CN218124501U - Heat dissipation motor - Google Patents

Abstract

The application relates to the technical field of motor heat dissipation, discloses a heat dissipation motor, include: main part, flabellum and annular safety cover. One end of the main body is provided with an output shaft; the fan blades are arranged on the output shaft, and the air outlet sides of the fan blades are arranged towards the main body; the annular protection cover is movably connected with the output shaft, and the fan blades are positioned in the annular protection cover. In this application, through set up the annular safety cover with output shaft swing joint on the output shaft, set up the flabellum in annular safety cover, the flabellum is connected with the output shaft, the rotation that utilizes the output shaft drives the flabellum and rotates, the annular safety cover with output shaft swing joint keeps static for the flabellum, reduce the acting loss of output shaft, the air-out side of flabellum blows off the heat dissipation air current towards the main part, dispel the heat to the main part, the setting of annular safety cover not only can protect the flabellum, can also reduce the influence of outside air current to the heat dissipation air current, make the heat dissipation air current blow to the main part of heat dissipation motor with gathering more, and the heat dissipation effect is improved.

Description

Heat dissipation motor

Technical Field

The application relates to the technical field of motor heat dissipation, in particular to a heat dissipation motor.

Background

At present, the motor often needs to drive work under the environment of high temperature or high fever, and service environment's abominable can lead to motor self to be difficult to the heat dissipation, and along with the temperature rising that the thermal accumulation that the motor produced can lead to motor self, output torque and motor speed reduce, influence the work efficiency of motor.

There is a fan of area heat dissipation flabellum among the correlation technique, including support housing, support housing is the tubbiness structure, and is connected with the pivot through the bearing in the middle of the inside left side of support housing, and the one end of pivot runs through and extends to support housing's the outside, and support housing's left side is connected with the motor through connecting the socle, and the output shaft of motor passes through the shaft coupling to be connected with the one end of pivot, evenly is equipped with the heat dissipation through-hole in the middle of support housing's the left side, the pivot is located support housing's inside left side and is equipped with the heat dissipation flabellum, and the pivot is located support housing's inside right-hand member and is equipped with the fan leaf of blowing, utilizes pivot drive heat dissipation flabellum to rotate, can dispel the heat to the motor.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the heat dissipation fan blade is directly exposed outside and is easily interfered by external air flow, so that the air outlet flow gathering effect of the heat dissipation fan blade is poor, the heat dissipation effect of the motor is poor, and the air inlet side of the blowing fan blade is opposite to the air inlet side of the heat dissipation fan blade, so that the air inlet amount of the heat dissipation fan blade can be reduced, and the heat dissipation effect of the motor is further reduced.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a heat dissipation motor to reduce the influence of external air flow on heat dissipation air flow, make heat dissipation air flow blow to heat dissipation motor main part more intensively, improve the radiating effect.

In some embodiments, a heat-dissipating electric machine, comprising: main part, flabellum and annular safety cover. One end of the main body is provided with an output shaft; the fan blades are arranged on the output shaft, and the air outlet sides of the fan blades face the main body; the annular protection cover is movably connected with the output shaft, and the fan blades are positioned in the annular protection cover.

Optionally, the outer periphery of the output shaft is sleeved with a bearing seat, an installation bearing is arranged at the axis of the annular protection cover, the installation bearing is sleeved on the bearing seat, and the annular protection cover is movably connected with the bearing seat through the installation bearing.

Optionally, the mounting bearing is disposed at an axial center of an end surface of the annular protection cover facing away from the main body.

Alternatively, the outer peripheral wall of the mounting bearing is connected to the end face of the annular shield by a connecting rib.

Optionally, the connecting rib is provided with a plurality of, and a plurality of connecting ribs are evenly arranged along the periphery wall of the installation bearing, and an overflow port is arranged between adjacent connecting ribs.

Optionally, an annular mounting seat is arranged at the axis of the fan blade, and the annular mounting seat is sleeved on the outer peripheral wall of the output shaft.

Optionally, the inner wall of the annular mounting seat is provided with a pin groove, the output shaft is provided with a positioning pin corresponding to the pin groove, and the positioning pin penetrates through the output shaft and is inserted into the pin groove to fix the annular mounting seat.

Optionally, the periphery wall of output shaft is equipped with the screw thread, and one side that the annular mount pad faced the main part is equipped with the screw thread seat, and the periphery of output shaft is located to the screw thread seat cover, fixes the annular mount pad through the cooperation of screw thread seat and screw thread.

Optionally, the output shaft is threaded along part of the outer peripheral wall of the annular mounting to the body.

Optionally, the outer diameter of the annular boot is less than or equal to the diameter of the body.

The heat dissipation motor that this disclosed embodiment provided can realize following technological effect:

through set up the annular safety cover with output shaft swing joint on the output shaft, set up the flabellum in annular safety cover, the flabellum is connected with the output shaft, when this heat dissipation motor is worked, utilize the rotation of output shaft to drive the flabellum and rotate, the annular safety cover with output shaft swing joint keeps static for the flabellum, reduce the acting loss of output shaft, the air-out side of flabellum blows off the heat dissipation air current towards the main part, in order to dispel the heat to the main part, the setting of annular safety cover not only can protect the flabellum, can also reduce the influence of outside air current to the heat dissipation air current, make the heat dissipation air current blow to the main part of heat dissipation motor more with gathering, and the heat dissipation effect is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of a heat dissipation motor according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of an assembly of fan blades and an annular protective cover according to an embodiment of the disclosure;

FIG. 3 is a schematic view of an installation of an annular protective cover provided by an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a bearing seat provided by an embodiment of the present disclosure;

FIG. 5 is a schematic view of a fan blade according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of the assembly of the annular mounting seat and the output shaft provided by the disclosed embodiment;

FIG. 7 is a schematic structural view of a pin slot and a locating pin provided by an embodiment of the present disclosure;

FIG. 8 is another schematic view of the assembly of the annular mounting seat and the output shaft provided by the disclosed embodiment.

Reference numerals:

100. a main body;

200. an output shaft; 210. a bearing seat; 211. fixing the snap ring; 212. a card slot; 220. a thread;

300. a fan blade; 310. an annular mounting seat; 311. a through hole; 312. a limiting ring; 320. a pin slot; 330. positioning pins; 340. a threaded seat;

400. an annular protective cover; 410. mounting a bearing; 420. connecting ribs; 421. and a flow port.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

With reference to fig. 1 to 8, an embodiment of the present disclosure provides a heat dissipation motor, including: main body 100, fan blades 300 and annular protective shield 400. An output shaft 200 is arranged at one end of the main body 100; the fan blade 300 is arranged on the output shaft 200, and the air outlet side of the fan blade 300 faces the main body 100; the annular protection cover 400 is movably connected with the output shaft 200, and the fan blades 300 are positioned in the annular protection cover 400.

Adopt the heat dissipation motor that this disclosed embodiment provided, through set up the annular safety cover 400 with output shaft 200 swing joint on output shaft 200, set up flabellum 300 in annular safety cover 400, flabellum 300 is connected with output shaft 200, in this heat dissipation motor during operation, utilize the rotation of output shaft 200 to drive flabellum 300 and rotate, annular safety cover 400 with output shaft 200 swing joint keeps static for flabellum 300, reduce the acting loss of output shaft 200, the play wind side of flabellum 300 blows out the heat dissipation air current towards main part 100, in order to dispel the heat to main part 100, the setting of annular safety cover 400 not only can protect flabellum 300, can also reduce the influence of outside air current to the heat dissipation air current, make the heat dissipation air current blow to heat dissipation motor's main part 100 more with gathering, improve the radiating effect.

In the embodiment of the present disclosure, the output shaft 200 is utilized to drive the fan blade 300 to rotate to generate a heat dissipation airflow, the heat dissipation airflow blows to the main body 100 of the heat dissipation motor to dissipate heat of the heat dissipation motor, the heat generated by the heat dissipation motor changes along with the change of the rotation speed of the output shaft 200, when the rotation speed of the output shaft 200 is higher, the heat generated by the heat dissipation motor is more, but the rotation speed of the output shaft 200 driving the fan blade 300 is also higher, the amount of the generated heat dissipation airflow is also greater, and the heat dissipation motor is better dissipated by the heat dissipation airflow with a larger flow rate; when the rotating speed of the output shaft 200 is low, the heat generated by the heat dissipation motor is relatively low, the heat dissipation requirement is low, the rotating speed of the fan blade 300 is also low at the moment, the flow of the heat dissipation airflow is relatively reduced, the blown heat dissipation airflow of the fan blade 300 can change along with the change of the rotating speed of the heat dissipation motor, namely the flow of the heat dissipation airflow can change along with the change of the heat dissipation requirement, so that the flow of the heat dissipation airflow is matched with the heat productivity of the heat dissipation motor, and the wind noise is reduced while the heat dissipation effect is ensured.

Optionally, the fan blades 300 are in the same plane as the annular shield 400. In this way, the annular protection cover 400 can surround the fan blade 300, so as to protect the fan blade 300 better, and the heat dissipation airflow blown by the fan blade 300 is blown toward the main body 100 of the heat dissipation motor more intensively by the annular protection cover 400.

Alternatively, the thickness of the fan blade 300 is smaller than the thickness of the annular protection cover 400 in the axial direction of the annular protection cover 400. In this way, the fan blade 300 can be better installed in the annular protection cover 400, and the inner ring of the annular protection cover 400 plays a role of collecting the heat dissipation airflow blown by the fan blade 300, so that the heat dissipation airflow is blown more intensively to the main body 100 of the heat dissipation motor to dissipate the heat.

Optionally, in the axial direction of the annular protection cover 400, an end surface of the fan blade 300 facing away from the main body 100 and an end surface of the annular protection cover 400 facing away from the main body 100 are in the same plane, and a flow concentration distance is provided between an end surface of the fan blade 300 facing the main body 100 and an end surface of the annular protection cover 400 facing the main body 100. Thus, since the air outlet side of the fan blade 300 is disposed toward the main body 100, an end surface of the fan blade 300 facing away from the main body 100 is an air inlet side, and an end surface of the fan blade 300 facing away from the main body 100 and an end surface of the annular protection cover 400 facing away from the main body 100 are disposed in the same plane, so that the air flow of the annular protection cover 400 facing away from the main body 100 can be more smoothly sucked by the fan blade 300, and a flow collecting distance is formed between the end surface of the fan blade 300 facing toward the main body 100 and the end surface of the annular protection cover 400 facing toward the main body 100, so that the inner annular surface of the annular protection cover 400 better collects the heat dissipation air flow blown by the fan blade 300, the heat dissipation air flow is blown more intensively toward the main body 100, and the heat dissipation effect of the main body 100 is improved.

L as shown in fig. 2 is the convergence distance.

Specifically, the convergence distance was 3 cm. Like this, make the ascending thickness of flabellum 300 axial moderate, when keeping the flabellum 300 amount of wind, make annular safety cover 400 can enough be better gather the flow to the heat dissipation air current, reduce the space of annular safety cover 400 and flabellum 300 and occupy, be convenient for this heat dissipation motor's installation.

Referring to fig. 3, in some embodiments, a bearing seat 210 is sleeved on the outer periphery of the output shaft 200, an installation bearing 410 is disposed at the axis of the annular protection cover 400, the installation bearing 410 is sleeved on the bearing seat 210, and the annular protection cover 400 is movably connected to the bearing seat 210 through the installation bearing 410. In this way, by providing the bearing seat 210 at the outer periphery of the output shaft 200, the annular protection cover 400 is movably connected with the bearing seat 210 through the mounting bearing 410 provided at the axial center part thereof, and the mounting bearing 410 is sleeved at the outer periphery of the bearing seat 210, so that the annular protection cover 400 can keep static relative to the output shaft 200 when the output shaft 200 rotates by utilizing the characteristic of the mounting bearing 410, thereby reducing the work loss of the output shaft 200, the stability of the annular protection cover 400 is improved by the connection mode of the mounting bearing 410 and the bearing seat 210, the annular protection cover 400 is not easy to deviate, and further the rotation stability of the output shaft 200 is improved.

Specifically, the mounting bearing 410 is a ball bearing, an inner annular surface of the ball bearing is fixedly sleeved on the periphery of the bearing seat 210, and an outer annular surface of the ball bearing is connected with the annular protection cover 400. Therefore, the friction coefficient of the ball bearing is small, the inner annular surface of the ball bearing is fixedly sleeved on the periphery of the bearing seat 210, the outer annular surface is connected with the annular protection cover 400, under the condition that the output shaft 200 rotates, the bearing seat 210 rotates synchronously along with the output shaft 200, and the annular protection cover 400 connected with the outer annular surface can keep static relative to the output shaft 200 by utilizing the relative rotation between the inner annular surface and the outer annular surface of the ball bearing, so that the work loss of the output shaft 200 is further reduced, and the power consumption of the heat dissipation motor is further reduced.

Optionally, one end of the bearing seat 210 facing away from the main body 100 is provided with a fixed snap ring 211, a position of the outer circumference of the output shaft 200 corresponding to the fixed snap ring 211 is provided with a snap groove 212, and the fixed snap ring 211 is snapped in the snap groove 212. Therefore, the bearing seat 210 is fixed relative to the output shaft 200 by clamping the fixing snap ring 211 in the clamping groove 212, so that the stability of the bearing seat 210 is improved, the bearing seat 210 can better support the mounting bearing 410, and the vibration generated when the output shaft 200 rotates is reduced.

Optionally, the mounting bearing 410 is disposed at the axial center of an end surface of the annular protection cover 400 facing away from the main body 100. Like this, the one end of annular safety cover 400 towards main part 100 is the air-out end of flabellum 300, consequently with installation bearing 410 set up in the axle center department of annular safety cover 400 back to a terminal surface of main part 100, avoid installation bearing 410 to stop the heat dissipation air current that flabellum 300 blew out, make better blowing to this heat dissipation motor's main part 100 of heat dissipation air current, cool down the main part 100 of heat dissipation motor, installation bearing 410 is located axle center department moreover, make the holding power that annular safety cover 400 connected with installation bearing 410 received more even, the stability of annular safety cover 400 has been improved.

As shown in connection with fig. 4, in some embodiments, the outer peripheral wall of the mounting bearing 410 is connected to the end face of the annular shield 400 by a connecting rib 420. In this way, the outer circumferential wall of the mounting bearing 410 is connected with the end face of the annular protection cover 400 through the connecting rib 420, so that the connection stability between the mounting bearing 410 and the annular protection cover 400 is improved, the stability of the annular protection cover 400 is enhanced, and the fan blade 300 is better protected.

Alternatively, the connection rib 420 is provided in plurality, and the plurality of connection ribs 420 are uniformly arranged along the outer circumferential wall of the mounting bearing 410, and the flow passing port 421 is provided between adjacent connection ribs 420. Like this, be connected mounting bearing 410 with annular protection cover 400 through a plurality of splice bars 420 that evenly arrange along mounting bearing 410's periphery wall, further improved annular protection cover 400's stability, and have the mouth 421 of crossing between adjacent splice bar 420, make the air current smoothly flow to the air inlet side of flabellum 300 through the mouth 421 of flowing through, reduce the influence that the setting of splice bar 420 and mounting bearing 410 was intake to flabellum 300, guarantee flabellum 300's intake, improve the flow of the radiating air current that flabellum 300 blew out.

Specifically, the connecting ribs 420 are four, and are respectively distributed in the 12 o 'clock direction, the 3 o' clock direction, the 6 o 'clock direction and the 9 o' clock direction of the outer peripheral wall of the mounting bearing 410, and each connecting rib 420 is connected with the outer peripheral wall of the mounting bearing 410 and the end surface of the annular protection cover 400. Thus, by providing four connecting ribs 420 and connecting the four connecting ribs 420 with the outer peripheral wall of the mounting bearing 410 and the end surface of the annular protection cover 400 at positions in the 12 o 'clock direction, the 3 o' clock direction, the 6 o 'clock direction and the 9 o' clock direction, the connection stability of the annular protection cover 400 and the mounting bearing 410 is further improved, and the stress uniformity of the annular protection cover 400 is improved.

As shown in fig. 5, 6 and 7, in some embodiments, an annular mounting seat 310 is disposed at the axial center of the fan blade 300, and the annular mounting seat 310 is sleeved on the outer circumferential wall of the output shaft 200. Like this, establish the mode of establishing at the periphery wall of output shaft 200 with flabellum 300 installation through annular mount pad 310 cover, make the stability of flabellum 300 stronger, drive annular mount pad 310 when output shaft 200 rotates and rotate to drive flabellum 300 and rotate, the power that makes flabellum 300 receive is more even, improves flabellum 300 pivoted stability, and the radiating air current that makes flabellum 300 blow out is more even.

Optionally, the annular mounting seat 310 has a through hole 311 on the inner side, a stop ring 312 is disposed in the through hole 311, and the output shaft 200 is disposed through the through hole 311 of the annular mounting seat 310. In this way, the through hole 311 is provided to more stably sleeve the annular mounting seat 310 on the output shaft 200, and the limiting ring 312 is provided in the through hole 311 to limit the position of the annular mounting seat 310, so that the annular mounting seat 310 can rotate along with the output shaft 200, thereby driving the fan blades 300 through the output shaft 200.

In a specific embodiment, the inner wall of the annular mounting seat 310 is provided with a pin slot 320, the output shaft 200 is provided with a positioning pin 330 corresponding to the pin slot 320, and the positioning pin 330 penetrates through the output shaft 200 and is inserted into the pin slot 320 to fix the annular mounting seat 310. In this way, the fixing manner that the positioning pin 330 penetrates through the output shaft 200 and is inserted into the pin slot 320 further improves the stability of the annular mounting seat 310, so that the annular mounting seat 310 can better rotate along with the output shaft 200, and the fan blade 300 is driven to rotate to generate a heat dissipation airflow.

Optionally, the pin groove 320 is disposed on an inner wall of the stop collar 312, the output shaft 200 is provided with a pin hole, and the positioning pin 330 passes through the pin hole and is inserted into the pin groove 320 on the inner wall of the stop collar 312 to position the annular mounting seat 310. Thus, the pin groove 320 is arranged on the inner wall of the limit ring 312, the pin hole is arranged on the output shaft 200, the positioning mode that the positioning pin 330 penetrates through the pin hole and is inserted into the pin groove 320 is utilized, the annular mounting seat 310 is more stably fixed on the output shaft 200 through the matching of the positioning pin 330 and the limit ring 312, and the rotating stability of the fan blade 300 is further improved.

Specifically, two pin grooves 320 are provided, the two pin grooves 320 are respectively provided on the opposite inner walls of the limit ring 312, the positioning pin 330 passes through the pin hole on the output shaft 200, and two ends of the positioning pin 330 are respectively inserted into the two pin grooves 320 to position the annular mounting seat 310. Like this, set up two cotter 320 on the relative both sides inner wall of spacing ring 312, the both ends of locating pin 330 all stretch out the pinhole and insert respectively in two cotter 320, avoid locating pin 330 to take place to drop because external force such as tremble, further improve annular mount pad 310's stability.

Alternatively, the pin groove 320 has an opening toward the heat-dissipating motor main body 100. Therefore, the fan blade 300 and the annular mounting seat 310 can be conveniently detached, when the fan blade 300 needs to be detached and maintained, the output shaft 200 is pulled along the direction towards the main body 100, the positioning pin 330 is separated from the pin groove 320 along the opening of the pin groove 320, and the difficulty in detaching the annular mounting seat 310 is reduced.

In another specific embodiment, as shown in fig. 8, the outer peripheral wall of the output shaft 200 is provided with a thread 220, one side of the annular mounting seat 310 facing the main body 100 is provided with a thread seat 340, the thread seat 340 is sleeved on the outer periphery of the output shaft 200, and the annular mounting seat 310 is fixed by the cooperation of the thread seat 340 and the thread 220. Thus, the outer peripheral wall of the output shaft 200 is provided with the threads 220, the side of the annular mounting seat 310 facing the main body 100 is provided with the thread seat 340, the fan blades 300 are installed in the annular protection cover 400, and the end, back to the main body 100, of the annular protection cover 400 is provided with the bearing seat 210, so that the end, back to the main body 100, of the annular mounting seat 310 can be blocked and limited by the bearing seat 210, the annular mounting seat 310 is positioned in a mode that the thread seat 340 is screwed on the threads 220 on the outer peripheral wall of the output shaft 200, the stability of the annular mounting seat 310 is improved, and meanwhile, the annular mounting seat 310 and the fan blades 300 can be conveniently installed and detached.

Optionally, the threaded seat 340 is a nut structure. Therefore, the threaded seat 340 is sleeved on the output shaft 200, and the threaded seat 340 is matched with the threads 220 on the outer peripheral wall of the output shaft 200, so that the annular mounting seat 310 can be conveniently mounted and dismounted.

Optionally, the output shaft 200 is provided with threads 220 along the annular mounting seat 310 to part of the outer peripheral wall of the body 100. In this way, since the outer peripheral wall of the output shaft 200 is provided with the threads 220 for the main purpose of mounting and positioning the annular mounting seat 310 through the threaded seat 340, and the end of the annular mounting seat 310 facing away from the main body 100 is blocked by the bearing seat 210, the threads 220 do not need to be provided on the entire outer peripheral wall of the output shaft 200, and the threads 220 are provided on the output shaft 200 along the outer peripheral wall of the annular mounting seat 310 to the main body 100, so that the annular mounting seat 310 can be mounted through the threaded seat 340, and the processing cost of the output shaft 200 is reduced.

In some embodiments, the outer diameter of the annular boot 400 is less than or equal to the diameter of the body 100. Thus, the heat dissipation motor needs to be installed in some mechanical structures for use, and the installation space of the heat dissipation motor is limited, so that the outer diameter of the annular protection cover 400 is smaller than or equal to the diameter of the main body 100, the outer periphery of the annular protection cover 400 does not protrude out of the range of the outer periphery of the main body 100 in the axial direction, and when the heat dissipation motor is installed, the occupied space of the annular protection cover 400 is reduced, and the heat dissipation motor is convenient to install and use.

Specifically, the outer diameter of the annular shield 400 is equal to the diameter of the body 100. Therefore, the inner side of the annular protection cover 400 has enough space for installing the fan blades 300, the influence of the size of the annular protection cover 400 on the size of the fan blades 300 is reduced, enough heat dissipation airflow can be blown out to dissipate heat of the main body 100 when the fan blades 300 rotate, meanwhile, the space occupation of the annular protection cover 400 is reduced, and the heat dissipation motor is convenient to install and use.

In some installation examples, the main body 100 of the heat dissipation motor is fixed in a mechanical structure for use, the end of the output shaft 200 opposite to the main body 100 is connected to a mechanical component needing to do work, and when the output shaft 200 does work externally, the output shaft 200 is utilized to drive the fan blades 300 to rotate to dissipate heat of the heat dissipation motor main body 100.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A heat-dissipating motor, comprising:

a main body (100) having an output shaft (200) at one end;

the fan blade (300) is arranged on the output shaft (200), and the air outlet side of the fan blade (300) faces the main body (100);

annular safety cover (400), with output shaft (200) swing joint, flabellum (300) are located in annular safety cover (400).

2. The heat dissipation motor as claimed in claim 1, wherein a bearing seat (210) is sleeved on an outer periphery of the output shaft (200), a mounting bearing (410) is disposed at an axis of the annular protection cover (400), the mounting bearing (410) is sleeved on the bearing seat (210), and the annular protection cover (400) is movably connected with the bearing seat (210) through the mounting bearing (410).

3. The heat-dissipating electric motor according to claim 2, wherein the mounting bearing (410) is disposed at an axial center of an end surface of the annular protection cover (400) facing away from the main body (100).

4. The heat-dissipating motor according to claim 2, wherein the outer peripheral wall of the mounting bearing (410) is connected to the end face of the annular shield (400) by a connecting rib (420).

5. The heat dissipation motor as recited in claim 4, wherein a plurality of the connection ribs (420) are provided, and the plurality of the connection ribs (420) are uniformly arranged along the outer circumferential wall of the mounting bearing (410), and an overflow port (421) is provided between adjacent connection ribs (420).

6. The heat dissipation motor according to any one of claims 1 to 5, wherein an annular mounting seat (310) is disposed at an axial center of the fan blade (300), and the annular mounting seat (310) is sleeved on an outer peripheral wall of the output shaft (200).

7. The heat dissipation motor of claim 6, wherein the inner wall of the annular mounting seat (310) is provided with a pin groove (320), the output shaft (200) is provided with a positioning pin (330) corresponding to the pin groove (320), and the positioning pin (330) passes through the output shaft (200) and is inserted into the pin groove (320) to fix the annular mounting seat (310).

8. The heat dissipation motor of claim 6, wherein the outer peripheral wall of the output shaft (200) is provided with a thread (220), one side of the annular mounting seat (310) facing the main body (100) is provided with a thread seat (340), the thread seat (340) is sleeved on the outer periphery of the output shaft (200), and the annular mounting seat (310) is fixed through the matching of the thread seat (340) and the thread (220).

9. The heat-dissipating electric motor according to claim 8, wherein the output shaft (200) is provided with a thread (220) along a portion of the outer peripheral wall of the annular mounting seat (310) to the main body (100).

10. The heat-dissipating electric machine according to any one of claims 1 to 5, wherein an outer diameter of the annular protective cover (400) is smaller than or equal to a diameter of the main body (100).

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