CN100424943C - Commutator rectifier insulating device of motor - Google Patents
Commutator rectifier insulating device of motor Download PDFInfo
- Publication number
- CN100424943C CN100424943C CNB2004100194272A CN200410019427A CN100424943C CN 100424943 C CN100424943 C CN 100424943C CN B2004100194272 A CNB2004100194272 A CN B2004100194272A CN 200410019427 A CN200410019427 A CN 200410019427A CN 100424943 C CN100424943 C CN 100424943C
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- Prior art keywords
- rectifier
- commutator
- casing
- rotating shaft
- bearing
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Abstract
The present invention mainly states the technology which relates to a isolator of a commutator rectifier in a motor. The main structure of the motor in the present invention is composed of a rotating shaft, a bearing, a commutator rectifier and a membrane, wherein the rotating shaft can rotate along with the interaction of a stator and a rotor and is fixed in a casing; the bearing supports ends on both sides of the rotating shaft so that the rotating shaft can rotate; the commutator rectifier is arranged on the rotating shaft and orderly changes the alternating current voltage of received current into direct current voltage so that the rotor can rotate along a certain direction at any place; the membrane keeps the insulation state between the commutator rectifier and the casing, simultaneously prevents dust from entering the bearing, and is arranged between the commutator rectifier and the casing. Thus, the insulation state between the commutator rectifier and the casing is ensured, dust is prevented from entering the bearing, and the service life of the bearing is prolonged.
Description
Technical field
The invention belongs to commutator-rectifier technology in the motor, particularly relate to and prevent from when a kind of barrier film that is arranged between commutator-rectifier and the casing is keeping state of insulation between commutator-rectifier and the casing to enter into seal in the bearing at the dust that the commutator-rectifier running is taken place.
Background technology
In general in direct current machine for continuous rotation, adopt commutator-rectifier, the effect of commutator-rectifier is exactly that the electric current of receiving is changed successively, makes rotor can be rotated with certain direction in any position.
Be connected with monophase machine dust catcher fan electromotor as depicted in figs. 1 and 2, describe below.
Fig. 1 is the part sectional drawing that is provided with the fan electromotor in the middle of the dust catcher of monophase machine in the past, Fig. 2 is the exploded view of fan electromotor shown in Figure 1, as shown in the figure, stator (2) is being fixed in the inboard that below the fan electromotor of dust catcher in the past is casing (1) that the inner space of opening is arranged, the inboard of stator (2) is provided with and the inner peripheral surface of stator (2) is being kept certain distance, the rotor that can be rotated (3), and the central part of its rotor (3) is inserted with rotating shaft (4), bearing (11) is being set on the both side ends of rotating shaft (4), its bearing is fixing by casing (1) and guiding fan sheet (8), makes rotating shaft (4) be rotated.
And, being provided with the AC voltage transitions that will supply with rotating shaft (4) at the upside of rotor (3) is that the commutator-rectifier (5) of dc voltage is arranged on below the bearing (11), and the both sides of its commutator-rectifier (5) are provided with the flexible pair of electrodes (6) and rotating shaft (4) vertical direction of power supply being provided for commutator-rectifier (5) of contacting in the outside of commutator-rectifier (5) and are forming.
Also have, the downside of the casing of motor (1) is being fixed the bearing (11) that guiding fan sheet (8) fixes supporting rotating shaft (4), fixedly installing the fan (9) of introducing air on the rotating shaft (4) below guiding fan sheet (8), and fan (9) below in conjunction with fan cover (10).
So on the coil of the stator of the fan electromotor of dust catcher in the past (2) time by alternating current, electric current on stator (2) coil supplies to above the commutator-rectifier (5) by electrode (6), flowing to electric current above the commutator-rectifier (5) goes up at commutator-rectifier (5) and is become by interchange on the coil that direct current supplies to rotor (3), and the electric current of stream on rotor (3) coil flows to the outside by opposite stator electrode (6) and stator (2) coil, so the magnetic field that is produced when flowing through by electric current is rotated rotor (3).
Also have, rotor (3) when beginning to rotate and the fan (9) that links together of rotor (3) begin rotating the generation attraction air sucked from the outside, be provided with thus that dust and inhaled air have been sucked into together in the middle of the dust catcher of fan electromotor.
But, as constituted above in the fan electromotor, be that commutator-rectifier (5) is rotated under the contiguous state of electrode (6) as shown in Figure 3, so the friction on the surface of commutator-rectifier (5) and electrode (6) will produce dust, and the dust that enters will touch the life-span that bearing (11) directly influences bearing (11).Just can guarantee to avoid dust to enter between commutator-rectifier (5) and the casing (1) so maintain a certain distance; also have, in order to prevent the problem that words that the spacing between a commutator-rectifier (5) and the casing (1) reduces will be destroyed the state of insulation between commutator-rectifier (5) and the casing (1) that enters of dust.
Summary of the invention
The present invention provides a kind of insulation of guaranteeing between commutator-rectifier and the casing for solving the technical problem that exists in the above-mentioned technology, prevents that simultaneously the dust that is taken place in the commutator-rectifier rotation from entering into the commutator-rectifier seal of bearing the inside.
The technical scheme that the present invention takes for the technical problem that exists in the above-mentioned technology of solution is:
Motor commutation rectifier seal among the present invention, comprise the rotating shaft that rotates and be fixed on casing inside with the interaction of stator and rotor, the bearing that the both side ends of supporting rotating shaft is rotated rotating shaft, be arranged on the rotating shaft the electric current of receiving successively alternating voltage is changed into the commutator-rectifier that direct voltage makes that rotor can certain direction on any position be rotated, the barrier film that is arranged between commutator-rectifier and the casing that is keeping state of insulation between commutator-rectifier and the casing to prevent that simultaneously dust from entering into bearing constitutes.Barrier film is to expand with the contacted end face than commutator-rectifier of casing, is formed on above the end of commutator-rectifier.Barrier film is made of the phenolic resin that can seal commutator-rectifier.For barrier film is contacted with commutator-rectifier, also can there be certain height giving prominence to from casing, and along with the outer peripheral face of commutator-rectifier prolongs formation.
Advantage and good effect that the present invention has are: the commutator-rectifier seal of motor is to keep state of insulation between commutator-rectifier and the casing forming barrier film between commutator-rectifier and the casing, prevent simultaneously when commutator-rectifier is rotated that the dust that takes place and dust etc. enter into inside the bearing, thereby the life-span that has prolonged bearing has also been improved the reliability of product.
Description of drawings
Fig. 1 is the part sectional drawing that is provided with the fan electromotor in the middle of the dust catcher of monophase machine in the past.
Fig. 2 is the exploded view of fan electromotor shown in Figure 1.
Fig. 3 is the part amplification profile diagram of the installation portion of commutator-rectifier shown in Figure 1.
Fig. 4 is the part sectional drawing that is provided with the motor of commutator-rectifier seal among the present invention.
Fig. 5 is the amplification profile diagram of the commutator-rectifier seal shown in Fig. 4.
Fig. 6 is the amplification profile diagram of the commutator-rectifier seal of another kind of motor among the present invention.
The explanation of main symbol
1: casing 2: stator
3: rotor 4: rotating shaft
5: commutator-rectifier 6: electrode
11: bearing 21,31: barrier film
Embodiment
For further understanding content of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
Below the seal of the commutator-rectifier of the motor among the present invention is described in detail with reference to drawing, also adopt the same symbol to describe with consistent in the past part.
Fig. 4 is the part sectional drawing that is provided with the motor of commutator-rectifier seal among the present invention, Fig. 5 is the amplification profile diagram of the commutator-rectifier seal shown in Fig. 4, as shown in the figure, stator (2) is being fixed in the inboard that below the fan electromotor of dust catcher is casing (1) that the inner space of opening is arranged, and the inboard of stator (2) be provided with rotor (3) and and the inner peripheral surface of stator (2) keeping certain distance and can be rotated and be provided with, the central part of its rotor (3) is inserting rotating shaft (4), bearing (11) is being set on the both side ends of rotating shaft (4), its bearing is fixing by casing (1) and guiding fan sheet (8), and rotating shaft (4) is rotated.
At the upside of rotor (3) the AC voltage transitions that will supply to rotating shaft (4) being arranged is that the commutator-rectifier (5) of dc voltage is arranged on below the bearing (11), and the both sides of its commutator-rectifier (5) are provided with the flexible pair of electrodes (6) and rotating shaft (4) vertical direction of power supply being provided for commutator-rectifier (5) of contacting in the outside of commutator-rectifier (5) and are forming.
Upside end face at commutator-rectifier (5), promptly be provided with on the end face part of bearing (11) direction and casing (1) is close, have than the end face of commutator-rectifier (5) more the barrier film of large end face (21) forming, barrier film this moment (21) is that the resin expansion by sealing commutator-rectifier (5) forms.
The downside of the casing of motor (1) is being fixed the bearing (11) that guiding fan sheet (8) fixes supporting rotating shaft (4), and below guiding fan sheet (8), fixedly installing the fan (9) of introducing air on the rotating shaft (4), and fan (9) below in conjunction with fan cover (10).
When introducing alternating current on stator (2) coil of the fan electromotor of dust catcher, the electric current of stream on stator (2) coil supplies to above the commutator-rectifier (5) by electrode (6), so flowing to electric current above the commutator-rectifier (5) goes up at commutator-rectifier (5) and is become by interchange on the coil that direct current supplies to rotor (3), the electric current of stream on rotor (3) coil flows to the outside by opposite stator electrode (6) and stator (2) coil, and the magnetic field that is produced when flowing through by electric current makes rotor (3) be rotated the running dust catcher air and dust are sucked.
Commutator-rectifier (5) rotation under the situation that electrode (6) is connecting, even taken place dust and dust also because commutator-rectifier (5) upside end face on barrier film (21) and casing (1) state of contact under be rotated, kept the state of insulation between commutator-rectifier (5) and the casing (1), prevented that simultaneously electrode dust and dust from entering into bearing (11) one sides.
Fig. 6 is the amplification profile diagram of the commutator-rectifier seal of another kind of motor among the present invention, as shown in the figure, the upside handlebar AC voltage transitions of rotor (3) is that dc voltage is given rotating shaft (4), the commutator-rectifier of supplying electric current (5) be arranged on bearing (11) below, the both sides of its commutator-rectifier (5) are provided with the flexible pair of electrodes (6) and rotating shaft (4) vertical direction of power supply being provided for commutator-rectifier (5) of contacting in the outside of commutator-rectifier (5) and are forming.
Go up to give prominence to contact commutator-rectifier (5) and to prolong along the outer peripheral face of commutator-rectifier (5) with certain height at casing (1) and forming barrier film (31), this barrier film (31) is to be made of insulating material.
As above-mentioned another kind of motor commutation rectifier of the present invention (5) seal is that commutator-rectifier (5) is rotated and when producing dust or dust under the contiguous situation of electrode (6), because of being rotated under upward outstanding barrier film (21) that forms of casing (1) and the contacted state of commutator-rectifier (5), so the state of insulation of not only having kept between commutator-rectifier (5) and the casing (1) has prevented that simultaneously the electrode dust from entering into the situation of bearing (11) one sides.
The commutator-rectifier seal of the motor among the present invention is to have formed barrier film (21 between commutator-rectifier (5) and casing (1), 31) keep state of insulation between commutator-rectifier (5) and the casing (1), prevented that simultaneously dust that commutator-rectifier (5) takes place when being rotated and dust etc. from entering into the problem inside the bearing.
Claims (3)
1. motor commutation rectifier seal, comprise the rotating shaft that rotates and be fixed on casing inside with the interaction of stator and rotor, the bearing that the both side ends of supporting rotating shaft is rotated rotating shaft, be arranged on the rotating shaft and convert alternating current to direct current, the commutator-rectifier that makes rotor all be rotated with certain direction on any position constitutes; It is characterized in that, prevent simultaneously that at the state of insulation that is provided with between commutator-rectifier and the casing between maintenance commutator-rectifier and the casing dust from entering into the barrier film of bearing; Barrier film is to expand with the contacted end face than commutator-rectifier of casing, is formed on above the end of commutator-rectifier.
2. motor commutation rectifier seal according to claim 1 is characterized in that, contacts with commutator-rectifier in order to make barrier film, and barrier film certain height from the casing is being given prominence to, and prolongs along the outer peripheral face of commutator-rectifier and to constitute.
3. motor commutation rectifier seal according to claim 1 and 2 is characterized in that barrier film is made of the phenolic resin that can seal commutator-rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100194272A CN100424943C (en) | 2004-05-27 | 2004-05-27 | Commutator rectifier insulating device of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100194272A CN100424943C (en) | 2004-05-27 | 2004-05-27 | Commutator rectifier insulating device of motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1705173A CN1705173A (en) | 2005-12-07 |
| CN100424943C true CN100424943C (en) | 2008-10-08 |
Family
ID=35577579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100194272A Expired - Fee Related CN100424943C (en) | 2004-05-27 | 2004-05-27 | Commutator rectifier insulating device of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100424943C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051141A (en) * | 2013-01-14 | 2013-04-17 | 胡刚 | Brushless electric machine for dust collector |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88203363U (en) * | 1988-02-12 | 1988-11-09 | 李凯 | Movable explosion-proof surface structure with self-lubrication |
| JPH01231639A (en) * | 1987-11-10 | 1989-09-14 | Toshiba Corp | Commutator unit |
| CN2138853Y (en) * | 1992-10-19 | 1993-07-21 | 陈元祥 | Anti-dust, vibration-proof cushion cover of motor |
| JPH09308177A (en) * | 1996-05-20 | 1997-11-28 | Tec Corp | Motor-driven blower |
| CN1340886A (en) * | 2000-08-24 | 2002-03-20 | 希尔蒂股份公司 | Universal motor for hand-tool |
| US20030080647A1 (en) * | 2001-10-29 | 2003-05-01 | Mitsubishi Denki Kabushiki Kaisha | Rotary electric machine and a method of producing the same |
| CN1420603A (en) * | 2001-11-19 | 2003-05-28 | 乐金电子(天津)电器有限公司 | Motor for vacuum cleaner |
| JP2003274610A (en) * | 2002-03-18 | 2003-09-26 | Toshiba Tec Corp | Motor |
| CN1462093A (en) * | 2002-05-31 | 2003-12-17 | 乐金电子(天津)电器有限公司 | Universal motor for vacuum cleaner |
-
2004
- 2004-05-27 CN CNB2004100194272A patent/CN100424943C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01231639A (en) * | 1987-11-10 | 1989-09-14 | Toshiba Corp | Commutator unit |
| CN88203363U (en) * | 1988-02-12 | 1988-11-09 | 李凯 | Movable explosion-proof surface structure with self-lubrication |
| CN2138853Y (en) * | 1992-10-19 | 1993-07-21 | 陈元祥 | Anti-dust, vibration-proof cushion cover of motor |
| JPH09308177A (en) * | 1996-05-20 | 1997-11-28 | Tec Corp | Motor-driven blower |
| CN1340886A (en) * | 2000-08-24 | 2002-03-20 | 希尔蒂股份公司 | Universal motor for hand-tool |
| US20030080647A1 (en) * | 2001-10-29 | 2003-05-01 | Mitsubishi Denki Kabushiki Kaisha | Rotary electric machine and a method of producing the same |
| CN1420603A (en) * | 2001-11-19 | 2003-05-28 | 乐金电子(天津)电器有限公司 | Motor for vacuum cleaner |
| JP2003274610A (en) * | 2002-03-18 | 2003-09-26 | Toshiba Tec Corp | Motor |
| CN1462093A (en) * | 2002-05-31 | 2003-12-17 | 乐金电子(天津)电器有限公司 | Universal motor for vacuum cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1705173A (en) | 2005-12-07 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20081008 |