CN100419935C

CN100419935C - Circuit control protector

Info

Publication number: CN100419935C
Application number: CNB2005100749406A
Authority: CN
Inventors: 游聪谋
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-06
Filing date: 2005-06-06
Publication date: 2008-09-17
Anticipated expiration: 2025-06-06
Also published as: CN1877772A

Abstract

The present invention relates to a circuit control protector which is provided with a buckle-connecting hole on a button. The buckle-connecting hole is provided with an extending groove. One end of a linking rod is movably inserted in the buckle-connecting hole of the button, and the end part of the linking rod is movably connected with a contact sheet. The linking rod simultaneously moves by pressing the button to swing, pushes and pulls the contact sheet to jump so that a circuit forms a power on or a power off state. When the button is positioned at the position of powering on the circuit, the extending groove of the buckle-connecting hole provides space for the end part of the linking rod to freely move. When current is overloaded and the contact sheet is heated and deformed to reversely bounce, the linking rod is driven to move by the contact sheet, and the end part of the linking rod moves freely in the extending groove and is free from the prevention of the button so that the contact sheet is smoothly escaped, and the circuit freely bounces and is powered off. The safety of power use is ensured.

Description

Circuit-controllable protector

Technical field

The present invention relates to a kind of circuit-controllable protector, it is between button and interlock rod member, is provided with one and extends groove, and the space of a free displacement of interlock rod member is provided; When current overload, the contact chip temperature distortion is oppositely bounced, and contact chip promotes this interlock rod member displacement, and the end of this interlock rod member is able to free displacement in extension groove, not interrupted, contact chip is able to escape successfully, the free escape outage (OFF) of circuit loop when guaranteeing current overload.

Background technology

The operation of power control switch mainly is to carry out energising (ON) and outage (OFF) two kinds of course of action 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 utility power control switchs 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 ... etc. 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 action relationships between button and terminal assembly, has also improved manufacturing cost.

2) action relationships is uncertain, increases the fault chance, is unfavorable for that the consumer uses and the safety 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 that the assembly that solves known various power control switch serial verb constructions is complicated, cost of manufacture is high, continuous action relation for indirectly, the reaction of interlock stroke reaches power control switch many shortcomings of fault in operation slowly, 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 technological means of dealing with problems:

A kind of circuit-controllable protector of the present invention consists predominantly of a box body, a button, a contact chip, an interlock rod member; Wherein, this box body group is established a button, this button is provided with the snapping hole, this snapping hole is provided with the extension groove, the end activity embedding group of one interlock rod member is in the snapping hole of button, the other end of this interlock rod member is movably connected on contact chip, and when this button was positioned at the position of circuit turn-on (ON), the extension groove in snapping hole provided the space of the free displacement in end of this interlock rod member; During current overload, when the contact chip temperature distortion was oppositely bounced, contact chip promoted this interlock rod member displacement, and the end of this interlock rod member is able to free displacement in extension groove, be not subjected to the obstruction of button, contact chip is able to escape successfully, forms the outage fully (OFF) of circuit loop.

The effect of technological means of the present invention:

A kind of circuit-controllable protector of the present invention; its main purpose is; by this button snapping hole the extension groove is set; the extension groove in this snapping hole provides the space of a free displacement of interlock Rod end; when current overload; the contact chip temperature distortion is oppositely bounced and is promoted the displacement of interlock rod member; the end of this interlock rod member is able to free displacement in extension groove; be not subjected to the obstruction in button and snapping hole; contact chip gets in real time, escape fully successfully; form the outage fully (OFF) of circuit loop, reach aim of safe power utilization.

A further object of the present invention is, when the current overload circuit was overheated, contact flat spring reacted escape rapidly, and was 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.

Extension purpose 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 back-flexing escape promotes the free displacement of interlock rod member, becomes the state of outage (OFF);

Fig. 4 is the three-dimensional exploded view of the embodiment of the invention, the relative assembled state that it shows snapping hole, extend groove and interlock rod member;

Fig. 5 is the partial enlarged drawing of Fig. 1, and it shows the snapping hole, extends the relative position of groove and interlock rod member;

Fig. 6 is the partial enlarged drawing of Fig. 2, and it shows the snapping hole, extends the relative position of groove and interlock rod member;

Fig. 7 is the partial enlarged drawing of Fig. 3, and it shows the snapping hole, extends the relative position of groove and interlock rod member.

Among the figure

1 box body, 11 first contact terminals

12 second contact terminals, 121 second contacts

13 contact sites, 2 buttons

21 stretch portion 22 snapping holes

23 extend groove 3 contact chips

30 31 first contacts

32 arc spring laminations, 321 button holes

322 grooves 33 are adjusted screw

331 scrobicular ring necks, 4 interlock rod members

41 cross bars, 42 clip slots

43 extensions (wing plate)

Embodiment

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

As Figure 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, an interlock rod member 4; 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 the fixing group of first,

second contact terminal

11,12, the first contact terminals 11 top kinks and establish an end of contact chip 3, second contact terminal, 12 tops are combined with one second contact 121, establish a contact site 13 in box body 1 inside in addition, this contact site 13 is the plate of a projection.

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; An extension 21 is established in the below of button 2, and this extension 21 is provided with a snapping hole 22, and this snapping hole 22 stretches out to be provided with and extends groove 23.

This contact chip 3 generally is a rubber-like metal lamellar body, and it forms the curved arc shape, can beat distortion back-flexing and bounce to another side when contact chip 3 is heated to the two side faces of lamellar body; One end of contact chip 3 fixedly is mounted on first contact terminal 11, and the other end is a free end, which is provided with first contact 31; This contact chip 3 also can be the composition metal thin slice; Consult Fig. 4 and Fig. 1-3 in addition again, the button hole 321 of the free-ended lug 30 active buckles-arc spring lamination 32 of embodiment of the invention contact chip 3, the other end of this arc spring lamination 32 is with the ring recessed neck 331 of a groove 322 activity embedding groups in an

adjustment screw

33,33 groups of recessed necks 331 of ring in box body 1 and adjustment screw 33 of this adjustment screw are exposed to box body 1 inside, by adjusting this adjustment screw 33 displacements, make arc spring lamination 32 have suitable elastic force, when contact chip 3 when bounce in a side, be able to really crooked and location.

This interlock rod member 4 is a rectangular en plaque, a cross bar 41 is established in the one end, the other end is established a clip slot 42, and the rectangular plate side of interlock rod member 4 links the extension 43 that at least one protrusion is set, and this extension 43 is the wing plate that oblique bending is protruded in the present embodiment; In the snapping hole 22 of button 2, the clip slot 42 activity clampings of interlock rod member 4 other ends are connected in the free end of contact chip 3, with reference to figure 4 with the cross bar 41 activity embedding groups of interlock rod member 4.

The present invention please refer to Fig. 1 in general energising (ON) enforcement with outage (OFF), when the right-hand member of pressing button 2 downward, these button 2 left ends upwards, interlock rod member 4 is pulled upwardly contact chip 3, and first contact 31 on the contact chip 3 is separated with second contact 121, becomes outage (OFF) state.

Downward when the left end of pressing button 2, interlock rod member 4 is passed contact chip 3 downwards, and first contact 31 on the contact chip 3 is contacted with second contact 121 downwards, becomes energising (ON) state, as Fig. 2.

Pressing button 2 swings so repeatedly make interlock rod member 4 and button 2 synchronization actions, and the 3 upper and lower bendings of interlock rod member 4 push-and-pull contact chips are beated, and make circuit loop form energising (ON) or outage (OFF) state.

The invention is characterized in: the snapping hole 22 of this button 2 is provided with extends groove 23, the cross bar 41 activity embedding groups of interlock rod member 4 ends are in the snapping hole 22 of button 2, the clip slot 42 activity clampings of interlock rod member 4 other ends are connected in contact chip 3, and interlock rod member 4 sides are provided with the extension 43 (wing plate of oblique bending) of protrusion; When button 2 is positioned at the position of circuit turn-on (ON), the extension groove 23 in snapping hole 22 provides the space of 41 1 free displacements of cross bar of interlock rod member 4 ends, at this moment, be resisted against contact site 13 end faces of box body 1 with the extension 43 (wing plate) of interlock rod member 4 sides, guarantee the extension groove 23 direction displacements of cross bar 41 maintenances of these interlock rod member 4 ends, with reference to figure 2, Fig. 6 to snapping hole 22; When current overload, contact chip 3 temperature distortions are oppositely bounced, contact chip 3 directly promotes these interlock rod member 4 displacements, and the cross bar 41 of these interlock rod member 4 ends is able to free displacement in extending groove 23, as Fig. 3, shown in Figure 7, be not subjected to the obstruction of snapping hole 22 or button 2, contact chip 3 is able to escape successfully, forms outage fully (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 start, contact chip 3 is able to escape successfully, forms outage fully (OFF) state of circuit loop, really can reach the fail safe of electricity consumption.

From the above mentioned, assembly structure of the present invention, action relationships, certain tool practical effect, and be new design not seen before, creative and practicality, so met the important document of Patent Law about inventing, so in accordance with the law the mere formality application it.For this reason, ask your auditor to know clearly and give examination, and pray and grant quasi patent early, to feeling moral just.

Below the present invention has been done a detailed description, only above-described, only be 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

1. a circuit-controllable protector is characterized in that, it includes a box body, a button, a contact chip, an interlock rod member; Wherein,

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, establishes a contact site in the box body;

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; Button is provided with a snapping hole, and this snapping hole is provided with the extension groove;

This contact chip is a rubber-like metal lamellar body, and it forms the curved arc shape, can beat distortion back-flexing and bounce to another side when contact chip is heated to the two side faces of lamellar body; One end of contact chip fixedly is mounted on the contact terminal, and the other end is provided with first contact;

One end activity embedding group of this interlock rod member is in the snapping hole of button, and other end activity clamping is connected in contact chip, and the side of interlock rod member links the extension that at least one protrusion is set;

When circuit turn-on, the extension groove in the snapping hole of button is corresponding to the end of interlock rod member, this extension groove provides the space of the free displacement in end of interlock rod member, simultaneously, the extension of interlock rod member side is resisted against the contact site end face of box body, guarantees that this interlock Rod end keeps the extension groove direction displacement to the snapping hole; When current overload, the contact chip temperature distortion is oppositely bounced, contact chip directly promotes this interlock rod member displacement, and this interlock rod member embedding group is able to extending free displacement in the groove in the end in the snapping hole of button, be not subjected to the obstruction of button, contact chip is able to escape successfully, forms the off-position of circuit loop.

2. circuit-controllable protector as claimed in claim 1; at least two contact terminals being provided with of this box body wherein; be respectively first, second contact terminal, 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.

3. circuit-controllable protector as claimed in claim 1, wherein extension is established in the below of this button, and the extension of this button below is provided with the snapping hole.

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 a cross bar is established in the end of this interlock rod member, and a clip slot is established in the other end;

The cross bar activity embedding group of this interlock Rod end is in the snapping hole of button, and the clip slot activity clamping of the other end is connected in the free end of contact chip.

6. circuit-controllable protector as claimed in claim 1, wherein this extension is the wing plate that oblique bending is protruded.