TWI536418B - The instruction of the thin keyboard triggers the structure - Google Patents

Description

Instruction trigger structure for thin keyboard

The invention relates to an instruction triggering structure of a keyboard, in particular to an instruction triggering structure which replaces a conventional keycap linkage mechanism with a frame structure to make the keyboard thinner.

The conventional keyboard has a keycap, a circuit board triggered by the keycap to generate a command signal, and a substrate disposed on one side of the circuit board, as disclosed in the Chinese Patent No. 445471, No. I220213, and No. M346861. And an interlocking mechanism for connecting the keycap to the substrate at one end. In a conventional keyboard architecture, when the keycap is displaced relative to the circuit board, the linkage mechanism is pressed to press down a circuit switch on the circuit board, so that the circuit switch is turned on to generate corresponding control. Signal. When the keycap is not forced to displace the circuit board, the linkage mechanism provides the resilient cap of the keycap, which normally pushes the keycap away from the circuit board and has a height relative to the circuit board. However, the linkage mechanism needs to have a certain height of assembly space, resulting in a certain thickness of the keyboard structure. However, looking at the current computer design needs, most of the light and thin products are the main demands. 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 the notebook. Therefore, each family Manufacturers are all committed to the thin design of the keyboard structure, which can significantly reduce the thickness of the keyboard structure.

In order to overcome the above problems, another manufacturer has proposed another keyboard structure design. As disclosed in the Patent No. M434979 of the Republic of China, the button is a combination of a first support member and a second support member to form a V-shaped structure. Overcoming the keyboard thickness brought by the implementation of the X-shaped structure of the conventional linkage mechanism Degree problem. It is also disclosed in the Patent No. M419973 of the Republic of China, which replaces the conventional linkage mechanism by a telescopic lifting structure disposed between the keycap and the circuit board to facilitate miniaturization. Or, as disclosed in the Patent No. M426075 of the Republic of China, the first support member and the second support member disposed around the keycap are used instead of the conventional linkage mechanism to reduce the overall thickness of the keyboard structure. Although the technical solution disclosed in the above patents can make the overall thickness thinner, in reality, only the interlocking mechanism is implemented in another form, and the keyboard structure still has a certain thickness. In addition, the structure disclosed in the above patent also has the problem that it cannot be easily assembled.

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

To achieve the above objective, the present invention provides an instruction triggering structure for a thin keyboard, the command triggering structure including a circuit board and a frame. The circuit board has a plurality of trigger portions respectively generated by contact to generate a keyboard command. The frame is superposed on the circuit board and integrally formed with an outer frame body, a plurality of inner frame bodies and a plurality of key caps, wherein the outer frame body has a plurality of corresponding Each of the keycaps is disposed in the accommodating area, and each of the keycaps is disposed in the accommodating area, and the outer frame is connected to the keycap by the inner frame. Each of the inner frames has at least two first connecting portions connecting the outer frame and at least two second connecting portions connecting the key caps, and is connected between the first connecting portions and the second connecting portions. Forming the elastic force to form a supporting portion of the keycap displacement to the stroke of the triggering portion, the supporting portion is provided with a bending point, and defining the bending point to the first connecting portion as a first connecting portion, the bending point to the The second connecting portion is a second connecting portion. The height of the second connecting portion in the accommodating area is > the first connecting portion, and the height of the bending point is ≦ the first connecting portion.

In one embodiment, the second connecting portion is at a height of the receiving area ≧ the first connecting portion, and the height of the bending point is < the first connecting portion and the second connecting portion.

In one embodiment, the height of the inner frame in the accommodating area is sequentially changed to the second connecting portion 弯 the bending point> the first connecting portion.

In an embodiment, the accommodating regions are extended along the horizontal or vertical direction of the frame, so that the key caps are arranged in the direction of the accommodating region, and the frame has a Support ribs.

In an embodiment, the width of the first connecting portion is gradually increased from the connection between the first connecting portion and the outer frame toward the supporting portion, and the width of each of the second connecting portions is determined by the second The connection of the connecting portion to the support portion is tapered toward the connection with the keycap.

In an embodiment, each of the keycaps and the circuit board has a displacement interval, and the displacement section is provided with an elastic support body for assisting displacement of the keycap relative to the circuit board. In an embodiment, each of the triggering portions includes a main trigger switch and a plurality of sub-trigger switches electrically connected to each other, and each of the elastic support bodies has a plurality of contacts corresponding to the main trigger switch and the sub-trigger switch respectively. unit.

In an embodiment, the second connecting segment is a curved surface.

Through the above embodiments of the present invention, the following features are compared with the conventional ones:

First, the overall thickness of the keyboard can be specifically thinned. The outer frame body and the inner frame formed on the frame support each of the key caps, so that each of the key caps is disposed in the accommodating area of the frame, and is generated in each of the key caps. The reciprocating displacement eliminates the keycap linkage mechanism in the conventional keyboard structure.

Second, since the key cap interlocking mechanism is omitted in the present case, the overall structure of the keyboard is simplified, and in the process of assembly, no complicated alignment procedure is required.

Third, through the height change of the support portion, providing different pressing feel.

1‧‧‧ boards

11‧‧‧Trigger

111‧‧‧Main trigger switch

112‧‧‧Sub trigger switch

2‧‧‧Frame

21‧‧‧Outer frame

211, 212‧‧‧ accommodating area

213‧‧‧Support ribs

22‧‧‧ inner frame

221‧‧‧First Connection

222‧‧‧Second connection

223‧‧‧Support

224‧‧‧ bend points

225‧‧‧First connection segment

226‧‧‧Second connection

23‧‧‧Key Cap

3‧‧‧displacement interval

4‧‧‧elastic support

41, 42‧‧‧Contacts

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

Figure 2 is a partial cross-sectional view showing the frame of the first embodiment of the present invention.

Figure 3 is a partial cross-sectional view showing the frame of the second embodiment of the present invention.

Figure 4 is a partial cross-sectional view showing the frame of the third embodiment of the present invention.

Fig. 5 is an exploded perspective view showing the thin keyboard of the first embodiment of the present invention.

Fig. 6 is a schematic view showing the implementation of the force pressing of the line A-A of Fig. 5 in the present invention.

FIG. 7 is a schematic view showing the implementation of the force pressing of the line segment B-B of FIG. 5 in the present invention.

Figure 8 is a top plan view of a frame of a fourth embodiment of the present invention.

Figure 9 is an exploded perspective view showing a thin keyboard of a fifth embodiment of the present invention.

The detailed description and the technical content of the present invention are described below with reference to the following drawings: Referring to FIG. 1 to FIG. 5, the command triggering structure of the thin keyboard of the present invention provides a user with a force pressing trigger to generate a keyboard command. The command trigger structure includes a circuit board 1 and a frame 2. More specifically, the circuit board 1 is further assembled with a keyboard backplane (not shown) having a plurality of triggering portions 11 that are respectively brought into contact to generate the keyboard command, and the triggering portion 11 is the circuit board 1 The trigger electrode that is placed. Moreover, the frame 2 of the present invention is integrally formed by mechanically processing a frame 2 which is superposed on the circuit board 1 and integrally formed with an outer frame body 21, a plurality of inner frame bodies 22 and a plurality of key caps 23. The outer frame body 21 has a plurality of corresponding to each of the triggering portions 11 respectively. The accommodating area 211 is disposed, and each of the keycaps 23 is located in the accommodating area 211 and corresponding to one of the triggering parts 11 respectively. Moreover, each of the inner frame bodies 22 is respectively disposed corresponding to one of the key caps 23, and each of the inner frame bodies 22 has at least two first connecting portions 221 connecting the outer frame bodies 21 and at least two connecting the key caps 23. The second connecting portion 222 is connected between the first connecting portion 221 and the second connecting portion 222 to form a supporting portion 223 for generating a deformation elastic force to constitute a displacement of the key cap to the trigger portion. Further, the support portion 223 is provided with a bending point 224, and the bending point 224 is defined to the first connecting portion 221 as a first connecting portion 225, and the bending point 224 to the second connecting portion 222 is a second Connection segment 226. Moreover, the bending point 224 of the support portion 223 can be further disposed at an end corner position of the keycap 23. In one embodiment, the height of the second connecting portion 222 in the accommodating region 211 is > the first connecting portion 221, and the height of the bending point 223 is ≦ the first connecting portion 221, and the aspect thereof is as shown in the figure. 2 is shown. Moreover, in an embodiment, the second connecting segment 226 is a curved surface.

As described above, in the implementation of the instruction triggering structure of the present invention, the frame 2 is stacked on the circuit board 1, and each of the keycaps 23 respectively corresponds to the triggering portions 11 on the circuit board 1. one of them. When the keycap 23 is not pressed, the inner frame 22 supports the key cap 23 with the first connecting portion 225 and the second connecting portion 226 to be located in the receiving area 211, so that the key cap 23 is not The trigger portion 11 on the circuit board 1 is in contact with each other to form a displacement section 3 between the keycap 23 and the circuit board 1. However, when the keycap 23 is biased by the user in the direction of the triggering portion 11, the inner frame 22 has the first connecting portion 221 as a supporting point, and the second connecting portion 222 is the second connecting portion 222. A force applying point causes the first connecting segment 225 and the second connecting segment 226 to be deformed, and the key cap 23 is displaced toward the triggering portion 11 to trigger the triggering portion 11 to generate the keyboard command, and the implementation manner is as follows. Figure 6 and Figure 7. When the force applied to the keycap 23 disappears, the first connecting section 225 on each of the supporting portions 223 is returned to the original state due to its own elastic force, and returns to the unstressed type, and drives the The keycap 23 is away from the triggering portion 11, so that the keycap 23 is restored to the state of being unstressed. Referring to FIG. 3 to FIG. 4, in addition to the above embodiments, the present invention may further change the aspect of the inner frame 22 to change the pressing feel of the command trigger structure. In an embodiment, the second connecting portion 222 of the inner frame 22 is at the height of the receiving area 211 to the first connecting portion 221, and the height of the bending point 223 is < the first connecting portion 221 And the second connecting portion 222, the aspect of which is as shown in FIG. Further, the height change of the inner frame 22 in the accommodating area 211 is sequentially the second connecting portion 222, the bending point 223> the first connecting portion 221, and the aspect thereof is as shown in FIG. .

Referring to FIG. 1 , in an embodiment of the present invention, the accommodating regions 211 and 212 formed on the outer frame 21 can be appropriately adjusted according to design requirements. For example, each of the accommodating regions 211, 212 may be provided for each of the trigger portions 11, respectively. Alternatively, each of the accommodating regions 211 and 212 includes a plurality of the triggering portions 11 . Furthermore, the accommodating regions 211 and 212 of the present invention may extend horizontally or vertically along the frame 2 to respectively provide the key caps 23 on the thin keyboard in the direction of the accommodating region, and the outer portion A support rib 213 is disposed between the two adjacent assembly areas 211 and 212. The support rib 213 can also be connected to one of the first connecting portions 221 of the inner frame 22. The range of motion of each of the keycaps 23 is limited to avoid the problem that each of the keycaps 23 is excessively offset due to improper force applied by the user. Referring to FIG. 8 , in an embodiment, the width of the inner frame 22 at the first connecting portion 221 is the connection between the first connecting portion 221 and the outer frame 21 toward the support. The direction of the portion 223 is gradually increased, and the width of each of the second connecting portions 222 is tapered by the connection between the second connecting portion 222 and the supporting portion 223 toward the connection with the key cap 23, thereby increasing the inner portion The structural strength of the entire frame 22.

Further, as described in the above embodiment, it is understood that the keycap 23 of the present invention forms the displacement section 3 with respect to the circuit board 1 when the keycap 23 is not pressed. In an embodiment, the instruction of the present invention The triggering structure is provided with an elastic support body 4 for assisting the displacement of each of the keycaps 23 relative to the circuit board 1 at a position corresponding to the displacement section 3 of the circuit board 1. In an embodiment, the elastic support body 4 may be A reed or an elastic sponge. Moreover, each of the elastic supporting bodies 4 is respectively disposed corresponding to each of the triggering portions 11, and further has a pair of contact portions 41 of the triggering portion 11, the contact portion 41 is normally not in contact with the triggering portion 11, and the elastic portion is When the support body 4 is pressed and deformed by the correspondingly disposed keycap 23, the contact portion 41 contacts the trigger portion 11 to generate the keyboard command. In addition, referring to FIG. 9, in an embodiment, each of the triggering portions 11 on the circuit board 1 includes a main trigger switch 111 and a plurality of sub-trigger switches 112 electrically connected to each other, and corresponding to each of the triggers. The elastic support body 4 provided in the portion 11 has a plurality of contact portions 41, 42 corresponding to the main trigger switch 111 and the sub-trigger switch 112, respectively. Further, the trigger portion 41 of the present invention corresponding to the main trigger switch 111 can be designed to be longer than the other trigger portion 42 corresponding to each of the sub-trigger switches 112. Thereby, it is possible to prevent the user from applying a force, and the key cap 23 is displaced in the displacement direction, and the problem of the keyboard command portion 11 cannot be surely triggered.

In summary, 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 key caps, wherein the outer frame body has a plurality of accommodating regions, and each of the key caps is respectively disposed in one of the accommodating portions a region, wherein the outer frame and the keycap are connected by the inner frame, each inner frame having at least two first connecting portions connecting the outer frame and at least two second connecting portions connecting the key caps, And providing a support portion between the first connecting portion and the second connecting portion to generate a deformation to provide a displacement of the key cap, the supporting portion having a bending point, and the height of the supporting portion at the second connecting portion> a first connecting portion, and the supporting portion is at the height of the bending point ≦ the first connecting portion. Thereby, the keycap linkage included in the conventional keyboard structure is omitted, so that the overall thickness of the keyboard structure can be more specifically lightened and thinned, and is no longer limited by the height of the keycap linkage.

The present invention has been described in detail above, but the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention. That is, the equivalent changes and modifications made by the scope of the present application should remain within the scope of the patent of the present invention.

2‧‧‧Frame

21‧‧‧Outer frame

211‧‧‧ accommodating area

22‧‧‧ inner frame

221‧‧‧First Connection

222‧‧‧Second connection

223‧‧‧Support

224‧‧‧ bend points

225‧‧‧First connection segment

226‧‧‧Second connection

23‧‧‧Key Cap

Claims (18)

An instruction triggering structure for a thin keyboard, comprising: a circuit board having a plurality of trigger portions respectively received by contact to generate a keyboard command; and a frame stacked on the circuit board and integrally formed with an outer frame body and a plurality of a frame body and a plurality of key caps, wherein the outer frame body has a plurality of accommodating regions corresponding to each of the triggering portions, and each of the key caps respectively corresponds to one of the triggering portions disposed in the accommodating region, and The frame body and the key cap are connected by the inner frame body, wherein each of the inner frame bodies has at least two first connecting portions connecting the outer frame body and at least two second connecting portions connecting the key caps, and each A supporting portion is formed between the first connecting portion and each of the second connecting portions to generate a deformation elastic force to form a displacement of the key cap to the trigger portion, the supporting portion is provided with a bending point, and the bending is defined The first connecting portion is a first connecting portion, and the bending point to the second connecting portion is a second connecting portion; wherein the height of the second connecting portion in the receiving area is > first a connecting portion, and the height of the bending point is First connection. The instruction triggering structure of the thin keyboard according to claim 1, wherein the accommodating regions are extended horizontally or vertically along the frame, so that the key caps are arranged in the direction of the accommodating region, and the frame is in the second There is a support rib between adjacent assembly areas. The command triggering structure of the thin keyboard according to claim 1 or 2, wherein the width of the first connecting portion is gradually increased from the connection between the first connecting portion and the outer frame toward the supporting portion, each of the The width of the second connecting portion is tapered by the connection of the second connecting portion and the supporting portion toward the connection with the key cap. The command triggering structure of the thin keyboard according to claim 1, wherein each of the keycaps and the circuit board has a displacement interval, and the displacement interval is provided with an elastic support for assisting displacement of the keycap relative to the circuit board. body. The instruction triggering structure of the thin keyboard according to claim 4, wherein each of the triggering portions includes a main trigger switch electrically connected to each other and a plurality of sub-trigger switches, and each of the elastic support bodies has a plurality of corresponding mains The trigger switch and the contact portion of the sub-trigger switch. The instruction triggering structure of the thin keyboard according to claim 1, wherein the second connecting segment is a curved surface. An instruction triggering structure for a thin keyboard, comprising: a circuit board having a plurality of trigger portions respectively received by contact to generate a keyboard command; and a frame stacked on the circuit board and integrally formed with an outer frame body and a plurality of a frame body and a plurality of key caps, wherein the outer frame body has a plurality of accommodating regions corresponding to each of the triggering portions, and each of the key caps respectively corresponds to one of the triggering portions disposed in the accommodating region, and The frame body and the key cap are connected by the inner frame body, wherein each of the inner frame bodies has at least two first connecting portions connecting the outer frame body and at least two second connecting portions connecting the key caps, and each A supporting portion is formed between the first connecting portion and each of the second connecting portions to generate a deformation elastic force to form a displacement of the key cap to the trigger portion, the supporting portion is provided with a bending point, and the bending is defined The first connecting portion is a first connecting portion, and the bending point to the second connecting portion is a second connecting portion; wherein the second connecting portion is at a height of the receiving portion Connection portion, and the height of the bending point < a first connecting portion and the second connecting portion. The instruction triggering structure of the thin keyboard according to claim 7, wherein the accommodating regions are extended horizontally or vertically along the frame, so that the key caps are arranged in the direction of the accommodating region, and the frame is in the second There is a support rib between adjacent assembly areas. The command triggering structure of the thin keyboard according to claim 7 or 8, wherein the width of the first connecting portion is gradually increased from the connection between the first connecting portion and the outer frame toward the supporting portion, each of the The width of the second connecting portion is tapered by the connection of the second connecting portion and the supporting portion toward the connection with the key cap. The command triggering structure of the thin keyboard according to claim 7, wherein each of the keycaps and the circuit board has a displacement interval, and the displacement interval is provided with an elastic support for assisting displacement of the keycap relative to the circuit board. body. The instruction triggering structure of the thin keyboard of claim 10, wherein each of the triggering portions includes a main trigger switch and a plurality of sub-trigger switches electrically connected to each other, and each of the elastic support bodies has a plurality of corresponding mains The trigger switch and the contact portion of the sub-trigger switch. The instruction triggering structure of the thin keyboard according to claim 7, wherein the second connecting segment is a curved surface. An instruction triggering structure for a thin keyboard, comprising: a circuit board having a plurality of trigger portions respectively received by contact to generate a keyboard command; and a frame stacked on the circuit board and integrally formed with an outer frame body and a plurality of a frame body and a plurality of key caps, wherein the outer frame body has a plurality of accommodating regions corresponding to each of the triggering portions, and each of the key caps respectively corresponds to one of the triggering portions disposed in the accommodating region, and The frame and the key cap are the inner frame Connecting, wherein each of the inner frames has at least two first connecting portions connecting the outer frame and at least two second connecting portions connecting the key caps, and each of the first connecting portions and each of the second connecting portions A supporting portion is formed between the connecting portions to generate a deformation elastic force to form a displacement of the key cap to the trigger portion, the supporting portion is provided with a bending point, and the bending point is defined to the first connecting portion as a first a connecting portion, the bending point to the second connecting portion is a second connecting portion; wherein the height of the inner frame in the accommodating portion is sequentially changed to the second connecting portion ≧ the bending point > The first connecting portion. The instruction triggering structure of the thin keyboard according to claim 13, wherein the accommodating regions are extended horizontally or vertically along the frame, so that the key caps are arranged in the direction of the accommodating region, and the frame is in the second There is a support rib between adjacent assembly areas. The command triggering structure of the thin keyboard according to claim 13 or 14, wherein the width of the first connecting portion is gradually increased from the connection between the first connecting portion and the outer frame toward the supporting portion, each of the The width of the second connecting portion is tapered by the connection of the second connecting portion and the supporting portion toward the connection with the key cap. The command triggering structure of the thin keyboard according to claim 13, wherein each of the keycaps and the circuit board has a displacement interval, and the displacement interval is provided with an elastic support for assisting displacement of the keycap relative to the circuit board. body. The instruction triggering structure of the thin keyboard according to claim 16, wherein each of the triggering portions includes a main trigger switch electrically connected to each other and a plurality of sub trigger switches, and each of the elastic support bodies has a plurality of corresponding mains The trigger switch and the contact portion of the sub-trigger switch. The instruction triggering structure of the thin keyboard according to claim 13, wherein the second connecting segment is a curved surface.