CN104756219A - Circuit breaker and method for assembling circuit breaker - Google Patents
Circuit breaker and method for assembling circuit breaker Download PDFInfo
- Publication number
- CN104756219A CN104756219A CN201380052125.2A CN201380052125A CN104756219A CN 104756219 A CN104756219 A CN 104756219A CN 201380052125 A CN201380052125 A CN 201380052125A CN 104756219 A CN104756219 A CN 104756219A
- Authority
- CN
- China
- Prior art keywords
- button
- trip
- breaker
- circuit
- close mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
- H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
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- Breakers (AREA)
Abstract
A trip button (22) is provided with a push-button part (22b) provided on the top part of a button main body (22a); a joining part (22c) that is provided on the lower part of the button main body and can be joined to a trip cross bar (21); and an axial part (wire material (26a) of a torsion spring (26)) the axial line of which extends in a direction orthogonal to the direction in which the push button part is pushed, said axial part being provided in a location between the push button part of the button main body and the joining part. Furthermore, the structure is such that when the push button part is pressed, the button main body rotates around the axial part and the joining part applies pressing force to the trip cross bar. Furthermore, an opening and closing mechanism (20) (side plate (23a)) is provided with a bearing hole (25) that supports the axial part (26a) of the trip button.
Description
Technical field
The present invention relates to the assemble method with the circuit-breaker that is object such as Inturruptor for sub-line, circuit-breaker and circuit-breaker, specifically relate to the structure of the trip button of equipping in circuit-breaker.
Background technology
In circuit-breaker, whether the trip operation existed in order to test both opens device at any time normally works, and is equipped with the device of the button of the test being called " trip button ", by from external hand push trip button, and latching device is discharged, main circuit contact is disconnected.
Fig. 5 illustrates the inside of the circuit-breaker possessing trip button.
The symbol 1 of Fig. 5 is the handle of the ON/OFF operation manually can carrying out circuit-breaker, symbol 2 is handlebars, symbol 3 links with handlebar 2, participate in the latching device of trip action, symbol 4 is linked freely to rotate by latching device 3 and elbow-bar mechanism 5, there is the movable contact of moving contact 4A, symbol 6 rotates around pin 6A, the fastening state with latching device 3 is removed by trip(ping) bar 7 when overcurrent release, elbow-bar mechanism 5 is made to carry out the cross bar of tripping action, symbol 8 is opening and closing springs, symbol 9 is by the electromagnetic attracting force produced in electromagnetic trip portion 10 when overcurrent occurs, make the armature that cross bar 6 rotates to the direction of arrow.In addition, symbol 11 is the fixed contacts with fixed contact 11A.
Further, in framework 12, trip button 13 is provided with.Press this trip button 13 by the elastic force resisting wind spring 14, remove latching device 3 and the fastening state of trip(ping) bar 7 thus, make movable contact 4 carry out disconnection action, whether normally do not test trip action with in fact flowing through overcurrent.
Prior art document
Patent documentation
Patent documentation 1: Japanese Patent Publication 3-20854 publication (Fig. 1)
Summary of the invention
But, the circuit-breaker of above-mentioned patent documentation 1, the block (not shown) depressed position limiting trip button 13 in the direction of pressing trip button 13 is formed highlightedly from the inwall of framework 12, with the spring guide portion 15 of the tubular of maintenance wind spring 14, need to consider the size of these blocks (limiting section), spring guide portion 15, the stroke of trip button 13, and the internal volume of framework 12 is designed to comparatively large, have problems in miniaturized.
In addition, because arrange block and spring guide portion 15 etc. at the inwall of framework 12, the shape of framework 12 becomes complicated, has problems in manufacturing cost.
In addition, framework 12 is formed by linking multiple dividing body with link screw, but because link the impact of the fastening force of screw, there is framework 12 is out of shape, and the deformation effect of this framework 12, to spring guide portion 15, damages the possibility of the Reliability of Microprocessor of trip button 13.
So, the object of the present invention is to provide the assemble method of a kind of circuit-breaker and circuit-breaker, even if having trip button, also can realize manufacturing cost and reduce, realize miniaturization simultaneously.
For solving the means of problem
In order to reach above-mentioned purpose, the circuit-breaker of a mode of the present invention, it is equipped with in the inside of framework: the fixed contact being provided with fixed contact; Be provided with the movable contact of the moving contact contacted with above-mentioned fixed contact; The open-close mechanism section be connected with this movable contact; Above-mentioned open-close mechanism section is made to carry out the tripping operation cross bar of trip operation with by being subject to push action, trip button is arranged at the outer surface of above-mentioned framework, carry out push action by the action of pressing of this trip button to above-mentioned tripping operation cross bar, above-mentioned trip button comprises: the button portion being arranged on the top of button body; Be arranged on the holding section that can engage with above-mentioned tripping operation cross bar of above-mentioned button body; And the above-mentioned button portion of above-mentioned button body with the position between above-mentioned holding section and be arranged to axis with above-mentioned button portion press the axle portion that orthogonal direction, direction extends, be configured to make above-mentioned button body make above-mentioned holding section to the structure of above-mentioned tripping operation cross bar applied thrust around the rotation of above-mentioned axle portion by pressing above-mentioned button portion, above-mentioned open-close mechanism section has the dead eye in the axle portion of supporting above-mentioned trip button.
According to the circuit-breaker of a mode of the present invention, not as existing apparatus, in framework, form the parts keeping trip button, and framework can be made to become simple structure, reduce so manufacturing cost can be realized.In addition, link the framework of multiple dividing body with link screw, even if be out of shape because of the impact of the fastening force of link screw etc., trip button of the present invention and framework do not link, and Reliability of Microprocessor also can not reduce.
In addition, the circuit-breaker of a mode of the present invention, the axle portion of above-mentioned trip button is the spring members that freely can carry out strain, and when by pressing above-mentioned button portion and making above-mentioned button body there occurs rotation, restitutive force plays the effect making above-mentioned button body return-to-home position.
According to the circuit-breaker of a mode of the present invention, the effect of back-moving spring is also played in the axle portion of above-mentioned trip button, reduces so can realize components number.
In addition, the circuit-breaker of a mode of the present invention, the axle portion of above-mentioned trip button is the torsion spring with a pair wire rod be parallel to each other bending to roughly U-shape, the wire rod of one side of this torsion spring is locked in a part for above-mentioned open-close mechanism section, and the wire rod of the opposing party is inserted in the above-mentioned dead eye of above-mentioned open-close mechanism section.
According to the circuit-breaker of a mode of the present invention, torsion spring can support trip button, applies restitutive force simultaneously.
On the other hand, the assemble method of the circuit breaker of a mode of the present invention, in foregoing circuit circuit breaker, is equipped with in the inside of framework: the fixed contact being provided with fixed contact, be provided with the movable contact of the moving contact contacted with above-mentioned fixed contact, the open-close mechanism section be connected with this movable contact, above-mentioned open-close mechanism section is made to carry out the tripping operation cross bar of trip operation with by being subject to push action, trip button is arranged at the outer surface of above-mentioned framework, by the action of pressing of this trip button, push action is carried out to above-mentioned tripping operation cross bar, the assemble method of foregoing circuit circuit breaker is used for above-mentioned trip button to be assembled into above-mentioned open-close mechanism section, and above-mentioned trip button comprises: the button portion being arranged on the top of button body, be arranged on the holding section that can engage with above-mentioned tripping operation cross bar of above-mentioned button body, and the above-mentioned button portion of above-mentioned button body with the position between above-mentioned holding section and be arranged to axis with above-mentioned button portion press the shaft insertion hole that orthogonal direction, direction extends, above-mentioned open-close mechanism section comprises pair of side plates and is positioned at the top board on top of this pair of side plates, have at the through dead eye of plate thickness direction at the side plate of a side, above-mentioned trip button is configured in the mode that above-mentioned shaft insertion hole is corresponding with the above-mentioned dead eye of above-mentioned side plate, afterwards, the torsion spring with a pair wire rod be parallel to each other of roughly U-shape will be bent to, a part for above-mentioned top board is locked on and the mode that the wire rod of the opposing party is inserted in the above-mentioned dead eye of above-mentioned side plate and the above-mentioned shaft insertion hole of above-mentioned trip button is installed with the wire rod of a side.
According to the assemble method of the circuit-breaker of a mode of the present invention, the instrument ground such as screwdriver can not be used, use the torsion spring of roughly U-shaped that trip button is assembled into open-close mechanism section simply.
Invention effect
The assemble method of circuit breaker and circuit breaker in a circuit according to the invention, can realize manufacturing cost reduction, components number minimizing, realize miniaturization simultaneously.
Accompanying drawing explanation
Fig. 1 is the stereogram of the major part of the open-close mechanism section representing circuit-breaker of the present invention.
Fig. 2 is the side view of the major part of the open-close mechanism section representing circuit-breaker of the present invention.
Fig. 3 represents assembling flow path trip button being assembled into open-close mechanism section.
Fig. 4 represents the structure of trip button and presses the figure of action.
Fig. 5 is the sectional view representing the existing circuit-breaker possessing trip button.
Embodiment
Describe in detail for implementing mode of the present invention (hereinafter referred to as execution mode) below with reference to accompanying drawing.Wherein, for the structure division identical with the structure shown in Fig. 5, additional identical symbol also omits the description.
Fig. 1 is the stereogram of the major part representing three pole distribution circuit-breakers of the present invention, illustrates open-close mechanism section 20, tripping operation cross bar 21 and the trip button 22 of carrying in framework 12 inside.In addition, Fig. 2 is that the figure of the major part illustrating Fig. 1 from the side, Fig. 3 illustrate the assembling of trip button 22 to open-close mechanism section 20, and Fig. 4 represents the structure of trip button 22 and presses the figure of action.
As shown in Figure 1, open-close mechanism section 20 comprises latching device (latch gear) 3 and the elbow-bar mechanism 5 (with reference to figure 5) of the participation trip action linked with handlebar 2, around this open-close mechanism section 20, be configured with the pair of side plates 23a, the 23b that configure in parallel to each other, and the top board 24 linked with the top of this pair of side plates 23a, 23b.
Peristome 24a is formed at top board 24.This peristome 24a comprises: the long peristome extended to pair of side plates 23a, 23b; And with the side plate 23a side of this long peristome continuously with the short peristome that the mode forming L-shaped extends.
Further, the side plate 23a near the short peristome of the peristome 24a of top board 24, has been formed through dead eye 25 in a thickness direction.
Tripping operation cross bar 21 is the parts being formed with trip portion 21b at 3 places of the length direction of bar main body 21a, and as shown in Figure 1, axle portion is can the around hole 23c mode of freely rotating be supported between pair of side plates 23a, 23b.In addition, in Fig. 2, symbol 21c represents the position in the axle portion of above-mentioned tripping operation cross bar 21.
Trip button 22 as shown in Figure 3, be possess button body 22a, the parts of the shaft insertion hole 22d of the button portion 22b arranged at the top of button body 22a, the engaging protuberance 22c arranged in the bottom of button body 22a and the through in a thickness direction setting between button portion 22b and engaging protuberance 22c.
Further, trip button 22 as shown in Figure 1, is configured in the lower surface side of top board 24, makes shaft insertion hole 22d corresponding with the dead eye 25 of side plate 23a, torsion spring 26 is inserted this dead eye 25 and shaft insertion hole 22d.
Torsion spring 26 as shown in Figure 3, is the elastomeric element possessing a pair wire rod 26a, the 26b be parallel to each other being bent into roughly U-shaped.
The wire rod 26a of one side of this torsion spring 26 inserts the parts in dead eye 25 and shaft insertion hole 22d, and as shown in Figure 1, the opening edge portion along peristome 24a extends the wire rod 26b of the opposing party, and its end 26b1 engages with the upper surface hook of top board 24.
Like this, the trip button 22 of open-close mechanism section 20 (side plate 23a and top board 24) is supported in by torsion spring 26, as shown in Fig. 4 (a), be configured in framework 12 from the externally outstanding and state engaging protuberance 22c relative with the trip portion 21b of the cross bar 21 that trips of the button hole 12a arranged in framework 12 with button portion 22b.
As shown in Fig. 4 (a), observe from the side, engaging protuberance 22c is positioned at below relative to shaft insertion hole 22d, button portion 22b is positioned at top relative to shaft insertion hole 22d, and be configured with the trip button 22 of engaging protuberance 22c and button portion 22b in left and right relative to shaft insertion hole 22d, to button portion 22b apply downwards by when exerting oneself, be transformed to the rotation of the button body 22a centered by shaft insertion hole 22d.
Then, as shown in Fig. 4 (b), button portion 22b is applied by when exerting oneself, in torsion spring 26, insert the side in dead eye 25 and shaft insertion hole 22d wire rod 26a and extend along the opening edge portion of peristome 24a, mode that interval that the wire rod 26b of the opposing party that the upper surface hook of end 26b1 and top board 24 engages is mutual is expanded with Eight characters shape carries out torsional deflection.Now, button body 22a moves downward side and rotates centered by shaft insertion hole 22d simultaneously, and the trip portion 21b of engaging protuberance 22c to tripping operation cross bar 21 applies pushing force.Thus, tripping operation cross bar 21 rotates to the direction of arrow centered by axle 21c, thus makes movable contact 4 carry out disconnection action by the latching device 3 of open-close mechanism section 20 and elbow-bar mechanism 5.
Herein, disengage button portion 22 by when exerting oneself, the torsion spring 26 couples of button body 22a carrying out torsional deflection apply to make a pair wire rod 26a, 26b to recover the restitutive force (restitutive force shown in the direction of arrow of symbol S) of the original shape be parallel to each other.The trip button 22 being applied with the restitutive force S of this torsion spring 26 moves to the script position of Fig. 4 (a).
In addition, holding section of the present invention corresponds to engaging protuberance 22c, and axle portion of the present invention corresponds to torsion spring 26 and wire rod 26a.
Then, in the circuit-breaker of present embodiment, the flow process of trip button 22 assembled by the side plate 23a configured around open-close mechanism section 20 and top board 24, is described with reference to figure 3.
First, as shown in the arrow A of Fig. 3, below side plate 24, side makes trip button 22 rise, and trip button 22 is moved until the top of button body 22a is positioned at the peristome 24a of top board 24.
Then, make the shaft insertion hole 22d of trip button 22 corresponding with the dead eye 25 of side plate 23a.
Then, as shown in the arrow B of Fig. 3, torsion spring 26 is moved to the top of side plate 23a, the wire rod 26a of a side is made to insert in dead eye 25 and shaft insertion hole 22d, the wire rod 26b of the opposing party is extended along the opening edge portion of peristome 24a, its end 26b1 is engaged with the upper surface hook of top board 24.
Thus, the assembling of trip button 22 to side plate 23a and top board 24 is completed.
Then, the action effect of the circuit-breaker of present embodiment is described.
In the circuit-breaker of present embodiment, the parts of supporting trip button 22 are side plate 23a, 23b and the top board 24 of open-close mechanism section 20, not as existing apparatus, in framework 12, form the parts keeping trip button, framework 12 can be made to become simple structure, reduce so manufacturing cost can be realized.
In addition, even if the framework 12 that multiple dividing body is linked by link screw is out of shape because linking the impact of the fastening force of screw etc., trip button 22 and the framework 12 of present embodiment do not link, but be opened and closed side plate 23a, 23b of mechanism part 20 and top board 24 supports, so Reliability of Microprocessor also can not reduce.
In addition, trip button 22 is the mechanisms rotated centered by the shaft insertion hole 22d arranged in the substantial middle of button body 22a, and the operational stroke of trip button 22 is little, so can the miniaturization of realizing circuit circuit breaker.
In addition, parts trip button 22 being bearing in rotatably side plate 23a and top board 24 are torsion springs 26, the trip button 22 that this torsion spring 26 is applied for making to press returns the restitutive force S of position originally, achieve the supporting function of trip button 22 and the function as back-moving spring parts, so can suppression component number increase.
And then, in order to trip button 22 being assembled in side plate 23a and the top board 24 of open-close mechanism section 20, side configuration trip button 22 below top board 24, then, make the shaft insertion hole 22d of trip button 22 corresponding with the dead eye 25 of side plate 23a, then, the wire rod 26a of a side of the torsion spring 26 of roughly U-shaped is made to insert in dead eye 25 and shaft insertion hole 22d, the wire rod 26b of the opposing party of torsion spring 26 is extended along the opening edge portion of peristome 24a, its end 26b1 is engaged with the upper surface hook of top board 24, and the assembling of trip button 22 completes thus.Like this, use the torsion spring 26 of roughly U-shaped that trip button 22 is assembled in side plate 23a and top board 24 simply while the instruments such as screwdriver can not be used.
Industry utilizes possibility
As mentioned above, the assemble method of circuit-breaker of the present invention and circuit-breaker, even if for possess trip button also can realize manufacturing cost reduce simultaneously realize miniaturization be useful.
Symbol description
1 ... handle, 2 ... handlebar, 3 ... latching device, 4 ... movable contact, 5 ... elbow-bar mechanism, 12 ... framework, 12a ... button hole, 20 ... open-close mechanism section, 21 ... tripping operation cross bar, 21a ... bar main body, 21b ... trip portion, 21c ... axle, 22 ... trip button, 22a ... button body, 22b ... button portion, 22c ... engaging protuberance, 22d ... shaft insertion hole, 23a, 23b ... side plate, 24 ... top board, 24a ... peristome, 25 ... dead eye, 26 ... torsion spring, 26a, 26b ... wire rod, 26b1 ... the end of wire rod.
Claims (4)
1. a circuit-breaker, it is equipped with in the inside of framework: the fixed contact being provided with fixed contact; Be provided with the movable contact of the moving contact contacted with described fixed contact; The open-close mechanism section be connected with this movable contact; Described open-close mechanism section is made to carry out the tripping operation cross bar of trip operation with by being subject to push action, trip button is arranged at the outer surface of described framework, carry out push action by the action of pressing of this trip button to described tripping operation cross bar, the feature of described circuit-breaker is:
Described trip button comprises: the button portion being arranged on the top of button body; Be arranged on the holding section that can engage with described tripping operation cross bar of described button body; And the described button portion of described button body with the position between described holding section and be arranged to axis with described button portion press the axle portion that orthogonal direction, direction extends, be configured to make described button body make described holding section to the structure of described tripping operation cross bar applied thrust around the rotation of described axle portion by pressing described button portion
Described open-close mechanism section has the dead eye in the axle portion of supporting described trip button.
2. circuit-breaker as claimed in claim 1, is characterized in that:
The axle portion of described trip button is the spring members that freely can carry out strain, and when by pressing described button portion and making described button body there occurs rotation, restitutive force plays the effect making described button body return-to-home position.
3. circuit-breaker as claimed in claim 1, is characterized in that:
The axle portion of described trip button is the torsion spring with a pair wire rod be parallel to each other bending to roughly U-shape, the wire rod of one side of this torsion spring is locked in a part for described open-close mechanism section, and the wire rod of the opposing party is inserted in the described dead eye of described open-close mechanism section.
4. an assemble method for circuit-breaker, in described circuit-breaker, is equipped with in the inside of framework: the fixed contact being provided with fixed contact; Be provided with the movable contact of the moving contact contacted with described fixed contact; The open-close mechanism section be connected with this movable contact; Described open-close mechanism section is made to carry out the tripping operation cross bar of trip operation with by being subject to push action, trip button is arranged at the outer surface of described framework, by the action of pressing of this trip button, push action is carried out to described tripping operation cross bar, the assemble method of described circuit-breaker is used for described trip button to be assembled into described open-close mechanism section, and the feature of this assemble method is:
Described trip button comprises: the button portion being arranged on the top of button body; Be arranged on the holding section that can engage with described tripping operation cross bar of described button body; And the described button portion of described button body with the position between described holding section and be arranged to axis with described button portion press the shaft insertion hole that orthogonal direction, direction extends,
Described open-close mechanism section comprises pair of side plates and is positioned at the top board on top of this pair of side plates, has at the through dead eye of plate thickness direction at the side plate of a side,
Described trip button is configured in the mode that described shaft insertion hole is corresponding with the described dead eye of described side plate, afterwards,
To the torsion spring with a pair wire rod be parallel to each other of roughly U-shape be bent to, be locked on a part for described top board with the wire rod of a side and the mode that the wire rod of the opposing party is inserted in the described dead eye of described side plate and the described shaft insertion hole of described trip button is installed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013026627A JP6020236B2 (en) | 2013-02-14 | 2013-02-14 | Circuit breaker and circuit breaker assembly method |
| JP2013-026627 | 2013-02-14 | ||
| PCT/JP2013/007592 WO2014125549A1 (en) | 2013-02-14 | 2013-12-25 | Circuit breaker and method for assembling circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104756219A true CN104756219A (en) | 2015-07-01 |
| CN104756219B CN104756219B (en) | 2017-03-01 |
Family
ID=51353585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380052125.2A Active CN104756219B (en) | 2013-02-14 | 2013-12-25 | Circuit-breaker and the assemble method of circuit-breaker |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6020236B2 (en) |
| CN (1) | CN104756219B (en) |
| WO (1) | WO2014125549A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102275002B1 (en) * | 2019-11-12 | 2021-07-08 | 엘에스일렉트릭(주) | Trip Assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61153944U (en) * | 1985-03-18 | 1986-09-24 | ||
| JP2001325873A (en) * | 2000-05-16 | 2001-11-22 | Kawamura Electric Inc | Test button for ground-fault circuit interrupter |
| KR100451770B1 (en) * | 2002-04-01 | 2004-10-08 | 엘지산전 주식회사 | molded case circuit breaker |
| CN102194619B (en) * | 2010-03-16 | 2014-08-13 | 施耐德电器工业公司 | Test device for circuit breaker and circuit breaker with test device |
| CN201673872U (en) * | 2010-05-13 | 2010-12-15 | 上海华联低压电器有限公司 | Plastic casing type low voltage circuit breaker |
-
2013
- 2013-02-14 JP JP2013026627A patent/JP6020236B2/en active Active
- 2013-12-25 CN CN201380052125.2A patent/CN104756219B/en active Active
- 2013-12-25 WO PCT/JP2013/007592 patent/WO2014125549A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014157665A (en) | 2014-08-28 |
| CN104756219B (en) | 2017-03-01 |
| JP6020236B2 (en) | 2016-11-02 |
| WO2014125549A1 (en) | 2014-08-21 |
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Address after: Saitama Prefecture, Japan Patentee after: FUJI ELECTRIC FA COMPONENTS & SYSTEMS Co.,Ltd. Address before: Tokyo, Japan Patentee before: FUJI ELECTRIC FA COMPONENTS & SYSTEMS Co.,Ltd. |
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