CN2570957Y

CN2570957Y - Push type switch

Info

Publication number: CN2570957Y
Application number: CN 02254649
Authority: CN
Inventors: 洪文仁
Original assignee: Taiwan Misaki Electronics Co Ltd
Current assignee: Taiwan Semiconductor Manufacturing Co TSMC Ltd; Taiwan Misaki Electronics Co Ltd
Priority date: 2002-09-20
Filing date: 2002-09-20
Publication date: 2003-09-03
Anticipated expiration: 2012-09-20

Abstract

The utility model relates to a push type switch, which has the advantages of small size and positive action. The push type switch is suitable for optical disc machines, audio-visual electronic machines, etc. The push type switch is provided with a box-shaped outer shell, an on-off operation member inserted in the outer shell, a pivot inserted in the operation member in elasticity, a spiral spring with two foot parts which extend backward and downward, and a sealing outer shell. The on-off operation member is provided with an operator part which is protruded out the top part of the outer shell, and can pivot up and down using a transverse pivot on the front end as the center. A bottom of the sealing outer shell is provided with an opening, and the upper side is provided with a base of a conductive plate for the two feet of the spring to contact. The whole push type switch is assembled by tabling or fastening the members. Thus, the utility model has the advantages of high yield and low cost; meanwhile, the operation stroke and the contact gap of the push type switch are easy to hold and regulate.

Description

Push switch

Technical field

The utility model relates to a kind of switch, relates in particular to a kind of structure that is applicable to the small-sized push switch of computers such as CD-ROM device or electrical type machine.

Background technology

Known in the past push switch, for example No. the 84208192nd, Taiwan patent application and No. 82213849 disclose, by formations such as base, case, the end pin that is located at base, movable guide card, spring and buttons, this structure not only component parts is many, complex structure, and because of using the spring perforation to be hooked on the associated components, the location is difficult, more increases the trouble of fit on, and comes off easily, thereby cost is higher and productive rate is low, also is difficult to more miniaturization simultaneously.

For improveing above-mentioned shortcoming, No. the 82211645th, Taiwan patent application for example, No. 84215624 and No. 85217017, though structure is arranged, difference in shape, then disclosed the sensitive switch that does not use spring substantially, it mainly is the flexure strip of integrally formed tool spring action on the movable guide card of en plaque, so as to replacing aforementioned spring, but in order to make movable guide card location and installation, fastening hole that is washed on the utilization activity guide card and fastening pawl are fastened on the end pin top that forms special shape, cause end pin complex structure and combination is installed and still quite bother, need suitable a twist of the wrist or be dependent on complicated assembly tool, how many tools do not improve.

In addition, the push switch that the Taiwan patent application is disclosed for No. 85108496 has a double-button, a spring eyelid retractor and and is formed with three cross-like foots and constructs the spring leaf that seems quite complicated, and the many and assembling of the number of components of global switch is trouble also.

The utility model content

The utility model is intended to solve the existing shortcoming of above-mentioned known switch, and a kind of simple structure is provided, and assembling easily, and is with low cost, and the operation of switch and contacting travel be easy to adjust both little and certain push switch that moves.

A kind of switch provided by the utility model, by: shell, be provided with the base of contact with conductive plate, control member and spring constitute; Be characterized in: this shell forms the box-like body of bottom surface opening, and its roof has a long groove shape operating portion and reveals the hole, and the central upper of two side is respectively equipped with the base stop hole that is relative mutually and respectively is provided with the pair of end pin in the front and rear part lower edge stretches out breach; Base forms top opening and can embed the interior box-like body of shell bottom surface opening, its inner face bottom is provided with two above-mentioned conductive plates that extend apart from one another by axially parallel, the outside central upper of two sides respectively is provided with a cartridge projection to evagination, nearly end of inner face then respectively is provided with one and is relative pivot cartridge groove, and this base is borrowed in the base stop hole that above-mentioned cartridge projection snaps in shell and can be loaded and unloaded and be combined as a whole with shell freely; And be nested with helical spring on the hinge portion of substrate front lower place and on substrate, have on the control member of prominent button portion, borrow the two ends, hinge portion to embed in the above-mentioned pivot cartridge groove and button portion reveals the hole from button portion and exposes shell, but be housed in base and enclosure pressing operation, the frequent elasticity of a wherein helical spring foot section is crimped on one of conductive plate, and another leg then keeps a pressing operation distance with another conductive plate.

Wherein the periphery wall of this shell is formed with several and installs and to use jut admittedly.

Wherein arbitrary or both central root edge is provided with a location breach in the front and back walls of this shell.

Wherein the bottom inner face central authorities of this base are formed with the axial parting bead that two conductive plates are separated, and are provided with the locator protrusions that just can embed the above-mentioned locating notch of shell in one of front and back walls or both outside central lower.

Wherein two of this base conductive plates respectively have the pair of end pin to pass the breach of shell below from two lower sidewall respectively protruding, external external circuit or power supply.

Wherein be provided with the pivot support plate that extends downward vertically below the base portion of this control member, the two ends of hinge portion protrude in the both sides of this support plate, and a side lower part of this support plate is provided with the retaining piece of a foot of the above-mentioned spring of block.

Wherein this helical spring forms and has a pair of linking part of borrowing the U oxbow of central authorities and link to each other and be symmetry, mutually with incorgruous special helical spring around the spring coil portion of rolling up, each free end of above-mentioned coil portion has end end and forms the arc-shaped bend end, and tiltedly stretches to the back lower place with different angles.

Wherein helical spring constitutes with the independent spring coil of different directions around volume by two, wherein a coil has the foot that connects of a frequent electral junction ground overlap joint or a closely connected corresponding foot in another coil, and one extend and be contacted with the contact foot of an above-mentioned conductive plate to the back lower place, another coil then has with above-mentioned and connects the above-mentioned corresponding foot that foot joins, and one to the back lower place extend and with the foot that contacts in the gap of another conductive plate pressing operation distance apart.

The utility model is because of having formation as above, simple structure not only, make easily and can give miniaturization, simple and easy because of assembling again, as long as each member direction is consistent, setting-in fastens insertion and can finish assembling fast one by one in regular turn, both need not by assembly tool, also need not the skilled craftsman, so productive rate improves greatly and cost reduces; Again because of each the contact 43a of foot, 43b to the hinge portion the long and helical spring of 34 moment arm give and respectively contact foot the bigger contact pressure of conductive plate, can obtain excellent contact then; Simultaneously, but the pressing operation stroke of gap d compounding practice portion and change easily when producing or adjusts between the end of two contact feets can be rated as the push switch that a novelty and tool are improved effect.

Description of drawings

Now be described in detail as follows with regard to concrete constructed embodiment of the present utility model according to accompanying drawing, wherein:

Fig. 1 is the stereogram of an embodiment of the present utility model;

Fig. 2 is the vertical view in part of the present utility model;

Fig. 3 is a partial cross sectional view of the present utility model;

Fig. 4 (A)～(C) represents partial cut-away elevation view, vertical view and the right side view of base respectively;

Fig. 5 is the stereogram of control member and spring assembly state;

Fig. 6 is helical spring vertical view;

Fig. 7 to Fig. 9 represents the forward and backward of another embodiment of push switch and right side partial sectional view respectively;

Figure 10 is helical spring another embodiment vertical view.

Embodiment

At first, please refer to Fig. 1 to Fig. 3, push switch of the present utility model has been embedded with the base 2 with

conductive plate

20a, 20b above mainly by shell 1, and control member 3 and contact constitute with helical spring 4.

Shell 1 is the base stop hole 11 of symmetry and perforate upper end incision end face and is arranged in arbitrary the central lower that several (this example is four) breach 12 at position before and after the bottom, control member that end face central authorities have an axial elongated flute profile reveal hole 13, two sides, front and back and have a location breach 14 for the two sides central portion respectively has one, and the bottom surface is open plastic shaping box body.Respectively be provided with an outwards outstanding and bottom surface projection 15 concordant with shell 1 bottom surface in the bottom, front and back of two sidewalls of this shell 1, when the confession switch is installed on the electronic apparatus as the usefulness of angle.This projection 15 also can be located at other the suitable positions of two side or any suitable position of front and rear wall in case of necessity, and not establishing even that this projection 15 do not have yet can not.This kind installation obviously can be adopted the structure of various forms such as stop hole or fastening groove or other shape for lugs according to the installation and design of machine with structure.

Base 2 is shown in Fig. 4 A～Fig. 4 C, for forming the rectangular box-like body that the bottom that just can embed shell 1 makes progress with the opening that seals its bottom opening, by plastic shaping and have all around four

sides wall

21a, 21b, 22a, 22b and a bottom 23, the outside central upper of two sidewall 22a, 22b respectively is provided with the triangle engaging protrusion 24 of a upper-thin-lower-thick, just can snap in the stop hole 11 of above-mentioned shell and base 2 and shell 1 are combined as a whole.Bottom 23 inner faces are provided with contact conductive plate 20a, the 20b that two parallel longitudinals extend and be symmetry, it is protruding that the side near sidewall 22a, the 22b of base 2 of each

conductive plate

20a, 20b respectively is provided with pair of

end pin

25a, 25b, when shell 1 is placed on the base 2, this two

opposite end pin

25a, 25b just can be protruding from the bottom notch 12 of the two side faces of shell 1, so that the external power supply circuit.Again, the both sides inwall of base 2 nearby quadrate part is provided with a pair of U font groove 26 that extends toward the below from the top opening edge, and 34 two ends, hinge portion that just can hold control member 3 embed and pivot is moving.

In addition, bottom 23 central authorities of base 2 are provided with vertical parting bead 27 two

conductive plate

20a, 20b are separated, the outside of front and rear wall 21a, 21b respectively is provided with a bead 210 to accept the front and rear wall root edge of shell 1, and wherein rear flange central authorities are provided with the breach 14 that positioning protrusion 211 just can embed shell 1 again.

Control member 3, shown in Fig. 2,3 and 5, by vertical section is the hook-shaped base portion 31 that a J type and a side have side plate 33, be darted at the end face central authorities of this base portion 31 and slightly be fan-shaped tabular operating portion 32 to what extended the back upper place, be located at the side plate 33 of base portion 31 1 sides, and constituted with the direction vertical (promptly laterally) the outstanding hinge portion 34 that respectively stretches out with axially being of base portion 31 from anterior inside and outside of side plate 33.Hinge portion 34 is by the major axis 34a that extend towards sidewall 22a in the side plate 33 and constituted towards the coaxial some minor axis 34b of giving prominence to of opposite side wall 22b from side plate 33 outside, the pivot that the can be considered single shaft in fact spring supporting axis of holding concurrently.The above-mentioned control member 3 that comprises base portion 31, operating portion 32, side plate 33 and pivot 34 4 parts is with integrally moulded.The side plate 33 inboard lower edges of control member 3 are provided with the retaining piece 35 of an evagination, in order to an interior pin of block spring 4.The control member 3 that so constitutes is borrowed in the rotatable groove 26 that embeds base 2 freely of two ends 34a, the 34b of hinge portion 34 and operating portion 32 is located in the interior volume that shell 1 and base 2 are surrounded from the dew hole of shell 1 13 outstanding states.

Helical spring 4 is as shown in Figure 6, form have the outstanding linking part 41 of a pair of U font with central authorities link to each other be symmetry and on concentric with the special-shaped helical spring of coil portion 42a, the 42b of forward and reverse coiling.The free end of each

coil portion

42a, 42b has a front end and curves circular arc toward the extension contact 43a of foot, the 43b that upwarp, and this two contact 43a of foot, 43b extend on different up and down planes with linking part 41 backward.So the spring 4 that constitutes is inserted in hinge portion 34a by

coil portion

42a, 42b, and makes linking part 41 be connected to the top underside of hook-shaped base portion 31 of control member 3 and foot's 43b card to end above the retaining piece 35 and be positioned control member 3 inside.The contact 43a of foot, 43b all 34 extend to the hollow chamber rear portion of base 2 to the back lower place from the hinge portion.

Fig. 7 to Fig. 9 represents another embodiment of the utility model push switch, formation by this example is identical with previous embodiment basically, the formation of different just control members 3 and helical spring 4, therefore all in this example identical or suitable members or part all adopt the identity element symbology, and it is omit its explanation, in order to avoid tediously long.

In this example, control member 3 is by plate shaped base portion 31, be darted at the operating portion 32 of these base portion 31 end face central authorities, be located at that central authorities are vertically extending central dividing plate 33A forward and downward below the base portion 31, and the front part sides of dividing plate 33A is symmetry and outwards constitutes the coaxial outstanding hinge portion 34 that contains left and right

axial region

34a, 34b since then.The top of dividing plate 33A is positioned at base portion 31 belows and is provided with a rectangular aperture 36, and one side, bottom is positioned at the retaining piece 35 that 34 belows, hinge portion are located at block spring foot.

In precedent, spring 4 adopts the right and left one-body molded around the coil of volume with positive and negative two directions, but then adopts two to constitute to

coil shape spring

42a, 42b around volume with positive and negative two respectively in this example as shown in figure 10.Spring 42a has contact and use the 44a of foot, spring 42b to have contact with the 43b of foot and curve 90 and spend the 44b of foot of extension vertically with 43a of foot and location.This two

spring

42a, 42b are inserted in structure axle 34a, the 34b of dividing plate 33A both sides respectively, and make the 44b of foot of spring 42b pass that the 44a of foot that opening 36 is crimped on another spring 42a goes up and the 43b of another foot is limited on the retaining piece 35 and locatees.

Secondly, just having as constituted above, the assembling situation of member is described as follows:

At first, spring 4 is inserted in the hinge portion 34 (34a) of control member 3 with the downward state of the 43a of foot, 43b, and the 43b of foot of inboard slightly upwards exerted pressure after its aperture slightly diminishes, shift the end onto along pivot 34, release pressure immediately, the base end part of the 43b of foot are that own elasticity is when being crimped on retaining

piece

35,41 of linking parts are below top elasticity is connected to the base portion 31 of control member 3, so, spring 4 promptly constitutes an assembly with control member 3, can not come off.Then with control member 3 with operating portion 32 upwards 34 two ends, hinge portion two grooves 26 that align the base 2 that opening makes progress pack in the base 2, hinge portion 34 promptly embeds in the groove 26, the free end of the 43a of foot of spring 4 touches conductive plate 20a simultaneously, because it is big that the free opening angle that 43a of foot and linking part are 41 is set at the angle that assembles, at this moment, hinge portion 34 is the top at groove 26, do not locate at the bottom of entering semi-circular groove, continue it, the projection 211 that shell 1 is aimed at bases 2 with the operating portion 32 that reveals hole 13 alignment function members 3 and breach 14 is slightly exerted pressure down from the top and is embedded in the peristome of base 2, then engaging protrusion 24 promptly borrows the base 2 and the institute of the material tool elasticity of shell 1 own to snap in the stop hole 11, hinge portion 34 also drops to the bottom of groove 26 and locatees simultaneously, so, shell 1 is the peristome of closed base 2, and the assembling of whole push switch is promptly accused and finished.At this moment, the 43a of contact foot of spring 4 is elasticity and is crimped on above the conductive plate 20a another contact 43b of foot and then presses the start distance with connecing at a distance of one above the conductive plate 20b, only can contact with another conductive plate 20b when operating portion 32 is down pushed.

It more than is the assembled condition explanation of the utility model first embodiment, assembled condition as for second embodiment, except two

spring

42a, 42b are inserted in

hinge portion

34a, 34b respectively, and the 44b of foot that makes spring 42b passes the opening 36 of dividing plate 33A, be crimped on the 44a of foot of another spring 42a and be outside the contact condition, other assemble gimmick and aforementioned identical, so do not repeat them here.

Embodiment of the present utility model is only for being limited the utility model for example, any with the various variations that are contemplated that the basis substantially and form of the present utility model all in coverage of the present utility model.

Claims

1. push switch, by: shell, be provided with the base of contact with conductive plate, control member and spring constitute;

It is characterized in that: this shell forms the box-like body of bottom surface opening, and its roof has a long groove shape operating portion and reveals the hole, and the central upper of two side is respectively equipped with the base stop hole that is relative mutually and respectively is provided with the pair of end pin in the front and rear part lower edge stretches out breach; Base forms top opening and can embed the interior box-like body of shell bottom surface opening, its inner face bottom is provided with two apart from one another by the above-mentioned conductive plate that extends in parallel vertically, the outside central upper of two sides respectively is provided with an engaging protrusion to evagination, nearly end of inner face then respectively is provided with one and is relative pivot engaging groove, and this base is borrowed in the base stop hole that above-mentioned engaging protrusion snaps in shell and is combined as a whole with shell; And be nested with helical spring on the hinge portion of substrate front lower place and on substrate, have on the control member of prominent operating portion, borrow the two ends, hinge portion to embed in the above-mentioned pivot engaging groove and operating portion reveals the hole from operating portion and exposes shell, but be housed in base and enclosure pressing operation, the frequent elasticity of a wherein helical spring foot section is crimped on one of conductive plate, and another leg then keeps a pressing operation distance with another conductive plate.

2. push switch according to claim 1, the periphery wall that it is characterized in that this shell are formed with several and install and use jut admittedly.

3. push switch according to claim 2 is characterized in that arbitrary or both central root edge is provided with a location breach in the front and back walls of this shell.

4. push switch according to claim 1, the bottom inner face central authorities that it is characterized in that this base are formed with the axial parting bead that two conductive plates are separated, and are provided with the locator protrusions that just can embed the above-mentioned locating notch of shell in one of front and back walls or both outside central lower.

5. push switch according to claim 4, two conductive plates that it is characterized in that this base respectively have the pair of end pin to pass the breach of shell below from two lower sidewall respectively protruding, external external circuit or power supply.

6. push switch according to claim 1, it is characterized in that being provided with the pivot support plate that extends downward vertically below the base portion of this control member, the two ends of hinge portion protrude in the both sides of this support plate, and a side lower part of this support plate is provided with the retaining piece of a foot of the above-mentioned spring of block.

7. push switch according to claim 1, it is characterized in that this helical spring forms and has a pair of linking part of borrowing the U oxbow of central authorities and link to each other and be symmetry, mutually with incorgruous special helical spring around the spring coil portion of rolling up, each free end of above-mentioned coil portion has the terminal one-tenth of end arc-shaped bend end, and tiltedly stretches to the back lower place with different angles.

8. push switch according to claim 7, it is characterized in that this helical spring constitutes with the independent spring coil of different directions around volume by two, wherein a coil has the foot that connects of a frequent electral junction ground overlap joint or a closely connected corresponding foot in another coil, and one extend and be contacted with the contact foot of an above-mentioned conductive plate to the back lower place, another coil then has with above-mentioned and connects the above-mentioned corresponding foot that foot joins, and one to the back lower place extend and with the contact foot of another conductive plate at a distance of the gap of a pressing operation distance.