CN211720348U - Heat dissipation type motor rotor device - Google Patents
Heat dissipation type motor rotor device Download PDFInfo
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- CN211720348U CN211720348U CN202021953699.0U CN202021953699U CN211720348U CN 211720348 U CN211720348 U CN 211720348U CN 202021953699 U CN202021953699 U CN 202021953699U CN 211720348 U CN211720348 U CN 211720348U
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- rotor
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- heat dissipation
- safety cover
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Abstract
The utility model relates to a heat dissipation type motor rotor device, the device includes the rotor body of tube-shape, rotor body's outside is equipped with a rotor housing, fixed a rotor bearing that is equipped with in rotor body's inside, rotor bearing's one end rotates with the bearing locating plate to be connected, surface at rotor body evenly is equipped with a plurality of cooling fin, contactless between the medial surface of cooling fin top and rotor housing, inside at rotor body is equipped with a plurality of louvres, bearing locating plate and rotor housing fixed connection, rotor housing's free end links to each other with a safety cover. The utility model provides a heat dissipation type motor rotor device, simple structure, simple to operate can realize good radiating effect, ensures the normal operation of motor.
Description
Technical Field
The utility model relates to an electrical equipment technical field, in particular to heat dissipation type motor rotor device.
Background
As more and more electric machines enter people's lives, various electric motor rotors have also been widely used in our lives. The motor is composed of a rotor and a stator, and is used for realizing conversion between electric energy and mechanical energy and between mechanical energy and electric energy, and is generally used for most household appliances such as: the core driving source of compressor, refrigerator and electric fan.
The motor generally pursues positioning accuracy and torque output, the current is generally large, the harmonic component is high, and the frequency of current alternation also changes along with the rotating speed, so that the rotor generally has the condition of serious heating, if no effective measure is taken, low-cycle fatigue and creep loss of the rotor can be caused, and even safety accidents can be caused.
Therefore, how to design a motor rotor with complete efficacy, simple structure and good heat dissipation performance is always a problem needing research and optimization in the technical field of motor rotors.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model discloses an in order to solve prior art field motor rotor, the structure is complicated, and heat dispersion subalternation problem.
The utility model provides a heat dissipation type motor rotor device, wherein, rotor body including the tube-shape, rotor body's outside is equipped with a rotor housing rotor body's inside is fixed and is equipped with a rotor bearing, rotor bearing's one end and bearing locating plate rotate to be connected rotor body's surface evenly is equipped with a plurality of cooling fin, the cooling fin top with contactless between rotor housing's the medial surface rotor body's inside is equipped with a plurality of louvres, the bearing locating plate with rotor housing fixed connection, rotor housing's free end links to each other with a safety cover.
The utility model provides a heat dissipation type motor rotor device rotor body's surface evenly is equipped with a plurality of cooling fin, the cooling fin top with contactless between the medial surface of rotor housing rotor body's inside is equipped with a plurality of louvres. The rotor body drives the cooling fins to rotate under the condition of rotation, and external cold air is sucked into the rotor housing, so that heat generated when the rotor body rotates is taken away from the surface of the rotor body. Meanwhile, an air channel is formed in the heat dissipation holes, and when the rotor body rotates at a high speed, air passes through the heat dissipation holes to take away heat inside the rotor body.
The heat dissipation type motor rotor device is characterized in that the rotor body is cylindrical, the cooling fins are annularly distributed around the outer side edge of the rotor body, and the length of the connecting position of the cooling fins and the outer side edge of the rotor body is smaller than that of the top ends of the cooling fins.
The heat dissipation type motor rotor device is characterized in that rotor bearing protrusions are arranged on the surface of the rotor bearing, the number of the rotor bearing protrusions is 3, the directions of heat dissipation holes in the inner side of the rotor body are parallel to the rotor bearing, the heat dissipation holes penetrate through the rotor body along the axial direction, and the number of the heat dissipation holes is 10.
The heat dissipation type motor rotor device is characterized in that the rotor housing comprises a cylindrical housing body and a housing fixing part arranged at one end of the housing body, the housing fixing part is circular, the outer diameter of the housing fixing part is larger than the outer diameter of the free tail end of the housing body, a housing fixing part screw hole is formed in the housing fixing part, and the outer diameter of the free tail end of the housing body is the same as the outer diameter of the safety cover.
The heat dissipation type motor rotor device is characterized in that the safety cover is made of a magnetic material, a safety cover support is arranged in the safety cover, the number of the safety cover supports is 3, each free end of the safety cover support is fixedly connected with a support fixing portion, a fixing portion through hole is formed in the support fixing portion, and the safety cover faces one side of the rotor housing and is provided with a safety cover filter screen.
The heat dissipation type motor rotor device is characterized in that a bearing positioning plate screw hole is formed in the surface of the bearing positioning plate and matched with the housing fixing part, a bearing positioning plate shaft groove is formed in the bearing positioning plate, and the rotor bearing is fixedly clamped with the rotor body through the bearing positioning plate shaft groove.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part may be learned by the practice of the above-described techniques of the disclosure, or may be learned by practice of the disclosure.
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
Fig. 1 is a schematic view of an overall structure of a heat dissipation type motor rotor device according to an embodiment of the present invention;
fig. 2 is a schematic view showing an overall structure of a rotor body in the heat dissipation type motor rotor apparatus shown in fig. 1;
fig. 3 is an enlarged schematic structural view of a portion B of the heat dissipation type motor rotor apparatus shown in fig. 1;
fig. 4 is a schematic structural view of a rotor housing in the heat dissipation type motor rotor apparatus shown in fig. 1;
fig. 5 is an enlarged schematic structural view of a portion a of the heat dissipation type motor rotor apparatus shown in fig. 1;
fig. 6 is an enlarged schematic structural view of a portion C of the heat dissipation type motor rotor apparatus shown in fig. 1.
Description of the main symbols:
Detailed Description
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. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The first embodiment is as follows:
in the prior art, the condition of serious heating of a motor rotor generally exists. If no effective measures are taken, low-cycle fatigue and creep loss of the rotor can be caused, and even safety accidents can be caused.
In order to solve the technical problem, please refer to fig. 1 to 6, which are directed to an embodiment of the present invention to provide a heat dissipation type motor rotor apparatus, which includes a cylindrical rotor body 2, and a rotor cover 3 disposed outside the rotor body 2.
Specifically, a rotor bearing 21 is fixedly arranged inside the rotor body 2, and one end of the rotor bearing 21 is rotatably connected to the bearing positioning plate 1. Further, as can be seen from fig. 2, the surface of the rotor bearing 21 is provided with a rotor bearing boss 211. In the present embodiment, the number of the rotor bearing protrusions 211 is 3. Meanwhile, a plurality of cooling fins 22 are uniformly provided on the outer surface of the rotor body 2, and the tips of the cooling fins 22 do not contact the inner surface of the rotor cover 3 during actual assembly.
In the present embodiment, a plurality of heat dissipation holes 23 are further provided inside the rotor body 2. In addition, the bearing positioning plate 1 is fixedly connected with the rotor housing 3, and the free end of the rotor housing 3 is connected with a safety cover 4. It can be understood that the heat dissipation inside the rotor body 2 is facilitated by providing the plurality of heat dissipation holes 23, thereby preventing safety accidents due to heat accumulation.
In the present embodiment, the rotor body 2 is cylindrical, and a plurality of cooling fins 22 are annularly distributed around the outer edge of the rotor body 2. As can be seen from fig. 2, the length of the cooling fins 22 where they are connected to the outer rim of the rotor body 2 is smaller than the length of the free ends of the cooling fins 22. That is, the cooling fins 22 are formed in a structure in which the upper ends are large and the lower ends are small. In practical application, the rotor body 2 drives the cooling fins 22 to rotate under the condition of rotation, and external cold air is sucked into the rotor housing 3, so that heat generated when the rotor body 2 rotates is taken away from the surface of the rotor body 2, and the effects of heat dissipation and temperature reduction are achieved.
In the present embodiment, it should be noted that the direction of the heat dissipation hole 23 inside the rotor body 2 is parallel to the axial direction of the rotor bearing 21, and the heat dissipation hole 23 penetrates through the rotor body 2 along the axial direction. It can be understood that the heat dissipation holes 23 form air passages, and when the rotor body 2 rotates at a high speed, air passes through the heat dissipation holes 23 to take away heat inside the rotor body 2. In the present embodiment, the number of the heat dissipation holes 23 is 10. It should be noted that the number of the heat dissipation holes 23 is not limited to 10, and may be specifically set according to the actual application requirement.
In practical applications, the rotor housing 3 includes a cylindrical housing body 31 and a housing fixing portion 32 provided at one end of the housing body 31. The housing fixing portion 32 is circular. As can be seen from fig. 4, the housing fixing portion 32 has an outer diameter larger than that of the free end of the housing body 31. Meanwhile, the housing fixing portion 32 is provided with a housing fixing portion screw hole 321, and the housing fixing portion screw hole 321 is fixedly connected with the bearing positioning plate screw hole 11 through a screw. The outer diameter of the free end of the housing body 31 is the same as that of the safety cap 4.
In the present embodiment, the safety cover 4 is made of a magnet material, and the rotor housing 3 and the safety cover 4 are coupled to each other by magnetic attraction. Meanwhile, the safety cover 4 is provided with safety cover holders 41 in the middle, and the number of the safety cover holders 41 is 3. The free end of each safety cover bracket 41 is fixedly connected with the bracket fixing portion 42, a fixing portion through hole 421 is formed in the bracket fixing portion 42, and a safety cover filter 43 is disposed on one side of the safety cover 4 facing the rotor housing 3.
The surface of the bearing positioning plate 1 is provided with a bearing positioning plate screw hole 11, and the bearing positioning plate screw hole 11 is matched with the housing fixing part 32. In practical application, the bearing positioning plate 1 is provided with a bearing positioning plate shaft groove 12, and the rotor bearing 21 is fixedly clamped with the rotor body 2 through the bearing positioning plate shaft groove 12.
The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The utility model provides a heat dissipation type motor rotor device, its characterized in that, includes the rotor body of tube-shape, rotor body's outside is equipped with a rotor housing rotor body's inside is fixed and is equipped with a rotor bearing, rotor bearing's one end and bearing locating plate rotate to be connected rotor body's surface evenly is equipped with a plurality of cooling fin, the cooling fin top with contactless between rotor housing's the medial surface rotor body's inside is equipped with a plurality of louvres, the bearing locating plate with rotor housing fixed connection, rotor housing's free end links to each other with a safety cover.
2. The heat dissipating motor rotor assembly of claim 1, wherein the rotor body is cylindrical and the plurality of cooling fins are distributed annularly around the outer periphery of the rotor body, the cooling fins being connected to the outer periphery of the rotor body at a location less than the length of the tips of the cooling fins.
3. The heat dissipation type motor rotor device according to claim 1, wherein a rotor bearing protrusion is provided on a surface of the rotor bearing, the number of the rotor bearing protrusions is 3, the direction of the heat dissipation holes inside the rotor body is parallel to the rotor bearing, the heat dissipation holes axially penetrate through the rotor body, and the number of the heat dissipation holes is 10.
4. The heat dissipation type motor rotor device according to claim 3, wherein the rotor housing includes a cylindrical housing body and a housing fixing portion provided at one end of the housing body, the housing fixing portion is circular, an outer diameter of the housing fixing portion is larger than an outer diameter of a free end of the housing body, a housing fixing portion screw hole is provided in the housing fixing portion, and an outer diameter of the free end of the housing body is the same as an outer diameter of the safety cover.
5. The heat dissipation type motor rotor device according to claim 1, wherein the safety cover is made of a magnetic material, a safety cover holder is disposed in the safety cover, the number of the safety cover holders is 3, a free end of each safety cover holder is fixedly connected to a holder fixing portion, a fixing portion through hole is formed in the holder fixing portion, and a safety cover screen is disposed on a side of the safety cover facing the rotor housing.
6. The heat dissipation type motor rotor device according to claim 4, wherein a bearing positioning plate screw hole is formed in the surface of the bearing positioning plate, the bearing positioning plate screw hole is matched with the housing fixing portion, a bearing positioning plate axial groove is formed in the bearing positioning plate, and the rotor bearing is fixedly clamped with the rotor body through the bearing positioning plate axial groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021953699.0U CN211720348U (en) | 2020-09-09 | 2020-09-09 | Heat dissipation type motor rotor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021953699.0U CN211720348U (en) | 2020-09-09 | 2020-09-09 | Heat dissipation type motor rotor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211720348U true CN211720348U (en) | 2020-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021953699.0U Active CN211720348U (en) | 2020-09-09 | 2020-09-09 | Heat dissipation type motor rotor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211720348U (en) |
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2020
- 2020-09-09 CN CN202021953699.0U patent/CN211720348U/en active Active
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