CN101714485A - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN101714485A CN101714485A CN 200910008732 CN200910008732A CN101714485A CN 101714485 A CN101714485 A CN 101714485A CN 200910008732 CN200910008732 CN 200910008732 CN 200910008732 A CN200910008732 A CN 200910008732A CN 101714485 A CN101714485 A CN 101714485A
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- trip
- bar
- ping
- circuit
- switching mechanism
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Abstract
The invention provides a circuit breaker, which can inhibit height, direction and size of the circuit breaker. The circuit breaker is provided with the following components: a handle arm (1), which can shaft support a fixed part in a rotating way, and operates through a handle (2); a elbow linkage mechanism, which is provided with a first linkage rod (4) and a second linkage rod (5) that linked and can rotate around the shaft mutually, and a switch spring (3) is arranged between the linking part and the handle arm; a cross rod (9) that links with the second linkage rod by a cross rod pin (12), and rotates through actions of the elbow bar linkage; a mobile contact member (10) with one end provided with a mobile contact point and the other end shaft supported on the cross rod in a rotating way, and links with the rotate of the cross rod; and a fixed contact member (11) provided with a fixed contact point that contact with or separated from the mobile contact point, a switch spring hitch part (1c) of the handle arm and a linking part (1b) of the handle are in separated location.
Description
Technical field
The present invention relates to a kind of switching mechanism portion of circuit-breaker, particularly the structure of trip(ping) bar.
Background technology
In existing circuit-breaker, shown in the known for example patent documentation 1, remain on the trip(ping) bar on the framework of switching mechanism portion free to rotately, on rotary shaft, have minor diameter part and large-diameter portion, when on framework, installing, after the notch of minor diameter part and framework is chimeric, rotary shaft slided vertically and the axis hole of large-diameter portion and framework is chimeric, thereby keep.
Patent documentation 1: the spy opens clear 62-177825 communique, accompanying drawing 1
Summary of the invention
In the existing trip(ping) bar of formation as noted above, and the chimeric rotating shaft of the axis hole of framework extends between the framework of the left and right sides, abutment portion with the lock part butt is set on this extending part, detect in size electric current, flow through under the situation of overload current, tripgear rotates trip(ping) bar, by making the lock part action with the trip(ping) bar butt, thereby makes switching mechanism portion action (tripping operation).Therefore for (following also abbreviate as " component parts ") such as the component parts handle arm that constitutes switching mechanism portion and move when the switch motion and main springs can not interfered with the rotating shaft of trip(ping) bar, need carry out component configuration in the mode that rotating shaft of trip(ping) bar is not configured on the component parts movement locus, thereby have the problem that can't make the miniaturization of switching mechanism portion.
The present invention proposes in order to address the above problem, its purpose is to obtain a kind of circuit-breaker, on its movement locus, and make switching mechanism portion be able to miniaturization by the component parts of the switching mechanism portion that the rotating shaft of trip(ping) bar can be configured in handle arm and main spring etc. and move when the switching manipulation.
Circuit-breaker of the present invention, size of current is detected, flowing through under the situation of overload current, tripgear rotates trip(ping) bar, by making and the action of the lock part of trip(ping) bar butt, thereby make switching mechanism portion action (tripping operation), this circuit-breaker constitutes, and described trip(ping) bar has: carry out the abutting part of butt with described tripgear; And paired jut, it disposes relatively across the regulation space each other, one end of this jut and this abutting part link, outstanding to the direction vertical with this abutting part, side at described paired jut forms rotary shaft respectively, it is mounted in the axis hole of institutional framework of switching mechanism portion, rotation to trip(ping) bar is supported, and the front end at a jut forms the abutting part that the lock part that rotates with the limit trip bar carries out butt at least, in the space recess that described paired jut forms, movement locus when existing the component parts of switching mechanism portion to carry out switching manipulation, the rotary shaft of described trip(ping) bar is configured on this movement locus.
The effect of invention
Circuit breaker in a circuit according to the invention, because the movement locus of the component parts of the switching mechanism portion that handle arm and main spring etc. move when switching manipulation is present in the space recess that is formed by paired jut, thereby can on its movement locus, dispose the rotary shaft of trip(ping) bar, therefore can obtain circuit-breaker the miniaturization of switching mechanism portion.
Above-mentioned and other purpose of the present invention, feature, effect can be clearer and more definite according to the record of detailed description in the following execution mode and accompanying drawing.
Description of drawings
Fig. 1 is the outward appearance oblique view of the circuit-breaker in the embodiments of the present invention 1.
To be the circuit-breaker of expression in the embodiments of the present invention 1 taking off the switching mechanism portion under the state of housing and the oblique view of tripgear to Fig. 2.
Fig. 3 is the switching mechanism portion of circuit-breaker under on-state and the perspective oblique view of tripgear in the expression embodiments of the present invention 1.
Fig. 4 is the switching mechanism portion of circuit-breaker under tripped condition and the perspective oblique view of tripgear in the expression embodiments of the present invention 1.
Fig. 5 is the oblique view of the switching mechanism portion of circuit-breaker under on-state in the expression embodiments of the present invention 1.
Fig. 6 is the sectional side view of the switching mechanism portion of circuit-breaker under on-state in the expression embodiments of the present invention 1.
Fig. 7 is the oblique view of the switching mechanism portion of circuit-breaker under off-state in the expression embodiments of the present invention 1.
Fig. 8 is the sectional side view of the switching mechanism portion of circuit-breaker under off-state in the expression embodiments of the present invention 1.
Fig. 9 is the oblique view of the switching mechanism portion of circuit-breaker under tripped condition in the expression embodiments of the present invention 1.
Figure 10 is the sectional side view of the switching mechanism portion of circuit-breaker under tripped condition in the expression embodiments of the present invention 1.
Figure 11 is the oblique view of the trip(ping) bar of the circuit-breaker in the expression embodiments of the present invention 1.
Figure 12 is the trip(ping) bar of circuit-breaker under on-state and the oblique view of lock part in the expression embodiments of the present invention 1.
Figure 13 is the trip(ping) bar of circuit-breaker under on-state and the sectional side view of lock part in the expression embodiments of the present invention 1.
Figure 14 is the trip(ping) bar of circuit-breaker under tripped condition and the oblique view of lock part in the expression embodiments of the present invention 1.
Figure 15 is the trip(ping) bar of circuit-breaker under tripped condition and the sectional side view of lock part in the expression embodiments of the present invention 1.
Figure 16 is under the state that is illustrated on the movement locus that the trip(ping) bar rotating shaft is positioned at main spring and handle arm, the oblique view of the switching mechanism portion of the circuit-breaker in the embodiments of the present invention 1.
Figure 17 is under the state that is illustrated on the movement locus that the trip(ping) bar rotating shaft is positioned at main spring and handle arm, the sectional side view of the switching mechanism portion of the circuit-breaker in the embodiments of the present invention 1.
Figure 18 be the circuit-breaker of expression in the embodiments of the present invention 2 along the trip(ping) bar of the X-X line of Figure 10 and the profile of framework.
Figure 19 is the oblique view of the trip(ping) bar of the circuit-breaker in the expression embodiments of the present invention 3.
Figure 20 is the exploded perspective view of the switching mechanism portion that makes the trip(ping) bar insertion of the circuit-breaker in the expression embodiments of the present invention 3.
Figure 21 be the circuit-breaker of expression in the embodiments of the present invention 3 along the trip(ping) bar of the X-X line of Figure 10 and the profile of framework.
Figure 22 is the exploded perspective view of the switching mechanism portion that makes the trip(ping) bar insertion of the circuit-breaker in the expression embodiments of the present invention 4.
Figure 23 be the circuit-breaker of expression in the embodiments of the present invention 4 along the trip(ping) bar of the X-X line of Figure 10 and the profile of framework.
Embodiment
Below, execution mode involved in the present invention is described with reference to the accompanying drawings.In addition, the same numeral in each accompanying drawing is represented identical or suitable part.
Fig. 1 is the oblique view of the outward appearance of the circuit-breaker in the expression embodiments of the present invention 1, Fig. 2 is illustrated in the switching mechanism portion under the state that takes off housing and the oblique view of tripgear, Fig. 3 is illustrated in the switching mechanism portion under the on-state and the perspective oblique view of tripgear, and Fig. 4 is illustrated in the switching mechanism portion under the tripped condition and the perspective oblique view of tripgear.
In Fig. 1, Fig. 2, circuit-breaker 100 is made of switching mechanism portion 200, tripgear 300, make and break contact portion (not shown) and arc-extinction device (not shown), arc-extinction device is housed in the pedestal framework 1, this pedestal framework 1 is made of pedestal 1b that utilizes insulating material to form and middle part pedestal 1a, and switching mechanism portion 200, tripgear 300 and make and break contact portion fixedly remain on the pedestal 1a of middle part.In Fig. 3, Fig. 4, size of current is detected, flowing through under the situation of overload current, bimetallic portion 2 flexural deformations of tripgear 300, make trip(ping) bar 3 actions of switching mechanism portion, by making lock part 4 action with trip(ping) bar 3 butts, thereby make 200 tripping operations of switching mechanism portion, the fixed contact 5 of make and break contact portion separates with travelling contact 6.
In addition, under the situation of short circuit current flow, the coil portion 7 of tripgear 300 produces big magnetic force, make movable core 8 actions, make lock part 4 actions by movable core 8, thereby make 200 tripping operations of switching mechanism portion, the fixed contact 5 of make and break contact portion separates with travelling contact 6.
Fig. 5 is the oblique view that the switching mechanism portion of the related circuit-breaker of expression embodiments of the present invention 1 is in on-state, Fig. 6 is the sectional side view that expression switching mechanism portion is in on-state, Fig. 7 is the oblique view that expression switching mechanism portion is in off-state, Fig. 8 is the sectional side view that expression switching mechanism portion is in off-state, Fig. 9 is the oblique view that expression switching mechanism portion is in tripped condition, and Figure 10 is the sectional side view that expression switching mechanism portion is in tripped condition.
Extremely shown in Figure 10 as Fig. 5, in switching mechanism portion 200, the connecting rod of component parts (on) 9 and connecting rod (descending) 10 be configured on the power supply side terminal one load side terminal direction (left and right directions shown in the sectional side view), main spring 11 is hooked on the main spring hook 12a of portion and connecting pin 13 of handle arm 12, thereby be configured on power supply side terminal-load side terminal direction (left and right directions shown in the sectional side view), this connecting pin 13 link connecting rods (on) 9 and connecting rod (descending) 10.
Figure 11 is the oblique view of the trip(ping) bar in the switching mechanism portion of the related circuit-breaker of expression embodiments of the present invention 1, Figure 12 is trip(ping) bar and the oblique view of lock part under on-state in the expression switching mechanism portion, Figure 13 is trip(ping) bar and the sectional side view of lock part under on-state in the expression switching mechanism portion, Figure 14 is trip(ping) bar and the oblique view of lock part under tripped condition in the expression switching mechanism portion, and Figure 15 is trip(ping) bar and the sectional side view of lock part under tripped condition in the expression switching mechanism portion.
As shown in figure 11, on trip(ping) bar 3, the abutting part 3a and the rotary shaft 3b that are used for bimetallic portion 2 butts of tripgear 300 are what to separate, and this trip(ping) bar 3 constitutes to have: abutting part 3a; And paired jut 3c, it is each other across the regulation space and relatively configuration, and the end of this jut 3c links with abutting part 3a, along giving prominence to the meet at right angles direction of (vertical) of this abutting part 3a.Leading section side at each jut 3c is provided with rotary shaft 3b, it inserts in the axis hole 14a of institutional framework 14, support the rotation of trip(ping) bar 3, in addition, at least be formed for abutting part 3d with the lock part butt, lock part 4 butts that itself and limit trip bar 3 rotate at the front end of a jut 3c.
Extremely shown in Figure 15 as Figure 12, for trip(ping) bar 3 and lock part 4, under on-state, trip(ping) bar 3 and the abutting part 3d lock part butt, carry out butt with lock part 4 with the abutting part 4a trip(ping) bar butt, and trip(ping) bar is kept, flowing through under the situation of overload current, 2 flexural deformations of bimetallic portion, to with the abutting part 3a imposed load of bimetallic portion 2 butts, trip(ping) bar 3 is that the center is rotated in a clockwise direction with rotary shaft 3b, at the lock part 4 of institute's butt to the abutting part 4a imposed load of trip(ping) bar butt, lock part 4 is that the center rotates in the counterclockwise direction with the rotary shaft 4b of lock part, thereby makes switching mechanism portion 200 action of tripping.
Here, circuit-breaker according to present embodiment 1, because the rotary shaft 3b of trip(ping) bar 3 constitutes, be formed on each other across the space and relatively on the leading section side of the paired jut 3c of configuration, by this paired jut 3c is inserted institutional framework, each rotary shaft 3b is inserted in the axis hole 14a of institutional framework 14, support the rotation of trip(ping) bar 3 thus, so between two jut 3c is recessed, can in this space, dispose other parts.
That is, the rotary shaft 3b of trip(ping) bar 3 can be configured in, during circuit-breaker 100 tripping operations, the component parts of switching mechanism portion 200 is that main spring 11 and handle arm 12 move on the movement locus of the position under the tripped condition from the position under the on-state.
Figure 16 is illustrated on the movement locus of formed main spring 11 of switching manipulation and handle arm 12 to exist under the state of trip(ping) bar rotating shaft 3b, the oblique view of the switching mechanism portion 200 of the circuit-breaker in the embodiments of the present invention 1, Figure 17 is illustrated on the movement locus of formed main spring 11 of switching manipulation and handle arm 12 to have under the state of trip(ping) bar rotating shaft 3b the sectional side view of the switching mechanism portion 200 of circuit-breaker.
As implied above, 1 circuit-breaker according to the embodiment of the present invention, compare owing to being configured with movement locus that rotary shaft 3b with trip(ping) bar 3 avoids main spring 11 and handle arm 12, can make that switching mechanism portion 200 shared distances reduce on power supply side terminal-load side terminal direction, therefore can realize the miniaturization of switching mechanism portion 200 and the miniaturization of circuit-breaker 100.
Figure 18 illustrates the circuit-breaker in the embodiments of the present invention 2, is that expression is along the trip(ping) bar 3 of the X-X line of Figure 10 and the profile of institutional framework 14.
In the circuit-breaker of embodiments of the present invention 2, trip(ping) bar 3 is made of the resin as elastomeric element.
That is, trip(ping) bar 3 is a resin system, and the jut 3c that front end has rotary shaft 3b can pass through strain and deflection.
According to present embodiment 2,, make the front end of trip(ping) bar 3 have the jut 3c of rotary shaft 3b along arrow by strain
The direction deflection, be installed in the axis hole 14a of institutional framework 14 in that trip(ping) bar 3 is inserted along arrow (→) direction after, the deflection recovery of jut 3c, trip(ping) bar 3 successfully moves.Thus, owing to trip(ping) bar 3 easily can be inserted in the institutional framework 14, therefore portion of assembled switch mechanism 200 easily.
Figure 19～Figure 21 is the figure of the circuit-breaker of explanation embodiments of the present invention 3, Figure 19 is the oblique view of the trip(ping) bar 3 of indication circuit circuit breaker, Figure 20 is the exploded perspective view of the switching mechanism portion that makes the trip(ping) bar insertion of circuit-breaker, and Figure 21 is that expression is along the trip(ping) bar 3 of the X-X line of Figure 10 and the profile of institutional framework 14.
The circuit-breaker of embodiments of the present invention 3 constitutes, on the basis of the circuit-breaker of execution mode 2, as Figure 19, shown in Figure 21, when mounted the front end of trip(ping) bar 3 is had on the direction that the jut 3c of rotary shaft 3b inserts in institutional framework 14, inclined plane part 3e is set at the front end of jut 3c.
According to present embodiment 3, the jut 3c deflection that has rotary shaft 3b at the front end that makes trip(ping) bar 3 by strain, trip(ping) bar 3 is inserted and when being mounted in the axis hole 14a of institutional framework 14 along arrow (→) direction, even the center of trip(ping) bar 3 and institutional framework 14 misplaces slightly, also because the inclined plane part 3e of the jut 3c front end of trip(ping) bar 3 becomes the insertion guide surface, therefore thereby trip(ping) bar 3 easily can be inserted in the institutional framework 14, portion of assembled switch mechanism 200 easily.
Figure 22 is the exploded perspective view of the switching mechanism portion that makes the trip(ping) bar insertion of the circuit-breaker in the expression embodiments of the present invention 4, and Figure 23 is that the indication circuit circuit breaker is along the trip(ping) bar 3 of the X-X line of Figure 10 and the profile of institutional framework 14.
The circuit-breaker of embodiments of the present invention 4 constitutes, and on the basis of the circuit-breaker of execution mode 2, as Figure 22, shown in Figure 23, when mounted trip(ping) bar 3 is inserted on the direction of institutional frameworks 14, at the end face of institutional framework 14 inclined plane part 14b is set.
According to present embodiment 4, the jut 3c deflection that has rotary shaft 3b at the front end that makes trip(ping) bar 3 by strain, trip(ping) bar 3 is inserted and when being mounted in the axis hole 14a of institutional framework 14 along arrow (→) direction, even the center of trip(ping) bar 3 and institutional framework 14 misplaces slightly, also because the inclined plane part 14b of institutional framework 14 becomes the insertion guide surface, therefore thereby trip(ping) bar 3 easily can be inserted in the institutional framework 14, portion of assembled switch mechanism 200 easily.
Claims (4)
1. circuit-breaker, it detects size of current, is flowing through under the situation of overload current, and tripgear rotates trip(ping) bar, by making the lock part action with the trip(ping) bar butt, thereby makes the action of switching mechanism portion,
It is characterized in that,
Described trip(ping) bar constitutes to have: carry out the abutting part of butt with described tripgear; And paired jut, it disposes relatively across the regulation space each other, one end of this jut and this abutting part link, outstanding to the direction vertical with this abutting part, side at described paired jut forms rotary shaft respectively, it is mounted in the axis hole of institutional framework of switching mechanism portion, rotation to trip(ping) bar is supported, and the front end at a jut forms the abutting part that the lock part that rotates with the limit trip bar carries out butt at least, in the space recess that described paired jut forms, movement locus when existing the component parts of switching mechanism portion to carry out switching manipulation, the rotary shaft of described trip(ping) bar is configured on this movement locus.
2. circuit-breaker according to claim 1 is characterized in that,
Described trip(ping) bar is made of resin, installs on institutional framework by making front end have the described jut elastic deflection of rotary shaft.
3. circuit-breaker according to claim 2 is characterized in that,
Front end at described jut is provided with the inclined-plane.
4. circuit-breaker according to claim 2 is characterized in that,
When the rotary shaft of described jut is installed in the axis hole of institutional framework rake is set on the end face of institutional framework of process.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-250817 | 2008-09-29 | ||
| JP2008250817A JP5054648B2 (en) | 2008-09-29 | 2008-09-29 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101714485A true CN101714485A (en) | 2010-05-26 |
| CN101714485B CN101714485B (en) | 2013-05-29 |
Family
ID=42210591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910008732 Active CN101714485B (en) | 2008-09-29 | 2009-02-06 | Circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5054648B2 (en) |
| CN (1) | CN101714485B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915889B (en) * | 2012-10-30 | 2014-12-17 | 科都电气有限公司 | Circuit breaker mechanism and bipolar circuit breaker using same |
| CN104134588B (en) * | 2014-07-17 | 2016-03-02 | 正泰集团股份有限公司 | A kind of operating means of multipole small-size circuit breaker |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62177825A (en) * | 1986-01-31 | 1987-08-04 | 東芝ライテック株式会社 | Circuit breaker |
| JP2928602B2 (en) * | 1990-07-25 | 1999-08-03 | 株式会社日立製作所 | Circuit breaker for wiring |
| GB2279811B (en) * | 1993-07-06 | 1997-07-09 | Circuit Breaker Ind | A circuit breaker mechanism |
-
2008
- 2008-09-29 JP JP2008250817A patent/JP5054648B2/en active Active
-
2009
- 2009-02-06 CN CN 200910008732 patent/CN101714485B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101714485B (en) | 2013-05-29 |
| JP5054648B2 (en) | 2012-10-24 |
| JP2010080415A (en) | 2010-04-08 |
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