TW201942016A - Heat dissipation structure of outer-rotation type motor including a refrigerant pipe, a pump and a container - Google Patents

Abstract

This invention discloses a heat dissipation structure of an outer-rotation type motor. The heat dissipation structure includes a refrigerant pipe, a pump and a container, wherein the middle section of the refrigerant pipe is a heat absorption section arranged on a support frame of a stator of the outer-rotation type motor; one end of the refrigerant pipe is connected with the pump, and the other end of the refrigerant pipe is connected with the container; the pump is connected with the container; the container is used for accommodating a refrigerant; the pump is used for pumping the refrigerant to circularly pass through the refrigerant pipe and the container; the pump and the container are respectively arranged outside the outer-rotation type motor, so that the refrigerant circularly flows to pass through the refrigerant pipe to absorb heat energy generated by a coil winding of the outer-rotation type motor. The refrigerant circulating through the refrigerant pipe absorbs thermal energy generated by the coil windings of the outer-rotation type motor and releases the thermal energy to the outside of the outer-rotation type motor, thereby improving the heat dissipation efficiency of the outer-rotation type motor.

Description

Radiating structure of external rotation motor

The present invention relates to a component of an electric vehicle, and more particularly, to a heat dissipation structure of an external rotation motor.

The stator of the external rotation motor is mainly composed of a support frame and a plurality of coil windings, each of the coil windings is provided on the outer periphery of the support frame, and the rotor of the external rotation motor surrounds the outer periphery of the stator. Each of the coil windings generates thermal energy. Since the stator of the external rotation motor is located inside the motor, how to effectively dissipate the stator has become an important issue.

Electric locomotive generally uses an external rotation motor as the power source for driving the wheels. The wheels driven by the external rotation motor are the driving wheels of the electric locomotive, which are generally called power wheels. Since the external rotation motor that drives the power wheel is provided on the power wheel The hub of the power wheel is generally called the hub motor. The axle of the power wheel is connected to the support frame of the hub motor. The rotor of the hub motor is connected to the rim of the power wheel. When the hub motor is running, the stator coils generate heat energy. The hub motor of an electric locomotive must block outside dust, foreign objects and rainwater from entering, and when the electric locomotive is running, it may require high torque and / or high speed to drive the power wheels. The coil windings need to be able to provide large currents without passing through. Overheating and fusing, so it is more important for the wheel motor to effectively dissipate heat.

The main object of the present invention is to provide a heat dissipation structure of an external rotation motor. The refrigerant tube is used to guide the refrigerant to circulate through the stator of the external rotation motor to improve the heat dissipation of the external rotation motor. effectiveness.

In order to meet the expected purpose, the present invention is a heat dissipation structure of an external rotation motor, which includes a refrigerant tube, a pump, and a container, wherein the middle section of the refrigerant tube is a heat absorption section provided on the stator of the external rotation motor A support frame, one end of the refrigerant tube is connected to the pump, and the other end is connected to the container; the pump is connected to the container; the container is used for containing the refrigerant; The refrigerant tube and the container, the pump and the container are respectively arranged outside the external rotation motor, and the refrigerant is circulated through the refrigerant tube to absorb the thermal energy generated by the coil winding of the external rotation motor.

As described above, the heat dissipation structure of the outer rotation motor, wherein the support frame is mainly composed of an outer ring, a middle portion and a plurality of connecting portions, the outer ring has a ring shape, and the outer ring is on the inner edge of the ring. A ring-shaped baffle is formed along the direction pointing to the middle portion, and each of the connecting portions connects the baffle and the middle portion respectively, and a middle portion of the refrigerant pipe is arc-shaped adjacent to the outer ring and the baffle. The baffle plate forms a stop for the refrigerant tube in the long axis direction of the support frame, and the outer ring restricts the refrigerant tube in the diameter direction of the support frame, and positions the middle part of the refrigerant tube accordingly.

As described above, the heat dissipation structure of the external rotation motor, wherein the support frame is provided with a plurality of restricting portions, each of which is connected to the annular inner edge of the baffle, and each of the restricting portions is adjacent to the refrigerant pipe. One side of the middle portion is adjacent to each other, so that each of the restricting portions forms a lateral restriction on the refrigerant pipe, thereby improving the reliability of positioning the middle portion of the refrigerant pipe.

As described above, the heat dissipation structure of the external rotation motor is further provided with a plurality of retaining elements, wherein each of the retaining elements is respectively connected to the connecting portion, and each of the retaining elements is adjacent to the refrigerant pipe and adjacent to the middle. One side of the part is adjacent; the holding element includes a base plate, a vertical plate, and a pressure plate, and one end of the vertical plate is in contact with the The base plate is vertically connected, the other end of the vertical plate is vertically connected with the pressure plate, the substrate is connected with the connection portion, the vertical plate is adjacent to a side of the refrigerant pipe adjacent to the middle portion, and the pressure plate is on the support frame A stop is formed on the refrigerant tube in the long axis direction, and a middle portion of the refrigerant tube is located between the pressure plate and the baffle, thereby improving the reliability of positioning the middle portion of the refrigerant tube.

(10) ‧‧‧Refrigerant tube

(20) ‧‧‧Holding element

(22) ‧‧‧Substrate

(24) ‧‧‧Stand

(26) ‧‧‧Press plate

(30) ‧‧‧Support

(31) ‧‧‧Outer ring

(32) ‧‧‧Middle

(33) ‧‧‧Link

(34) ‧‧‧Baffle

(35) ‧‧‧Restricted

(40) ‧‧‧Screw

The first figure is a schematic perspective view of a refrigerant pipe and a positioning frame according to an embodiment of the present invention.

The second figure is an exploded perspective view of the refrigerant pipe and the positioning frame according to the embodiment of the present invention.

The third figure is a front view of a positioning frame of an external rotation motor according to an embodiment of the present invention.

The fourth figure is a perspective view of a retaining element according to an embodiment of the present invention.

As shown in the first to third figures, the embodiment of the present invention includes a refrigerant pipe (10), several retaining elements (20), a pump (not shown in the figure), and a container (not shown in the figure) Among them, the middle section of the refrigerant pipe (10) is a support frame (30) of the heat absorption section provided on the stator of the external rotation motor. One end of the refrigerant pipe (10) is connected to the pump, and the other end is connected to the pump. The container is connected, and the pump is connected to the container. The container is used to contain the refrigerant. The pump is used to pump the refrigerant through the refrigerant pipe (10) and the container. The refrigerant is water or other heat that can absorb / release heat. The fluid, the pump and the container are respectively arranged outside the external rotation motor.

The support frame (30) is mainly composed of an outer ring (31), a middle portion (32), and a plurality of connecting portions (33). The outer ring (31) has a ring shape, and the outer ring (31) is on the ring. A ring-shaped baffle plate (34) is formed along the shape of the inner edge along the direction directed to the middle portion (32), and each of the connecting portions (33) connects the baffle plate (34) and the middle portion (32) respectively. When a rotary motor is used to drive the drive wheels of an electric locomotive, the middle part (32) It is a circular tube, and an axle (not shown) of the driving wheel is pivoted through the intermediate portion (32).

The support frame (30) is provided with a plurality of restricting portions (35), each of which is in contact with the annular inner edge of the baffle plate (34), and each of the restricting portions (35) is in an arc shape. For a better implementation option, when each of the restricting portions (35) has a circular arc shape, the arc-shaped center of each of the restricting portions (35) and the circular center of the outer ring (31) form a concentric shape. The restricting portion (35) has a selective configuration.

The middle part of the refrigerant pipe (10) is arc-shaped and is adjacent to the outer ring (31) and the baffle plate (34). The baffle plate (34) is aligned in the long axis direction of the support frame (30). The refrigerant pipe (10) forms a stop, and the outer ring (31) restricts the refrigerant pipe (10) in the diameter direction of the support frame (30), thereby positioning the middle section of the refrigerant pipe (10) .

When the support frame (30) has each of the aforementioned restricting portions (35), each of the restricting portions (35) is adjacent to a side of the refrigerant pipe (10) adjacent to the intermediate portion (32), and accordingly, each The restricting parts (35) form lateral restrictions on the refrigerant pipe (10), respectively, and improve the reliability of positioning of the middle section of the refrigerant pipe (10).

Each of the retaining elements (20) is connected to the connecting portion (33), and each of the retaining elements (20) is adjacent to a side of the refrigerant pipe (10) adjacent to the intermediate portion (32), As shown in the fourth figure, the retaining element (20) includes a base plate (22), a vertical plate (24), and a pressure plate (26). One end of the vertical plate (24) is vertically connected to the base plate (22). , The other end of the vertical plate (24) is perpendicularly connected to the pressing plate (26), the base plate (22) is connected to the connecting portion (33), and the vertical plate (24) and the refrigerant pipe (10) are adjacent to the One side of the middle part (32) is adjacent, the pressure plate (26) forms a stop for the refrigerant pipe (10) in the long axis direction of the support frame (30), and the middle part of the refrigerant pipe (10) is located at Between the pressure plate (26) and the baffle plate (34), thereby improving the reliability of positioning of the middle section of the refrigerant pipe (10), the base plate (22) can be locked to the support by a screw (40) Shelf (30).

Each of the holding elements (20) is an optional structure, and the supporting frame (30) has each of the The restricting portion (35) and each of the retaining elements (20) are preferred implementation options of the present invention.

When an electric current passes through a coil winding (not shown) provided on the outer periphery of the support frame (30), the thermal energy generated by the coil winding is transmitted to the axis direction of the support frame (30) through heat conduction form and heat radiation form, and circulates. The refrigerant in the refrigerant pipe (10) absorbs the heat energy generated by the coil winding, and releases the heat energy to the outside of the outer rotation motor, thereby improving the heat dissipation efficiency of the outer rotation motor. Further, when the outer rotation motor is used for When driving the driving wheels of the electric locomotive, the heat generated by the coil windings has not been transferred to the intermediate portion (32) and before the axle of the driving wheels. The refrigerant circulating through the refrigerant tube (10) first absorbs the coil windings. The thermal energy reduces the thermal energy experienced by the intermediate portion (32) and the axle, and reduces the adverse effects of the thermal energy on the physical properties such as the strength and the service life of the axle.

Claims (6)

A heat dissipation structure of an external rotation motor includes a refrigerant tube, a pump, and a container, wherein a middle portion of the refrigerant tube is a support frame provided on a stator of the external rotation motor by a heat absorption section, and one end of the refrigerant tube The pump is connected to the pump and the other end is connected to the container. The pump is connected to the container. The container is used for containing refrigerant. The pump is used for pumping refrigerant to circulate through the refrigerant pipe and the container. The container and the container are respectively provided on the outside of the external rotation motor, and the refrigerant is circulated through the refrigerant tube to absorb the thermal energy generated by the coil winding of the external rotation motor. According to the heat dissipation structure of the external rotation motor described in item 1 of the scope of the patent application, wherein the support frame is mainly composed of an outer ring, a middle portion and a plurality of connecting portions, the outer ring is annular, and the outer ring is formed on A ring-shaped baffle is formed along the ring-shaped inner edge along the direction of the middle portion, and each of the connecting portions connects the baffle and the middle portion, respectively. The middle portion of the refrigerant tube is arc-shaped with the outer ring and The baffle plates are adjacent to each other, the baffle plates stop the refrigerant tube in the long axis direction of the support frame, and the outer ring restricts the refrigerant tube in the diameter direction of the support frame. The middle section. According to the heat dissipation structure of the external rotation motor described in item 2 of the scope of patent application, the support frame is provided with a plurality of restricting portions, each of the restricting portions is respectively connected with the annular inner edge of the baffle, and each of the restricting portions is respectively connected with The refrigerant tube is adjacent to a side adjacent to the middle portion, and each of the restricting portions forms a lateral restriction on the refrigerant tube, thereby improving the reliability of positioning the middle portion of the refrigerant tube. According to the heat dissipation structure of the external rotation motor according to item 3 of the scope of the patent application, each of the restricting portions has a circular arc shape, and the arc-shaped center of each of the restricting portions forms a concentricity with the circular center of the outer ring. According to the heat dissipation structure of the external rotation motor described in item 2 or item 3 of the scope of patent application, a plurality of retaining elements are further provided, wherein each of the retaining elements is respectively connected to the connecting portion, and each of the retaining elements An element is adjacent to a side of the refrigerant pipe adjacent to the middle portion; the holding element includes a base plate, a vertical plate, and a pressure plate, one end of the vertical plate is vertically connected to the base plate, and the other end of the vertical plate is connected to the A pressure plate is vertically connected, the base plate is connected to the connecting portion, the vertical plate is adjacent to a side of the refrigerant pipe adjacent to the middle portion, and the pressure plate forms a stop for the refrigerant pipe in a long axis direction of the support frame, And the middle part of the refrigerant pipe is located between the pressure plate and the baffle, thereby improving the reliability of positioning the middle part of the refrigerant pipe. According to the heat dissipation structure of the external rotation motor described in item 5 of the patent application scope, wherein the substrate is locked to the support frame by a screw.