CN102280984B - Direct current motor for cooling fan of automobile engine - Google Patents
Direct current motor for cooling fan of automobile engine Download PDFInfo
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- CN102280984B CN102280984B CN 201110229481 CN201110229481A CN102280984B CN 102280984 B CN102280984 B CN 102280984B CN 201110229481 CN201110229481 CN 201110229481 CN 201110229481 A CN201110229481 A CN 201110229481A CN 102280984 B CN102280984 B CN 102280984B
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Abstract
The invention discloses a direct current motor for a cooling fan of an automobile engine, which comprises a stator and a rotor with a commutator, wherein the stator comprises a baseframe, steel magnets fixed on the baseframe and an electric brush component which is mounted on the baseframe and matched with the commutator, the number of the steel magnets is six, the six steel magnets are circumferentially uniformly arranged on the inner wall of the baseframe, the rotor comprises a rotor shaft which is mounted on the baseframe in a rotating manner and an armature iron core fixed on the rotor shaft, the number of slots of the armature iron core is 10, the number of commutator segments of the commutator is 20, the electric brush component comprises six electric brushes matched with the commutator, the electric brushes are circumferentially uniformly arranged at intervals of 60 degrees, and an armature winding is wound on the armature iron core through the way of combining wave winding with lap winding. Compared with the ordinary motor in the same volume, the direct current motor is high in power; furthermore, the structure is simplified and the production cost is saved.
Description
Technical field
The present invention relates to a kind of direct current machine, refer to especially a kind of direct current motor for cooling fan of automobile engine.
Background technology
Engine-cooling system mainly adopts the direct current machine drives fan wheel to dispel the heat at present, but due to the automobile front chamber spatial limitation, thereby the heat dissipation capacity of the cooling fan of demand is large, thereby cause power of motor large, and the narrow and small volume of motor that causes in space can not be excessive, and this just consists of the paradox that the motor volume requirement is little and power requirement is large.And the commutator segment number that the direct current machine of present traditional cooling fan the uses structure identical with armature core groove number, when being slotted, armature core can be left many waste materials, the production of armature core causes the waste with waste material, the utilance of iron is bad, has caused the production cost of direct current machine higher.
Summary of the invention
Technical problem to be solved by this invention is: a kind of direct current motor for cooling fan of automobile engine is provided, and this direct current machine is larger than the power of the common electric machine of equal volume, and simplifies the structure, and has saved production cost.
for solving the problems of the technologies described above, technical scheme of the present invention is: a kind of direct current motor for cooling fan of automobile engine, comprise stator and with the rotor of commutator, described stator comprises support, be fixed in the magnet steel on support and be installed on the brush assembly of electric that is used in conjunction with described commutator on support, between rear end cap and support, riveted joint is fixing, the number of described magnet steel is six, described six magnet steel circumferentially are evenly arranged in inboard wall of base, described rotor comprises the armature spindle that is rotatably installed on support and the armature core that is fixed on armature spindle, the groove number of described armature core is 10, the number of segment of described commutator is 20, described brush assembly of electric comprises brush rack plate and six brushes that coordinate with commutator, between described brush circumferentially 60 °, interval be evenly arranged, be wound with armature winding by ripple around the mode that combines with lap wound on described armature core, brace is fixed on brush rack plate, described brush rack plate is positioned at the junction of support and rear end cap, brush box is anchored on brush rack plate, spring is positioned at the chamber of brush box, brush is placed in the brush box cavity and is connected by spot welding with brace, the EMC element is installed in described direct current machine, described EMC element and brace welding.。
As a kind of preferred scheme, described support is provided with louvre.
As a kind of preferred scheme, the EMC element is installed in described direct current machine.
As a kind of preferred scheme, be provided with wave washer between the end of described armature spindle and support.
after having adopted technique scheme, effect of the present invention is: due to described a kind of direct current motor for cooling fan of automobile engine, comprise stator and with the rotor of commutator, described stator comprises support, be fixed in the magnet steel on support and be installed on the brush assembly of electric that is used in conjunction with described commutator on support, the number of described magnet steel is six, described six magnet steel circumferentially are evenly arranged in inboard wall of base, described rotor comprises the armature spindle that is rotatably installed on support and the armature core that is fixed on armature spindle, the groove number of described armature core is 10, the number of segment of described commutator is 20, described brush assembly of electric comprises six brushes that coordinate with commutator, between described brush circumferentially 60 °, interval be evenly arranged, be wound with armature winding by ripple around the mode that combines with lap wound on described armature core, owing to adopting six symmetrical composition stator magnetic circuits of high-performance magnet steel, form 6 utmost point motors, thereby power can be up to 280W, motor diameter can design and be no more than φ 97mm, and the groove number of armature core is 10, comparing at present traditional direct current machine employing number of segment and the groove number average of armature core is 20, 10 grooves have been lacked, the generation of waste material when also just having reduced fluting, also reduced the process operations of fluting, improved the utilance of the iron of armature core, simplify the structure, saved production cost.Commutator segment is 2 times of groove number of armature core in addition, can reduce bar-to-bar voltage, suppresses spark.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structure cutaway view of the embodiment of the present invention;
Fig. 2 is the coiling schematic diagram of the embodiment of the present invention;
In accompanying drawing: 1, support; 2, magnet steel; 3, armature core; 4, armature winding; 5, commutator; 51, commutator segment; 6, armature spindle; 7, bearing; 8, brush rack plate; 9, brace; 10, brush box; 11, brush; 12, spring; 14, EMC element; 15, ball bearing; 16, wave washer; 17, rear end cap.
Embodiment
The present invention is described in further detail below by specific embodiment.
A kind of direct current motor for cooling fan of automobile engine, as depicted in figs. 1 and 2, comprise stator and with the rotor of commutator 5, described stator comprises support 1, is fixed in the magnet steel 2 on support 1 and is installed on the brush assembly of electric that is used in conjunction with described commutator 5 on support 1, the number of described magnet steel 2 is six, described six magnet steel 2 circumferentially are evenly arranged and are bonded at support 1 inwall, obtain magnetic property by radial magnetizing, form stator magnetic circuit.Described rotor comprises the armature spindle 6 that is rotatably installed on support 1 and the armature core 3 that is fixed on armature spindle 6, armature spindle 6 and support 1 are provided with bearing 7, armature spindle 6 and bearing 7 interference fits, the other end of armature spindle 6 is provided with ball bearing 15, be provided with wave washer 16 between armature spindle 6 ends and rear end cap 17, play the effect of adjusting axial clearance of motor.Between rear end cap 17 and support 1, riveted joint is fixing, whole rear end cap 17 and support 1 have consisted of casing, described armature core 3 adopts interference fit with armature spindle 6, described commutator 5 and armature spindle 6 tight fits, the groove number of described armature core 3 is 10, the sheet number of the commutator segment 51 of described commutator 5 is 20, and described brush assembly of electric comprises brush rack plate 8, and brush rack plate 8 adopts high temperature resistant and engineering plastics that intensity is higher are injection molded.Described brush rack plate 8 is positioned at the junction of support 1 and rear end cap 17, brace 9 is fixed on brush rack plate 8, brush box 10 is anchored on brush rack plate 8, spring 12 is positioned at the chamber of brush box 10, brush 11 is placed in brush box 10 cavitys and is connected by spot welding with brace 9, described brush 11 is six brushes 11, between described brush 11 circumferentially 60 °, interval be evenly arranged, for reducing electromagnetic noise, brush 11 adopts ramp structures, is wound with armature winding 4 by ripple around the mode that combines with lap wound on described armature core 3.
Be equipped with louvre on described support 1 and rear end cap 17, be convenient to the heat radiation of motor, thereby reduce the temperature rise of motor, improve reliability.EMC element 14 is installed in described direct current machine, and described EMC element 14 and brace 9 welding make the anti-levels of electromagnetic interference of motor be greatly improved.
As shown in Figure 2, enamelled wire is around on armature core 3, and ripple forms armature winding 4 around the winding mode that combines with lap wound, when carbon brush contact commutator 5, forms the rotor field.Stator and rotor magnetic field reciprocation, according to left hand rule, charged enamelled wire produces magnetic pull, drives rotor shaft 6 rotations.
Claims (3)
1. direct current motor for cooling fan of automobile engine, comprise stator and with the rotor of commutator, described stator comprises support, be fixed in the magnet steel on support and be installed on the brush assembly of electric that is used in conjunction with described commutator on support, between rear end cap and support, riveted joint is fixing, it is characterized in that: the number of described magnet steel is six, described six magnet steel circumferentially are evenly arranged in inboard wall of base, described rotor comprises the armature spindle that is rotatably installed on support and the armature core that is fixed on armature spindle, the groove number of described armature core is 10, the number of segment of described commutator is 20, described brush assembly of electric comprises brush rack plate and six brushes that coordinate with commutator, between described brush circumferentially 60 °, interval be evenly arranged, be wound with armature winding by ripple around the mode that combines with lap wound on described armature core, brace is fixed on brush rack plate, described brush rack plate is positioned at the junction of support and rear end cap, brush box is anchored on brush rack plate, spring is positioned at the chamber of brush box, brush is placed in the brush box cavity and is connected by spot welding with brace, the EMC element is installed in described direct current machine, described EMC element and brace welding.
2. direct current motor for cooling fan of automobile engine as claimed in claim 1, it is characterized in that: described support is provided with louvre.
3. direct current motor for cooling fan of automobile engine as claimed in claim 2, is characterized in that: be provided with wave washer between the end of described armature spindle and support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110229481 CN102280984B (en) | 2011-08-11 | 2011-08-11 | Direct current motor for cooling fan of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110229481 CN102280984B (en) | 2011-08-11 | 2011-08-11 | Direct current motor for cooling fan of automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102280984A CN102280984A (en) | 2011-12-14 |
| CN102280984B true CN102280984B (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110229481 Active CN102280984B (en) | 2011-08-11 | 2011-08-11 | Direct current motor for cooling fan of automobile engine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20120068A1 (en) * | 2012-01-27 | 2013-07-28 | Gate Srl | ELECTRIC MACHINE IN CURRENT CONTINUOUS WITH MANIFOLD |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201146440Y (en) * | 2008-01-04 | 2008-11-05 | 刘汉忠 | Electromagnetic compatibility permanent magnetic DC motor |
| CN101783567B (en) * | 2009-01-19 | 2013-02-13 | 德昌电机(深圳)有限公司 | DC motor and cooling fan module using same |
| JP5515426B2 (en) * | 2009-05-28 | 2014-06-11 | 日本電産株式会社 | motor |
| CN202183715U (en) * | 2011-08-11 | 2012-04-04 | 张家港朗信电气有限公司 | Direct current motor for cooling fan of automobile engine |
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2011
- 2011-08-11 CN CN 201110229481 patent/CN102280984B/en active Active
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| CN102280984A (en) | 2011-12-14 |
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Owner name: JIANGSU LANGXIN ELECTRIC CO., LTD. Free format text: FORMER NAME: ZHANGJIAGANG LANGXIN ELECTRIC CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 215625, Jiangsu, Zhangjiagang, Fengzhen, Jiangsu Yangtze River International Metallurgical Industry Park, Yang Kam Road on the east side of Jiangsu long letter Electric Co., Ltd. Patentee after: JIANGSU LANGXIN ELECTRIC Co.,Ltd. Address before: 215600 Nanzhuang, Zhangjiagang Economic Development Zone, Suzhou, Jiangsu Patentee before: Zhangjiagang Langxin Electrical Co.,Ltd. |
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Address after: No. 8, Xinfeng Hexi Road, Tangshi, Yangshe Town, Zhangjiagang City, Suzhou City, Jiangsu Province 215600 Patentee after: Jiangsu Langxin Electric Co.,Ltd. Address before: 215625 Jiangsu Langxin Electric Co., Ltd., east of Yangjin Road, Jiangsu Yangtze River International Metallurgical Industrial Park, Jinfeng Town, Zhangjiagang, Jiangsu Province Patentee before: JIANGSU LANGXIN ELECTRIC Co.,Ltd. |
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