CN100435431C - Structure for arranging segments in use for collector in single-phase DC motor - Google Patents
Structure for arranging segments in use for collector in single-phase DC motor Download PDFInfo
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- CN100435431C CN100435431C CNB2003101073603A CN200310107360A CN100435431C CN 100435431 C CN100435431 C CN 100435431C CN B2003101073603 A CNB2003101073603 A CN B2003101073603A CN 200310107360 A CN200310107360 A CN 200310107360A CN 100435431 C CN100435431 C CN 100435431C
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- commutator
- brush
- commutator segments
- motor
- segments
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Abstract
The present invention relates to a structure for arranging commutator segments in single-phase DC motors. The present invention is characterized in that the present invention comprises a plurality of commmutator segments, a forming part and a shaft bush, wherein the commutator segments are manufactured by conductors, arranged in a radiation shape and kept contact with an electric brush. The forming part is manufactured by a method of forming and processing (molding), so all the commutator segments can be provided with a certain interval; the shaft bush is formed on the inner surface of the forming part by the method of clamping objects and moulding (insert molding). the commutator segments are slantwise installed by a certain angle in order to make the electric brush contact the commutator segments; the commutator segments are slantwise arranged in a direction. The present invention can make the electric brush of narrow width simultaneously contact the commutator segments to save the material cost needed by producing the electric brush, and thereby, the cost is reduced.
Description
Technical field
The present invention relates to the single-phase DC motor, relate in particular to its commutator.
Background technology
Fan-the motor of dust catcher (fan-motor) as depicted in figs. 1 and 2, the structure to it gives simple declaration below.
As shown in Figure 1, 2, in the fan-motor of existing dust catcher, stator (2) is fixed on the inside of the motor hood (motor housing) (1) of bottom opening, rotor (3) is equipped with in the inside of said stator (1), above-mentioned rotor (3) keeps certain interval with the inner surface of stator (2), and can keep this state rotation.The center of above-mentioned rotor (3) has rotating shaft (4) to be pressed into wherein.
In addition, the commutator (5) that the AC voltage commutation can be become dc voltage is equipped with in the upper end of above-mentioned rotor (3), and rotating shaft (4) can be pressed in this commutator (5).A pair of carbon brush (carbon brush) (6) is equipped with in the both sides of above-mentioned commutator (5), and carbon brush (6) keeps Elastic Contact with the outer surface of commutator (5), thereby can give commutator (5) energized.
In addition, hood lid (housing cover) (7) is equipped with in the bottom of above-mentioned motor hood (1), guide vane (guide vane) (8) is housed below this hood lid (7), the impeller (impeller) (9) that is used for sucking air is housed below the above-mentioned guide vane (8), and this impeller (9) is fixed on the rotating shaft (4), the following impeller lid (10) that connecting of above-mentioned impeller (9).
For the fan-motor of the existing dust catcher with said structure, if connect AC power on the coil of stator (2), the electric current that flows through the coil of stator (2) so will be switched on the commutator (5) by brush (6).The electric current that is switched to like this on the commutator (5) can become direct current by interchange after commutator (5) rectification, and then is pulled on the coil of rotor (3).The electric current that flows through the coil of rotor (3) can flow to the stator brush (6) on opposite and the coil of stator (2), flows to outside at last.When electric current flowed as described above, rotor (3) can rotate under the effect in the magnetic field that motor internal produced.
In addition, if rotor (3) begins rotation said as top, the impeller (9) that is connected so on the rotor (3) also can rotate, thereby produces inhalation power, and air is sucked.The dust catcher that therefore aforesaid fan-motor is housed can also suck dust when sucking air as described above.
Shown in Fig. 3,4,5, existing commutator (5) has following structure, several commutator segments made from conductor (21) are radial arrangement, and keep insulation between above-mentioned each commutator segment (21) in order to make, and have also formed the forming part (22) of drum.In addition, can be pressed in order to make rotating shaft (4), on the inner surface of above-mentioned forming part (22) also the method by insert molding (insert molding) formed axle bush (busing) (23).
In addition, the brush (6) of contact on the outer surface with the commutator of said structure (5) always contacts with 3 commutator segments (21) of vertical arrangement.
But, for the single-phase DC motor of the fan-motor of existing dust catcher with said structure with commutator, in order to improve current efficiency, always need 3 commutator segments (21) and contact with brush (6), brush (6) need possess the width (L) that can be simultaneously contacts simultaneously with 3 commutator segments (21) for this reason.So will bring following problem:, therefore have certain limitation aspect the reduction manufacturing cost because it is higher to make the required fee of material of brush (6).
Summary of the invention
In order to overcome the above-mentioned shortcoming that prior art exists, the invention provides the commutator segment arrangement architecture of a kind of single-phase DC motor with commutator, it can make the narrower brush of width contact with several commutator segments simultaneously, makes the required fee of material of brush to save, thereby reduces cost.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of single-phase DC motor commutator segment arrangement architecture of commutator, comprise several commutator segments, forming part, axle bush, several commutator segments are made with conductor, being radiation shape arranges, brush and commutator segment outer surface keep Elastic Contact, forming part is to make by the method for processing and forming (molding), each commutator segment is arranged at a distance of certain intervals ground, axle bush is that the method by insert molding (insertmolding) forms on the inner surface of forming part, so that rotating shaft is pressed into, in order to make this brush always keep contacting with three commutator segments, each commutator segment is to keep insulating and installing towards a direction inclination certain angle ground, commutator segment is towards a direction oblique arrangement, so that the width of brush is narrower.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 partly cuts open figure for the fan-motor of the dust catcher of existing single-phase DC motor
Fig. 2 is the exploded view of Fig. 1
Fig. 3 is the stereogram of brush and the contacted state of existing commutator
Fig. 4 is the longitdinal cross-section diagram of existing commutator
Fig. 5 is the front elevation of brush and the contacted state of existing commutator
Fig. 6 partly cuts open figure for the fan-motor of the single-phase DC motor of commutator segment arrangement architecture of the present invention
Fig. 7 is the exploded view of Fig. 6
Fig. 8 is the front elevation of the commutator segment arrangement architecture of commutator of the present invention
Fig. 9 is the front elevation of brush and the contacted state of commutator of the present invention
The number in the figure explanation:
106: brush (brush) 111: commutator segment
112: moulding (molding) portion 113: axle bush (bushing)
Embodiment
Shown in Fig. 6,7,8, the internal fixation of motor hood (101) stator (102), and rotatable rotor (103) is equipped with in the inside of said stator (102), and the center of above-mentioned rotor (103) has rotating shaft (104) to be pressed into wherein.
In addition, commutator (105) is equipped with in the upper end of above-mentioned rotor (103), and rotating shaft (104) can be pressed in this commutator (105).A pair of carbon brush (carbon brush) (106) is equipped with in the both sides of above-mentioned commutator (105), and above-mentioned carbon brush (106) keeps Elastic Contact with the outer surface of commutator (105).Following hood lid (107), guide vane (108), impeller (109), the impeller lid (110) of being equipped with successively of above-mentioned motor hood (101).
In addition, above-mentioned commutator (105) has following structure: several commutator segments made from conductor (111) are radial arrangement, and keep insulation between each commutator segment (111) in order to make, under the state that above-mentioned commutator (111) is arranged with above-mentioned form, the method by processing and forming (molding) has formed forming part (112).In addition, can be pressed in order to make rotating shaft (104), on the inner surface of above-mentioned forming part (22) also the method by insert molding (insert molding) formed axle bush (busing) (not shown).
In addition, contact with the commutator segment (111) of more a plurality of numbers in order to make brush (106), above-mentioned commutator segment (111) is installed towards a direction inclination certain angle ground.
Even that is to say that the width (L ') of brush (106) is narrower, but because each commutator (111) is to tilt to install, therefore can be as the brush (6) of installation width of the prior art (L) broad, brush (106) can always keep in touch with 3 commutator segments (111), thereby gives commutator segment (111) energized.
Hook (hook) portion of unaccounted symbol 111a for being connected with the coil of rotor.
For fan-motor that the commutator of the present invention that possesses said structure is housed, if connect AC power on the coil of stator (102), the electric current that flows through the coil of stator (102) so will be switched on the commutator (105) by brush (106).The electric current that is switched to like this on the commutator (105) can become direct current by interchange after commutator (105) rectification, and then is pulled on the coil of rotor (103).The electric current that flows through the coil of rotor (103) can flow to the outside again by the stator brush (106) on opposite and the coil of stator (102).When electric current flowed as described above, rotor (103) can rotate under the effect in the magnetic field that motor internal produced.
As shown in Figure 9, as described above with commutator (105) thus outer surface contact making current brush (106) since the commutator segment (111) of commutator (105) install obliquely, therefore even the width of brush (106) (L ') is narrower, it also can always keep and the contacted state of 3 commutator segments (111), thereby play the effect of energized, therefore can reduce and make the required manufacturing cost of brush (106).
The effect of invention
Describe in detail as top, because single-phase DC motor of the present invention is used the whole of commutator Flow sub-sheet arrangement architecture and have following characteristics: in that radial arrangement, that make with conductor each is whole being Flow the method for sub-sheet by processing and forming (molding) when making their keep insulation, above-mentioned respectively Individual commutator inclination certain angle ground is arranged, even thereby therefore keep in touch plugged with commutator segment The width of brush littler, but because commutator segment is to tilt to install, thus brush can keep with Plugged under the contacted state of a plurality of commutator segments. Therefore the present invention can reach following effect: energy The required expense of brush is made in enough minimizings, thereby reduces the manufacturing cost of motor.
Claims (1)
1, a kind of single-phase DC motor commutator segment arrangement architecture of commutator, comprise several commutator segments, forming part, axle bush, several commutator segments are made with conductor, being radiation shape arranges, brush and commutator segment outer surface keep Elastic Contact, forming part is to make by the method for processing and forming, each commutator segment is arranged at a distance of certain intervals ground, axle bush is that the method by insert molding forms on the inner surface of forming part, so that rotating shaft is pressed into, it is characterized in that: always keep contacting with three commutator segments (111) in order to make described brush (106), each commutator segment (111) keeps insulation and installs towards a direction inclination certain angle ground, commutator segment (111) is towards a direction oblique arrangement, so that the width of brush (106) (L ') narrower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101073603A CN100435431C (en) | 2003-12-12 | 2003-12-12 | Structure for arranging segments in use for collector in single-phase DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101073603A CN100435431C (en) | 2003-12-12 | 2003-12-12 | Structure for arranging segments in use for collector in single-phase DC motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1627574A CN1627574A (en) | 2005-06-15 |
| CN100435431C true CN100435431C (en) | 2008-11-19 |
Family
ID=34758164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101073603A Expired - Fee Related CN100435431C (en) | 2003-12-12 | 2003-12-12 | Structure for arranging segments in use for collector in single-phase DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100435431C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01248941A (en) * | 1988-03-28 | 1989-10-04 | Matsushita Electric Works Ltd | Motor having commutator mechanism |
| GB2256753A (en) * | 1991-06-10 | 1992-12-16 | Tse Tak Tung | Roller brushes for an electric motor |
| US5910696A (en) * | 1997-12-01 | 1999-06-08 | Ut Automotive Dearborn, Inc. | Reduced noise commutator system |
| JPH11218125A (en) * | 1998-01-30 | 1999-08-10 | Sankyo Seiki Mfg Co Ltd | Dynamic pressure bearing device and manufacture thereof |
| CN2346093Y (en) * | 1998-11-17 | 1999-10-27 | 上海舒航汽车电器有限公司 | Chute commutator |
| US6288468B1 (en) * | 1996-08-07 | 2001-09-11 | Robert Bosch Gmbh | Direct current motor commutation device |
-
2003
- 2003-12-12 CN CNB2003101073603A patent/CN100435431C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01248941A (en) * | 1988-03-28 | 1989-10-04 | Matsushita Electric Works Ltd | Motor having commutator mechanism |
| GB2256753A (en) * | 1991-06-10 | 1992-12-16 | Tse Tak Tung | Roller brushes for an electric motor |
| US6288468B1 (en) * | 1996-08-07 | 2001-09-11 | Robert Bosch Gmbh | Direct current motor commutation device |
| US5910696A (en) * | 1997-12-01 | 1999-06-08 | Ut Automotive Dearborn, Inc. | Reduced noise commutator system |
| JPH11218125A (en) * | 1998-01-30 | 1999-08-10 | Sankyo Seiki Mfg Co Ltd | Dynamic pressure bearing device and manufacture thereof |
| CN2346093Y (en) * | 1998-11-17 | 1999-10-27 | 上海舒航汽车电器有限公司 | Chute commutator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1627574A (en) | 2005-06-15 |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20081119 Termination date: 20100112 |