CN201130607Y - Switch - Google Patents

Abstract

The utility model relates to a switch, comprising an insulating body provided with an accommodating space, a plurality of fixed terminals arranged inside the insulating body, a moveable terminal and a driving device, both of which are arranged in the accommodating space, and a cover body assembled on the insulating body; wherein, the insulating body comprises a third sidewall; the fixed terminal is provided with a weld leg extending out of the third sidewall of the insulating body; the cover body is provided with a supporting part extending along the third wall of the insulating body; and the supporting part and the weld leg of the fixed terminal are arranged on the same plane. The switch has an advantage that the cover body is provided with the supporting part so as to enable the switch with electrostatic prevention function, thus solving the problem of forward barycenter inclination caused by switch structure and increasing the switch quality.

Description

Switch

[technical field]

The utility model relates to a kind of switch, relates in particular to a kind of switch that is used for realizing the switching of electronic installation circuit.

[background technology]

Switch is widely used in the various electronic equipments, and is electrically connected at circuit board.As Fig. 4 and a kind of switch 100 ' shown in Figure 5, it comprises the insulating body 20 ' that is provided with receiving space 10 ' at least, somely is contained in fixed terminal 30 ' in the insulating body 20 ', places the movable terminal 40 ' and the drive unit 50 ' of above-mentioned receiving space 10 ' successively, and is assembled in the lid 60 ' on the insulating body 20 '.Wherein, fixed terminal 30 ' comprises the contact site 31 ' that contacts with movable terminal 40 ' or disconnect and extends insulating body 20 ' outer weld part 32 ' to be connected with circuit board (not shown).Above-mentioned switch 100 ' has the improved place of needs in order further to improve its quality.For example: above-mentioned switch 100 ' lacks ground structure, can make this switch 100 ' it be electrically connected the generation harmful effect because of the permanent static that accumulates that uses, moreover, because the reason that this switch 100 ' self is constructed, the center of gravity of its integral body is leaned forward, and then make between switch 100 ' and the circuit board and can not well electrically connect.

Given this, be necessary to design a kind of new switch to address the above problem in fact.

[utility model content]

The purpose of this utility model is to overcome above-mentioned defective, provide a kind of can with circuit board stable position and switch with good electrostatic-proof function.

The purpose of this utility model is achieved through the following technical solutions: a kind of switch, comprise the insulating body that is provided with receiving space, somely be contained in fixed terminal in the insulating body, place the movable terminal and the drive unit of above-mentioned receiving space successively, and be assembled in the lid on the insulating body.Wherein, insulating body comprises the 3rd sidewall, and fixed terminal is provided with the welding foot that extends insulating body the 3rd sidewall, and lid is provided with the support portion of extending along insulating body the 3rd sidewall, and the welding foot of this support portion and fixed terminal is positioned at same plane.

Compared with prior art, the utlity model has following advantage: by on lid, designing the support portion, not only make whole switch have the effect of antistatic, and solved the problem that causes center of gravity to lean forward because of switch self structure, thereby improved the quality of switch.

[description of drawings]

Fig. 1 is the stereogram of the utility model switch.

Fig. 2 is the three-dimensional exploded view of switch shown in Figure 1.

Fig. 3 is the three-dimensional combination figure of the utility model switch and circuit board.

Fig. 4 is the stereogram of prior art switch.

Fig. 5 is the three-dimensional exploded view of switch shown in Figure 4.

[embodiment]

Describe the embodiment of the utility model switch 100 in detail below in conjunction with accompanying drawing.

See also Fig. 1 to shown in Figure 3, the utility model switch 100 is welded on the circuit board (not indicating), be used for realizing that the circuit of electronic installation switches, it comprise the insulating body 20 that is provided with receiving space 10, some be contained in fixed terminal 30 in the insulating body 20, successively place movable terminal 40 and drive unit in the above-mentioned receiving space 10, be located at the light-emitting diode 70 of drive unit, and be assembled in the lid 90 on the insulating body 20.

Insulating body 20 roughly is the box-shaped of end face opening, it comprises two relative the first side walls 21, two other second relative sidewall 22 and the 3rd sidewall 23, be connected the diapire of the first side wall 21, second sidewall 22 and the 3rd sidewall 23 (indicating), and the receiving space 10 that is formed by above-mentioned the first side wall 21, second sidewall 22, the 3rd sidewall 23 and diapire.Wherein the inboard of the first side wall 21 is set to have certain thickness arc sections 211 and is used for corresponding construction coupling with drive unit, and the inboard of second sidewall 22 and the 3rd sidewall 23 is provided with vertical caulking groove 24 with fixing light-emitting diode 70, and this caulking groove 24 extends upward and forms from diapire.Second sidewall 22 that the first side wall 21 is adjacent and the junction of the 3rd sidewall 23 also are provided with the groove 25 that vertically extends, and the outer wall of the first side wall 21 is provided with holding section 212.In addition, insulating body 20 is provided with a protuberance 231 in the intersection of its 3rd sidewall 23 and diapire, and partial fixing terminal 30 can extend outward outside the insulating body 20 from above-mentioned protuberance 231.

Fixed terminal 30, the part-structure injection moulding is in insulating body 20, it comprises the first, second, third, fourth and the 5th fixed terminal 31,32,33,34,35, and each fixed terminal 30 comprise the welding foot 36 that welds mutually with circuit board, can with the contact site 37 of movable terminal 40 or light-emitting diode 70 butts, and place connecting portion (indicating) between welding foot 36 and the contact site 37.Wherein, four, the 5th fixed terminal 34,35 remains with light-emitting diode 70 and contacts, second fixed terminal 32 remains with movable terminal 40 and contacts, first fixed terminal 31 contacts with movable terminal 40 under normal conditions, and after movable terminal 40 was subjected to pushing start, first fixed terminal 31 separated with movable terminal 40, at this moment, movable terminal 40 contacts with the contact site 37 of the 3rd fixed terminal 33, thereby finishes the switching between the circuit.Above-mentioned welding foot 36 all is positioned at a side of insulating body 20 the 3rd sidewall 23.

Movable terminal 40 is made by having certain flexible electric conducting material, and it is roughly in the form of annular discs, it places on the diapire of insulating body 20, comprise and be positioned at the contact zone 41 of center to contact with the 3rd fixed terminal 33 contact sites 37, and from the contact zone 41 radioactively little conducting portions that protrude out downwards 42, and these conducting portions 42 are mutually 90 degree and are provided with.Under the normality, have only a pair of adjacent conducting portion 42 to contact with first, second fixed terminal 31,32 respectively, and another does not contact with any fixed terminal 30 to conducting portion 42.

Drive unit in the present embodiment, is meant the pressing body 50 that places on the movable terminal 40, places the positioning body 60 of pressing body 50 tops and operating parts 80 successively.

Pressing body 50 is made by the rubber-like silica gel material, and it places on the movable terminal 40, comprises center press section 51, and be located at 51 bottoms, press section and with the support arm 52 of the conducting portion 42 corresponding settings of movable terminal 40.Wherein, press section 51 has certain height, and like this, when pressing body 50 is subjected to time spent of doing of operating parts 80, above-mentioned press section 51 strain will take place, and this strain in the vertical direction has very big displacement downwards owing to have good elasticity.

Positioning body 60, place between pressing body 50 and the light-emitting diode 70, roughly be I-shaped, the opposite end of this positioning body 60 is provided with blocked block 61, these blocked block 61 peripheries are smooth circular-arc, so that be complementary with the arc sections 211 of insulating body 20 the first side walls 21 inwalls, and the part that connects between the above-mentioned blocked block 51 is called as drive division 62, when operating parts 80 applies active force to positioning body 60, positioning body 60 can act on the contact zone 41 of movable terminal 40 by this drive division 62, thereby makes the contact zone 41 of movable terminal 40 that strain take place.In addition, the both sides of above-mentioned drive division 62 then form pair of openings 63 and pass for light-emitting diode 70.

Operating parts 80, under the driving of external force, can move up and down in vertical direction, it comprises operating portion 81 that roughly is hollow cylindrical and the base portion 82 that places operating portion 81 belows, around the described base portion 82 on the lower side the position be provided with the grooves 83 of four average configurations, 83 of adjacent two grooves are provided with projection 84 with in the groove 25 that is placed in insulating body 20.

Light-emitting diode 70 places the top of positioning body 60, and partly is contained in the operating parts 80, and it comprises lamp body 71 and the pair of terminal pin 72 that is extended by lamp body 71 lower ends downward bendings.Wherein, terminal supportor 72 is immobilizated in the caulking groove 24 of insulating body 20, and contacts all the time with the contact site 37 of the 4th, the 5th fixed terminal 34,35 of injection moulding in caulking groove 24.

Lid 90 is made by metal material and rectangular platy structure, it is used for sheathed operating parts 80 and places insulating body 20, comprise top flat 91 and from the top flat 91 relative both side edges grip tab 92 of bending extension downwards respectively, this grip tab 92 is provided with the square hole 921 that the holding section 212 with insulating body 20 is interlocked.Above-mentioned top flat 91 is extended with a support portion 911 near the side of insulating body 20 protuberances 231 along 23 bendings of insulating body 20 the 3rd sidewall, this support portion 911 roughly with weld part 36 coplanes of fixed terminal 30.In addition, top flat 91 is provided with a circular port 912 in its center position, and the part-structure of operating parts 80 and light-emitting diode 70 can stretch out outside the insulating body 20 by above-mentioned circular port 912.

In addition, in order to increase the compactness between lid 90 and the insulating body 20, also between lid 90 and insulating body 20, increased a packing ring 12, this packing ring 12 is square silica gel thin sheet, the centre is a circular hole (a not label), this circular hole size is big or small identical with lid 90 circular ports 912, and location overlap.

During assembling, the plurality of fixed terminal 30 that at first will not have welding foot 36 temporarily is injected into one with insulating body 20, wherein relative with fixed terminal 30 contact sites 37 end extends insulating body 20 outsides, the part of then fixed terminal 30 being extended insulating body 20 outsides by bending to form welding foot 36.The position of contact site 37 in insulating body 20 of said fixing terminal 30 has nothing in common with each other, wherein the contact site 37 of first, second, third fixed terminal 31,32,33 is divided into the surface of insulating body 20 diapires, and the contact site 37 of the 4th, the 5th fixed terminal 34,35 extends in the caulking groove 24 of insulating body 20.Then, successively with movable terminal 40, pressing body 50, and positioning body 60 places in the receiving space 10 of insulating body 20, at this moment, place first, second fixed terminal 31, the conducting portion 42 of the movable terminal 40 of 32 tops is respectively with first, second fixed terminal 31,32 contact site 37 contacts, and its contact zone 41 is positioned at contact site 37 tops of the 3rd fixed terminal 33, the two does not contact, above-mentioned positioning body 60 connects with insulating body 20 the first side walls 21 inboard smooth arc sections 211 by its blocked block 61 peripheral smooth convex structures, then, light-emitting diode 70 and operating parts 80 are placed positioning body 60 tops successively, wherein, light-emitting diode 70 is immobilizated in the caulking groove 24 of insulating body 20 by the opening 63 that its terminal supportor 72 passes positioning body 60, at this moment, the because the 4th, the 5th fixed terminal 34,35 contact site 37 injection mouldings are in these place's insulating body 20 sidewalls, therefore, the pair of terminal pin 72 of light-emitting diode 70 is respectively with the 4th, the 5th fixed terminal 34,35 keep in touch, and operating parts 80 is by its projection 84 movable being immobilizated in the insulating body 20 with the coupling of the groove 25 of insulating body 20, at last, successively packing ring 12 and lid 90 are sheathed on the operating parts 80, wherein, lid 70 concern with the fastening of the blocked block 212 in insulating body 20 the first side walls 21 outsides by the square hole 921 on its grip tab 92 and with insulating body 20 fixing mutually, so far, the assembling process of whole switch 100 is finished.

At this moment, the switch 100 that assembling is finished is assemblied on the corresponding circuit board, and the 3rd sidewall 23 of insulating body 20 is towards circuit board, and the welding foot 36 of fixed terminal 30 is welded on the circuit board, and the support portion 911 of lid 90 also is welded on the circuit board equally.In the present embodiment, the support portion 911 by design lid 90 not only makes switch 100 have the effect of antistatic, and has solved the problem that causes center of gravity to lean forward because of switch 100 self structure, thereby has improved the quality of switch 100.

The above only is a kind of execution mode of the present utility model, it or not whole or unique execution mode, the variation of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model specification is claim of the present utility model and contains.

Claims (8)

1. switch, comprise the insulating body that is provided with receiving space, somely be contained in fixed terminal in the insulating body, place the movable terminal and the drive unit of above-mentioned receiving space successively, and be assembled in lid on the insulating body, wherein insulating body comprises the 3rd sidewall, and fixed terminal is provided with the welding foot that extends outside insulating body the 3rd sidewall, it is characterized in that: described lid is provided with the support portion of extending along insulating body the 3rd sidewall, and the welding foot of this support portion and fixed terminal is positioned at same plane.

2. switch as claimed in claim 1 is characterized in that: described switch is welded on the circuit board by the welding foot of fixed terminal and the support portion of lid.

3. switch as claimed in claim 1 is characterized in that: described each fixed terminal further comprises contact site.

4. switch as claimed in claim 3 is characterized in that: described switch further comprises a light-emitting diode, and this light-emitting diode comprises lamp body and the pair of terminal pin that extends from the bending of lamp body lower ends downward.

5. switch as claimed in claim 4, it is characterized in that: described fixed terminal is divided into the first, second, third, fourth and the 5th fixed terminal, movable terminal comprises the contact zone that is positioned at its center and radioactively little conducting portion that protrudes out from the contact zone downwards, wherein, when normality, first, second fixed terminal and a pair of adjacent conducting portion of movable terminal placed on it keep in touch.

6. switch as claimed in claim 5 is characterized in that: the contact site of described the 4th, the 5th fixed terminal keeps respectively contacting with the pair of terminal pin of light-emitting diode.

7. switch as claimed in claim 1 is characterized in that: described drive unit comprises pressing body, the positioning body that places the movable terminal top successively, and operating parts.

8. switch as claimed in claim 1 is characterized in that: described switch further comprises the packing ring that places between insulating body and the lid.

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