CN204961344U - Brushless air -blower of direct current for car - Google Patents
Brushless air -blower of direct current for car Download PDFInfo
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- CN204961344U CN204961344U CN201520601266.1U CN201520601266U CN204961344U CN 204961344 U CN204961344 U CN 204961344U CN 201520601266 U CN201520601266 U CN 201520601266U CN 204961344 U CN204961344 U CN 204961344U
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- motor
- external stator
- rotating shaft
- internal rotor
- yoke
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Abstract
The utility model relates to a brushless air -blower of direct current for car, including the motor and by the rotatory impeller of motor drive, the motor includes pivot, mounting panel and by interior and inner rotor, yoke and external stator that arrange in proper order on the mounting panel outward, and on the inner rotor was located in the pivot, impeller and pivot were connected and can be followed the pivot and rotate, the external stator includes a plurality of connectors, and grafting piece that the oriented evagination of one side shaping of every connector was established corresponds, the opposite side of every connector to the indent be equipped with with a grafting piece assorted slot, each connector is pegged graft from beginning to end and is constituted annular external stator. The utility model discloses a brushless motor, reduced the motor the noise, reduced electromagnetic interference, reduced the fault rate of motor, because the external stator adopts the form of a plurality of connector block mounts, makes the overall structure of motor compacter, the utility model discloses a motor is compared with there being the brush motor, and the heat that produces during the operation is less, and it is extravagant to have reduced the energy, has improved the operating efficiency of motor.
Description
Technical field
The utility model relates to a kind of automobile brush DC blower.
Background technique
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 working life of motor, and the working 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 rate of fault 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 working 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 rate of fault to a great extent, decrease electromagnetic interference, improve working efficiency, but, because its stator adopts integrative-structure, such structure is not only not easy to the winding of exciting winding, joins also to the integral installation of motor and brings inconvenience.
Therefore, for the fan on current automobile, await doing further improvement.
Model utility content
Technical problem to be solved in the utility model is the present situation for prior art, provides a kind of compact structure, is convenient to the automobile brush DC blower of assembling and assembling.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of automobile brush DC blower, comprise motor and driven the impeller rotated by motor, it is characterized in that: described motor comprises rotating shaft, mounting plate and the internal rotor arranged successively from inside to outside on a mounting board, yoke and external stator, described rotating shaft is located on internal rotor, and described impeller and rotating shaft connect and can rotate with rotating shaft; Described external stator comprises multiple connecting body, and the side of each connecting body forms the grafting block of outside projection, corresponding, the opposite side of each connecting body is concaved with the slot matched with described grafting block, and the grafting of each connecting body head and the tail forms the external stator of ring-type.
As further improvement of the utility model, the periphery of described internal rotor is arranged at intervals with the extending portion of multiple stator arrangement toward the outside, forms the containing groove for installing yoke between two adjacent extensions and described external stator.Adopt such structure, be convenient to yoke to be assembled between internal rotor and external stator.
Further, the outer side surface of described extending portion has the vertical slot arranged along extending portion short transverse, in this vertical slot, be plugged with the inserted block that the both sides of extending portion and described yoke can be made to be tight against.Adopt such structure, the both sides of extending portion can be utilized to clamp yoke, after yoke is assembled, there is better steadiness, avoid it to shake between internal rotor and external stator, make the overall structure of motor compacter, firm.
In above-mentioned each scheme, described connecting body comprises body, be convexly equipped in the tooth neck of body inner circumferential and be arranged at the crown in protruding neck end portion, the top of described external stator is provided with the upper skeleton be inserted in around tooth neck in external stator, the bottom of described external stator is provided with the lower skeleton be inserted in around tooth neck in external stator, and the exciting winding of described external stator is wrapped in the periphery of upper skeleton and lower skeleton.Such structure makes the assembling of external stator more firm, increases the steadiness of whole motor structure.
As preferably, the middle part of described internal rotor has the first jack inserted for rotating shaft bottom, corresponding, the inner side of described impeller is formed with the second jack inserted for rotating shaft top arranged downwards, so that be connected on internal rotor by rotating shaft by impeller, guarantee that impeller can rotate with the rotation of internal rotor.
Preferably, the upper surface of described mounting plate forms the ring of encirclement of a hoop layout, and described internal rotor, yoke and external stator are all located in this ring of encirclement.The periphery of described external stator is provided with a protecting cover, and the bottom of this protecting cover is connected with described mounting plate, and the top of described protecting cover has the through hole stretched out for rotating shaft.Said structure is set, can prevents dust etc. from falling into motor internal and each parts are polluted.
Preferably, the bottom of described mounting plate is provided with a radiation shell.This radiation shell preferably adopts aluminum material to make, to strengthen the heat dispersion of motor.
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 rate of fault reducing the noise of motor, decrease electromagnetic interference, reduce motor; Meanwhile, because external stator adopts multiple connecting body to combine the form of assembling, be not only convenient to be wound around exciting winding on external stator, also for the assembling between external stator and yoke and internal rotor is provided convenience, make the overall structure of motor compacter; 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 is the exploded view of Fig. 1;
Fig. 4 is the part-structure schematic diagram (hiding impeller and protecting cover) of Fig. 1;
Fig. 5 is the structural representation of the connecting body of external stator in Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Fig. 1 ~ 5, the automobile brush DC blower of the present embodiment comprises motor 1 and is driven the impeller 2 of rotation by motor 1.
In the present embodiment, motor 1 comprises rotating shaft 11, mounting plate 12 and the internal rotor 13 arranged successively from inside to outside on mounting plate 12, yoke 14 and external stator 15, the upper surface of mounting plate 12 forms the ring of encirclement 121 of a hoop layout, and internal rotor 13, yoke 14 and external stator 15 are all located in this ring of encirclement 121.
Concrete, as shown in Figure 4, external stator 15 comprises multiple connecting body 150, the side of each connecting body 150 forms the grafting block 151 of outside projection, corresponding, the opposite side of each connecting body 150 is concaved with the slot 152 matched with grafting block 151, and the grafting of each connecting body 150 head and the tail forms the external stator 15 of ring-type.Connecting body 150 comprises body 153, be convexly equipped in the tooth neck 154 of body 153 inner circumferential and be arranged at the crown 155 of convex neck 154 end, the top of external stator 15 is provided with the upper skeleton 16 be inserted in around tooth neck 154 in external stator 15, the bottom of external stator 15 is provided with the lower skeleton 17 be inserted in around tooth neck 154 in external stator 15, the exciting winding of external stator 15 is wrapped in the periphery of upper skeleton 16 and lower skeleton 17, to increase the steadiness of whole motor structure.
As shown in Figure 3, the periphery of external stator 15 is provided with a protecting cover 18, and the bottom of this protecting cover 18 is connected with mounting plate 12, and the top of protecting cover 18 has the through hole 181 stretched out for rotating shaft 11, falls into motor internal pollute each parts to prevent dust etc.
In the present embodiment, as shown in Figure 3,4, what the periphery of internal rotor 13 was arranged at intervals with that multiple stator toward the outside 15 arranges forms containing groove 100 for installing yoke 14 between extending portion 130, two adjacent extensions 130 and external stator 15.The outer side surface of extending portion 130 has the vertical slot 131 arranged along extending portion 130 short transverse, be plugged with the inserted block that the both sides of extending portion 130 and yoke 14 can be made to be tight against in this vertical slot 131, with the periphery making yoke 14 firmly be assemblied in internal rotor 13.The middle part of internal rotor 13 has the first jack 132 inserted for rotating shaft 11 bottom, corresponding, the inner side of impeller 2 is formed with the second jack 21 inserted for rotating shaft 11 top arranged downwards, so that be connected on internal rotor 13 by impeller 2 by rotating shaft 11, guarantee that impeller 2 can rotate with the rotation of internal rotor 13.
As shown in Figure 2, the bottom of mounting plate 12 is provided with a radiation shell 19, and this radiation shell 19 adopts aluminum material to make, and can strengthen the heat dispersion of motor.
Claims (8)
1. an automobile brush DC blower, comprise motor (1) and driven the impeller (2) rotated by motor (1), it is characterized in that: described motor (1) comprises rotating shaft (11), mounting plate (12) and the internal rotor (13) arranged successively from inside to outside on mounting plate (12), yoke (14) and external stator (15), described rotating shaft (11) is located on internal rotor (13), and described impeller (2) and rotating shaft (11) connect and can rotate with rotating shaft (11); Described external stator (15) comprises multiple connecting body (150), the side of each connecting body (150) forms the grafting block (151) of outside projection, corresponding, the opposite side of each connecting body (150) is concaved with the slot (152) matched with described grafting block (151), and the grafting of each connecting body (150) head and the tail forms the external stator (15) of ring-type.
2. automobile brush DC blower according to claim 1, it is characterized in that: the periphery of described internal rotor (13) is arranged at intervals with the extending portion (130) that multiple stator toward the outside (15) is arranged, forms the containing groove (100) for installing yoke (14) between two adjacent extensions (130) and described external stator (15).
3. automobile brush DC blower according to claim 2, it is characterized in that: the outer side surface of described extending portion (130) has the vertical slot (131) arranged along extending portion (130) short transverse, in this vertical slot (13130), be plugged with the inserted block that the both sides of extending portion (1) and described yoke (14) can be made to be tight against.
4. automobile brush DC blower according to claim 1, it is characterized in that: described connecting body (150) comprises body (153), be convexly equipped in the tooth neck (154) of body (153) inner circumferential and be arranged at the crown (155) of convex neck (154) end, the top of described external stator (15) is provided with the upper skeleton (16) be inserted in around tooth neck (154) in external stator, the bottom of described external stator (15) is provided with the lower skeleton (17) be inserted in around tooth neck (154) in external stator (15), the exciting winding of described external stator (15) is wrapped in the periphery of upper skeleton (16) and lower skeleton (17).
5. the automobile brush DC blower according to claim arbitrary in Claims 1 to 4, it is characterized in that: the middle part of described internal rotor (13) has the first jack (132) inserted for rotating shaft (11) bottom, corresponding, the inner side of described impeller (2) is formed with the second jack (21) inserted for rotating shaft (11) top arranged downwards.
6. the automobile brush DC blower according to claim arbitrary in Claims 1 to 4, it is characterized in that: the upper surface of described mounting plate (12) forms the ring of encirclement (121) of a hoop layout, and described internal rotor (13), yoke (14) and external stator (15) are all located in this ring of encirclement (121).
7. the automobile brush DC blower according to claim arbitrary in Claims 1 to 4, it is characterized in that: the periphery of described external stator (15) is provided with a protecting cover (18), the bottom of this protecting cover (18) is connected with described mounting plate (12), and the top of described protecting cover (18) has the through hole (181) stretched out for rotating shaft (11).
8. the automobile brush DC blower according to claim arbitrary in Claims 1 to 4, is characterized in that: the bottom of described mounting plate (12) is provided with a radiation shell (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601266.1U CN204961344U (en) | 2015-08-11 | 2015-08-11 | Brushless air -blower of direct current for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601266.1U CN204961344U (en) | 2015-08-11 | 2015-08-11 | Brushless air -blower of direct current for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961344U true CN204961344U (en) | 2016-01-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520601266.1U Active CN204961344U (en) | 2015-08-11 | 2015-08-11 | Brushless air -blower of direct current for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456954A (en) * | 2020-04-09 | 2020-07-28 | 苏州双航机电有限公司 | Novel brushless electric fan heater |
-
2015
- 2015-08-11 CN CN201520601266.1U patent/CN204961344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456954A (en) * | 2020-04-09 | 2020-07-28 | 苏州双航机电有限公司 | Novel brushless electric fan heater |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |