CN204928488U - End cover subassembly structure of motor for circuit breaker - Google Patents
End cover subassembly structure of motor for circuit breaker Download PDFInfo
- Publication number
- CN204928488U CN204928488U CN201520679812.3U CN201520679812U CN204928488U CN 204928488 U CN204928488 U CN 204928488U CN 201520679812 U CN201520679812 U CN 201520679812U CN 204928488 U CN204928488 U CN 204928488U
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- China
- Prior art keywords
- carbon brush
- motor
- circuit breaker
- end cover
- protective device
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Abstract
The utility model discloses an end cover subassembly structure of motor for circuit breaker, the combined motor end cover comprises an end cover, end cover center department opens there is the shaft hole, its inside left and right sides symmetry that lies in the shaft hole is provided with first carbon brush subassembly, second carbon brush subassembly, commutator on carbon brush subassembly and the rotor contacts, the front and back bilateral symmetry that is located the shaft hole in the end cover is provided with first fixing base, the second fixing base, be provided with the locating rack between second fixing base and the shaft hole, it is overheated that the interior installation of locating rack has, the overload protective device of over -current protection function, overload protective device's one end and first carbon brush subassembly electric connection, the first electrode electric connection of its other end and power, the second electrode and the second carbon brush subassembly electric connection of power. The utility model discloses an installing overload protective device inside the motor end cover, need not additionally to occupy the space of circuit breaker, also not needing in addition, outfit equipment removes to protect the motor to have from recovery function, simple structure has saved the cost, and has strengthened the fail safe nature of motor operation.
Description
Technical field
The utility model relates to machine field, particularly relates to a kind of end-cap assembly structure of circuit breaker motor.
Background technology
In the drive unit of distribution apparatus circuit breaker; because breaker structure is complicated; parts are more; its drive motors often can transship due to uncertain factor; time one length will make burn-down of electric motor; circuit breaker cannot normally work, and even also can burn whole circuit breaker and transformer substation system thereof time serious, causes very large loss to user.
In order to solve the problem, part producer adds a fuse on the loop of outside motor input power, and when the load, fuse burns, thus can avoid burn-down of electric motor; But this kind of operator guards is generally used for and is installed on the stator winding of series machine, has certain limitation, and still there is some weak point following in this kind of operator guards:
1, fuse burns rear motor and can not normally start, and could start after must changing fuse;
2, fuse is arranged on outside motor, on the one hand, which occupies certain space, and on the other hand, user need be equipped with corresponding fuse;
3, fuse just can only fuse when input current is excessive, and when when ambient temperature is too high or machine operation temperature is too high, electric current is little, fuse can not action, can not protect motor well.
Utility model content
The purpose of this utility model is for the problems referred to above; a kind of end-cap assembly structure of circuit breaker motor is provided; overload protective device is serially connected on rotor winding; not only can be used for the reliably protecting of series machine; and can be used for the reliably protecting of direct current machine, have the advantages that structure is simple, safe and reliable.
The purpose of this utility model is achieved through the following technical solutions:
A kind of end-cap assembly structure of circuit breaker motor, comprise end cap, described end cap central place has axis hole, the left and right sides that its inside is positioned at axis hole is symmetrically arranged with the first carbon brush component, second carbon brush component, described carbon brush component contacts with epitrochanterian commutator, the front and back bilateral symmetry being positioned at axis hole in described end cap is provided with the first holder, second holder, locating rack is provided with between described second holder and axis hole, it is overheated that the interior installation of described locating rack has, the overload protective device of excess current protective function, one end and first carbon brush component of described overload protective device are electrically connected, first electrode of its other end and power supply is electrically connected, second electrode and second carbon brush component of described power supply are electrically connected.
As a kind of preferred version of the present utility model, in described end cap, be provided with reference column.
As a kind of preferred version of the present utility model, described first holder, the second holder all have fixing hole.
As a kind of preferred version of the present utility model, described locating rack is inverted L-shaped structure.
As a kind of preferred version of the present utility model, described end cap between overload protective device and the second carbon brush component has wire casing, is convenient to cabling.
The beneficial effects of the utility model are; the end-cap assembly structure of described circuit breaker motor is by being installed on electric motor end cap inside by overload protective device; without the need to additionally taking the space of circuit breaker; do not need to be equipped with equipment in addition to go to protect motor yet; and have self-recovering function; structure is simple, provides cost savings, and enhances the security reliability of motor operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the end-cap assembly structure of the utility model circuit breaker motor;
Fig. 2 is circuit theory diagrams of the present utility model;
In figure:
1, end cap; 2, axis hole; 3, the first carbon brush component; 4, the second carbon brush component; 5, reference column; 6, the first holder; 7, the second holder; 8, locating rack; 9, overload protective device; 10, wire casing; 11, commutator; 12, positive pole; 13, negative pole.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.Be understandable that, embodiment described herein only for explaining the utility model, but not to restriction of the present utility model.
Please refer to shown in Fig. 1 and Fig. 2, Fig. 1 is the structural representation of the end-cap assembly structure of the utility model circuit breaker motor; Fig. 2 is circuit theory diagrams of the present utility model;
In the present embodiment, a kind of end-cap assembly structure of circuit breaker motor, comprise end cap 1, described end cap 1 center has axis hole 2, the left and right sides that its inside is positioned at axis hole 2 is symmetrically arranged with the first carbon brush component 3, second carbon brush component 4, described carbon brush component 3, 4 contact with epitrochanterian commutator 11, reference column 5 is provided with in described end cap 1, and the front and back bilateral symmetry being positioned at axis hole 2 in end cap 1 is provided with the first holder 6, second holder 7, described first holder 6, second holder 7 all has fixing hole, locating rack 8 is provided with between described second holder 7 and axis hole 2, described locating rack 8 is inverted L-shaped structure, it is overheated that its interior installation has, the overload protective device 9 of excess current protective function, left end and first carbon brush component 3 of described overload protective device 9 are electrically connected, the positive pole 12 of its right-hand member and power supply is electrically connected, the negative pole 13 of described power supply and the second carbon brush component 4 are electrically connected, described end cap 1 between overload protective device 9 and the second carbon brush component 4 has the wire casing 10 being convenient to cabling.
During work, when motor to increase because of overload input circuit electric current or the motor feels hot and ambient temperature overheated overrate time, overload protective device 9 can automatic cut-off power, and motor is failure to actuate, and effectively protects motor.
When after failture evacuation, temperature drops to rated value, and when electric current is less than set point, overload protective device 9 again can closed circuit again, and motor again can regular event.
Above embodiment has just set forth general principle of the present utility model and characteristic; the utility model does not limit by above-described embodiment; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various change and change, and these changes and change all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. the end-cap assembly structure of a circuit breaker motor, comprise end cap, described end cap central place has axis hole, the left and right sides that its inside is positioned at axis hole is symmetrically arranged with the first carbon brush component, second carbon brush component, described carbon brush component contacts with epitrochanterian commutator, it is characterized in that: the front and back bilateral symmetry being positioned at axis hole in described end cap is provided with the first holder, second holder, locating rack is provided with between described second holder and axis hole, it is overheated that the interior installation of described locating rack has, the overload protective device of excess current protective function, one end and first carbon brush component of described overload protective device are electrically connected, first electrode of its other end and power supply is electrically connected, second electrode and second carbon brush component of described power supply are electrically connected.
2. the end-cap assembly structure of circuit breaker motor according to claim 1, is characterized in that: be provided with reference column in described end cap.
3. the end-cap assembly structure of circuit breaker motor according to claim 1, is characterized in that: described first holder, the second holder all have fixing hole.
4. the end-cap assembly structure of circuit breaker motor according to claim 1, is characterized in that: described locating rack is inverted L-shaped structure.
5. the end-cap assembly structure of circuit breaker motor according to claim 1, is characterized in that: described end cap between overload protective device and the second carbon brush component has wire casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520679812.3U CN204928488U (en) | 2015-09-02 | 2015-09-02 | End cover subassembly structure of motor for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520679812.3U CN204928488U (en) | 2015-09-02 | 2015-09-02 | End cover subassembly structure of motor for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204928488U true CN204928488U (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520679812.3U Active CN204928488U (en) | 2015-09-02 | 2015-09-02 | End cover subassembly structure of motor for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204928488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099086A (en) * | 2015-09-02 | 2015-11-25 | 无锡江南奕帆电力传动科技股份有限公司 | End cover component structure of motor for breaker |
-
2015
- 2015-09-02 CN CN201520679812.3U patent/CN204928488U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099086A (en) * | 2015-09-02 | 2015-11-25 | 无锡江南奕帆电力传动科技股份有限公司 | End cover component structure of motor for breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |