CN213637309U - Heat dissipation type direct drive motor - Google Patents
Heat dissipation type direct drive motor Download PDFInfo
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- CN213637309U CN213637309U CN202022130101.4U CN202022130101U CN213637309U CN 213637309 U CN213637309 U CN 213637309U CN 202022130101 U CN202022130101 U CN 202022130101U CN 213637309 U CN213637309 U CN 213637309U
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- heat dissipation
- rotor
- drive motor
- direct drive
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Abstract
The utility model discloses a heat dissipation type direct drive motor, which comprises a casing, wherein an installation cavity extending left and right is arranged in the casing, and a plurality of heat dissipation grooves are arranged on the left and right end surfaces of the casing; the rotor is columnar, a plurality of heat dissipation channels which are communicated from left to right are arranged on the rotor, the heat dissipation channels are arranged at intervals in a ring shape by taking the axis of the rotor as the center, and the rotor is rotatably arranged in the mounting cavity; the stator is fixedly installed in the installation cavity, and the rotor and the stator are coaxially arranged. The heat dissipation channel can timely transmit the heat inside the rotor to the two ends of the casing along the axial direction of the rotor, and meanwhile, the heat dissipation groove in the end face of the casing increases the heat dissipation area of the end face of the casing in contact with air, so that the transmission speed of the heat inside the motor along the axial direction of the rotor is increased, the heat inside the motor can be transmitted along the axial direction of the motor output shaft, and the heat dissipation effect of the motor is improved.
Description
Technical Field
The utility model relates to a motor field, in particular to heat dissipation type directly drive motor.
Background
In recent years, permanent magnet direct drive motors are rapidly developed, and market requirements are continuously improved. The direct-drive servo motor has the advantages of low loss, high torque density, high control precision, direct drive load and the like, and plays a certain role in the market. The existing direct-drive motor comprises a machine shell, a stator and a rotor which are installed in the machine shell, a large amount of heat can be generated inside the motor in the operation process of the motor, the heat dissipation area contacted with the outside air is increased by arranging heat dissipation ribs on the outer wall of the machine shell in the traditional heat dissipation mode, the heat dissipation mode can only dissipate the outer peripheral wall of the motor, namely, the heat inside the motor can only be transferred along the radial direction from the axis, the problem of low heat transfer efficiency exists, the axis position of the motor is kept to operate in a high-temperature state, and the service life of the motor is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heat dissipation type directly drives motor to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a heat dissipation type directly drives motor, it includes: the motor comprises a shell, a rotor and a stator, wherein an installation cavity is arranged in the shell, and a plurality of radiating grooves are formed in the left end surface and the right end surface of the shell; the rotor is columnar, the axis of the rotor extends leftwards and rightwards, a plurality of heat dissipation channels which are communicated leftwards and rightwards are arranged on the rotor, the heat dissipation channels are arranged at intervals in a ring shape by taking the axis of the rotor as the center, and the rotor is rotatably arranged in the mounting cavity; the stator is fixedly installed in the installation cavity, and the rotor and the stator are coaxially arranged.
The utility model has the advantages that: in the motor operation process, the heat dissipation channel can timely transmit the heat inside the rotor to the two ends of the casing along the axial direction of the rotor, and meanwhile, the heat dissipation groove in the end face of the casing increases the heat dissipation area of the end face of the casing in contact with air, so that the transmission speed of the heat inside the motor along the axial direction of the rotor is increased, the heat inside the motor can be transmitted along the axial direction of the motor output shaft, and the heat dissipation effect of the motor is improved.
As a further improvement of the above technical solution, the left and right end faces of the casing are provided with shaft holes coaxially arranged with the rotor, the rotor is provided with an output shaft passing through the shaft holes from the installation cavity to the outside, the output shaft and the shaft holes are coaxially arranged, the plurality of heat dissipation grooves are formed with a plurality of heat dissipation groups, and the plurality of heat dissipation groups are radially arranged at intervals with the axis of the shaft holes as the center.
The heat dissipation grooves are arranged in the form of the heat dissipation group, so that heat dissipation of the heat dissipation grooves is not interfered with each other, the heat dissipation effect is improved, and meanwhile the heat dissipation grooves are not easy to damage.
As a further improvement of the above technical solution, the heat dissipation grooves of the heat dissipation group are arranged radially from inside to outside along the shaft hole.
The heat dissipation groove formed by the shaft hole radially from inside to outside is attractive, the difficulty in manufacturing is low, and mass manufacturing is facilitated.
As a further improvement of the above technical solution, the heat dissipation grooves of the heat dissipation groups are arc-shaped with the axis of the shaft hole as the center of circle, the arc length of each heat dissipation groove on the heat dissipation group is gradually increased from the inside to the outside in the radial direction of the shaft hole, the surface area of the left and right end faces of the heat dissipation groove can be fully utilized, the layout of the heat dissipation grooves is more reasonable, and the heat dissipation area increased by the heat dissipation grooves is larger.
As a further improvement of the above technical solution, the casing includes two end covers and a cylinder extending left and right, the two end covers are respectively disposed at left and right ends of the cylinder, the two end covers are provided with shaft holes coaxially disposed with the rotor, and two ends of the rotor are respectively rotatably connected with the two shaft holes; the direct-drive motor further comprises locking screws, a plurality of mounting holes are formed in the outer edges of the two end covers and are arranged in an annular interval mode by taking the centers of the shaft holes as circle centers, locking screw holes are correspondingly formed in the end faces of the machine barrel, the locking screws penetrate through the mounting holes and the locking screw holes, the motor is convenient to disassemble and maintain, and the mounting holes formed in the interval mode can be better fixed.
As a further improvement of the above technical solution, the outer circumferential surface of the cylinder is provided with a plurality of heat dissipation ribs, and the plurality of heat dissipation ribs are arranged at intervals along the outer circumferential surface of the casing.
Some heats are from radially transmitting to the casing outer wall along the shaft hole in the motor operation process, and the heat radiating area of the periphery wall of casing and outside air contact can be increased to a plurality of heat dissipation muscle, dispels the heat to the periphery wall of casing, further improves the radiating effect.
As a further improvement of the technical scheme, the heat dissipation ribs are parallel to the axis of the cylinder.
The radiating ribs are integrally in a parallel distribution state, at the moment, the mutual influence of adjacent radiating spaces is small, and meanwhile, the radiating ribs in parallel distribution have small difficulty in manufacturing and are beneficial to mass manufacturing.
As a further improvement of the above technical solution, the outer circumferential surface of the cylinder is provided with a plurality of reinforcing ribs, the reinforcing ribs are parallel to the axis of the cylinder, the plurality of reinforcing ribs are arranged at intervals along the outer circumferential surface of the cylinder, and the height of the reinforcing ribs is greater than that of the heat dissipation ribs.
The reinforcing ribs are additionally arranged to protect the heat dissipation ribs, so that the heat dissipation ribs are not easy to damage.
As a further improvement of the above technical solution, the direct drive motor further comprises a rotating disc, the rotating disc is coaxially disposed on the output shaft with the output shaft, and the rotating disc is provided with a through hole.
The rotating disc makes things convenient for the output shaft to be connected with the outside other parts of motor, and the through-hole enables the inside heat that the motor produced and directly gives off through the through-hole, further improves the radiating effect.
As a further improvement of the above technical solution, a bearing assembly is disposed between the output shaft and the end cover, and the end cover is rotatably connected to the output shaft through the bearing assembly.
The bearing assembly comprises a thrust ball bearing or a deep groove ball bearing, and can reduce the friction coefficient in the power transmission process and keep the central position of the shaft fixed.
Drawings
The present invention will be further explained with reference to the drawings and examples;
fig. 1 is a schematic structural diagram of an angle of an embodiment of a heat dissipation type direct drive motor provided by the present invention;
fig. 2 is a schematic structural view of another angle of an embodiment of the heat dissipation type direct drive motor provided by the present invention;
fig. 3 is a sectional view of the heat dissipation type direct drive motor of fig. 1, in which two arrows indicate left and right directions, respectively.
Description of the drawings:
the casing 100, the mounting cavity 110, the heat dissipation groove 120, the shaft hole 130, the end cap 140, the mounting hole 141, the barrel 150, the locking screw hole 151, the heat dissipation rib 152 and the reinforcing rib 153;
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 3, the heat dissipation direct drive motor of the present invention has the following embodiments:
the direct drive motor of this embodiment includes: the motor comprises a casing 100, a rotor 200 and a stator 300, wherein an installation cavity 110 is arranged in the casing 100, and a plurality of heat dissipation grooves 120 are arranged on the left end surface and the right end surface of the casing 100. The heat dissipation groove 120 on the end surface of the casing 100 increases the heat dissipation area of the end surface of the casing 100 contacting with air, and improves the heat dissipation effect of the motor.
Further, shaft holes 130 are formed on both left and right end surfaces of the casing 100, the shaft holes 130 are coaxially formed with the rotor 200, the rotor 200 is provided with an output shaft 220 passing through the shaft holes 130 from the inside of the mounting cavity 110 to the outside, the output shaft 220 is coaxially formed with the shaft holes 130, a plurality of heat dissipation grooves 120 are formed with a plurality of heat dissipation groups, and the plurality of heat dissipation groups are radially arranged at intervals with the axis of the shaft hole 130 as the center. Referring to fig. 1, the number of the heat dissipation groups of this embodiment is 4, and in some other embodiments, the number of the heat dissipation groups may also be other numbers, which is not specifically limited by the present invention.
The heat dissipation grooves 120 are formed in the form of heat dissipation groups, so that heat dissipation of the heat dissipation grooves 120 is not interfered with each other, the heat dissipation effect is improved, and meanwhile the heat dissipation grooves 120 are not easy to damage.
Further, the heat dissipation grooves 120 of the heat dissipation group are arranged from inside to outside along the radial direction of the shaft hole 130. The heat dissipation groove 120 formed by the shaft hole 130 radially from the inside to the outside is beautiful, has small difficulty in manufacturing, and is beneficial to mass manufacturing.
Further, referring to fig. 1, the heat dissipation grooves 120 of the heat dissipation groups are arc-shaped with the axis of the shaft hole 130 as the center of a circle, the arc length of the heat dissipation groove 120 on each heat dissipation group gradually increases from inside to outside along the radial direction of the shaft hole 130, the heat dissipation grooves 120 can fully utilize the surface area of the surface areas of the left and right end surfaces, the layout of the heat dissipation grooves 120 is more reasonable, and the heat dissipation area increased by the heat dissipation grooves 120 is larger. In other embodiments, the heat dissipation groove 120 may have other shapes, such as a straight line shape, a curved shape, and the like.
The axis of the rotor 200 is extended left and right, the shape is cylindrical, the rotor 200 is provided with a plurality of heat dissipation channels 210 which are communicated left and right, the heat dissipation channels 210 are arranged at intervals in a ring shape by taking the axis of the rotor 200 as the center, and the rotor 200 is rotatably installed in the installation cavity 110; and a stator 300 fixedly installed in the installation cavity 110, wherein the rotor 200 is coaxially disposed with the stator 300.
In the operation process of the motor, the heat dissipation channel 210 can timely transmit the heat inside the rotor 200 to the two ends of the casing 100 along the axial direction of the rotor 200, and meanwhile, the heat dissipation groove 120 on the end surface of the casing 100 increases the heat dissipation area of the end surface of the casing 100 contacting with air, so that the transmission speed of the heat inside the motor along the axial direction of the rotor 200 is increased, the heat inside the motor can be transmitted along the axial direction of the motor output shaft 220, and the heat dissipation effect of the motor is improved.
Further, the casing 100 includes two end covers 140 and a cylinder 150 extending left and right, the two end covers 140 are respectively disposed at the left and right ends of the cylinder 150, the two end covers 140 are provided with shaft holes 130 coaxially disposed with the rotor 200, and the two ends of the rotor 200 are respectively rotatably connected with the two shaft holes 130; the direct-drive motor further comprises locking screws 400, a plurality of mounting holes 141 are formed in the outer edges of the two end covers 140, the mounting holes 141 are arranged in an annular interval mode by taking the center of the shaft hole 130 as a circle center, locking screw holes 151 are correspondingly formed in the end face of the machine barrel 150, the locking screws 400 penetrate through the mounting holes 141 and the locking screw holes 151, the motor is convenient to disassemble and maintain, and the mounting holes arranged in the interval mode can play a better fixing role.
Further, the outer circumferential surface of the cylinder 150 is provided with a plurality of heat dissipation ribs 152, and the plurality of heat dissipation ribs 152 are arranged at intervals along the outer circumferential surface of the casing 100.
Some heat is from radially transmitting to casing 100 outer wall along shaft hole 130 in the motor operation process, and the heat radiating area of the periphery wall that a plurality of heat dissipation muscle 152 can increase casing 100 and outside air contact dispels the heat to the periphery wall of casing 100, further improves the radiating effect, prolongs the life of motor.
Further, the heat dissipating ribs 152 are parallel to the axis of the barrel 150. In other embodiments, the heat dissipating ribs 152 may not be parallel to the axis of the casing 100, and the heat dissipating area may be increased to improve the heat dissipating effect.
The heat dissipation ribs 152 are integrally in a parallel distribution state, at this time, the mutual influence of the adjacent heat dissipation spaces is small, and meanwhile, the heat dissipation ribs 152 in parallel distribution have small difficulty in manufacturing, and are beneficial to mass manufacturing.
Furthermore, the outer peripheral surface of the cylinder 150 is provided with a plurality of ribs 153, the ribs 153 are parallel to the axis of the cylinder 150, the plurality of ribs 153 are arranged at intervals along the outer peripheral surface of the cylinder 150, and the height of the protrusion of the rib 153 is greater than the height of the protrusion of the heat dissipation rib 152.
The third reinforcing rib 153 is additionally arranged to protect the heat dissipation rib 152, so that the heat dissipation rib 152 is not easy to damage.
Further, the direct drive motor further comprises a rotating disc 500, the rotating disc 500 is coaxially arranged on the output shaft 220 with the output shaft 220, and a plurality of through holes 510 are formed in the rotating disc 500.
The rotating disc 500 facilitates the connection of the output shaft 220 with other parts outside the motor, and the plurality of through holes 510 enable the internal heat generated by the motor to be directly dissipated through the through holes 510, so that the heat dissipation effect is further improved. The utility model discloses do not do specific restriction to the quantity of through-hole.
Further, a bearing assembly 600 is disposed between the output shaft 220 and the end cap 140, and the end cap 140 is rotatably connected to the output shaft 220 through the bearing assembly 600.
The bearing assembly 600 includes a thrust ball bearing or a deep groove ball bearing, and the bearing assembly 600 can reduce a friction coefficient during power transmission and maintain a shaft center position fixed. In some other embodiments, for example the utility model discloses a heat dissipation type directly drives motor and uses on fan motor, and when fan motor hung upside down the installation, thrust ball bearing can bear decurrent thrust, improves deep groove ball bearing's life, and then improves fan motor's life.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.
Claims (10)
1. A direct drive motor of heat dissipation type, its characterized in that, it includes:
the heat dissipation device comprises a shell (100), wherein an installation cavity (110) is arranged in the shell, and a plurality of heat dissipation grooves (120) are formed in the left end surface and the right end surface of the shell;
the rotor (200) is columnar in appearance, the axis of the rotor (200) extends leftwards and rightwards, a plurality of heat dissipation channels (210) which are communicated leftwards and rightwards are arranged on the rotor (200), the heat dissipation channels (210) are annularly arranged at intervals by taking the axis of the rotor (200) as the center, and the rotor (200) is rotatably arranged in the installation cavity (110);
and the stator (300) is fixedly installed in the installation cavity (110), and the rotor (200) and the stator (300) are coaxially arranged.
2. The heat dissipation type direct drive motor according to claim 1, characterized in that:
the motor casing (100) about both ends face all be provided with shaft hole (130) that rotor (200) coaxial setting, rotor (200) are provided with follow installation cavity (110) are interior to pass outward output shaft (220) in shaft hole (130), output shaft (220) with shaft hole (130) coaxial setting, it is a plurality of heat dissipation recess (120) are formed with a plurality of heat dissipation groups, and are a plurality of heat dissipation group uses the axle center in shaft hole (130) is radial interval arrangement and sets up as the center.
3. The heat dissipation type direct drive motor according to claim 2, characterized in that:
the heat dissipation grooves (120) on each heat dissipation group are arranged from inside to outside along the radial direction of the shaft hole (130).
4. The heat dissipation type direct drive motor according to claim 3, characterized in that:
the heat dissipation grooves (120) of the heat dissipation groups are arc-shaped with the axis of the shaft hole (130) as the center of a circle, and the arc length of each heat dissipation groove (120) on each heat dissipation group is gradually increased from inside to outside along the radial direction of the shaft hole (130).
5. The heat dissipation type direct drive motor according to claim 2, characterized in that:
the machine shell (100) comprises two end covers (140) and a machine barrel (150) which extends left and right, the two end covers (140) are respectively arranged at the left end and the right end of the machine barrel (150), the two end covers (140) are provided with shaft holes (130) which are coaxial with the rotor (200), and the two ends of the rotor (200) are respectively rotatably connected with the two shaft holes (130);
the direct-drive motor further comprises locking screws (400), a plurality of mounting holes (141) are formed in the outer edges of the two end covers (140), the mounting holes (141) are arranged in an annular interval mode by taking the center of the shaft hole (130) as the circle center, locking screw holes (151) are correspondingly formed in the end face of the machine barrel (150), and the locking screws (400) penetrate through the mounting holes (141) and the locking screw holes (151).
6. The heat dissipation type direct drive motor according to claim 5, characterized in that:
the peripheral face of barrel (150) is provided with heat dissipation muscle (152), the quantity of heat dissipation muscle (152) is provided with a plurality ofly, and is a plurality of heat dissipation muscle (152) are followed the periphery of casing (100) is personally submitted the interval and is set up.
7. The heat dissipation type direct drive motor according to claim 6, characterized in that:
the heat dissipating ribs (152) are parallel to the axis of the barrel (150).
8. The heat dissipation type direct drive motor according to claim 6, characterized in that:
the outer peripheral face of barrel (150) is provided with strengthening rib (153), strengthening rib (153) with the axis of barrel (150) is parallel, the quantity of strengthening rib (153) is provided with a plurality ofly, and is a plurality of strengthening rib (153) are the interval setting along the periphery of barrel (150), the bellied height in strengthening rib (153) is greater than the bellied height of heat dissipation muscle (152).
9. The heat dissipation type direct drive motor according to claim 2, characterized in that:
the direct drive motor further comprises a rotating disc (500), the rotating disc (500) is coaxially connected with the output shaft (220), and a through hole (510) is formed in the rotating disc (500).
10. The heat dissipation type direct drive motor according to claim 5, characterized in that:
a bearing assembly (600) is arranged between the output shaft (220) and the end cover (140), and the end cover (140) is rotatably connected with the output shaft (220) through the bearing assembly (600).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022130101.4U CN213637309U (en) | 2020-09-24 | 2020-09-24 | Heat dissipation type direct drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022130101.4U CN213637309U (en) | 2020-09-24 | 2020-09-24 | Heat dissipation type direct drive motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213637309U true CN213637309U (en) | 2021-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022130101.4U Active CN213637309U (en) | 2020-09-24 | 2020-09-24 | Heat dissipation type direct drive motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213637309U (en) |
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2020
- 2020-09-24 CN CN202022130101.4U patent/CN213637309U/en active Active
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