CN101620943B

CN101620943B - Switch button structure

Info

Publication number: CN101620943B
Application number: CN 200910302570
Authority: CN
Inventors: 吴陈瑞
Original assignee: FUYANG RUITAI ELECTROMECHANICAL Co Ltd
Current assignee: FUYANG RUITAI ELECTROMECHANICAL Co Ltd
Priority date: 2009-05-25
Filing date: 2009-05-25
Publication date: 2012-12-05
Anticipated expiration: 2029-05-25
Also published as: CN101620943A

Abstract

The invention relates to the technical field of electrical appliance buttons, in particular to a switch button structure for mutually matching and limiting in ways of a raising hook and a groove wedge. The switch button structure is characterized in that a key and a base are mutually matched and limited in ways of a raising hook and a groove wedge; the raising hook and the groove wedge are arranged at one end of the matching position between the key and the base; and an elastic raising plate is arranged between the key and the base. When the key is operated, action points of the raising hook and the groove wedge are used as movable fulcrums and positioned and reset by the elastic raising plate so as to finish the function of communication or power failure of a switch button; and the switch button structure has less wearability and high sensitivity.

Description

Switch button structure

Technical field

The present invention relates to the electrical appliance button technical field, relate in particular to a kind of through stick up hook and groove wedge formula cooperatively interact with spacing switch button structure.

Background technology

General push-button switch adopts pivot pin to make the hinge type fulcrum mostly, in adorn a location seesaw, when hand is pressed an end of switch key, energising or outage, the spacing button of location seesaw, when the other end of button received for the second time pressure, switch key resetted.And operate equally with regular tap, have the current overload protection protection unit switch because, security performance is good; Extremely people welcome, and the sensitivity of this switch is very important, if adopt mentioned hinge formula fulcrum technique; Often because the thrust that the thermo-responsive sheet metal of temperature distortion produces is not enough, or the displacement after the distortion of thermo-responsive sheet metal overload is not enough and lost efficacy, and so perhaps requires the lever construction of button and thermo-responsive sheet metal to have very high precision; Cause processing difficulties, cost is too high.

Common with the push-button switch emphasis of design on the contact point of conducting strip; Shift knob with current overload protection protection unit requires much more; Existing safety switch press-button structure people's design focal point all is placed on this technology point of thermo-responsive sheet metal, and does not note on the structure of button, seesaw.

Like the patent No. is a kind of current overload protection protection unit of ZL200720120332 utility model; Comprise that switch housing, switch control assembly, thermo-responsive sheet metal, switch switch the seesaw guide card, seesaw supports guide card; Its seesaw support guide card of overload protective device is fixed and is connected thermo-responsive sheet metal, and seesaw guide card one end is provided with the push rod that after the distortion of thermo-responsive sheet metal overload, it is resetted.Like the patent No. is a kind of overload protection arrangement of safety switch for the ZL200320118288.X utility model; The switch bar that lies in safety switch presses on the prominent piece of the movable contact that is located at bimetal leaf when being provided with conducting; The pedestal of between two pins of safety switch, planting again; Pedestal is provided with and is stretched on body interior and when conducting state, supports the teat that reaches bimetal leaf; The temperature of bimetal leaf is raise when rebounding, and teat promptly forms a reaction force rebounds bimetal leaf fast, improves bimetal leaf bounce-back power and sensitivity by this.

And for example the patent No. is ZL200410038723.7 push-button switch; Have housing, being contained in the housing can be at the button of axial action between position and the compression position usually; This button by spring loaded in common position and drive the cam member that elasticity is installed; At least one is installed in the micro switch in the housing; Be installed in the switch that is used for axial action in the housing and carry out rocking bar, switch braking rocking bar have the brake arm that is used to carry out said micro switch and by the transmission arm of said cam member engagement with when button during in position usually to keep the execution rocking bar in common position.And for example the patent No. is a kind of push-button switch with annulus of ZL98115904.4 invention; Spring precompressed button is installed in this annulus, and button can be pressed into a scheduled operation stroke like this, and button is concordant with the end face of annulus; The height of annulus reduces gradually, and its reduction amount is about the operational stroke amount.

Also just like the patent No. a kind of available push-button switch of clicking contact that has been 200510003520.9 disclosure of the Invention for the ZL application number, button rotates around the point that the surface, back connects curved wall and pedestal, when pressing the button, on curved wall, can not produce pulling force; Need user's applied pressure less, and can feel and the clear and quite natural contact of clicking comprise a pedestal; The one crooked or wall of buckling, a button, it is connected with curved wall; One plate, pedestal are placed on this plate, a lid; This lid is provided with through hole, and button is outstanding through this through hole, and the front surface with respect to button keeps a gap simultaneously; One rib, this rib form on the bottom surface of button, the projection of back near surface, a removable contact; This removable contact forms the projection on the button bottom surface, than rib more near front surface, thereby in the face of fixed touch plate onboard is set.

More than these several kinds of switches, accomplish that the set structure of its function respectively has characteristics and inequality, or the elasticity seesaw is two, or electric current input and output guide card is provided with three connector lugs, the shift knob assembly all through a pitman shaft as fulcrum work.

Summary of the invention

The objective of the invention is in order to solve the common push-button switch of using; Especially the problem that the switch button structure that has the current overload protection protection unit is single, sensitivity is low, cost of manufacture is high; Provide a kind of rational in infrastructure, hook through button one end and wedge formula cooperatively interact with spacing, make simple; Abrasiveness is little, in the shift knob of current overload protection protection unit, has highly sensitive switch button structure.

Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals: this switch button structure; It is characterized in that button and pedestal cooperatively interact with spacing through sticking up hook and groove wedge formula, stick up hook and groove and carve an end that is arranged on button and pedestal cooperation place, between button and pedestal, be provided with the elasticity seesaw; When button is worked; To carve application point be moving fulcrum to stick up hook and groove, positioned and resetted by the elasticity seesaw, accomplishes the energising or the outage function of shift knob.

As preferably; Describedly stick up hook and groove is carved an end that is arranged on button and pedestal; The other end of button has the positioner of elasticity seesaw, and after button and base combination, the pedestal of its elasticity seesaw positioner opposite side is provided with the place, location of elasticity seesaw corresponding with it.Stick up hook and groove and carve or be designed to respectively a place, promptly stick up hook and become a monomer, groove is carved into a monomer, is positioned at the end middle part of button and pedestal cooperation place, die sinking handling ease like this; Or establish two places; Promptly stick up hook and groove and carve the both sides of an end that is separately positioned on button and pedestal cooperation place; Stick up hook and groove and carve also and can one of them be arranged to some places, another is made as a place or some places, as long as guarantee that button can steady operation under this structure.Button and pedestal are through the common rubber-like that forms of the power of elasticity seesaw, and pole location has the moving seesaw-type reciprocalfunction of stability.

As preferably; Described switch button structure comprises pedestal, button, electric appliance component, switch housing, buckle bar, and an end that it is characterized in that the bottom of described button is provided with and sticks up hook; The other end is provided with the seesaw locating piece; Be provided with the said corresponding end of hook that sticks up that groove is carved, the seesaw holddown groove in the pedestal, stick up hook and groove and carve identically, be provided with the elasticity seesaw between seesaw locating piece and the seesaw holddown groove.This switch button structure is owing to be to stick up hook and groove is carved monolateral the establishing of button; Its moving fulcrum has the bigger arm of force with the push rod that is located at the thermo-responsive sheet metal of the keypad other end; After thermo-responsive sheet metal is heated, push rod is produced the micro thrust in the design data, just make the distortion of elasticity seesaw, button is moved flexibly; So the present invention both can be used for common individual palpation key function occasion, was more suitable for having the shift knob occasion of current overload protection protection unit.

As preferably, the described hook end segment tip-angled shape triangular in shape that sticks up hook, the trench bottom that groove is carved is associated wedge angle space, sticks up hook and groove and carves or inlay or during snap, two wedge angles compress the formation pin joint each other; Stick up the hook end segment triangle wedge angle of hook and notch that groove is carved and have enough spaces, when guaranteeing that button upwarps, shift knob is switched on fully or is broken off fully.Stick up the triangle tip-angled shape of the hook end segment of hook, its pinnacle is provided with arc chord angle, and arc chord angle contact point and face frictional force are little, and wearing and tearing are relatively also few, and according to its operation principle, triangle also can be semicircular arc, door leaf shape, multiple version such as linear.

As preferably, described elasticity seesaw is an arcuate structure, and an end of elasticity seesaw is positioned in the seesaw holddown groove, and the other end is supported in the bayonet socket that the seesaw locating piece is provided with, and the bayonet socket two ends on the seesaw locating piece are provided with left and right sides positive stop.During the assembling of elasticity seesaw, the concave arc opening is towards the button direction, and the elasticity seesaw is when work, and its shape is a change procedure, so the bayonet socket of seesaw holddown groove and seesaw locating piece must have certain depth.

As preferably; Described button comprises button cover plate, key base, sticks up bottom one end that hook is arranged on key base, and the seesaw locating piece is arranged on the other end of key base bottom; Same end at the seesaw locating piece is provided with the extension spring hole, and the extension spring hole cooperates with extension spring in the electric appliance component; Key base is provided with a key box towards the cover plate direction, and key box is provided with wire guide.Can install electric elements such as indicator light in the key box.

As preferably, described pedestal comprises panel, and the centre position of panel is provided with through hole, and the size of its through hole cooperates with the overall dimension of button; Panel one side of pedestal is provided with two sheaf spaces, and one deck adjacent with panel is the seesaw space, and the seesaw holddown groove is located at an end that has groove to carve in the seesaw space, is the conducting strip installing zone away from one deck of panel, and the base body of conducting strip installing zone is provided with the conduction inserted slot.Button is assemblied in the intermediate throughholes of panel, and key base does not exceed the panel of pedestal, and thermo-responsive sheet metal is contained in the conducting strip installing zone, and the dividing plate between two sheaf spaces plays the movement position qualification effect of thermo-responsive sheet metal.

As preferably, described base body is provided with buckle slot, can assemble the buckle bar in the buckle slot.In push-button switch of the present invention, be provided with the buckle bar that matches with switch use occasion hole slot, as long as be pressed into this shift knob integral body in the hole slot, the buckle bar just is completely fixed switch integral body through elastic reaction.

As preferably, an end of the extension spring in the described electric appliance component and an end of the metallic conduction sheet in the conducting strip installing zone are fixed, and the other end of metallic conduction sheet is communicated with leg.Extension spring is different two ends in position on the button with sticking up the position that hook and groove carve on button or pedestal, and in the switch with current overload protection protection unit, the effect of stablizing button is played in extension spring simultaneously.

Therefore, the present invention is a kind of structural design compact and reasonable, makes simply, and assembling is easy, and the moving fulcrum abrasiveness is little, in the shift knob of current overload protection protection unit, has highly sensitive switch button structure.

Description of drawings

Fig. 1 is a kind of contour structures sketch map of the present invention.

Fig. 2 is a kind of structural representation of the present invention.

Fig. 3 is a kind of structural representation of pedestal of the present invention.

Fig. 4 is a kind of key base structural representation of the present invention.

Fig. 5 is a kind of electric appliance component of the present invention and internal structure sketch map.

Among the figure: 1. pedestal, 11. panels, 12. grooves are carved, 13. buckle slots, 14. conduction inserted slots, 15. seesaw spaces; 16. the seesaw holddown groove, 17. conducting strip installing zones, 2. button cover plate, 3. key base, 31. key box; 32. stick up hook, 33. wire guides, 34. seesaw locating pieces, 35. extension spring hole, 4. electric appliance components; 41. extension spring, 42. leg, 5. elasticity seesaw, 6. switch housing, 7. buckle bar.

Embodiment

Pass through embodiment below, and combine accompanying drawing, do further bright specifically technical scheme of the present invention.

Referring to Fig. 1, Fig. 2, present embodiment comprises a pedestal 1, a button, electric appliance component 4, switch housing 6, four buckle bars 7.

Button is made up of button cover plate 2 and key base 3, sticks up the end both sides that hook 32 is located at the bottom of key base 3, totally two; Seesaw locating piece 34 is arranged on the other end of key base 3 bottoms; Totally one, a key box 31 is established in the position of key base 3 dress cover plates 2, and establishing two on the base plate of key box 31 has wire guide 33; LED light can be adorned in the inside; Two strands of electrodes of indicator light pass from wire guide 33, establish two extension spring holes 35 in the same end both sides of seesaw locating piece 34, and the diameter of the extension spring 41 in the two electric appliance components 4 in the aperture in extension spring hole 35 is big; Key base adopts plastic material, and the disposable injection-compression molding in each position on it also is integral.

The hook end segment tip-angled shape triangular in shape of hook 32 is stuck up in two of the bottoms of key base 3; It is associated wedge angle space that groove is carved 12 trench bottom; Like Fig. 3, shown in Figure 4, arc chord angle is processed at the top of its wedge angle, and it is bigger than the hook end segment triangle wedge angle that sticks up hook 32 that groove is carved 12 notch; When its spacing that goes out greatly will guarantee that button upwarps, shift knob put in place fully.

Referring to Fig. 3, pedestal 1 comprises a panel 11, and the centre position of panel 11 is provided with through hole; Button just is contained in this through hole, and pedestal 1 inner space is divided into two-layer, with panel 11 adjacent one decks are seesaw spaces 15; Elasticity seesaw 5 is just installed wherein; Groove carve 12 be arranged on this space an end, seesaw holddown groove 16 is located at has groove to carve an end of 12 in the seesaw space 15, can be arranged on groove during making and carve 12 the back side.One deck away from panel 11 is a conducting strip installing zone 17, and pedestal 1 body of conducting strip installing zone 17 is provided with and conducts electricity inserted slot 14 everywhere, can assemble four leg 42.

The outside, two ends on pedestal 1 body is respectively equipped with two buckle slots 13, can assemble buckle bar 7 in the buckle slot 13, when generally using, adorns 4 buckle bars 7 and gets final product.

After each parts assembling, load onto switch housing 6.

During work, push button, the hook end segment triangle wedge angle that sticks up hook 32 withstands the bottom that groove is carved the wedge angle space of 12 trench bottom, energized, and LED light lights, under the elastic force effect of elasticity seesaw 5, the stable contact of conductive metal sheet.

If general single-acting switch, when pressing & hold towards the another side action, power supply breaks off, and is same under the elastic force effect of elasticity seesaw 5, and conductive metal sheet is the back position stability separately.

As shown in Figure 5, in the switch with current overload protection protection unit, operate as normal pushes button; When the excessive generation thermal deformation of thermo-responsive sheet metal electric current, cause that drive link moves upward, give power that makes progress of moving fulcrum of elasticity seesaw 5; Force elasticity seesaw 5 disequilibriums and pop up; To carve 12 application point be support motion to stick up hook 32 and groove between button and the pedestal 1, and power supply is cut off like this, reaches the overload protection purpose.

The foregoing description is to explanation of the present invention, is not to qualification of the present invention, any structure after the simple transformation of the present invention is all belonged to protection scope of the present invention.

Claims

1. switch button structure; It is characterized in that button and pedestal (1) cooperatively interact with spacing through sticking up hook and groove wedge formula; And between button and pedestal (1), be provided with elasticity seesaw (5), when button was worked, to carve application point be moving fulcrum to stick up hook and groove; Position and reset by elasticity seesaw (5); Accomplish the energising or the outage function of shift knob, describedly stick up hook (32) and groove is carved the end that (12) are arranged on button and pedestal (1), the other end of button has the positioner of elasticity seesaw (5); After button and pedestal (1) combination, the pedestal (1) of its elasticity seesaw (5) positioner opposite side is provided with the place, location of elasticity seesaw corresponding with it (5).

2. switch button structure; Comprise pedestal (1), button, electric appliance component (4), switch housing (6), buckle bar (7); An end that it is characterized in that the bottom of described button is provided with and sticks up hook (32); The other end is provided with seesaw locating piece (34); Be provided with groove and carve (12), seesaw holddown groove (16) with the said corresponding end of hook (32) that sticks up in the pedestal (1), stick up hook (32) and groove carve (12) identical, be provided with elasticity seesaw (5) between seesaw locating piece (34) and the seesaw holddown groove (16).

3. switch button structure according to claim 2; It is characterized in that the described hook end segment tip-angled shape triangular in shape that sticks up hook (32); The trench bottom that groove is carved (12) is associated wedge angle space; Sticking up hook (32) and groove carves (12) or inlays or during snap, two wedge angles compress the formation pin joint each other; The notch that hook end segment triangle wedge angle and the groove that sticks up hook (32) carved (12) has enough spaces, and when guaranteeing that button upwarps, shift knob is switched on fully or broken off fully.

4. switch button structure according to claim 2; It is characterized in that described elasticity seesaw (5) is an arcuate structure; One end of elasticity seesaw (5) is positioned in the seesaw holddown groove (16); The other end is supported in the bayonet socket that seesaw locating piece (34) is provided with, and the bayonet socket two ends on the seesaw locating piece (34) are provided with left and right sides positive stop.

5. according to claim 2 or 4 described switch button structures; It is characterized in that described button comprises button cover plate (2), key base (3); Stick up bottom one end that hook (32) is arranged on key base (3); Seesaw locating piece (34) is arranged on the other end of key base (3) bottom, is provided with extension spring hole (35) at the same end of seesaw locating piece (34), and extension spring hole (35) cooperate with extension spring (41) in the electric appliance component (4); Key base (3) is provided with a key box (31) towards cover plate (2) direction, and key box (31) is provided with wire guide (33).

6. according to claim 2 or 3 or 4 described switch button structures, it is characterized in that described pedestal (1) comprises panel (11), the centre position of panel (11) is provided with through hole, and the size of its through hole cooperates with the overall dimension of button; Panel (11) one sides of pedestal (1) are provided with two sheaf spaces; One deck adjacent with panel (11) is seesaw space (15); Seesaw holddown groove (16) is located at has groove to carve an end of (12) in the seesaw space (15); One deck away from panel (11) is conducting strip installing zone (17), and pedestal (1) body of conducting strip installing zone (17) is provided with conduction inserted slot (14).

7. switch button structure according to claim 6 is characterized in that described pedestal (1) body is provided with buckle slot (13), can assemble buckle bar (7) in the buckle slot (13).

8. switch button structure according to claim 5; It is characterized in that an end of the extension spring (41) in the described electric appliance component (4) and an end of the metallic conduction sheet in the conducting strip installing zone (17) fix, the other end of metallic conduction sheet is communicated with leg (42).