CN103413699A

CN103413699A - Microswitch

Info

Publication number: CN103413699A
Application number: CN2013103838919A
Authority: CN
Inventors: 史建敏; 赵绪怀; 张莉; 崔艳梅; 王云香; 丁乡
Original assignee: SHIJIAZHUANG NO850 ELECTRONIC Co Ltd
Current assignee: China one development 850 Electronics Co., Ltd.
Priority date: 2013-08-29
Filing date: 2013-08-29
Publication date: 2013-11-27
Anticipated expiration: 2033-08-29
Also published as: CN103413699B

Abstract

The invention provides a microswitch which comprises a shell body of a U-shaped structure and two electrode plates connected on the inner wall of the shell body in an inserting mode. Contacting components are connected with the electrode plates in a penetrating mode. Each contacting component comprises three contacting points which are arranged side by side. An inner stopping block is arranged in the shell body. Grooves opposite to the contacting components are formed in the side faces, opposite to the electrode plates, of the inner stopping block. Contacting spring pieces are placed in the grooves. A core hole is formed in the center of the inner stopping block. A spring is placed in the core hole. A pushing rod penetrates through the shell body, the core hole of the inner stopping block and the spring. An outer blocking piece is arranged on the outer portion of the shell body in a sleeved mode. By pushing the pushing rod, the inner stopping block can be driven to move in the shell body, and when the inner stopping block moves, and the contacting spring pieces on the inner stopping block can be connected or disconnected with the corresponding contacting points of the contacting components at the same time respectively, namely connecting or disconnecting operation of a plurality of sets of circuits can be achieved at the same time. The microswitch is easy to operate, and development in the directions such as microminiaturization of the microswitch can be benefited.

Description

A kind of sensitive switch

Technical field

The present invention relates to a kind of switch, specifically a kind of sensitive switch.

Background technology

Sensitive switch is widely used in the control appliance of the industries such as all kinds of machinery, electronics, medical treatment.By market survey information, show: not only in military domain such as modern high-tech Aero-Space, weaponry, electronicss, in the requirement of each civilian electric field to the sensitive switch product, not only be confined to the on-off action of single group, but proposed the requirements at the higher level such as microminiaturization, high density, modularization and lightweight.At present, the domestic production of research and development to the sensitive switch series of products is in scattered, disordered state, and properties of product are on the low side, and structure adopts single reed contact more, by operating a button, realizes energising or the outage of set of circuits.When if electric equipment needs two groups of circuit to move simultaneously to control its energising or outage, just need two groups of switches to coordinate, but common people are obviously more inconvenient during with two groups of switches of a manual manipulation; And, two groups of switches are set and also make electric equipment seem succinct not, attractive in appearance; Have again, two groups of switches are set and have also limited the development of sensitive switch to microminiaturization, high density, modularization and lightweight direction.

Summary of the invention

Purpose of the present invention just is to provide a kind of sensitive switch, needs to coordinate to realize that by two groups of switches two groups of circuit move simultaneously and then cause operating that inconvenience, product design are attractive in appearance not, sensitive switch is difficult to the problem of the future developments such as microminiaturization to solve in prior art.

The present invention is achieved in that a kind of sensitive switch, comprises housing, battery lead plate, internal stop, contact spring, push rod, spring and outer catch;

The U-shaped structure that described housing is comprised of distolateral wallboard and forward and backward wallboard; In the center of described shell ends sidewall paneling, have outside push rod and bore a hole; On the outer wall of the forward and backward wallboard of described housing, have horizontal buckling groove, have lateral insert on the inwall of the forward and backward wallboard of described housing, described battery lead plate is plugged in the described slot on the forward and backward wallboard of described housing;

Cross-under has two groups of contact assemblies on described battery lead plate, and every group of described contact assembly comprises three contacts that are arranged side by side, and the tip side of described contact is positioned at the medial surface of described battery lead plate, and the terminals of described contact reach the lateral surface of described battery lead plate; Every group of described contact starts to be labeled as successively the first contact, the second contact and the 3rd contact from an end of described shell ends sidewall paneling, and the tip side of the second contact in the middle of wherein being positioned at protrudes from the tip side of the first contact and the 3rd contact on both sides;

Described internal stop is arranged in described housing; The end face of described internal stop have with described battery lead plate on two groups of described contact assemblies relative two grooves up and down, described contact spring is placed in each described groove; In the centre of described internal stop, have the core hole of lateral direction penetrating, the pore-throat section that described core hole dwindles for aperture near a section of described shell ends sidewall paneling, the external port of described pore-throat section is bored a hole relative outward with the described push rod on described housing; Described push rod inserts and runs through described core hole from the pore-throat section external port of described internal stop; On described push rod, be provided with convex shoulder, described convex shoulder is stuck in the pore-throat section external port place of described internal stop; One end of described push rod is from passing the distolateral wallboard of described housing perforation outside described push rod, the other end of described push rod is from passing the described core hole of described internal stop;

Described outer catch is arranged on a side of described housing, for the described battery lead plate of block and described internal stop; On described outer catch, be provided with two overhanging arms, two described overhanging arms, from the described buckling groove on the forward and backward wallboard of described housing, passing, snap onto on the distolateral wallboard of described housing; On described outer catch, having the through hole relative with the described core hole on described internal stop;

In the described core hole of described spring-compressed in described internal stop, and be socketed on the described push rod inserted in described core hole; One end of described spring withstands on the inboard of the pore-throat section in described core hole, and the other end withstands on described outer catch;

Under nature, described internal stop is subjected to the thrust of described spring, leans on the distolateral wallboard of described housing, and described contact spring contacts with the tip side of described the first contact and described the second contact; When external force promoted described push rod, described internal stop was with described push rod to described outer catch one side shifting, and described contact spring namely changes into the tip side of described the second contact and described the 3rd contact and contacts; After thrust disappeared, described spring promoted described internal stop return, and described contact spring returns to the contacted initial condition of tip side with described the first contact and described the second contact.

In described housing, be plugged with two described battery lead plates, two described battery lead plates lay respectively at the upper and lower faces of described internal stop; The upper and lower faces of described internal stop have with two described battery lead plates on described contact assembly relative groove up and down, described contact spring is placed in each described groove.

Described contact spring bending is the wedge shape with opening, while being placed in described groove, keeps to the state of notch top expansion.

Place, middle position in the bottom surface of described groove is provided with fin, for described contact spring is formed to the seesaw fulcrum.

Arranged outside at described outer catch has the collar that the traversing through end of described push rod is carried out to clamping.

The present invention's cross-under on battery lead plate has two groups of contact assemblies, and every group of described contact assembly comprises three contacts that are arranged side by side; The end face of the internal stop in housing have with described battery lead plate on two groups of described contact assemblies relative two grooves up and down, in each described groove, be placed with a contact spring.Applied thrust on push rod, described internal stop and on contact spring with outside catch one side shifting of described push rod, in moving process, two contact springs will change simultaneously with the contact assembly relative with it in contact relation between the tip side of three contacts, that is: two contact springs are contacted by the tip side with the first contact and the second contact simultaneously, be converted to the tip side of described the second contact and described the 3rd contact and contact, thereby energising or the outage of two groups of circuit have been realized simultaneously, therefore, the present invention can realize energising or the power operation of two groups of circuit by applied thrust on a push rod.

And, if want, realize energising or the power operation of more groups of circuit, only need on described battery lead plate, set up several groups of contact assemblies, simultaneously on described internal stop, set up respective numbers, and with described contact assembly relative groove up and down, and contact spring of placement gets final product in each described groove, therefore, compared with prior art, the present invention has great breakthrough aspect the energising that solves many group circuit or power operation, make operation not only simple and convenient, and the profile of product is more succinct, attractive in appearance, also be beneficial to sensitive switch to microminiaturization, high density, the development of modularization and lightweight direction.

The accompanying drawing explanation

Fig. 1 is axonometric drawing of the present invention.

Fig. 2 is structural representation of the present invention.

Fig. 3 ~ Fig. 5 is the conversion schematic diagram of contact relation between contact spring and each contact in promoting the push rod process.

In figure: 1, housing, 1-1, slot, 1-2, buckling groove, 2, battery lead plate, 2-1, the first contact, 2-2, the second contact, 2-3, the 3rd contact, 2-4, boss, 2-5, tip side, 3, push rod, 3-1, convex shoulder, 4, internal stop, 4-1, groove, 4-2, fin, 4-3, core hole, 5, contact spring, 6, outer catch, 6-1, claw hook, 6-2, through hole, 6-3, overhanging arm, 7, spring, 8, collar.

Embodiment

As depicted in figs. 1 and 2, the present invention includes housing 1, battery lead plate 2, internal stop 4, contact spring 5, push rod 3, spring 7 and outer catch 6.

The U-shaped structure that housing 1 is comprised of distolateral wallboard and forward and backward wallboard.In the center of housing 1 distolateral wallboard, have outside push rod and bore a hole.On the outer wall of housing 1 forward and backward wallboard, have laterally (being the incline direction of housing 1) buckling groove 1-2; Both sides at the inwall of housing 1 forward and backward wallboard have lateral insert 1-1, and slot 1-1 mono-end contacts with distolateral wallboard, and the other end reaches the end of forward and backward wallboard.Two battery lead plates 2 relatively are plugged in the slot 1-1 on forward and backward wallboard up and down.

All cross-under has two groups of contact assemblies on each battery lead plate 2, two groups of contact assemblies lay respectively at the both sides of battery lead plate 2, between two groups of contact assemblies of battery lead plate 2 lateral surfaces, be provided with pit, between two groups of contact assemblies of battery lead plate 2 medial surfaces, be provided with boss 2-4, pit is relative up and down with boss 2-4.

Each group contact assembly includes three contacts of arranging in order in housing 1 incline direction, since three nearest contacts of the distolateral wallboard of contact middle distance, three contacts sequentially is labeled as to the first contact 2-1, the second contact 2-2 and the 3rd contact 2-3.Contact on two battery lead plates 2 is relative up and down.The terminals of contact reach the lateral surface of battery lead plate 2, and the tip side 2-5 of contact is positioned at the medial surface of battery lead plate 2; The tip side of the second contact 2-2 in the middle of being positioned in three contacts protrudes from the first contact 2-1 on both sides and the tip side of the 3rd contact 2-3.

Internal stop 4 is arranged in housing 1.On internal stop 4 two sides relative with two battery lead plates 2 (or claiming end face), have with battery lead plate 2 on two contact assemblies relative two groove 4-1 up and down, contact spring 5 is placed in each groove 4-1.Place, middle position in the bottom surface of each groove 4-1 is provided with fin 4-2, thereby fin 4-2 forms the seesaw fulcrums for the contact spring 5 supported on it.The wedge structure with opening of contact spring 5 for forming by bending reed always, when it is placed in groove 4-1, keep to the state of notch top expansion.When internal stop 4 moved left and right in housing 1, the contact spring 5 on internal stop 4 was also along with movement, and because the fin 4-2 in groove 4-1 plays the seesaw point action to contact spring 5, therefore, " seesaw " motion will occur contact spring 5 in moving process; Tip side due to the second contact 2-2 middle in the contact assembly relative with contact spring 5 protrudes from the first contact 2-1 on both sides and the tip side of the 3rd contact 2-3 again, therefore, in contact spring 5 moving process all the time with the contact assembly relative with it in the tip side of intermediate contact (i.e. the second contact 2-2) contact.

The pore-throat section that 4-3，Xin hole, the core hole 4-3 that has lateral direction penetrating in the centre of internal stop 4 dwindles for aperture near one section of housing 1 distolateral wallboard, the external port of pore-throat section is bored a hole relative outward with the push rod on housing 1.Push rod 3 inserts and passes through feedthrough hole 4-3 from the pore-throat section external port of internal stop 4.On push rod 3, be provided with convex shoulder 3-1, convex shoulder 3-1 is stuck in the pore-throat section external port place of internal stop 4, and along with the movement of push rod 3, convex shoulder 3-1 also may be stuck in outer perforation place of push rod on housing 1.One end of push rod 3 is from passing the distolateral wallboard of housing 1 perforation outside the push rod on housing 1, the other end of push rod 3 is from passing the core hole 4-3 of internal stop 4.

Outer catch 6 is arranged on a side of housing 1, for block battery lead plate 2 and internal stop 4.Catch 6 is provided with two overhanging arm 6-3 outside, and respectively there is a claw hook 6-1 end of two overhanging arm 6-3, and two overhanging arm 6-3, from the buckling groove 1-2 on the forward and backward wallboard of housing 1, passing, snap onto by claw hook 6-1 on the distolateral wallboard of housing 1.On catch 6, have outside the through hole 6-2 relative with core hole 4-3 on internal stop 4.

Spring 7 is placed in the core hole 4-3 of internal stop 4, and is socketed on the push rod 3 inserted in the 4-3 of core hole.Spring 7 is in the raw the time, and the one end withstands on the inboard of the pore-throat section of core hole 4-3, and the other end withstands on outer catch 6.Now, internal stop 4 leans on the distolateral wallboard of housing 1.

Push rod 3 passes from the through hole 6-2 on outer catch 6 after passing core hole 4-3.The outside of catch 6 can arrange the collar 8 that the traversing through end of push rod 3 is carried out to clamping outside, by this collar 8 is set, can prevent because spring 7 elastic force eject the generation of phenomenon by outer catch 6 greatly, thereby reinforce the relation that is fastenedly connected between outer catch 6 and housing 1.

The present invention can be according to following steps when concrete assembling: at first by battery lead plate 2(on it cross-under the corresponding contact assembly is arranged) insert in the slot 1-1 of housing 1 forward and backward wallboard; In four groove 4-1 of internal stop 4, place respectively a contact spring 5 afterwards, again spring 7 is put into to the core hole 4-3 of internal stop 4, then push rod 3 is inserted in the spring 7 in the 4-3 of 4-3Ji Xin hole, core hole from core hole 4-3 pore-throat section external port, and the convex shoulder 3-1 that makes push rod 3 is stuck in the 4-3 pore-throat section external port place, core hole of internal stop 4, the driving mechanism of internal stop 4, contact spring 5, push rod 3 and spring 7 these sensitive switches of formation; Then driving mechanism is packed in housing 1, when driving mechanism is packed into, should make the distolateral wallboard of the core hole 4-3 pore-throat section external port of internal stop 4 towards housing 1, and the outer perforation of push rod that push rod 3 is passed on the distolateral wallboard of housing 1 reaches housing 1 outside; Finally at the upper outside catch 6 of housing 1 outer cover, the through hole 6-2 that one end that should make push rod 3 pass internal stop 4 core hole 4-3 during the outer catch 6 of cover passes on outer catch 6 reaches outer catch 6 outsides, one end of spring 7 is withstood on outer catch 6, on the push rod 3 in catch 6 outsides, put collar 8 outside again, so far assembly work completes.

The spring 7 that is positioned at housing 1 is in the raw the time, internal stop 4 leans the distolateral wallboard at housing 1, now, as shown in Figure 3, contact spring 5 micro-sticking up (namely to micro-the sticking up of the first contact 2-1 direction) left under the supporting role of fin 4-2, thereby make the first contact 2-1 in contact spring 5 and contact assembly and the tip side of the second contact 2-2 contact, with the tip side of the 3rd contact 2-3, do not contact (each contact all is connected to respective lines in housing 1 outside), the first contact 2-1 and the second contact 2-2 are switched on, and realize a kind of connected state of circuit, applied thrust on the push rod 3 in the distolateral wallboard of housing 1 outside, push rod 3 is moved in interior outside catch 6 directions of housing 1, the movement of push rod 3 will promote internal stop 4 in the interior movement of housing 1 by convex shoulder 3-1, internal stop 4 moves the contact spring 5 that can drive on it and moves, contact spring 5 will separate with the tip side of the first contact 2-1 gradually in moving process, reach state as shown in Figure 4, now, contact spring 5 is in poised state under the supporting role of fin 4-2, 5 tip sides with the second contact 2-2 of contact spring contact, with the first contact 2-1, all do not contact with the tip side of the 3rd contact 2-3, now circuit is in off state, along with continuing outside catch 6 directions, moves push rod 3, contact spring 5 will contact with the tip side of the 3rd contact 2-3 gradually, as shown in Figure 5, contact spring 5 micro-sticking up (namely to micro-the sticking up of the 3rd contact 2-3 direction) to the right under the supporting role of fin 4-2, contact spring 5 contacts with the tip side of the second contact 2-2 and the 3rd contact 2-3, with the tip side of the first contact 2-1, do not contact, the second contact 2-2 and the 3rd contact 2-3 are switched on, and realize the another kind of connected state of circuit.

In the interior outside catch 6 direction moving process of housing 1, what the spring 7 in housing 1 will be along with internal stop 4 is mobile and compressed when push rod 3.When removing the thrust be applied on push rod 3, spring 7 also will recover deformation, the elastic force that spring 7 discharges while recovering deformation promotes internal stop 4 and moves to the distolateral wallboard direction of housing 1, the movement of internal stop 4 also promotes push rod 3 by convex shoulder 3-1 and moves to the distolateral wallboard direction of housing 1, when the convex shoulder 3-1 on push rod 3 contacts with the inwall of housing 1 distolateral wallboard, push rod 3 will no longer move, and now spring 7 also returns to nature, and internal stop 4 leans on the distolateral wallboard of housing 1.In spring 7 recovers the process of deformation, contact spring 5 on internal stop 4 is contacted (as shown in Figure 5) by the tip side with the second contact 2-2 and the 3rd contact 2-3, only change into and contact (as shown in Figure 4) with the tip side of the second contact 2-2, after change into again with the tip side of the first contact 2-1 and the second contact 2-2 and contact (as shown in Figure 3), so far complete the one-off circulation of sensitive switch.

Above-described embodiment, by push rod of operation, can make four groups of circuit realize simultaneously energising or power operation.Realize that if want two groups or six groups of circuit switch on simultaneously or cut off the power supply, can on two relative battery lead plates, distinguish one group or three groups contact assemblies of cross-under, at internal stop and two battery lead plates, on relative two sides, offer respectively one or three grooves respectively, groove is relative up and down with the contact assembly on battery lead plate, in groove, place contact spring, afterwards by applied thrust on push rod, energising or power operation when can realize two groups or six groups of circuit.

As distortion, realize that if want two groups of circuit switch on simultaneously or cut off the power supply, all right only two groups of contact assemblies of cross-under on a battery lead plate, on the side of the internal stop relative with this battery lead plate, offer two with battery lead plate on two groups of contact assemblies relative groove up and down, in each groove, place contact spring and get final product.

If want, realize energising or the outage of set of circuits, only need be on a battery lead plate one group of contact assembly of cross-under, on the side of the internal stop relative with this battery lead plate, offer one with battery lead plate on contact assembly relative groove up and down, in groove, place contact spring and get final product.

In like manner, if want, realize energising or the outages of many groups such as three groups or five groups circuit, only need be on battery lead plate the contact assemblies such as three groups of cross-under or five groups, on the internal stop side relative with battery lead plate, offer with battery lead plate on contact assembly grooves such as relative three or five up and down, in each groove, place contact spring to get final product; As for the concrete set-up modes of many groups contact assembly cross-under such as three groups or five groups on one or two battery lead plate, multiple different form can be arranged, do not repeat them here.

Claims

1. a sensitive switch, is characterized in that, comprises housing, battery lead plate, internal stop, contact spring, push rod, spring and outer catch;

2. sensitive switch according to claim 1, is characterized in that, in described housing, is plugged with two described battery lead plates, and two described battery lead plates lay respectively at the upper and lower faces of described internal stop; The upper and lower faces of described internal stop have with two described battery lead plates on described contact assembly relative groove up and down, described contact spring is placed in each described groove.

3. sensitive switch according to claim 1 and 2, is characterized in that, described contact spring bending is the wedge shape with opening, while being placed in described groove, keeps to the state of notch top expansion.

4. sensitive switch according to claim 3, is characterized in that, at the place, middle position of the bottom surface of described groove, is provided with fin, for described contact spring is formed to the seesaw fulcrum.

5. sensitive switch according to claim 3, is characterized in that, in the arranged outside of described outer catch, the collar that the traversing through end of described push rod is carried out to clamping arranged.