TWI252499B - Keypad and method for making the same - Google Patents

Abstract

A keypad and method for making the same, the keypad mounted on a printed circuit board (PCB) of an electrical device, comprises: a shell, a photic part, a flexible part, a switch and LED module. The LED module comprises a LED and a flexible printed circuit (FPC), wherein one end of the FPC soldered with the LED, then fixed on the flexible part and received in the photic part. Another end of the FPC soldered on the PCB having the switch fixed thereon. The making method includes the following steps: providing a shell; providing a photic part; providing a flexible part; providing a switch and a LED module; mounting all of the components together on a printed circuit board.

Description

1252499 V. INSTRUCTION STATEMENT α) - [Technical Field] The present invention relates to a key and a method of manufacturing the same, and more particularly to a key applied to an electronic device and a method of manufacturing the same. [Prior Art] The prior art related to the present invention is described in U.S. Patent No. 5,7,7,7,5,5, issued May 5, 1998, which discloses a button, including a stud, and a illuminating Layer, excitation layer and transparent layer. The backlight is provided by a light-emitting layer, and the light-emitting layer covers the excitation layer and the circuit board. The excitation layer is provided with a stud, which passes through a hole in the illuminating layer and extends to a transparent layer on the surface of the keyboard. The studs on the excitation layer provide a light directing function that directs light away from the luminescent layer. However, since the studs are soldered to the same circuit board, when a button is actuated, the buttons can only be lit or not lit, so that a single button cannot be made to emit light. 【content】

SUMMARY OF THE INVENTION An object of the present invention is to provide a button for making a single button illuminating function with a button actuation and a method of manufacturing the same. X The button assembly of the present invention is disposed on a circuit board of an electronic device, and includes a housing, a light guiding t body, an elastic actuating member, a light emitting module and a switch. The light-emitting module comprises a light-emitting diode and a flexible circuit board, wherein one end of the flexible circuit board is soldered to the light-emitting diode, and is fixed to the light-guiding body after being fixed to the elastic actuating member, and the other end is soldered with a switch. The circuit board is soldered and the switch is actuated by a resilient actuating member. The button manufacturing method of the present invention comprises the following steps: Step 1: providing a housing; Step 2: providing a light guiding body;

I Page 5 1252499

Five 'invention descriptions (2) Step three steps four plates; provide elastic actuators; provide lighting modules, including light-emitting poles and flexible circuits, step five steps to provide switches, start, and set up to electrician strong': The above-mentioned components are sequentially assembled on the circuit board of the sub-cloth, in which the light-emitting two-weld, -, also. Into the end of the line, and the elastic actuator is fixed and then received; the other end of the flexible circuit board is connected to the circuit board with the switch connected, and the soft, ί: piece is activated. Turning on the 'switch is elastically actuated compared to the prior art, the advantages of the present invention are: one pole body and the flexible circuit board are integrated, and the ^ ^ m ^ ^ ^ wood f-circuit board electronic device, The spring road plate is connected. The elastic actuator actuates the switch ^ = the light is pressed by the pressing of the previous button to achieve a single button light. [Embodiment] Referring to the first to fourth figures, the button (not poor) of the present invention is set on the circuit board 7 of the electronic device (not shown) (for the figure 1 A part of the circuit board ′′ includes a housing 1 , a light guide body 2 housed in the housing 1 , an elastic actuator 3 that is received in the light guide body 2 , a switch 6 , and a light-emitting module (not labeled). The housing 1 includes an arcuate surface 1 , a receiving space 贯穿 extending through the housing 1 , an outer wall 12 , and an opening 〇 2 设 disposed on the outer wall 12 and communicating with the receiving space 11 . The light guide body 2 is received in the accommodating space 11 of the housing 1, and includes a main body portion 2, a fastening portion 2 2 disposed along a lower end edge of the main body portion 2 1 and a receiving cavity 23, wherein the main body

Page 6 1252499 V. Description of the Invention (3) • The portion 2 1 includes a pressing surface 2 1 〇, a side wall 2 1 1 and a slot 2 1 2 provided on the side wall 2 1 1 , and the two ends of the receiving cavity 2 3 are respectively provided The height-adjusting portion of the elastic actuator 3 includes an actuating portion 31 and a strut 3 2 ' disposed at both ends of the actuating portion 31. The actuating portion 31 is provided with a retaining post 30 and is reversely actuated. The portion 31 has an upper surface 310 and a lower surface 311. The light emitting module includes a light emitting diode 4 and a flexible circuit board 5 having a substantially u shape. The flexible circuit board 5 includes first and first bent portions 50 and 51. The first and second bent portions 5 and 5 are respectively provided with first and second welded portions 5 0 1 and 5 1 . 0, wherein the first bending portion 50 is further provided with a holding hole 500. The upper portion of the switch 6 is provided with a button 60 and a guide portion 61 provided at the bottom thereof. The circuit board 7 is provided with first and second conductive paths 70, 71. The button manufacturing method of the present invention mainly comprises the following steps: Step 1: providing a housing 1 comprising an arcuate surface 1 , a receiving space 1 1 extending through the housing 1 , an outer wall 12 , and an opening 120 disposed on the outer wall 12 . . Step 2: A light guide body 2 is provided. The light guide body 2 includes a main body portion 21, a fastening portion 22 disposed along a lower end edge of the main body portion, and a receiving cavity 23. Step 3: providing an elastic actuating member 3, the elastic actuating member comprising: an actuating portion 31; and a strut 32 disposed at two ends of the actuating portion 31, and the actuating portion 31 is further provided with a retaining post 30. Step 4: providing a light-emitting module, comprising a light-emitting diode 4 and a flexible circuit board 5, wherein the flexible circuit board 5 includes first and second bent portions 5, 51, and first and second bent portions 50, 51 The first and second welded portions 5 0 1 and 5 1 〇 are respectively provided on the upper portion, and the first bent portion 50 is further provided with a retaining hole 500. y |^5^ The switch 6' has a button 60 on the upper portion and a guide portion 6 1 at the both ends of the bottom.

1252499

Sub-assembled together and assembled to electricity. V. INSTRUCTIONS (4) Step 6···························· The step 6 includes the following steps: Step A: The elastic actuator 3 receives the recognition and the purpose τ. ^ 1 The gentry is also in the receiving cavity 23 of the light guiding body 2, and the upper surface 3 I 0 of the actuating portion 3 I is abutted against the male w and the upper part of the cutting chamber 23 is the upper part of the receiving chamber 23 A bending portion 50 is fixed to the first bending portion 5 by the fixing hole 5 〇 () of the bending portion 50 and the fixing column 30 of the elastic actuator 3 is fixed. The second soldering portion 5 j 上 on the second bent portion 5 1 of the flexible wiring board 5 and the first and second conductive paths 70 on the wiring board 7 1 phase welding. Step β. The guiding body 2 is housed in the receiving space m of the casing 1. The slot 212 is aligned with the opening 12 of the casing 1 to form a lateral space. The light-emitting diode 4 is soldered to the flexible circuit board 5, and the front end of the first bent portion 50 of the flexible circuit board 5 is integrated into the receiving cavity 23 of the light guide body 2 through the lateral space. Step C: The upper portion of the switch 6 The button 6 接触 is in contact with the lower surface 311 of the actuating portion 3 j of the elastic actuator 3, and the guiding portion 61 at both ends of the switch 6 is welded to the first t-conducting path 70 of the circuit board. In use, the pressing surface 210 of the light guiding body 2 is pressed, so that the light guiding body 2 presses against the elastic actuator 3, and the actuating portion 31 elastically deforms the button 6 抵 of the pressing switch 6, and the switch 6 is turned on to make the flexible circuit board 5 The light-emitting diode 4 is turned on and emitted, and is conducted through the light guide body 2 to cause the surface of the button to emit light. When the pressure is no longer pressed, the elastic actuator 3 is elastically restored, the switch 6 is turned off, and the light-emitting diode 4 is not illuminated, so that the button does not emit light. Compared with the prior art, the invention has the advantages that the invention emits light

Page 8 1252499 V. Description of the Invention (5) The diode is integrated with the flexible circuit board, and the flexible circuit board is connected to the circuit board of the electronic device. The resilient actuating member actuates the switch such that the light emitting diode can be illuminated with the pressing of a single button, enabling a single button to illuminate when pressed. In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the invention, and is not intended to limit the scope of the invention. Equivalent modifications or variations in accordance with the spirit of the invention are intended to be included within the scope of the following claims.

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BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a three-dimensional combination of the keys of the present invention. The second drawing is a combination of the other keys of the present invention. The second figure is a three-dimensional decomposition diagram of the button of the present invention. The fourth figure is a different view of the button of the present invention. [Main component symbol] Housing 1 Curved surface 10 Housing space 11 Outer wall 12 Opening 120 Light guide body 2 Main body part 21 Side wall 211 Pressing surface 210 Slotted 212 Fastening part 22 Containing cavity 23 Pad Southern 230 Elastic actuator 3 Retention Column 30 Actuating portion 31 Upper surface 310 Lower surface 311 Pillar 32 Light-emitting diode 4 Flexible wiring board 5 - - Bending portion 50 Holding: ί hole 500 First welded portion 501 Second bent portion 51 Second welded portion 510 switch 6 button 60 lead portion 61 circuit board 7 first conductive path 70 second conductive path 71

Claims (1)

1252499 The scope of patent application can be set on the circuit board of an electronic device, including 1 · a button housing; a light guide body; an elastic actuating member; a light-emitting group, including light; a polar body and a flexible circuit board, and &Off' is soldered to the circuit board of the speed electronic device, and is actuated by the elastic actuating member; wherein one end of the flexible circuit board is connected with the light emitting diode, and is fixed to the elastic moving member to be valleyd on the conductor Inside, the other circuit board is in phase connection. The outer casing of the casing is provided with an outer wall of the accommodating space, wherein the main body portion of the light guide body is provided. The curved surface of the button as described in claim 1 and the accommodating space opening through the casing. 3. As shown in the second paragraph of the patent application scope, the length γ is the main part, the fastening part provided along the lower end edge of the main body part, the main body part has a pressing surface and a receiving cavity, and the two ends of the receiving cavity are provided. And the elastic actuating member=; the upper portion of the receiving cavity is provided with the outer wall of the casing. 4. The button according to item 3 of the patent application scope, wherein the component comprises the light receiving body in the receiving cavity: The two pillars on the elastic actuating plate and the two disposed on the actuating portion are supported on the line 5. The button described in item 4 of the patent application is slated by the master. The board is provided with a flexible circuit two soldering portion respectively corresponding to the light emitting diode and the circuit board, and the flexible circuit board is soldered with the light emitting diode - the first and the ___ version of the end is also set to 1252499. There is a fixing hole which is fixed to the fixing column on the elastic actuator. 6 - a button manufacturing method, the button group is set on the circuit board of the electronic device, comprising the following steps: Step 1: providing a housing; Step 2: providing a light guiding body; Step 3: providing an elastic actuator; Step 4 Providing a light-emitting module; Step 5: providing a switch; and Step 6: assembling the above components in sequence and assembling them to a circuit board of the electronic device; wherein the light-emitting module includes a light-emitting diode and a flexible The circuit board, the light emitting diode is soldered to one end of the flexible circuit board, the cliff _ is fixed to the elastic actuating member, and then the valley is connected to the light guide body, and the other end of the flexible circuit board is connected to the circuit board with the switch, the switch Actuated by the elastic actuator. The method of manufacturing a key according to claim 6, wherein the casing is provided with a curved surface and a receiving space penetrating the casing, and the outer wall of the receiving space y is provided with an opening. The button manufacturing method of claim 7, wherein the light guiding body comprises a main body portion, a fastening portion disposed along a lower end edge of the main body portion, and the main body portion is provided with a pressing surface and a receiving cavity, and the receiving cavity The two ends are provided with a padding portion, and the side wall of the receiving cavity is provided with a slot for the opening of the outer wall of the housing. 9. The method of manufacturing a key according to claim 8, wherein the elastic actuating member comprises an actuating portion housed in the light guiding body receiving cavity, and two supporting members supported on the circuit board. a holding 设置 provided on the actuating portion. The invention relates to a method for manufacturing a key according to claim 9, wherein the flexible circuit board is provided with first and second welding respectively welded to the light emitting diode and the circuit board. The flexible circuit board is soldered with one end of the light-emitting diode and further provided with a fixing hole fixed to the fixing column on the elastic actuator. Page 13