CN204967526U - Brushless electron fan of direct current for car - Google Patents
Brushless electron fan of direct current for car Download PDFInfo
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- CN204967526U CN204967526U CN201520600902.9U CN201520600902U CN204967526U CN 204967526 U CN204967526 U CN 204967526U CN 201520600902 U CN201520600902 U CN 201520600902U CN 204967526 U CN204967526 U CN 204967526U
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Abstract
The utility model relates to a brushless electron fan of direct current for car, including the motor and by the rotatory impeller of motor drive, impeller middle part shaping has a cavity that open side down, and the motor is in locating this cavity and by interior and outer pivot of arranging in proper order, internal stator, yoke and external rotor are packaged with a mounting panel on the opening of cavity, the top shaping of external rotor has connecting portion, and these connecting portion and the top of cavity are connected makes the impeller can be rotatory along with the external rotor, and the pivot is located in the internal stator and can be rotatory around self axis, be provided with male jack on the confession pivot on the connecting portion. The utility model discloses a brushless motor, reduced the motor the noise, reduced electromagnetic interference, reduced the fault rate of motor, simultaneously, owing to the useful cavity of installing the motor of impeller middle part shaping, make the overall structure of fan compacter, firmly just be convenient for assemble, improved fan overall structure's steadiness, the utility model discloses an it is extravagant that the motor has reduced the energy, has improved the operating efficiency of motor.
Description
Technical field
The utility model relates to a kind of automobile brush DC electronic fan.
Background technology
In prior art, the motor of vapour onboard fan mostly is brush motor, the structure of brush motor is comparatively complicated, commutator is there is in its structure, in use, the spark that mechanical commutation produces can cause rubbing between commutator and brush, and this not only easily causes the wearing and tearing of commutator and brush, shortens the useful life of motor, and the useful life of general brush motor only has 600 hours ~ 700 hours; Too increase electromagnetic interference strength, cause larger noise.Meanwhile, because structure is comparatively complicated, the failure rate of brush motor is higher, and the existence of commutator limits the inertia of rotor turns, have impact on the dynamic characteristic of rotor; Further, complicated structure causes motor operationally can produce a large amount of heat, and the accumulation of these heats not only easily makes motor exceed normal serviceability temperature scope, affects security of operation and the useful life of motor, also directly results in the low of motor working efficiency.
Authorization Notice No. is Chinese utility model patent " the brushless warm braw motor of the automobile " (application number: 201420201934.7) disclose a kind of structure of CN203911663U, which employs brushless electric machine, reduce noise and failure rate to a great extent, decrease electromagnetic interference, improve operating efficiency, but, it is arranged on by motor on a mounting panel, then by arranging fixed block at wheel backface, and make this fixed block be stuck between adjacent two magnet steel and impeller and external rotor be linked together, because magnet steel itself is the inner side being pasted onto external rotor, and the parts of motor are more, cause above-mentioned syndeton firm not, assembling inconvenience, whole motor structure is compact not.
Therefore, for the fan on current automobile, await doing further improvement.
Utility model content
Technical problem to be solved in the utility model is the present situation for prior art, provides a kind of simple and compact for structure, easy to assembly and have the automobile brush DC electronic fan of good steadiness.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of automobile brush DC electronic fan, comprise motor and driven the impeller rotated by motor, it is characterized in that: in the middle part of described impeller, form a cavity that Open Side Down, described motor comprises to be located in this cavity and the rotating shaft of arranging successively from inside to outside, internal stator, yoke and external rotor, described yoke have multiple and circumferentially interval be fixed on the inwall of external rotor, the opening of described cavity is packaged with a mounting panel; The top of described external rotor forms a junction, this connecting portion connects with the top of described cavity makes impeller can rotate with external rotor, described rotating shaft is located in internal stator and also can be rotated around own axes, described connecting portion is provided with the jack inserted for rotating shaft upper end.
As preferably, the top of described cavity offers the screwed hole passed for screw, so that directly impeller and external rotor are fixed together by screw with corresponding respectively on connecting portion.
Preferably, the top of described internal stator is provided with interval and is inserted in upper skeleton between adjacent two internal stator teeth, and the bottom of described internal stator is provided with interval and is inserted in lower skeleton between adjacent two internal stator teeth.Adopt such structure, upper skeleton and lower skeleton restriction external rotor the rocking of each rotor tooth in rotation process can be utilized, increase the stability of motor rotation.
For the ease of assembling, described mounting panel is provided with assembly parts, the periphery of these assembly parts is located at by described internal stator, and described rotating shaft is rotationally connected with on these assembly parts by bearing.Adopt said structure, each parts in motor can be made to have assembled rear overall structure compacter, simultaneously for rotating shaft provides the strong point, be convenient to the pivot of impeller to constrain in rotating shaft, add the stability of wheel rotation.
Preferably, described mounting panel is the heating panel adopting aluminum material to make.Mounting panel on the one hand can form inner chamber for mounted motor with cavity jointly, and on the other hand, be convenient to the heat produced in motor operation course to shed, structure is simple and practical.
In above-mentioned each scheme, described internal stator is the inner-stator iron core of 12 salient-pole structures.
Compared with prior art, the utility model has the advantage of:
The utility model adopts brushless electric machine, without the need to using commutator, avoids the friction between commutator and brush, the failure rate reducing the noise of motor, decrease electromagnetic interference, reduce motor; Simultaneously, owing to forming the cavity that Open Side Down in the middle part of impeller, this cavity is directly used to provide the inner chamber of mounted motor, simplify the overall structure of motor, cavity directly and external rotor link together, make the overall structure of fan compacter, firm and be convenient to assembling, improve the integrally-built steadiness of fan; In addition, motor of the present utility model is compared with brush motor, and the heat produced during operation is less, decreases energy waste, improves the operational efficiency of motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of another angle of Fig. 1;
Fig. 3's is the part-structure schematic diagram (hide mounting panel and upper skeleton) of Fig. 1;
Fig. 4 is the exploded view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in figures 1-4, the automobile brush DC electronic fan of the present embodiment comprises motor 1 and is driven the impeller 2 of rotation by motor 1.
In the present embodiment, a cavity that Open Side Down 21 is formed in the middle part of impeller 2, motor 1 is located in this cavity 21, the opening of cavity 21 is packaged with a mounting panel 12, this mounting panel 12 is the heating panel adopting aluminum material to make, can jointly form with cavity 21 inner chamber being used for mounted motor 1 on the one hand, on the other hand, be convenient to the heat produced in motor 1 running to shed.
As shown in Figure 2,3, motor 1 comprise arrange successively from inside to outside rotating shaft 11, internal stator 13, yoke 14 and external rotor 15, internal stator 13 is the inner-stator iron core of 12 salient-pole structures, the top of external rotor 15 forms a junction 150, this connecting portion 150 offers with corresponding respectively on the top of cavity 21 screwed hole 100 passed for screw, impeller 2 and external rotor 15 are fixed together through this screwed hole 100 by screw, to make external rotor 15 energy impeller 2 with rotating.Yoke 14 have multiple and circumferentially interval be fixed on the inwall of external rotor 15.
As shown in Figure 3, mounting panel 12 is provided with assembly parts 16, these assembly parts 16 are threaded on mounting panel 12, the periphery of assembly parts 16 is located at by internal stator 15, and rotating shaft 11 is rotationally connected with on assembly parts 16 by bearing 110, and the top of assembly parts 16 is exposed in the upper end of rotating shaft 11, corresponding, connecting portion 150 is provided with the jack 152 inserted for rotating shaft 11 upper end, so that constrain in rotating shaft 11 by the pivot of impeller 2, increases the stability that impeller 2 rotates.
In the present embodiment, the top of internal stator 13 is provided with interval and is inserted in upper skeleton 17 between adjacent two internal stator teeth 131, the bottom of internal stator 13 is provided with interval and is inserted in lower skeleton 18 between adjacent two internal stator teeth 131, in order to limiting external rotor 15 the rocking of each rotor tooth 131 in rotation process with upper skeleton 17 and lower skeleton 18, increase the stability that motor 1 runs.The excitation winding of internal stator 13 is wound around around upper skeleton 17 and lower skeleton 18.
Claims (6)
1. an automobile brush DC electronic fan, comprise motor (1) and driven the impeller (2) rotated by motor (1), it is characterized in that: described impeller (2) middle part forms a cavity that Open Side Down (21), described motor comprises to be located in this cavity (21) and the rotating shaft (11) of arranging successively from inside to outside, internal stator (13), yoke (14) and external rotor (15), described yoke (14) have multiple and circumferentially interval be fixed on the inwall of external rotor (15), the opening of described cavity (21) is packaged with a mounting panel (12), the top of described external rotor forms a junction (150), this connecting portion (150) and the top of described cavity (21) connect makes impeller (2) can rotate with external rotor (15), described rotating shaft (11) is located in internal stator (13) and also can be rotated around own axes, described connecting portion (150) is provided with the jack (151) inserted for rotating shaft (11) upper end.
2. automobile brush DC electronic fan according to claim 1, is characterized in that: the top of described cavity (21) offers with corresponding respectively on connecting portion (150) screwed hole (100) passed for screw.
3. automobile brush DC electronic fan according to claim 1, it is characterized in that: the top of described internal stator (13) is provided with interval and is inserted in upper skeleton (17) between adjacent two internal stator teeth (131), the bottom of described internal stator (13) is provided with interval and is inserted in lower skeleton (18) between adjacent two internal stator teeth (131).
4. automobile brush DC electronic fan according to claim 1, it is characterized in that: described mounting panel (12) is provided with assembly parts (16), the periphery of these assembly parts (16) is located at by described internal stator (13), and described rotating shaft (11) is rotationally connected with on these assembly parts (16) by bearing (110).
5. the automobile brush DC electronic fan according to claim arbitrary in Claims 1 to 4, is characterized in that: described mounting panel (12) is the heating panel adopting aluminum material to make.
6. the automobile brush DC electronic fan according to claim arbitrary in Claims 1 to 4, is characterized in that: described internal stator (13) is the inner-stator iron core of 12 salient-pole structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600902.9U CN204967526U (en) | 2015-08-11 | 2015-08-11 | Brushless electron fan of direct current for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600902.9U CN204967526U (en) | 2015-08-11 | 2015-08-11 | Brushless electron fan of direct current for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204967526U true CN204967526U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520600902.9U Active CN204967526U (en) | 2015-08-11 | 2015-08-11 | Brushless electron fan of direct current for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204967526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944819A (en) * | 2019-04-17 | 2019-06-28 | 深圳市赫瑞科技有限公司 | A kind of anticorrosion fan |
-
2015
- 2015-08-11 CN CN201520600902.9U patent/CN204967526U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944819A (en) * | 2019-04-17 | 2019-06-28 | 深圳市赫瑞科技有限公司 | A kind of anticorrosion fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |