CN206116250U - Elasticity safety switch assembly - Google Patents

Abstract

The utility model discloses an elasticity safety switch assembly, including casing and shift knob, shift knob includes silica gel cup and movable contact, and the casing is equipped with first appearance chamber, the second holds chamber, a binding post and the 2nd binding post, and silica gel cup includes chassis portion, quarrel portion, holds chamber and breath oral area, do not receive external force when extrusion as silica gel cup, silica gel cup has an elastic restoring force, and breath oral area extrusion sealed accommodation cavity is popped out and made in quarrel portion, can with first appearance chamber with hold the chamber and keep apart totally, a binding post seals, prevents effectively that steam from getting into first appearances intracavity, makes a binding post and the 2nd binding post be in complete off -state, waterproof and be difficult for making moist ageing, the security performance height.

Description

A kind of elastic safety switch module

Technical field

This utility model is related to a kind of elastic safety switch module in circuit controller.

Background technology

Switch is the device for control circuit power on/off, but due to switch in lie substantially in energization state (i.e. Voltage is maintained on live wire), therefore when the not used time is switched, the circuit in switch still leaves electricity, when liquid access switch, by Voltage is still maintained on live wire, the moment that liquid is entered makes the short circuit in switch, cause electrical equipment or switch to burn, deposit In higher safety issue.

Meanwhile, if switch long-time is in the higher environment of steam, steam is aging by acceleration switch internal circuit And oxidation, cause on-off control failure.

Therefore liquid or the circuit in moisture switch how is prevented to be a problem demanding prompt solutions.

Utility model content

The purpose of this utility model is to provide for a kind of elastic safety switch module, waterproof and non-moisture-sensitive is aging, Switch can ensure that when being not powered on which is internal in completely enclosed state, and security performance is high.

In order to realize above-mentioned utility model purpose, this utility model employs technical scheme below：A kind of elastic safety is opened Close component, including housing and shift knob；

Shift knob includes movable contact, presses splenium and the silica gel leather cup of movable telescopic reset, presses splenium positioned at housing Outward, the silica gel leather cup presses the relative end of splenium positioned at movable contact；

The housing is provided with the first cavity volume and the second cavity volume, and the first wiring for being parallelly mounted to housing side is provided with housing Terminal and the second binding post, the first binding post end are provided with the first contact site, and the first contact site is in the first cavity volume；The Two binding post ends are provided with, and second connecting portion is located in the second cavity volume, and activity is touched Head and silica gel leather cup are respectively positioned in the second cavity volume；

Silica gel leather cup includes the chassis portion of plate-like and the quarrel portion of tubulose, and the periphery in the chassis portion is mutually solid with inner walls Fixed, the junction that the accommodating chamber for accommodating movable contact, the chassis portion and quarrel portion are provided with the middle part of the quarrel portion is provided with and pushes Silica gel leather cup can allow accommodating chamber connect with the first cavity volume and close the breath oral area of accommodating chamber when silica gel leather cup resets；

By the internal stress of above-mentioned silica gel leather cup, can be using silica gel leather cup as elastic return unit, by silica gel leather cup Reset response makes breath shrink in lip, closes accommodating chamber, isolation movable contact and the first contact site.

The periphery in the chassis portion of silica gel leather cup is mutually fixed with inner walls so that silica gel leather cup by the first contact site with it is extraneous Completely cut off completely, it is effectively waterproof and dampproof, therefore splenium is being pressed for ejection or compressive state, between the first cavity volume and the second cavity volume Completely cut off by silica gel leather cup completely, steam cannot be entered in the second cavity volume by the first cavity volume.

Secondly, movable contact there is a possibility that rupture with the bearing of silica gel leather cup, therefore can by setting up breath oral area Effectively prevent the steam into accommodating chamber from entering the first cavity volume.

When shift knob pushes on movable contact is inwardly moved, press splenium and inwardly extrude silica gel leather cup, quarrel portion moves inward And extrude chassis portion and deform laterally, breath oral area is connected and is made between accommodating chamber and the first cavity volume with the outside side shifting in chassis portion Movable contact is passed through, and movable contact front end is pressed on the first contact site, and second connecting portion, movable contact and the first contact site are successively It is electrically connected, switch is in connected state；

When shift knob is not subject to external force, under the chassis portion elastic recoil effect of silica gel leather cup, quarrel portion drives and lives Moving contact is together displaced outwardly, movable contact and the first contact portion from；And cease oral area to be recovered to original position by outside, cease oral area The passage between accommodating chamber and the first cavity volume is extruded and closes, switch is off.

As further improvement of the utility model, it is additionally provided with the housing for chassis portion movement and deformation laterally Guiding conical plate, the guiding conical plate are tapered, and guiding conical plate is located between the first cavity volume and the second cavity volume, is set in the middle part of guiding conical plate There is the through hole passed through for movable contact, the through hole connects the first cavity volume and the second cavity volume.

Used as further improvement of the utility model, being additionally provided with the housing when recovering for chassis portion increases breath oral area The holding set of close encapsulation, the holding set are fixed on enclosure interior, and the holding set is annular external member, keeps set longitudinal section It is L-shaped, keep set to include sleeve and keep base plate, the quarrel portion is sheathed in sleeve；When shift knob does not receive external force extensive When restoring shape, the breath oral area is in sleeve and keeps base plate intersection to extrude and close accommodating chamber.

Used as further improvement of the utility model, the chassis portion is provided with the junction of inner walls and is sent out for chassis portion The fold ring of raw more large deformation amount, the fold ring in a ring wavy, the fold ring is integrally formed setting with chassis portion.

Used as further improvement of the utility model, the quarrel portion is additionally provided with hard set portion, institute towards the one end in outside The sidewall surfaces for stating hard set portion are provided with rigid outer layer, and hard set portion is connected with quarrel portion and synchronizing moving, the movable contact It is fixed on the middle part in hard set portion.

Used as further improvement of the utility model, the movable contact includes the contact bar portion of contact end and conduction, Bar portion lock chamber and end lock chamber are offered in the hard set portion, the end lock chamber is located at hard set portion dorsad silica gel The side of leather cup, contact bar portion is fixed on bar portion fixes intracavity, and contact end is fixed on end fixes intracavity.

Used as further improvement of the utility model, dorsad a side surface of contact bar portion is provided with and is easy to the contact end Contact end reaches end lock chamber through bar portion lock chamber and prevents the guide ring of contact end displacement, the guide ring Thickness is incremented by successively to inner side by contact end edge, and the end fixation intracavity is provided with.

Used as further improvement of the utility model, in hard set portion, the hard set portion is provided with the splenium of pressing Can bring it about the inclined-plane of axial movement, the inclined-plane is again provided with rigid outer layer when splenium is pressed by radial force.

Used as further improvement of the utility model, the chassis portion, quarrel portion and breath oral area are integrally formed setting.

Used as further improvement of the utility model, the first contact site of first binding post adopts memorial alloy material Material, the first contact site includes end, the arc contact portion and heating that contact for same movable contact make arc contact portion and movable contact Detached kink；The end is located at the two ends of the first contact site and is fixed with enclosure interior, and the bending part is in arc Between contact portion and end.

Compared with prior art, the elastic safety switch module of above-mentioned technical proposal is employed, is had the advantages that：

First, the periphery in chassis portion is connected with inner walls, can effectively will be first cavity volume and the second cavity volume of housing complete It is complete to isolate, and steam only can be entered in the second cavity volume from the junction in housing and quarrel portion, it is impossible to into the first cavity volume, it is right to increase The protection of the first binding post (the first binding post is used for same live wire connection).

2nd, as movable contact is fixed on inside silica gel leather cup, movable contact occurs slight crack in use unavoidably, Steam is possible to the gap of the inwall with movable contact Yu quarrel portion and enters receiving intracavity, now ceases oral area in silica gel leather cup resilience When, from chassis portion to quarrel portion moving process in, by movable contact be located accommodating chamber completely close, accommodating chamber is connect with first The first cavity volume that contact portion is located completely cuts off completely, even if steam enters accommodating chamber and also can be stopped by breath oral area so that whole safety open Close state of the component in disconnecting.Only external force is promoted and presses splenium, movable contact is moved forward and is contacted the first contact site so as to open The internal circuit connection of pass, whole switch are just powered.

Description of the drawings

Sectional views of the Fig. 1 for this utility model elastic safety switch module embodiment (do not stress state)；

Sectional views (press splenium stress) of the Fig. 2 for this utility model elastic safety switch module embodiment；

Fig. 3 is the sectional view in silica gel leather cup and hard set portion in the present embodiment；

Fig. 4 is the sectional view of movable contact in the present embodiment；

Fig. 5 is the half-sectional structural representation of silica gel leather cup in the present embodiment；

Fig. 6 be the present embodiment in keep cover structural representation；

Fig. 7 is the connection diagram (normal condition) of the first contact site and movable contact in the present embodiment；

Fig. 8 is the connection diagram (overload) of the first contact site and movable contact in the present embodiment.

Reference：10th, the first binding post；100th, the first contact site；1000th, end；1001st, arc contact portion；1002、 Kink；11st, the second binding post；110th, second connecting portion；12nd, guiding conical plate；2nd, keep set；20th, keep base plate；21st, cover Cylinder；30th, silica gel leather cup；30a, chassis portion；30b, quarrel portion；300th, cease oral area；301st, fold ring；302nd, accommodating chamber；31st, hard Set portion；310th, bar portion lock chamber；311st, end lock chamber；312nd, it is oriented to caulking groove；313rd, rigid outer layer；32nd, movable contact；320、 Contact bar portion；321st, contact end；322nd, guide ring；33rd, press splenium.

Specific embodiment

Below in conjunction with the accompanying drawings this utility model is described further.

Elastic safety switch module as shown in Fig. 1 to 8, including housing and shift knob.

As shown in figure 1, shift knob includes movable contact 32, presses splenium 33 and the silica gel leather cup of movable telescopic reset 30, splenium 33 is pressed outside housing, silica gel leather cup 30 presses relative 32 end of movable contact of splenium 33 positioned at same.

The first binding post 10 and the second binding post 11 for being parallelly mounted to housing side is provided with housing, housing includes First cavity volume and the second cavity volume, 10 end of the first binding post are provided with the first contact site 100, and the first contact site 100 is located at first In cavity volume；Second binding post, 11 end is provided with second connecting portion 110, and second connecting portion 110 is electrically connected with movable contact 32, the Two connecting portions 110, movable contact 32 and silica gel leather cup 30 are respectively positioned in the second cavity volume.

As shown in figure 3, silica gel leather cup 30 includes chassis portion 30a and quarrel portion 30b, 30a is disc-shaped in chassis portion, quarrel portion In a tubular form, quarrel portion 30b is vertically connected at chassis portion 30a to 30b.

The periphery of chassis portion 30a is mutually fixed with inner walls by fold ring 301, fold ring 301 positioned at chassis portion 30a and Between inner walls, in a ring wavy of fold ring 301, fold ring 301 are integrally formed setting, fold ring with chassis portion 30a 301 can be compressed to a greater extent and be stretched, it is ensured that chassis portion 30a can occur to deform to a greater extent.

The accommodating chamber 302 for accommodating movable contact 32, the connection of chassis portion 30a and quarrel portion 30b are provided with the middle part of quarrel portion 30b Place is provided with breath oral area 300, ceases the wall thickness of the wall thickness more than quarrel portion 30b of oral area 300.

Holding set 2 and guiding conical plate 12 are additionally provided with housing.Keep set 2 to be fixed on enclosure interior, keep set 2 to be annular sleeve Part, keeps 2 longitudinal sections of set L-shaped, keeps set 2 to include sleeve 21 and keep base plate 20, quarrel portion 30b to be sheathed on sleeve 21 It is interior, cease the inwall radius of the thickness more than sleeve 21 of oral area 300；When shift knob is not restored to the original state by external force, oral area 300 is ceased Extrude and close accommodating chamber 302 in sleeve 21 and holding 20 intersection of base plate.Increase breath oral area 300 when silica gel leather cup 30 recovers Sealing to accommodating chamber 302.

Guiding conical plate 12 can be guided to the moving direction of chassis portion 30a, and guiding conical plate 12 is tapered, guiding conical plate 12 are located between the first cavity volume and the second cavity volume, and the through hole passed through for movable contact 32 is provided with the middle part of guiding conical plate 12, and through hole connects Logical first cavity volume and the second cavity volume.

As shown in Fig. 2 splenium 33 is pressed when being pushed by right side to the left, press splenium 33 and drive quarrel portion 30b to move to case inside It is dynamic, quarrel portion 30b extruding breath oral area 300 along two side shifting up and down from guiding conical plate 12 to the second cavity volume, chassis portion 30a is extruded And driving fold ring 301 to deform, breath oral area 300 is also moved to periphery, and the accommodating chamber 302 at middle part is opened, and movable contact 32 Contact bar portion 320 contacted with the first contact site 100 by the through hole of guiding conical plate 12, realize that second connecting portion 110, activity are tactile 32 and first contact site 100 electric connection, switch module is in connected state.

As shown in figure 1, when silica gel 30 no longer stress of leather cup, under the reset response of the Elastic stress of silica gel, chassis Portion 30a is replied from the two ends of the second cavity volume to middle part, and movable contact 32 follows quarrel portion 30b from enclosure interior to outside movement, Breath oral area 300 is entered in the sleeve 21 for keeping set 2 on the outside of also having, as the barrel internal diameter of sleeve 21 is less than the thickness for ceasing oral area 300 Degree, ceases oral area 300 in sleeve 21 and keeps the junction of base plate 20 mutually to extrude, accommodating chamber 302 is closed, accommodating chamber is disconnected 302 and first cavity volume connection, keep covering 2 sealings that increased breath oral area 300 by rigid, while safety switch assembly Home loop is changed into open circuit, and the connection of the first binding post and the second binding post disconnects.

Quarrel portion 30b is additionally provided with hard set portion 31 towards the one end in outside, and the sidewall surfaces in hard set portion 31 are provided with rigidity Outer layer 313, is and 30 material identical silica gel of silica gel leather cup that hard set portion 31 is connected with quarrel portion 30b inside hard set portion 31 And synchronizing moving, movable contact 32 is fixed on the middle part in hard set portion 31.Increased by increase rigid outer layer 313 and press splenium 33 Anti-bending strength, even if press Impact direction during pressure producing crooked, also hard set portion 31 also will not will not be bent and be caused firmly Matter set portion 31 cannot stretch.

Movable contact 32 is in T-shape, including contact end 321 and conductive contact bar portion 320, opens up in hard set portion 31 Have bar portion lock chamber 310 and an end lock chamber 311, end lock chamber 311 be located at hard set portion 31 dorsad silica gel leather cup 30 one Side, contact bar portion 320 are fixed in bar portion lock chamber 310, and contact end 321 is fixed in end lock chamber 311.

Bar portion lock chamber 310 and end lock chamber 311 effectively improve fixation of the movable contact 32 in hard set portion 31, prevent Stop skew and dislocation abjection phenomenon which is produced in the deformation of rubber cup 30 and moving process.

One side surface of the dorsad contact bar portion 320 of contact end 321 is provided with is easy to contact end 321 to pass through bar portion lock chamber 310 reach end lock chambers 311 and prevent the guide ring 322 of the displacement of contact end 321, and the thickness of guide ring 322 is by contact 321 edge of end is incremented by successively to inner side, is provided with and be adapted with guide ring 322 guiding caulking groove 312 in end lock chamber 311.Lead It is the installation that can effectively improve movable contact 32 to the effect of ring 322, and increases its fixed effect.

Splenium 33 is pressed in hard set portion 31, and hard set portion 31 is provided with when splenium is pressed by radial force and can bring it about axle To mobile inclined-plane, inclined-plane is again provided with rigid outer layer 313, by setting up inclined-plane, the force direction that controlling switch component is opened and closed It is not limited to parallel to the telescopic direction for pressing splenium 33, force direction can exert a force (i.e. perpendicular to the moving direction for pressing splenium 33 Can be horizontal direction force in Fig. 1, it is also possible to the force on vertical direction is realized by inclined-plane).

First contact site 100 of the first binding post 10 adopts memory alloy material, the first contact site 100 to include end 1000th, the arc contact portion 1001 and heating contacted for same movable contact makes arc contact portion 1001 detached with movable contact 32 curved Folding part 1002；End 1000 is located at the two ends of the first contact site 100 and is fixed with enclosure interior, and kink 1002 is touched positioned at arc Between portion 1001 and end 1000.

The memory alloy material adopted in the present embodiment has a feature, i.e., when 100 temperature of the first contact site rises, curved The bending angle of folding part 1002 can become big, and end 1000 is the fixation for 100 two ends of the first contact site.

As shown in Figure 7 and Figure 8, when the power for switching vigour part is excessive or transships, the electricity passed through in the first contact site 100 Stream is larger, and the heat of generation becomes many, the rising of 100 bulk temperature of the first contact site, due to 1000 two ends of end be it is fixed, therefore Kink 1002 shrinks and close to two ends, and arc contact portion 1001 is overall to be offset to the left side, produces spacing simultaneously with movable contact 32 Disconnect with movable contact 32, now switch is off, it is to avoid electrical appliance transships, it is ensured that safety.

The above is preferred implementation of the present utility model, for the person of ordinary skill of the art without departing from On the premise of this utility model principle, some modifications and improvement can also be made, these also should be regarded as protection of the present utility model Scope.

Claims (10)

1. a kind of elastic safety switch module, it is characterised in that：Including housing and shift knob；

- the shift knob includes movable contact (32), presses splenium (33) and the silica gel leather cup (30) of movable telescopic reset, presses Outside housing, the silica gel leather cup (30) presses relative movable contact (32) end of splenium (33) positioned at same to splenium (33)；

- the housing is provided with the first cavity volume and the second cavity volume, and the first terminals for being parallelly mounted to housing side are provided with housing Sub (10) and the second binding post (11), the first binding post (10) end is provided with the first contact site (100), the first contact site (100) in the first cavity volume；Second binding post (11) end is provided with and electrically connects second connecting portion with movable contact (32) (110), in the second cavity volume, movable contact (32) and silica gel leather cup (30) are respectively positioned on the second cavity volume to second connecting portion (110) It is interior；

The quarrel portion (30b) in chassis portion (30a) and tubulose of-the silica gel leather cup (30) including plate-like, outside the chassis portion (30a) Week is mutually fixed with inner walls, and the accommodating chamber (302) for accommodating movable contact (32) is provided with the middle part of the quarrel portion (30b), described The junction of chassis portion (30a) and quarrel portion (30b) is provided with the breath oral area that accommodating chamber (302) is opened and closed with silica gel leather cup (30) activity (300)；

When push switch button makes movable contact (32) inwardly move, splenium (33) inwardly extruding silica gel leather cup (30), quarrel are pressed Portion (30b) moves inward and extrudes chassis portion (30a) and deforms laterally, and breath oral area (300) is with chassis portion (30a) outside sidesway It is dynamic, connect and make movable contact (32) to pass through between accommodating chamber (302) and the first cavity volume, movable contact (32) front end is pressed on the One contact site (100), second connecting portion (110), movable contact (32) and the first contact site (100) are electrically connected successively, at switch In connected state；

When shift knob is not subject to external force, under chassis portion (30a) the elastic recoil effect of silica gel leather cup (30), quarrel portion (30b) movable contact (32) is driven together to be displaced outwardly, movable contact (32) is separated with the first contact site (100)；And cease mouth Portion (300) is recovered to original position by outside, and breath oral area (300) extrudes and close the passage between accommodating chamber (302) and the first cavity volume, Switch is off.

2. elastic safety switch module according to claim 1, it is characterised in that：It is additionally provided with for chassis in the housing The guiding conical plate (12) of portion (30a) movement and deformation laterally, the guiding conical plate (12) are tapered, and guiding conical plate (12) is positioned at Between one cavity volume and the second cavity volume, the through hole passed through for movable contact (32) in the middle part of guiding conical plate (12), is provided with, the through hole connects Logical first cavity volume and the second cavity volume.

3. elastic safety switch module according to claim 1 and 2, it is characterised in that：Be additionally provided with the housing for Increase the holding set (2) of breath oral area (300) seal, described to keep set (2) to be fixed on enclosure interior, the holding set (2) is Annular external member, keeps set (2) longitudinal section L-shaped, keeps set (2) including sleeve (21) and keep base plate (20), the quarrel Portion (30b) is sheathed in sleeve (21)；When shift knob is not restored to the original state by external force, the breath oral area (300) is in sleeve (21) extrude and close accommodating chamber (302) with holding base plate (20) intersection.

4. elastic safety switch module according to claim 1, it is characterised in that：In the chassis portion (30a) and housing The junction of wall is provided with the fold ring (301) that more large deformation amount occurs for chassis portion (30a), and the fold ring (301) is in a ring It is wavy, the fold ring (301) and chassis portion (30a) are integrally formed setting.

5. elastic safety switch module according to claim 1, it is characterised in that：The quarrel portion (30b) is towards outside One end be additionally provided with hard set portion (31), the sidewall surfaces of the hard set portion (31) are provided with rigid outer layer (313), hard set portion (31) it is connected with quarrel portion (30b) and synchronizing moving, the movable contact (32) is fixed on the middle part in hard set portion (31).

6. elastic safety switch module according to claim 5, it is characterised in that：The movable contact (32) is including contact End (321) and the contact bar portion (320) of conduction, offer bar portion lock chamber (310) and end in the hard set portion (31) Lock chamber (311), the end lock chamber (311) is positioned at the side of hard set portion (31) dorsad silica gel leather cup (30), contact stem Portion (320) is fixed in bar portion lock chamber (310), and contact end (321) is fixed in end lock chamber (311).

7. elastic safety switch module according to claim 6, it is characterised in that：The contact end (321) is dorsad touched One side surface in head rod portion (320) is provided with is easy to contact end (321) to reach end lock chamber through bar portion lock chamber (310) (311) guide ring (322), the thickness of the guide ring (322) are incremented by successively to inner side by contact end (321) edge, institute State to be provided with end lock chamber (311) and be adapted with guide ring (322) guiding caulking groove (312).

8. elastic safety switch module according to claim 5, it is characterised in that：The splenium (33) of pressing is positioned at hard set In portion (31), the hard set portion (31) is provided with the inclined-plane that axial movement can be brought it about when pressing splenium by radial force, described Inclined-plane is again provided with rigid outer layer (313).

9. elastic safety switch module according to claim 1, it is characterised in that：The chassis portion (30a), quarrel portion (30b) setting is integrally formed with breath oral area (300).

10. elastic safety switch module according to claim 1, it is characterised in that：First binding post (10) First contact site (100) adopts memory alloy material, and the first contact site (100) is including end (1000), for same movable contact The arc contact portion (1001) of contact and heating make arc contact portion (1001) kink (1002) detached with movable contact (32)；Institute End (1000) is stated positioned at the two ends of the first contact site (100) and is fixed with enclosure interior, the kink (1002) is positioned at arc Between shape contact portion (1001) and end (1000).