CN201112202Y

CN201112202Y - Microswitch

Info

Publication number: CN201112202Y
Application number: CNU2007200078853U
Authority: CN
Inventors: 张军峰
Original assignee: XIAMEN GOLDEN-SWITCH ELECTRONICS Co Ltd
Current assignee: XIAMEN GOLDEN-SWITCH ELECTRONICS Co Ltd
Priority date: 2007-08-07
Filing date: 2007-08-07
Publication date: 2008-09-10
Anticipated expiration: 2017-08-07

Abstract

The utility model discloses a micro switch which comprises a plastic body which is formed by clasping a base and an upper cover, wherein, a side face of the base is provided with a sub-switch and two groups of wiring terminals and a group of supports are arranged on the base; inside the base, a movable chip is arranged between the two groups of wiring terminals and a pressing part at the end of the sub-switch and formed by a leveling bar at the center and reeds with fractures in the middle at both sides of the movable chip; a spring is positioned under the movable chip and at the bottom of the pressing part corresponding to the sub-switch; the support is arranged at one end in the base and bifurcates in a 'Y' shape; the reeds with fractures in the middle at both sides of the movable chip are supported in grooves at both sides of 'Y'-shaped branches by virtue of the fractures and the leveling bar runs through and is arranged between the 'Y'-shaped branches. The micro switch of the utility model has the advantages of simple and novel structure, good heat dissipation, strong generality of modules and low cost and both the high and low gram forces can be applied to high current.

Description

A kind of sensitive switch

Technical field

The utility model relates to a kind of sensitive switch, is the interior fittings that is used for various electric equipments.

Background technology

In the prior art, the structure of sensitive switch is of all kinds, and the patent of relevant sensitive switch is also innumerable.

As shown in Figure 1, be a kind of common sensitive switch, comprise pedestal 1 ', operation strip 6 ', binding post 7 ', support 8 ', reed 9 ' and lever 10 ', support 8 ' is two " L " types that connect up and down, support 8 ' is fixed on the pedestal 1 ', and an end rotational support of lever 10 ' is on following " L " of support 8 ' type, and operation strip 6 ' is enclosed within lever 10 ' and goes up and be horizontally installed in the pedestal 1 ', one end of reed 9 ' is connected with support 8 ', and the other end is connected with operation strip 6 '.When switch 2 ' is pressed down, can promote lever 10 ' and operation strip 6 ' simultaneously, operation strip 6 ' is pushed the back conversion and connects with binding post 7 '; Compress switch son 2 ' time under stopping, being subjected to reed 9 ' effect, lever 10 ' and operation strip 6 ' reset.

There is following defective in the sensitive switch of this structure:

The first, the member in the shell 1 ' is many, complex structure, manufacturing cost height;

The second, shell 1 ' inner space is little, and member is crowded mutually, is unfavorable for heat radiation, even easy sintering;

When three, switch 2 ' is pressed down, need overcome holding of reed 9 ', lever 10 ', required pressure is bigger, and it is low to press sensitivity, and feel is poor, and useful life is short; Again owing to be extruded the thrust that elastic force that the arc of formation produces moves up and down and produces greater than operation strip 6 ' usually when reed 9 ', for two-way switching sensitive switch, contact force on two binding posts differs in size, so light gram force switch is not suitable for super-high-current;

Four, be used on the pedestal 1 ' the to plant number of jack 11 ' of binding post 7 ' is corresponding with concrete sensitive switch specification, promptly often drive sensitive switch and normally closed sensitive switch and all only on pedestal 1 ', offer a jack 11 ', have only the sensitive switch of two-way switching just on pedestal 1 ', to offer two jacks 11 ', so, the processing mold of one cover pedestal 1 ' only is applicable to the sensitive switch of producing a kind of specification, die cost height.

The utility model content

Main purpose of the present utility model is to be to provide a kind of sensitive switch, but that it has is simple in structure, thermal diffusivity good, the equal super-high-current of light and heavy gram force, the advantage that cost is low.

Secondary objective of the present utility model is to be to provide a kind of sensitive switch, and it has the mould highly versatile, the advantage that cost is low.

For reaching above-mentioned purpose, solution of the present utility model is:

A kind of sensitive switch, comprise by a pedestal and a loam cake and fasten the plastic body that forms, this pedestal one side is provided with switch, the terminal pressing part that forms of switch, on pedestal, establish two set of connections terminals and a pack support again, in pedestal, be provided with an operation strip between the pressing part of described two set of connections terminals and switch end, operation strip is made of the reed of fracture in the middle of flat bar that is positioned at central authorities and the both sides, flat bar and reed are connected as a single entity at two ends and form, the below of operation strip, be provided with a spring in pressing part bottom to inductive switch, the end that support is positioned at pedestal is " bifurcation " type bifurcated, form groove on the both sides of " bifurcation " type bifurcated, the reed of fracture relies on fracture place to be supported in the groove of " bifurcation " type bifurcated both sides in the middle of the operation strip both sides, and flat bar provides between " bifurcation " type bifurcated.

The binding post of corresponding two-way switching sensitive switch is offered two jacks on the said base, and the stopple that cooperates with jack of outfit.

After adopting such scheme, the utility model compared with prior art has following advantage:

The first, the member in the shell has obviously lacked a lever than prior art, and reed peace bar one-body molded be operation strip, designs simplification, low cost of manufacture;

The second, member is few, and the enclosure space enlarges relatively, and member is loose mutually, helps heat radiation, avoids sintering;

Three, again owing to the elastic force of the arc generation that is extruded formation when reed 32 and the thrust sizableness that flat bar moves up and down and produces, when promptly being used for two-way switching sensitive switch, contact force sizableness on two binding posts, and during the identical gram force of same relatively type of switch, the contact force when closed is bigger, so, be fit to big electric current, good hand touch presses highly sensitively, prolongs useful life;

Four, be used on the pedestal the to plant jack number unification of binding post is two, and outfit stopple, the pedestal processing mold only needs a pair, and the pedestal of producing also has only a kind of structure, during practical set, can select suitable insertion hole groups attaching line terminals as required, often drive sensitive switch, normally closed sensitive switch or two-way switching sensitive switch to form, so, simplified the mould of pedestal greatly, one secondary mould can be applicable to the sensitive switch of three kinds of specifications simultaneously, and die cost reduces.

Description of drawings

Fig. 1 is a kind of structural representation of common sensitive switch;

Fig. 2 is the three-dimensional exploded view of the utility model preferred embodiment;

Fig. 3 is the combination schematic diagram that the utility model is applicable to open type;

Fig. 4 is the combination schematic diagram that the utility model is applicable to closed type;

Fig. 5 is the combination schematic diagram that the utility model is applicable to two-way switch type.

Embodiment

At first, see also shown in Figure 2ly, a kind of sensitive switch that the utility model discloses comprises pedestal 1, switch 2, operation strip 3, binding post 4, support 5 and spring 6.

Wherein, pedestal 1 has the containing cavity that holds other member, and have interspersed switch 2 through hole 11, intert support 5 hole 12, intert binding post 4 jack 13 and locate the

slot

14,15 of each member.Corresponding two jacks 13, pedestal 1 also has been equipped with the stopple 16 that cooperates with jack 13.

Binding post 4 interts in jack 13, and is positioned in the slot 15, is fixed on thus on the pedestal 1.

Support 5 interts in hole 12, and is positioned in the slot 14, is fixed on thus on the pedestal 1.The end that support 5 is positioned at pedestal is " bifurcation " type bifurcated, forms groove 51 on the both sides of " bifurcation " type bifurcated.

Operation strip 3 is located in the pedestal, 21 of the pressing parts of described two set of connections terminals 4 and switch 2 ends.Operation strip 3 is made of the reed 32 of fracture in the middle of flat bar 31 that is positioned at central authorities and the both sides, and flat bar 31 and both sides are connected as a single entity at two ends and form.One end of flat bar 31 is corresponding with binding post 4, and the other end below of operation strip 3 is provided with a spring 6 in pressing part 21 bottoms to inductive switch 2.The reed 32 of fracture in the middle of operation strip 3 both sides relies on fracture place to be supported in the groove 51 of " bifurcation " type bifurcated both sides, and flat bar 31 provides between " bifurcation " type bifurcated.

Switch 2 interts in the through hole 11 of shell 1, and the flat bar 31 of the corresponding operation strip 3 in the bottom of switch 2 forms pressing part 21, cooperates with flat bar 31 with assurance, and accurately descends pressing bar 31.

During assembling, can select suitable jack 13 to assemble binding post 4 as required, and with stopple 16 no jack 13 is blocked, promptly can form as shown in Figure 3 often drive sensitive switch, normally closed sensitive switch as shown in Figure 4 or two-way switching sensitive switch as shown in Figure 5.

During use, when switch 2 is pressed down, can promote operation strip 3, the supporting that makes the other end of flat bar 31 overcome spring 6 is changeed downwards, and the end conversion that drives flat bar 31 is switched on or switched off with respective terminal 4, and Fig. 3 is and binding post 4 is connected, Fig. 4 disconnects with binding post 4, Fig. 5 connects with following binding post 4 and disconnects with top binding post 4, spring 6 energy storage simultaneously, and reed 32 is the also energy storage of distortion arc because of extruding; It is sub 2 the time to compress switch under stopping, and is subjected to spring 6 and reed 32 effects, and flat bar 31 resets, and waits for and working next time.During especially for two-way switching sensitive switch, owing to be extruded the move up and down thrust sizableness of generation of elastic force that the arc of formation produces and flat bar 31 when both sides reed 32, i.e. contact force sizableness on two binding posts 4, super-high-current can suit.

Member in the utility model shell 1 has obviously lacked a lever 10 ' than prior art shown in Figure 1, and the peaceful bar of reed 32 31 one-body molded be operation strip 6, designs simplification, low cost of manufacture; Pedestal 1 inner space enlarges relatively, and member is loose mutually, helps heat radiation, avoids sintering; When switch 2 was pressed down, required pressure was less, pressed highly sensitively, and good hand touch prolongs useful life; Pedestal 1 processing mold only needs a pair, the pedestal 1 of a kind of structure of producing, and applicable to the sensitive switch of three kinds of specifications, the mould applicability strengthens, and has significantly reduced the mould of pedestal 1, and die cost is minimized.

Claims

1, a kind of sensitive switch, comprise by a pedestal and a loam cake and fasten the plastic body that forms, this pedestal one side is provided with switch, the terminal pressing part that forms of switch, on pedestal, establish two set of connections terminals and a pack support again, it is characterized in that: in pedestal, be provided with an operation strip between the pressing part of described two set of connections terminals and switch end, operation strip is made of the reed of fracture in the middle of flat bar that is positioned at central authorities and the both sides, flat bar and reed are connected as a single entity at two ends and form, the below of operation strip, be provided with a spring in pressing part bottom to inductive switch, the end that support is positioned at pedestal is " bifurcation " type bifurcated, form groove on the both sides of " bifurcation " type bifurcated, the reed of fracture relies on fracture place to be supported in the groove of " bifurcation " type bifurcated both sides in the middle of the operation strip both sides, and flat bar provides between " bifurcation " type bifurcated.

2, a kind of sensitive switch as claimed in claim 1 is characterized in that: the binding post of corresponding two-way switching sensitive switch is offered two jacks on the pedestal, and the stopple that cooperates with jack of outfit.