CN100472695C - Circuit control protector - Google Patents

Abstract

The invention relates to a circuit control protector, wherein one knob is axially mounted at the opening of box, while one end of knob downwards extends to contact one end of contact plate, and another end of knob is axially connected to a linked element whose one end is arranged with extending rod; said linked element contacts another end of contact plate; the box has one cycle path; the extending rod is inserted into the cycle path to displace and position along the ring; via pressing the knob to rotate it, one end of knob pushes one end of contact plate, and the linked element at another end of knob pushes another end of contact plate, to make two ends of contact plate move up-and-down, to form the power-on or power-off states of circuit; when the knob is at the position that the circuit is power one, the pushing element do not contact and limit another end of contact plate, to make it freely jump; when the current is over, the contact plate is heated and deformed to jump reversed to cut off the circuit.

Description

Circuit-controllable protector

Technical field

The present invention relates to a kind of protector of circuit control, by the pressing button swing, button promotes contact chip, makes contact chip two ends bob, forms energising (ON) or outage (OFF) state of circuit loop; When button is positioned at the position of circuit turn-on (ON), this button is butt and limit contact chip not, during current overload, and contact chip temperature distortion and the back-flexing spring reaches the escape outage (OFF) of circuit loop.

Background technology

The operation of power control switch mainly is to carry out energising (ON) and outage (OFF) two kinds of start processes of current circuit.Except carrying out energising (ON) and outage (OFF) two kinds of functions, existing many constructions of switch also have the function of current overload automatic escape outage when overheated, avoid the fuse of current circuit when current overload or circuit breaker can not real time reaction to cut off the power supply or the danger of escape.

The patent of various known power control switch is too numerous to enumerate at preceding application case, as the United States Patent (USP) the 5th, 262 of applicant's application, No. 748, other United States Patent (USP) the 4th, 167, No. 720, the 4th, 937, No. 548, the 5th, 223, No. 813, the 5th, 451, No. 729, the 5th, 558, No. 211 ... wait too numerous to enumerate, but these patents all have common shortcoming at preceding application case, and are as follows:

(1) assembly of interlock is various, and the stroke complexity of interlock produces the non real-time start relation between button and terminal assembly, has also improved manufacturing cost;

(2) the start relation is unreliable, increases the fault chance, is unfavorable for that the consumer uses and the security consideration of electricity consumption;

When (3) the current overload circuit was overheated, contact flat spring escape outage in real time or escape were incomplete, made circuit still be current conductive state, and circuit continues overheated and causes danger;

When (4) the current overload circuit was overheated, contact flat spring was half escape state, rebound "on" position more again when contact flat spring cools off, and the formation spark that continues to switch on repeatedly, cuts off the power supply causes danger; And the electronics in the current circuit, electric equipment be because of switching on repeatedly, cut off the power supply, and when machine or can't normal operation, shorten useful life, even infringement and can't using.

For effectively carrying out the interlock action relationships of power control switch intraware really, simplify the power control switch assembly to reduce cost of manufacture, guarantee in current overload state down can real time reaction and the escape outage to strengthen Electrical Safety, the lasting research improvement of power control switch structure becomes manufacturer's important topic.

Summary of the invention

The technical problem that institute's desire solves:

The invention reside in the assembly complexity, cost of manufacture height, the continuous action relation that solve known various power control switch serial verb constructions and reach power control switch many shortcomings of fault in operation slowly for indirect, the reaction of interlock stroke, particularly solving known power control switch when current overload is overheated, (OFF) escape outage of escape outage in real time or escape are incomplete, cause circuit to continue the superheat state of circulation; And solve overload when overheated, and contact flat spring is half escape state, rebound "on" position more again when contact flat spring cool off, and the formation spark that continues to switch on repeatedly, cuts off the power supply causes the problem of danger.

The technical scheme of dealing with problems:

A kind of circuit-controllable protector, wherein, be articulated in the opening of box body with a button activity, one end of button extends an end of butt one contact chip downwards, the button other end articulates a moving part, and an end of this moving part is provided with extension rod, the other end of the aforementioned contact chip of this moving part butt, box body is provided with a circulating path, and the extension rod of this moving part stretches in this circulating path and along ring-type displacement, location; By the pressing button swing, the end that button is extended promotes an end of contact chip, and the moving part of the button other end promotes the other end of contact chip, makes contact chip two ends bob, forms energising (ON) or outage (OFF) state of circuit loop; When button is positioned at the position of circuit turn-on (ON), the moving part end displacement that this button articulates is to the butt not and the position of limiting contact chip, during current overload, and contact chip temperature distortion and oppositely spring forms the outage (OFF) of circuit loop.

The beneficial effect of technical scheme of the present invention:

The present invention is a kind of circuit-controllable protector, and its main purpose and beneficial effect are that an end of button extends, the other end articulates moving part, and box body is provided with a circulating path, this circulating path guiding moving part ring-type displacement, location; By the pressing button swing, the end that button is extended promotes an end of contact chip, and moving part promotes the other end of contact chip, makes contact chip two ends bob, and circuit loop forms the state of energising (ON) or outage (OFF); When button is positioned at the position of circuit turn-on (ON), the moving part of this button is butt and limit contact chip not, and during current overload, contact chip temperature distortion and back-flexing spring form outage (OFF) state of circuit loop, reach aim of safe power utilization.

An inferior purpose of the present invention and beneficial effect are, the moving part butt contact chip that the end that button extends and the other end articulate, directly the control contact chip beats to form circuit turn-on (ON) or open circuit (OFF), effectively simplify the linked component of power control switch, make the interlock of switch more direct, rapid, reduce the delay issue of assembly interlock stroke, also reduce the fault of power control switch.

A further object of the present invention and effect are, be positioned at the position of circuit turn-on (ON) when button, the end displacement of the moving part of this button is to the butt not and the position of limiting contact chip, when circuit is overheated, contact flat spring temperature distortion and back-flexing, escape rapidly, and be complete escape off-position, avoid contact flat spring when cooling rebound "on" position more again, can not continue to switch on repeatedly, cut off the power supply forms the contact spark and causes danger.

The purpose of extension of the present invention is, simplifies the assembly of the whole interlock of power control switch, and assembling can effectively reduce manufacturing cost easily, and prolongs the useful life of power control switch structure, reduces consumption user's expenditure.

Description of drawings

Fig. 1 is the assembled sectional view of the embodiment of the invention, and it shows the state of the outage (OFF) of the embodiment of the invention;

Fig. 2 is the assembled sectional view of the embodiment of the invention, and it shows the state of the energising (ON) of the embodiment of the invention;

Fig. 3 is the assembled sectional view of the embodiment of the invention, and it shows the embodiment of the invention when energising (ON) situation current overload, and contact chip and contact site back-flexing escape promote the free displacement of moving part, become the state of outage (OFF);

Fig. 4 is the three-dimensional exploded view of the embodiment of the invention;

Fig. 5 is the local amplification stereogram of the embodiment of the invention;

Fig. 6 is the assembled sectional view of the embodiment of the invention two, and it shows the state of the outage (OFF) of the embodiment of the invention;

Fig. 7 is the assembled sectional view of the embodiment of the invention two, and it shows the state of the energising (ON) of the embodiment of the invention;

Fig. 8 is the assembled sectional view of the embodiment of the invention two, and when it was presented at energising (ON) situation current overload, contact chip and contact site back-flexing escape promoted the free displacement of moving part, become the state of outage (OFF).

Among the figure

1 box body, 11 first contact terminals

12 second contact terminals, 121 second contacts

13 circulating paths, 131 central guide blocks

132 left side guide blocks, 133 right side guide blocks

14 ring-type ladder accesses, 2 buttons

20 axostylus axostyles, 21 protuberances

22 moving parts, 220 axis holes

221 extension rods 23 extend groove

3 contact chips, 31 contact sites

311 first contacts, 312 lugs

313 protrude sheet 32 elastic components

321 first button holes, 322 second button holes

Embodiment

For disclosing purpose of the present invention, feature and effect in detail, now by following preferable specific embodiment, conjunction with figs. followingly is described in detail the present invention:

Shown in Fig. 1-3, be the assembled sectional view of the embodiment of the invention, contact chip back-flexing escape became the state of outage (OFF) when it showed the outage (OFF), energising (ON) of the embodiment of the invention and current overload; A kind of circuit-controllable protector of the present invention, it consists predominantly of a box body 1, a button 2, a contact chip 3; Wherein,

This box body 1 is a hollow form, its top is provided with an opening, the bottom surface group of box body 1 is established at least two contact terminals, be two contact terminals in the present embodiment, be respectively first, second contact terminal 11,12, one end of first contact terminal, 11 top these contact chips 3 of kink fixed combination, second contact terminal, 12 tops are combined with one second contact 121, in box body 1 inside one circulating path 13 is set in addition, with reference to figure 4, Fig. 5, this circulating path 13 is made of a plurality of guide pad that does not join mutually in the present embodiment, for example: these a plurality of guide pads are polygonal three guide pads, are respectively the central guide pad 131 of summit triangle up, left side guide pad 132, right side guide pad 133.

This button 2 is a calyptra, and button 2 is articulated in the opening of box body 1 top versatilely, and making button 2 be able to the articulated section is that swing in the axle center; One end (left end) of button 2 extends and forms protuberance 21 downwards, button 2 other ends (right-hand member) articulate a moving part 22, this moving part 22 is able to drive-connecting shaft with respect to button 2 rotary oscillations, the end of moving part 22 is provided with an extension rod 221, this extension rod 221 stretches in the circulating path 13 of aforementioned box body 1, the extension rod 221 ring-type displacements and the location of these circulating path 13 guiding moving parts 22.

This contact chip 3 generally is a rubber-like metal lamellar body, and it forms the curved arc shape, and contact chip 3 lamellar bodies can be beated to two side faces; One end fixed combination of contact chip 3 is on first contact terminal 11 of aforementioned box body 1, and the other end of contact chip 3 is a free end; Establish ㄇ font groove and make central part form a contact site 31 in contact chip 3 lamellar bodies, these contact site 31 1 ends are connected near contact chip 3 free-ended sides, contact site 31 combinations are provided with first contact 311, the free end of contact site 31 protrudes from the plane of contact chip 3 lamellar bodies, in addition with reference to figure 4, the free end of this contact site 31 is established a lug 312, with these lug 312 active buckles in first button hole 321 of elastic component 32 ends, this elastic component 32 is the lamellar body of arc, the other end of elastic component 32 is provided with second button hole 322, with the protrusion sheet 313 of these second button hole, 322 active buckles in contact chip 3 lamellar body ㄇ fonts fluting; Elastic force by the compression generation of elastic component 32 two ends, the free end bending up or down of the aforementioned contact site 31 of ejection is beated, and when the free end of contact chip 3 is bent downwardly when beating, the make progress back-flexing spring of the free end of aforesaid contact site 31, when the free end of contact chip 3 is bent upwards when beating, the downward back-flexing spring of the free end of contact site 31, promptly, the free end of the free end of contact chip 3 and contact site 31 keeps the state of back-flexing spring mutually, moreover, aforementioned contact site 31 is by the elastic force of the elastic component 32 of contact site 31 free ends institute snapping, and is crooked really and be positioned the reverse curved arc side of contact chip 3.

When combination was implemented, button 2 extended an end (free end) of protuberance 21 butts one contact chip 3 of an end, the arc lateral surface of the elastic component 32 of aforementioned contact chip 3 other end contact sites of moving part 22 end butts 31 snappings that button 2 articulates.

The present invention is in the enforcement of general energising (ON) with outage (OFF); Please refer to Fig. 1, when the left end of pressing button 2 downward, the downward protuberance 21 of this button 2 left ends extension compresses the free end of contact chip 3 downwards and beats downwards, make the upwards oppositely spring of contact site 31 free ends of contact chip 3, first contact 311 on the contact site 31 separates with second contact 121, becomes outage (OFF) state; Simultaneously, button 2 right-hand members upwards, drive moving part 22 upwards, the extension rod 221 of moving part 22 ends is from the bottom right position top position displacement left of circulating path 13, i.e. following right-hand from central guide block 131, along the inclined-plane, right side of central guide block 131 and the path between the right side guide block 133 and make progress, to left dislocation, get back to the top of central guide block 131, that is outage (OFF) state, from energising (ON) state of Fig. 2 to Fig. 1.

When the right-hand member of pressing button 2 downward, the extension rod 221 of moving part 22 ends is along the top position of circulating path 13, downwards, to left dislocation, be displaced to the bottom right position of circulating path 13 more to the right, promptly, from the left tilted surface of central guide block 131 and the path between the left side guide block 132 and downwards, to left dislocation, be displaced to the following right-hand of central guide block 131 more to the right, make the end of moving part 22 that the elastic component 32 of contact chip 3 is downward, to left translation, contact site 31 free ends of elastic component 32 left end interlock contact chips 3 are to bottom offset, spring, first contact 31 on the contact site 31 contacts with second contact 121, becomes energising (ON) state, as Fig. 2; At this moment, the free end of contact chip 3 is spring upwards, and is opposite with the direction of contact site 31 free ends spring downwards.

As above-mentioned, pressing button 2 left ends, right-hand member swing repeatedly, the protuberance 21 that makes button 2 extend an end promotes the free end of contact chip 3 and the elastic component 32 of contact chip 3 right-hand members with the moving part 22 ends difference butt that articulates, upper and lower the beating of contact site 31 free ends of contact chip 3, make first contact 31 of contact site 31 separate, contact, form outage (OFF) or energising (ON) state of circuit loop with second contact 121 of second contact terminal 12.

The invention is characterized in: described button 2 one ends (left end) extend to form protuberance 21, button 2 other ends (right-hand member) articulate moving part 22, moving part 22 ends are provided with extension rod 221, this extension rod 221 stretches in the circulating path 13 of box body 1 setting, by the extension rod 221 ring-type displacements and the location of these circulating path 13 guiding moving parts 22; By pressing button 2 swings, it is downward that the protuberance 21 that button 2 one ends are extended promotes the free end (left end) of contact chips 3, contact site 31 free ends of contact chip 3 are oppositely spring upwards, first contact 311 is separated with second contact 121, form the outage (OFF) of circuit loop, or it is downward by the elastic component 32 of moving part 3 ends promotion contact chip 3 other ends, these contact site 31 free ends of interlock are bent downwardly spring, first contact 311 is contacted with second contact 121, form the energising (ON) of circuit loop;

Be positioned at the position of circuit turn-on (ON) when button 2, as Fig. 2, moving part 22 ends of this button 2 are positioned at elastic component 32 right flanks of contact chip 3, and still have a segment distance between the extension rod 221 of moving part 22 and the right edge of circulating path 13, be to still have a segment distance between the extension rod 221 of moving part 22 and the right side guide block 133, this distance provides the space of extension rod 221 free displacements, make moving part 22 ends can butt and limit the elastic component 32 of contact chip 3, so can butt and limits the elastic component 32 of contact chip 3 in moving part 22 ends, during current overload, contact chip 3 is the back-flexing spring with contact site 31 temperature distortions, contact chip 3 free ends are downward, contact site 31 free ends are spring upwards, make that first contact 311 separates with second contact, 121 escapes of second contact terminal 12 on the contact site 31, form outage (OFF) the state person of circuit loop, as shown in Figure 3;

Simultaneously, because of the upwards spring of contact site 31 free ends, promote elastic component 32 free ends (left end) to top offset, elastic component 32 integral body are the axle center with the right-hand member, clockwise rotate, and with the end displacement to the right of the right side cambered surface ejection moving part 22 of elastic component 32; The user is behind overload trip, the left end of pressing button 2 is downward, the extension rod 221 that can drive moving part 22 moves to the top position along the position, bottom right of circulating path 13, promptly by the path movement between central guide block 131 and the right side guide block 133, be returned to the state that re-uses of general outage (OFF), as Fig. 1.

With reference to figure 6-8, be the assembled sectional view of the embodiment of the invention two in addition, show the state of its outage (OFF), conducting (ON) and overload trip (TRIP-FREE); Embodiment two consists predominantly of a box body 1, a button 2, a contact chip 3; Wherein,

This box body 1 structure is same as the box body 1 of previous embodiment; Unique difference is: a ring-type ladder access 14 is set in the box body 1 replaces aforesaid circulating path 13, promptly replace central guide block 131, the left side guide block 132 and right side guide block 133 structures of a plurality of guide blocks.

This button 2 is entirely identical to the overall structure of the button 2 of previous embodiment.

This contact chip 3 is entirely identical to the overall structure of the contact chip 3 of previous embodiment.

When combination was implemented, the extension rod 221 of moving part 22 ends that this button 2 articulates stretched in the ring-type ladder access 14 of box body 1 setting, by the extension rod 221 ring-type displacements and the location of these ring-type ladder access 14 guiding moving parts 22.

The operational motion of embodiment two, the action of interlock, and the effect of being reached are entirely identical to aforesaid embodiment.

With reference to figure 7, be positioned at the position of circuit turn-on (ON) when button 2, moving part 22 ends of this button 2 are positioned at elastic component 32 right flanks of contact chip, and still have a segment distance between the right edge of the extension rod 221 of moving part 22 and the ring-type ladder access 14 of box body 1, this distance provides 221 1 sections free displacement spaces of extension rod of moving part 22, make moving part 22 ends can butt and limit the elastic component 32 of contact chip 3, during current overload, contact chip 3 is the back-flexing spring with contact site 31 temperature distortions, the free end of contact chip 3 is downward, contact site 31 free ends are spring upwards, first contact 311 of contact site 31 is separated with second contact, 121 escapes of second contact terminal 12, form outage (OFF) state of circuit loop.

Course of action simplification of the present invention, rapid; When current overload, be not subjected to the obstruction of switch module action, contact chip 3 and contact site 31 are able to temperature distortion and reverse escape, make circuit loop become outage (OFF) state completely, really can reach the fail safe of electricity consumption.

From the above mentioned, assembly structure of the present invention, start relation, tool practical effect really, and be new design not seen before has practicality with creative, thus met the important document that Patent Law is invented, so in accordance with the law the mere formality application it.For this reason, careful your auditor is detailed to give examination, and prays and grant quasi patent early, to feeling moral just.

Below the present invention has been done a detailed description, only the above only is preferred embodiment of the present invention, when not limiting scope of the invention process.Be that all equalizations of doing according to the present patent application scope change and modify etc., all should still belong in the patent covering scope of the present invention.

Claims (10)

1. circuit-controllable protector, it consists predominantly of a box body, a button, a contact chip, a moving part; It is characterized in that,

This box body is a hollow form, and its top is provided with an opening, and the bottom surface group of box body is established at least two contact terminals, and box body inside is provided with a circulating path;

Be articulated in to this button activity the opening of box body top, it is that swing in the axle center that button is able to the articulated section; One end of button extends downwards, the button other end articulates a moving part, and this moving part is swung with respect to button rotation, and the end of moving part is provided with an extension rod, this extension rod stretches into the circulating path of aforementioned box body, by the displacement of extension rod ring-type and the location of this circulating path guiding moving part;

This contact chip is a rubber-like metal lamellar body, and it forms the curved arc shape, can beat to the two side faces of contact chip lamellar body; One end fixed combination of contact chip is on a contact terminal of aforementioned box body, and the other end of contact chip is a free end; On the contact chip lamellar body, form a contact site, this contact site one end is connected in contact chip, the contact site combination is provided with first contact, the free end of contact site protrudes from the plane of contact chip lamellar body, the free end active buckle of this contact site is in an elastic component end, and the other end active buckle of this elastic component is in the contact chip lamellar body; Free end bending up or down by the aforementioned contact site of elastic component ejection is beated, and the free end of contact chip and the free end of contact site keep the state of back-flexing spring mutually, when contact chip and contact site are heated, are out of shape back-flexing respectively and bounce to the another side;

During combination, the free end of the aforementioned contact chip of an end butt that aforementioned button extends, the moving part end that button articulates is connected to the elastic component of the contact site snapping of the contact chip other end;

Be positioned at the position of circuit turn-on when button, the moving part end of this button is positioned at the elastic component right side of contact chip, and still have a segment distance between the right edge of the extension rod of moving part and the circulating path of box body, the space of one section free displacement of extension rod is provided, make the moving part end can butt and limit the elastic component of contact chip, during current overload, contact chip and contact site temperature distortion and back-flexing spring, the contact chip free end is downward, the upwards spring of contact site free end, make the free end escape of contact site, form the off-position of circuit loop;

At least two contact terminals that this box body is provided with are respectively first, second contact terminal, and the first contact terminal top fixing group of kink is established an end of contact chip, and second contact terminal top is combined with one second contact.

2. circuit-controllable protector as claimed in claim 1, wherein this circulating path is constituted by a plurality of guide pads that do not join mutually.

3. circuit-controllable protector as claimed in claim 2, wherein these a plurality of guide pads are polygonal three guide pads, are respectively the central guide pad of left side guide pad, right side guide pad, summit triangle up.

4. circuit-controllable protector as claimed in claim 1, wherein this contact chip is the composition metal thin slice.

5. circuit-controllable protector as claimed in claim 1; wherein the free end of this contact site is established a lug; with this lug active buckle in first button hole of elastic component end; the other end of elastic component is provided with second button hole, with the protrusion sheet of this second button hole active buckle in contact chip lamellar body ㄇ font fluting.

6. circuit-controllable protector as claimed in claim 1, wherein this elastic component is the lamellar body of arc.

7. circuit-controllable protector, it consists predominantly of a box body, a button, a contact chip, a moving part; It is characterized in that,

This box body is a hollow form, and its top is provided with an opening, and the bottom surface group of box body is established at least two contact terminals, and box body inside is provided with the ring-type ladder access;

Be articulated in to this button activity the opening of box body top, it is that swing in the axle center that button is able to the articulated section; One end of button extends downwards, the button other end articulates a moving part, and this moving part is swung with respect to button rotation, and the end of moving part is provided with an extension rod, this extension rod stretches into the ring-type ladder access of aforementioned box body, by the displacement of extension rod ring-type and the location of this ring-type ladder access guiding moving part;

This contact chip is a rubber-like metal lamellar body, and it forms the curved arc shape, can beat to the two side faces of contact chip lamellar body; One end fixed combination of contact chip is on a contact terminal of aforementioned box body, and the other end of contact chip is a free end; On the contact chip lamellar body, form a contact site, this contact site one end is connected in contact chip, the contact site combination is provided with first contact, the free end of contact site protrudes from the plane of contact chip lamellar body, the free end active buckle of this contact site is in an elastic component end, and the other end active buckle of this elastic component is in the contact chip lamellar body; Free end bending up or down by the aforementioned contact site of elastic component ejection is beated, and the free end of contact chip and the free end of contact site keep the state of back-flexing spring mutually, when contact chip and contact site are heated, are out of shape back-flexing respectively and bounce to the another side;

During combination, the free end of the aforementioned contact chip of an end butt that aforementioned button extends, the moving part end that button articulates is connected to the arc lateral surface of the elastic component of contact chip;

Be positioned at the position of circuit turn-on when button, the moving part end of this button is positioned at the elastic component right flank of contact chip, and still have a segment distance between the side of the ring-type ladder access of the extension rod of moving part and box body, one section free displacement space of extension rod of moving part is provided, make the moving part end can butt and limit the elastic component of contact chip, during current overload, contact chip and contact site temperature distortion and back-flexing spring, make the free end escape of contact site, form the off-position of circuit loop;

At least two contact terminals that described box body is provided with are respectively first, second contact terminal, and the first contact terminal top fixing group of kink is established an end of contact chip, and second contact terminal top is combined with one second contact.

8. circuit-controllable protector as claimed in claim 7, wherein this contact chip is the composition metal thin slice.

9. circuit-controllable protector as claimed in claim 7; wherein the free end of this contact site is established a lug; with this lug active buckle in first button hole of elastic component end; the other end of elastic component is provided with second button hole, with the protrusion sheet of this second button hole active buckle in contact chip lamellar body ㄇ font fluting.

10. circuit-controllable protector as claimed in claim 7, wherein this elastic component is the lamellar body of arc.

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