CN2521819Y - Dc brushless motor for dust collect - Google Patents
Dc brushless motor for dust collect Download PDFInfo
- Publication number
- CN2521819Y CN2521819Y CN01277106U CN01277106U CN2521819Y CN 2521819 Y CN2521819 Y CN 2521819Y CN 01277106 U CN01277106 U CN 01277106U CN 01277106 U CN01277106 U CN 01277106U CN 2521819 Y CN2521819 Y CN 2521819Y
- Authority
- CN
- China
- Prior art keywords
- motor
- circuit board
- control circuit
- utility
- model
- 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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- Brushless Motors (AREA)
Abstract
The utility model is a DC brushless motor of a dust collector, and is mainly characterized in that a control circuit board is fixed inside a motor shell, and a plurality of Hall elements are arranged at internals on the control circuit board; position sensors opposite to the Hall elements are fixed on a principal shaft of the motor. The the utility model has the advantages that the utility model reduces external parts of the dust collector, and saves the installation room, so the dimension of the whole motor system is shrunk, the structure becomes concise, and mechanical components and electric elements are integrated; moreover, a heat radiation device of the circuit board sucks the air through rotation of the motor to causes the air flow and take away the heat, which is beneficial for heat radiation; in addition, external wires like signal wires are turned into internal wires, which is not only convenient for installation, but also reduces the external wire loss rate to promote the machine operation quality.
Description
Technical field
The utility model belongs to motor, is a kind of dust catcher DC Brushless Motor.
Background technology
As everyone knows, dust catcher is all used high-speed motor.The high-speed motor that is used for dust catcher in the market generally all adopts the DC series excitation motor, because this motor adopts the brush structure, mechanically commutate, thereby there is a relative mechanical friction, bring deadly defects such as noise, spark, radio interference and life-span weak point thus, maintenance difficult, and, this power input to machine height, efficient is low.Because brushless DC motor had both possessed the series of advantages such as simple in structure, reliable, easy to maintenance of alternating current motor, possess many characteristics such as the operational efficiency height of DC motor, no excitation loss and good speed adjustment features again, so will use DC Brushless Motor gradually in the dust catcher.But existing dust catcher remains in many weak points with DC Brushless Motor, mainly be that control board is outlet structure, this makes motor drag line too many on the one hand, should extracting power supply cord, control line, also to draw Hall line as monitoring usefulness, influence operation and attractive in appearance, be that more electric current is big because of the motor speed height, make control board need outer increased area heating panel to reach radiating effect, need bigger installing space, limited further developing of dust catcher.
Summary of the invention
The purpose of this utility model provides a kind of improved dust catcher DC Brushless Motor, makes it to realize electromechanical integration, reduces lead-in wire, reduced volume, raising running quality.Major technique of the present utility model is conceived, and control circuit board is arranged in the electric machine casing, and Hall element is set directly on the control circuit board, makes it to become the class connector on the control circuit board.Concrete structure of the present utility model is, the same with general DC Brushless Motor also have motor housing, end cap, stator, rotor, control circuit board and a position transducer, in the utility model, control circuit board is fixed in the electric machine casing, and on this control circuit board, being interval with the polylith Hall element, the position transducer of this Hall element setting is fixed on the electric machine main shaft relatively.Structure is seen thus, and control circuit board is arranged in the electric machine casing, after Hall element directly is mounted on the control circuit board, reduced the external parts of dust catcher on the one hand, saved installing space, made whole electric system volume-diminished, compact conformation, mechanical, electrical member is realized integral structure; And the heat radiation of circuit board rotates by motor wind sucked, and causes air flows, takes away heat, helps heat radiation; Just like except that power line and control line, other is become internal wiring as external wiring such as holding wires again, both easy for installation, can reduce the outer probability of decreasing again, improve the machine running quality.
Description of drawings
Fig. 1 is a half sectional view of the present utility model.
Embodiment
A preferred embodiment of the present utility model as shown in drawings.See by figure, motor housing 3 cylindrical structures in the present embodiment, simplified shape motor housing 3 bottom centre are provided with a bearing 10, the left end of motor housing 3 is installed with electric motor end cap 1, this end cap 1 center also is provided with a bearing 2, electric machine main shaft 7 is erected on the two bearings 2,10, is fixed with a rotor 9 and a position transducer 6 on electric machine main shaft 7, and motor stator 8 is fixed on the inwall of motor housing 3 with one heart with rotor 9.Seen by figure, in the present embodiment control circuit board 4 is fixed on the inner face of electric motor end cap 1, and be connected with three Hall elements 5 thereon, its installation site is corresponding with position transducer 6, with the signal of accurate receiving sensor.
Claims (1)
1, a kind of dust catcher DC Brushless Motor, have motor housing, end cap, stator, rotor, control circuit board and a position transducer, it is characterized in that: control circuit board is fixed in the electric machine casing, and on this control circuit board, being interval with the polylith Hall element, the position transducer of this Hall element setting is fixed on the electric machine main shaft relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01277106U CN2521819Y (en) | 2001-12-27 | 2001-12-27 | Dc brushless motor for dust collect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01277106U CN2521819Y (en) | 2001-12-27 | 2001-12-27 | Dc brushless motor for dust collect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2521819Y true CN2521819Y (en) | 2002-11-20 |
Family
ID=33680979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01277106U Expired - Fee Related CN2521819Y (en) | 2001-12-27 | 2001-12-27 | Dc brushless motor for dust collect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2521819Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358456C (en) * | 2003-09-27 | 2008-01-02 | 乐金电子(天津)电器有限公司 | Heat radiation structure of vacuum cleaner |
| CN101317318B (en) * | 2006-02-21 | 2011-03-30 | 三菱电机株式会社 | Rotating electrical machine with built-in controller |
-
2001
- 2001-12-27 CN CN01277106U patent/CN2521819Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358456C (en) * | 2003-09-27 | 2008-01-02 | 乐金电子(天津)电器有限公司 | Heat radiation structure of vacuum cleaner |
| CN101317318B (en) * | 2006-02-21 | 2011-03-30 | 三菱电机株式会社 | Rotating electrical machine with built-in controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20021120 Termination date: 20100127 |