TWI223295B - Light-emitting type pushbutton switch - Google Patents

Abstract

A light-emitting type pushbutton switch is disclosed, which comprises a circuit board, an elastic element, a light source, a first conductor part and a second conductor part. The elastic element is installed on the circuit board, and the elastic element and circuit board together define a space. The light source is installed by one side of the circuit board. In addition, the first conductor part is installed on the elastic element and located in the space. The second conductor part is installed on the circuit board and located in the space. When the elastic element is pressed by the external force, the first conductor part contacts the second conductor part electrically.

Description

Description of the invention (1) The technical field to which the invention belongs: The present invention relates to a light-emitting button with a simplified structure of the road = key, off, especially related to _ and can be convenient for users in Heiluyu: 'can effectively save materials and Space, switch. Illuminated J-keys that can be used everywhere and can increase the beauty. Prior technology: Firstly, read the first picture of tea, which is a schematic diagram showing the structure. As shown in the figure, the opening type is pressed to form M, a hollow elastic element, and 20% of an H circuit cap C. Supporting board B uses "the entire key switch of the branch building and the key outside: 4 membrane circuit assembly M is located above supporting board B, & light guide plate χ = film circuit assembly M, where light guide plate χ has a hole The structure H enables the elastic element E to contact the thin-film circuit assembly M when it is pressed by an external force. The light source L is arranged on one side of the light guide plate X, and a light beam is emitted into the light guide plate X 'and the light guide plate X The light is directed to the upper keycap C (as indicated by the arrow).

Generally speaking, the thin film circuit assembly M is composed of an elastic upper film name 1, a lower film M 2 and a spacer element μ 3, and the spacer element μ 3 is used to space the upper film M 1 and the lower film μ 2. A space 20 is defined together with the upper film M 1 and the lower film μ 2. In addition, a first conductive portion P1 is provided on the bottom surface of the upper film M1 and a second conductive portion P2 is provided on the top surface of the lower film M2. The first conductive portion P1 and the second conductive portion P2 are located in the space 20 and are connected to each other. A printed circuit (not shown) provided on the upper film M1 and the lower film M2,

0798-10315TW (Nl); C03042; TKLIN.ptd Page 5 1223295

V. Description of the invention (2) In a normal state, the first conductive portion P1 and the second conductive portion P2 remain separated and are in an open state. As shown in FIG. 1, the hollow elastic element E is disposed above the thin film circuit assembly M and forms a space 10 with the thin film circuit assembly M, wherein the elastic element E has a protruding portion E 1, and the protruding portion E 1 is located in the center of space 10. In addition, a keycap C is connected above the elastic element E, so that when the user presses the upper keycap C, the central protruding portion E1 of the elastic element E presses the upper film M1 downward and makes the first conductive The portion P1 is in electrical contact with the second conductive portion P2 on the top surface of the lower film M2 and is in a conducting state. In view of the fact that the conventional light-emitting button structure is too complicated, the present invention provides a light-emitting button with a simplified structure, which can greatly save costs and reduce the space of the structure. SUMMARY OF THE INVENTION A light-emitting key switch includes a circuit board, an elastic element, a light source, a first conductive portion and a second conductive portion. The elastic element is disposed on a circuit board, and the elastic element and the circuit board define a space together. The light source is disposed on one side of the circuit board, and a light is transmitted through the light source to pass through the space. Furthermore, the first conductive portion is disposed on the elastic element and is located in the aforementioned space.

Inside. The second conductive portion is disposed on the circuit board and located in the above space, wherein the first conductive portion is in electrical contact with the second conductive portion when the elastic element is pressed by external force. With the present invention, it is convenient for users to use in dark places, and the beauty of the keys can be increased. Implementation:

0798-10315TWF (Nl); C03042; TKLIN.ptd

1223295 V. Description of the invention (3) First embodiment Please refer to FIG. In this embodiment, in the first embodiment L, a base plate A, and a branch floor plate B of the known beta A, the key switch mainly includes a light source E and a keycap C. Upper plate — β; road board N,-hollow elastic element key structure 'X circuit board' stands on: = bottom plate A to support the whole In addition, the aforementioned hollow elastic element teeth and light transmission; circuit The board N forms a space 丨 0. 糸 δ is placed above the circuit board N, and has a protrusion at the center position 10 between the bowl-shaped elastic element E as shown in the figure, and is located in the empty space,- Among them, Yu = table uses P1 and P2, which are located in space 10 and printed on the circuit f. A conductive part: electricity; m ', P2' system, connection set on the circuit board N. Power on: = in normal state The lower first conductive part E2 and the second Motang road (not P2 series remain disconnected and are in an open state. "" V electric part P1, connection-keycap c, so as to act; pressure :: above two E In addition, when the central protruding portion ㈣ of the elastic element E is obtained, the electric portion E2 will be electrically connected to the second conductive portion ρ ,, p2, and A2. Especially, the smoke of the present invention is also in a temple state. . Set on the bottom plate a in position; Λ 之 路 '板 == 开: the center has an opening 30, the positive needle is at *, and the middle hole 3 in the support plate B Inside. In addition, the keys are shown) such as letters or numbers. In: and: area 'can define a symbol (not shown in the figure (LED), but the light source L is-the light-emitting diode female, and the light emitted above (as shown in Figure 2) Arrow direction

〇798-10315TO (Nl); C03042; TKLIN.ptd Page 7 Fiber 1223295 V. Description of the invention (4)), so that the light can pass through the opening 30 through the upper circuit board N and the elastic element E 'to make the key Produces a glowing effect, so that the symbols defined on the keycap C can be seen clearly in a dark environment. Among them, the circuit board N can also be a conventional polyester polyester film material. In order to avoid excessive depression under the opening 30 when the button is pressed, the conventional film of the circuit board n in the present invention is The thick and elastic element E can also be made of a light-transmitting material so that light can penetrate the elastic element E and have a luminous effect. Second Embodiment Please refer to FIGS. 3a and 3b at the same time. The two figures are schematic diagrams of the embodiment of the table. In this implementation, first

Base plate A, support plate B, a circuit board N, and a hollow bracket-light shame, -... ^ The domain switch mainly includes an elastic element E and a keycap c. Bu, f 〆 One is built to support the entire key structure, and the electric = stand board is used above the base plate A, the aforementioned ... bullet: two-way, the board N forms a space 10. Afternoon, "Place on the circuit board N" and make it with the circuit and have transparency. As shown in the figure,-the first-V ^ E1 'is located at the end of the center of the space 10. In addition, The part E2 is provided on the top of the protruding part ^ among which the second conductive part P1 is provided with second conductive parts ρ,, p2, and 10 on the surface, and the second conductive Λ is printed on the circuit board N and is located in the space. The circuits T1 and T2 (such as the first and the second P2 'are respectively connected to the printed P1, P2 on the circuit board N, and the phantom are separated). In a normal state, the second conductive part is cut off and is in an open state.

0798-10315W (Nl); C03042; TKLIN. Page 8Ϊ223295 V. Description of the invention (5) Use to connect-the keycap C above the elastic element E, so-to make the following: when the keycap C above the pad , The central protruding portion E1 of the elastic element E is moved to $, and the aforementioned first conductive portion is electrically connected to the second conductive portion according to the second conductive state. In particular I, the light-emitting light source / light source L 'of the present invention is disposed on the circuit board N, and is located in the space 10 similarly to the second conductive σPι, P2'. In one example, the light source L is a light emitting diode (LED). As shown in Fig. 3b: Seeing from the direction Γ a a ΐ ", the position of the light source L in the space 10 is biased toward the first ¥ electric part E 2 so that when the 鐽 n is pressed, the first conductive part PI is self-etched When the P1, P2 and Thunder m switches, the first P2 can be electrically connected without being interfered by the light source L. This light trace L is further provided with a printed circuit T3 on the 浐 μ plate N to connect the light source L, thereby driving the light side to emit light (as shown by the arrow direction in FIG. 3a). The first line can pass through the elastic element E, so that the key is generated-the effect of light emission. Among them, the above-mentioned circuit board N can also be a conventional polyester film: b. What two: two 1ar) material 'Since there is a support floor β 幵 y made of metal for stable support, the thickness of the circuit board N need not be the same as that of the circuit board N made of polyester film in the embodiment. 〇 = ';. In summary, the present invention provides a light-emitting button switch, which saves cost and space, and is convenient for users in the dark place. Nine uses and increase the beauty. Although the above is disclosed in the preferred embodiment through the present invention, but the scope of the invention is limited. Anyone skilled in this art can use it to clarify the spirit and scope. The change of the toilet is not inseparable from the hair, so the hair

0798 -10315TW (Ν1); C03042; TKLIN. P t d p. 9 1223295

0798-10315T ^ VF (N1); C03042; TKLIN. Ptd Page 10 1223295 Brief description of the diagram The first diagram is a schematic diagram of a conventional key switch structure; the second diagram is a schematic diagram of the first embodiment of the present invention Figures 3a and 3b are schematic views showing a second embodiment of the present invention. Explanation of symbols: 1 0 to space 3 0 to opening A to bottom plate B to support plate C to key cap E to elastic element E1 to protruding portion E2 to first conductive portion L to light source M to thin film circuit assembly N to circuit board M1 to upper film M2 to lower film M 3 to spacer element P1 to first conductive portion P2 to second conductive portion P1 ', P2' to second conductive portion X to light guide plate Η to hole structure

0798-10315TWF (Nl); C03042; TKLIN.ptd Page 11

Claims (1)

1223295 6. Scope of patent application 1.—One kind of circuit, one kind of flexibility The circuit board has a light source light-emitting board; components, with the same definition, are set to pass through the space; the key switch of the conductive part includes: the first set on the circuit board Inner space; "In the eighth aspect, wherein the elastic element and one of the sides of the circuit board t, the light source emits a light 'set in the female ^ L. The second component is a second component, and the second component is electrically connected to the second component. The circuit board is optical as described above. 3. If the light source in Shenzhong is set to 4 · If the light source in Shenshen is 5 · If the elastic element is in Shenzhong 6. If the second lead is in Shenzhong · If the elastic element is located in the space in the space, Is placed on the circuit board and is subjected to external pressure η ± Α 硪 芏, the first conductive part and the light-emitting type of the second conductive range described in item 1 above are used to hold the f plus U key switch, Between Fuhai Xianyuan, and the circuit board has the light-emitting type circuit board described in item 1 above, and is located on the air-conditioning switch, the light-emitting type diode described in item 1 in its scope . Key switch, the luminous light material described in the first item of the range. The & key switch has a light-emitting brush as described in item 1 on the circuit board. The soft key switch, as described in the first item of the range, is a matte light type key switch, and its conductive part touches. Please place a patent. Please place a patent. Please place a special + J a light. Patent is transparent. Patent printed by the Ministry of Electricity. Patent is made of rubber. 1223295 6. Scope of patent application 8. The light-emitting key switch described in item 7 of the scope of patent application, wherein the shape of the elastic element is bowl-shaped. 9. The light-emitting key switch according to item 7 of the scope of patent application, wherein the elastic element has a protruding portion, and the first conductive portion is located on the protruding portion. _ 0798-10315TWF (Nl); C03042; TKLIN.ptd Page 13