enable the plurality of keycaps to be installed therein horizontally or vertically, and the frame has a supporting rib between two adjacent accommodating areas.

In one embodiment, the width of the first connecting portion gradually increases from the connection between the first connecting portion and the outer frame toward the direction of the supporting portion, and the width of each second connecting portion is determined by the second The connecting part and the supporting part are tapered toward the connecting part with the keycap.

In one embodiment, there is a displacement zone between each keycap and the circuit board, and an elastic supporting body is provided in the displacement zone to assist the displacement of the keycap relative to the circuit board.

In one embodiment, each of the triggering parts includes a main trigger switch and a plurality of auxiliary trigger switches electrically connected to each other, and each of the elastic supports has a plurality of corresponding to the main trigger switch and the auxiliary trigger switches contact part.

In one embodiment, the second connecting section is an arc surface.

Through the above-mentioned implementation mode of the present invention, it has the following characteristics compared with conventional ones:

1. The overall thickness of the keyboard can be specifically thinned. The present invention uses the outer frame body and the inner frame body formed on the frame to support each of the keycaps, so that each of the keycaps is arranged in the accommodating area of the frame, and each of the keycaps is formed. The reciprocating displacement saves the keycap linkage mechanism in the conventional keyboard structure.

2. Since the conventional keycap linkage mechanism is omitted in this case, the overall structure of the keyboard is simplified, and there is no need for cumbersome alignment procedures during the assembly process.

3. Through the height change of the supporting part, different pressing sensations are provided.

Description of drawings

Fig. 1 is a schematic top view of the frame of the first embodiment of the present invention.

Fig. 2 is a partial sectional view of the frame of the first embodiment of the present invention.

Fig. 3 is a partial sectional view of a frame of a second embodiment of the present invention.

Fig. 4 is a partial sectional view of a frame of a third embodiment of the present invention.

Fig. 5 is an exploded view of the structure of the thin keyboard according to the first embodiment of the present invention.

FIG. 6 is a schematic diagram of the implementation of pressing the keyboard on the line segment A-A in FIG. 5 of the present invention.

Fig. 7 is a schematic diagram of the implementation of the pressing of the line segment B-B keyboard in Fig. 5 of the present invention.

Fig. 8 is a schematic top view of the framework of the fourth embodiment of the present invention.

Fig. 9 is an exploded view of the structure of the thin keyboard according to the fifth embodiment of the present invention.

detailed description

Detailed description and technical content of the present invention, now just explain as follows with respect to matching drawing:

Please refer to FIG. 1 to FIG. 5 , the command trigger structure of the thin keyboard of the present invention provides the user with force to press and trigger to generate a keyboard command. The instruction trigger structure includes a circuit board 1 and a frame 2 . More specifically, the circuit board 1 has to be further assembled with a keyboard bottom plate (not shown in this figure), and the circuit board 1 has a plurality of triggering parts 11 that are respectively contacted to generate the keyboard commands, and the triggering parts 11 are the circuit board 1 trigger electrodes laid out. Moreover, the frame 2 of the present invention can be integrally made of a plastic through mechanical processing. The frame 2 is stacked on the circuit board 1 and integrally formed with an outer frame 21 , a plurality of inner frames 22 and a plurality of keycaps 23 . Wherein, the outer frame body 21 has a plurality of accommodating areas 211 respectively corresponding to each of the triggering parts 11 , and each of the keycaps 23 is located in the accommodating areas 211 and respectively corresponding to one of the triggering parts 11 . Moreover, each of the inner frames 22 is respectively set corresponding to one of the keycaps 23, and each of the inner frames 22 has at least two first connecting portions 221 connected to the outer frame 21 and at least two first connecting portions 221 connected to the keycaps. 23 of the second connecting portion 222, and between the first connecting portion 221 and the second connecting portion 222 is connected a supporting portion 223 that generates deformation elastic force to form the keycap to move to the stroke of the triggering portion. Further, the supporting portion 223 has a bending point 224, and defines the first connecting section 225 from the bending point 224 to the first connecting portion 221, and defines the second connecting section 225 from the bending point 224 to the second connecting portion 222. Connection section 226 . Moreover, the bending point 224 of the support portion 223 can be further disposed at an end corner of the keycap 23 . In one embodiment, the height of the second connecting portion 222 in the accommodating area 211>the first connecting portion 221, and the height of the bending point 223≦the first connecting portion 221, as shown in the figure 2. Furthermore, in one embodiment, the second connecting section 226 is an arc surface.

Based on the above, during the implementation of the command trigger structure of the present invention, the frame 2 is stacked on the circuit board 1, and each of the keycaps 23 is respectively corresponding to the plurality of triggering parts 11 on the circuit board 1 one of the . When the keycap 23 is not pressed, the inner frame body 22 supports the keycap 23 with the first connection section 225 and the second connection section 226 and is located in the accommodating area 211, so that the keycap 23 is not Contacting with the trigger portion 11 on the circuit board 1 , a displacement zone 3 is formed between the keycap 23 and the circuit board 1 . However, when the keycap 23 is subjected to a force applied by the user to displace in the direction of the trigger part 11, the inner frame body 22 takes the first connecting part 221 as a supporting point, and uses the second connecting part 222 as a supporting point. A force application point causes the first connecting section 225 and the second connecting section 226 to deform, the keycap 23 is displaced toward the triggering part 11, and the triggering part 11 is triggered to generate the keyboard command. Its implementation is as shown in the figure 6 and Figure 7. And when the active force applied to the keycap 23 disappears, the first connecting section 225 on each support portion 223 returns to its original state due to its own elastic force, and returns to the unpressed state, and drives the The keycap 23 is far away from the trigger part 11, so that the keycap 23 returns to the state where no force is pressed.

Continuing, please refer to FIGS. 3 to 4 again. In addition to the above-mentioned embodiments, the present invention can further change the shape of the inner frame 22 to change the pressing feel of the command trigger structure. In one embodiment, the height of the second connecting portion 222 of the inner frame 22 in the accommodating area 211 ≧ the first connecting portion 221 , and the height of the bending point 223 < the first connecting portion 221 And the second connecting portion 222, its appearance is just as shown in FIG. 3 . Further, the height change of the inner frame body 22 in the accommodating area 211 is in the order of the second connecting portion 222≧the bending point 223>the first connecting portion 221, and its appearance is shown in FIG. 4 .

Referring again to FIG. 1 , in an embodiment of the present invention, the accommodating areas 211 and 212 provided on the outer frame body 21 can be appropriately adjusted according to design requirements. For example, each of the accommodating areas 211 and 212 can be set for each of the triggering parts 11 respectively. Alternatively, each accommodating area 211 , 212 includes a plurality of triggering parts 11 within the opening range. Furthermore, the plurality of accommodating areas 211, 212 of the present invention provide that the plurality of keycaps 23 on the thin keyboard can be installed therein in a horizontal or vertical manner, and the outer frame 21 is positioned between adjacent two A supporting rib 213 is provided between the accommodating areas 211, 212. In addition to providing one of the first connecting parts 221 of the inner frame body 22 connected thereon, the supporting rib 213 can also limit each key The range of movement of the caps 23 avoids the problem of excessive deflection of each keycap 23 due to improper force exerted by the user. Based on the above, please refer to FIG. 8 again. In one embodiment, the width of the inner frame body 22 at the first connecting portion 221 is supported by the connection between the first connecting portion 221 and the outer frame body 21. The direction of the portion 223 increases gradually, and the width of each second connecting portion 222 is tapered from the connection between the second connection portion 222 and the support portion 223 toward the connection with the keycap 23, thereby increasing the inner width. The structural strength of the frame body 22 as a whole.

Furthermore, as described in the above-mentioned embodiments, it can be known that the keycap 23 of the present invention is formed with the displacement region 3 relative to the circuit board 1 when it is not pressed by force. In one embodiment, the command triggering structure of the present invention is provided with an elastic support body 4 that assists each of the keycaps 23 to be displaced relative to the circuit board 1 at a position corresponding to the displacement zone 3 on the circuit board 1. In one embodiment, the supporting body 4 can be a reed or an elastic sponge. Again, each of the elastic supports 4 is provided corresponding to each of the trigger parts 11, and further has a pair of contact parts 41 of the trigger parts 11, the contact parts 41 are not in contact with the trigger part 11 normally, but in the elastic When the supporting body 4 is pressed by the corresponding keycap 23 to deform, the contact portion 41 contacts the trigger portion 11 to generate the keyboard command. Also, referring to FIG. 9 , in one embodiment, each of the trigger parts 11 on the circuit board 1 includes a main trigger switch 111 and a plurality of auxiliary trigger switches 112 electrically connected to each other, corresponding to each of the trigger parts. The elastic supporting body 4 provided on the trigger part 11 has a plurality of contact parts 41 , 42 respectively corresponding to the main trigger switch 111 and the secondary trigger switch 112 . Further, in the present invention, the trigger portion 41 corresponding to the main trigger switch 111 can be designed to be longer than the other trigger portions 42 corresponding to each of the secondary trigger switches 112 . In this way, the problem that the keycap 23 is shifted in the displacement direction due to improper force exerted by the user can be avoided, so that the keyboard command unit 11 cannot be triggered reliably.

To sum up, the command trigger structure of the thin keyboard includes a circuit board and a frame. The frame is stacked on the circuit board, and integrally formed with an outer frame body, a plurality of inner frame bodies and a plurality of keycaps, the outer frame body has a plurality of accommodating areas, and each of the keycaps is respectively arranged in one of them. The accommodating area, and the outer frame and the keycap are connected by the inner frame, each inner frame has at least two first connecting parts connected to the outer frame and at least two first connecting parts connected to the keycap The second connection part, and a support part that generates deformation to provide keycap displacement is provided between the first connection part and the second connection part, the support part has a bending point, and the support part is connected to the second connection part The height of the supporting portion>the first connecting portion, and the height of the supporting portion at the bending point≦the first connecting portion. In this way, the keycap linkage included in the conventional keyboard structure can be omitted, so that the overall thickness of the keyboard structure can be more specifically thinned, and is no longer limited by the height of the keycap linkage.

Claims (18)

1. An instruction trigger structure of a thin keyboard, characterized in that it comprises: A circuit board having a plurality of triggering parts which are respectively touched to generate a keyboard command; and A frame, stacked on the circuit board and integrally formed with an outer frame body, a plurality of inner frame bodies and a plurality of keycaps, the outer frame body has a plurality of accommodating areas corresponding to each of the trigger parts, each The keycaps are respectively arranged in the accommodating area corresponding to one of the triggering parts, and the outer frame body and the keycap are connected by the inner frame body, wherein each inner frame body has at least two outer frame bodies connected to the outer frame body. The first connection part of the frame body and at least two second connection parts connected to the keycap, and between each of the first connection parts and each of the second connection parts is connected to generate deformation elastic force to form the key The cap is displaced to a supporting part of the stroke of the trigger part, the supporting part has a bending point, and defines the bending point to the first connecting part as a first connecting section, and the bending point to the second connecting part is a second connecting segment; Wherein, the height of the second connecting portion in the accommodating region>the first connecting portion, and the height of the bending point≦the first connecting portion. 2. The command triggering structure of the thin keyboard according to claim 1, wherein the plurality of accommodating areas enable the plurality of keycaps to be installed horizontally or vertically, and the frame is located between two adjacent There is a supporting rib between the accommodation areas. 3. The instruction triggering structure of the thin keyboard according to claim 1 or 2, characterized in that, the width of the first connecting portion gradually increases from the connection between the first connecting portion and the outer frame toward the supporting portion , the width of each second connecting portion is tapered from the connecting portion of the second connecting portion with the supporting portion toward the connecting portion of the keycap. 4. The command triggering structure of the thin keyboard according to claim 1, wherein there is a displacement interval between each of the keycaps and the circuit board, and an auxiliary device is provided in the displacement interval to assist the keycap to be relatively to the circuit board. Displacement elastic support body. 5. The instruction triggering structure of the thin keyboard as claimed in claim 4, wherein each triggering part includes a main trigger switch and a plurality of auxiliary trigger switches electrically connected to each other, and each of the elastic supports has A plurality of contact portions respectively correspond to the main trigger switch and the auxiliary trigger switch. 6. The instruction triggering structure of a thin keyboard as claimed in claim 1, wherein the second connecting section is an arc surface. 7. An instruction trigger structure of a thin keyboard, characterized in that it comprises: A circuit board having a plurality of triggering parts which are respectively touched to generate a keyboard command; and A frame, stacked on the circuit board and integrally formed with an outer frame body, a plurality of inner frame bodies and a plurality of keycaps, the outer frame body has a plurality of accommodating areas corresponding to each of the trigger parts, each The keycaps are respectively arranged in the accommodating area corresponding to one of the triggering parts, and the outer frame body and the keycap are connected by the inner frame body, wherein each inner frame body has at least two outer frame bodies connected to the outer frame body. The first connection part of the frame body and at least two second connection parts connected to the keycap, and between each of the first connection parts and each of the second connection parts is connected to generate deformation elastic force to form the key The cap is displaced to a supporting part of the stroke of the trigger part, the supporting part has a bending point, and defines the bending point to the first connecting part as a first connecting section, and the bending point to the second connecting part is a second connecting segment; Wherein, the height of the second connecting portion in the accommodating region≧the first connecting portion, and the height of the bending point<the first connecting portion and the second connecting portion. 8. The instruction triggering structure of the thin keyboard according to claim 7, wherein the plurality of accommodating areas enable the plurality of keycaps to be installed horizontally or vertically, and the frame is located between two adjacent There is a supporting rib between the accommodation areas. 9. The command triggering structure of the thin keyboard according to claim 7 or 8, characterized in that, the width of the first connecting portion gradually increases from the connection between the first connecting portion and the outer frame toward the supporting portion , the width of each second connecting portion is tapered from the connecting portion of the second connecting portion with the supporting portion toward the connecting portion of the keycap. 10. The instruction triggering structure of the thin keyboard according to claim 7, characterized in that, there is a displacement interval between each of the keycaps and the circuit board, and an auxiliary device is arranged in the displacement interval to assist the keycap to be relatively to the circuit board. Displacement elastic support body. 11. The instruction triggering structure of the thin keyboard according to claim 10, wherein each triggering part includes a main trigger switch and a plurality of auxiliary trigger switches electrically connected to each other, and each of the elastic supports has A plurality of contact portions respectively correspond to the main trigger switch and the auxiliary trigger switch. 12. The instruction triggering structure of a thin keyboard as claimed in claim 7, wherein the second connecting section is an arc surface. 13. An instruction triggering structure of a thin keyboard, characterized in that it comprises: A circuit board having a plurality of triggering parts which are respectively touched to generate a keyboard command; and A frame, stacked on the circuit board and integrally formed with an outer frame body, a plurality of inner frame bodies and a plurality of keycaps, the outer frame body has a plurality of accommodating areas corresponding to each of the trigger parts, each The keycaps are respectively arranged in the accommodating area corresponding to one of the triggering parts, and the outer frame body and the keycap are connected by the inner frame body, wherein each inner frame body has at least two outer frame bodies connected to the outer frame body. The first connection part of the frame body and at least two second connection parts connected to the keycap, and between each of the first connection parts and each of the second connection parts is connected to generate deformation elastic force to form the key The cap is displaced to a supporting part of the stroke of the trigger part, the supporting part has a bending point, and defines the bending point to the first connecting part as a first connecting section, and the bending point to the second connecting part is a second connecting segment; Wherein, the height change of the inner frame in the accommodating area is in the order of the second connecting portion≧the bending point>the first connecting portion. 14. The instruction triggering structure of the thin keyboard according to claim 13, wherein the plurality of accommodating areas enable the plurality of keycaps to be installed horizontally or vertically, and the frame is located between two adjacent There is a supporting rib between the accommodation areas. 15. The instruction triggering structure of the thin keyboard according to claim 13 or 14, wherein the width of the first connecting portion gradually increases from the connection between the first connecting portion and the outer frame toward the supporting portion , the width of each second connecting portion is tapered from the connecting portion of the second connecting portion with the supporting portion toward the connecting portion of the keycap. 16. The instruction triggering structure of the thin keyboard according to claim 13, wherein there is a displacement interval between each of the keycaps and the circuit board, and an auxiliary device is provided in the displacement interval to assist the keycap to be relatively relative to the circuit board. Displacement elastic support body. 17. The instruction triggering structure of a thin keyboard as claimed in claim 16, wherein each triggering part includes a main trigger switch and a plurality of auxiliary trigger switches electrically connected to each other, and each of the elastic supports has A plurality of contact portions respectively correspond to the main trigger switch and the auxiliary trigger switch. 18. The instruction triggering structure of a thin keyboard as claimed in claim 13, wherein the second connecting section is an arc surface.