CN216530846U - Sealed permanent magnet brushless DC motor - Google Patents
Sealed permanent magnet brushless DC motor Download PDFInfo
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- CN216530846U CN216530846U CN202123405869.9U CN202123405869U CN216530846U CN 216530846 U CN216530846 U CN 216530846U CN 202123405869 U CN202123405869 U CN 202123405869U CN 216530846 U CN216530846 U CN 216530846U
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- motor
- motor shaft
- permanent magnet
- magnet brushless
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Abstract
The utility model belongs to the technical field of motors, and particularly relates to a sealed permanent magnet brushless direct current motor which comprises: the motor shaft penetrates through the shell; the bearing is sleeved on the motor shaft and is arranged between the shell and the motor shaft; the sealing mechanism is arranged on the outer wall of the shell and covers the bearing, so that sealing between the motor shaft and the shell is realized, and impurities are prevented from entering the shell to influence the performance and the service life of the motor.
Description
Technical Field
The utility model belongs to the technical field of motors, and particularly relates to a sealed permanent magnet brushless direct current motor.
Background
The permanent magnet brushless direct current motor is easily influenced by impurities entering the shell in the using process, the performance is reduced, the service life is prolonged, the permanent magnet brushless direct current motor can be seriously damaged, and loss and harm are caused.
Therefore, a new sealed permanent magnet brushless dc motor needs to be designed based on the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a sealed permanent magnet brushless direct current motor to solve the technical problem of motor sealing.
In order to solve the above technical problem, the present invention provides a sealed permanent magnet brushless dc motor, comprising:
a shell body, a plurality of first connecting rods and a plurality of second connecting rods,
the motor shaft penetrates through the shell;
the bearing is sleeved on the motor shaft and is arranged between the shell and the motor shaft;
a sealing mechanism disposed on an outer wall of the housing and covering the bearing.
Further, the sealing mechanism includes: a cover body and a sealing ring;
the cover body is connected with the outer wall of the shell and covers the bearing;
the sealing ring is sleeved on the motor shaft and arranged between the cover body and the motor shaft.
Further, the sealed permanent magnet brushless dc motor further includes: a stator and a rotor;
the stator is arranged on the motor shaft;
the rotor is arranged on the inner wall of the shell;
the rotor is disposed around the stator.
Furthermore, a plurality of air ducts are formed in the outer wall of the shell;
the air duct is communicated with the atmosphere outside the shell.
Further, the air duct is arc-shaped;
the air ducts are circumferentially arranged along the motor shaft in the side wall of the shell.
Further, the sealed permanent magnet brushless dc motor further includes: a water cooling mechanism;
the water cooling mechanism is arranged in a space enclosed by the shell and the cover body;
the water cooling mechanism is suitable for dissipating heat between the shell and the cover body.
Further, the water cooling mechanism includes: the device comprises a box body, a water pump and a cavity;
the box body is arranged outside the shell;
the cavity is arranged on the motor shaft and is arranged in a space enclosed by the shell and the cover body;
the water pump is arranged on the box body;
the water pump is connected with a water injection pipe, and the water injection pipe is arranged in the motor shaft and penetrates out of the motor shaft to be connected with the cavity;
the cavity is connected with a drain pipe, and the drain pipe is arranged in the motor shaft and connected with the box body.
The motor has the beneficial effects that the motor shaft penetrates through the shell and the motor shaft; the bearing is sleeved on the motor shaft and is arranged between the shell and the motor shaft; the sealing mechanism is arranged on the outer wall of the shell and covers the bearing, so that sealing between the motor shaft and the shell is realized, and impurities are prevented from entering the shell to influence the performance and the service life of the motor.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a sealed permanent magnet brushless dc motor of the present invention;
FIG. 2 is a schematic structural view of the air duct of the present invention;
FIG. 3 is a schematic cross-sectional view of the air duct of the present invention.
In the figure:
1 is a shell, 11 is an air duct, 12 is an air inlet, 13 is an air outlet, and 14 is a support column;
2 is a motor shaft;
3 is a bearing;
4 is a sealing mechanism, 41 is a cover body, and 42 is a sealing ring;
5 is a stator;
6 is a rotor;
7 is a water cooling mechanism, 71 is a box body, 72 is a water pump, 73 is a cavity, 74 is a water injection pipe, and 75 is a drain pipe.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present embodiment provides a sealed permanent magnet brushless dc motor, including: the motor comprises a shell 1 and a motor shaft 2, wherein the motor shaft 2 penetrates through the shell 1; the bearing 3 is sleeved on the motor shaft 2, and the bearing 3 is arranged between the shell 1 and the motor shaft 2; sealing mechanism 4, sealing mechanism 4 sets up on the outer wall of casing 1, and sealing mechanism 4 covers and establishes on bearing 3, realized the sealed between motor shaft 2 and the casing 1, avoid impurity to get into casing 1 and influence the performance and the life of motor.
In the present embodiment, the sealing mechanism 4 includes: a lid 41 and a seal ring 42; the cover 41 is connected with the outer wall of the housing 1, and the cover 41 covers the bearing 3; the sealing ring 42 is sleeved on the motor shaft 2 and is arranged between the cover body 41 and the motor shaft 2; the seal ring 42 is firmly connected with the cover 41, and the seal ring 42 contacts with the motor shaft 2, so that when the cover 41 is driven by the shell 1 to rotate, the seal ring 42 rotates, and the rotation of the shell 1 is not influenced.
In this embodiment, the sealed permanent magnet brushless dc motor further includes: a stator 5 and a rotor 6; the stator 5 is arranged on the motor shaft 2; the rotor 6 is arranged on the inner wall of the shell 1; the rotor 6 is disposed around the stator 5; the rotor 6 can drive the housing 1 to rotate.
As shown in fig. 2 and fig. 3, in the present embodiment, a plurality of air ducts 11 are formed in the outer wall of the housing 1; the air duct 11 is communicated with the atmosphere outside the shell 1; the heat in the housing 1 can be dissipated through the air duct 11 when the housing 1 rotates.
In this embodiment, the air outlet 13 of the air duct 11 is opened on the side wall of the housing 1 along the length direction of the motor shaft 2; the air inlet 12 of the air duct 11 is formed in the outer wall of the housing 1, that is, the air inlet 12 is formed in the housing 1 of the arc-shaped portion of the rotating housing 1; when the housing 1 rotates, air enters the air duct 11 in the rotating direction and flows out from the air outlet 13, so that heat in the housing 1 is transferred to the air in the air duct 11, the heat is taken out by the air, and the temperature in the housing 1 is reduced.
In this embodiment, the air duct 11 is arc-shaped, and the arc shape can increase the length of the air duct 11, thereby facilitating more effective heat dissipation; the air duct 11 is arranged in the side wall of the housing 1 along the circumferential direction of the motor shaft 2.
In this embodiment, a plurality of support columns 14 are disposed in the air duct 11 along the length direction of the motor shaft 2, and since the air duct 11 formed by hollowing out the housing 1 may reduce the strength of the housing 1, the support columns 14 are disposed to compensate for the strength reduction caused by hollowing out the housing 1.
In this embodiment, the sealed permanent magnet brushless dc motor further includes: a water cooling mechanism 7; the water cooling mechanism 7 is arranged in a space enclosed by the shell 1 and the cover body 41; the water cooling mechanism 7 is suitable for dissipating heat between the shell 1 and the cover body 41; the rotation of the sealing ring 42 relative to the motor shaft 2 generates a large amount of heat, and the heat transfer into the housing 1 affects the performance and the service life of the motor, so that the heat between the housing 1 and the cover 41 needs to be dissipated.
In the present embodiment, the water cooling mechanism 7 includes: a box body 71, a water pump 72 and a cavity 73; the box body 71 is arranged outside (separately arranged) the housing 1; the cavity 73 is arranged on the motor shaft 2, and the cavity 73 is arranged in a space enclosed by the housing 1 and the cover 41; the water pump 72 is arranged on the box body 71; the water pump 72 is connected with a water injection pipe 74, and the water injection pipe 74 is arranged in the motor shaft 2 and penetrates out of the motor shaft 2 to be connected with the cavity 73; the cavity 73 is connected with a drain pipe 75, and the drain pipe 75 is arranged in the motor shaft 2 and connected with the box body 71; the water injection pipe 74 can be connected to the lower position of the cavity 73, the water discharge pipe 75 can be connected to the upper position of the cavity 73, the water pump 72 injects the water in the box body 71 into the cavity 73 through the water injection pipe 74 to absorb the heat generated by the rotation of the sealing ring 42, when the water in the cavity 73 rises to the position of the water discharge pipe 75, the water in the cavity 73 enters the box body 71 through the water discharge pipe 75 to discharge the absorbed heat, and the cavity 73 can also block the heat to prevent the heat from being transferred into the shell 1; when the brushless direct current motor of sealed permanent magnetism is installed on electric automobile, box body 71 can set up on the chassis of car, and the air current that produces through the car motion reduces the temperature of the interior water of box body 71 for the temperature that gets into the interior water of cavity 73 is less than the temperature in the space that casing 1 and lid 41 enclose far away, and the heat dissipation of being convenient for.
In summary, the utility model comprises a shell 1 and a motor shaft 2, wherein the motor shaft 2 penetrates through the shell 1; the bearing 3 is sleeved on the motor shaft 2, and the bearing 3 is arranged between the shell 1 and the motor shaft 2; sealing mechanism 4, sealing mechanism 4 sets up on the outer wall of casing 1, and sealing mechanism 4 covers and establishes on bearing 3, realized the sealed between motor shaft 2 and the casing 1, avoid impurity to get into casing 1 and influence the performance and the life of motor.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.
Claims (7)
1. A sealed permanent magnet brushless DC motor, comprising:
a shell body, a plurality of first connecting rods and a plurality of second connecting rods,
the motor shaft penetrates through the shell;
the bearing is sleeved on the motor shaft and is arranged between the shell and the motor shaft;
a sealing mechanism disposed on an outer wall of the housing and covering the bearing.
2. The encapsulated permanent magnet brushless DC motor of claim 1,
the sealing mechanism includes: a cover body and a sealing ring;
the cover body is connected with the outer wall of the shell and covers the bearing;
the sealing ring is sleeved on the motor shaft and arranged between the cover body and the motor shaft.
3. The encapsulated permanent magnet brushless DC motor of claim 2,
the sealed permanent magnet brushless dc motor further includes: a stator and a rotor;
the stator is arranged on the motor shaft;
the rotor is arranged on the inner wall of the shell;
the rotor is disposed around the stator.
4. A sealed permanent magnet brushless DC motor according to claim 3,
a plurality of air channels are formed in the outer wall of the shell;
the air duct is communicated with the atmosphere outside the shell.
5. The encapsulated permanent magnet brushless DC motor of claim 4,
the air duct is arc-shaped;
the air ducts are circumferentially arranged along the motor shaft in the side wall of the shell.
6. The encapsulated permanent magnet brushless DC motor of claim 5,
the sealed permanent magnet brushless dc motor further includes: a water cooling mechanism;
the water cooling mechanism is arranged in a space enclosed by the shell and the cover body;
the water cooling mechanism is suitable for dissipating heat between the shell and the cover body.
7. The encapsulated permanent magnet brushless DC motor of claim 6,
the water cooling mechanism includes: the water pump comprises a box body, a water pump and a cavity;
the box body is arranged outside the shell;
the cavity is arranged on the motor shaft and is arranged in a space enclosed by the shell and the cover body;
the water pump is arranged on the box body;
the water pump is connected with a water injection pipe, and the water injection pipe is arranged in the motor shaft and penetrates out of the motor shaft to be connected with the cavity;
the cavity is connected with a drain pipe, and the drain pipe is arranged in the motor shaft and connected with the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123405869.9U CN216530846U (en) | 2021-12-31 | 2021-12-31 | Sealed permanent magnet brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123405869.9U CN216530846U (en) | 2021-12-31 | 2021-12-31 | Sealed permanent magnet brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216530846U true CN216530846U (en) | 2022-05-13 |
Family
ID=81514765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123405869.9U Active CN216530846U (en) | 2021-12-31 | 2021-12-31 | Sealed permanent magnet brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216530846U (en) |
-
2021
- 2021-12-31 CN CN202123405869.9U patent/CN216530846U/en active Active
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