Heat dissipation structure of motor

Abstract

The utility model relates to a heat dissipation structure of a motor, which comprises a shell, an electric appliance cavity used for installing a motor main body is formed on the inner side of the shell, an air inlet part is arranged on the shell corresponding to the rear side of the length direction, and an air outlet part is arranged on the shell corresponding to the left side and / or the right side of the length direction. The air inlet part, the electric appliance cavity and the air outlet part are sequentially communicated to form the heat dissipation channel, the arrangement mode of the air outlet part can prevent parts such as a mesh enclosure from affecting convection of the air outlet part, the circulation efficiency of airflow in the heat dissipation channel is improved, and therefore the heat dissipation effect in the electric appliance cavity is better.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment motors, in particular to a heat dissipation structure of a motor. Background Art

[0002] The motor is the main component of the fan. For example, the motor used in the fan head will generate heat during operation, which can easily affect the service life of the motor.

[0003] To dissipate heat, existing fan heads generally have air inlets and outlets at both ends of the fan head. For example, patent document CN205225800U discloses a fan head for an electric fan. The specific content includes "a fan head for an electric fan, including front and rear mesh covers, fan blades, a main motor, a motor bracket, a motor rear cover, an shaking device and a main control device, the fan blades are mounted on the rotating shaft of the main motor, the main motor is arranged in the motor rear cover, and the motor bracket is connected to the motor rear cover. It is characterized in that the motor rear cover is provided with a mounting position for installing the main control device, and a remote control receiving device is provided on the front and rear mesh covers, and the remote control receiving device is electrically connected or wirelessly connected to the main control device." Combined with the accompanying drawings, it can be seen that air holes are opened on the motor bracket (equivalent to the air outlet being provided at the front end of the shell).

[0004] However, the air holes are arranged at the front end of the fan head, and the front end of the fan head often needs to be installed with components such as a mesh cover, resulting in a relatively poor convection effect of the air holes at the front end of the fan head, which is not conducive to the heat dissipation effect of the air holes.

[0005] Therefore, further improvement is needed. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a heat dissipation structure for a motor body, which accelerates the heat release effect of the motor body by improving the air inlet and outlet design of the shell, thereby achieving better heat dissipation effect of the motor body.

[0007] The purpose of this utility model is achieved in this way:

[0008] A heat dissipation structure for a motor includes a housing, an electrical cavity formed on the inner side of the housing for mounting a motor body, an air inlet provided on the housing at a rear position corresponding to its lengthwise direction, and an air outlet provided on the housing at a left and / or right position corresponding to its lengthwise direction. The air inlet, the electrical cavity, and the air outlet are sequentially connected to form a heat dissipation channel.

[0009] As a specific solution, the air outlet portion includes a first air outlet hole group, which includes a plurality of first air holes distributed along the length direction of the shell, and the first air holes are arranged obliquely from the back to the front toward the outside.

[0010] As a specific solution, the first air hole is in a V-shape, and the upper and lower sides of the first air hole are respectively extended forward from the middle position of the first air hole.

[0011] As a specific solution, the lengths of the first air holes increase sequentially from back to front.

[0012] As a specific solution, a protrusion is provided on the shell at a position corresponding to the first air outlet group. The protrusion protrudes outward toward the side facing away from the electrical cavity, and the side facing the electrical cavity is concave and hollow. The first air holes are distributed on the protrusion along the length direction of the shell.

[0013] As a specific solution, the protrusion is in the shape of a plate, the main body of the shell is provided with a mounting hole corresponding to the protrusion, and the protrusion and the mounting hole are mounted and fixed by a snap-fit ​​structure.

[0014] As a specific solution, the air outlet portion also includes a second air outlet group, which is circumferentially adjacent to the first air outlet group. The second air outlet group includes several second air holes distributed along the length direction of the shell, and the second air holes are inclined from back to front toward the outside.

[0015] As a specific solution, a control component is provided in the electrical cavity, a downwardly extending heat sink is connected to the lower side of the control component, and a projection of the air inlet toward the electrical cavity at least partially overlaps with the heat sink.

[0016] The beneficial effects of the utility model are:

[0017] The arrangement of the air outlet portion can prevent the mesh cover and other components from affecting the convection of the air outlet portion, thereby accelerating the heat release effect of the motor body, thereby achieving better heat dissipation effect of the motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of the embodiment of the utility model is shown in FIG. Figure 1 .

[0019] Figure 2 The structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0020] Figure 3 It is an exploded schematic diagram of an embodiment of the present utility model.

[0021] Figure 4 It is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0022] Figure 5 It is an enlarged view of A in embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See also Figures 1-5 The heat dissipation structure of the motor includes a shell 1. An electrical cavity 11 for mounting a motor body 2 is formed on the inner side of the shell 1. An air inlet 12 is provided on the shell 1 at a rear position corresponding to its length direction. An air outlet is provided on the shell 1 at a left and / or right position corresponding to the length direction. The air inlet 12, the electrical cavity 11 and the air outlet are connected in sequence to form a heat dissipation channel. In this embodiment, air outlets are provided on the left and right positions corresponding to the length direction of the shell 1.

[0025] The arrangement of the air outlet portion can prevent the mesh cover and other components from affecting the convection of the air outlet portion, thereby accelerating the heat release effect of the motor body, thereby achieving better heat dissipation effect of the motor body.

[0026] Furthermore, the air outlet portion includes a first air outlet hole group, which includes a plurality of first air holes 131 distributed along the length direction of the outer shell 1. The first air holes 131 are inclined from back to front toward the outside. When the airflow enters the electrical cavity 11, it has a tendency to move forward. The opening direction of the first air holes 131 can better utilize the movement trend of the airflow, thereby further improving the efficiency of the airflow circulation.

[0027] Furthermore, the first air hole 131 is in a V-shape, which can relatively increase the total length of the first air hole 131 and make it easier for air to be discharged from the first air hole 131 .

[0028] The upper and lower sides of the first air hole 131 are respectively extended forward from the middle position of the first air hole 131 , so that the airflow has a tendency to diffuse outward after being discharged, thereby reducing the chance of airflow interfering with each other.

[0029] Furthermore, the length of the first air holes 131 increases from the back to the front, which can further enhance the tendency of the airflow to diffuse outward after being discharged outward.

[0030] Furthermore, a protrusion 14 is provided on the outer shell 1 at a position corresponding to the first air outlet group. The protrusion 14 protrudes outward toward the side facing away from the electrical cavity 11, and the side of the protrusion 14 facing the electrical cavity 11 is concave and hollow. The first air holes 131 are distributed on the protrusion 14 along the length direction of the outer shell 1. When the air flow passes through the position corresponding to the inner side of the protrusion 14 from the electrical cavity 11, more air flow can form a trend of moving toward the first air outlet group.

[0031] Furthermore, the protrusion 14 is in the shape of a plate, and the main body of the shell 1 is provided with a mounting hole 15 corresponding to the protrusion 14. The protrusion 14 and the mounting hole 15 are fixed by a snap-fit ​​structure, so that the protrusion 14 and the main body of the shell 1 can be processed separately, which simplifies the processing mold and reduces the processing cost.

[0032] Furthermore, the air outlet portion also includes a second air outlet hole group, which is arranged adjacent to the first air outlet hole group along the circumferential direction, so that the air flow can be discharged outward at different positions along the circumference of the shell 1, further improving the overall air outlet effect of the air outlet portion.

[0033] The second air outlet group includes a plurality of second air holes 132 distributed along the length direction of the shell 1. The second air holes 132 are tilted from back to front toward the outside. The opening direction of the second air holes 132 can better utilize the movement trend of the air flow, thereby further improving the efficiency of the air flow.

[0034] Furthermore, a control component 3 is provided in the electrical cavity 11, and a downward extending heat sink 31 is connected to the lower side of the control component 3. The projection of the air inlet 12 toward the electrical cavity 11 at least partially overlaps with the heat sink 31, which can further enhance the heat dissipation effect of the control component 3.

[0035] The above embodiments are only preferred embodiments of the present invention, and other embodiments are possible. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope set by the claims of this application.

Claims

1. A heat dissipation structure for a motor, comprising a housing (1), wherein an electrical cavity (11) for mounting a motor body (2) is formed on the inner side of the housing (1), and characterized in that: An air inlet (12) is provided on the housing (1) at a rear position corresponding to the longitudinal direction thereof, and an air outlet is provided on the housing (1) at a left and / or right position corresponding to the longitudinal direction thereof, wherein the air inlet (12), the electrical cavity (11) and the air outlet are sequentially connected to form a heat dissipation channel.

2. The heat dissipation structure of the motor according to claim 1, characterized in that: The air outlet portion comprises a first air outlet hole group, the first air outlet hole group comprises a plurality of first air holes (131) distributed along the length direction of the housing (1), and the first air holes (131) are arranged obliquely from the back to the front toward the outside direction.

3. The heat dissipation structure of the motor according to claim 2, characterized in that: The first air hole (131) is in a V-shape, and the upper and lower sides of the first air hole (131) are respectively extended forward from the middle position of the first air hole (131).

4. The heat dissipation structure of the motor according to claim 2, characterized in that: The lengths of the first air holes (131) increase sequentially from the back to the front.

5. The heat dissipation structure of the motor according to claim 2, characterized in that: A protrusion (14) is provided on the housing (1) at a position corresponding to the first air outlet group. The protrusion (14) protrudes outwards toward the side facing away from the electrical cavity (11). The side of the protrusion (14) facing the electrical cavity (11) is in a concave hollow shape. The first air holes (131) are distributed on the protrusion (14) along the length direction of the housing (1).

6. The heat dissipation structure of the motor according to claim 5, characterized in that: The protrusion (14) is in the shape of a plate, and the main body of the housing (1) is provided with a mounting hole (15) corresponding to the protrusion (14), and the protrusion (14) and the mounting hole (15) are mounted and fixed via a snap-fit ​​structure.

7. The heat dissipation structure of the motor according to claim 2, characterized in that: The air outlet portion further comprises a second air outlet hole group, the second air outlet hole group being arranged adjacent to the first air outlet hole group along the circumferential direction, the second air outlet hole group comprising a plurality of second air holes (132) distributed along the length direction of the housing (1), the second air holes (132) being arranged tilted from the back to the front toward the outside.

8. The heat dissipation structure of the motor according to any one of claims 1 to 7, characterized in that: A control assembly (3) is provided in the electrical cavity (11), a downwardly extending heat sink (31) is connected to the lower side of the control assembly (3), and a projection of the air inlet portion (12) toward the electrical cavity (11) at least partially overlaps with the heat sink (31).

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