Motor heat dissipation structure

Abstract

The utility model provides a heat dissipation structure of a motor, and aims to solve the technical problem that the heat dissipation mode of the existing motor is poor in effect. A front end cover and a rear end cover are connected to the front side and the rear side of a shell correspondingly. The outer wall of the shell is provided with a first diversion trench group along the circumferential direction of the shell, and the outer wall of the rear end cover is provided with a second diversion trench group matched with the first diversion trench group. The rotating assembly penetrates through the shell, and the rear end of the rotating assembly is exposed out of the rear end cover and provided with a fan. The heat dissipation assembly comprises an air expansion cover and a connecting frame. And the wind expanding cover sleeves the outer side of the rear end cover, the diameter of a cover body at the rear end of the wind expanding cover is gradually increased, a third diversion trench group is formed in the wind expanding cover, and the front end of the wind expanding cover is connected with the front end cover through the connecting frame to be mounted on the motor main body. According to the application, the air expansion cover provided with the third diversion trench group is mounted on the motor main body through the connecting frame, and the flaring structure of the air expansion cover is combined, so that the air inlet amount in the air expansion cover is increased, and the heat dissipation of the motor main body is accelerated.

Description

Technical Field

[0001] This application relates to the field of motor heat dissipation, and more particularly to a motor heat dissipation structure. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy, mainly composed of a stator, rotor, housing, and end covers. Current methods for cooling electric motors include using a fan mounted at the rear of the shaft to blow airflow. However, because the airflow from the fan has a limited range and is not directed promptly after being generated, most of the air is lost and not fully utilized by the motor, thus reducing cooling efficiency. Another method involves incorporating multiple ventilation slots and vents within the motor itself for cooling. While this provides some cooling, over long-term use, a large amount of dust and other debris can enter the motor body through these slots and vents, not only affecting cooling but also increasing the risk of motor malfunctions. Utility Model Content

[0003] To address the aforementioned problems, this application provides a motor heat dissipation structure, comprising:

[0004] The motor body includes a housing and rotating components;

[0005] The outer shell has a front cover and a rear cover connected to its front and rear sides respectively; the outer wall of the outer shell is provided with a first guide groove group along the circumference of the outer shell, and the outer wall of the rear cover is provided with a second guide groove group matching the first guide groove group.

[0006] The rotating assembly is installed through the housing, and the rear end of the rotating assembly protrudes outside the rear end cover and is fitted with a fan.

[0007] The heat dissipation assembly includes an air diffuser and a connecting frame; the air diffuser is fitted onto the outside of the rear end cover; the diameter of the rear end cover of the air diffuser gradually increases, and a third set of air guide grooves is provided inside; the front end of the air diffuser is installed on the motor body through the connection of the connecting frame to the front end cover.

[0008] Furthermore, when the air diffuser is installed on the motor body, each third guide groove is matched and aligned with the corresponding second guide groove.

[0009] Furthermore, the ventilation hood includes a fixed hood and a mounting hood;

[0010] The fixing cover is fitted onto the outside of the rear end cover; the front side of the fixing cover is mounted to the front end cover via the connecting bracket.

[0011] The mounting cover is movably mounted on the rear end of the fixed cover; a third guide groove is provided inside the mounting cover along its circumference.

[0012] Furthermore, the connecting frame is provided in multiple parts; each connecting frame includes an extension plate portion and a fixing plate portion;

[0013] The rear sidewall of the extension plate is connected to the front sidewall of the fixing cover.

[0014] The fixed plate portion has its rear end fixed to the front end of the extension plate portion, and its front end installed on the front end cover.

[0015] Furthermore, the fixing cover is equipped with a plurality of the mounting covers.

[0016] Furthermore, each mounting cover is assembled from multiple mounting pieces to form a cover structure with open ends; each mounting piece is connected to the rear end of the fixed cover; each mounting piece is provided with a third guide groove group; when the mounting pieces are assembled into a mounting cover, the third guide groove is located on the inner wall of the mounting cover.

[0017] Furthermore, the side wall of the fixed cover is provided with a slot; the outer wall of the extension plate near its rear end is provided with an elastic protrusion that matches the slot.

[0018] Furthermore, a spring is installed between each connecting frame and the housing.

[0019] Furthermore, the rotating assembly includes a shaft, a rotor, and a stator;

[0020] The rotating shaft passes through the front cover, the outer shell, and the rear cover in sequence, with its two ends protruding from the front cover and the rear cover, respectively; a fan is installed at the end of the rotating shaft that protrudes from the rear cover.

[0021] The rotor is sleeved on the outer wall of the shaft;

[0022] The stator is fitted into the housing to match the rotor.

[0023] Furthermore, a set of bases is provided at the bottom end of the outer casing.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] Based on the above embodiments, the advantages of this application are:

[0026] (1) The air hood with the third guide slot group is installed on the motor body through the connecting frame, and combined with the flared structure of the air hood, the air intake in the air hood is increased and the heat dissipation of the motor body is accelerated.

[0027] (2) The fixed cover is equipped with multiple mounting covers, and each mounting cover can be disassembled into multiple mounting pieces. This structure design facilitates the replacement and cleaning of the mounting covers and avoids dust accumulation in the third guide channel group, which affects the air intake of the expansion cover. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of a motor heat dissipation structure according to an embodiment of this application;

[0030] Figure 2 This is a cross-sectional view (excluding the base) along the B-B' direction of a motor heat dissipation structure according to an embodiment of this application.

[0031] Figure 3 This is a cross-sectional view (excluding the base) along the A-A' direction of an embodiment of the heat dissipation structure for an electric motor according to this application.

[0032] Figure 4 This is a schematic diagram of the rear end cover structure of a motor heat dissipation structure according to an embodiment of this application;

[0033] Figure 5 This is a schematic diagram of the structure of a fan cover for a motor heat dissipation structure according to an embodiment of this application;

[0034] Figure label:

[0035] 10. Outer shell; 100. First airflow channel group; 11. Front cover; 12. Rear cover; 120. Second airflow channel group; 13. Base;

[0036] 20. Shaft; 21. Fan; 22. Rotor; 23. Stator;

[0037] 30. Expansion hood; 300. Fixing hood; 301. Mounting hood; 302. Third guide channel group; 310. Extension plate; 311. Fixing plate; 312. Elastic protrusion; 32. Spring. Detailed Implementation

[0038] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0039] In the description of this utility model, it should be understood that the terms "front," "rear," "bottom," "inner," "outer," "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to 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, they should not be construed as limitations on this utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] The following disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the present invention. Furthermore, reference numerals may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments discussed. In addition, examples of various specific materials are provided in the present invention, but those skilled in the art will recognize the use of other materials.

[0043] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0044] This utility model embodiment provides a motor heat dissipation structure; please refer to... Figures 1-4 The motor heat dissipation structure includes a motor body and a heat dissipation unit. The heat dissipation unit is sleeved on the outside of the motor body, allowing heat to be dissipated from the outer wall of the motor body.

[0045] Specifically,

[0046] The motor body includes a housing and a rotating assembly. The housing has a housing body 10, a front cover 11, and a rear cover 12, with the front cover 11 and the rear cover 12 respectively connected to both sides of the housing body 10. A first guide groove group 100 is formed on the outer wall of the housing body along the circumference of the housing body, and a second guide groove group 120 matching the first guide groove group 100 is formed on the outer wall of the rear cover along the circumference of the rear cover. That is, when the rear cover 12 is connected to the housing body 10, the first guide groove is positioned opposite the second guide groove. Preferably, the shape and size of each first guide groove are the same as the shape and size of its corresponding second guide groove. A set of bases 13 is provided at the bottom of the housing body for supporting the motor body and facilitating heat dissipation at the bottom of the motor body. The rotating assembly includes a rotating shaft 20, a rotor 22, and a stator 23. The rotating shaft 20 passes through the front cover 11, the housing body 10, and the rear cover 12 in sequence, with its two ends exposed at the front cover 11 and the rear cover 12 respectively, and a fan 21 is installed on the rear cover 12. The rotor 22 is fitted onto the outer wall of the shaft 20. The stator 23 is installed inside the housing body 10, corresponding to the rotor 22.

[0047] The heat dissipation assembly includes a fan shroud 30 and a connecting bracket. One side of the fan shroud is mounted to the motor body via the connecting bracket connected to the front cover 11. When the fan 21 of the motor body is running, a large amount of air can be guided through the second guide channel of the rear cover 12 and through the first guide channel of the outer casing 10 to reach the front cover 11, so that the outer surface of the motor body can be effectively cooled.

[0048] The air diffuser 30 includes a fixed cover 300 and a mounting cover 301. The fixed cover 300 is a hollow cylindrical structure with open front and rear ends. A slot is provided on the outer wall of the fixed cover. The fixed cover 300 is fitted onto the outside of the rear end cover. The mounting cover 301 is a cover structure with open ends and a diameter that gradually increases. A third set of guide channels 302 is provided circumferentially inside the mounting cover 301. Preferably, when the air diffuser 30 is mounted to the motor body via a connecting bracket, each third guide channel inside the mounting cover 301 is aligned with a corresponding second guide channel. When the motor is started, the structural design of the air diffuser 30 helps increase the airflow to the outer wall of the motor body, accelerating heat dissipation from the motor body.

[0049] Multiple connecting frames are provided, each including an extension plate portion 310 and a fixing plate portion 311. The rear end sidewall of the extension plate portion is bolted to the front end sidewall of the fixing cover. To reduce the probability of connecting frame deformation, an elastic protrusion 312 matching a slot is provided on the outer wall of the extension plate portion 310 near its rear end, allowing the elastic protrusion 312 to engage within the slot. The fixing plate portion 311 is welded to the front end of the extension plate portion 310. The fixing plate portion 311 is bolted to the front end of the front end cover. A spring 32 is installed between each connecting frame and the outer casing 10, which helps reduce the vibration of the heat dissipation components when the motor vibrates during operation, thereby reducing the probability of the connecting frame being deformed and damaged due to long-term motor vibration.

[0050] Example 2

[0051] For easier replacement and cleaning of cover 301, please refer to... Figure 1 and Figure 5 The fixed cover 300 of this application is equipped with multiple mounting covers. Each mounting cover 301 is assembled from multiple mounting pieces into a cover structure with open ends. Preferably, adjacent mounting pieces can be assembled by plugging in. Each mounting piece is connected to the rear end of the fixed cover. Each mounting piece has a third guide channel group 302; when the mounting pieces are assembled into the mounting cover 301, the third guide channel is located on the inner wall of the mounting cover. When the air intake of the diffuser 30 is affected by dust accumulation in the third guide channel group 302, the mounting pieces can be removed one by one and replaced to facilitate cleaning of the mounting cover 301.

[0052] Based on the above embodiments, the working principle of this application is as follows:

[0053] After installing the mounting cover 301 onto the fixed cover 300, the fixed cover 300 is then installed onto the front cover 11 via the connecting bracket, thus completing the installation of the air diffuser 30 at the motor body. When the motor body is started, under the combined action of the air diffuser 30 and the fan 21, a large amount of air flows sequentially along the third guide channel of the mounting cover 301 towards the fixed cover 300, and then flows along the second guide channel group 120 of the rear cover 12 towards the outer casing 10, and then along the first guide channel group 100 to the front cover 11 and the end of the rotating shaft exposed on the front cover 11. In summary, this ensures effective heat dissipation on the outer surface of the motor body.

[0054] Based on the above embodiments, the advantages of this application are:

[0055] (1) The air hood 30 with the third guide slot group 302 is installed on the motor body through the connecting frame, and combined with the flared structure of the air hood 30, the air intake in the air hood 30 is increased, and the heat dissipation of the motor body is accelerated.

[0056] (2) The fixed cover 300 is equipped with multiple mounting covers 301, and each mounting cover 301 is detachable into multiple mounting pieces. This design facilitates the replacement and cleaning of the mounting covers 301 and prevents the third guide channel group 302 from accumulating dust and affecting the air intake of the expansion cover 30.

Claims

1. A motor heat dissipation structure, characterized in that, It includes: The motor body includes a housing and rotating components; The outer shell has a front cover and a rear cover connected to its front and rear sides respectively; the outer wall of the outer shell is provided with a first guide groove group along the circumference of the outer shell, and the outer wall of the rear cover is provided with a second guide groove group matching the first guide groove group. The rotating assembly is installed through the housing; the rear end of the rotating assembly protrudes outside the rear end cover and is fitted with a fan. The heat dissipation assembly includes an air diffuser and a connecting frame; the air diffuser is fitted onto the outside of the rear end cover; the diameter of the rear end cover of the air diffuser gradually increases, and a third set of air guide grooves is provided inside; the front end of the air diffuser is installed on the motor body through the connection of the connecting frame to the front end cover.

2. The motor heat dissipation structure according to claim 1, characterized in that: When the air diffuser is installed on the motor body, each third guide groove is matched and aligned with the corresponding second guide groove.

3. The motor heat dissipation structure according to claim 1, characterized in that: The ventilation hood includes a fixed hood and a mounting hood; The fixing cover is fitted onto the outside of the rear end cover; the front side of the fixing cover is mounted to the front end cover via the connecting bracket. The mounting cover is movably mounted on the rear end of the fixed cover; a third guide groove is provided inside the mounting cover along its circumference.

4. The motor heat dissipation structure according to claim 3, characterized in that: The connecting frame is provided in multiple parts; each connecting frame includes an extension plate and a fixing plate. The rear sidewall of the extension plate is connected to the front sidewall of the fixing cover. The fixed plate portion has its rear end fixed to the front end of the extension plate portion, and its front end installed on the front end cover.

5. The motor heat dissipation structure according to claim 4, characterized in that: The fixing cover is equipped with multiple mounting covers.

6. The motor heat dissipation structure according to claim 5, characterized in that: Each mounting cover is assembled from multiple mounting pieces to form a cover structure with open ends; each mounting piece is connected to the rear end of the fixed cover; each mounting piece has a third guide groove group; when the mounting pieces are assembled into a mounting cover, the third guide groove is located on the inner wall of the mounting cover.

7. The motor heat dissipation structure according to claim 4, characterized in that: The side wall of the fixed cover is provided with a slot; the outer wall of the extension plate near its rear end is provided with an elastic protrusion that matches the slot.

8. The motor heat dissipation structure according to claim 4, characterized in that: A spring is installed between each connecting bracket and the housing.

9. The motor heat dissipation structure according to claim 1, characterized in that: The rotating assembly includes a rotating shaft, a rotor, and a stator; The rotating shaft passes through the front cover, the outer shell, and the rear cover in sequence, with its two ends protruding from the front cover and the rear cover, respectively; a fan is installed at the end of the rotating shaft that protrudes from the rear cover. The rotor is sleeved on the outer wall of the shaft; The stator is fitted into the housing to match the rotor.

10. The motor heat dissipation structure according to claim 9, characterized in that: A set of bases is provided at the bottom of the outer shell.

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