CN208189487U - A kind of miniature circuit breaker - Google Patents
A kind of miniature circuit breaker Download PDFInfo
- Publication number
- CN208189487U CN208189487U CN201820722534.9U CN201820722534U CN208189487U CN 208189487 U CN208189487 U CN 208189487U CN 201820722534 U CN201820722534 U CN 201820722534U CN 208189487 U CN208189487 U CN 208189487U
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- CN
- China
- Prior art keywords
- push rod
- mounting rack
- circuit breaker
- miniature circuit
- arc
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Abstract
The utility model discloses a kind of miniature circuit breakers, including shell and it is set to the intracorporal handle mechanism of shell, electromagnetic system, operating system and transfer bar mechanism, the handle mechanism is connect with operating system, and the operating system is provided with moving contact, and the electromagnetic system is provided with static contact；The transfer bar mechanism is set to the lower section of handle mechanism, and the transfer bar mechanism includes the first spring and push rod, and one end of first spring is fixedly connected with the casing, and the other end of first spring and one end of push rod are socketed, and the other end of the push rod is free end；The free end of the push rod is reverse hook type structure.Using the utility model, reduces the generation probability of electric spark, improve the performance of product.
Description
Technical field
The utility model relates to a kind of breaker, in particular to a kind of miniature circuit breaker.
Background technique
The handle position of breaker generally divides 3 positions, and one: open position.Two: middle position.Three: closing position.It is existing
There is product when handle position is in an intermediate position, the outlet mechanism contact of product is connected with inlet wire contact, does not at this moment have
Pressure is also easy to produce big electric arc, because immediate current is very big, therefore the contact of product is easy to burn out as loaded very greatly.
Utility model content
The purpose of this utility model provides a kind of miniature circuit breaker, improves the security performance of product.
In order to solve the problems existing in the prior art, the utility model provides a kind of miniature circuit breaker, which includes: shell
Body and it is set to the intracorporal handle mechanism of shell, electromagnetic system, operating system and transfer bar mechanism, the handle mechanism and operation
System connection, the operating system are provided with moving contact, and the electromagnetic system is provided with static contact；The transfer bar mechanism is set to
The lower section of handle mechanism, the transfer bar mechanism include the first spring and push rod, and one end of first spring and shell, which are fixed, to be connected
It connects, the other end of first spring and one end of push rod are socketed, and the other end of the push rod is free end；The push rod from
By holding as reverse hook type structure.
Preferably, the electromagnetic system includes: the first mounting rack, magnet coil component and rear copper sheet, the magnet coil
Component is fixed on the first mounting rack, it is described after one end of copper sheet be fixedly connected with the first mounting rack, the copper sheet afterwards it is another
End is free end, and the free end is set to the lower section of mounting rack, the free end of the rear copper sheet and arc piece as arc piece
Between be provided with static contact.
Preferably, the magnet coil component includes iron core, second spring, coil rack and push rod, and second spring covers
On the excircle of push rod, the coaxial inside for being set to iron core of push rod, the coaxial outside for being set to iron core of coil rack, coil
It is wrapped on coil rack；The connection of the end of incoming cables of coil tail end and breaker.
Preferably, the operating system includes: the second mounting rack, third mounting rack, moving contact component and bimetal leaf group
One end of part, the second mounting rack is connect by connecting rod with handle mechanism, and the other end of the second mounting rack is connect with third mounting rack,
Third mounting rack is flexibly connected with moving contact component, and moving contact component is connect by copper wire with bimetal leaf component.
It preferably, further include arc striking piece；The bi-metallic element includes the fever tablet connecting with arc striking piece and bimetal leaf,
The bimetal leaf is connect with fever tablet, the leading-out terminal connection of the fever tablet and breaker.
Preferably, further includes: arc quenching plate and arc-chutes, the arc-chutes are set to the lower section of arc piece, the arc quenching plate
It is arranged close to static contact, positioned at the lower section of static contact.
It preferably, further include flash barrier, the flash barrier is located at the lower section of miniature circuit breaker end of incoming cables.
The handle push rod of the utility model is provided with fluking type structure, which makes breaker contact when closing a floodgate
Energy one-time-reach-place, specifically, being at this moment that push-pull rod has held handle, using when handle shifts middle position onto from open position
Line mechanism contact and inlet wire contact cannot contact conducting, when handle middle position is to closing position, the at this moment fluking type knot of push rod
Structure has disengaged handle, so that outlet mechanism contact is had inertial pressure, and contact conducting, so that the generation for reducing electric spark is several
Rate improves the performance of product.
Detailed description of the invention
Fig. 1 is a kind of schematic front view of miniature circuit breaker of the utility model;
Fig. 2 is the schematic top plan view of Fig. 1；
Fig. 3 is a kind of schematic diagram of miniature circuit breaker of the utility model;
Fig. 4 is a kind of schematic diagram of the electromagnetic system of miniature circuit breaker of the utility model；
Fig. 5 is a kind of schematic diagram of the operating mechanism of miniature circuit breaker of the utility model;
Fig. 6 is a kind of push rod schematic diagram of miniature circuit breaker of the utility model；
Fig. 7 is a kind of schematic diagram of the control module of miniature circuit breaker of the utility model；
Fig. 8 is a kind of schematic diagram of the controller of the control module of miniature circuit breaker of the utility model；
Fig. 9 is a kind of schematic diagram of the power circuit of miniature circuit breaker of the utility model；
Figure 10 is a kind of schematic diagram of the voltage sampling circuit of miniature circuit breaker of the utility model；
Figure 11 is a kind of showing for the voltage sampling circuit of miniature circuit breaker connector connected to the controller of the utility model
It is intended to；
Figure 12 is a kind of schematic diagram of the current sampling circuit of miniature circuit breaker of the utility model；
Figure 13 is a kind of showing for the current sampling circuit of miniature circuit breaker connector connected to the controller of the utility model
It is intended to.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
As shown in figures 1-13, which includes breaker module 100 and control module 200,200 He of control module
Breaker module 100 connects.
Breaker module 100 includes multiple miniature circuit breaker modules, and miniature circuit breaker includes handle mechanism, electromagnetic system 5
With operating system 15, handle mechanism is connect with operating system 15.Handle mechanism is connect by connecting rod 12 with operating system 15.In hand
When handle mechanism is in "on" position, the moving contact of mechanical system 15 is contacted with the static contact of electromagnetic system 5；It is in handle mechanism
When tripped condition, the moving contact of mechanical system 15 is separated with the static contact of electromagnetic system 5.
Handle mechanism, including supporter 7, the first spring 9, handle 10, second spring 11, handle 10 is on supporting element 7, hand
The first spring 9 and second spring 11 are provided on handle 10.
Electromagnetic system 5, as shown in figure 4, including the first mounting rack 56, magnet coil component and rear copper sheet 57, magnet coil
Component is fixed on 56 on the first mounting rack, and one end 571 of rear copper sheet 57 is fixedly connected with the first mounting rack 56, rear copper sheet it is another
End is free end 573, and free end 573 is set to the lower section of the first mounting rack 56 as arc piece, the free end of rear copper sheet 57 with
Static contact 572 is provided between arc piece 573.Magnet coil component includes iron core 54, spring 55, coil rack 53 and push rod
52,55 sets of spring on the excircle of push rod 52, the coaxial inside for being set to iron core of push rod, coil rack is coaxial to be set to
The outside of iron core, coil are wrapped on coil rack；Coil tail end 51 is connect with the end of incoming cables 58 of breaker.End of incoming cables 58 includes
Screw 583, fixed frame 582 and fixing seat 581, screw 583 are mounted in fixing seat 581 by fixed frame 582.
Operating system 15, refering to what is shown in Fig. 5, including the second mounting rack 132, third mounting rack 134, spring 133, moving contact
One end of component 131 and bimetal leaf component 137, the second mounting rack 132 is connect by connecting rod with handle mechanism, the second mounting rack
132 other end is connect with third mounting rack 134, and third mounting rack 134 is connect by connector 135 with shell 1, third installation
Frame 134 is flexibly connected with moving contact component 131, and spring 133 is provided between moving contact component 131 and third mounting rack 134, is moved
Contact members 131 are connect by copper wire 136 with bimetal leaf component 137.Bimetal leaf component 137 includes connecting with arc striking piece 138
The fever tablet 1371 and bimetal leaf 1372 connect, bimetal leaf 1532 are connect with fever tablet 1371, fever tablet 1371 and breaker
Leading-out terminal 139 connect.Leading-out terminal 139 includes leading-out terminal fixing seat 1393, and leading-out terminal fixed frame 1392 and leading-out terminal are fixed
Screw 1391, wherein leading-out terminal fixed screw 1391 is threadedly coupled by fixed frame 1392 with leading-out terminal fixing seat 1393.Dynamic touching
One end 1312 of head component 131 is connect by copper wire with bimetal leaf component, and the other end of moving contact component 131 is moving contact
1311。
In addition, the miniature circuit breaker further includes arc quenching plate 4, arc-chutes 3 and flash barrier 2 and transfer bar mechanism, arc-chutes 3 are arranged
In the lower section of arc piece 573, arc quenching plate 4 is arranged close to static contact, positioned at the lower section of static contact.Flash barrier 2 be located at breaker into
The lower section of the fixing seat 581 of line end.Transfer bar mechanism includes spring 8 and push rod 6, and one end of spring 8 is fixedly connected with shell 1, bullet
The other end of spring 8 and one end of push rod 6 are socketed, and the other end of push rod 6 is free end；Push rod is set to the lower section of handle mechanism,
The free end of push rod is reverse hook type structure, and when handle mechanism shifts middle position onto from open position, the reverse hook type structure catches on hand
Handle mechanism, when handle mechanism shifts closing position onto from middle position, reverse hook type structure and handle mechanism are disengaged.Push rod 6 such as Fig. 6
It is shown.
As shown in fig. 7, control module 200 includes shell 201 and the driving motor 202 being set in shell, pcb board
203, spring 204, groove 205, worm gear shaft 206, worm gear end cap 207, worm gear 208, worm screw 209, retarder 210 and electronic device
211, the output shaft of driving motor 202 is connect with the input terminal of retarder 210, and the output end of retarder 210 and worm screw 209 connect
It connects, worm screw 209 engages with worm gear 208, and the end of worm gear 208 is provided with end cap 207, and end cap 207 is provided centrally with square hole, should
Square shaft 206 is installed, square shaft 206 and square hole are interference fitted, and the other end of square shaft 206 passes through the centre bore and hand of worm gear in square hole
Handle connection.Groove 205 is fixedly connected with shell 1, and spring 204 is equipped in groove 205.Multiple electric appliances are installed on pcb board 203
Element 211, each electric elements are different according to the function that it is realized, only give the volume of one of electric elements here
Number, must not believe that there was only a kind of this electric elements on pcb board 203, but it is different that also multiple functions are construed as on pcb board
Electric elements.
When specific implementation, the driving motor 202 of controller drive worm and gear carry out rotation to fixed handle tripping and
Closure.
In addition the another side of pcb board 203 is also equipped with controller, as shown in figure 8, controller include central control unit and
Peripheral circuit, corresponding peripheral circuit may include power circuit 21, voltage sampling circuit 22, indicator light 23, warning output electricity
Road 24 and feedback signal circuit 25, these peripheral circuits are connect with centralized control unit respectively.
Power circuit 21 is used to provide operating voltage for controller and peripheral sample circuit, the specific reality of the power circuit
Existing circuit as shown in figure 9, include surge absorbing circuit 211, filter circuit 212, rectification circuit 213, peak absorbing circuit 214,
Switch transformer circuit 215, metal-oxide-semiconductor driving circuit 219, Voltage Feedback pressure stabilizing and short-circuit control circuit 218 and 12V output electricity
Road 216 and 5V output circuit 217.Wherein external power input is connect with the input terminal of surge absorbing circuit 211, surge absoption
The output end of circuit 211 and the input terminal of filter circuit connect, and the output end of filter circuit and the input terminal of rectification circuit connect,
The output end of rectification circuit is connect with one end of the primary coil of switch transformer circuit, switch transformer primary circuit coil
The other end is connect with metal-oxide-semiconductor driving circuit, and the both ends of switch transformer primary coil are also connected with peak absorbing circuit.Voltage is anti-
The collector of feedback pressure stabilizing and short-circuit control circuit is connect with switch transformer feedback coil, Voltage Feedback pressure stabilizing and fault control electricity
The emitter-base bandgap grading on road is connect with metal-oxide-semiconductor driving circuit.The output end of switch transformer circuit is connected separately with 12V output circuit and 5V is defeated
Circuit out.
It should be noted that surge absorbing circuit, peak absorbing circuit and Voltage Feedback pressure stabilizing in the present embodiment and short
The setting of road control circuit improves the quality of signal transmission, improves the performance of entire circuit.Therefore in the ideal case, on
Stating three circuits can not also include.
Voltage sampling circuit 22, for obtaining the voltage of input terminal, specific implementation circuit is as shown in Figure 10, and passes through Figure 11
Connector connect with controller.And current sampling circuit can be increased, by current parameters to the disconnection of breaker and
Closure is controlled.The current sampling circuit of specific implementation is as shown in figure 12, which can pass through the plugging member of Figure 13
It is connect with controller.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (7)
1. a kind of miniature circuit breaker, which is characterized in that including shell and be set to the intracorporal handle mechanism of shell, electromagnetic system,
Operating system and transfer bar mechanism, the handle mechanism are connect with operating system, and the operating system is provided with moving contact, the electricity
Magnetic system is provided with static contact；The transfer bar mechanism is set to the lower section of handle mechanism, and the transfer bar mechanism includes the first spring
And push rod, one end of first spring are fixedly connected with the casing, the other end of first spring and one end of push rod are socketed,
The other end of the push rod is free end；The free end of the push rod is reverse hook type structure.
2. miniature circuit breaker according to claim 1, which is characterized in that the electromagnetic system includes: the first mounting rack, magnetic
Iron wire coil assembly and rear copper sheet, the magnet coil component are fixed on the first mounting rack, one end and first of the rear copper sheet
Mounting rack is fixedly connected, and the other end of the rear copper sheet is free end, and the free end is set to mounting rack as arc piece
Lower section is provided with static contact between the free end and arc piece of the rear copper sheet.
3. miniature circuit breaker according to claim 2, which is characterized in that the magnet coil component includes iron core, second
Spring, coil rack and push rod, second spring cover on the excircle of push rod, the coaxial inside for being set to iron core of push rod, line
The coaxial outside for being set to iron core of ring framework, coil are wrapped on coil rack；The end of incoming cables of coil tail end and breaker connects
It connects.
4. miniature circuit breaker according to claim 1, which is characterized in that the operating system includes: the second mounting rack,
One end of three mounting racks, moving contact component and bimetal leaf component, the second mounting rack is connect by connecting rod with handle mechanism, and second
The other end of mounting rack is connect with third mounting rack, and third mounting rack is flexibly connected with moving contact component, and moving contact component passes through
Copper wire is connect with bimetal leaf component.
5. miniature circuit breaker according to claim 4, which is characterized in that further include arc striking piece；The bi-metallic element packet
The fever tablet connecting with arc striking piece and bimetal leaf are included, the bimetal leaf is connect with fever tablet, the fever tablet and breaker
Leading-out terminal connection.
6. miniature circuit breaker according to claim 2, which is characterized in that further include: arc quenching plate and arc-chutes, the arc extinguishing
Room is set to the lower section of arc piece, and the arc quenching plate is arranged close to static contact, positioned at the lower section of static contact.
7. miniature circuit breaker according to claim 1 to 6, which is characterized in that further include flash barrier, it is described every
Arc grid are located at the lower section of miniature circuit breaker end of incoming cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820722534.9U CN208189487U (en) | 2018-05-15 | 2018-05-15 | A kind of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820722534.9U CN208189487U (en) | 2018-05-15 | 2018-05-15 | A kind of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208189487U true CN208189487U (en) | 2018-12-04 |
Family
ID=64430674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820722534.9U Active CN208189487U (en) | 2018-05-15 | 2018-05-15 | A kind of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208189487U (en) |
-
2018
- 2018-05-15 CN CN201820722534.9U patent/CN208189487U/en active Active
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