CN205178769U - Motor and integrated cooling structure of controller subassembly thereof - Google Patents

Abstract

The utility model relates to an integrated cooling structure of a motor and its controller assembly, comprising a housing, a motor chamber and a controller chamber are arranged in the housing, a motor is arranged in the motor chamber, and a controller assembly is arranged in the controller chamber; the motor includes a stator, The rotor and the motor shaft, the stator is fixedly installed in the cavity of the motor room, the rotor is set on the motor shaft and placed in the cavity of the stator, the two ends of the motor shaft are fixed in the motor room through bearings, and the fan blades are arranged on the motor shaft; The outer wall of the controller room is provided with an air inlet, the controller room and the motor room are respectively provided with airflow passages, and an air vent is provided between the controller room and the motor room, and an air outlet is provided on the outer wall of the motor room. The integrated cooling structure uses the cooling flow generated by the fan blades on the motor shaft to simultaneously cool and dissipate the controller assembly and the motor, so that it can not only ensure the cooling effect of the motor and controller assembly at the same time, but also has a compact structure, saving energy and space.

Description

Integrated cooling structure for motor and its controller components

technical field

The utility model relates to the field of electric equipment, in particular to an integrated cooling structure for a motor and a controller assembly of the electric equipment.

Background technique

In the prior art, the driving motor and the controller components of electric equipment (such as electric tools) are mostly arranged far apart, and the heat dissipation method of the two is usually that the driving motor is cooled by the wind blade installed on the motor shaft, and the effect is ideal. , while the controller component is generally cooled naturally through the heat sink unit installed on the surface, the effect is average, after a long working time, the controller component will heat up seriously, which will easily lead to unstable operation of the machine and even damage to the machine.

Utility model content

In view of the above problems, the utility model provides an integrated cooling structure that can ensure the cooling effect of the motor and the controller assembly at the same time, has a compact structure, saves energy and space.

The purpose of this utility model is achieved through the following technical solutions:

The integrated cooling structure of the motor and its controller assembly includes a housing, the housing is provided with a motor room and a controller room, the motor room is provided with a motor, and the controller room is provided with a controller assembly; the motor includes a stator, a rotor and The motor shaft, the stator is fixedly installed in the cavity of the motor room, the rotor is set on the motor shaft and placed in the cavity of the stator, the two ends of the motor shaft are fixed in the motor room through bearings, and the fan blades are arranged on the motor shaft; the controller The outer wall of the chamber is provided with an air inlet, the controller chamber and the motor chamber are respectively provided with air passages, and an air vent is provided between the controller chamber and the motor chamber, and an air outlet is provided on the outer wall of the motor chamber.

Further, a plurality of heat sink units are arranged on the surface of the controller assembly.

Further, the air inlet is set facing or close to the heat sink unit.

Further, the motor is a brushless motor, and the fan blade is an axial flow cooling fan blade.

Further, there are one or two fan blades.

Further, the controller room is arranged on any one of the front side, the rear side, the left side, the right side, the upper side and the lower side of the motor room.

Further, the controller room is composed of a controller room top cover and a controller room bottom cover, and the air inlet is opened on the controller room top cover.

Further, the motor room is composed of the upper cover of the motor room and the lower cover of the motor room, the stator is arranged at the upper end of the upper cover of the motor room, the fan blades are arranged at the lower end of the upper cover of the motor room, and the motor The upper cover of the chamber is provided with a windshield ring between the rotor and the fan blades, and the air outlet is opened on the lower end peripheral wall of the upper cover of the motor chamber.

Further, the upper cover of the motor chamber and the bottom cover of the controller chamber are integrally formed.

Further, there are multiple air inlets and air outlets.

Compared with the prior art, the utility model has the following advantages:

First of all, the integrated cooling structure arranges the motor and the controller components close together, and cleverly uses the cooling flow generated by the fan blades on the motor shaft to cool the controller components and the motor at the same time, so that both the motor and the controller can be guaranteed. The cooling effect of the components, thereby improving the working performance of the machine and prolonging the service life of the machine. Secondly, the fan blade is used for two purposes, which can avoid the waste caused by installing another fan device to cool the controller components separately, thereby achieving the effect of energy saving and consumption reduction. Furthermore, the close arrangement of the motor and the controller components also makes the structure of the machine compact, creating convenient conditions for saving space and reducing volume.

Description of drawings

Figure 1 is a schematic diagram of the integrated cooling structure of the motor and its controller assembly of the present invention, and the arrows in the figure indicate the direction of air flow.

detailed description

Below in conjunction with the embodiment that accompanying drawing provides, the utility model is described in further detail.

As shown in Figure 1, the integrated cooling structure of the motor and its controller assembly described in the present invention includes a housing 1, a motor chamber 2 and a controller chamber 3 are arranged in the housing 1, and a motor chamber 2 is provided in the motor chamber 2. 4. A controller assembly 5 is arranged in the controller room 3 . The motor 4 includes a stator 41, a rotor 42 and a motor shaft 43, the stator 41 is fixedly installed in the cavity of the motor chamber 2, the rotor 42 is set on the motor shaft 43 and placed in the cavity of the stator 41, and the two ends of the motor shaft 43 pass through the bearing 44 is installed and fixed in the motor chamber 2, and the motor shaft 43 is provided with fan blades 45. The outer wall of the controller room 3 is provided with a plurality of air inlets 31, the controller room 3 and the motor room 2 are respectively provided with air flow passages, and a vent 6 is provided between the controller room 3 and the motor room 2, and the motor room 2 A plurality of air outlets 21 are arranged on the outer wall of the body. When the motor rotates, the outside air enters the controller chamber 3 through the air inlet 31 under the suction of the fan blade 45, and the air flows through the controller assembly 5 to quickly take away the heat on the surface of the controller assembly 5, and then the air flow The port 6 enters the motor chamber 2, then flows into the coil slot of the stator 41 and the air gap between the stator and rotor 41, 42, and finally is discharged from the air outlet 21, thereby realizing simultaneous cooling of the controller assembly 5 and the motor 4.

Preferably, in order to improve the heat dissipation effect of the controller assembly 5 , a plurality of heat sink units 51 are arranged on the surface of the controller assembly 5 , and the air inlet 31 is arranged facing or close to the heat sink units 51 . During operation, the heat sink unit 51 gathers heat together, so after the air flows into the controller room 3, it only needs to flow through the heat sink unit 51 to quickly take away the heat and realize cooling.

Preferably, the motor 4 is a brushless motor, the fan blade 45 is an axial flow cooling fan blade, and there may be one or two fan blades 45 . When there is one fan blade 45, it can be arranged on the lower side of the rotor 42 on the motor shaft. When there are two fan blades 45, they can be respectively arranged on the upper and lower sides of the rotor 42 on the motor shaft.

The controller room 3 may be provided on any one of the front side, the rear side, the left side, the right side, the upper side, and the lower side of the motor room 2 . Preferably, in this embodiment, the controller room 3 is arranged on the right side of the motor room 2 .

Preferably, the controller chamber 3 is composed of a controller chamber top cover 32 and a controller chamber bottom cover 33 , and the air inlet 31 is opened on the controller chamber top cover 32 . The motor room 2 is formed by the motor room upper cover 22 and the motor room lower cover 23. The stator 41 is arranged on the upper end of the motor room upper cover 22, the fan blade 45 is arranged on the lower end of the motor room upper cover 22, and the motor room upper cover 22 A windshield ring 7 is arranged between the rotor 42 and the blades 45, and the air outlet 21 is opened on the lower end peripheral wall of the motor room upper cover 22, and the motor room upper cover 22 and the controller room bottom cover 33 are integrally formed.

As mentioned above, the integrated cooling structure of the motor and its controller assembly described in the present invention can be applied to various electric appliances.

The above are only preferred embodiments of the present utility model, and should not limit the scope of the utility model implementation with this, that is, all simple equivalent changes made according to the utility model patent application scope and utility model description content and modification, all still belong to the scope covered by the utility model patent.

Claims (10)

1. the integrated cooling structure of motor and controller assembly, comprises housing, it is characterized in that: be provided with motor room and controller room in described housing, be provided with motor in motor room, controller indoor are provided with controller assemblies; Motor comprises stator, rotor and motor shaft, and stator is fixedly mounted in the cavity of motor room, and rotor to be sleeved on motor shaft and to be placed in the die cavity of stator, and motor shaft two ends are fixed in motor room by bearing, and motor shaft is provided with fan blade; The outer wall of controller room is provided with air inlet, is respectively equipped with gas channel in controller room and motor room, and is provided with ventilating opening between controller room and motor room, and the outer wall of motor room is provided with air outlet.

2. the integrated cooling structure of motor and controller assembly according to claim 1, is characterized in that: described controller assemblies surface is provided with a plurality of fin unit.

3. the integrated cooling structure of motor and controller assembly according to claim 2, is characterized in that: described air inlet towards or arrange near fin unit.

4. the integrated cooling structure of motor and controller assembly according to claim 1 or 2 or 3, it is characterized in that: described motor is brushless electric machine, described fan blade is axial-flow type cooling fan blade.

5. the integrated cooling structure of motor and controller assembly according to claim 1 or 2 or 3, is characterized in that: described fan blade is set to one or two.

6. the integrated cooling structure of motor and controller assembly according to claim 1 or 2 or 3, is characterized in that: described controller room is arranged on any side in the front side of motor room, rear side, left side, right side, upside, downside.

7. the integrated cooling structure of motor and controller assembly according to claim 1 or 2 or 3, is characterized in that: described controller room is covered by controller room top cover and controller room bottom and forms, and described air inlet is opened on the top cover of controller room.

8. the integrated cooling structure of motor and controller assembly according to claim 7, it is characterized in that: described motor room is covered by motor room's upper cover and motor room's lower cover and forms, described stator is laid in upper end in motor room's upper cover, described fan blade is laid in lower end in motor room's upper cover, between rotor and fan blade, be provided with fan shroud in described motor room upper cover, described air outlet is opened on the lower end perisporium of motor room's upper cover.

9. the integrated cooling structure of motor and controller assembly according to claim 8, is characterized in that: described motor room upper cover and controller room bottom one-body molded.

10. the integrated cooling structure of motor and controller assembly according to claim 1 or 2 or 3, is characterized in that: described air inlet and air outlet are equipped with a plurality of.