CN210167889U - Shaftless inner rotor brushless motor adopting waterproof structural design - Google Patents
Shaftless inner rotor brushless motor adopting waterproof structural design Download PDFInfo
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- CN210167889U CN210167889U CN201921274924.5U CN201921274924U CN210167889U CN 210167889 U CN210167889 U CN 210167889U CN 201921274924 U CN201921274924 U CN 201921274924U CN 210167889 U CN210167889 U CN 210167889U
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Abstract
The utility model discloses a shaftless inner rotor brushless motor adopting a waterproof structural design, belonging to the technical field of motor equipment, comprising a stator seat, a stator shell component and a rotor seat sleeved in the stator shell component, wherein the rotor seat is provided with a rotor closed cavity and a rotor external member is arranged in the rotor closed cavity, and an annular sealing cavity matched with the stator seat is arranged in the stator shell component; the brushless motor is characterized by further comprising waterproof bearings which are arranged on the rotor seat and located at two ends of the rotor closed cavity, and the waterproof bearings are all assembled and connected with the stator shell assembly, so that the brushless motor has a good waterproof effect, and the service life of the brushless motor can be prolonged.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment, particularly, relate to an adopt shaftless inner rotor brushless motor of waterproof structural design.
Background
With the development of new materials, new processes and microelectronic control technologies, great development is achieved in the field of brushless motors.
Brushless motor makes the current commutation through electronic regulation and control to reach the effect that brush motor coil oneself rotated the switching-over, brushless motor has the advantage to be: controllability, high reliability, small abrasion, long service life and easy maintenance; brushless motors are used in many applications, including unmanned aerial vehicles and submersibles, to generate forward power by driving blades.
But the brushless motor that uses on the submersible need place in a water-proof cabin for the structure is complicated, and rotor unmanned aerial vehicle uses brushless motor though have certain waterproof effect, nevertheless under long-term use state, often can be because inside intaking and lead to inside metal parts corrosion, so rainy day unmanned aerial vehicle generally can not carry out the operation.
In addition: the traditional brushless motor adopts a brushless outer rotor structure design, and is fixed by a unilateral bearing, so that the stability of the motor is not high in fixation of two sides, and a motor shaft can be bent when in collision.
SUMMERY OF THE UTILITY MODEL
In view of this, in order to solve the above-mentioned problem that prior art exists, the utility model aims at providing an adopt shaftless inner rotor brushless motor of waterproof structural design in order to reach brushless motor and possess good waterproof effect, can prolong its life's purpose.
The utility model discloses the technical scheme who adopts does: a shaftless inner rotor brushless motor with a waterproof structural design comprises a stator seat, a stator shell assembly and a rotor seat sleeved in the stator shell assembly, wherein a rotor closed cavity is arranged on the rotor seat, a rotor sleeve member is arranged in the rotor closed cavity, and an annular sealing cavity matched with the stator seat is arranged in the stator shell assembly; the stator comprises a stator shell assembly and a rotor seat, and is characterized by further comprising waterproof bearings which are arranged on the rotor seat and located at two ends of the rotor closed cavity, and the waterproof bearings are all assembled and connected with the stator shell assembly.
Furthermore, the stator shell assembly comprises a stator shell and a sealing plate, an annular notch is formed in the stator shell, the annular notch is in sealing assembly with the sealing plate, and the stator seat is installed in the annular notch, so that a sealing space for accommodating the stator seat is formed by mutually assembling the stator shell and the sealing plate.
Furthermore, a waterproof joint is arranged on the sealing plate and connected with the stator seat, and the waterproof joint is used for connecting an external circuit.
Furthermore, the stator seat comprises a plurality of silicon steel sheets which are arranged along the same axis direction and are mutually bonded, each silicon steel sheet forms a plurality of winding seats, and each winding seat is wound with a coil.
Further, each waterproof bearing is respectively assembled and connected with the stator shell and the sealing plate so as to realize stable assembly and connection of the stator shell and the sealing plate.
Furthermore, a bearing mounting seat correspondingly matched with the waterproof bearing is arranged on the rotor seat.
Further, the end of the rotor base is provided with a power shaft mounting base which is used for fixing a power shaft penetrating through the motor or fixing other components needing to be driven to rotate.
Further, the rotor sealing cavity comprises a rotor sealing shell and an annular shell arranged on the rotor seat, and the rotor sealing shell is sleeved on the annular shell to form the rotor sealing cavity so as to seal and protect the rotor.
Further, the rotor kit includes magnet steel, magnet steel mount pad and keeps apart the fixing base, the magnet steel mount pad is evenly arranged in the annular housing along same circumferencial direction, and is equipped with on the magnet steel mount pad the magnet steel is equipped with between two adjacent magnet steels keep apart the fixing base.
Furthermore, the rotor closed shell is abutted against the surface of the magnetic steel, so that the magnetic steel is prevented from being separated from the rotor seat due to the centrifugal action when the rotor moves at a high speed, and a good stabilizing effect is achieved.
The utility model has the advantages that:
1. adopt the utility model provides a with shaft-less inner rotor brushless motor of waterproof structural design, it possesses a plurality of waterproof construction, and it can effectively keep apart the erosion oxidation of moisture to inside magnet steel, coil and silicon steel sheet.
2. The design of the shaftless inner rotor is adopted, so that the motor can achieve a better stress balance effect, mechanical abrasion is reduced, the service life is prolonged, the through type power shaft can be directly driven, the design is wide in application, and compared with the traditional brushless motor, the design has stronger structural stability and longer service life.
3. The coil of stator seat and the magnet steel of rotor seat all are in a confined space in this design, can prevent that the water smoke dust from getting into inside the motor, have 0.5 mm's clearance between rotor closed chamber and the stator shell, are full of magnetic lubricant between this clearance, have both played the effect of magnetic conduction and have also played waterproof lubricated effect.
Drawings
Fig. 1 is an exploded perspective view of a shaftless inner rotor brushless motor designed with a waterproof structure according to the present invention;
fig. 2 is a schematic structural diagram of a rotor base in a shaftless inner rotor brushless motor designed by a waterproof structure according to the present invention;
fig. 3 is a schematic structural diagram of a stator seat in a shaftless inner rotor brushless motor designed by a waterproof structure according to the present invention;
fig. 4 is a schematic sectional view of an elevation of a shaftless inner rotor brushless motor designed with a waterproof structure according to the present invention;
fig. 5 is a schematic plan sectional view of a shaftless inner rotor brushless motor designed with a waterproof structure according to the present invention;
the drawings are labeled as follows:
1-waterproof joint, 2-sealing plate, 3-waterproof bearing, 4-power shaft mounting seat, 5-bearing mounting seat, 6-rotor seat, 61-sealing baffle, 62-magnetic steel mounting seat, 63-isolation fixing seat, 7-magnetic steel, 8-rotor sealing shell, 9-coil, 10-stator seat, 11-stator shell outer wall, 12-stator shell inner wall, 101-winding seat and 102-baffle seat.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases for a person of ordinary skill in the art; the drawings in the embodiments are provided to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Example 1
As shown in fig. 4, the present embodiment specifically provides a shaftless inner rotor brushless motor designed with a waterproof structure, which includes a stator seat 10, a stator housing assembly and a rotor seat 6 sleeved in the stator housing assembly, the rotor seat 6 is provided with a rotor enclosed cavity, a rotor kit is arranged in the rotor enclosed cavity, the rotor enclosed cavity provides a good sealing space for the rotor kit, and the rotor enclosed cavity can well block external moisture from entering into the rotor enclosed cavity, so as to provide good waterproof protection for the internal rotor kit. As shown in fig. 2, the rotor base 6 is a hollow penetrating structure, and is used to fix a power shaft passing through the motor, or to install and fix other components that need to be driven to rotate, so that the motor can achieve a better force balance effect, reduce mechanical wear, and prolong the service life.
As shown in fig. 1, an annular sealing cavity matched with the stator seat 10 is arranged in the stator casing assembly, and the annular sealing cavity provides a good sealing space for the stator seat 10, which can well block external moisture from entering the interior of the annular sealing cavity, so as to provide good waterproof protection for the stator seat 10;
as shown in fig. 1, the stator housing assembly further comprises waterproof bearings 3 which are arranged on the rotor base 6 and located on two sides of the rotor closed cavity, each waterproof bearing 3 is assembled and connected with the stator housing assembly, the waterproof bearings 3 can play an auxiliary waterproof role, and meanwhile, the rotor base 6 can be guaranteed to freely rotate relative to the stator housing assembly. In order to realize the stable installation of the waterproof bearing 3, the rotor base 6 is provided with a bearing installation base 5 correspondingly matched with the waterproof bearing 3, and the bearing installation base 5 plays a good role in installing and fixing the waterproof bearing 3.
As shown in fig. 5, the stator housing assembly includes a stator housing and a sealing plate 2, an annular slot is formed in the stator housing, the annular slot is formed between an outer wall 11 of the stator housing and an inner wall 12 of the stator housing, the inner wall 12 of the stator housing is matched with the rotor seat 6, the stator housing and the sealing plate 2 are assembled in a sealing manner to seal the annular slot and form the annular sealing cavity, and the stator seat 10 is installed in the annular slot; as shown in fig. 3, the stator seat 10 includes a plurality of silicon steel sheets arranged along the same axial direction and bonded to each other, a plurality of winding seats 101 are formed after the silicon steel sheets are bonded to each other, a coil 9 is wound on each winding seat 101, a blocking seat 102 is disposed at an end of each winding seat 101, the blocking seat 102 is used for preventing the coil 9 from falling off, a waterproof joint 1 is disposed on the sealing plate 2, and the waterproof joint 1 is connected to each coil 9 in the stator seat 10. The number of the coil holders 101 is set to be a multiple of 3, so as to divide each coil 9 wound on the coil holders 101 into three groups for generating a changing electromagnetic field when being electrified, the coils 9 are divided into three quantitative groups, the head ends of the three groups of coils 9 are respectively linked with the tail ends of the other group of coils 9, three connection points are respectively connected with the three waterproof joints 1, so as to form an angle connection wiring method commonly used by the coils 9 in the motor, and each waterproof joint 1 is used for connecting in current input from an electronic speed regulator to the outside, so as to realize the rotating operation of the brushless motor.
In the present embodiment, as shown in fig. 4, each waterproof bearing 3 is assembled and connected with the stator shell and the sealing plate 2, respectively, so as to achieve stable assembly of the stator shell and the sealing plate 2.
The end of the rotor base 6 is provided with a power shaft mounting base 4 which is used for fixing a power shaft penetrating through the motor or other components needing to be driven to rotate.
The rotor closed cavity comprises a rotor closed shell 8 and an annular shell arranged on the rotor seat 6, the annular shell is formed by two parallel sealing baffles 61 integrally formed on the rotor seat 6, the rotor closed shell 8 is sleeved on the annular shell and forms the rotor closed cavity, and the rotor closed cavity can enable the magnetic steel 7 and the silicon steel sheet to be in a closed space, so that external moisture can be prevented from entering the rotor closed cavity, and the magnetic steel 7 and the silicon steel sheet are well protected.
As shown in fig. 2, the rotor kit includes magnetic steels 7, magnetic steel installation seats 62 and isolation fixing seats 63, the magnetic steel installation seats 62 are uniformly arranged in the annular casing along the same circumferential direction, the magnetic steels 7 are arranged on the magnetic steel installation seats 62, the isolation fixing seats 63 are arranged between two adjacent magnetic steels 7, and the isolation fixing seats 63 are arranged between two adjacent magnetic steels 7, so that a certain gap is formed between the two magnetic steels 7, and the magnetic steels 7 can be prevented from moving laterally; the magnetic steel 7 is set to be a high-magnetism rubidium magnet, but is not limited to the rubidium magnet, any object with strong magnetism can be used as the structure, the bottom of the magnetic steel 7 is of a plane structure, and the side face of the magnetic steel is of an arc structure, so that the magnetic steel can be stably installed in the annular shell. Preferably, the inner side surface of the rotor sealing shell 8 is abutted against the surface of the magnetic steel 7, so that the magnetic steel 7 can be prevented from being separated from the rotor seat 6 due to the centrifugal action when the rotor moves at a high speed, and a good stabilizing effect is achieved.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (10)
1. A shaftless inner rotor brushless motor designed by a waterproof structure comprises a stator seat and is characterized by also comprising a stator shell component and a rotor seat sleeved in the stator shell component, wherein a rotor closed cavity is arranged on the rotor seat, a rotor sleeve component is arranged in the rotor closed cavity, and an annular sealing cavity matched with the stator seat is arranged in the stator shell component; the stator comprises a stator shell assembly and a rotor seat, and is characterized by further comprising waterproof bearings which are arranged on the rotor seat and located at two ends of the rotor closed cavity, and the waterproof bearings are all assembled and connected with the stator shell assembly.
2. The brushless motor of claim 1, wherein the stator housing assembly comprises a stator housing and a sealing plate, the stator housing having an annular slot formed therein, the annular slot being sealingly engaged with the sealing plate and the stator seat being seated in the annular slot.
3. The shaftless inner rotor brushless motor designed with the waterproof structure according to claim 2, wherein a waterproof joint is provided on the sealing plate, and the waterproof joint is connected to the stator base.
4. The brushless motor with a shaftless inner rotor of claim 1 or 3, wherein the stator holder comprises a plurality of silicon steel sheets arranged along the same axial direction and bonded to each other, each silicon steel sheet forms a plurality of winding holders, and each winding holder is wound with a coil.
5. The shaftless inner rotor brushless motor designed with a waterproof structure according to claim 2, wherein each of the waterproof bearings is assembled with the stator housing and the sealing plate, respectively.
6. The shaftless inner rotor brushless motor designed with the waterproof structure according to claim 1, wherein a bearing mounting seat correspondingly matched with the waterproof bearing is provided on the rotor seat.
7. The shaftless inner rotor brushless motor designed with a waterproof structure according to claim 1, wherein a power shaft mounting seat is provided at an end of the rotor seat.
8. The brushless motor with a shaftless inner rotor designed with a waterproof structure of claim 1, wherein the rotor-enclosed chamber comprises a rotor-enclosed shell and an annular housing provided on a rotor base, and the rotor-enclosed shell is sleeved on the annular housing to form the rotor-enclosed chamber.
9. The brushless motor with a shaftless inner rotor of claim 8, wherein the rotor assembly comprises magnetic steels, magnetic steel mounting seats and isolating fixing seats, the magnetic steel mounting seats are uniformly arranged in the annular housing along the same circumferential direction, the magnetic steels are arranged on the magnetic steel mounting seats, and the isolating fixing seats are arranged between two adjacent magnetic steels.
10. The shaftless inner rotor brushless motor designed with a waterproof structure according to claim 9, wherein the rotor closing shell abuts against a surface of the magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921274924.5U CN210167889U (en) | 2019-08-07 | 2019-08-07 | Shaftless inner rotor brushless motor adopting waterproof structural design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921274924.5U CN210167889U (en) | 2019-08-07 | 2019-08-07 | Shaftless inner rotor brushless motor adopting waterproof structural design |
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| CN210167889U true CN210167889U (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921274924.5U Active CN210167889U (en) | 2019-08-07 | 2019-08-07 | Shaftless inner rotor brushless motor adopting waterproof structural design |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417168A (en) * | 2019-08-07 | 2019-11-05 | 四川建筑职业技术学院 | A kind of shaftless inner-rotor brushless motor designed using waterproof construction |
-
2019
- 2019-08-07 CN CN201921274924.5U patent/CN210167889U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417168A (en) * | 2019-08-07 | 2019-11-05 | 四川建筑职业技术学院 | A kind of shaftless inner-rotor brushless motor designed using waterproof construction |
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