TW202004804A - Key structure - Google Patents

Abstract

A key structure having an abutment block and an elastic body is provided. The abutment block is disposed on the keycap or the scissors structure, and can move along with the movement of the keycap to contact with the elastic body to generate a click sound or a tactile feedback. Therefore, the key structure of the present invention can be applied to a non-mechanical keyboard without a mechanical axis switch, so that the non-mechanical keyboard can provide a click sound or a tactile feedback similar to a keyboard with the mechanical axis switch when operating, resulting in the non-mechanical keyboard allows the user to experience the operating experience of a keyboard with a mechanical axis switch.

Description

Key structure

The present invention relates to a key structure. More specifically, it is a key structure that can emit sound or tactile feel during pressing.

The keyboard is a main tool for inputting commands into the computer, and is widely used by computer users. The keyboard usually includes a keyboard with a key cap and a switch, which is an indispensable accessory for computer use. Therefore, users have stricter requirements for the functions of the keyboard. In addition to being able to provide command input, current keyboards must also provide feedback on the operation of the keyboard, such as pressing feel and pressing sound, in order to meet the various requirements of the keyboard, and therefore have a mechanical keyboard design. However, the mechanical keyboard has a mechanical axis switch (for example: Cherry mechanical axis switch), which can be used to provide tactile feedback and click sound of the feedback press. The mechanical axis switch has a certain height and is not conducive to the thinning of the keyboard Application, and the mechanical keyboard needs to be equipped with at least more than 80 mechanical shaft switches, which greatly increases the production cost of the keyboard.

In this regard, a key structure of a non-mechanical keyboard is proposed to replace the key shaft of the mechanical keyboard. The key structure is mainly provided with an upward recovery force source such as a rubber dome (Rubber Dome) under the key cap. Scissor foot structure, through which the key cap moves according to a predetermined stroke, and provides an elastic restoring force to the pressed key cap by the upward recovery force source, so that the key cap can return to the position before pressing, due to the upward recovery The force source and scissor structure do not need to occupy too much volume, so this key structure can be used as a thin keyboard. However, the key structure of the non-mechanical keyboard has the following problems: (1 During operation, it is limited by the structural design and cannot feedback the pressing sound; (2) During operation, the rubber dome body collapses to provide a collapse effect feel (collapse) Because the rubber dome system is an elastomer, the collapse effect provided by the soft feel is soft and gentle without a large change in resistance. The mechanical shaft switch of the mechanical keyboard cannot provide a clear paragraph feel of feedback pressing. Therefore, Compared with the key structure of the non-mechanical keyboard, the key structure of the mechanical keyboard has a clearer tactile feel during operation.

Therefore, how to enable the key structure of the non-mechanical keys to provide a pressing sound similar to that when the mechanical shaft switch is pressed or a more clear and clear tactile feedback during operation is the main technical problem solved by the present invention.

In view of the above-mentioned shortcomings of the prior art, the present invention provides a key structure including: a circuit board having an electrical signal contact; and a backplane module that supports the circuit board 11 A key cap, the key cap is disposed above the electrical signal contact 111; a scissor structure, the scissor structure guides the key cap to move between a high position and a low position, when the key cap When moved to the low position, the keycap can trigger the electrical signal contact to turn on; an upward recovery force source, the upward recovery force source is disposed between the keycap and the circuit board, the upward recovery force source can be The keycap exerts an upward restoring force to move the keycap towards the high position; an abutment block, the abutment block is provided on the keycap or the scissor leg structure; and an elastic body, the elastic system is provided On the bottom plate module; wherein, when the keycap moves from the high position toward the low position, the abutment block can move along a movement path of the abutment block with the movement of the keycap, the elasticity The system is located in the movement path of the abutment block, so that the abutment block makes a noise when it moves against the elastic body.

In addition, the present invention also provides a button structure, which includes: a circuit board having an electrical signal contact; a backplane module that supports the circuit board; a keycap, which The keycap is arranged above the electrical signal contact; a scissor structure, which guides the keycap to move between a high position and a low position, when the keycap moves to the low position, The keycap can trigger the electrical signal contact to be turned on; an upward recovery force source is provided between the keycap and the circuit board, and the upward recovery force source can apply an upward recovery to the keycap Force to move the keycap toward the high position; an abutment block, the abutment block is disposed on the keycap or the scissor structure, the abutment block has a first abutment surface and a second abutment surface , When the keycap moves from the high position toward the low position, the abutment block can move along a movement path of the abutment block as the keycap moves; and an elastic body, the elastic system is disposed at On the bottom plate module, the elastic system is located in the movement path of the contact block; wherein, when the keycap moves from the high position toward the low position, the elastic body will move along the first contact surface or the second contact surface The surface moves, wherein the first contact surface can move with the movement of the keycap to guide the deformation of the elastic body, so that the elastic body provides an upward pushing force to the abutment block, at this time, the upward pushing force The upward recovery force is coordinated to increase the pressing force required to move the keycap from the high position toward the low position; and the second abutment surface can move with the movement of the keycap to guide the deformation of the elastic body, so that The elastic body releases the upward pushing force on the abutment block, and reduces the pressing force required to move the keycap from the high position toward the low position.

Compared with the prior art, the key structure of the present invention has an elastic body and an abutment block. The elastic system is provided on the bottom plate module. The abutment block is provided on the keycap or scissor structure, which can move as the keycap moves. In order to resist the elastic body to make a sound or produce a tactile feel, it can be applied to a non-mechanical keyboard that is not equipped with a mechanical shaft switch, so that the non-mechanical press keyboard can provide a similar pressing sound when the mechanical shaft switch is pressed during operation (click sound) or tactile feedback, so that a lower-cost non-mechanical keyboard can also allow users to experience an operating experience similar to a more expensive keyboard with a mechanical shaft switch to meet the user's functional requirements for the keyboard. In addition, in the present invention, the elastic body may be selected from the elastic structures of torsion springs, cantilever springs, plate springs, and air chamber cavities to provide proper pressing sound and pressing feel.

The following content will be combined with the drawings to illustrate the technical content of the present invention through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied by other different specific embodiments. Various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the spirit of the present invention. In particular, the proportional relationships and relative positions of the various elements in the drawings are for exemplary purposes only, and do not represent the actual status of the implementation of the present invention.

In addition, it should be noted that, in order to make the disclosure more concise and easy to understand, the same or similarly functional elements in the following embodiments will be described using the same symbols, and the description of the same or equivalent features will be omitted.

The present invention is mainly to provide a variety of key structures that can be used for a non-mechanical keyboard, so that the non-mechanical keyboard can feedback the feeling and the sound of the pressing paragraph during operation to meet the user's functional requirements for the keyboard.

First embodiment:

Please refer to FIG. 1 to FIG. 3-4 together. As shown in the figures referred to in the left column, the key structure 1 of the first embodiment includes a circuit board 11, a bottom plate module 12, a key cap 13, and scissors legs Structure 14, upward recovery force source 15, abutment block 161 and elastic body 162. The circuit board 11 has electrical signal contacts 111 for providing trigger signals. The keycap 13 is disposed above the electrical signal contact 111 of the circuit board 11 and is used to provide a pressure to trigger the electrical signal contact 111 of the circuit board 11.

The scissor leg structure 14 guides the keycap 13 to move between the high position HP and the low position LP. When the keycap 13 moves to the low position LP, the keycap 13 can trigger the electrical signal contact 111 of the circuit board 11 to connect the electrical signal Point 111 is in a conducting state to complete the triggering of the key. The upward recovery force source 15 is disposed between the keycap 13 and the circuit board 11 and is used to apply an upward recovery force FR (for example: magnetic force or elastic force) to the keycap 13 to make the keycap 13 located at the low position LP Move towards the high position HP. More specifically, the upward recovery force source 15 is, for example, a magnetic body that can provide magnetic force (for example: a mutually exclusive magnet, or a attracting magnetic body with a connecting rod) or an elastic body that can provide elastic force (for example: a spring, or Rubber dome).

As shown in FIG. 1, the scissor leg structure 14 has an inner arm 141 and an outer arm 142 that are pivotally connected to each other and can rotate with each other. The inner arm 141 has an inner arm opening 1411. The abutment block 161 is integrally formed in the keycap 13 and extends downward from the bottom surface of the keycap 13 and extends into the inner arm opening 1411. When the keycap 13 moves from the high position HP toward the low position LP, the abutment block 161 can move along the abutment block movement path as the keycap 13 moves. The abutment block 161 has a first abutment surface 1611, a second abutment surface 1612, and an abutment intersection point 1613. The abutment intersection point 1613 is located at the boundary between the first abutment surface 1611 and the second abutment surface 1612. The elastic body 162 is a cantilever elastic piece extending along the moving path of the contact block and has an elastic contact portion 1623.

In the first embodiment, the elastic abutment portion 1623 protrudes from the side of the body of the cantilever spring that is close to the abutment block 161, so that the abutment block 161 can abut the elastic abutment portion 1623 during the movement. The abutment block 161 and the projection of the elastic body 162 along the movement path of the abutment block in the inner arm opening 1411 partially overlap, that is, the elastic body 162 is located in the abutment block movement path of the abutment block 161.

In the first embodiment, when the keycap 13 is pressed and moves from the high position HP toward the low position LP, it may include at least the following two stages of the moving process:

(a) As shown in FIGS. 3-1 to 3-3, the pressing of the key cap 13 causes the abutment block 161 to abut the elastic body 162, so that the abutment block 161 can push against the elastic pushing portion 1623 to make the elastic The body 162 is elastically deformed by force, so that the elastic abutment portion 1623 moves along the first abutment surface 1611 to reach the abutment junction 1613, and even causes the elastic abutment portion 1623 to collide with the first abutment surface 1611 during the movement process to make a sound or The connecting block 161 provides an upward pushing force FU. At this time, the upward pushing force FU will cooperate with the upward restoring force FR of the upward restoring force source 15 to increase the pressing force required to move the keycap 13 from the high position HP toward the low position LP.

(b) As shown in FIGS. 3-4, when the keycap 13 is pressed, the abutment block 161 abuts the elastic body 162, so that the abutment block 161 can push the elastic abutment portion 1623 to deform the elastic body 162 , So that the elastic abutment portion 1623 moves along the second abutment surface 1612 through the abutment junction 1613, and even makes the elastic abutment portion 1623 collide with the second abutment surface 1612 during the movement to make a sound or provide downward contact to the connecting block 161 The thrust FD, at this time, the elastic body 162 will release the upward thrust FU provided to the abutment block 161, and even, the downward thrust FD will cancel part of the upward restoring force FR, and reduce the keycap 13 from the high position HP toward the low position LP The pressing force required to move.

In this way, the user can feel the pressing sound of the feedback pressing during the above two-stage moving process, and feel the pressing force instantly changes from large to small when the elastic abutment portion 1623 passes the abutting junction 1613, resulting in a feeling of pressing a paragraph Therefore, during operation, the key structure of the first embodiment can provide a pressing sound similar to a pressing sound when a mechanical shaft switch is pressed or a more clearly defined tactile pressing paragraph feel.

Furthermore, it should be noted that the bottom plate module 12 provides support to the circuit board 11. As shown in FIGS. 1 to 2, the bottom plate module 12 has an upper support plate 121, a lower support plate 122, an engaging structure 123 and elasticity体 establishment机构124. The upper support plate 121 is disposed above the circuit board 11 to provide support, and the lower support plate 122 is disposed below the circuit board 11 to provide support. The engaging structure 123 is used to engage the lower end of the scissor leg structure 14 and provide positioning for the scissor leg structure 14. The elastic body setting mechanism 124 is used to install the elastic body 162 on the bottom plate module 12. In the present invention, optionally, the upper support plate 121 and the lower support plate 122 can be respectively folded out of the engaging structure 123 and the elastic body setting mechanism 124 by punching to avoid the formation of the engaging structure 125 and the elastic body setting mechanism 124 The damage caused is concentrated on one of the upper support plate 121 and the lower support plate 122, so that both the upper support plate 121 and the lower support plate 122 can retain enough plate material to provide support for the circuit board 11. However, not limited to this, if the formation of the engaging structure 123 and the elastic body setting mechanism 124 causes little damage to the upper support plate 121 or the lower supporting plate 122, even if the engaging structure 125 and the elastic body setting mechanism 124 are concentrated in A single support plate does not make the plate of the support plate enough to support the circuit board 11, so the bottom plate module 12 can also be provided with only one of the upper support plate 121 and the lower support plate 122 to correct the circuit The plate 11 provides appropriate strength support.

Second embodiment:

Please refer to FIG. 4 to FIG. 6-2-2 together. As shown in the figures referred to in the left column, the biggest difference between the second embodiment and the first embodiment is that the key structure 1 of the second embodiment also The sound generating base 163 includes a sound generating base 1633, an accommodating space 1631, a sliding surface 1632, and a restricting portion 1634. In the second embodiment, the sliding surface 1632 is located on a surface of the sound base 1633, and the restricting portion 1634 is disposed on the sound base 1633 to limit the degree of elastic deformation of the elastic body 162. The elastic body 162 is a torsion spring embedded in the sound base 1633. The torsion spring has a sliding portion 1621, an elastic portion 1622 and an elastic abutment portion 1623. The elastic portion 1622 is accommodated in the accommodating space 1631 of the sound base 163 for providing elastic restoring force after elastic deformation. The sliding portion 1621 is located at the rear end of the elastic body 162 and extends to the lower surface of the restricting portion 1634 and Between sliding surfaces 1633.

In the second embodiment, when the keycap 13 is pressed and moves from the high position HP toward the low position LP, it may include at least the following two stages of the moving process:

(a) As shown in FIGS. 6-1-1 to 6-2-2, the pressing of the keycap 13 causes the abutment block 161 to abut against the elastic body 162, so that the abutment block 161 can push against the elastic abutment portion 1623 The elastic portion 1622 is elastically deformed to move the elastic abutment portion 1623 to the right along the first abutment surface 1611 to reach the abutment junction 1613, so that the sliding portion 1621 contacts the sliding surface 1632 and slides along the sliding surface 1632, or even causes the sliding The portion 1621 collides with the first abutting surface 1611 during sliding on the sliding surface 1632 to make a sound or provide an upward thrust FU to the connecting piece 161. At this time, the upward thrust FU will be equal to the upward restoration force FR of the upward restoration force source 15 In cooperation, the pressing force required to move the keycap 13 from the high position HP toward the low position LP is increased. It should also be noted that when the elastic abutment portion 1623 moves to the right along the first abutment surface 1611 toward the abutment junction 1613, the elastic abutment portion 1623 will gradually leave the lower surface of the restriction portion 1634, resulting in the restriction portion 1634 being unable to respond to the elasticity The elastic deformation of the body 162 is restricted.

(b) As shown in FIGS. 6-3-1 to 6-4-2, the pressing of the keycap 13 causes the abutment block 161 to abut against the elastic body 162, so that the abutment block 161 can push against the elastic abutment portion 1623 The elastic portion 1622 is elastically deformed, so that the elastic abutment portion 1623 moves from the abutment junction 1613 to the left along the second abutment surface 1612, or even causes the elastic abutment portion 1623 to collide with the second abutment surface 1612 or bring the elastic abutment portion 1623 close to Or the lower surface of the collision restricting portion 1634 to make a sound or provide downward thrust FD to the contact block 161, at this time, the elastic body 162 will release the upward thrust FU to the abutment block 161, and even, the downward thrust FD will resist The pin restores part of the upward force FR and reduces the pressing force required to move the keycap 13 from the high position HP toward the low position LP.

In this way, the user can feel the pressing sound of the feedback pressing during the above two-stage moving process, and feel the pressing force instantly changes from large to small when the elastic abutment portion 1623 passes the abutting junction 1613, resulting in a feeling of pressing a paragraph Therefore, the key structure of the second embodiment can provide a pressing sound similar to a pressing sound when a mechanical shaft switch is pressed or a more clearly defined tactile pressing feel during operation.

Furthermore, it should be noted that, when the keycap 13 is released from the pressing, the elastic portion 1622 can provide an elastic restoring force to the sliding portion 1621, so that the sliding portion 1621 sequentially follows the second contact surface 1612 and the contact point 1613 It returns to the initial position with the first contact surface 1611 to wait for the next contact block 161 to push against the elastic contact portion 1623, that is, to wait for the next pressing of the keycap 13.

Third embodiment:

Please refer to FIGS. 7 to 10 together. As shown in the figures referred to in the left column, the biggest difference between the third embodiment and the second embodiment is that the contact block 161 of the third embodiment is integrally formed in The inner arm 141 is not provided on the keycap 13. In this embodiment, the abutment block 161 extends from the side surface of the inner arm 141 into the inner arm opening 1411, and the abutment block 161 and the elastic body 162 move along the abutment block in the inner arm opening 1411 The projection systems of the paths partially overlap, so that the abutment block 161 can contact the elastic body 162 during the movement.

When the keycap 13 moves from the high position HP toward the low position LP, the abutment block 161 can move along the movement path of the abutment block on the inner arm 141 with the movement of the keycap 13, and the elastic body 162 is located In the moving path of the abutment block, the abutment block 161 can abut the elastic abutment portion 1623 of the elastic body 162 as shown in FIG. 10 during movement, so that the sliding portion 1621 contacts the sliding surface 1632 and slides along the sliding surface 1632 The sound or the pressing force of the keycap 13 changes from large to small instantaneously when the elastic abutment portion 1623 passes through the abutment junction 1613, resulting in a feeling of pressing a paragraph. The manner of making a sound or generating a feeling of paragraph pressing is substantially the same as that of the second embodiment, and will not be repeated here.

Fourth embodiment:

Please refer to FIGS. 11 to 14 together. As shown in the figures referenced in the left column, the biggest difference between the fourth embodiment and the third embodiment is that the elastic body 162 of the fourth embodiment is a plate spring The plate springs extend in a direction substantially orthogonal to the moving path of the contact block, and the elastic contact portion 1623 is embossed on the side of the plate springs close to the contact block 161. When the keycap 13 moves from the high position HP toward the low position LP, the abutment block 161 can move along the movement path of the abutment block abutment block on the inner arm 141 with the movement of the keycap 13 to make the abutment The first abutment surface 1611 of the block 161 can abut against the elastic abutment portion 1623, so that the plate spring can be elastically deformed by the abutment of the abutment block 161, so as to make a sound or a feeling of pressing between the abutment block 161 and the elastic body 162 .

Fifth embodiment:

Please refer to FIG. 15 to FIG. 18 together. As shown in the figures referenced in the left column, the biggest difference between the fifth embodiment and the fourth embodiment is that the elastic body 162 of the fourth embodiment is an air chamber. The gas chamber cavity system has, for example, a speaker structure 1625 having a hole-like structure, and in the initial state, the sound generating gas G is contained inside the gas chamber cavity. The elastic contact portion 1623 is embossed on the side of the air chamber cavity close to the contact block 161. When the keycap 13 moves from the high position HP toward the low position LP, the first contact surface 1611 of the abutment block 161 can abut against the elastic abutment portion 1623 of the elastic body 162, so that the air chamber cavity is elastic by the abutment block 161 Deformation causes the audible gas G to gradually flow out of the air chamber cavity through the loudspeaker structure 1625 to make a sound. As shown in FIG. 16-1, when the keycap 13 moves from the low position LP toward the high position HP, the first abutment surface 1611 is separated from the elastic abutment portion 1623, so that the air chamber cavity can not be abutted by the abutment block 161, The audible gas G is contained in the initial state gradually to wait for the next time the abutment block 161 pushes against the elastic abutment portion 1623, that is, to wait for the next pressing of the keycap 13.

The above-mentioned embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone who is familiar with this technology can modify and change the above embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the rights of the present invention should be as listed in the scope of the patent application of the present invention.

1‧‧‧ Button structure 11‧‧‧ Circuit board 111‧‧‧Telephone signal contact 12‧‧‧Bottom plate module 121‧‧‧Upper support plate 122‧‧‧Lower support plate 123‧‧‧Snap-in structure 124‧ ‧‧Elastomer setting mechanism 13‧‧‧Key cap 14‧‧‧Scissor foot structure 141‧‧‧Inner arm 1411‧‧‧Inner arm opening 142‧‧‧Outer arm 15‧‧‧Upward recovery force source 161 ‧‧‧ abutment block 1611‧‧‧first abutment surface 1612‧‧‧second abutment surface 1613‧‧‧abutment junction 162‧‧‧elastic body 1621‧‧‧sliding part 1622‧‧‧elastic part 1623‧‧ ‧Elastic collision part 1624‧‧‧Speaker structure 163‧‧‧Speaker seat 1631‧‧‧Accommodation space 1632‧‧‧Sliding surface 1633‧‧‧Speaker seat body 1634‧‧‧Restriction part FU‧‧‧Upward thrust FD ‧‧‧ Downward thrust FR‧‧‧Upward recovery force HP‧‧‧High position LP‧‧‧Low position

FIG. 1 is an exploded view of a partial structure of the first embodiment of the key structure of the present invention from the perspective of ㄧ.

Fig. 1-1 is an exploded view of the partial structure of the key structure shown in Fig. 1 from another perspective.

FIG. 2 is a schematic cross-sectional view of the keyboard structure shown in FIG. 1 after being assembled.

FIG. 3-1 is a schematic diagram of the first operating state of the keyboard structure shown in FIG. 2.

3-2 is a schematic diagram of the second operating state of the keyboard structure shown in FIG. 2.

3-3 is a schematic diagram of the third operating state of the keyboard structure shown in FIG. 2.

Fig. 3-4 is a schematic diagram of the fourth operating state of the keyboard structure shown in Fig. 2.

FIG. 4 is a partial structural exploded view of the second embodiment of the key structure of the present invention.

Fig. 4-1 is an exploded view of the partial structure of the key structure shown in Fig. 4 from the angle of view.

Figure 4-2 is a partial exploded view of the key structure shown in Figure 4 from another perspective.

FIG. 5 is a schematic cross-sectional view of the keyboard structure shown in FIG. 1 after being assembled.

Fig. 6-1-1 is a schematic diagram of the first operating state of the keyboard structure shown in Fig. 5.

Figure 6-1-2 is a perspective view of the keyboard structure shown in Figure 6-1-1.

Fig. 6-2-1 is a schematic diagram of the second state of the keyboard structure shown in Fig. 5.

Figure 6-2-2 is a perspective view of the keyboard structure shown in Figure 6-2-1.

Fig. 6-3-1 is a schematic diagram of the second state of the keyboard structure shown in Fig. 5.

Figure 6-3-2 is a perspective view of the keyboard structure shown in Figure 6-3-1.

Fig. 6-4-1 is a schematic diagram of the second state of the keyboard structure shown in Fig. 5.

Figure 6-4-2 is a perspective view of the keyboard structure shown in Figure 6-4-1.

FIG. 7 is an exploded view of the partial structure of the third embodiment of the key structure of the present invention in the first state.

FIG. 8 is a schematic cross-sectional view of the keyboard structure shown in FIG. 7 after being assembled.

FIG. 9 is an exploded view of the partial structure of the third embodiment of the key structure of the present invention in the second state.

FIG. 10 is a schematic cross-sectional view of the keyboard structure shown in FIG. 9 after being combined.

11 is an exploded view of a partial structure of the fourth embodiment of the key structure of the present invention in the first state.

FIG. 12 is a schematic cross-sectional view of the keyboard structure shown in FIG. 11 after being combined.

FIG. 13 is an exploded view of the partial structure of the fourth embodiment of the key structure of the present invention in the second state.

FIG. 14 is a schematic cross-sectional view of the keyboard structure shown in FIG. 13 after being combined.

15 is an exploded view of a partial structure of the fifth embodiment of the key structure of the present invention in the first state.

FIG. 16 is a schematic cross-sectional view of the keyboard structure shown in FIG. 15 after being combined.

Fig. 16-1 is an enlarged schematic view of a partial area of the keyboard structure shown in Fig. 16.

FIG. 17 is an exploded view of the partial structure of the fifth embodiment of the key structure of the present invention in the second state.

FIG. 18 is a schematic cross-sectional view of the keyboard structure shown in FIG. 17 after being combined.

18-1 is an enlarged schematic view of a partial area of the keyboard structure shown in FIG. 18.

1‧‧‧Key structure

12‧‧‧Bottom plate module

123‧‧‧Snap-in structure

124‧‧‧Elastomer setting mechanism

13‧‧‧key cap

14‧‧‧Scissor foot structure

141‧‧‧Inner arm

1411‧‧‧Inner arm opening

142‧‧‧Outer arm

15‧‧‧Recover the source of force upward

161‧‧‧ abutment block

162‧‧‧Elastomer

Claims (13)

A key structure includes: a circuit board having an electrical signal contact; a backplane module that provides support to the circuit board; and a keycap provided on the keycap Above the signal contact; a scissor structure that guides the keycap to move between a high position and a low position. When the keycap moves to the low position, the keycap can trigger the The electrical signal contact is turned on; an upward restoring force source is provided between the keycap and the circuit board. The upward restoring force source can apply an upward restoring force to the keycap to make the keycap Moving toward the high position; an abutment block, the abutment block is disposed on the keycap or the scissor leg structure; and an elastic body, the elastic system is disposed on the bottom plate module; wherein, when the keycap When moving from the high position toward the low position, the abutment block can move along a movement path of the abutment block along with the movement of the keycap, and the elastic system is located in the abutment block movement path so that the abutment The contact block makes a sound when it moves against the elastic body. The key structure as described in item 1 of the patent application scope, wherein the elastic system is a plate spring and has an elastic contact portion, the plate spring extends in a direction substantially orthogonal to the moving path of the abutment block The elastic contact portion is embossed on the side of the plate spring that is close to the contact block, so that the contact block can contact the elastic contact portion. The key structure as described in item 1 of the patent application scope, wherein the elastic system is an air chamber cavity and has an elastic abutment portion, the air chamber cavity system has a speaker structure, and the air chamber cavity is in an initial stage In the state, an audible gas is contained inside, and the elastic abutment portion is embossed on the side of the air chamber cavity close to the abutment block, so that the abutment block can abut the elastic abutment portion, when the key cap is When the position moves toward the low position, the air chamber cavity is elastically deformed by the abutment block, so that the audible gas gradually flows out of the air chamber cavity through the speaker structure to make a sound; when the key cap is formed by the When the low position moves toward the high position, the air chamber system gradually returns to the initial state. A key structure includes: a circuit board having an electrical signal contact; a backplane module that provides support to the circuit board; and a keycap provided on the keycap Above the signal contact; a scissor structure that guides the keycap to move between a high position and a low position. When the keycap moves to the low position, the keycap can trigger the The electrical signal contact is turned on; an upward restoring force source is provided between the keycap and the circuit board. The upward restoring force source can apply an upward restoring force to the keycap to make the keycap Moving towards the high position; a contact block, which is arranged on the keycap or the scissor structure, the contact block has a first contact surface and a second contact surface, when the keycap is When the high position moves toward the low position, the abutment block can move along a movement path of the abutment block with the movement of the keycap; and an elastic body, the elastic system is provided on the bottom plate module, The elastic system is located in the moving path of the abutment block; wherein, when the keycap moves from the high position toward the low position, the elastic body moves along the first contact surface or the second contact surface, wherein, The first contact surface can move along with the movement of the key cap to guide the deformation of the elastic body, so that the elastic body provides an upward pushing force to the abutment block. At this time, the upward pushing force will cooperate with the upward restoring force, and Increase the pressing force required for the keycap to move from the high position to the low position; and the second abutment surface can move with the movement of the keycap to guide the deformation of the elastic body, so that the elastic body releases the The abutment block provides the upward pushing force, and reduces the pressing force required to move the keycap from the high position toward the low position. The key structure described in item 4 of the patent application scope, wherein when the keycap moves from the high position toward the low position, the elastic body moves along the first contact surface or the second contact surface to make a sound , Or hit the first contact surface or the second contact surface to make a sound. The key structure as described in item 4 of the patent application scope, wherein when the second contact surface moves with the movement of the key cap, the elastic body will provide a downward pushing force to the abutment block. The downward pushing force cancels out part of the upward restoring force, and reduces the pressing force required for the keycap to move from the high position toward the low position; the elastic system has an elastic abutment portion, and the elastic abutment portion opposes the The contact block causes the elastic body to move against the first contact surface or the second contact surface; when the elastic body moves on the first contact surface, the elastic contact portion provides the upward direction to the contact block Thrust; when the elastic body moves on the second contact surface, the elastic contact portion provides the downward thrust to the connecting block. The key structure as described in item 6 of the patent application range, wherein the abutment block further has a collision junction point, the collision junction point is located at the junction between the first collision surface and the second collision surface, when the When the keycap moves from the high position toward the low position, the elastic body deforms elastically, so that the elastic abutment portion moves along the first abutment surface to reach the abutment junction point, so as to provide the upward thrust to the connecting block, Alternatively, the elastic abutment portion is moved along the second abutment surface from the abutment junction to provide the downward pushing force to the connecting block. The key structure as described in item 1 or 4 of the patent application scope, wherein the elastic system is a cantilever dome and has an elastic abutment portion, the cantilever dome is extended along the movement path of the abutment block, and the elastic abutment portion is The body protruding from the side of the cantilever dome is close to the side of the abutment block, so that the elastic abutment portion can abut the abutment block. The key structure as described in item 1 or 4 of the patent application scope, wherein the scissor leg structure includes an inner arm and an outer arm. The inner arm has an inner arm opening, the abutment block is integrally formed on the keycap, and extends downward from the bottom surface of the keycap, and the abutment block and the elastic body are along the opening of the inner arm The projection systems of the moving path of the abutment block partially overlap, so that the abutment block can touch the elastic body during the movement. The key structure as described in item 1 or 4 of the patent application scope, wherein the scissor leg structure includes an inner support arm and an outer support arm, the inner support arm and the outer support arm are pivotally connected to each other and can rotate with each other, the The inner arm has an inner arm opening, the abutment block is integrally formed with the inner arm, and extends from the side surface of the inner arm into the inner arm opening, and the abutment block and the elasticity The projections of the opening of the inner arm along the movement path of the contact block partially overlap, so that the contact block contacts the elastic body during the movement. The key structure 1 as described in item 1 or 4 of the patent application scope further includes a sound-producing seat, which has a sound-producing seat body, an accommodating space, a sliding surface and a restricting portion. The accommodating space is Located in the sound-producing base, the sliding surface is located on a surface of the sound-producing base, the restricting portion is provided on the sound-producing base to limit the elastic deformation of the elastic body, the elastic system is a torsion spring, the torsion spring It has a sliding part, an elastic part and an elastic abutment part. The elastic part is accommodated in the accommodating space. When the abutment block abuts the elastic body, the abutment block abuts the elastic abutment part The elastic portion is elastically deformed, so that the sliding portion slides into contact with the sliding surface to make a sound, or the elastic abutting portion hits the restricting portion to make a sound. The key structure 1 as described in item 1 or 4 of the patent application scope, wherein the bottom plate module includes an upper support plate and a lower support plate, the upper support plate is disposed above the circuit board, and the lower support The board is disposed under the circuit board; the scissor structure is disposed between the upper support plate, the lower support plate, or both the upper support plate and the lower support plate; the elastic system is provided on the upper support Plate, the lower support plate, or between the upper support plate and the lower support plate. The key structure as described in item 1 or 4 of the patent application range, wherein the upward recovery force source is a magnetic body or an elastic body.

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