TWI645437B - Key switch - Google Patents

Abstract

A button, the key cap mainly maintains a contact membrane switch by an annular elastic body such as a coil spring, and applies a pressing force to the membrane switch, and triggers the membrane switch to be turned on. Thus, the button of the present invention can be changed by changing the film. The spacer layer size or shape in the switch is used to adjust the pressing force required for the button to be turned on, and the design is such that the key cap is moved downward to half the pressing stroke to allow the membrane switch to be turned on.

Description

button

The present invention relates to a button, and more particularly, to a button that can be pressed by a structural design of a membrane switch to reduce the pressing force required for a button operation.

Press, the trigger switch of the traditional button can usually be divided into mechanical and non-mechanical. The mechanical trigger switch is provided with a pair of metal electrodes in the button housing, and the triggering state of the trigger switch is determined by the electrical contact of the pair of metal electrodes. However, the pair of metal electrodes in the button housing are contacted. Generally, a large pressing force is applied to the button to displace at least one of the pair of metal electrodes, thereby causing electrical contact between the pair of metal electrodes, which is a button using a mechanical trigger switch. One of the main topics of the disease.

The non-mechanical trigger switch is provided with a rubber rubber (Rubber Dome) under the keycap to provide elastic restoring force to the pressed keycap by the rubber elastic body, so that the keycap can return to the position before pressing, and The user who presses the keycap provides a stepwise pressing feel that is not required by the mechanical trigger switch. However, in order to provide sufficient elastic restoring force, the volume of the rubber elastic body is generally difficult to be reduced, which is disadvantageous for the application of thinning of the keys. In addition, the rubber elastomer often has a aging condition of the rubber under long-term use, so that the service life of the button cannot be effectively improved.

Therefore, how to set the pair of metal electrodes of the mechanical trigger switch in the button to reduce the pressing force required for the button operation, and to eliminate the setting of the rubber elastic body of the non-mechanical trigger switch to reduce the button The thickness and the life of the button are the technical issues solved for this case.

In view of the above disadvantages of the prior art, the present invention provides a button comprising: a button housing, a force receiving body, a membrane switch, a pressing block and an annular elastic body. The button housing has an upper guiding structure and a lower guiding structure. The force system is movably embedded in the upper guiding structure. The film-type open relationship has a pressing portion, an upper flexible circuit layer and a lower bottom circuit layer, and the upper flexible circuit layer and the lower bottom circuit layer respectively have an upper contact and a lower contact, wherein when the pressing portion receives a pressing force greater than When the pressure is triggered, the membrane switch is in the triggered state. The pressing block system is movably embedded in the lower guiding structure and remains in contact with the pressing portion. The annular elastic system is disposed in the button housing and respectively contacts the force receiving body and the pressing block body. When the force receiving body is not stressed, the annular elastic system applies a first to the pressing portion by pressing the block body. When the first pressing force is less than the triggering pressure, the membrane switch is in an untriggered state; when the force receiving body is pressed by the external force, the force receiving body is guided by the upper guiding structure to move along the Z-axis direction, causing the ring The elastic body compresses the length along the Z-axis direction, thereby forcing the pressing block to be moved along the Z-axis direction by the guiding of the lower guiding structure to apply a second pressing force to the pressing portion by pressing the block body, if the second pressing If the pressure system is greater than the trigger pressure, the upper flexible circuit layer is deformed toward the lower base circuit layer, and the upper and lower contacts are electrically contacted with each other to trigger the membrane switch.

In addition, the present invention further provides a button, comprising: a key cap, a button housing, a force receiving body, a pressing block body, an annular elastic body, a membrane switch, and a light source. The button housing has an upper guiding structure and a lower guiding structure. The button housing is disposed below the keycap. The force system is movably embedded in the upper guiding structure. The pressing block system is movably embedded in the lower guiding structure. The annular elastic system is disposed in the button housing, and the annular elastic body has an upper portion of the elastic body and a lower portion of the elastic body, and the upper portion of the elastic body and the lower portion of the elastic body respectively receive the force body and the pressing block body. The film-opening relationship has a pressing portion, an upper flexible circuit layer, a spacer layer and a lower substrate circuit layer, wherein the upper flexible circuit layer is disposed under the button housing, and the upper flexible circuit layer has an upper transparent region and an upper connection The upper transparent region is located below the pressing block, and the upper contact is disposed below the pressing block and outside the upper transparent region. The pressing portion is located above the upper joint. The spacer layer is disposed under the upper flexible circuit layer, the spacer layer has a conduction channel, and the conduction channel is located below the upper contact. The lower backplane circuit layer is disposed under the spacer layer, and the lower backplane circuit layer has a lower transparent region and a lower contact, the lower transparent region is located below the upper transparent region, and the lower contact is disposed under the pressing block And located outside the lower light transmission area. The light source has a light emitting surface, and the light emitting surface provides light, and the area of the light emitting surface is smaller than or equal to the area of the upper light transmitting area, so that the light is output through the upper light transmitting area; wherein, when the force receiving body is not stressed, the pressing block The first body pressing force is applied to keep contact with the pressing portion. When the first pressing force is less than the triggering pressure, the spacing layer keeps the upper contact and the lower contact separate, so that the membrane switch is in an untriggered state; When the external force is pressed, the force receiving body is guided downward by the guiding of the upper guiding structure, and the annular elastic body is compressed and shortened, and at least a part of the pressing external force is transmitted to the pressing block body, so that the pressing block body is pressed against the pressing portion. A second pressing force is applied, and the second pressing force is greater than the triggering pressure, so that the upper flexible circuit layer is deformed to the bottom floor circuit layer, and the upper and lower contacts are electrically connected to each other via the conduction channel to trigger the thin film switch.

Furthermore, the present invention further provides a button, comprising: a key cap, a guiding mechanism, a pressing block, an annular elastic body, a membrane switch, and a light source. The guiding mechanism can guide the keycap to move up and down. The pressing block system is located below the keycap. The annular elastic body has an upper portion of the elastic body and a lower portion of the elastic body, and the upper portion of the elastic body and the lower portion of the elastic body abut against the key cap and the pressing block body, respectively. The film-opening relationship has a pressing portion, an upper flexible circuit layer, a spacer layer and a lower substrate circuit layer, wherein the upper flexible circuit layer has an upper transparent region and an upper contact, and the upper transparent region is located below the pressing block The upper contact is disposed under the pressing block and located outside the upper transparent area, and the pressing portion is located above the upper contact; the spacing layer is disposed below the upper flexible circuit layer, and the spacing layer has a conduction channel and is conductive The channel is located below the upper contact; the circuit layer of the lower substrate is disposed below the spacer layer, the circuit layer of the lower substrate has a lower transparent region and a lower contact, and the lower transparent region is located below the upper transparent region, and the lower contact is disposed at Below the upper contact and in the area outside the lower light transmission area. The light source has a light-emitting surface, and the light-emitting surface provides light, and the region of the light-emitting surface is smaller than or equal to the region of the upper light-transmitting region, so that the light is output through the upper light-transmitting region. When the keycap is not stressed, the pressing block keeps contacting the pressing portion to apply the first pressing force. If the first pressing force is less than the triggering pressure, the spacing layer keeps the upper contact and the lower contact separate, so that the membrane switch When the keycap is subjected to an external force, the keycap is guided downward by the guiding mechanism to urge the annular elastic body to be compressed, and at least a part of the pressing external force is transmitted to the pressing block to press The block body applies a second pressing force to the pressing portion. If the second pressing force is greater than the triggering pressure, the upper flexible circuit layer is deformed to the bottom floor circuit layer, and the upper and lower contacts are electrically connected to each other via the conduction channel. Achieve the trigger of the membrane switch.

Compared with the prior art, the keycap of the present invention mainly uses a ring-shaped elastic body to keep in contact with the membrane switch, and applies a pressing force to the membrane switch at any time when the applied pressing pressure is less than the triggering pressure of the membrane switch. The membrane switch is in an untriggered state. Conversely, when the applied pressure is greater than the trigger pressure of the membrane switch, the membrane switch is triggered. Thus, the button of the present invention can be designed by the structure of the membrane switch, for example, by changing The size or shape of the spacer in the membrane switch to change the preset trigger pressure of the membrane switch, thereby reducing the pressing force required for the button operation, and even designing the keycap to move down to half the pressing stroke. The switch is turned on.

Furthermore, the annular elastic body can replace the rubber elastic body provided in the conventional button, and since the annular elastic body can be selected as a coil spring, the annular elastic body of the present invention can provide sufficient space in a small volume. The elastic restoring force, in this way, the setting of the rubber elastic body can be omitted in the implementation of the button of the invention, without the problem of rubber aging to improve the life of the button, and the thickness of the button can be reduced to be applied to the thin keyboard design.

The other aspects of the present invention will be readily understood by those skilled in the art from this disclosure. The invention may also be embodied or applied by other different embodiments. The details of the present invention can be variously modified and changed without departing from the spirit and scope of the invention. In particular, the relative relationship and relative positions of the various elements in the drawings are for illustrative purposes only and are not representative of actual implementation of the invention.

For the technical idea of the present invention, please refer to the embodiment of FIG. 1 to FIG. 14-6 for disclosure:

First embodiment

As shown in FIG. 1 to FIG. 6-1, the button 1 of the present embodiment includes a keycap 10, a button housing 11, a force receiving body 12, a membrane switch 13, a pressing block 14, and an annular elastic body 15, Light source 16 and feel spring 17. The force body 12 can be embedded with the keycap 10 and can be used to receive the pressing force from the keycap 10. The feel spring 17 is, for example, a torsion spring, and can be matched with the concave-convex structure on the side of the force receiving body 12. When the user presses the keycap 10 to cause the force receiving body 12 to move downward, the hand-feel spring 17 will downward toward the force receiving body 12. The movement provides a stepwise elastic resistance, and the user who presses the keycap 10 feels that the hand feels in a stepwise manner. The light source 16 has a light exit surface 161 that emits light to illuminate the keycap 10. The button housing 11 is disposed above the membrane switch 13 and disposed below the keycap 10. In the present embodiment, the button housing 11 is composed of at least the upper key housing 113 and the lower key housing 114, and the upper and lower key housings 113 and 114 can be assembled to be integrated to form a space in the interior. The force receiving body 12, the annular elastic body 15 and the pressing block body 14 are accommodated, and the upper and lower portions of the annular elastic body 15 are respectively brought into contact with the force receiving body 12 and the pressing block body 14, and the elastic force is deformed to transmit the force, and the force is applied. At least a portion of the pressing force received by the body 12 is transmitted to the pressing block 14 to cause the pressing block 14 to move.

More specifically, as shown in FIGS. 2, 3, 5, and 6, the annular elastic body 15 is, for example, a coil spring, and has an elastic body upper portion 151, an elastic body lower portion 152, and an inner cavity 153. Since the elastic body upper portion 151 and the elastic body lower portion 152 respectively receive the force body 12 and the pressing block body 14, the annular elastic body 15 can transmit at least a part of the pressing external force received by the force receiving body 12 to the pressing block body 14 . Up to achieve the trigger of the membrane switch 13.

Further, in the present embodiment, the elastic body guiding structure 141 is formed on the side of the pressing block body 14 facing away from the film type switch 13. As seen from the perspective of the view of FIG. 3, the outer periphery of the elastomer guiding structure 141 can be embedded in the annular elastic body 15 to substantially abut against the inner surface of the annular elastic body 15, and more specifically, in the present embodiment, The outer peripheral contour shape of the elastic body guiding structure 141 and the cavity contour shape of the inner cavity 153 of the annular elastic body 15 are geometrically similar contour shapes, so that the elastic body guiding structure 141 can extend substantially vertically. In the inner cavity 153 of the annular elastic body 15, the abutment of the lower elastic body portion 152 and the pressing block body 14 is completed. As shown in FIG. 3 , the elastic body guiding structure 141 is, for example, a cylindrical upright column body, and has a guiding surface 1411 on the outer peripheral side surface, and the 俾 guiding elastic body lower portion 152 is sleeved on the pressing block body 14 , and When the force receiving body 12 is stressed, the annular elastic body 15 is guided to compress the length substantially vertically. Alternatively, as shown in FIG. 5, half of the extended length of the annular elastic body 15 is greater than the extended length of the pressing block body 14, and the enamel ensures that the elastic body 15 is compressed to a half length and still has a sufficient length to be sleeved. When the block body 14 is pressed, the force receiving body 12 is prevented from directly abutting against the pressing block body 14 too early, and the pressing feeling when the button 1 is operated is affected.

The upper wall surfaces of the upper and lower key shells 113 and 114 are respectively provided with an upper guiding structure 111 and a lower guiding structure 112, and the force receiving body 12 and the pressing block body 14 are respectively movably embedded in the upper and lower guiding structures 111, 112. In this way, when the force receiving body 12 receives the pressing force, the force receiving body 12 can be moved in the Z-axis direction by the guiding of the upper guiding structure 111, and the circular elastic body 15 is caused to compress the length along the Z-axis direction to be elastically deformed. The pressing block 14 is forced to move in the Z-axis direction by the guidance of the lower guiding structure 112, and the trigger of the membrane switch 13 is achieved.

As shown in Figure 13-2 and Figure 13-3, the membrane switch 13 has an upper flexible circuit layer 132, a lower base circuit layer 133 and a spacer layer 134. As shown in FIG. 5-1 and FIG. 6-1, the upper flexible circuit layer 132 has a pressing portion 131, an upper transparent portion 1322 and an upper contact 1321. The pressing portion 131 is adjacent to the upper flexible circuit layer 132. The annular region of the light region 1322. The upper light transmissive area 1322 is located below the pressing block body 14, and the upper contact point 1321 is disposed below the pressing block body 14 and located outside the upper light transmitting area 1322.

The lower base circuit layer 133 has appropriate rigidity and can provide structural support to the key housing 11, as shown in FIG. 5-1 and FIG. 6-1. The lower base circuit layer 133 has a lower transparent area 1332 and a lower connection. At a point 1331, the lower light transmission region 1332 is located below the upper light transmission region 1322, and the lower contact portion 1331 is disposed below the upper contact portion 1321 and located outside the lower light transmission region 1332.

The spacer layer 134 is disposed between the upper flexible circuit layer 132 and the lower substrate circuit layer 133; and the spacer layer 134 has a conduction channel 1341 extending between the upper contact 1321 and the lower contact 1331. As shown in FIG. 3, the pressing block body 14 has an annular abutting portion 142; as shown in FIGS. 6 and 6-1, when the block body 14 moves downward, the annular abutting portion 142 pushes down the pressing portion. 131, and further, the upper contact 1321 and the lower contact 1331 are close to each other, and are in contact with the conduction through the conduction channel 1341.

In addition, the light emitted from the light-emitting surface 161 of the light source 16 can travel upward through the lower light-transmissive region 1332, the conductive channel 1341 and the upper light-transmitting region 1322, and enter the pressing block 14 to cause the keycap 10 to emit light. The force body 12 has a light transmitting region 121, and the pressing block body 14 is made of a light transmissive material, so that the light entering the pressing block body 14 can continue to travel upward to reach the light transmitting region 121, so that the keycap 10 emits light.

As shown in FIG. 5, FIG. 5-1, FIG. 13-5 and FIG. 14-5, when the force receiving body 12 is not stressed, the pressing block body 14 is kept in contact with the pressing portion 131, so that the annular elastic body 15 can be The first pressing force P1 is applied to the pressing portion 131 by pressing the block body 14, and the applied first pressing force P1 is smaller than the preset triggering pressure of the film switch 13, so that the upper flexible circuit layer 132 and the lower bottom plate circuit are provided. The upper and lower contacts 1321, 1331 of the layer 133 remain separated, leaving the membrane switch 13 in an untriggered state.

As shown in FIG. 6, FIG. 6-1, FIG. 13-6 and FIG. 14-6, when the force receiving body 12 is subjected to an external force, the force receiving body 12 is guided by the upper guiding structure 111 to move along the Z-axis direction. The annular elastic body 15 is caused to compress the length in the Z-axis direction, and the annular elastic body 15 is compressed and shortened to generate an elastic restoring force, thereby transmitting at least a part of the pressing external force received by the force receiving body 12 to the pressing block. The body 14 further forces the pressing block 14 to be guided in the Z-axis direction by the guidance of the lower guiding structure 112, so that the pressing block 14 applies the second pressing force P2 to the pressing portion 131. When the second pressing force P2 received by the pressing portion 131 is greater than the preset triggering pressure of the membrane switch 13, the upper flexible circuit layer 132 can be deformed toward the lower base circuit layer 133, and the upper and lower contacts 1321 are allowed. The 1331 is electrically in contact with each other via the conduction path 1341 to thereby trigger the membrane switch 13.

Therefore, the button 1 of the present embodiment transmits the annular body 15 to cause the pressing block 14 to trigger the membrane switch 13, and the arrangement of the pair of metal electrodes of the mechanical trigger switch can be omitted, so that the film can be removed by the film. The structural design of the switch 13 changes the preset trigger pressure of the membrane switch, thereby reducing the pressing force required for the button operation. For example, the structural design of the membrane switch 13 allows the button to be applied during operation. The pressing force is precisely controlled at about 55 grams, and the pressing force for the user to operate the button is as expected. Moreover, in the embodiment, by the structural design of the membrane switch 13, the triggering time of the membrane switch 13 can be avoided when the keycap 10 travels to half of the predetermined pressing stroke, thereby avoiding the membrane switch 13 Early or late triggers cause inconvenience to the user.

In addition, since the button 1 of the embodiment has the annular elastic body 15, the arrangement of the non-mechanical trigger switch in the shape of a bowl-shaped rubber elastic body can be omitted, thereby effectively reducing the thickness of the button and increasing the life of the button, and It is also possible to allow the user who presses the keycap 10 to feel the stepwise pressing feel after the spring 17 is matched.

However, it should be noted that, as illustrated in FIGS. 13-1 to 13-6, the lower substrate circuit layer 133 is a rigid circuit board, and the lower contact 1331 is disposed above the hard circuit board, and the hard circuit board has a certain The degree of structural strength can carry the weight of the button housing 11 and the pressing force received by the force receiving body 12. However, not limited thereto, as shown in FIG. 14-1 to FIG. 14-6, the lower substrate circuit layer 133 is composed of at least a lower flexible circuit film 1333 and a hard substrate 1334, and the lower flexible circuit film 1333 is disposed at A lower contact 1331 is provided on the hard substrate 1334 and above the lower flexible circuit film 1333. The rigid bottom plate 1334 has a certain degree of structural strength, and can carry the lower flexible circuit film 1333, the weight of the key housing 11 and the pressing external force received by the force receiving body 12.

In the present embodiment, as shown in FIGS. 13-3 and 14-3, the upper contact 1321 of the upper flexible circuit layer 132 is composed of at least a plurality of separate upper electrode units 1321a, and a plurality of separate upper electrodes. The electrode units 1321a are spaced apart from each other and disposed around the periphery of the upper transparent light-emitting region 1322, thereby facilitating the circuit layout of the upper flexible circuit layer 132. However, not limited thereto, as shown in FIG. 13-2 and FIG. 14-2, the upper contact 1321 of the upper flexible circuit layer 132 is composed of at least a single annular upper electrode 1321b, and the annular upper electrode 1321b. The closed annular body is disposed around the periphery of the upper transparent light-emitting region 1322, so that the circuit layout of the upper flexible circuit layer 132 is completed.

Second embodiment

Compared with the above embodiment, the present embodiment omits the arrangement of the force receiving body and the button housing, and guides the up and down movement of the keycap by using a guiding mechanism such as a scissor foot mechanism. More specifically, as shown in FIG. 7 to FIG. 12-1, the button 1 of the present embodiment includes a keycap 10, a guiding mechanism 110, a membrane switch 13, a pressing block 14, an annular elastic body 15, and a light source. 16. The pressing block 14 is located below the keycap 10 and has an internal cavity for receiving the elastomer lower portion 152 of the annular elastic body 15. Further, as shown in FIG. 9, the surface of the cavity of the inner cavity of the pressing block 14 is formed with a guiding surface 1411 for guiding the annular elastic body 15 to be substantially vertically compressed when the annular elastic body 15 is pressed. length. As shown in FIG. 11 and FIG. 12, the annular elastic body 15 is, for example, a coil spring, and the elastic body upper portion 151 and the elastic body lower portion 152 abut against the keycap 10 and the pressing block body 14, respectively, so that when the keycap 10 is When the external force is pressed, the guiding mechanism 110 guides the keycap 10 to move downward, and causes the annular elastic body 15 to be compressed and shortened, so that at least a part of the pressing external force received by the keycap 10 is transmitted to the pressing block 14. The pressing block 14 is pressed against the pressing portion 131.

Furthermore, as shown in FIGS. 11-1 and 12-1, the upper flexible circuit layer 132 of the membrane switch 13 has an upper transparent region 1322 and an upper contact 1321, and the upper transparent region 1322 is located at the pressing block 14. Below, the upper contact 1321 is disposed under the pressing block 14 and located outside the upper transparent region 1322, so as to facilitate the circuit layout of the flexible circuit layer 132. As shown in FIG. 11-1 and FIG. 12-1, the region of the light-emitting surface 161 of the light source 16 is smaller than or equal to the region of the upper light-transmitting region 1322, so that the light provided by the light-emitting surface 161 can be output through the upper light-transmitting region 1322. . As shown in FIG. 13-1 and FIG. 13-6, the pressing portion 131 of the membrane switch 13 is located above the upper contact 1321, so that the upper contact 1321 can be moved when the pressing force is easily received, and the upper contact 1321 can be made electrically. Contact 1331 under sexual contact. The spacer layer 134 is disposed under the upper flexible circuit layer 132 to facilitate separation of both the upper flexible circuit layer 132 and the lower substrate circuit layer 133. As shown in FIGS. 13-5 to 13-6 and FIGS. 14-5 to 14-6, the conduction channel 1341 of the spacer layer 134 of the membrane switch 13 is located below the upper contact 1321, so that the pressing portion 131 is facilitated. When the force is applied, the upper contact 1321 is passed through to make electrical contact with the lower contact 1331. The lower substrate circuit layer 133 is disposed under the spacer layer 134 and has a lower transparent region 1332 and a lower contact 1331. The lower transparent region 1332 is located below the upper transparent region 1322, and the lower contact 1331 is disposed at the upper contact 1321. The lower portion and the region outside the lower light transmitting region 1332 facilitate the circuit layout of the lower substrate circuit layer 133. As shown in FIG. 11-1 and FIG. 12-1, the region of the light-emitting surface 161 of the light source 16 is smaller than or equal to the region of the lower light-transmitting region 1332, so that the light provided by the light-emitting surface 161 can be output through the lower light-transmitting region 1332. .

When the embodiment is implemented, as shown in FIG. 11 to FIG. 11-1, when the keycap 10 is not stressed, the pressing block 14 keeps contacting the pressing portion 131 to apply the first pressing force P1', when the first pressing When the pressure P1' is smaller than the trigger pressure of the membrane switch 13, the spacer layer 134 is separated from the upper contact 1321 and the lower contact 1331 to keep the upper contact 1321 and the lower contact 1331 separated, and the membrane switch 13 is left. Trigger status.

Further, as shown in FIG. 12 to FIG. 12-1, when the keycap 10 is subjected to an external force, the keycap 10 can be guided downward by the guiding mechanism 110 to urge the annular elastic body 15 to be compressed and become elastic. The restoring force is thereby transmitted to at least a part of the pressing external force to the pressing block body 14, so that the pressing block body 14 applies the second pressing force P2' to the pressing portion 131, and if the second pressing force P2' is larger than the film type switch 13 The triggering pressure, the upper flexible circuit layer 132 is deformed to the bottom substrate circuit layer 133, and the upper and lower contacts 1321, 1331 are electrically connected to each other via the conduction channel 1341, so that the trigger of the thin film switch 13 is achieved.

In summary, the keycap of the present invention mainly maintains a pressing force on the membrane switch by an annular elastic body such as a coil spring and a pressing block to maintain a pressing force when the pressing force is applied. When the trigger pressure is lower than the diaphragm switch, the membrane switch is in an untriggered state. Otherwise, when the applied pressure is greater than the trigger pressure of the membrane switch, the membrane switch is triggered. Thus, the button of the present invention can be formed by a thin film type. The structural design of the switch, for example, by changing the size or shape of the spacer layer in the membrane switch, to change the preset trigger pressure of the membrane switch, thereby reducing the pressing force required for the button operation, for example, the present invention can accurately The pressure is controlled at about 55 grams, allowing the user to operate the buttons with less effort. Moreover, the keycap can be designed to move the keycap down to half the pressing stroke. In addition, the invention can also adopt the structural design of the membrane switch, so that the triggering time of the membrane switch can prevent the trigger of the membrane switch from being triggered too early or too late when the keycap travels to half of the predetermined pressing stroke. inconvenient.

The above embodiments are merely illustrative of the principles and effects of the invention and are not intended to limit the invention. Modifications and variations of the above-described embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be as defined in the scope of the invention.

1‧‧‧ button

10‧‧‧Key Cap

11‧‧‧Key housing

110‧‧‧Guiding agency

111‧‧‧Upper guiding structure

112‧‧‧Lower guiding structure

113‧‧‧Upper key housing

114‧‧‧Bottom key case

12‧‧‧ Forces

121‧‧‧Light transmission area

13‧‧‧membrane switch

131‧‧‧ Pressing Department

132‧‧‧Upper flexible circuit layer

1321‧‧‧Contacts

1321a‧‧‧Upper electrode unit

1321b‧‧‧Ring upper electrode

1322‧‧‧Upper light transmission area

133‧‧‧Bottom board circuit layer

1331‧‧‧Contacts

1332‧‧‧lower light transmission zone

1333‧‧‧Under flexible circuit film

1334‧‧‧hard bottom plate

134‧‧‧ spacer

1341‧‧‧ conduction channel

14‧‧‧ Pressing the block

141‧‧‧ Elastomer guiding structure

1411‧‧‧Guide

142‧‧‧Circular abutment

15‧‧‧Aperture Elastomer

151‧‧‧ Upper elastomer

152‧‧‧ Lower elastomer

153‧‧‧Internal cavity

16‧‧‧Light source

161‧‧‧Glossy

17‧‧‧Hand spring

P1, P1’‧‧‧ first pressure

P2, P2’‧‧‧ second press pressure

Figure 1 is a schematic illustration of a first embodiment of a button of the present invention.

Figure 1-1 is a partial assembly diagram of the button shown in Figure 1.

2 is an exploded view of the components of the first viewing angle of the button shown in FIG. 1.

Figure 3 is an exploded view of the components of Figure 1 taken at a second viewing angle.

Figure 4 is a top plan view of the button shown in Figure 1.

Fig. 5 is a schematic view showing the button shown in Fig. 4 taken along the line I-I to indicate that the button is not pressed.

Figure 5-1 is a partial enlarged view of the area indicated by the symbol A shown in Figure 5.

Fig. 6 is a schematic view showing the button shown in Fig. 4 taken along the line I-I to show the pressing of the button.

Figure 6-1 is an enlarged view of the area indicated by symbol B shown in Figure 6.

Figure 7 is a schematic view of a second embodiment of the button of the present invention.

Figure 8 is an exploded view of the components of the first viewing angle of the button shown in Figure 7.

Figure 9 is an exploded view of the components of the second viewing angle of the button shown in Figure 7.

Figure 10 is a plan view of the button shown in Figure 7.

Figure 11 is a schematic view showing the button shown in Figure 10 taken along line II-II to indicate that the button is not pressed.

Fig. 11-1 is an enlarged view of a region indicated by the symbol C shown in Fig. 11.

Fig. 12 is a schematic view showing the button shown in Fig. 10 taken along the line II-II to show the pressing of the button.

Fig. 12-1 is an enlarged view of a region indicated by symbol D shown in Fig. 12.

Figure 13-1 is a schematic view showing the first embodiment of the membrane switch of the button of the present invention.

Figure 13-2 is an exploded view of the first structural example of the membrane switch shown in Figure 13-1.

Figure 13-3 is an exploded view of a second structural example of the membrane switch shown in Figure 13-1.

Figure 13-4 shows a top view of the membrane switch shown in Figure 13-1.

Figure 13-5 shows a schematic diagram of the membrane switch shown in Figure 13-4 taken along the line IV-IV to show that the membrane switch is in an untriggered state.

13-6 is a schematic diagram showing the film switch of FIG. 13-4 being cut along the IV-IV line to indicate that the membrane switch is in a triggered state.

Figure 14-1 is a schematic view showing a second embodiment of the membrane switch of the button of the present invention.

Figure 14-2 is an exploded view of the first structural example of the membrane switch shown in Figure 14-1.

Figure 14-3 is an exploded view of a second structural example of the membrane switch shown in Figure 14-1.

Figure 14-4 is a top plan view of the membrane switch shown in Figure 14-1.

Figure 14-5 shows a schematic diagram of the film switch shown in Figure 14-4 taken along line V-V to show that the membrane switch is in an untriggered state.

14-6 is a schematic diagram showing the film switch in the trigger state along the V-V line segment shown in FIG. 14-4.

Claims (16)

A button includes: a button housing having an upper guiding structure and a lower guiding structure; a force receiving body, the force receiving system being movably embedded in the upper guiding structure; a membrane switch The film-type open relationship has a pressing portion, an upper flexible circuit layer and a lower bottom circuit layer, and the upper flexible circuit layer and the lower bottom circuit layer respectively have an upper contact and a lower contact, wherein When the pressing portion receives a pressing force greater than a triggering pressure, the membrane switch is in a triggered state; a pressing block body, the pressing block system is movably embedded in the lower guiding structure and remains in contact with the pressing portion; An annular elastic body disposed in the button housing and contacting the force receiving body and the pressing block body respectively, wherein the annular elastic system is used when the force receiving body is not stressed The pressing block applies a first pressing force to the pressing portion. If the first pressing force is less than the triggering pressure, the membrane switch is in an untriggered state; when the receiving body is subjected to a pressing external force, The force receiving body is guided by the upper guiding structure to move along a Z-axis direction, causing the annular elastic body to compress the length along the Z-axis direction, thereby forcing the pressing block body to be guided by the lower guiding structure along the Moving in the Z-axis direction to apply a second pressing force to the pressing portion by the pressing block, and if the second pressing force is greater than the triggering pressure, the upper flexible circuit layer faces the lower bottom circuit layer The deformation causes the upper and lower contacts to electrically contact each other to trigger the membrane switch. A button includes: a button cap; a button housing having an upper guiding structure and a lower guiding structure, the button housing being disposed under the keycap; a force receiving body, the force The system is movably embedded in the upper guiding structure; a pressing block body, the pressing block system is movably embedded in the lower guiding structure; an annular elastic body, the annular elastic system is disposed on the button shell In the body, the annular elastic body has an upper portion of the elastic body and a lower portion of the elastic body, and the upper portion of the elastic body and the lower portion of the elastic body respectively abut the force receiving body and the pressing block body; a film type switch, the film type The open relationship has a pressing portion, an upper flexible circuit layer, a spacer layer and a lower substrate circuit layer, wherein the upper flexible circuit layer is disposed under the button housing, and the upper flexible circuit layer has an upper transparent layer a light area and an upper contact point, the upper light transmission area is located below the pressing block body, and the upper contact point is disposed under the pressing block body and located outside the upper light transmitting area, the pressing part is Located at the upper joint The spacer layer is disposed under the upper flexible circuit layer, the spacer layer has a conductive channel, the conductive channel is located below the upper contact; the lower substrate circuit layer is disposed under the spacer layer, and the The lower backplane circuit layer has a lower transparent area and a lower contact point, the lower transparent area is located below the upper transparent area, and the lower contact is disposed below the upper contact and outside the lower transparent area And a light source, the light source having a light emitting surface, the light emitting surface providing a light, the light emitting surface area is less than or equal to the area of the upper light transmitting area, so that the light is output through the upper light transmitting area Wherein, when the force receiving body is not stressed, the pressing block body contacts the pressing portion to apply a first pressing force, and when the first pressing force is less than a triggering pressure, the spacing layer makes the upper pressing Keeping the point and the lower contact separate, the film switch is in an untriggered state; wherein, when the force receiving body is subjected to an external force, the force receiving body is guided by the upper guiding structure to move downward, thereby causing the Ring elasticity Compressing becomes shorter, and at least a part of the pressing external force is transmitted to the pressing block body, so that the pressing block body applies a second pressing force to the pressing portion, and the second pressing force is greater than the triggering pressure, so that The upper flexible circuit layer is deformed toward the lower backplane circuit layer, and the upper and lower contacts are electrically connected to each other via the conductive via to trigger the thin film switch. The button of any one of claims 1 to 2, wherein the lower back circuit layer is a hard circuit board, and the lower contact is disposed above the hard circuit board, the hard circuit board The weight of the button housing and the pressing external force can be carried. The button according to any one of claims 1 to 2, wherein the lower substrate circuit layer comprises a lower flexible circuit film and a hard substrate, and the lower flexible circuit film is disposed on the hard substrate. The lower contact is disposed above the lower flexible circuit film, and the hard bottom plate can carry the weight of the button housing and the pressing external force. The button of any one of claims 1 to 2, wherein the button housing has an upper key housing and a lower key housing, and the upper guiding structure is disposed on the upper key housing, the lower guiding structure The system is disposed on the lower key housing. The button of any one of claims 1 to 2, wherein the pressing block further has an elastic guiding structure, the annular elastic body having an internal cavity, the elastic guiding structure Substantially extending vertically into the internal cavity, the annular elastomer is guided by the elastomeric guiding structure to substantially compress the length vertically when the annular elastomer is stressed. The button of claim 6, wherein the elastic guiding structure is a cylinder, and a peripheral contour of the cylinder is substantially equal to a cavity contour of the inner cavity, and the cylinder is disposed on the pressing The block body faces away from the side of the pressing portion, and the outer peripheral side surface of the cylindrical body constitutes a guiding surface for guiding the annular elastic body to substantially vertically compress the length when the annular elastic body is stressed. The button of claim 7, wherein the annular elastic system is a coil spring, the lower end of the coil spring is sleeved on the cylinder, and the half length of the coil spring is greater than the cylinder The extension length of the body. The button of claim 6, wherein the elastic guiding structure is an upright columnar body, and a peripheral contour of the upright column body is substantially equal to a cavity contour of the inner cavity, the upright column shape The system is disposed on a side of the pressing block body facing away from the pressing portion, and an outer peripheral side surface of the upright column body constitutes a guiding surface for guiding the annular elastic body to be substantially vertically when the annular elastic body is stressed Compressed length. A button includes: a key cap; a guiding mechanism that guides the key cap to move up and down; a pressing block body, the pressing block system is located below the key cap; an annular elastic body, the The annular elastic body has an upper portion of the elastic body and a lower portion of the elastic body, and the upper portion of the elastic body and the lower portion of the elastic body respectively abut the key cap and the pressing block body; a membrane switch having a film-opening relationship a pressing portion, an upper flexible circuit layer, a spacer layer and a lower substrate circuit layer, wherein the upper flexible circuit layer has an upper transparent region and an upper contact, the upper transparent region is located at the pressing block The upper contact is disposed under the pressing block and located outside the upper transparent region, the pressing portion is located above the upper contact; the spacer is disposed on the upper flexible circuit layer The spacer layer has a conduction channel, and the conduction channel is located below the upper contact; the lower substrate circuit layer is disposed under the spacer layer, and the lower substrate circuit layer has a lower transparent region and a lower contact point. Lower light transmission position Below the upper transparent region, the lower contact is disposed under the upper contact and outside the lower transparent region; and a light source having a light emitting surface, the light emitting surface providing a light. The area of the light-emitting surface is smaller than or equal to the area of the upper light-transmitting area, so that the light is outputted through the upper light-transmitting area; wherein, when the keycap is not stressed, the pressing block remains in contact with the pressing Applying a first pressing force, if the first pressing force is less than a triggering pressure, the spacing layer keeps the upper contact and the lower contact separate, so that the membrane switch is in an untriggered state; When the keycap is subjected to an external force, the keycap is moved downward by the guiding mechanism to urge the annular elastic body to be compressed, and at least a part of the pressing external force is transmitted to the pressing block. The pressing block applies a second pressing force to the pressing portion. If the second pressing force is greater than the triggering pressure, the upper flexible circuit layer is deformed toward the lower bottom circuit layer, and the upper conductive layer is allowed to pass through the conductive channel. The next contact is electrically connected to each other Sexual contact, the trigger of the membrane switch is achieved. The button of claim 2, wherein the upper contact comprises a plurality of separate upper electrode units, and the plurality of separate upper electrode units are spaced apart from each other and disposed adjacent to the upper portion. The position around the light transmission area. The button of claim 2, wherein the upper contact comprises a single annular upper electrode, and the annular upper electrode is a closed annular body, and is disposed adjacent to the upper transparent light. The location around the area. The button of any one of the preceding claims, wherein the light can travel upward through the lower light transmitting region, the conductive channel and the upper light transmitting region to enter the pressing block. In the body, the force system has a light transmitting region, and the pressing block system is made of a light transmissive material, wherein the light entering the pressing block can continue to travel upward to reach the light transmitting region, so that the The key cap shines. The button of claim 2, wherein the keycap moves up and down according to a predetermined pressing stroke, and the triggering time of the membrane switch travels to the predetermined time in the keycap When you press half of the stroke. The button of claim 2, wherein the button further includes a hand spring that can be coupled to the concave and convex structure on the side of the force receiving body when the force body moves downward. The feel spring provides a stepwise elastic resistance to the downward movement of the force receiving body. The button of claim 1, wherein the pressing portion is an annular body, and the pressing block further has an annular abutting portion, the annular abutting portion. It is intended to interfere with the ring.