CN204103726U - A kind of electromagnetic compatibility permanent magnetic DC motor - Google Patents
A kind of electromagnetic compatibility permanent magnetic DC motor Download PDFInfo
- Publication number
- CN204103726U CN204103726U CN201420535044.XU CN201420535044U CN204103726U CN 204103726 U CN204103726 U CN 204103726U CN 201420535044 U CN201420535044 U CN 201420535044U CN 204103726 U CN204103726 U CN 204103726U
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- CN
- China
- Prior art keywords
- middle cover
- carbon
- inductance
- brush pot
- motor
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- Expired - Fee Related
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- Dc Machiner (AREA)
Abstract
The utility model discloses a kind of electromagnetic compatibility permanent magnetic DC motor, relate to technical field of motors; It comprises middle cover, the middle part of middle cover has a manhole, symmetrical terminal is fixed with bottom described middle cover, the manhole of described middle cover is monosymmetric is provided with brush pot, carbon is provided with in this brush pot, cover in described and be also fixed with circuit board and inductance, one end of described terminal and inductance is all welded on described circuit board, and the carbon in the other end of inductance and brush pot is electrically connected; The beneficial effects of the utility model are: avoid because vibration etc. causes clamping defect loosely, adopt board structure of circuit processing technology simple, can realize automated production.
Description
[technical field]
The utility model relates to a kind of motor, particularly relates to a kind of electromagnetic compatibility permanent magnetic DC motor.
[background technology]
Existing permanent magnet direct current motor can be divided into permanent-magnet brushless DC electric machine and permanent magnet brush direct current machine according to there being brushless, wherein, the stator of permanent magnet brush direct current machine is provided with fixing main pole and brush, rotor is provided with armature winding and commutator.The electric energy of DC power supply enters armature winding by brush and commutator, produces armature supply, and the magnetic field that armature supply produces and main field interact and produce electromagnetic torque, make motor rotarily drive load.
In many occasions, in order to meet the requirement of electromagnetic compatibility, often by connecing some electric capacity or inductance again to improve the Electro Magnetic Compatibility of DC motor on motor ground power terminals.But, after these components and parts add, usually need wire to connect, therefore often can cause poor wire connection due to vibration.In addition, generally all adopt brush arm structure, this structure along with carbon brush abrasion movement locus be camber line, what such carbon brush and commutator contact position occurred slightly change is electric phase place becomes and then affects motor electrical characteristic.
[utility model content]
The purpose of this utility model is the deficiency effectively overcoming above-mentioned technology, provides a kind of electromagnetic compatibility permanent magnetic DC motor, can avoid because the reasons such as vibration cause clamping defect loosely.
The technical solution of the utility model is achieved in that it comprises middle cover, the middle part of middle cover has a manhole, symmetrical terminal is fixed with bottom described middle cover, its improvements are: the manhole of described middle cover is monosymmetric is provided with brush pot, carbon is provided with in this brush pot, cover in described and be also fixed with circuit board and inductance, one end of described terminal and inductance is all welded on described circuit board, and the carbon in the other end of inductance and brush pot is electrically connected.
In such a configuration, in described middle cover, be also provided with fixed leg, this fixed leg is wound with spring, and brush pot inside can be stretched in one end of spring, and top is pressed on described carbon, is released in the direction of carbon to manhole.
In such a configuration, described brush pot top is provided with a screens, and when carbon is not installed, one end of described spring then snaps in described screens.
In such a configuration, that goes back correspondence in described middle cover is provided with two electric capacity, and one end of electric capacity is electrically connected on terminal, and the other end is connected on motor housing.
The beneficial effects of the utility model are: the utility model is by above-mentioned structure, snap fit is adopted to change the mode of welding circuit board in the lead-in wire of original structure inductance and terminal, avoid because vibration etc. causes clamping defect loosely, and adopt board structure of circuit processing technology simple, can automated production be realized; Original structure is only applicable to inductance and the capacitance leading wire of fixing several wire diameter, and wire diameter is crossed kilocalorie and do not passed in and out, and wire diameter is too thin with card incessantly; New construction of the present utility model can adapt to inductance and the capacitance leading wire of all wire diameters; In addition, after replacing brush arm structure by brush pot structure, carbon brush is rectilinear motion from start to finish, and carbon brush and commutator contact position are constant i.e. electric phase invariants.
[accompanying drawing explanation]
Fig. 1 is front view of the present utility model;
Fig. 2 is the end view of Fig. 1.
[embodiment]
Below in conjunction with drawings and Examples, the utility model will be further described.
With reference to shown in Fig. 1, a kind of electromagnetic compatibility permanent magnetic DC motor that the utility model discloses, specifically, shown in composition graphs 1, Fig. 2, this electromagnetic compatibility permanent magnetic DC motor comprises middle cover 10, and the middle part of middle cover 10 has a manhole 101, is fixed with symmetrical terminal 102 bottom middle cover 10.
Further, the manhole 101 of middle cover 10 is monosymmetric is provided with brush pot 20, carbon 201 is provided with in this brush pot 20, described middle cover 10 is also fixed with circuit board 30 and inductance 40, one end of described terminal 103 and inductance 40 is all welded on described circuit board 30, and the carbon 201 in the other end of inductance 40 and brush pot 20 is electrically connected.
Further, in middle cover 10, be also provided with fixed leg 50, this fixed leg 50 is wound with spring 501, and brush pot 20 inside can be stretched in one end of spring 501, and top is pressed on described carbon 201, is released in the direction of carbon 201 to manhole 101.In addition, described brush pot 20 top is provided with a screens 202, and when carbon 201 is not installed, one end of described spring 501 then snaps in described screens 202.That goes back correspondence in middle cover 10 is provided with two electric capacity (invisible in figure), and one end of electric capacity is electrically connected on terminal 103, and the other end is connected on motor housing.
The utility model is by above-mentioned structure, snap fit is adopted to change the mode of welding circuit board in the lead-in wire of original structure inductance and terminal, avoid because vibration etc. causes clamping defect loosely, and adopt board structure of circuit processing technology simple, can automated production be realized.Original structure is only applicable to inductance and the capacitance leading wire of fixing several wire diameter, and wire diameter is crossed kilocalorie and do not passed in and out, and wire diameter is too thin with card incessantly; New construction of the present utility model can adapt to inductance and the capacitance leading wire of all wire diameters.In addition, after replacing brush arm structure by brush pot structure, carbon brush is rectilinear motion from start to finish, and carbon brush and commutator contact position are constant i.e. electric phase invariants.
Described above is only preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to restriction of the present utility model.In technological thought category of the present utility model, can occur various distortion and amendment, all those of ordinary skill in the art, according to describing retouching, the amendment made above or equivalent replacing, all belong to the scope that the utility model is protected.
Claims (4)
1. an electromagnetic compatibility permanent magnetic DC motor, it comprises middle cover, the middle part of middle cover has a manhole, symmetrical terminal is fixed with bottom described middle cover, it is characterized in that: the manhole of described middle cover is monosymmetric is provided with brush pot, is provided with carbon in this brush pot, covers and be also fixed with circuit board and inductance in described, one end of described terminal and inductance is all welded on described circuit board, and the carbon in the other end of inductance and brush pot is electrically connected.
2. a kind of electromagnetic compatibility permanent magnetic DC motor according to claim 1, it is characterized in that: in described middle cover, be also provided with fixed leg, this fixed leg is wound with spring, and brush pot inside can be stretched in one end of spring, and top is pressed on described carbon, is released in the direction of carbon to manhole.
3. a kind of electromagnetic compatibility permanent magnetic DC motor according to claim 2, is characterized in that: described brush pot top is provided with a screens, and when carbon is not installed, one end of described spring then snaps in described screens.
4. a kind of electromagnetic compatibility permanent magnetic DC motor according to claim 1, is characterized in that: that goes back correspondence in described middle cover is provided with two electric capacity, and one end of electric capacity is electrically connected on terminal, and the other end is connected on motor housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535044.XU CN204103726U (en) | 2014-09-17 | 2014-09-17 | A kind of electromagnetic compatibility permanent magnetic DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420535044.XU CN204103726U (en) | 2014-09-17 | 2014-09-17 | A kind of electromagnetic compatibility permanent magnetic DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204103726U true CN204103726U (en) | 2015-01-14 |
Family
ID=52272126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420535044.XU Expired - Fee Related CN204103726U (en) | 2014-09-17 | 2014-09-17 | A kind of electromagnetic compatibility permanent magnetic DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204103726U (en) |
-
2014
- 2014-09-17 CN CN201420535044.XU patent/CN204103726U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20200917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |