TW202004801A - Resilient contact and input device - Google Patents

Abstract

A resilient contact and an input device, wherein the resilient contact includes a pressing portion, a supporting portion, and a resilient arm portion. The supporting portion is configured to support the pressing portion on a circuit board. The supporting portion includes a support plate portion and a support arm portion. The support plate portion is placed on the circuit board, and the support arm portion extends from the support plate portion toward the pressing portion. The resilient arm portion is connected between the pressing portion and the supporting portion. The resilient arm portion bulges from the inner side of the supporting portion and extends to the periphery of the pressing portion. The connection portion between the resilient arm portion and the supporting portion constitutes a first contact portion. The resilient arm portion includes a first resilient portion, a resilient bending portion, and a second resilient portion. When the pressing portion is pressed by an external force, the resilient bending portion of the resilient arm portion is deformed, and the resilient arm portion drives the supporting portion downward to make the first contact portion to contact the circuit board.

Description

Elastic contact and input device

The invention relates to a contact piece and an input device, and particularly relates to an elastic contact piece and an input device using the elastic contact piece.

The keyboard is an important input device for computers and various automation devices. Generally speaking, keyboards include membrane keyboards and mechanical keyboards. Among them, membrane keyboards are more and more popular because of their low cost and simple production. Membrane keyboard has also become the mainstream in the current keyboard market.

However, the existing membrane keyboard will have a clear paragraph feel when pressed, and the trigger stroke is longer, and it cannot be combined with a mechanical switch to achieve a fast-responsive switch structure. Therefore, there is much room for improvement in the trigger stroke, strength and feel of the membrane keyboard.

The invention provides an elastic contact piece with a short trigger stroke.

The invention also provides an input device with a short trigger stroke.

Other objects and advantages of the present invention can be further understood from the technical features disclosed by the present invention.

In order to achieve one, part, or all of the foregoing or other objectives, an embodiment of the present invention provides an elastic contact, which includes: a pressing portion, a supporting portion, and an elastic wall portion. The supporting portion is used to support the pressing portion on a circuit board. The supporting portion includes a supporting plate portion and a supporting wall portion. The supporting board part is placed on the circuit board. The support wall portion extends from the support plate portion toward the pressing portion. The elastic wall portion is connected between the pressing portion and the support portion. The elastic wall portion swells from the inner side of the support portion and extends to the periphery of the pressing portion. The connection between the elastic wall portion and the support portion constitutes a first contact portion, wherein the elastic wall portion includes a first elastic portion, an elastic turning portion and a second elastic portion. The first elastic portion is connected between the supporting portion and the elastic turning portion. The elastic turning portion is connected between the first elastic portion and the second elastic portion. The second elastic portion is connected between the elastic turning portion and the pressing portion. Wherein, when the pressing portion is not pressed by an external force, both the support wall portion and the first contact portion are kept separated from the circuit board. When the pressing portion is pressed by an external force, the elastic turning portion of the elastic wall portion deforms, and the elastic wall portion drives the supporting portion to move downward so that the first contact portion touches the circuit board.

In order to achieve one, part, or all of the above or other objectives, an embodiment of the present invention provides an input device, including: a circuit board, a mechanical switch, and an elastic contact. The mechanical switch is arranged above the circuit board. The mechanical switch includes a housing, a trigger shaft and an upward force-returning element. The housing has an upper through hole and a lower through hole, the upper through hole is located at the top of the housing, and the lower through hole is located at the bottom of the housing. The trigger shaft is arranged in the housing. The trigger shaft can move up and down relative to the housing between a higher position and a lower position. The top of the trigger shaft can pass through the upper through hole and extend upwards out of the housing, and the bottom end of the trigger shaft can pass through the lower through hole and extend downwards out of the housing. The upward restoring force element is arranged in the housing. When the top of the trigger shaft is not pressed by a trigger force, the upward recovery force element moves the trigger shaft upward to a higher position. The elastic contact is connected between the mechanical switch and the circuit board. The elastic contact piece includes a pressing part, a supporting part and an elastic wall part. The support portion is used to support the pressing portion on the circuit board. The supporting portion includes a supporting plate portion and a supporting wall portion. The supporting plate portion is placed on the circuit board, and the supporting wall portion extends from the supporting plate portion toward the pressing portion. The elastic wall portion is connected between the pressing portion and the support portion. The elastic wall portion swells from the inner side of the support portion and extends to the periphery of the pressing portion. The connection between the elastic wall portion and the support portion constitutes a first contact portion, wherein the elastic wall portion includes a first elastic portion, an elastic turning portion and a second elastic portion. The first elastic portion is connected between the supporting portion and the elastic turning portion. The elastic turning portion is connected between the first elastic portion and the second elastic portion. The second elastic portion is connected between the elastic turning portion and the pressing portion. Wherein, when the top of the trigger shaft is not pressed by the trigger force, both the support wall portion and the first contact portion remain separated from the circuit board. Wherein, when the top of the trigger shaft is pressed by the trigger force, the bottom end of the trigger shaft moves downward and extends out of the housing to abut to move the pressing portion downward, thereby deforming the elastic turning portion of the elastic wall portion. The elastic wall portion drives the support portion to move downward, so that the first contact portion touches the circuit board.

The elastic contact piece and the input device using the elastic contact piece according to the embodiments of the present invention are provided with a pressing part, a supporting part and an elastic wall part on the elastic contact part, and the connection between the elastic wall part and the supporting part constitutes a first contact part . When the elastic contact piece is pressed by an external force, the elastic turning portion of the elastic wall portion deforms, and the elastic wall portion drives the support portion to move downward so that the first contact portion touches the circuit board. Therefore, the trigger stroke of the elastic contact piece and the input device when pressed is short, and a fast-responsive switch structure can be realized.

In order to make the above and other objects, features, and advantages of the present invention more comprehensible, preferred embodiments are described below in conjunction with the accompanying drawings, which are described in detail below.

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description with reference to one of the preferred embodiments of the drawings. The direction words mentioned in the following embodiments, for example: up, down, left, right, front or back, etc., are only for the directions referring to the attached drawings. Therefore, the directional terminology is used to illustrate rather than limit the invention.

FIG. 1 is a schematic cross-sectional view of an input device K according to an embodiment of the invention. Referring to FIG. 1, the input device K includes a circuit board 1, a mechanical switch 300 and an elastic contact 100. The mechanical switch 300 is provided above the circuit board 1. The mechanical switch 300 includes a housing 3, a trigger shaft 5 and an upward restoring force element 7. The trigger shaft 5 can move up and down relative to the housing 3. The elastic contact 100 is connected between the mechanical switch 300 and the circuit board 1. The elastic contact includes a pressing part 110, a supporting part 130 and an elastic wall part 150. The connection between the elastic wall portion 150 and the support portion 130 constitutes the first contact portion 157. When the top 51 of the trigger shaft 5 is not pressed by the trigger force, the first contact portion 157 of the elastic contact 100 remains separated from the circuit board 1. When the top 51 of the trigger shaft 5 is pressed by a triggering force (not shown in FIG. 1 ), the bottom end portion 53 of the trigger shaft 5 moves downward and abuts to move the pressing portion 110 of the elastic contact 100 downward, thereby making the elastic The wall portion 150 is deformed. The elastic wall portion 150 drives the supporting portion 130 to move downward, so that the first contact portion 157 touches the circuit board 1 to achieve the purpose of pressing and triggering the input device K. In this embodiment, by providing the elastic contact 100 including the support portion 130 and the elastic wall portion 150, the first contact portion 157 is provided between the support portion 130 and the elastic wall portion 150, so that the trigger stroke of the input device K when pressed is short, A fast-responsive switch structure can be realized. The specific operation details will be described in detail below.

Please refer to FIG. 2 and FIG. 3 at the same time. FIG. 2 is a schematic top view of the input device K according to an embodiment of the present invention. FIG. 3 is an exploded schematic view of the input device K according to an embodiment of the present invention. In detail, the housing 3 has an upper through hole 31 and a lower through hole 33. The upper through hole 31 is located at the top of the housing 3 and the lower through hole 33 is located at the bottom of the housing 3. The trigger shaft 5 is provided in the housing 3. The trigger shaft 5 can move up and down relative to the housing 3 between a higher position A1 and a lower position (not shown in FIG. 1). The top 51 of the trigger shaft 5 can pass through the upper through-hole 31 and extend upwards out of the housing 3, and the bottom end 53 of the trigger shaft 5 can pass through the lower through-hole 33 and extend downward from the housing 3. The upward restoring force element 7 is provided in the housing 3. Wherein, the housing 3 may include, for example, an upper housing 3a and a lower housing 3b, so that the trigger shaft 5 and the upward restoring force element 7 can be conveniently arranged, but the present invention is not limited thereto. As shown in FIG. 1, when the top 51 of the trigger shaft 5 is not pressed by a trigger force, the upward restoring force element 7 will move the trigger shaft 5 upward to a higher position A1.

The elastic contact 100 is connected between the mechanical switch 300 and the circuit board 1. The supporting portion 130 of the elastic contact 100 is used to support the pressing portion 110 on the circuit board 1, and the elastic wall portion 150 is connected between the pressing portion 110 and the supporting portion 130. The elastic wall portion 150 swells from the inside of the support portion 130 and extends to the periphery of the pressing portion 110. The connection between the elastic wall portion 150 and the support portion 130 constitutes a first contact portion 157. As shown in FIG. 1, when the top 51 of the trigger shaft 5 is not pressed by the trigger force, the first contact portion 157 of the elastic contact 100 remains separated from the circuit board 1.

Please refer to FIG. 4A and FIG. 4B at the same time. FIG. 4A and FIG. 4B are schematic diagrams of the operation of the input device K according to an embodiment of the present invention. As shown in FIG. 4A, when the top 51 of the trigger shaft 5 is pressed by the trigger force Fa and the trigger shaft 5 moves to the lower position A2, the bottom end portion 53 of the trigger shaft 5 moves downward and extends out of the housing 3 to abut The pressing portion 110 is moved downward, thereby deforming the elastic wall portion 150. The elastic wall portion 150 drives the supporting portion 130 to move downward, so that the first contact portion 157 touches the circuit board 1, and the purpose of triggering the input device K through the first contact portion 157 is achieved.

Incidentally, the bottom of the pressing portion 110 of the elastic contact 100 may further include a second contact portion 113, for example. As shown in FIG. 4B, when the top 51 of the trigger shaft 5 is pressed by the trigger force Fb, and the trigger shaft 5 continues to move downward from the lower position A2 to the lower position A3, the bottom end portion 53 of the trigger shaft 5 moves downward and extends The contact with the outside of the housing 3 causes the pressing portion 110 to move downward, thereby causing a greater amount of deformation of the elastic wall portion 150. The elastic wall portion 150 drives the support portion 130 to move downwards, so that the first contact portion 157 and the second contact portion 113 both touch the circuit board 1, and the first contact portion 157 touches the circuit board 1 first, and triggers the input device first K sends out a switch to turn on the electrical signal; then the second contact part 113 touches the circuit board 1 later to continue the trigger state of the input device K and continue to output the switch to turn on the electrical signal; thus ensuring that the input device K is pressed throughout the process It is kept triggered and will not malfunction. It outputs two interrupted switches to conduct electrical signals, and is mistakenly judged as two key presses to trigger the action. The detailed operation details of the elastic contact 100 will be described in detail below.

In addition, the upward restoring force element 7 of the mechanical switch 300 can be realized by a spring, for example, but the invention is not limited thereto. In addition, the form and arrangement of the housing 3, the trigger shaft 5 and the upward restoring element 7 of the mechanical switch 300 shown in FIGS. 1 to 4B are only an example, and are not intended to limit the present invention. In addition to the linear spring, the shape and arrangement Elastomer, magnet with repulsive polarity, etc. As long as the trigger shaft 5 is not pressed by the trigger force, the upward restoring force element 7 can move the trigger shaft 5 upward to a higher position A1. For example, a keycap (not shown) may be provided above the mechanical switch 300 for the user to perform a pressing operation, but the present invention is not limited thereto.

Specifically, the circuit board 1 of the input device K further includes a switch electrode 11. The switch electrode 11 can be turned on when pressed. The switch electrode 11 is provided below the first contact portion 157. When the bottom end portion 53 of the trigger shaft 5 moves downward and extends out of the housing 3 to abut to move the pressing portion 110 downward, the first contact portion 157 may touch the switch electrode 11 of the circuit board 1 and cause the switch electrode 11 is turned on to achieve the purpose of triggering the input device K through the first contact portion 157. Incidentally, the switch electrode 11 may also be extended under the second contact portion 113 at the same time, for example. When the bottom end portion 53 of the trigger shaft 5 moves downward and protrudes out of the housing 3 to abut to move the pressing portion 110 downward, so that the second contact portion 113 touches the switch electrode 11 of the circuit board 1, the switch electrode can be made 11 is turned on, the first contact portion 157 first touches the outer peripheral area of the switch electrode 11, first triggers the input device K to send a switch-on electrical signal; then the second contact portion 113 touches the center area of the switch electrode 11 later, and continues the input The trigger state of the device K continues to output the switch-on electrical signal; this ensures that the input device K is kept triggered during the entire pressing process, and will not malfunction to output two interrupted switch-on electrical signals, and is mistakenly judged as two keystrokes Press to trigger the action.

Please refer to FIGS. 5 and 6 at the same time. FIG. 5 is a schematic diagram of the elastic contact 100 of the embodiment shown in FIGS. 1 to 4B. FIG. 6 is a partial cross-sectional schematic view of the elastic contact 100 of the embodiment shown in FIGS. 1 to 4B. . In detail, the elastic contact 100 includes a pressing portion 110, a supporting portion 130 and an elastic wall portion 150. The support portion 130 is used to support the pressing portion 110 on the circuit board 1. The supporting portion 130 includes a supporting plate portion 131 and a supporting wall portion 133. The support plate portion 131 is placed on the circuit board 1. The support wall portion 133 extends from the support plate portion 131 toward the pressing portion 110. The elastic wall portion 150 is connected between the pressing portion 110 and the support portion 130. The elastic wall portion 150 swells from the inside of the support portion 130 and extends to the periphery of the pressing portion 110. The connection between the elastic wall portion 150 and the support portion 130 constitutes a first contact portion 157, wherein the elastic wall portion 150 includes a first elastic portion 153, an elastic turning portion 151, and a second elastic portion 155. The first elastic portion 153 is connected between the support portion 130 and the elastic turning portion 151. The elastic turning portion 151 is connected between the first elastic portion 153 and the second elastic portion 155. The second elastic portion 155 is connected between the elastic turning portion 151 and the pressing portion 110.

As shown in FIG. 6, when the pressing portion 110 is not pressed by an external force, the height of the pressing portion 110 is at the position B1, and the support wall portion 133 and the first contact portion 157 are kept separated from the circuit board 1. When the pressing portion 110 is pressed by an external force (not shown in FIG. 6), the elastic turning portion 151 of the elastic wall portion 150 is deformed, and the elastic wall portion 150 drives the supporting portion 130 to move downward so that the first contact portion 157 Touch the circuit board 1.

Please refer to FIGS. 7A-7D at the same time. FIGS. 7A-7D are schematic diagrams of the operation of the elastic contact 100 according to an embodiment of the invention. As shown in FIG. 7A, when the pressing portion 110 of the elastic contact 100 is pressed by the external force F1 to move downward by the first distance d1, the height of the pressing portion 110 moves from the position B1 to the position B2. The elastic wall portion 150 drives the supporting portion 130 to move downward, so that the first contact portion 157 touches the circuit board 1. Next, as shown in FIG. 7B, when the pressing portion 110 of the elastic contact 100 is pressed by the external force F2 and continues to move downward from the position B2 to the position B3, the elastic turning portion 151 of the elastic wall portion 150 is further bent. Next, as shown in FIG. 7C, when the pressing portion 110 is pressed by the external force F3 and moves downward from the position B1 by the second distance d2, and the pressing portion 110 moves from the position B1 to the position B4, the elastic turning portion 151 of the elastic wall portion 150 will Further bending, the first contact portion 157 and the second contact portion 113 of the pressing portion 110 both touch the circuit board 1. The second distance d2 is greater than the first distance d1. Next, as shown in FIG. 7D, when the pressing portion 110 of the elastic contact 100 is pressed by the external force F4 and continues to move downward from the position B4 to the position B5, the elastic turning portion 151 of the elastic wall portion 150 will further bend; A contact portion 157 may be separated from the outer peripheral area of the switch electrode 11, but because the second contact portion 113 still remains in contact with the central area of the switch electrode 11, the trigger state of the input device K can be continued, and the switch can continue to output the communication In this way, to avoid misoperation, output two interrupted switches to turn on the electrical signal, and be mistaken for two key presses to trigger the action. Among them, as shown in FIGS. 1, 4A, and 4B, the external forces F1, F2, F3, and F4 are when the trigger shaft 5 is pressed when the trigger force is applied, and the bottom end portion 53 of the trigger shaft 5 moves downward to abut the pressing portion 110 produced.

Please also refer to FIG. 8, which is a schematic diagram of the force curve of the elastic contact 100 according to an embodiment of the invention. The X axis of FIG. 8 shows the stroke of the pressing portion 110 moving downward, and the Y axis shows the magnitude of the external force pressing the pressing portion 110. When the pressing portion 110 is not pressed by an external force (external force=0 g), the pressing portion 110 is located at the position B1. When the pressing portion 110 is pressed by the external force F1, it moves from the position B1 to the position B2, so that the first contact portion 157 touches the circuit board 1. When the pressing portion 110 is pressed downward by the external force F2 and moves downward, the elastic turning portion 151 of the elastic wall portion 150 is further bent. When the pressing portion 110 is pressed by the external force F3 and moves downward from the position B1 by the second distance d2, the pressing portion 110 moves from the position B1 to the position B4, the elastic turning portion 151 of the elastic wall portion 150 further bends, and the first portion of the pressing portion 110 Both a contact portion 157 and the second contact portion 113 touch the circuit board 1. When the pressing portion 110 is pressed downward by the external force F4 and moves downward, the elastic turning portion 151 of the elastic wall portion 150 is further bent. Therefore, as can be seen from FIG. 8, as long as the external force F1 is small, the first contact portion 157 can touch the circuit board 1 to trigger the input device K. In this embodiment, by providing the elastic contact 100 including the support portion 130 and the elastic wall portion 150, the trigger stroke of the input device K when pressed is short, and a fast-responsive switch structure can be realized. It is also possible to adjust the feel when pressing the input device K.

Specifically, the elastic turning portion 151 of the elastic wall portion 150 includes a first turning portion 1511 and a second turning portion 1513. The first turning portion 1511 is located at the connection between the elastic turning portion 151 and the first elastic portion 153, and the second turning portion 1513 is located at the connection between the elastic turning portion 151 and the second elastic portion 155. When the pressing portion 110 is pressed by an external force, the first turning portion 1511 and/or the second turning portion 1513 are bent to drive the supporting portion 130 to move downward. In detail, when the pressing portion 110 is pressed by the external force F1 to move downward by the first distance d1, the first turning portion 1511 and/or the second turning portion 1513 are bent, and the elastic wall portion 150 drives the supporting portion 130 to move downward to The first contact portion 157 touches the circuit board 1. When the pressing portion 110 is pressed by the external force F3 to move downward by the second distance d2, the first turning portion 1511 and/or the second turning portion 1513 bend so that both the first contact portion 157 and the second contact portion 113 touch the circuit Plate 1.

Incidentally, the bottom surface of the first contact portion 157 of the elastic contact 100 may, for example, form a first contact surface 1573 for contacting the circuit board 1 when the pressing portion 110 is pressed down, thereby achieving penetration through the first contact surface 1573 The purpose of the input device K is triggered.

In addition, the first contact portion 157 of the elastic contact 100 may include, for example, a first contact 1571 that extends downward. The bottom surface of the first contact 1571 forms a first contact surface 1573 for contacting the circuit board 1 when the pressing portion 110 is depressed, so as to achieve the purpose of triggering the input device K through the first contact surface 1573. Through the arrangement of the first contact 1571, the feel of pressing the input device K can be further adjusted, for example, the stroke of the trigger can be shortened. Among them, the shape and type of the first contact 1571 shown in FIG. 6 are only an example, and are not intended to limit the present invention. In other embodiments of the present invention, the first contact portion 157 may not include the first contact 1571, but only include the first contact surface 1573, for example.

In addition, the bottom surface of the second contact portion 113 of the pressing portion 110 of the elastic contact 100 may, for example, form a second contact surface 1133 for contacting with the circuit board 1 when the pressing portion 110 is depressed to achieve transmission through the second contact surface 1133 The purpose of the input device K is triggered.

On the other hand, the second contact portion 113 of the pressing portion 110 of the elastic contact 100 may further include a second contact 1131 extending downward, and the bottom surface of the second contact 1131 is formed to be pressed down by the pressing portion 110 At the second contact surface 1133 in contact with the circuit board 1. Through the arrangement of the second contact 1131, the feel of pressing the input device K can be further adjusted. Among them, the shape and type of the second contact 1131 shown in FIG. 6 are only an example, and are not intended to limit the present invention. In other embodiments of the present invention, the second contact portion 113 may not include the second contact 1131 but only include the second contact surface 1133, for example.

It is worth noting that when the pressing portion 110 of the elastic contact 100 is not pressed by an external force, the height of the elastic turning portion 151 of the elastic wall portion 150 is higher than or equal to the height of the first elastic portion 153. When the pressing portion 110 is pressed by an external force, the height of the elastic turning portion 151 is lower than the height of the first elastic portion 153. The thickness of the pressing portion 110 of the elastic contact 100 is, for example, greater than the thickness of the elastic wall portion 150. Therefore, when the pressing portion 110 is pressed by an external force, the elastic wall portion 150 may be deformed, but the invention is not limited thereto.

Incidentally, the pressing portion 110 of the elastic contact 100 may further include a recessed portion 111 recessed downward from the upper surface of the pressing portion 110, for example. As shown in FIGS. 1, 4A, and 4B, the recess 111 corresponds to the bottom 53 of the trigger shaft 5 of the mechanical switch 300, and the bottom 53 of the trigger shaft 5 contacts the recess 111. Through the arrangement of the recessed portion 111, when the top portion 51 of the trigger shaft 5 is pressed by the triggering force, the bottom end portion 53 of the trigger shaft 5 abuts the recessed portion 111, so that the pressing portion 110 moves downward. Therefore, the mechanical switch 300 can effectively and accurately drive the elastic contact 100 when pressed.

Please refer to FIG. 9, which is a schematic diagram of a contact film according to an embodiment of the invention. The contact film M includes a connection film 200 and a plurality of elastic contacts 100 described in FIGS. 1 to 8, wherein the support plate portion 131 of each elastic contact 100 is connected to the connection film 200. The elastic contacts 100 and the connecting film 200 may be formed by integral molding, for example. The elastic contacts 100 and the connecting film 200 may be made of silicone rubber, for example, but the invention is not limited thereto. The contact film M including a plurality of elastic contacts 100 can be applied to an input device such as a keyboard, for example, but the invention is not limited thereto.

In summary, the elastic contact and the input device using the elastic contact according to the embodiments of the present invention are provided with the pressing part, the supporting part and the elastic wall part on the elastic contact part, and the connection between the elastic wall part and the supporting part At the first contact part. When the elastic contact piece is pressed by an external force, the elastic turning portion of the elastic wall portion deforms, and the elastic wall portion drives the support portion to move downward so that the first contact portion touches the circuit board. Therefore, the trigger stroke of the elastic contact piece and the input device when pressed is short, and a fast-responsive switch structure can be realized.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention belongs can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined in the appended patent application.

1‧‧‧ Circuit board 11‧‧‧ Switch electrode 100‧‧‧Elastic contact 110‧‧‧Pressing part 111‧‧‧Depressed part 113‧‧‧Second contact part 1131‧‧‧Second contact 1133‧‧ ‧Second contact surface 130‧‧‧Support part 131‧‧‧Support plate part 133‧‧‧Support wall part 150‧‧‧ Elastic wall part 151‧‧‧Elastic turning part 1511‧‧‧First turning part 1513‧‧ ‧Second turning part 153‧‧‧First elastic part 155‧‧‧Second elastic part 157‧‧‧First contact part 1571‧‧‧First contact piece 1573‧‧‧First contact surface 3‧‧‧Shell Body 3a‧‧‧Upper case 3b‧‧‧Lower case 31‧‧‧Upper through hole 33‧‧‧‧Lower through hole 5‧‧‧ Trigger shaft 51‧‧‧Top 53‧‧‧Bottom end 7‧‧ ‧Restoring force element 300‧‧‧Mechanical switch 200‧‧‧Connecting film A1‧‧‧Higher position A2‧‧‧Lower position A3‧‧‧Lower position B1, B2, B3, B4, B5‧‧‧ Position d1‧‧‧ First distance d2‧‧‧ Second distance F1, F2, F3, F4‧‧‧ External force Fa, Fb‧‧‧ Trigger force K‧‧‧ Input device M‧‧‧ Contact film

FIG. 1 is a schematic cross-sectional view of an input device according to an embodiment of the invention. 2 is a schematic top view of an input device according to an embodiment of the invention. 3 is an exploded schematic view of an input device according to an embodiment of the invention. 4A and 4B are schematic diagrams of the operation of the input device according to an embodiment of the invention. 5 is a schematic diagram of an elastic contact according to an embodiment of the invention. 6 is a schematic partial cross-sectional view of an elastic contact according to an embodiment of the invention. 7A-7D are schematic diagrams of the operation of an elastic contact according to an embodiment of the invention. 8 is a schematic diagram of a force curve of an elastic contact according to an embodiment of the invention. 9 is a schematic diagram of a contact film according to an embodiment of the invention.

1‧‧‧ circuit board

11‧‧‧Switch electrode

100‧‧‧Elastic contact

110‧‧‧Pressing part

113‧‧‧The second contact part

130‧‧‧Support

150‧‧‧Elastic wall

157‧‧‧The first contact part

3‧‧‧Housing

31‧‧‧Upper through hole

33‧‧‧lower through hole

5‧‧‧trigger axis

51‧‧‧Top

53‧‧‧Bottom

7‧‧‧Resistance component upward

300‧‧‧Mechanical switch

200‧‧‧Connecting film

A1‧‧‧Higher position

K‧‧‧Input device

Claims (15)

An elastic contact piece includes: a pressing portion for pressing operation; a supporting portion for supporting the pressing portion on a circuit board, the supporting portion includes a supporting plate portion and a supporting wall portion, the supporting plate Partly placed on the circuit board, the supporting wall portion extends from the supporting plate portion toward the pressing portion; and an elastic wall portion, the elastic wall portion is connected between the pressing portion and the supporting portion, the elastic wall portion Protruding from the inner side of the support portion and extending to the periphery of the pressing portion, the connection between the elastic wall portion and the support portion constitutes a first contact portion, wherein the elastic wall portion includes a first elastic portion and an elastic turning portion And a second elastic portion, the first elastic portion is connected between the support portion and the elastic turning portion, the elastic turning portion is connected between the first elastic portion and the second elastic portion, the second elastic portion Connected between the elastic turning portion and the pressing portion; wherein, when the pressing portion is not pressed by an external force, the support wall portion and the first contact portion are kept separated from the circuit board; wherein, when the pressing portion When pressed by the external force, the elastic turning portion of the elastic wall portion deforms, and the elastic wall portion drives the supporting portion to move downward so that the first contact portion touches the circuit board. The elastic contact as described in item 1 of the patent application scope, wherein the elastic turning part includes a first turning part and a second turning part, the first turning part is located at the connection between the elastic turning part and the first elastic part At this point, the second turning portion is located at the connection between the elastic turning portion and the second elastic portion. When the pressing portion is pressed by the external force, the first turning portion and/or the second turning portion are bent to drive the The support moves downward. The elastic contact according to item 1 of the patent application scope, wherein the bottom surface of the first contact portion forms a first contact surface for contacting the circuit board when the pressing portion is depressed. The elastic contact piece as described in item 1 of the patent application range, wherein the first contact portion includes a first contact piece extending downward, and a bottom surface of the first contact piece is formed to cooperate with the pressing portion when pressed A first contact surface contacted by the circuit board. The elastic contact as claimed in item 1 of the patent scope, wherein when the pressing portion is not pressed by the external force, the height of the elastic turning portion is higher than or equal to the height of the first elastic portion; wherein when the pressing portion is subjected to the external force When pressed, the height of the elastic turning portion is lower than the height of the first elastic portion. The elastic contact as described in item 3 of the patent application range, wherein the bottom of the pressing portion includes a second contact portion, and a bottom surface of the second contact portion is formed to contact the circuit board when the pressing portion is depressed A second contact surface; wherein, when the pressing portion is pressed by the external force to move down a first distance, the elastic wall portion drives the supporting portion to move downward, so that the first contact portion touches the circuit board When the pressing portion is pressed by the external force to move down a second distance, the second contact portion touches the circuit board, and the second distance is greater than the first distance. The elastic contact as described in item 6 of the patent application range, wherein the elastic turning part includes a first turning part and a second turning part, the first turning part is located at the connection between the elastic turning part and the first elastic part At this point, the second turning portion is located at the connection between the elastic turning portion and the second elastic portion. When the pressing portion is pressed by the external force to move down the first distance, the first turning portion and/or the first turning portion The second turning part bends, and the elastic wall part drives the supporting part to move downward, so that the first contact part touches the circuit board, and when the pressing part is pressed by the external force to move down the second distance, the first A turning portion and/or the second turning portion are bent so that the second contact portion touches the circuit board. The elastic contact as described in Item 6 of the patent application range, wherein the second contact portion includes a second contact extending downward, and a bottom surface of the second contact is formed for contact with the pressing portion A second contact surface contacted by the circuit board. The elastic contact according to item 1 of the patent application range, wherein the thickness of the pressing portion is greater than the wall thickness of the elastic wall portion. A contact member film includes a connecting film and a plurality of elastic contact members as described in any one of claims 1 to 9, the elastic contact members and the connecting film are integrally formed. An input device includes: a circuit board; a mechanical switch disposed above the circuit board, the mechanical switch includes: a housing having an upper through hole and a lower through hole, the upper through hole Located at the top of the housing, the lower through hole is located at the bottom of the housing; a trigger shaft, the trigger shaft is disposed in the housing, the trigger shaft can move up and down relative to the housing between a higher position and a lower position , The top of the trigger shaft can pass through the upper through hole and extend upwards out of the housing, the bottom end of the trigger shaft can pass through the lower through hole and extend downwards out of the housing; and an upward recovery force element, provided In the housing, when the top of the trigger shaft is not pressed by a trigger force, the upward restoring force element moves the trigger shaft upward to the higher position; and an elastic contact piece connected to the mechanical switch Between the circuit board, the elastic contact includes: a pressing portion; a supporting portion for supporting the pressing portion on the circuit board, the supporting portion includes a supporting plate portion and a supporting wall portion, the supporting The board portion is placed on the circuit board, and the supporting wall portion extends from the supporting board portion toward the pressing portion; and an elastic wall portion, the elastic wall portion is connected between the pressing portion and the supporting portion, the elastic wall The portion swells from the inner side of the supporting portion and extends to the periphery of the pressing portion, the connection between the elastic wall portion and the supporting portion constitutes a first contact portion, wherein the elastic wall portion includes a first elastic portion, an elastic turning Part and a second elastic part, the first elastic part is connected between the supporting part and the elastic turning part, the elastic turning part is connected between the first elastic part and the second elastic part, the second elastic part Partly connected between the elastic turning part and the pressing part; wherein, when the top of the trigger shaft is not pressed by the triggering force, the supporting wall part and the first contact part are kept separated from the circuit board; wherein, When the top of the trigger shaft is pressed by the trigger force, the bottom end portion of the trigger shaft moves downward and extends out of the housing to abut to move the pressing portion downward, thereby causing the elastic turning portion of the elastic wall portion A deformation occurs, and the elastic wall portion drives the support portion to move downward, so that the first contact portion touches the circuit board. The input device as described in item 11 of the patent application range, wherein the circuit board further includes at least one switch electrode, the switch electrode is disposed below the first contact portion, and the bottom end of the trigger shaft moves downward to extend When the pressing portion moves downwards when the housing is abutted, the elastic turning portion of the elastic wall portion deforms, and the elastic wall portion drives the supporting portion to move downward so that the first contact portion touches the The switch electrode of the circuit board. The input device as described in item 11 of the patent application range, wherein the bottom surface of the first contact portion forms a first contact surface for contacting the circuit board when the pressing portion is depressed, the bottom of the pressing portion includes A second contact portion, a bottom surface of the second contact portion forms a second contact surface for contacting the circuit board when the pressing portion is depressed, the circuit board further includes at least one switch electrode, the switch electrodes extend simultaneously Below the first contact surface and the second contact surface; wherein, when the bottom end portion of the trigger shaft moves downward and extends out of the housing to abut to move the pressing portion downward by a first distance, the The elastic wall portion drives the supporting portion to move downward, so that the first contact portion touches the switch electrode to turn on the switch electrode, and when the bottom end portion of the trigger shaft moves downward and extends out of the housing to abut When the pressing portion moves downward for a second distance, at least the second contact portion touches the switch electrode to turn on the switch electrode, and the second distance is greater than the first distance. The input device as described in item 13 of the patent application range, wherein the elastic turning part of the elastic contact includes a first turning part and a second turning part, the first turning part is located between the elastic turning part and the first The connecting part of the elastic part, the second turning part is located at the connecting part of the elastic turning part and the second elastic part, when the bottom end of the trigger shaft moves downward and extends out of the housing to abut the pressing part towards When the first distance is moved downward, the first turning portion and/or the second turning portion are bent, and the elastic wall portion drives the supporting portion to move downward, so that the first contact portion touches the switch electrode when the When the bottom end portion of the trigger shaft moves downward and extends out of the housing to contact the pressing portion to move downward by the second distance, the first turning portion and/or the second turning portion bends to make the second The contact part touches the switch electrode. The input device according to item 11 of the patent application range, wherein the pressing portion includes a recessed portion recessed downward from an upper surface of the pressing portion, the recessed portion corresponds to the bottom of the trigger shaft, and the bottom of the trigger shaft and the The depression is in contact.

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