CN2284445Y - Multifunctional mini circuit break - Google Patents
Multifunctional mini circuit break Download PDFInfo
- Publication number
- CN2284445Y CN2284445Y CN 96223154 CN96223154U CN2284445Y CN 2284445 Y CN2284445 Y CN 2284445Y CN 96223154 CN96223154 CN 96223154 CN 96223154 U CN96223154 U CN 96223154U CN 2284445 Y CN2284445 Y CN 2284445Y
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- spring
- lever
- circuit breaker
- handle
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a multifunctional miniature circuit breaker. An overload time delay trip composed of a bimetallic strip, a push plate linked with the bimetallic strip and a locking button linked with the push plate, a short circuit instantaneous strip composed of a magnetic yoke, a coil wound on the magnetic yoke, an iron core arranged in the magnetic yoke, a spring and a push rod, an operating mechanism composed of a handle, a connecting rod arranged on the handle, a locking button linked with the connecting rod, a jumping button linked with the connecting rod, a push plate linked with the locking button, a lever and a spring, and an arc extinguishing chamber composed of an ionic grid piece and ceramic arc plates arranged on both sides of a fixed contact and a movable contact are arranged in a casing composed of a front and a back covers.
Description
The utility model 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 purpose of this utility model is to provide a kind of novelty simple in structure, and profile is small and exquisite, attractive in appearance, installation, safe multifunctional miniature circuit breaker easy to use.
To achieve these goals, the utility model 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 utility model 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 utility model is elaborated.
Fig. 1 is the structural representation of a preferred embodiment of the utility model;
Fig. 2 is the front view after preferred embodiment assembling of the utility model;
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 utility model 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 to the utlity model 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.
The utility model lower housing portion 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), and 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 |
|---|---|---|---|
| CN 96223154 CN2284445Y (en) | 1996-12-26 | 1996-12-26 | Multifunctional mini circuit break |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96223154 CN2284445Y (en) | 1996-12-26 | 1996-12-26 | Multifunctional mini circuit break |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2284445Y true CN2284445Y (en) | 1998-06-17 |
Family
ID=33902527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96223154 Expired - Fee Related CN2284445Y (en) | 1996-12-26 | 1996-12-26 | Multifunctional mini circuit break |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2284445Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117316732A (en) * | 2023-11-28 | 2023-12-29 | 苏州普兆新能源设备有限公司 | DC circuit breaker equipment |
-
1996
- 1996-12-26 CN CN 96223154 patent/CN2284445Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117316732A (en) * | 2023-11-28 | 2023-12-29 | 苏州普兆新能源设备有限公司 | DC circuit breaker equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |