CN106710979A

CN106710979A - Switch module internally provided with surge absorbing and circuit breaking structure

Info

Publication number: CN106710979A
Application number: CN201510792663.6A
Authority: CN
Inventors: 王怡翔; 王怡颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-18
Filing date: 2015-11-18
Publication date: 2017-05-24

Abstract

The invention discloses a switch module internally provided with a surge absorbing and circuit breaking structure. With an over current protection switch as a main body, a high temperature-resisting shell is used for delicately building a surge absorbing and circuit breaking structure inside the space. When a first contact point of the switch module is in contact connection with a second contact point of the same and the temperature rise, caused by surge excess or high-voltage lightning strokes, of a voltage dependent resistor is higher than a melting value of a temperature-sensitive binding element, the temperature-sensitive binding element is forced to be softened, an elastic actuated piece compressed by the temperature-sensitive binding element in a solid way is loosened and popped up, a push portion is pushed to displace, the first contact point on a bimetallic sheet is disengaged from the second contact point to form a break circuit, and power supply to the voltage dependent resistor and electric appliances behind the resistor is stopped to achieve power utilization safety. A traditional structure in which a tightening band is used to tighten a compression spring is eliminated, a modularized design in which the temperature-sensitive binding element compresses the elastic actuated piece in the solid way directly is used, and further, manufacturing is convenient, the product accuracy is improved, and the reliability is improved.

Description

The switch module of built-in sudden-wave absorbing and breaking structure

Technical field

The present invention is the switch module about a kind of built-in sudden-wave absorbing and breaking structure, and espespecially a kind of overcurrent protection is opened A sudden-wave absorbing and open circuit protection structure are built inside the Pass.

Background technology

Figure 1A and Figure 1B discloses a kind of existing overcurrent protection circuit 10, and it is generally included：One housing 11, its upper end sets There is a briquetting 12, and the first lug plate 12a, the second lug plate 12b and the 3rd lug plate 12c are arranged with bottom end, wherein should First lug plate 12a is provided with a dual alloy and belongs to the contact 131 of contact spring 13 and first, second lug plate 12b tops relative to First contact, is provided with second contact 121 that can be in contact with it；One moving part 14, its one end pivot mouthful is located at the bottom of briquetting 12 Portion, the other end interlocks the free end of the pairing metal contact spring 13, by the pressing of the briquetting 12, drives the pairing metal to connect The first contact 131 touched on reed 13 contacts second contact 121 formation conducting (ON), and when electric current overloads, this pair The varicose degree that alloy belongs to contact spring 13 deforms because temperature is raised, and first contact 131 is departed from second contact 121 form breaking (OFF), to constitute the form of an overcurrent protection circuit 10.This type patent is seen in China's bulletin the 540811st, in the patents such as 367091,320335,262168, No. 208384.

But look into, above-mentioned existing overcurrent protection circuit 10 is directed to the structure designed by current overload, but, for prominent The emergency situations such as ripple excess or high pressure thunderbolt, and cause voltage instantaneous to overload, the protection device of auto-cutout (OFF) is had no, because This easily causes damage to electrical appliance or uses the anxiety for above having safety.

Therefore in order that using safety, in many circuits, existing overcurrent protection circuit 10 is another when in use It is outer again and connect a surge absorber (piezo-resistance (Metal Oxide Varistor) and main power source concatenate a Thermal Cutoffs, Caused infringement when preventing overvoltage.

Fig. 2A is TW the I408717th (United States Patent (USP) US Patent No.8,643,462) patent, and it discloses a kind of anti- " the switch module " of surging, is applied to a power-supply system, and this switch module includes a power switch 105, an insulating part 106, The pyrocondensation belt 108 of surge absorber 107 and.Insulating part 106 is plugged on power switch 105；Surge absorber 107 is opened with power supply Close 105 adjacent；Pyrocondensation belt 108 is connected with surge absorber 107 and insulating part 106, and pyrocondensation belt 108 is used to by surge absorber 107 temperature rise produces contraction；When insulating part 106 is in original state, the switching of power switch is not influenceed, work as pyrocondensation belt When 108 heat shrinkage degree is enough to the startup for driving insulating part to block power switch 105, power switch 105 is in off state. But look into, the component such as the insulating part 106, surge absorber 107 and pyrocondensation belt 108 is located at the outside of power switch 105, not with electricity Source switch 105 is all a globality structure.

Therefore on take off existing construction of switch except there is the quality difficulty to ensure, High Temperature, reaction is slow outer, all have volume it is excessive, The too complicated limitation of component, it is therefore desirable to more spaces and the vertical operation of group, therefore the external side independently of switch external can only be adopted Formula is applied, it is impossible to is inside built in switch, therefore is still had improvement space.

It is the specification of the surge protecter for having newly-increased TYPE 4SPD- component classes according to the UL1449 third editions (2009.10). Simultaneously new edition and include low-voltage (below 1000V) arrester (Low Voltage surge Arresters) inspection.Title by (Transient Voltage Surge Suppressors) is changed to (Surge Protective Devices) obvious component one Body and the necessity for possessing lightning protection (surge Arresters) fast break.

Therefore to solve the above problems, inventor is " interior in apllied No. 201510029824.6 of on January 21st, 104 Build the switch module of sudden-wave absorbing and breaking structure " patent of invention is that a sudden-wave absorbing and breaking structure are built into tool jointly Prevent fires in the overcurrent protection circuit of heatproof material housing, it is ensured that tripping action during thunderbolt high pressure and surging excess all can be smooth Complete；Its structure is novel and with breakthrough progress, an ancient unit of weight office has been obtained rapidly and has checked and approved authorization (not yet disclosing) on record；The case Disclosed " built-in sudden-wave absorbing and breaking structure ", as shown in Figure 2 B, with a band 74, it possesses a first end 741 and Corresponding second end 742, is then sticked in the surface thereof of the piezo-resistance 71 with a temperature-sensitive binding element 72 in glue solid fraction, and should The end 742 of first end 741 and second of band 74 is sticked together and is fixed on the surface of piezo-resistance 71, makes the band 74 toroidal tight The beam compression spring 73, makes its contraction be compressed power and shorter length is presented, when surging high voltage is met, using heating Piezo-resistance 71 and the temperature-sensitive binding element 72 that can be melted moment so that band 74 unclamps, and utilize the upward elastic force of compression spring 73 Ejection rod member 75, departs from two contact terminals, quickly forms open circuit.But look into, with the toroidal tight beam of band 74 compression spring 73 Structure and processing procedure it is complex, be unfavorable for automated production, and the tightness of band 74 is difficult to control, cause product can By degree and precision reduction.Therefore still there is improvement space.

The content of the invention

Technical problem underlying to be solved by this invention is the drawbacks described above for overcoming prior art to exist, and provides one The switch module of kind built-in sudden-wave absorbing and breaking structure, its in addition to possessing the original function of current overload protecting switch, Sudden-wave absorbing and cut-out function are had concurrently simultaneously in same switch, and with up to Electrical Safety, and it excludes previously used tight beam of band The structure of compression spring, is directly designed with the modularity of temperature-sensitive binding element solidification one resilient actuating part of compacting, and then with manufacture It is convenient, and effect of product precision and reliability can be lifted.

The technical solution adopted for the present invention to solve the technical problems is：

A kind of switch module of built-in sudden-wave absorbing and breaking structure, including：One housing, its upper end is provided with a briquetting, and One first lug plate, the second lug plate and the 3rd lug plate are arranged with bottom, wherein a pairing is connected on first lug plate Sheet metal, is provided with one first contact terminal in the middle of the pairing sheet metal, the second lug plate epimere portion surface relative to this first touch Contact, is provided with second contact terminal that can be in contact with it；One moving part, its one end is hubbed on the briquetting bottom, and the other end is interlocked The pairing sheet metal, and then the first contact terminal on the pairing sheet metal is contacted second contact terminal formation conducting (ON), and When electric current overloads, the varicose degree of the pairing sheet metal deforms because temperature is raised, and takes off first contact terminal Breaking (OFF) is formed from second contact terminal, to constitute the form of a current overload protecting switch；It is characterized in that：

One sudden-wave absorbing and breaking structure, inside build in the housing, and it includes：At least one piezo-resistance, it possesses one One second surface of first surface and opposing face, and the second surface is located at the bottom of a substrate；An at least resilient actuating part, by The spring part that can be compressed is constituted, and the resilient actuating part has a base portion and a free end that can be bounced up, and the free end quilt It is compressed on the first surface of the piezo-resistance, the resilient actuating part is included in the base portion and is provided with an extension, and with the extension Portion is used as the first surface of the piezo-resistance and the electrical connector of second lug plate；An at least temperature-sensitive binding element, it is glutinous in solid fraction The first surface in the piezo-resistance is tied, while the free end of the resilient actuating part is cohered being compressed on the first of the piezo-resistance Surface, makes the resilient actuating part in tool bounce compressive state；One pushing part, its front end is corresponding to the pairing sheet metal, and bottom End is corresponding to the piezo-resistance and the free end of the resilient actuating part；Whereby, when first contact terminal connects with second contact terminal When touching conducting (ON), running into surging excess or high voltage makes piezo-resistance temperature moment rise above the molten of the temperature-sensitive binding element Change value, forces the temperature-sensitive binding element to soften, and releases the free end of the resilient actuating part and flicks, with the ejection pushing part displacement, Force the first contact terminal on the pairing sheet metal to depart from second contact terminal, make first lug plate and the second lug plate shape Into breaking (OFF).

According to feature is preceding taken off, in a second embodiment, the sudden-wave absorbing and breaking structure include the present invention：One first is pressure-sensitive Resistance, its second surface for possessing a first surface and opposing face, and the second surface system are located at the bottom of a substrate；At least One resilient actuating part, is to be made up of the spring part that can be compressed, the resilient actuating part have a base portion and one can bounce up from By holding, and the free end is compressed on the first surface of first piezo-resistance, and the resilient actuating part is additionally included in the base portion One first extension is provided with, and using first extension as the first surface of first piezo-resistance and second lug plate Electrical connector；An at least temperature-sensitive binding element, the first surface in first piezo-resistance is cohered in solid fraction, while the elasticity is caused The first surface for being compressed on first piezo-resistance is cohered in the free end of moving part, makes the resilient actuating part in tool bounce-back force compresses shape State；The first of one second piezo-resistance, its second surface for possessing a first surface and opposing face, and second piezo-resistance Surface rolling is on the resilient actuating part；One electrical connector, abuts in the second surface of second piezo-resistance, and its side is provided with One second extension, is used as the second surface and the electric connection of the 3rd lug plate of second piezo-resistance；One promotes Portion, its front end corresponds to the pairing sheet metal, and bottom corresponds to the second surface and electrical connector of second piezo-resistance Center.

According to feature is preceding taken off, in the third embodiment, the sudden-wave absorbing and breaking structure include the present invention：One first is pressure-sensitive Resistance, its second surface for possessing a first surface and opposing face, and the second surface are located at the bottom of a substrate；One first Resilient actuating part, is made up of the spring part that can be compressed, the first resilient actuating part have a base portion and one can bounce up from By holding, and the free end is compressed on the first surface of first piezo-resistance, and the first resilient actuating part is additionally included in this Base portion is provided with one first extension, and using first extension as the first surface of first piezo-resistance and second wiring The electrical connector of piece；One first temperature-sensitive binding element, the first surface in first piezo-resistance is cohered in solid fraction, at the same by this The first surface for being compressed on first piezo-resistance is cohered in the free end of one resilient actuating part, makes the first resilient actuating part in tool Bounce compressive state；One second piezo-resistance, its second surface for possessing a first surface and opposing face, and second pressure The first surface of quick resistance is compressed on the first resilient actuating part；One second resilient actuating part, by the spring part that can be compressed Constituted, the second resilient actuating part have a base portion and a free end that can be bounced up, and the free end be compressed on this second On the second surface of piezo-resistance, the second resilient actuating part is additionally included in the base portion and is provided with one second extension, as this The second surface of two piezo-resistances is used with the 3rd electrical downlink connection of lug plate；One second temperature-sensitive binding element, coheres in solid fraction In the second surface of second piezo-resistance, while the free end of the second resilient actuating part is cohered, and to be compressed on this second pressure-sensitive The second surface of resistance, makes the second resilient actuating part in tool bounce compressive state；One the 3rd piezo-resistance, it possesses one One surface and a second surface of opposing face, the 3rd piezo-resistance are compressed on the second resilient actuating part with the second surface On；One electrical connector, abuts in the first surface of the 3rd piezo-resistance, and its side is provided with one the 3rd extension, as this The first surface of three piezo-resistances is connected with the electrical property of substrate and is used；One pushing part, its front end corresponds to the pairing sheet metal, and Bottom corresponds to the first surface of the 3rd piezo-resistance and the center of the electrical connector.

By technical characteristic is above taken off, the present invention solves lacking for the external surge absorber of existing current overload protecting switch Lose, using general current overload protecting switch heatproof fireproof inner space, an ingenious built-in sudden-wave absorbing and breaking structure are met When surging excess or high pressure are struck by lightning, using the piezo-resistance and the temperature-sensitive binding element that can soften moment of heating so that resilient actuating The free end of part releases and flicks, the ejection rod member displacement, departs from first and second contact terminal, quickly forms open circuit.Therefore this hair It is bright in addition to possessing current overload protection protective function, further in same switch simultaneously have overvoltage protection and sudden-wave absorbing concurrently Function and have the open circuit design of surging excess, with Electrical Safety, and it excludes the previously used tight beam compression spring of band Structure, is directly designed with the modularity of temperature-sensitive binding element solidification one resilient actuating part of compacting, with easily manufactured, and can lift product Effect of product precision and reliability.

The beneficial effects of the invention are as follows it is opened in addition to possessing the original function of current overload protecting switch same Have sudden-wave absorbing and cut-out function concurrently simultaneously inside the Pass, with up to Electrical Safety, and it excludes previously used tight beam compression spring of band Structure, directly designed with the modularity of temperature-sensitive binding element solidification one resilient actuating part of compacting, and then with easily manufactured, and can Effect of lifting product precision and reliability.

Brief description of the drawings

The present invention is further described with reference to the accompanying drawings and examples.

Figure 1A is a kind of stereoscopic figure of existing current overload protecting switch.

Figure 1B is a kind of sectional view of existing current overload protecting switch.

Fig. 2A is existing TW I408717 (i.e. United States Patent (USP) US Patent No.8,643,462) surge prevention tripping system Schematic diagram.

Fig. 2 B are the primary structure schematic diagrames of the previous No. 201510029824.6 patent application case of inventor.

Fig. 3 is the structure sectional view of first embodiment of the invention, and its display switch is in OFF state.

Fig. 3 A are to show that temperature-sensitive binding element in Fig. 3 sticks the stereogram of resilient actuating part free end.

Fig. 4 is the structure sectional view of first embodiment of the invention, and its display switch is in ON states.

Fig. 5 is use state figure of the invention, and its display temperature-sensitive binding element softens and resilient actuating part unclamps, and rod member is produced Displacement forms contact open circuit (OFF).

Fig. 5 A are that temperature-sensitive binding element softens and the stereogram of resilient actuating part free end release in showing Fig. 5.

Fig. 6 is the primary clustering exploded perspective view of first embodiment of the invention.

Fig. 6 A are display pushing part and the integrally formed schematic diagram of resilient actuating part.

Fig. 7 is the structure sectional view of second embodiment of the invention, and its display sudden-wave absorbing and breaking structure include two pressures Quick resistance.

Fig. 7 A are that elastic displacement member is the schematic diagram of the shape of pre-determined bit in showing Fig. 7.

Fig. 8 is that temperature-sensitive binding element softens and the release of resilient actuating part in showing Fig. 7, and rod member produces displacement and forms contact and break The schematic diagram on road (OFF).

Fig. 8 A are to show schematic diagram that elastic displacement member in Fig. 8 is the shape for having reached positioning.

Fig. 9 is the primary clustering exploded perspective view of second embodiment of the invention.

Figure 10 is the structure sectional view of third embodiment of the invention, and its display sudden-wave absorbing and breaking structure include three pressures The schematic diagram of quick resistance.

Figure 10 A are 10A-10A cross-section cutaway views in display Figure 10.

Figure 11 is that temperature-sensitive binding element softens and the release of resilient actuating part in showing Figure 10, and rod member produces displacement and forms contact The schematic diagram of breaking (OFF).

Figure 11 A are 11A-11A cross-section cutaway views in Figure 11.

Figure 12 is the primary clustering exploded perspective view for showing third embodiment of the invention.

Label declaration in figure：

30 switch modules

31 housings

32 briquettings

33 moving parts

40 first lug plates

41 pairing sheet metals

411 free ends

42 contact springs

421 first contact terminals

50 second lug plates

51 epimere portions

511 second contact terminals

52 first draw-in grooves

60 the 3rd lug plates

61 second draw-in grooves

70 sudden-wave absorbings and breaking structure

71 piezo-resistances

The piezo-resistances of 71a first

The piezo-resistances of 71b second

The piezo-resistances of 71c the 3rd

711 first surfaces

712 second surfaces

72 temperature-sensitive binding elements

72a the first temperature-sensitive binding elements

72b the second temperature-sensitive binding elements

73 resilient actuating parts

73a the first resilient actuating parts

73b the second resilient actuating parts

73c electrical connectors

731 base portions

732 free ends

733 extensions

The extensions of 733a first

The extensions of 733b second

The extensions of 733c the 3rd

734 resilient bias structures

735 location holes

736 contact points

74 substrates

741 wires

742 electric-conductors

743 the 4th lug plates

75 pushing parts

751 bottoms

752 front ends

Specific embodiment

First, refer to shown in Fig. 3~Fig. 6, first embodiment of the invention includes：One housing 31, its upper end is provided with a pressure Block 32, and it is arranged with the second lug plate that first lug plate 40, being input into as positive pole is exported as positive pole in bottom end 50, and the 3rd lug plate 60 being input into as negative pole, wherein first lug plate 40 connection a pair of alloy piece 41, the pairing It is provided with a contact spring 42 and one first contact terminal 421 in the middle of sheet metal 41, the epimere portion 51 of second lug plate 50, relative to The position of first contact terminal 421, is provided with second contact terminal 511 that can be in contact with it；One moving part 33, its upper end is hubbed on The bottom of briquetting 32, bottom interlocks the free end 411 of the pairing sheet metal 41, as shown in figure 4, by the pressing of the briquetting 32, The upward of the pairing sheet metal 41 is driven, the downward bouncing distortion of contact spring 42 is forced, the first contact terminal 421 thereon is contacted Second contact terminal 511 forms conducting (ON), and when current overload, the varicose degree of the pairing sheet metal 41 is because temperature is raised Deform, the state shown in rebound Fig. 3, and make first contact terminal 421 depart from second contact terminal 511 form open circuit (OFF), to constitute a switch module 30 with current overload protecting switch as body.But, the above constitutes category prior art (Prior Art), appearance is not repeated.

Gearing mode due to the set location of the pairing sheet metal 41 and with the briquetting 32, often because of different switch modules 30 and have difference, for example：In the present embodiment, the center of the pairing sheet metal 41 has the contact spring 42 of a reverse escape, and First contact terminal 421 is located on the contact spring 42, but is not limited to this；For example on pairing sheet metal 41 it is not in contact with reed 42, and the first contact terminal 421 is located at the kenel of side, can also implement.Additionally, kenel as shown in Figure 1B, pairing sheet metal 41 When above, when sudden-wave absorbing and breaking structure are located at lower section, spinning upside down can also implement.

It is a feature of the present invention that：Switch module 30 under current overload protecting switch framework, a sudden-wave absorbing and disconnected Line structure 70, inside build in the housing 31, and corresponding to the contact spring 42 of the pairing sheet metal 41, the sudden-wave absorbing and open circuit Structure 70 includes：

At least one piezo-resistance (also known as surge absorber) 71, the piezo-resistance 71 possesses a first surface 711 and phase One second surface 712 of reverse side, and the second surface 712 is located at the bottom of a substrate 74；It is with first surface in the present embodiment 711 is positive pole-face, and second surface 712 is negative pole face；And first and second surface makes a reservation for through predetermined electrical connector with this respectively The second lug plate 50 and the 3rd lug plate 60 formed electrically conduct；The electrical connector can be conductor wire, conducting strip or press certainly The electric-conductor that the surface of quick resistance 71 is extended all can, its preferred embodiment is detailed later.

At least a resilient actuating part 73, is made up of, for example the spring part that can be compressed：Saucerspring, shaft-like spring, punching Springs of pressing formation etc. all may be used；The resilient actuating part 73 has a base portion 731 and a free end 732 that can be bounced up, and should Free end 732 can be compressed on 711 on the first surface of the piezo-resistance 71, as shown in Figure 3A.In the present embodiment, the surging is inhaled Receive and breaking structure 70 is included：One piezo-resistance 71 and a resilient actuating part 73 are constituted, and the of the piezo-resistance 71 Two surfaces 712 are located at the bottom of substrate 74, the substrate 74 can be with the integrally formed location-plate of housing 31, or one be embedded in Conducting strip in housing 31, or by using the 3rd lug plate 60 bend extension constitute all can, its object is to make this prominent Ripple absorption and breaking structure 70 have the rebound effect stationary plane of a benchmark；Furthermore, the resilient actuating part 73 is posted by the pressure-sensitive electricity The first surface 711 of resistance 71, the resilient actuating part 73 is additionally included in the base portion 731 and is provided with an extension 733, and the extension 733 kenels that can be set as a resilient bias structure 734, and using the extension 733 as the first surface 711 of the piezo-resistance 71 With the electric connection part of second lug plate 50, it can be as shown in fig. 6, the extension 733 be with the outer of the resilient bias structure 734 End impose in advance transverse elasticity displacement make its blocking be positioned at the one of second lug plate 50 estimate bounce up positioning first Draw-in groove 52, the resilient bias structure 734 can have the kenel of resilient bias characteristic such as clip, when the resilient actuating part 73 is bounced up When, the resilient bias structure 734 then can elastic displacement return to normal position without hindering actuated piece bouncing up, the piezo-resistance 71 second surface 712 is with the wire 741 of substrate 74 and, as the electrical connector with the 3rd lug plate 60.Certainly, originally In embodiment, the substrate 74 and wire 741 can be constituted with the one bending extension of the 3rd lug plate 60.

An at least temperature-sensitive binding element 72, the first surface 711 in the piezo-resistance 71 is cohered in solid fraction, while by the elasticity The solid fraction of free end 732 of actuated piece 73 is cohered and is compressed on the first surface 711 of piezo-resistance 71, makes the resilient actuating part 73 in tool Bounce compressive state；In the present embodiment, the temperature-sensitive binding element 72 melts metallic compound (for example soon for the low temperature of metal class：One As fuse metallic compound) constituted, but be not limited to this, it can be also made up of nonmetallic heat-sensitive materials, because This, as long as when the temperature rise of piezo-resistance (surge absorber) 71 reaches set temperature, and such material does not rise paramount in temperature The conduction or electron opaque material melted when warm all may be used.This compound is have fixed fusing point, and quick chain rupture melts characteristic, is held Do not repeat.

One pushing part 75, its front end 752 corresponds to the pairing sheet metal 41, and bottom 751 corresponds to the piezo-resistance 71 And the free end 732 of the resilient actuating part 73；In the present embodiment, the pushing part 75 is made up of an independent push rod, its bottom 751 free ends 732 for being located at the resilient actuating part 73, and in a preferred embodiment, the bottom 751 can coordinate the resilient actuating The free end 732 of part 73, is set as being embedded in the body of blocking, another its front end 752 close to the pairing sheet metal 41, when elasticity cause When moving part 73 is bounced up, first contact terminal 421 on the pairing sheet metal 41 is forced to depart from second contact terminal 511.Additionally, such as Shown in Fig. 6 A, in another possible embodiments, the pushing part 75 can be integrally formed by the free end 732 of the resilient actuating part 73 Nose bar is constituted, and so can also be implemented.Additionally, such as the location swap of the piezo-resistance 71 and the resilient actuating part 73 is consolidated Connect, when the resilient actuating part 73 is bounced up, can first ejection piezo-resistance 71, resynchronisation makes the displacement of pushing part 75, or elasticity The base portion 731 of actuated piece 73 and the free end 732 that can be bounced up reversely are installed, and so can also be implemented.Certainly, foregoing elasticity is caused The resilient bias structure 734 of moving part 73 increases elastic force, and then replaces built-in free end 732 to make equivalent use so that temperature-sensitive connects Compound 72 is movable when softening, it is sufficient to can reach effect of ejection, can also implement.

Please continue refering to Fig. 5 and Fig. 5 A, first contact terminal 421 was in contact conducting (ON) with second contact terminal 511 originally When, but when running into high voltage and making rise above the fusing value of the temperature-sensitive binding element 72 the temperature moment of piezo-resistance 71, can force The temperature-sensitive binding element 72 softens, and makes the press power pop-off of the resilient actuating part 73 and bounce up, and then the ejection pushing part 75 displacements, force the first contact terminal 421 on the contact spring 42 to depart from second contact terminal 511, make first lug plate 40 Under the situation of the pairing sheet metal 41 and not deformed escape, you can moment forms breaking (OFF) with second lug plate 50, enters And piezo-resistance 71 is stopped heating, and stop power supply to rear end equipment.

On take off piezo-resistance 71 disclosed in embodiment for one, belong to a kind of two wires molded line road, but be not limited to this； Fig. 7 to Fig. 9 is the structure sectional view and primary clustering exploded perspective view of second embodiment of the invention.Its display surging of the invention Absorb and breaking structure 70 is included：Two piezo-resistances 71a, 71b and at least one resilient actuating part 73a, it can be used as one Plant the reinforced circuit in two wires or simple three line styles circuit.Wherein the first piezo-resistance 71a, it possess a first surface 711 and One second surface 712 of opposing face, and two surface 712 is located at the bottom of the substrate 74；The free end of resilient actuating part 73a 732 are compressed on the first surface 711 of first piezo-resistance 71a, and the base portion 731 is provided with one first extension 733a, and Connect with the electrical of second lug plate 50 using the first extension 733a as the first surface 711 of first piezo-resistance 71a Connect；An at least temperature-sensitive binding element 72, the first surface 711 in first piezo-resistance 71a is cohered in solid fraction, while by the elasticity The first surface 711 for being compressed on first piezo-resistance 71a is cohered in the free end 732 of actuated piece 73a, makes the resilient actuating part be in Tool bounce compressive state；The first surface 711 of second piezo-resistance 71b is compressed on resilient actuating part 73a；One is electrically connected Fitting 73c abuts in the second surface 712 of second piezo-resistance 71b, and its side is provided with one second extension 733b, used as this The second surface 712 of the second piezo-resistance 71b is used with the electric connection of the 3rd lug plate 60；In the present embodiment, this first, Two extension 733a, 733b are also set as a resilient bias structure 734, first and second extension 733a, 733b, with the elasticity partially The outer end for moving structure 734 imposes transverse elasticity displacement in advance, make its respectively blocking be positioned at second lug plate the 50, the 3rd and connect The one of line piece 60 estimates the first draw-in groove 52, the second draw-in groove 61 (as shown in Figure 9) for bouncing up positioning, its purpose and a upper embodiment It is identical.One pushing part 75, its front end 752 corresponds to the pairing sheet metal 41, and bottom 751 corresponds to second piezo-resistance The second surface 712 of 71b and the center of electrical connector 73c.In the present embodiment, electrical connector 73c centers are provided with a positioning Hole 735, the pushing part 75 is made up of an independent push rod, and its bottom 751 is fixed on the location hole 735 of electrical connector 73c, Close to the pairing sheet metal 41, when the resilient actuating part 73 is bounced up, the ejection displacement of pushing part 75 forces this for its front end 752 First contact terminal 421 on pairing sheet metal 41 departs from second contact terminal 511, and then makes the first piezo-resistance 71a and the Two piezo-resistance 71b stop heating, and stop power supply to rear end equipment.And it is predetermined that Fig. 7 A are display resilient bias structure 734 The schematic diagram of the shape of position.

Fig. 8 is that temperature-sensitive binding element 72 softens and resilient actuating part 73 unclamps in display Fig. 7, and rod member produces displacement and formed and connect The schematic diagram of point breaking (OFF), during Fig. 8 A are display Fig. 8, the resilient bias component 734 is the signal of the shape for having reached positioning Figure；

In the present embodiment, the substrate 74 also may be selected not with the 3rd lug plate 60 mutually and connect, and only with the second extension The substrate 74 is separately changed to earthing pole (G) and used by 733b as the electrical connector with the 3rd lug plate 60, then can turn into one The protection switch of simple three line styles circuit.

Furthermore, Figure 10 to Figure 12 is display third embodiment of the invention, and the sudden-wave absorbing and breaking structure 70 are included：Three Individual piezo-resistance 71a, 71b, 71c, two temperature-sensitives binding element 72a, 72b, and two resilient actuating parts 73a, 73b；It is belonging to A kind of complete molded line road of three lines.It is with the difference of second embodiment：Also include that one the 3rd piezo-resistance 71c is located at one second On temperature-sensitive binding element 72b and one second resilient actuating part 73b.Wherein one first piezo-resistance 71a, it possesses a first surface 711 and a second surface 712 of opposing face, and two surface 712 is located at the bottom of the substrate 74；One first temperature-sensitive binding element 72a, the first surface 711 in first piezo-resistance 71a is cohered in solid fraction, at the same by the first resilient actuating part 73a from The first surface 711 for being compressed on first piezo-resistance 71a is cohered by end 732, the first resilient actuating part 73a is rebounded in tool Force compresses state, the first resilient actuating part 73a is additionally included in the base portion 731 and is provided with one first extension 733a, as this The first surface 711 of one piezo-resistance 71a is electrically connected with second lug plate 50 and is used；One second piezo-resistance 71b, its tool A standby first surface 711 and a second surface 712 of opposing face second piezo-resistance 71b are suppressed with the first surface 711 On the first resilient actuating part 73a；One second temperature-sensitive binding element 72b, coheres the of second piezo-resistance 71b in solid fraction Two surfaces 712, while the free end 732 of the second resilient actuating part 73b is cohered being compressed on the of second piezo-resistance 71b Two surfaces 712, make the second resilient actuating part 73b in tool bounce compressive state, and the second resilient actuating part 73b is additionally included in The base portion 731 is provided with one second extension 733b, used as second surface 712 and the 3rd wiring of second piezo-resistance 71b Piece 60 is electrically connected with and is used；One the 3rd piezo-resistance 71c, its second surface for possessing a first surface 711 and opposing face 712, the 3rd piezo-resistance 71c are compressed on the second resilient actuating part 73b with the second surface 712；One electrical connector 73c, abuts in the first surface 711 of the 3rd piezo-resistance 71c, and its side is provided with one the 3rd extension 733c, as this Three piezo-resistance 71c are electrically connected with the substrate 74 and are used.One pushing part 75, its front end 752 corresponds to the pairing sheet metal 41, And bottom 751 corresponds to the first surface 711 of the 3rd piezo-resistance 71c and the center of electrical connector 73c.The present embodiment In, the substrate 74 also includes being provided with an electric-conductor 742, electrical connector 73c is electrically connected to, in electrical connector 73c Centre is provided with a location hole 735, and with the fixed bit of bottom 751 for the pushing part 75, the 3rd extension 733c leads relative to this The bottom of electric part 742 be provided with one can separated in synchronization contact point 736.

In the present embodiment, first and second extension 733a, 733b of the first and second resilient actuating part 73a, 73b can also be set as One resilient bias structure 734, and the outer end of the resilient bias structure 734 is imposed into transverse elasticity displacement in advance determines its blocking Position is in the lug plate 60 of the second lug plate 50 and the 3rd, consequently, it is possible to work as that any temperature-sensitive binding element softens and free end 732 releases When, the downtrodden resilient bias structure 734, except can synchronously increase the first resilient actuating part 73a or the second resilient actuating part The displacement of 73b bounces up performance, and because the outer end of resilient bias structure 734 because being moved to predetermined sprung-open position in advance, is allowed to not The pop open action of resilient actuating part can be hindered again with conductive function.Additionally, the electric-conductor 742 can on demand by wire or More than one conducting strip constitute all can, as long as not influenceing the displacement of the grade component of pushing part 75, its it is optional as ground Pole or negative pole are used, and this example is then used as earth polar.And as shown in Figure 10 A, when any resilient actuating part displacement is bounced up, the electricity The contact point 736 of connector 73c is separated with this as the electric-conductor 742 in earth polar, makes the 3rd pressure-sensitive electricity by earth polar surging high pressure Resistance 71c stops heating, and because of the synchronous shift of pushing part 75, makes the first contact terminal 421 that positive pole is input into positive pole output Second contact terminal 511 is separated, and the back segment equipment powered by positive pole is stopped power supply and by the piezo-resistance of positive pole surging high pressure 71a, 71b also stop heating.Separately, the side of the substrate 74 includes being provided with one the 4th lug plate 743, and the 4th lug plate 743 is stretched (not shown) outside to the housing 31.It is the application of function of this kind of switch, Yin Feiben due to the setting of above-mentioned various lug plates The patent purpose of invention, appearance is not repeated.

Therefore the present invention is in the inner space of housing 31, it is provided with by the institute of 41 and two contact terminal of the pairing sheet metal 421,511 The switch region of composition, the sudden-wave absorbing being made up of the piezo-resistance 71, temperature-sensitive binding element 72, resilient actuating part 73 etc. and open circuit Structure 70.The switch region is traditional switching member, thus different switching molding assemble the position for setting can different, it is but of the invention The sudden-wave absorbing and the technological means of breaking structure 70 for being used will not change, that is to say, that no matter switch region is to be located at the housing The diverse locations such as top, side or lower section inside 31, its first contact terminal 421 contacts conducting (ON) with the second contact terminal 511 When, run into surging excess or high pressure is struck by lightning when making to be raised in the temperature of piezo-resistance 71, it is still to be softened using temperature-sensitive binding element 72 Unclamp resilient actuating part 73, the ejection pushing part 75 is to switch region displacement, you can two contact terminals is formed the skill of breaking (OFF) Art feature will not change, therefore, appearance is not illustrated one by one.Furthermore, the composition for implementing to be not limited to take off accompanying drawing of the invention, such as Using technological means is taken off in the present invention, to coordinate the position of switch region, the sudden-wave absorbing and breaking structure, it is located at the housing 31 Interior position, direction change, increases driving component etc.；Or it is another in the another adjunction current insurance silk in this inside and outside, gas-discharge tube, Noise control acoustic capacitance or install additional surging quantity mode or change pin, still belong to it is of the invention can practical range, appearance do not repeat.

The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, all It is any simple modification, equivalent variations and the modification made to above example according to technical spirit of the invention, still falls within In the range of technical solution of the present invention.

In sum, the present invention is in structure design, using in practicality and cost benefit, complying fully with industry development institute Need, and disclosed structure is also, with unprecedented innovative structure, with novelty, creativeness, practicality, to meet relevant The regulation of patent of invention important document, therefore lift application in accordance with the law.

Claims

1. the switch module of a kind of built-in sudden-wave absorbing and breaking structure, including：

One housing, its upper end is provided with a briquetting, and is arranged with the first lug plate, the second lug plate and the 3rd lug plate in bottom, A pair of alloy piece is connected wherein on first lug plate, one first contact terminal is provided with the middle of the pairing sheet metal, this second connects Line piece epimere portion surface is provided with second contact terminal that can be in contact with it relative to first contact terminal；

One moving part, its one end is hubbed on the briquetting bottom, and the other end interlocks the pairing sheet metal, and then makes the pairing sheet metal On the first contact terminal contact second contact terminal and form conducting, and when electric current overloads, the varicose of the pairing sheet metal Spend and deformed because temperature is raised, and first contact terminal is departed from second contact terminal and form open circuit, to constitute an electric current The form of overcurrent protection switch；It is characterized in that：

One sudden-wave absorbing and breaking structure, inside build in the housing, and it includes：

At least one piezo-resistance, its second surface for possessing a first surface and opposing face, and two surface are located at a base The bottom of plate；

At least a resilient actuating part, is made up of the spring part that can be compressed, and the resilient actuating part can bullet with a base portion and one The free end for rising, and the free end is compressed on the first surface of the piezo-resistance, the resilient actuating part is included in the base portion An extension is provided with, and using the extension as the first surface of the piezo-resistance and the electrical connector of second lug plate；

At least a temperature-sensitive binding element, the first surface in the piezo-resistance is cohered in solid fraction, at the same by the resilient actuating part from The first surface for being compressed on the piezo-resistance is cohered by end, makes the resilient actuating part in tool bounce compressive state；

One pushing part, its front end corresponds to the pairing sheet metal, and bottom corresponds to the piezo-resistance and the resilient actuating part Free end；

Whereby, when first contact terminal contacts conducting with second contact terminal, running into surging excess or high voltage makes this pressure-sensitive Resistance temperature moment rises above the fusing value of the temperature-sensitive binding element, forces the temperature-sensitive binding element to soften, and makes the resilient actuating part Free end release and flick, with the ejection pushing part displacement, force the first contact terminal on the pairing sheet metal depart from this second Contact terminal, makes first lug plate form open circuit with second lug plate.

2. the switch module of built-in sudden-wave absorbing according to claim 1 and breaking structure, it is characterised in that the extension Portion is set as a resilient bias structure.

3. the switch module of built-in sudden-wave absorbing according to claim 1 and breaking structure, it is characterised in that described pressure-sensitive The second surface of resistance is using the substrate and a wire as the electrical connector with the 3rd lug plate, and the substrate and wire can be with 3rd lug plate is integrally formed.

4. the switch module of built-in sudden-wave absorbing according to claim 1 and breaking structure, it is characterised in that the promotion Portion can be an independent push rod.

5. the switch module of built-in sudden-wave absorbing according to claim 1 and breaking structure, it is characterised in that the promotion Portion can be by the integrally formed nose bar in resilient actuating part top.

6. the switch module of a kind of built-in sudden-wave absorbing and breaking structure, including：

One housing, its upper end is provided with a briquetting, and is arranged with the first lug plate, the second lug plate, the 3rd lug plate in bottom, its In a pair of alloy piece is connected on first lug plate, one first contact terminal is provided with the middle of the pairing sheet metal, second wiring Piece epimere portion surface is provided with second contact terminal that can be in contact with it relative to first contact terminal；

One first piezo-resistance, its second surface for possessing a first surface and opposing face, and two surface are located at a substrate Bottom；

At least a resilient actuating part, is made up of the spring part that can be compressed, and the resilient actuating part can bullet with a base portion and one The free end for rising, and the free end is compressed on the first surface of first piezo-resistance, the resilient actuating part is additionally included in The base portion is provided with one first extension, and second is connect with this using first extension as the first surface of first piezo-resistance The electrical connector of line piece；

An at least temperature-sensitive binding element, the first surface in first piezo-resistance is cohered in solid fraction, while by the resilient actuating part Free end cohere the first surface for being compressed on first piezo-resistance, make the resilient actuating part in tool bounce compressive state；

The of one second piezo-resistance, its second surface for possessing a first surface and opposing face, and second piezo-resistance One surface rolling is on the resilient actuating part；

One electrical connector, abuts in the second surface of second piezo-resistance, and its side is provided with one second extension, as this The second surface of two piezo-resistances is used with the electric connection of the 3rd lug plate；

One pushing part, its front end correspond to the pairing sheet metal, and bottom correspond to second piezo-resistance second surface and The center of electrical connector；

Whereby, when first contact terminal contacts conducting with second contact terminal, running into surging excess or high voltage makes this wherein Any piezo-resistance temperature moment rises above the fusing value of the temperature-sensitive binding element, forces the temperature-sensitive binding element to soften, and makes the bullet Property actuated piece free end release and flick, with the ejection pushing part displacement, force the first contact terminal on the pairing sheet metal to take off From second contact terminal, first lug plate is set to form open circuit with second lug plate.

7. the switch module of built-in sudden-wave absorbing according to claim 6 and breaking structure, it is characterised in that described the First, two extensions are set as a resilient bias structure.

8. the switch module of built-in sudden-wave absorbing according to claim 6 and breaking structure, it is characterised in that described to be electrically connected Fitting center is provided with a location hole, with the bottom fixed bit for the pushing part.

9. the switch module of a kind of built-in sudden-wave absorbing and breaking structure, including：

One first resilient actuating part, is made up of the spring part that can be compressed, and the first resilient actuating part has a base portion and one The free end that can be bounced up, and the free end is compressed on the first surface of first piezo-resistance, the first resilient actuating part Be additionally included in the base portion and be provided with one first extension, and using first extension as the first surface of first piezo-resistance with The electrical connector of second lug plate；

One first temperature-sensitive binding element, the first surface in first piezo-resistance is cohered in solid fraction, while first elasticity is caused The first surface for being compressed on first piezo-resistance is cohered in the free end of moving part, the first resilient actuating part is forced in tool bounce-back Contracting state；

The of one second piezo-resistance, its second surface for possessing a first surface and opposing face, and second piezo-resistance One surface rolling is on the first resilient actuating part；

One second resilient actuating part, is made up of the spring part that can be compressed, and the second resilient actuating part has a base portion and one The free end that can be bounced up, and the free end is compressed on the second surface of second piezo-resistance, the second resilient actuating part It is additionally included in the base portion and is provided with one second extension, the second surface as second piezo-resistance is electrical with the 3rd lug plate Downlink connection is used；

One second temperature-sensitive binding element, the second surface in second piezo-resistance is cohered in solid fraction, while second elasticity is caused The second surface for being compressed on second piezo-resistance is cohered in the free end of moving part, the second resilient actuating part is forced in tool bounce-back Contracting state；

One the 3rd piezo-resistance, its second surface for possessing a first surface and opposing face, the 3rd piezo-resistance with this Two surface rollings are on the second resilient actuating part；

One electrical connector, abuts in the first surface of the 3rd piezo-resistance, and its side is provided with one the 3rd extension, as this Three piezo-resistances are connected with the electrical property of substrate and are used；

One pushing part, its front end correspond to the pairing sheet metal, and bottom correspond to the 3rd piezo-resistance first surface and The center of the electrical connector；

Whereby, when first contact terminal contacts conducting with second contact terminal, running into surging excess or high voltage makes this wherein Any piezo-resistance temperature moment rises above the fusing value of the temperature-sensitive binding element, forces the temperature-sensitive binding element to soften, and makes this its In the free end of any resilient actuating part release and flick, with the ejection pushing part displacement, force first on the pairing sheet metal Contact terminal departs from second contact terminal, first lug plate is formed open circuit with second lug plate.

10. the switch module of built-in sudden-wave absorbing according to claim 9 and breaking structure, it is characterised in that the base Plate is additionally provided with an electric-conductor, is electrically connected to the electrical connector, and the electrical connector center is provided with a location hole, with for this The bottom fixed bit of pushing part, the 3rd extension relative to the bottom of the electric-conductor be provided with one can separated in synchronization contact point.