CN201355583Y

CN201355583Y - Switch

Info

Publication number: CN201355583Y
Application number: CNU2009203005213U
Authority: CN
Inventors: 彭鑫云
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2009-02-09
Filing date: 2009-02-09
Publication date: 2009-12-02
Anticipated expiration: 2019-02-09

Abstract

The utility model discloses a switch, which is applied to electronic equipment and works in a press manner. The switch comprises a casing and an operation body, wherein the casing comprises a rectangular base and an accommodating part extending forwards from the base; the accommodating part comprises a back end in contact with the base, a front end opposite to the back end and a through hole penetrating the front and the back ends; the operation body comprises a cylindrical press part, which is accommodated in the through hole and extends out from the front end of the accommodating part; a sealing ring is arranged between the press part and the accommodating part; an accommodating groove is convexly formed in a position of the inner wall of the through hole and near the front end; and the sealing ring is arranged in the accommodating groove, thereby fixing the sealing ring from both the front and the back.

Description

Switch

[technical field]

The utility model relates to a kind of switch, refers in particular to a kind of push switch that is applied in the electronic equipment.

[background technology]

Along with development of science and technology and progress, switch is widely used in the various electronic equipments and the more and more microminiaturized development of trend.

A kind of switch relevant with the utility model switch, it comprises: housing, injection moulding is in the conducting terminal group of housing, be assembled in the actuation mechanism in the housing, spring and be overlying on lid on the housing, actuation mechanism comprises operating body, be contained in the light-emitting diode of operating body, the insulating body of fixing light-emitting diode and be assembled in the movable terminal and the fixed terminal of insulating body, the cylindrical resettlement section that housing has rectangular base and extends from base portion, actuation mechanism is contained in housing, wherein operating body comprises cylindrical press section and wedge shape Embedded Division, described press section part is contained in the resettlement section and is fixed on the insulating body, by the extruding press section, realize closing and opening of switch, for the convenience of operating, the radius of press section is less than the radius of resettlement section, this makes and has the gap between operating body and housing, there is impurity to fall in the housing easily, influence the service behaviour of switch, therefore between operating body and housing, be provided with a packing ring, in order to make packing ring that better sealing effectiveness be arranged, packing ring and press section interference fit, this makes the press section be subjected to very big pressure, slight crack appears in press section easily, so on packing ring, offer fracture, reduce pressure, but this makes simultaneously packing ring loosening easily in switch switching process to the press section.

In view of above disappearance, a kind of constitutionally stable switch of ad hoc meter.

[utility model content]

Technical problem to be solved in the utility model provides a kind of constitutionally stable switch.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of switch, comprise housing and operating body, housing has rectangular base and from resettlement section that base portion extends forward, the resettlement section has rear end and the front end relative with the rear end with the base portion contact, be provided with the through hole that runs through the front and back end, operating body has the cylindricality press section, the press section part is contained in the through hole and outside front end stretches out the resettlement section, be provided with sealing ring between press section and resettlement section, wherein the inwall of through hole is concaved with accepting groove near the position of front end, and sealing ring is arranged in accepting groove.

Compared to prior art, the inwall of the utility model switch resettlement section is concaved with accepting groove near the position of front end, and sealing ring is arranged in accepting groove, thus on former and later two directions the fixing seal ring.

[description of drawings]

Fig. 1 is the constitutional diagram of the utility model switch;

Fig. 2 is the constitutional diagram at another visual angle of the utility model switch;

Fig. 3 is the exploded view of the utility model switch;

Fig. 4 is the constitutional diagram of the utility model actuation mechanism;

Fig. 5 is the schematic diagram of the utility model switch case;

Fig. 6 is the profile of switch shown in Figure 2 along the A-A line.

[embodiment]

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

See also Fig. 1 to shown in Figure 6, the utility model switch comprise housing 1, injection moulding in the conducting terminal group 2 of housing 1, be assembled in actuation mechanism (indicating) in the housing 1, place 1 of actuation mechanism and housing spring 10, place the packing ring 4 between housing 1 and actuation mechanism, and be overlying on the lid 5 on the housing 1.

Housing 1 comprises the cylindrical resettlement section 12 that rectangular base 11 reaches from base portion 11 extends forward, wherein said base portion 11 has diapire 111 and reaches from diapire 111 upwardly extending left and right sides walls 113, antetheca 114 and rear wall 115, the wall hollow out relative of base portion 11 with diapire 111, extend forward from antetheca 114 resettlement section 12, rear wall 115 is provided with semi-circular cut-out (not indicating), notching edge is provided with buckling groove 1151, cooperate with lid 5, make both in conjunction with more firm, the position that left and right sides wall 113 is close to top edge is provided with the guiding gutter 1131 that runs through rear wall 115, for housing 1 engages more firm with lid 5, need splash into liquid viscose glue in 5 of housing 1 and lids, viscose glue can flow out outside the switch from rear wall 115 by guiding gutter 1131, avoids influencing electrically conducting of switch; Described resettlement section 12 has and the rear end 121 of base portion 11 contact and the front end 122 relative with rear end 121, be provided with the through hole 123 that runs through front and back end 122,121, base portion 11 and resettlement section 12 are connected, be used to accommodate actuation mechanism, the inwall of described through hole 123 is concaved with accepting groove 1231 in the position near front end 122, and accepting groove 1231 is used for fixing packing ring 4.

2 injection mouldings of conducting terminal group are stretched out outside the housing 1 in diapire 111 and some, it comprises: three pairs be symmetrically set and be bent into 90 (terminal, be respectively first conducting terminal 21, second conducting terminal 22 and the 3rd conducting terminal 23, second conducting terminal 22 places first, the 3rd conducting terminal 21, between 23, first, second, the 3rd conducting

terminal

21,22,23 have first respectively, second, the 3rd contact site 211,221,231 and first, second, the 3rd afterbody 212,222,232, first, the 3rd contact site 211,231 heads are curved, second contact site 222 is horizontally disposed with first, second and third contact site 211,221,231 are positioned at homonymy.

Actuation mechanism comprises insulating body 6, is assembled in the movable terminal 7 of insulating body 6, fixed terminal 8 and light-emitting diode 9, and operating body 3, described insulating body 6 is roughly rectangular, have upper surface 61, lower surface 62 and four sides 63, be provided with first caulking groove 64, second caulking groove 65 and the 3rd caulking groove (not indicating), first caulking groove 64 extends upward from lower surface 62, be used to accommodate fixed terminal 8, second caulking groove 65 extends from the side, connect perpendicular to first caulking groove 64 and with first caulking groove 64, be used to accommodate light-emittingdiode 9, the three caulking grooves and be used to accommodate movable terminal 7; Described movable terminal 7, comprise holding parts 71 that embeds in the insulating body 6 and a pair of symmetrically arranged movable contact site 72 that extends to form from the bending of holding parts 71 1 ends, two movable contact sites 72 do not link to each other, respectively with housing 1 diapire 111 on 2 sliding contacts of conducting terminal group; Described fixed terminal 8, comprise body 81 that embeds insulating body 1 and the fixed contact 82 that extends from body 81 1 ends, wherein body 81 is provided with through hole (not indicating), be provided with relative extension and symmetrically arranged tongue piece 811 in the through hole, conducting terminal group 2 permanent contacts the on fixed contact 82 and housing 1 diapire 111; Described light-emitting diode 9 comprises lamp body 91 and the pair of pins 92 of extending from lamp body 91, and two pins 92 passes through hole respectively and embeds in the insulating body 6; Described operating body 3 comprises that cylindrical press section 31 and self-pressing portion 31 terminal edges are to the wedge shape Embedded Division 32 that extends away from the direction of press section 31, wherein the radius of 31 front and back ends, press section is inconsistent, place through hole 123 and front end 122 to stretch out outside the housing 1 from resettlement section 12, hollow out in the middle of the press section 31, the lamp body 91 of light-emitting diode 9 places press section 31, be provided with the space between lamp body 91 and the press section 31, Embedded Division 32 is resisted against the upper surface 61 of insulating body 1.

Spring 10 places between insulating body 6 and the housing 1.

Packing ring 4 comprises sealing ring 41 and fixing ring 42, described sealing ring 41 and press section 31 interference fit, sealing ring 41 is concaved with circle shape groove 411, sealing ring 41 is separated into a plurality of concentric rings, make sealing ring 41 more flexible, sealing ring 41 further is provided with fracture 412, and fracture 412 runs through each face of sealing ring 41, reduces the pressure to press section 31; Described fixing ring 42 comprises holding section 421 and fixed part 422, and holding section 421 places groove 411, and fixed part 422 1 sides are resisted against sealing ring 41.Both fit together sealing ring 41 and fixing ring 42, and are rounded, place between press section 31 and the resettlement section 12, wherein sealing ring 41 is arranged in accepting groove 1231, thereby on former and later two directions, be restricted, avoid it loosening, make switch performance in the course of work more stable.

Lid 5 is overlying on the housing 1, comprise the junction surface 52 that an end of the main part 51 that places housing 1 top and autonomous body 51 extends downward vertically, junction surface 52 semicirculars in shape, the edge is provided with Access Division 521, Access Division 521 places the buckling groove 1151 of housing 1, makes lid 5 combine more firm with housing 1.

Introduce the assembling process of the utility model switch below: at first 2 injection mouldings of conducting terminal group are in the diapire 111 of housing 1, wherein first, second and third afterbody 212,222,232 stretch out outside the housing 1, then actuation mechanism is assembled into housing 1, earlier the holding parts 71 of movable terminal 7 62 is assembled into the 3rd caulking groove from the bottom surface, fixed terminal 8 is assembled into first caulking groove 64, light-emitting diode 9 63 is assembled into second caulking groove 65 from the side, pin 92 runs through through hole, again packing ring 4 is fixed in operating body 3, then with operating body 3 and be mounted with movable terminal 7, the insulating body 6 of fixed terminal 8 and light-emitting diode 9 is assembled into housing 1, wherein

movable contact point

72 and 2 sliding contacts of conducting terminal group, fixed contact point 82 fixedly contacts with conducting terminal group 2, Embedded Division 32 is fixed in insulating body 6, this moment, press section 31 placed through hole 123 and outside front end 122 stretches out housing 1, packing ring 4 places between housing 1 and the operating body 3, wherein sealing ring 41 is arranged in accepting groove 1231, in the process that switch closes and opens, accepting groove 1231 is fixing seal ring 41 on former and later two directions, spring 10 is placed between insulating body 6 and the housing 1 again, at last lid 5 is assembled in housing 1, Access Division 521 places buckling groove 1151, and splashes into liquid viscose glue in 5 of housing 1 and lids.

The execution mode that the above only provides for the 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

1. switch, comprise housing and operating body, housing has rectangular base and from resettlement section that base portion extends forward, the resettlement section has rear end and the front end relative with the rear end with the base portion contact, is provided with the through hole that runs through the front and back end, and operating body has the cylindricality press section, the press section part is contained in the through hole and outside front end stretches out the resettlement section, be provided with sealing ring between press section and resettlement section, it is characterized in that: the inwall of through hole is concaved with accepting groove near the position of front end, and sealing ring is arranged in accepting groove.

2. switch as claimed in claim 1 is characterized in that: described sealing ring and press section interference fit are provided with the fracture that runs through each face.

3. switch as claimed in claim 2 is characterized in that: described sealing ring is concaved with groove, and sealing ring is separated into a plurality of concentric circless.

4. switch as claimed in claim 3 is characterized in that: described switch further comprises the fixing ring, and the fixing ring comprises holding section and fixed part, and the holding section places groove, and fixed part is resisted against sealing ring.

5. switch as claimed in claim 4 is characterized in that: two ends, described press section radius is inconsistent, and the fixing ring is close to the big end of press section radius.

6. switch as claimed in claim 5, it is characterized in that: described switch further comprises insulating body, is assembled in the movable terminal and the fixed terminal of insulating body, and injection moulding is in the conducting terminal group of housing, movable terminal and the sliding contact of conducting terminal group, fixed terminal contacts with the conducting terminal group is permanent.

7. switch as claimed in claim 6 is characterized in that: described operating body self-pressing portion is extended with the wedge shape Embedded Division, and Embedded Division is immobilizated in the insulating body surface.

8. switch as claimed in claim 7, it is characterized in that: described fixed terminal is provided with through hole, is provided with relative extension and symmetrically arranged tongue piece in the through hole, and switch further comprises light-emitting diode, light-emitting diode has pin, and two pins runs through through hole respectively and contacts with tongue piece.

9. switch as claimed in claim 8 is characterized in that: described switch further comprises lid, and lid has the junction surface, the junction surface semicircular in shape, the edge is provided with the Access Division, and described housing further is provided with semi-circular cut-out, notching edge is provided with buckling groove, and the Access Division places buckling groove.

10. switch as claimed in claim 9 is characterized in that: described base portion has left and right sides sidewall and rear wall, and the position that left and right sides sidewall is close to top edge is provided with the guiding gutter that runs through rear wall.