Motor with heat dissipation function

Abstract

The utility model relates to the technical field of motors, in particular to a motor with a heat dissipation function, which comprises a shell, a rotor, a stator with a coil, an output rotating shaft and a bearing, the rotor is coaxially arranged in the stator, the stator is arranged in the shell, the rotor is connected with the output rotating shaft, the output rotating shaft penetrates through the shell, and the output rotating shaft is connected with the shell through the bearing; a plurality of first air ducts are arranged in the rotor, a plurality of second air ducts are arranged in the shell, the first air ducts are communicated with the second air ducts, and the second air ducts are communicated with the outside. The LED lamp is convenient to assemble and use, effective heat dissipation can be achieved, and the heat dissipation effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of motors, and more specifically, to a motor with heat dissipation function. Background Technology

[0002] The heating mechanism of an electric motor includes copper loss, iron loss, and mechanical friction loss. Copper loss is caused by Joule heat generated by the excitation of the enameled wire; iron loss is caused by hysteresis loss and eddy current loss of the iron core material in an alternating magnetic field; and mechanical friction loss is caused by frictional heat generated between the output shaft and the bearing. All of these losses lead to motor heating. Current technology uses a fan inside the motor, which rotates with the rotor during operation to dissipate heat. However, this setup still requires additional fan blades inside the motor to achieve heat dissipation, resulting in low assembly efficiency. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the low assembly efficiency of existing motors and to provide a motor with heat dissipation function, which has high assembly efficiency, is easy to use, and can effectively dissipate heat and improve the heat dissipation effect.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A motor with heat dissipation function is provided, including a housing, a rotor, a stator with coils, an output shaft, and bearings. The rotor is coaxially disposed within the stator, the stator is installed within the housing, the rotor is connected to the output shaft, the output shaft passes through the housing, and the output shaft is connected to the housing via the bearings. The rotor has a plurality of first air ducts, and the housing has a plurality of second air ducts. The first air ducts are connected to the second air ducts, and the second air ducts are connected to the outside.

[0006] This invention relates to a motor with heat dissipation function. The arrangement of a first air duct inside the rotor and a second air duct inside the housing allows the heat generated inside the motor to be discharged outside the motor through the first and second air ducts in sequence as the rotor rotates, achieving effective heat dissipation and improving the heat dissipation effect. At the same time, this invention can achieve heat dissipation through the first and second air ducts without adding fan blade parts inside the motor, resulting in high assembly efficiency.

[0007] Preferably, the housing includes a yoke housing, an upper cover, and a lower cover, with the upper and lower covers respectively covering both ends of the yoke housing. The yoke housing contains a cylindrical accommodating space and an annular accommodating space coaxially arranged with the cylindrical accommodating space. The rotor is located in the cylindrical accommodating space, and the stator is located in the annular accommodating space. The second air duct includes a first sub-air duct and a second sub-air duct located within the yoke housing. The cylindrical accommodating space is connected to the outside via the first sub-air duct, and the annular accommodating space is connected to the outside via the second sub-air duct. The arrangement of the first and second sub-air ducts allows for rapid heat dissipation of both the stator and rotor, improving heat dissipation efficiency.

[0008] Preferably, the end of the yoke shell that covers the upper cover is provided with a first recess, and the first recess is connected to the columnar accommodating space; the outer wall of the yoke shell is provided with a plurality of first ventilation notches that are connected to the first recess, and the first ventilation notches are connected to the annular accommodating space; the first recess and the first ventilation notches constitute the first sub-air duct, and the first ventilation notches constitute the second sub-air duct.

[0009] Preferably, the end of the yoke shell that covers the lower cover is provided with a second recess, the second recess being connected to the columnar accommodating space; the outer wall of the yoke shell is provided with a plurality of second ventilation openings connected to the second recess, and the second ventilation openings are connected to the annular accommodating space; the second recess and the second ventilation openings constitute the first sub-air duct, and the second ventilation openings constitute the second sub-air duct.

[0010] Preferably, the yoke housing includes an upper yoke housing and a lower yoke housing that covers the upper yoke housing. The upper cover and lower cover are detachably fitted onto the upper yoke housing and lower yoke housing, respectively. The upper yoke housing and lower yoke housing are respectively connected to both ends of the stator. The upper yoke housing is provided with a first sub-air duct and a second sub-air duct, and the lower yoke housing is provided with a first sub-air duct and a second sub-air duct. The arrangement of the upper yoke housing and lower yoke housing facilitates the assembly of the motor.

[0011] Preferably, the upper yoke housing and the lower yoke housing are respectively provided with a plurality of first pole claws and second pole claws, and the inner ring surface of the stator is provided with a first mounting groove adapted to the first pole claw and a second mounting groove adapted to the second pole claw. The first pole claw is inserted into the first mounting groove and the second pole claw is inserted into the second mounting groove.

[0012] Preferably, the upper cover and / or the lower cover are provided with a plurality of lugs for easy connection.

[0013] Preferably, the rotor is connected to a plurality of plate-like structures, which are located within the second air duct.

[0014] Preferably, the sheet-like structure is integrally formed with the rotor.

[0015] Preferably, the rotor has a plurality of hollow cavities evenly distributed inside, the hollow cavities being connected to the second air duct, and the hollow cavities constituting the first air duct.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The arrangement of the first air duct inside the rotor and the second air duct inside the housing enables the rotor to generate air pressure during operation, allowing the heat generated inside the motor to be discharged from the motor through the first and second air ducts in sequence, achieving effective convective heat dissipation and improving the heat dissipation effect. At the same time, this utility model can achieve heat dissipation through the first and second air ducts without adding fan blade parts inside the motor, resulting in high assembly efficiency.

[0018] 2. The design of the first and second sub-air ducts enables both the stator and rotor to dissipate heat quickly, improving heat dissipation efficiency;

[0019] 3. The integrated design of the sheet structure and rotor reduces the difficulty of motor assembly and effectively improves motor assembly efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a motor with heat dissipation function according to the present invention;

[0021] Figure 2 This is an exploded view of one embodiment of a motor with heat dissipation function according to the present invention;

[0022] Figure 3 This is an exploded view of another embodiment of a motor with heat dissipation function according to the present invention.

[0023] Figure 4 This is a schematic diagram of the internal structure of a motor with heat dissipation function according to the present invention;

[0024] Figure 5 This is a schematic diagram of the heat dissipation function of a motor according to the present invention. The arrows in the diagram indicate the direction of gas flow.

[0025] Figure 6 This is a schematic diagram of the rotor and upper shell assembly of this utility model.

[0026] In the attached diagram: 100, rotor; 110, plate structure; 120, hollow cavity; 200, stator; 210, coil; 220, first mounting slot; 300, output shaft; 400, bearing; 500, yoke housing; 510, upper yoke housing; 511, first recess; 512, first ventilation notch; 513, first pole claw; 520, lower yoke housing; 521, second recess; 522, second ventilation notch; 523, second pole claw; 600, upper cover; 610, lug; 700, lower cover. Detailed Implementation

[0027] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] Example 1

[0030] like Figures 1 to 6 The first embodiment of the present invention is a motor with heat dissipation function, including a housing, a rotor 100, a stator 200 with coils 210, an output shaft 300, and a bearing 400. The rotor 100 is coaxially disposed inside the stator 200, and the stator 200 is installed inside the housing. The rotor 100 is connected to the output shaft 300, which passes through the housing and is connected to the housing through the bearing 400. The rotor 100 is provided with a plurality of first air ducts, and the housing is provided with a plurality of second air ducts. The first air ducts are connected to the second air ducts, and the second air ducts are connected to the outside.

[0031] The arrangement of the first air duct inside the rotor 100 and the second air duct inside the housing allows the rotor 100 to generate air pressure during motor operation, which in turn drives the air inside the motor to be discharged outside the motor through the first and second air ducts. The heat generated inside the motor can be carried away accordingly, achieving effective heat dissipation and improving the heat dissipation effect. At the same time, this utility model can achieve heat dissipation through the first and second air ducts without adding fan blade parts inside the motor, resulting in high assembly efficiency.

[0032] like Figures 1 to 4 As shown, the housing includes a yoke housing 500, an upper cover 600, and a lower cover 700. The upper cover 600 is connected to the output shaft 300 via a bearing 400, and the lower cover 700 is also connected to the output shaft 300 via a bearing 400. The upper cover 600 and the lower cover 700 respectively cover the two ends of the yoke housing 500. The yoke housing 500 has a cylindrical receiving space and an annular receiving space coaxially arranged with the cylindrical receiving space. The rotor 100 is located in the cylindrical receiving space, and the stator 200 is located in the annular receiving space. The second air duct includes a first sub-air duct and a second sub-air duct provided in the yoke housing 500. The cylindrical receiving space is connected to the outside through the first sub-air duct, and the annular receiving space is connected to the outside through the second sub-air duct. The arrangement of the yoke housing 500, the upper cover 600, and the lower cover 700 facilitates the assembly of the motor; the arrangement of the first and second sub-air ducts enables both the stator 200 and the rotor 100 to dissipate heat quickly, improving heat dissipation efficiency.

[0033] The yoke housing 500 includes an upper yoke housing 510 and a lower yoke housing 520 that covers the upper yoke housing 510. The upper cover 600 is detachably covered by the upper yoke housing 510, and the lower cover 700 is detachably covered by the lower yoke housing 520. The upper yoke housing 510 and the lower yoke housing 520 are respectively connected to both ends of the stator 200. The upper yoke housing 510 is provided with a first sub-air duct and a second sub-air duct, and the lower yoke housing 520 is provided with a first sub-air duct and a second sub-air duct.

[0034] like Figures 1 to 6 As shown, the upper yoke shell 510 has a first recess 511 at one end that covers the upper cover 600. The first recess 511 is connected to the columnar accommodating space and to the first air duct. The outer wall of the upper yoke shell 510 has a plurality of first ventilation notches 512 that are connected to the first recess 511 and are connected to the annular accommodating space. The first recess 511 and the first ventilation notches 512 constitute a first sub-air duct provided in the upper yoke shell 510, and the first ventilation notches 512 constitute a second sub-air duct provided in the upper yoke shell 510.

[0035] Specifically, multiple first ventilation notches 512 are arranged, all located near the end of the upper cover 600. The placement of the first ventilation notches 512 near the upper cover 600 allows the heat generated by friction between the output shaft 300 and the bearing 400 to be quickly dissipated from the motor during rotor 100 rotation, further improving heat dissipation. Preferably, the multiple first ventilation notches 512 are evenly arranged, and eight first ventilation notches 512 can be provided.

[0036] like Figures 1 to 6 As shown, the lower yoke shell 520, at one end where it covers the lower cover 700, has a second recess 521. The second recess 521 communicates with the columnar accommodating space and with the first air duct. The outer wall of the lower yoke shell 520 has several second ventilation notches 522 that communicate with the second recess 521 and are also connected to the annular accommodating space. The second recess 521 and the second ventilation notches 522 constitute the first sub-air duct of the lower yoke shell 520, and the second ventilation notches 522 constitute the second sub-air duct of the lower yoke shell 520. In this embodiment, the structure of the lower yoke shell 520 is similar to or the same as that of the upper yoke shell 510, and the arrangement of the second ventilation notches 522 is also similar to or the same as that of the first ventilation notches 512.

[0037] like Figures 1 to 5 As shown, the inner yoke portion of the upper yoke housing 510 is provided with multiple first pole claws 513. The inner annular surface of the stator 200 near one end of the upper yoke housing 510 is provided with a first mounting groove 220 that matches the first pole claws 513. The first pole claws 513 are detachably inserted into the first mounting groove 220. The inner yoke portion of the lower yoke housing 520 is provided with multiple second pole claws 523. The inner annular surface of the stator 200 near one end of the lower yoke housing 520 is provided with a second mounting groove that matches the second pole claws 523. The second pole claws 523 are detachably inserted into the second mounting groove.

[0038] It should be noted that the first pole claw 513 can be integrally formed and disposed on the upper yoke housing 510, and the second pole claw 523 can also be integrally formed and disposed on the lower yoke housing 520, as shown below. Figure 2 As shown; or, a connecting piece is provided inside the upper yoke housing 510, and the first pole claw 513 is fixed to the connecting piece, realizing the separate setting of the first pole claw 513 and the upper yoke housing 510. The second pole claw 523 can also be separated from the lower yoke housing 520 through a similar or identical structure, such as... Figure 3 As shown.

[0039] like Figure 2 and Figure 3As shown, in this embodiment, the coil 210 is mounted on the outer annular surface of the stator 200. The outer annular surface of the stator 200 is provided with an annular groove for mounting the coil 210. Specifically, the annular groove is an annular groove that opens radially. Figure 1 and Figure 6 As shown, in order to facilitate the connection of coil 210 to the power supply lead, the outer side walls of the upper yoke housing 510 and the lower yoke housing 520 are provided with corresponding openings.

[0040] The working principle of a motor with heat dissipation function in this embodiment is as follows:

[0041] When the motor is operating, the rotor 100 rotates and generates air pressure, which drives the air inside the motor to enter the first cavity 511 and the second cavity 521 through the first air duct, and then exhausts to the outside through the first ventilation notch 512 and the second ventilation notch 522. The heat generated by the friction between the output shaft 300 and the bearing 400, and the heat generated at the rotor 100, can be discharged through the first cavity 511 and the first ventilation notch 512, and also through the second cavity 521 and the second ventilation notch 522. The heat generated at the stator 200 can be discharged through the first ventilation notch 512 and the second ventilation notch 522, achieving heat dissipation convection. Figure 5 As shown.

[0042] Example 2

[0043] This embodiment is a second embodiment of a motor with heat dissipation function according to this utility model. This embodiment is similar to the first embodiment, except that, as Figures 1 to 5 As shown, the upper cover 600 and / or the lower cover 700 are provided with a plurality of lugs 610, which facilitate the connection of the motor to other devices. In this embodiment, the lugs 610 are connected to the edge of the upper cover 600, and mounting holes are provided at the lugs 610. Preferably, two lugs 610 are provided.

[0044] Example 3

[0045] This embodiment is the third embodiment of a motor with heat dissipation function according to this utility model. This embodiment is similar to embodiment one or two, except that, as Figures 2 to 6 As shown, the rotor 100 is connected to several plate-like structures 110, which are located within the second air duct. The plate-like structures 110 further improve heat dissipation efficiency. In this embodiment, multiple plate-like structures 110 are provided at both ends of the rotor 100. Plate-like structures 110 are also present in the first sub-air duct of the upper yoke housing 510 and the first sub-air duct of the lower yoke housing 520. That is, plate-like structures 110 are present in both the first cavity 511 and the second cavity 521, and the plate-like structures 110 extend radially, such as... Figures 4 to 6As shown. In this embodiment, the sheet structure 110 and the rotor 100 are integrally formed. The integral forming setting can reduce the assembly difficulty of the motor and improve the assembly efficiency.

[0046] like Figures 4 to 6 As shown, the rotor 100 has multiple hollow cavities 120 evenly distributed inside, the hollow cavities 120 forming the first air duct, and the two ends of each hollow cavity 120 are connected to the first concave cavity 511 and the second concave cavity 521 respectively; the sheet-like structure 110 extends along the cavity wall of the hollow cavity 120 to both ends.

[0047] The working principle of a motor with heat dissipation function in this embodiment is as follows:

[0048] When the motor is operating, the rotor 100 rotates and generates air pressure. The heat generated between the output shaft 300 and the bearing 400 is discharged through the first cavity 511 and the first ventilation notch 512, and can also be discharged through the second cavity 521 and the second ventilation notch 522. The heat generated at the rotor 100 enters the first cavity 511 and the second cavity 521 through the hollow cavity 120, and is discharged through the first ventilation notch 512 and the second ventilation notch 522. The heat generated at the stator 200 can be discharged through the first ventilation notch 512 and the second ventilation notch 522, achieving heat dissipation convection. Figure 5 As shown.

[0049] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A motor with heat dissipation function, characterized in that, The device includes a housing, a rotor (100), a stator (200) with coils (210), an output shaft (300), and a bearing (400). The rotor (100) is coaxially disposed within the stator (200), and the stator (200) is installed within the housing. The rotor (100) is connected to the output shaft (300), which passes through the housing and is connected to the housing via the bearing (400). The rotor (100) has a plurality of first air ducts, and the housing has a plurality of second air ducts. The first air ducts are connected to the second air ducts, and the second air ducts are connected to the outside.

2. The motor with heat dissipation function according to claim 1, characterized in that, The housing includes a yoke housing (500), an upper cover (600), and a lower cover (700). The upper cover (600) and the lower cover (700) respectively cover the two ends of the yoke housing (500). The yoke housing (500) has a cylindrical receiving space and an annular receiving space coaxially arranged with the cylindrical receiving space. The rotor (100) is located in the cylindrical receiving space, and the stator (200) is located in the annular receiving space. The second air duct includes a first sub-air duct and a second sub-air duct disposed in the yoke housing (500). The cylindrical receiving space is connected to the outside through the first sub-air duct, and the annular receiving space is connected to the outside through the second sub-air duct.

3. The motor with heat dissipation function according to claim 2, characterized in that, The yoke housing (500) has a first recess (511) at one end that covers the upper cover (600), and the first recess (511) is connected to the columnar accommodating space; the outer wall of the yoke housing (500) has a plurality of first ventilation notches (512) that are connected to the first recess (511), and the first ventilation notches (512) are connected to the annular accommodating space; the first recess (511) and the first ventilation notches (512) constitute the first sub-air duct, and the first ventilation notches (512) constitute the second sub-air duct.

4. The motor with heat dissipation function according to claim 2 or 3, characterized in that, The yoke housing (500) has a second recess (521) at one end that covers the lower cover (700), and the second recess (521) is connected to the columnar accommodating space; the outer wall of the yoke housing (500) has a plurality of second ventilation notches (522) that are connected to the second recess (521), and the second ventilation notches (522) are connected to the annular accommodating space; the second recess (521) and the second ventilation notches (522) constitute the first sub-air duct, and the second ventilation notches (522) constitute the second sub-air duct.

5. The motor with heat dissipation function according to claim 4, characterized in that, The yoke housing (500) includes an upper yoke housing (510) and a lower yoke housing (520) that covers the upper yoke housing (510). The upper cover (600) and the lower cover (700) are detachably covered by the upper yoke housing (510) and the lower yoke housing (520), respectively. The upper yoke housing (510) and the lower yoke housing (520) are respectively connected to both ends of the stator (200). The upper yoke housing (510) is provided with a first sub-air duct and a second sub-air duct, and the lower yoke housing (520) is provided with a first sub-air duct and a second sub-air duct.

6. The motor with heat dissipation function according to claim 5, characterized in that, The upper yoke housing (510) and the lower yoke housing (520) are respectively provided with a plurality of first pole claws (513) and second pole claws (523). The inner ring surface of the stator (200) is provided with a first mounting groove (220) adapted to the first pole claw (513) and a second mounting groove adapted to the second pole claw (523). The first pole claw (513) is inserted into the first mounting groove (220) and the second pole claw (523) is inserted into the second mounting groove.

7. The motor with heat dissipation function according to claim 2, characterized in that, The upper cover (600) and / or the lower cover (700) are provided with a plurality of lugs (610) for easy connection.

8. The motor with heat dissipation function according to any one of claims 1 to 3, 5 to 7, characterized in that, The rotor (100) is connected to a plurality of plate-like structures (110), which are located within the second air duct.

9. The motor with heat dissipation function according to claim 8, characterized in that, The sheet structure (110) is integrally formed with the rotor (100).

10. The motor with heat dissipation function according to any one of claims 1 to 3, 5 to 7, characterized in that, The rotor (100) has a plurality of hollow cavities (120) evenly distributed inside, and the hollow cavities (120) are connected to the second air duct, and the hollow cavities (120) constitute the first air duct.

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