CN1186321A - Multifunctional miniature circuit breaker - Google Patents
Multifunctional miniature circuit breaker Download PDFInfo
- Publication number
- CN1186321A CN1186321A CN96116635A CN96116635A CN1186321A CN 1186321 A CN1186321 A CN 1186321A CN 96116635 A CN96116635 A CN 96116635A CN 96116635 A CN96116635 A CN 96116635A CN 1186321 A CN1186321 A CN 1186321A
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- CN
- China
- Prior art keywords
- connecting rod
- spring
- circuit breaker
- yoke
- lever
- 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.)
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Abstract
A multifunctional miniature breaker is composed of casing including front and back covers, overload delay tripping mechanism consisting of bimetal piece, push plate linked with the bimetal piece and lock linked with push plate, short-circuit instantaneous tripping mechanism comprising magnetic yoke, coil wound around magnetic yoke, core in the yoke, spring and push rod, operating mechanism composed of handle, connecting rod on handle, lock and jumper linked with connecting rod, push plate linked with lock, lever and spring, and arc-suppressing chamber consisting of ion-type grid piece and arc-isolating ceramic pieces at both sides of static and moving contacts.
Description
The present invention relates to a kind of protective device in order to electric wiring, power consumption equipment overload, short circuit, is a kind of multifunctional miniature circuit breaker specifically.
Usually in the appliance circuit of low pressure terminal, fuse is installed all, is used to protect power consumption equipment and electric wiring.Simple way is then installed fusible link in the electric wiring of low pressure terminal, all adopt this way in the general home electric circuit.Along with kind, the quantity of household electrical appliance constantly increases, cause the low-voltage distribution system capacity constantly to enlarge, reliability to power supply, continuity and security requirement are more and more higher, traditional fuse can not be satisfied the demand, thereby needing a kind of simple in structurely, cost is low, installs, safe miniature circuit breaker easy to use replaces traditional fuse.
The object of the present invention is to provide a kind of novelty simple in structure, profile is small and exquisite, attractive in appearance, installation, safe multifunctional miniature circuit breaker easy to use.
To achieve these goals, the present invention adopts following technical scheme: a kind of multifunctional miniature circuit breaker, comprise the housing of forming by front and rear covers, it is characterized in that having in this housing: by be connected on bimetal leaf in the circuit, with the push pedal of this bimetal leaf interlock and the overload delayed release of forming with the snap close of this push pedal interlock; By yoke, being connected on the coil in the circuit and being located at the short circuit instantaneous release that iron core, spring, push rod in this yoke are formed on this yoke; By handle, the operating mechanism that is located at connecting rod on this handle, forms with the snap close of this connecting rod interlock and tripping, with the push pedal and the lever of this snap close interlock, one end of lever is connected with tripping, the other end is connected with moving contact, the chain spring of suit on the lever, connecting rod is provided with a back-moving spring; By ionic formula grid sheet be located at the arc control device that the ceramic flash barrier of fixed contact and moving contact both sides is formed.
Compared with the prior art the present invention has conspicuous advantage, novel structure, and profile is small and exquisite attractive in appearance.Easy to install, mechanism is simple, and transmission link is few, thereby has shortened mechanism intrinsic operate time, helps the raising of circuit breaker short circuit make-break capacity, and is applied widely.
Below in conjunction with drawings and Examples the present invention is elaborated.
Fig. 1 is the structural representation of a preferred embodiment of the present invention;
Fig. 2 is the front view after a preferred embodiment of the present invention assembling;
Fig. 3 is Fig. 2 elevational schematic view;
Fig. 4 is Fig. 2 schematic top plan view;
Fig. 5 is that schematic diagram is looked on Fig. 2 right side;
Fig. 6 is that schematic diagram is looked on Fig. 2 left side;
Fig. 7 is Fig. 2 schematic rear view.
See also Fig. 1 to shown in Figure 7, the present invention is made up of housing 50, overload delayed release, short circuit instantaneous release, operating mechanism and arc control device.
See also shown in Figure 1 again; the overload delayed release is the hot dropout protection mechanism of double-metal sheet type; the permission overload capacity of its overload delay protection characteristic and protected lead or power consumption equipment is complementary, and when overload current occurring, bimetal leaf 25 heatings are crooked; when reaching predetermined sag; drive push pedal 26 certain distance that moves right, snap close 19 is rotated, connecting rod 18 skids off; remove " pinning " state of operating mechanism, moving contact 1 separates rapidly.Change the resistivity of bimetal leaf, can change the rated current of circuit breaker.
The short circuit instantaneous release is small-sized solenidal electromagnet, mainly is made up of yoke 14, the iron core 11, spring 13, push rod 12 and the coil 15 that is connected in the circuit on this yoke that are located in this yoke.Short circuit current by the time, the electromagnetic force that coil 15 produces makes iron core 11 overcome spring 13 counter-forces and instantaneously moves in coil, promotes push rod 12 snap close 19 is rotated, thereby makes mechanism's " dropout ", moving contact 1 separates rapidly.Be characterized in the magnetic efficiency height, response speed is fast, thereby helps improving short circuit breaking capacity.
Operating mechanism mainly by handle 17, be located at connecting rod 18 on this handle, with the snap close 19 and the tripping 20 of this connecting rod interlock, form with the push pedal 26 and the lever 23 of this snap close interlock.One end of lever 23 is connected with tripping 20, the other end is connected with moving contact 1, the chain spring 24 of suit on the lever 23, and connecting rod 18 is provided with a back-moving spring 16.When closed, pull handle 17 left, connecting rod 18 promotes tripping 20 and clockwise rotates around axle 22, drives lever 23 and promotes moving contact 1 to fixed contact 2 motions.During two contact closure,, make contact keep bigger pressure by elastic force by mechanical chain spring 24 and lever 23; During opening operation, pull handle 17 to the right, connecting rod 18 drives tripping 20 and rotates counterclockwise around axle 22, and when lever 23 turned over " dead point " position, the spring force of storage separated moving contact 1 rapidly.When overload or short trouble take place when, after bimetal leaf or electromagnetic mechanism made the circuit breaker automatic disconnection, because the pulling force of spring 16, operating mechanism entered " snap close " state automatically, can directly carry out closed procedure, save essential " button again " operating process of other like product.So it is simple that the present invention has mechanism, characteristics such as transmission link is few, thereby shortened mechanism intrinsic operate time, help the raising of circuit breaker short circuit make-break capacity.
Contact 1,2 is the single-break structure, contact shape and all good inserted contact tip composite materials of the electrical and thermal conductivity performance of selecting for use, and the arc energy that contact disjunction short circuit current is produced is transferred in the arc control device rapidly.Arc control device are ionic formula grid chip architectures, have 12 nickel plating iron plates 61, and a slice pottery flash barrier 7 of anti-electric arc respectively is equipped with in contact 1,2 both sides, helps electric Arc Motion and extinguishes.Contact adopts composite structure, and its contact site is silver, and remainder is copper, adopts this spline structure, can reduce cost, and does not influence electric conductivity again.
Lower housing portion of the present invention is provided with clamping-rail clamp 3 and spring 5 is installed, and makes to install and change the circuit breaker more convenient and quicker.
Claims (3)
1. a multifunctional miniature circuit breaker comprises the housing of being made up of front and rear covers, it is characterized in that having in this housing:
(1) by be connected on bimetal leaf (25) in the circuit, with the push pedal (26) of this bimetal leaf interlock and the overload delayed release of forming with the snap close (19) of this push pedal interlock,
(2) by yoke (14), being connected on the coil (15) in the circuit and being located at the short circuit instantaneous release that iron core (11), spring (13), push rod (12) in this yoke are formed on this yoke,
(3) by handle (17), be located at the operating mechanism that connecting rod (18) on this handle, the push pedal (26) that links with the snap close (19) of this connecting rod interlock and tripping (20), with this snap close and lever (23) are formed, one end of lever (23) is connected with tripping (20), the other end is connected with moving contact (1), lever (23) is gone up the chain spring of suit (24), connecting rod (18) is provided with a back-moving spring (16)
(4) by ionic formula grid sheet (6) be located at fixed contact (2) and arc control device that the ceramic flash barrier (7) of moving contact (1) both sides is formed.
2. multifunctional miniature circuit breaker according to claim 1 is characterized in that: described ionic formula grid sheet (6) is made of side by side the nickel plating iron plate (61) that is provided with at interval.
3. multifunctional miniature circuit breaker according to claim 1 is characterized in that: described fixed contact and moving contact are made up of the mosaic copper silver composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116635A CN1186321A (en) | 1996-12-25 | 1996-12-25 | Multifunctional miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116635A CN1186321A (en) | 1996-12-25 | 1996-12-25 | Multifunctional miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1186321A true CN1186321A (en) | 1998-07-01 |
Family
ID=5123725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96116635A Pending CN1186321A (en) | 1996-12-25 | 1996-12-25 | Multifunctional miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1186321A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923987A (en) * | 2009-06-09 | 2010-12-22 | 浙江科都电气制造有限公司 | Improved breaker |
| CN102193014A (en) * | 2010-03-17 | 2011-09-21 | 上海电器股份有限公司人民电器厂 | Low-cost electricity-stealing prevention device |
| CN107393772A (en) * | 2017-08-30 | 2017-11-24 | 黄银坤 | A kind of breaker |
-
1996
- 1996-12-25 CN CN96116635A patent/CN1186321A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923987A (en) * | 2009-06-09 | 2010-12-22 | 浙江科都电气制造有限公司 | Improved breaker |
| CN101923987B (en) * | 2009-06-09 | 2013-06-12 | 科都电气有限公司 | Improved breaker |
| CN102193014A (en) * | 2010-03-17 | 2011-09-21 | 上海电器股份有限公司人民电器厂 | Low-cost electricity-stealing prevention device |
| CN102193014B (en) * | 2010-03-17 | 2013-06-05 | 上海电器股份有限公司人民电器厂 | Low-cost electricity-stealing prevention device |
| CN107393772A (en) * | 2017-08-30 | 2017-11-24 | 黄银坤 | A kind of breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |