Double-cooling type fan motor heat dissipation structure

Abstract

A double-cooling type fan motor heat dissipation structure comprises a motor with a fan at the shaft end, the fan comprises an impeller installed at the shaft end of the motor, the outer portion of the impeller is wrapped by a volute, the position, corresponding to an impeller core, of the side wall of an inner ring of the volute is communicated with a corresponding fan air inlet, and an outlet of an outer ring of the volute is communicated with a fan air outlet. And an air cooling device and a water cooling device which are not connected are arranged on the motor. According to the utility model, air-taking air cooling replaces impeller air cooling, and air cooling and water cooling are combined, so that the heat dissipation performance of the fan motor is improved, and the service life of the bearing is longer.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor heat dissipation, and in particular relates to a double-cooling heat dissipation structure of a fan motor. Background Art

[0002] The traditional method of cooling fan motors is to dissipate heat through natural air suction through the wind wheel. Experience from many production, processing and use shows that although this process has a simple structure and is easy to install, the heat dissipation of the motor is limited by the wind wheel and the air inlet channel. The wind pressure generated by the wind wheel is relatively small. When the motor has a small channel structure, the heat dissipation of the motor will be poor. If you want to improve the heat dissipation performance of the motor, you need to increase the volume of the impeller and volute. When the volume of the impeller and volute is increased, not only the production cost is increased, but also the space requirement for the actual installation of the motor is increased simultaneously. Utility Model Content

[0003] The utility model aims to provide a double-cooling fan motor heat dissipation device which combines water cooling and air cooling without increasing the installation space, so as to solve the technical problems that the wind heat dissipation effect of the existing fan motor is poor and the installation space requirement increases synchronously after the impeller and the volute are enlarged.

[0004] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0005] A dual-cooling fan motor heat dissipation structure includes a motor with a fan at the shaft end, the fan includes an impeller installed at the motor shaft end, the outside of the impeller is wrapped by a volute, the side wall of the inner ring of the volute corresponding to the impeller core is connected to a corresponding fan air inlet, and the outlet of the outer ring of the volute is connected to the fan outlet. It is characterized in that a non-interconnected air cooling device and a water cooling device are provided on the motor.

[0006] Furthermore, the air cooling device includes an air intake pipe and an air outlet pipe, the inlet end of the air intake pipe is connected to the side wall of the fan outlet, the outlet end of the air intake pipe and the inlet end of the air outlet pipe are both connected to the side wall of the motor, and the two are respectively arranged at the far ends of the corresponding side walls on both sides of the motor.

[0007] Furthermore, an air inlet penetrating the motor housing is provided on the side wall near the bottom of the motor, the outlet end of the air intake pipe is connected to the air inlet, the air intake pipe is connected to the inside of the motor through the air inlet, and the inlet end of the air outlet pipe is connected to the side wall of the motor near the shaft end.

[0008] Furthermore, the outlet end of the air outlet pipe is connected to the side wall of the volute inner ring corresponding to the impeller core.

[0009] Furthermore, the water cooling device includes a water channel arranged in the side wall of the motor housing, the water channel is between the inner side and the outer side of the motor side wall, and a water inlet and a water outlet are respectively arranged at both ends of the water channel. The water inlet and the water outlet are both arranged on the outer side wall of the motor, respectively at the two ends corresponding to the axial direction of the motor.

[0010] Furthermore, the water channel is a multi-circle channel correspondingly connected, the multi-circle channel of the water channel is evenly distributed along the axial direction, and the water inlet and the water outlet are respectively arranged on the outer side walls at the two ends corresponding to the axial direction of the motor.

[0011] Furthermore, the water channel and the air inlet of the motor are arranged alternately, and the two are not connected to each other.

[0012] Furthermore, the connections between the air intake pipe and the air outlet pipe and the side wall of the motor are respectively located on two sides corresponding to the axial center of the motor, and the air inlet of the motor and the water inlet of the water cooling device form an angle of 90° in the circumferential direction of the motor.

[0013] The utility model discloses a double-cooling fan motor heat dissipation structure which replaces impeller air cooling with air cooling and adds a water cooling device, thereby combining air cooling and water cooling, improving the heat dissipation performance of the fan motor, making the ambient temperature of the rotor more stable when working, reducing the high-temperature collision rate of the impeller, extending the service life of the bearing, and improving the safety performance of the fan motor when working. In addition, the design structure is simple, which is conducive to saving manufacturing costs and is more suitable for large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the heat dissipation structure of the double-cooling fan motor of the utility model;

[0015] Figure 2 This is a double cooling fan motor heat dissipation structure of the utility model Figure 1 Rear view of

[0016] Figure 3 This is a double cooling fan motor heat dissipation structure of the utility model Figure 1 Cross-sectional structural diagram in AA direction;

[0017] Explanation of markings in the figure: 1. Motor; 11. Mounting base; 12. Lifting ring; 13. Air inlet; 2. Fan; 21. Air inlet; 22. Air outlet; 23. Volute; 3. Air intake pipe; 31. Air outlet pipe; 4. Water inlet; 41. Water outlet; 42. Waterway. DETAILED DESCRIPTION

[0018] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of the heat dissipation structure of the double-cooling fan 2 motor of the utility model in conjunction with the accompanying drawings.

[0019] like Figure 1-3 As shown, the utility model double-cooling fan 2 motor heat dissipation structure includes a motor 1 and a fan 2, the fan 2 is arranged at the shaft end of the motor 1, and the two are detachably fixedly installed. A fixedly connected mounting seat 11 is provided at the bottom of the motor 1, and the motor 1 is fixedly installed to the outside through the mounting seat 11. A corresponding lifting ring 12 is provided above the motor 1 to facilitate the lifting and transportation of the motor 1. Corresponding air cooling devices and water cooling devices are provided on the motor 1. There is no intersection between the air cooling device and the water cooling device, and they are separately arranged without affecting each other.

[0020] The fan 2 includes an air inlet 21, an air outlet 22, an impeller and a volute 23, wherein the impeller is mounted on the shaft end of the motor 1, and the volute 23 is wrapped around the outside of the impeller as an air delivery duct of the fan 2. The air inlet 21 and the air outlet 22 of the fan 2 are respectively arranged at the corresponding two ends of the volute 23 and are connected thereto. In this embodiment, the air inlet 21 is arranged on the other side of the impeller corresponding to the motor 1, and is connected to the wheel core of the impeller. The end of the air inlet 21 corresponding to the impeller is connected to the side wall of the inner ring of the turbine, and the air outlet 22 is connected to the outer ring outlet of the volute 23. The impeller of the fan 2 rotates under the drive of the motor 1, and air enters the fan 2 from the air inlet 21 of the fan 2, and wind force is formed under the rotation of the impeller. The wind force is exported from the fan 2 through the air outlet 22 via the volute 23 and then used.

[0021] The air cooling device includes an air intake pipe 3 and an air outlet pipe 31, the inlet end of the air intake pipe 3 is connected to the side wall at the air outlet 22 of the fan 2, and the two are fixedly connected, the inlet end of the air intake pipe 3 is connected to the air outlet 22 of the fan 2, and the outlet end of the air intake pipe 3 and the inlet end of the air outlet pipe 31 are both connected to the side wall of the motor 1, and the two are respectively arranged at the distal ends of the corresponding side walls on both sides of the motor 1, and a corresponding air inlet 13 is arranged on the side wall of the motor 1, and the other side of the motor 1 corresponding to its shaft end is the bottom of the motor 1. In this embodiment, the air inlet 13 is arranged on the side wall near the bottom of the motor 1, and the air inlet 13 passes through the outer shell of the motor 1, so that the outlet end of the air intake pipe 3 is connected to the inside of the motor 1, and the air outlet pipe 31 is arranged on the side wall corresponding to the shaft end of the motor 1, and its inlet end is connected to the side wall of the motor 1 near the shaft end. In this embodiment, the outlet end of the air outlet pipe 31 is connected to the side wall corresponding to the inner ring of the volute 23 and the impeller core.

[0022] When the fan 2 is working, the air intake pipe 3 takes pressurized air from the air outlet 22 of the fan 2. The air forms wind force and has a relatively low temperature. The air intake pipe 3 injects the air into the motor 1 through the air inlet 21 on the motor 1. The air passes through the internal components of the motor 1, such as the rotor, bearings, etc., and then enters the impeller core through the air outlet pipe 31. Then, after being compressed by the impeller again, it is discharged from the air outlet 22, thereby achieving heat dissipation and cooling of the motor 1 through the air cooling device.

[0023] The water cooling device includes a water inlet 4, a water outlet 41 and a water channel 42, wherein the water channel 42 is arranged in the side wall of the motor 1 housing, between the inner side and the outer side of the side wall of the motor 1, and is composed of multiple interconnected passages, and the passages are arranged and interconnected in a progressive or reciprocating manner. In this embodiment, the passages are arranged in a multi-circle surrounding type, and the ends of the passages are staggered and interconnected to form reciprocating interconnected passages. The multi-circle passages are evenly distributed along the axial direction, and the water channel 42 and the air inlet 13 of the motor 1 are staggered and not interconnected. The two ends of the water channel 42 are respectively provided with a water inlet 4 and a water outlet 41, which are both arranged on the outer side wall of the motor 1, and are respectively arranged at the two ends corresponding to the axial direction of the motor 1. In this embodiment, the water inlet 4 is arranged on the side wall close to the shaft end of the motor 1, and the water outlet 41 is arranged on the side wall close to the bottom of the motor 1.

[0024] When the water cooling device is in use, an external water source is connected through its water inlet 4, so that the external cold water source enters the shell of the motor 1 through the water inlet 4, and the cold water flows along the water channel 42 in the shell of the motor 1 toward the water outlet 41. The cold water absorbs the heat of the motor 1 during the flow in the shell, and the water molecules that have absorbed the heat flow out through the water outlet 41. As the water molecules continue to flow, the heat of the motor 1 shell is continuously taken away, thereby achieving water-cooled heat dissipation and temperature reduction of the motor 1.

[0025] In order to allow the air cooling device and the water cooling device to take away the heat of the motor 1 to the maximum extent, from the bottom surface of the motor 1, the connection points of the air intake pipe 3 and the air outlet pipe 31 with the side wall of the motor 1 are respectively located on the two sides corresponding to the axial center of the motor 1, so that the wind in the air cooling device can contact the internal components of the motor 1 more comprehensively, thereby taking away more heat from the inside of the motor 1. The water inlet 4 and the water outlet 41 of the water cooling device are on the same side wall of the motor 1, so that not only can the water cooling device cover more of the side wall of the motor 1, thereby taking away more heat, but also the air inlet 13 of the motor 1 and the water inlet 4 of the water cooling device are at an angle of 90 degrees in the circumferential direction of the motor 1, so that the two cooperate with each other to cover a larger area of ​​the motor 1, and the cooling area of ​​the motor 1 by the two is larger, thereby having a better cooling effect.

[0026] The double-cooled fan motor heat dissipation structure of the utility model sets the inlet end of the air intake pipe 3 to the air outlet 22 of the fan 2, so that the air intake of the air cooling device is replaced by the air cooling at the air outlet 22 of the fan 2 instead of the impeller air cooling, and at the same time, a water cooling device is added to combine air cooling and water cooling, so that the heat dissipation performance of the fan 2 motor 1 is excellent, and the ambient temperature of the motor 1 when the motor 1 is working can be better guaranteed, and the probability of the impeller colliding due to high temperature is reduced to a greater extent, and at the same time, the service life of the bearing and the safety performance of the fan 2 motor 1 when working are improved.

[0027] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A dual-cooling fan motor heat dissipation structure, comprising a motor (1) with a fan (2) at the shaft end, the fan (2) comprising an impeller mounted at the shaft end of the motor (1), the outer portion of the impeller being wrapped by a volute (23), the inner ring side wall of the volute (23) corresponding to the impeller core being connected to a corresponding fan (2) air inlet (21), the outer ring outlet of the volute (23) being connected to a fan (2) air outlet (22), characterized in that: The motor (1) is provided with an air cooling device and a water cooling device which are not connected to each other.

2. The dual-cooling fan motor heat dissipation structure according to claim 1 is characterized in that: The air cooling device comprises an air intake pipe (3) and an air outlet pipe (31), the inlet end of the air intake pipe (3) is connected to the side wall of the air outlet (22) of the fan (2), the outlet end of the air intake pipe (3) and the inlet end of the air outlet pipe (31) are both connected to the side wall of the motor (1), and the two are respectively arranged at the far ends of the corresponding side walls on both sides of the motor (1).

3. The dual-cooling fan motor heat dissipation structure according to claim 2 is characterized in that: An air inlet (13) penetrating the housing of the motor (1) is provided on the side wall of the motor (1) near the bottom, the outlet end of the air intake pipe (3) is connected to the air inlet (13), the air intake pipe (3) is connected to the inside of the motor (1) through the air inlet (13), and the inlet end of the air outlet pipe (31) is connected to the side wall of the motor (1) near the shaft end.

4. The dual-cooling fan motor heat dissipation structure according to claim 3 is characterized in that: The outlet end of the air outlet pipe (31) is connected to the inner ring of the volute (23) and the side wall corresponding to the impeller core.

5. The dual-cooling fan motor heat dissipation structure according to claim 1, characterized in that: The water cooling device comprises a water channel (42) arranged in the side wall of the motor (1) housing, the water channel (42) being between the inner side and the outer side of the motor (1) side wall, and a water inlet (4) and a water outlet (41) being respectively arranged at both ends of the water channel (42), and both the water inlet (4) and the water outlet (41) being arranged on the outer side wall of the motor (1).

6. The dual-cooling fan motor heat dissipation structure according to claim 5, characterized in that: The water channel (42) is a multi-circle channel arranged in correspondence with each other. The multi-circle channel of the water channel (42) is evenly distributed along the axial direction. The water inlet (4) and the water outlet (41) are respectively arranged on the outer side walls at the two corresponding ends of the motor (1) axially.

7. The dual-cooling fan motor heat dissipation structure according to claim 3, characterized in that: The connection points between the air intake pipe (3) and the air outlet pipe (31) and the side wall of the motor (1) are respectively located on two sides corresponding to the axial center of the motor (1).

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