CN2814650Y

CN2814650Y - Light-transmitting push-button switch

Info

Publication number: CN2814650Y
Application number: CN 200520074073
Authority: CN
Inventors: 李中杰
Original assignee: HUAJIE ELECTRONIC CO Ltd SUZHOU
Current assignee: HUAJIE ELECTRONIC CO Ltd SUZHOU
Priority date: 2005-07-27
Filing date: 2005-07-27
Publication date: 2006-09-06
Anticipated expiration: 2015-07-27

Abstract

The utility model relates to a light transmitting button switch which is characterized in that the utility model comprises a switch base, two movable contact pieces, two static contact pieces and a push key, wherein the center of the bottom of the switch base is provided with a concave cavity, and the top of the concave cavity is transparent; the two movable contact pieces and the two static contact pieces surround the concave cavity to be clamped on the switch base; an elastic arm is arranged on each movable contact piece; the end part of the elastic arm extends to the vicinity of contact points of the two static contact pieces; the push key is sheathed on the switch base in a sliding mode; an action spring is arranged between the push key and the switch base along the sliding direction; an inner cavity of the push key corresponding to the elastic arm on the movable contact piece is provided with a convex block or a slant surface; the push key presses the elastic arm which is applied to the movable contact piece through the convex block or the slant surface downwards, which forcedly leads the end part of the elastic arm to be abutted with the contact points of the static contact pieces; the top of the push key is transparent and is corresponding to the concave cavity of the switch base to form a perpendicular light transmitting passage. The switch of the utility model has the advantages of high reliability of action, and clear and obvious display for characters. The utility model is especially suitable for machines with high accuracy, such as a vote elective machine, a question answering machine, etc.

Description

The Nonopaque type push-button switch

Technical field

The utility model relates to a kind of push-button switch, is specifically related to a kind of push-button switch of special Nonopaque type.

Background technology

High accuracy machines such as vote by ballot machine, answer machine, particularity because of its use occasion, the luminous prompting character button that uses on it must meet following requirement: 1, the reliability of switch motion must be very high, voting machine, answer machine are in use, restriction because of its election or answer rule, its button is generally for once effective, one point tolerance (press button after switch access failure) appears, cause irrecoverable error promptly can for the result of ballot and answer, particularly for some important election meeting, this a little error promptly can cause serious consequence; 2, the button character is clear, eye-catching, and this point also is by the decision of the particularity of its use occasion, has only character clear, eye-catching, could reduce the possibility that operator's mistake is pressed.

But existing illuminated touch button switch must have two big classes: a class is that generally these switches are fit to do the mains switch of electric equipment products such as TV, washing machine with the luminous or not luminous push-button switch of representing on off state; Another kind of is floor selector button as elevator, and its function is to illuminate character in the button with built-in light source, makes button luminous, is convenient for people to select.

Representatively in the first kind switch be: be called " shift knob that band light shows " as Chinese patent bulletin disclosed name on April 20th, 2005, the patent No. is 200420033355.2 utility model patent, with on April 24th, 2002 disclosed name be called " button " with diode displaying state, the patent No. is 01226683.3 utility model patent, disclosed button structurally is made of a general Switch main body and a transparent housing in this two patents scheme, add built-in light source in transparent housing, the Push switch body is connected circuit uses the luminous condition prompting of doing of built-in light source.Can only be luminous on this class switch function or Luminous hint switch state not, can't character display, the reliability of its switch motion also has problems, therefore, this class switch does not satisfy the button requirement of high accuracy machines such as above-mentioned voting machine, answer machine, therefore, can't be used for high accuracy machines such as ticket voting machine, answer machine.

Representatively in the second class switch be: Chinese patent bulletin disclosed name on November 15 nineteen ninety-five is called " elevator button ", the patent No. is 94239791.6 utility model patent, adopt general little switch that touches on its structure, the reliability of switch motion is not high, still can not satisfy the button requirement of high accuracy machines such as above-mentioned voting machine, answer machine fully, therefore, still be not suitable for high accuracy machines such as ticket voting machine, answer machine.

Summary of the invention

The utility model provides a kind of Nonopaque type push-button switch, this push-button switch reliable in action height, and character clear display, eye-catching meets the requirement of high accuracy machines such as vote by ballot machine, answer machine to button, can be exclusively used in this type of high precision machines.

For achieving the above object, the technical solution adopted in the utility model is: a kind of Nonopaque type push-button switch, comprise switch base, two movable contact springs, two static contacts and button, described switch base bottom center is provided with a cavity, the cavity top transparent, two movable contact springs and two static contacts are connected on the switch base around cavity, and it is forward and backward that two movable contact springs are arranged symmetrically in cavity, it is left and right that two static contacts are arranged symmetrically in cavity, draws the switch pole pin on two static contacts; Each movable contact spring is provided with elastic arm, and this elastic arm end extends to by the contact of two static contacts; Described button slip cap is connected on the switch base, along glide direction the effect spring is set between button and switch base; The button inner chamber is provided with projection or inclined-plane corresponding to the elastic arm on the movable contact spring, and button pressed is the elastic arm on movable contact spring with projection or ramp effect, forces the contact of elastic arm end against static contact; Described key-top is transparent, and is corresponding with the cavity of switch base, forms a vertical light transmission passage.

Related content in the technique scheme is explained as follows:

1, in the such scheme, the cavity of described switch base bottom center is the cavity that holds external light-emitting component, during installation, can be installed on light-emitting component on the electronic circuit board earlier, again this Nonopaque type push-button switch is covered on the light-emitting component, and fixedly be welded in its bottom pin on the electronic circuit board; Its external light-emitting component can be one or more light-emitting diodes or neon tube; External light-emitting component is connected by the circuit on the electronic circuit board with this Nonopaque type push-button switch, it is luminous or not luminous that it can control each light-emitting component by the break-make of this Nonopaque type push-button switch, or the light-emitting component of two different colors is switched, (before not pressing, be green glow to change the luminous color of button; After pressing, be ruddiness).

2, in the such scheme, being provided with specifically of described static contact can be: described static contact is " Contraband " type, is made of the tabs of substrate and its both sides, and the contact is located on the tabs, the tabs of static contact both sides extends to the inboard or the outside of movable contact spring, and is adjacent with the elastic arm end of movable contact spring; Static contact is provided with overhead structure, corresponding clamping matching clamping on this barb and the switch base.

Being provided with specifically of movable contact spring can be: each extension downwards of described movable contact spring and arranged on left and right sides is provided with elastic arm, and the elastic arm end in its left side is adjacent with place, the static contact contact in left side, and the elastic arm end on right side is adjacent with place, the static contact contact on right side; Movable contact spring is provided with overhead structure, corresponding clamping matching clamping on this barb and the switch base.

Described static contact cooperates the scheme that constitutes to have with movable contact spring multiple, and wherein preferred version is: static contact is " Contraband " type, is made of the tabs of substrate and its both sides, and the contact is set on the tabs, and the tabs of static contact both sides extends to the inboard of movable contact spring; Movable contact spring is flat sheet type, and movable contact spring is to having a whole piece elastic arm, or respectively establishes an elastic arm at two ends, contacts contact on the two static contact tabs with the elastic arm end; Static contact and movable contact spring are rectangular around the pedestal center arrangement.

3, in the such scheme, the concrete preferred version that described button slip cap is connected on the switch base can be: be provided with four slip conduits four jiaos of switch base, corresponding four the slip conduits of button inner chamber are provided with four axles that are slidingly connected, and these axles that are slidingly connected are embedded in the slip conduit of each correspondence; Be provided with stage clip in each slip conduit, this stage clip acts on and is slidingly connected between axle bottom and slip conduit bottom.In this scheme, button is steady with being connected of switch base, is difficult for when pressing waving.

4, in the such scheme, for improving illumination effect, can be provided with image amplifier at the cavity top, this image amplifier mainly comprises a taper printing opacity post, and this taper printing opacity post is positioned at the central authorities of cavity inner top; Also can respectively add a cylindrical printing opacity post during specific design in the both sides of taper printing opacity post.

5, in the such scheme, the concrete scheme of described button design can be: button is made of socket type shell and transparent loam cake, is provided with the expansion mating plate of tape character in the transparent upper cover roof; Described transparent upper cover specifically can constitute by two-layer lid is stacked, and the expansion mating plate of tape character is clamped between two cap topwall.

6, in the such scheme, for a nearly step is improved illumination effect, make the even scattering of light, described switch base center of top can fixedly install one again and expand mating plate, and this expansion mating plate is in being located at light transmission passage.

7, in the such scheme, the cavity top transparent of switch base specifically can be embedded a transparency window at its top, or directly opens a printing opacity mouth, or the whole transparent material that adopts of switch base is made.

The utility model operation principle is: switch base of the present utility model central authorities are provided with a vertical light transmission passage, be with in a light-emitting diode, neon tube or other light source flush switch base bottom cavity during use, the light of light-emitting diode, neon tube or other light emitted is gone out through the light transmission passage transmission that makes progress, illuminate keytop, the character of button end face is shown; Send out device big through the light of switch base cavity roof earlier in the light emission way and send out greatly, first again after two-layer expansion mating plate block, light is broken up evenly, with this with clear, eye-catching the showing of the character of button end face.

Switch sections of the present utility model adopts two static contacts and two movable contact springs around design, the contact cooperating of downward elasticity of extension arm of movable contact spring and static contact, between the static contact at two ends, form two break-make contact mechanisms of symmetry, during action, press button downwards, make the projection of button inner chamber both sides or the inclined-plane acts on two movable contact springs simultaneously from both sides elastic arm, make the inwardly contact on the two static contact tabs, elastic arm end, two static contacts are electrically connected, even two switch pole pin conductings; Unclamp button, button promptly pops up under the spring force effect and resets, and the elastic arm of two movable contact springs also resets, and two static contacts are disconnected, and promptly two switch pole pin disconnect; With this, finish the break-make working in reciprocating mode process of switch.

Because the technique scheme utilization, the utility model compared with prior art has following advantage:

1, since the utility model adopted two static contacts and two movable contact springs around design, between two static contacts, form two active and static contact mechanisms of symmetry, when pressing, if when an active and static contact mechanism comes in contact fault, another active and static contact mechanism also can guarantee to connect reliably, improved the switch motion reliability greatly, met of the specific (special) requirements of high accuracy machines such as vote by ballot machine, answer machine the button contact reliability.

2, it is luminous that the utility model adopts external light-emitting component, the light that light-emitting component sends is launched by the light transmission passage of this push-button switch, be provided with image amplifier and multilayer in the light transmission passage and expand mating plate, light intensity is increased, divergently more even, therefore, can the character of button end face is clear, observably show; And, can carry out particular design to the circuit of this push-button switch and external light-emitting component during use, control the luminance of external light-emitting component with the break-make of this push-button switch, further strengthen the conspicuity of button and character, reduce the probability that people push the wrong.

Description of drawings

Accompanying drawing 1 is the decomposing schematic representation of the utility model example structure;

Accompanying drawing 2 partly cuts open the assembling schematic diagram for the utility model example structure;

Accompanying drawing 3 partly cuts open schematic diagram after for the switch base of the utility model embodiment and static contact, movable contact spring assembling;

Accompanying drawing 4 is the vertical view of accompanying drawing 4;

Accompanying drawing 5 is the structure complete section schematic diagram of the socket type shell of the utility model embodiment;

Accompanying drawing 6 is the upward view of accompanying drawing 5.

In the above accompanying drawing: 1, switch base; 2, movable contact spring; 3, static contact; 4, cavity; 5, utmost point pin; 6, elastic arm; 7, projection; 8, substrate; 9, tabs; 10, barb; 11, screens; 12, slip conduit; 13, the axle that is slidingly connected; 14, stage clip; 15, taper printing opacity post; 16, socket type shell; 17, transparent upper cover; 18, the expansion mating plate of tape character; 19, expand mating plate; 20, cylindrical printing opacity post.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment: shown in accompanying drawing 1～accompanying drawing 6, a kind of Nonopaque type push-button switch is made of switch base 1, two movable contact springs 2, two static contacts 3, stage clip 14, socket type shell 16 and transparent upper cover 17; Described switch base 1 is made with the transparent material material, its bottom center is provided with a cavity 4, two movable contact springs 2 and two static contacts 3 are connected on the switch base 1 around cavity 4, it is forward and backward that two movable contact springs 2 are arranged symmetrically in cavity 4, it is left and right that two static contacts 3 are arranged symmetrically in cavity 4, and the base plate that is passed down through switch base 1 from two static contacts 3 is drawn switch pole pin 5; Static contact 3 is " Contraband " type, is made of the tabs 9 of substrate 8 and its both sides, and the tabs 9 of static contact 3 both sides extends to the inboard of movable contact spring 2, on the tabs 9 contact is set; Each extension downwards of movable contact spring 2 and arranged on left and right sides is provided with elastic arm 6, and the elastic arm 6 in its left side is adjacent with the place, contact on static contact 3 tabs 9 in left side, and the elastic arm 6 on right side is located adjacent with the contact on the tabs 9 of the static contact 3 on right side.

Switch base is provided with four slip conduits 12 for 1 four jiaos, corresponding four the slip conduits 12 of socket type shell 16 inner chambers are provided with four axles 13 that are slidingly connected, these axles 13 that are slidingly connected slide and are embedded in the slip conduit 12 of each correspondence, with this socket type shell 16 slip caps are connected on the switch base 1; Be provided with stage clip 14 in each slip conduit 12, this stage clip 14 acts on and is slidingly connected between axle 13 bottoms and slip conduit 12 bottoms.

The inner chamber of socket type shell 16 is provided with four projections corresponding to four elastic arms 6, is connected with on the socket type shell 16 by the stacked transparent upper cover that constitutes 17 of two-layer lid, and clamping has the expansion mating plate 18 of tape character between two cap topwall.Transparent upper cover 17 is corresponding with the cavity 4 of switch base 1, forms a vertical light transmission passage.Cavity 4 tops are provided with image amplifier, this image amplifier is made of a taper printing opacity post 15 of the central authorities of cavity 4 inner tops and two cylindrical printing opacity posts 20 of both sides, also be provided with expansion mating plate 19 at the top of switch base 1, image amplifier and expansion mating plate 19 all are arranged in light transmission passage, and its effect is with the light amplification and breaks up evenly.

3 of the inner chamber of socket type shell 16 and switch base 1 or static contacts are provided with upper and lower spacing retaining buckle structure, make socket type shell 16 normally pressing in the process all, can not break away from switch base 1.Be equipped with barb 10 structures on movable contact spring 2 and the static contact 3, screens 11 corresponding on these barbs 10 and the switch base cooperates clampings, and movable contact spring 2 and static contact 3 firmly are fixed on the switch base 1, is difficult for getting loose.

During operation, press transparent upper cover 17, transparent upper cover 17 and socket type shell 16 are together pressed down, socket type shell 16 acts on four elastic arms 6 with four projections 7, force four elastic arms 6 together inwardly against tabs 9 upper contacts, with 3 conductings of left and right sides static contact; When unclamping transparent upper cover 17, transparent upper cover 17 and socket type shell 16 are lifted under the effect of stage clip 14, and four projections 7 break away from four elastic arms 6, and elastic arm 6 resets and breaks away from contact on the tabs 9, left and right sides static contact 3 is disconnected, finish the reciprocal process of break-make of this switch with this.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the present utility model.

Claims

1, a kind of Nonopaque type push-button switch, it is characterized in that: comprise switch base [1], two movable contact springs [2], two static contacts [3] and button, described switch base [1] bottom center is provided with a cavity [4], cavity [4] top transparent, two movable contact springs [2] and two static contacts [3] are connected on the switch base [1] on every side around cavity [4], it is forward and backward that two movable contact springs [2] are arranged symmetrically in cavity [4], and it is left and right that two static contacts [3] are arranged symmetrically in cavity [4], draws switch pole pin [5] on two static contacts [3]; Each movable contact spring [2] is provided with elastic arm [6], and this elastic arm [6] end extends to by the contact of two static contacts [3]; Described button slip cap is connected on the switch base [1], along glide direction the effect spring is set between button and switch base [1]; The button inner chamber is provided with projection [7] or inclined-plane corresponding to the elastic arm [6] on the movable contact spring [2], and button pressed is the elastic arm [6] on movable contact spring [2] with projection [7] or ramp effect, forces the contact of elastic arm [6] end against static contact [3]; Described key-top is transparent, and is corresponding with the cavity [4] of switch base [1], forms a vertical light transmission passage.

2, Nonopaque type push-button switch according to claim 1, it is characterized in that: described static contact [3] is " ㄈ " type, tabs [9] by substrate [8] and its both sides constitutes, the contact is located on the tabs [9], the tabs [9] of static contact [3] both sides extends to the inboard or the outside of movable contact spring [2], and is adjacent with elastic arm [6] end of movable contact spring [2]; Static contact [3] is provided with barb [10] structure, and this barb [10] is gone up corresponding screens [11] with switch base [1] and cooperated clamping.

3, Nonopaque type push-button switch according to claim 1, it is characterized in that: each extension downwards of described movable contact spring [2] and arranged on left and right sides is provided with elastic arm [6], elastic arm [6] end in its left side is adjacent with place, static contact [3] contact in left side, and the place, static contact [3] contact on the elastic arm on right side [6] end and right side is adjacent; Movable contact spring [2] is provided with barb [10] structure, and this barb [10] is gone up corresponding screens [11] with switch base [1] and cooperated clamping.

4, Nonopaque type push-button switch according to claim 1, it is characterized in that: described switch base is provided with four slip conduits [12] for [1] four jiao, corresponding four the slip conduits of button inner chamber [12] are provided with four axles [13] that are slidingly connected, and these axles [13] that are slidingly connected are embedded in the slip conduit [12] of each correspondence; Be provided with stage clip [14] in each slip conduit [12], this stage clip [14] acts on and is slidingly connected between axle [13] bottom and slip conduit [12] bottom.

5, Nonopaque type push-button switch according to claim 1 is characterized in that: described cavity [4] top is provided with image amplifier, and this image amplifier mainly comprises a taper printing opacity post [15], and this taper printing opacity post [15] is positioned at the central authorities of cavity [4] inner top.

6, Nonopaque type push-button switch according to claim 1 is characterized in that: described button is made of socket type shell [16] and transparent upper cover [17], is provided with the expansion mating plate [18] of tape character in transparent upper cover [17] roof.

7, Nonopaque type push-button switch according to claim 6 is characterized in that: described transparent upper cover [17] constitutes by two-layer lid is stacked, and the expansion mating plate [18] of tape character is clamped between two cap topwall.

8, Nonopaque type push-button switch according to claim 1 is characterized in that: described switch base [1] center of top is fixed with and expands mating plate [19], and this expansion mating plate [19] is in being located at light transmission passage.