TWM511715U - Water-cooling type motor device - Google Patents

Description

Water-cooled motor unit

The present invention relates to a motor device, and more particularly to a water-cooled motor device.

Referring to Figure 1, a water-cooled motor unit is disclosed in the Republic of China Patent Publication No. 169755. The water-cooled motor unit includes a motor casing 1, a motor 2, a blade 3, and a cooling casing 4.

The motor casing 1 defines an accommodating space 11 and a cooling space 12 surrounding the accommodating space 11. The motor 2 is disposed in the accommodating space 11 of the motor casing 1 and includes a rotatable drive shaft 21. The blade 3 is connected to one end of the drive shaft 21 of the motor 2. The cooling housing 4 is coupled to the motor casing 1 and covers the blade 3, and defines a liquid storage space 41 communicating with the cooling space 12 of the motor casing 1, and includes the liquid storage space 41. One liquid inlet 42 and one liquid outlet 43 are connected.

In use, the liquid 5 flows into the liquid storage space 41 of the cooling casing 4 from the liquid inlet 42 of the cooling casing 4, since the cooling space 12 of the motor casing 1 is a liquid storage with the cooling casing 4. The space 41 is directly connected, so that the liquid 5 also flows into the cooling space 12 of the motor casing 1. When the motor 2 starts to operate, the drive shaft 21 of the motor 2 drives the fan. The leaf 3 rotates to promote the flow of the liquid 5, and finally, flows out from the liquid outlet 43 of the cooling casing 4, and the heat generated by the operation of the motor 2 can be transmitted to the outside through the liquid 5 to cool the motor 2 Effect.

However, since the liquid inlet 42 and the liquid outlet 43 are both disposed on the same side of the motor casing 1, when the motor 2 is operated, the liquid 5 is guided by the blade 3, and part of the liquid is rotated. This liquid 5 which has not been subjected to heat exchange is directly sent to the liquid discharge port 43 and flows out, so that the cooling efficiency is not good. The motor 2 is operated under the high water pressure of the liquid storage chamber 41 of the cooling casing 4 and the cooling space 12 of the motor casing 1, so that the motor 2 has a high operating load and consumes electricity. Big missing.

Accordingly, it is an object of the present invention to provide a water-cooled motor unit that increases cooling efficiency.

Therefore, the novel water-cooled motor device comprises a motor casing unit, a motor, a cooling casing and an impeller unit. The motor casing unit defines an accommodating space and a cooling chamber surrounding the accommodating space, and includes a liquid injection port and a liquid discharge port communicating with the cooling chamber. The motor is disposed in the accommodating space of the motor casing unit and includes a rotatable drive shaft. The cooling cabinet is coupled to the motor casing unit and defines a liquid storage space, and includes an inlet port and a liquid outlet connected to the liquid storage space. The impeller unit is coupled to one end of a drive shaft of the motor and disposed in a liquid storage space of the cooling cabinet. The impeller unit is rotatable by the drive shaft of the motor to rotate a liquid entering the liquid storage space of the cooling casing from the liquid inlet of the cooling casing to the cooling The liquid outlet of the casing flows out and flows to the liquid injection port of the motor casing unit to enter the cooling chamber to cool the motor, and is discharged from the liquid discharge port of the motor casing unit.

The utility model has the effect of isolating the liquid storage space of the cooling casing from the cooling chamber of the motor casing unit, and connecting the liquid outlet of the cooling casing to the liquid injection port space of the motor casing unit. In design, the liquid must enter the cooling chamber of the motor casing unit to achieve the purpose of heat exchange, at the same time, reduce the running load of the motor and increase the liquid flow speed, thereby improving the cooling efficiency.

6‧‧‧Motor housing unit

60‧‧‧Liquid

61‧‧‧Motor housing

610‧‧‧Open end

6101‧‧‧Open end

6102‧‧‧Open end

611 ‧ ‧ around the wall

612‧‧‧ outer surrounding wall

6121‧‧‧ venting holes

613‧‧‧Connecting wall

614‧‧‧ Heat sink fins

615‧‧‧ accommodating space

616‧‧‧The cooling room

6161‧‧‧The cooling department

62‧‧‧First cover

621‧‧‧First interior space

622‧‧‧Injection chamber

623‧‧‧Injection port

63‧‧‧Second cover

631‧‧‧Second internal space

632‧‧‧Draining chamber

633‧‧‧Draining port

7‧‧‧Motor

71‧‧‧Drive shaft

8‧‧‧Cooling case

81‧‧‧Liquid space

82‧‧‧Inlet

83‧‧‧liquid outlet

9‧‧‧ Impeller unit

10‧‧‧ Connection unit

Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is a cross-sectional view of a conventional water-cooled motor device. FIG. 2 is an embodiment of the present water-cooled motor device. 3 is an exploded perspective view of the embodiment; FIG. 4 is a side view of the embodiment; FIG. 5 is a cross-sectional view taken along line VV of FIG. 4, illustrating a liquid in the embodiment. The flow path in the middle; and FIG. 6 is a partially enlarged cross-sectional view showing a cooling case and an impeller unit of the embodiment.

Referring to Figures 2, 3 and 5, the novel water-cooled motor device One embodiment of the vehicle is mounted on an electric vehicle (not shown) such as, but not limited to, an electric vehicle, an electric motor vehicle, or an electric bicycle. An embodiment of the novel water-cooled motor unit includes a motor housing unit 6, a motor 7 including a rotatable drive shaft 71, a cooling housing 8, an impeller unit 9, and a connecting unit 10.

The motor housing unit 6 includes a motor housing 61, a first cover 62, and a second cover 63.

The motor housing 61 has an inner surrounding wall 611, an outer surrounding wall 612, a plurality of spaced apart connecting walls 613, and a plurality of spaced apart fins 614. The inner surrounding wall 611 defines an accommodation space 615 that extends along the length of the inner surrounding wall 611 and has two opposite open ends 6101. The outer surrounding wall 612 surrounds the inner surrounding wall 611 and cooperates with the inner surrounding wall 611 to define a cooling chamber 616 in which the liquid 60 for cooling the motor 7 flows. The cooling chamber 616 extends along the length of the outer surrounding wall 612 and has two opposite open ends 6102. A vent hole 6121 is formed in the outer surrounding wall 612. The connecting wall 613 is located between the inner surrounding wall 611 and the outer surrounding wall 612, and connects the inner surrounding wall 611 and the outer surrounding wall 612, and separates the cooling chamber 616 from the plurality of cooling portions 6161. One of the cooling portions 6161 communicates with the vent hole 6121. The heat dissipation fins 614 are located in the corresponding cooling portion 6161 and extend from the inner surrounding wall 611 to the outer surrounding wall 612, respectively. The motor housing 61 also has two opposite open ends 610. Each open end 610 is formed by a respective open end portion 6101 of the accommodating space 615 and a respective open end portion 6102 of the cooling chamber 616.

The first cover 62 is used to close one of the open ends 610 of the motor housing 61. The first cover 62 defines a first internal space 621 (see FIG. 5) that communicates with the accommodating space 615 of the motor housing 61, and a first inner space 621 and the motor housing 61. The cooling chamber 616 is in communication with the liquid injection chamber 622 (see FIG. 5) and includes a liquid inlet 623 communicating with the liquid injection chamber 622. The cross-sectional shape of the injection chamber 622 perpendicular to the drive shaft 71 of the motor 7 is annular.

The second cover 63 is used to close the other open end 610 of the motor housing 61. The second cover 63 defines a second internal space 631 communicating with the accommodating space 615 of the motor housing 61, and a cooling chamber 616 surrounding the second internal space 631 and the motor housing 61. The drain chamber 632 is opened and includes a drain port 633 communicating with the drain chamber 632. The cross-sectional shape of the discharge chamber 632 perpendicular to the drive shaft 71 of the motor 7 is annular. When the liquid 60 flows into the cooling portion 6161 of the motor housing 61, the liquid injection chamber 622 of the first cover 62, and the liquid discharge chamber 632 of the second cover 63, the cooling unit 6161, the liquid injection The air in the chamber 622 and the liquid discharge chamber 632 can be discharged through the vent hole 6121. After the cooling portion 6161, the liquid injection chamber 622 and the liquid discharge chamber 632 overflow the liquid 60, the waterproof gasket is used. The vent hole 6121 is sealed with a screw (not shown).

The motor 7 is disposed in the accommodating space 615 of the motor housing 61 of the motor housing unit 6. Since the structure of the motor 7 is not a technical feature of the present invention, it will not be described herein. The drive shaft 71 of the motor 7 is adjacent to one end of the second cover 63 of the motor casing unit 6 and is connectable to a drive assembly (not shown) of the electric vehicle. When the motor 7 is running, the drive shaft of the motor 7 71 drives the drive assembly of the electric vehicle to operate the electric vehicle.

Referring to Figures 4-6, the cooling casing 8 detachably connects the first cover 62 of the motor casing unit 6 and defines a liquid storage space for the liquid 60 to flow and pressurize the liquid 60. 81 (see Fig. 6), and including a liquid inlet port 82 communicating with the liquid storage space 81 for the liquid 60 to enter, and a liquid outlet port communicating with the liquid storage space 81 for the liquid 60 to flow out 83.

The impeller unit 9 is coupled to the drive shaft 71 of the motor 7 adjacent to one end of the first cover 62 of the motor casing unit 6, and is disposed in the liquid storage space 81 of the cooling casing 8. The connecting unit 10 is for example but not limited to a steel pipe or a plastic pipe. The connecting unit 10 is connected to the liquid filling port 623 of the first cover 62 of the motor casing unit 6 and the liquid outlet 83 of the cooling casing 8.

When the motor 7 is in operation, the impeller unit 9 can be driven to rotate by the drive shaft 71 of the motor 7, and the liquid 60 enters the liquid storage space 81 from the liquid inlet 82 of the cooling casing 8, and then, The liquid is discharged to the liquid outlet 83 and flows out, and then flows through the connection unit 10 to the liquid inlet 623 of the first cover 62 of the motor casing unit 6 to enter the liquid injection chamber 622, and then the liquid injection chamber 622 enters the cooling portion 6161 of the cooling chamber 616 of the motor housing 61 to cool the motor 7 and collect it into the liquid discharge chamber 632 of the motor casing unit 6, and the second cover of the motor casing unit 6 The liquid discharge port 633 of the body 63 is discharged.

In summary, the present invention substantially isolates the liquid storage space 81 of the cooling casing 8 from the cooling chamber 616 of the motor casing unit 6 only by the liquid outlet 83 of the cooling casing 8 and The motor casing unit 6 The liquid inlet 623 of the first cover 62 is spatially connected, so that the liquid must enter the cooling chamber 616 of the motor housing 61 of the motor casing unit 6 for the purpose of heat exchange, and at the same time, the operation of the motor 7 is only The liquid 60 to be driven in the liquid storage space 81 flows, and the operating load of the motor 7 can be alleviated, so that the flow velocity of the liquid 60 in the liquid storage space 81 can be increased, and the liquid 60 in the cooling chamber 611 is caused to flow. The speed is also increased, which in turn increases the cooling efficiency, so it is indeed possible to achieve the purpose of the present invention.

However, the above is only a preferred embodiment of the present invention, and when it is not possible to limit the scope of the present invention, any simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification are It is still within the scope of this new patent.

6‧‧‧Motor housing unit

61‧‧‧Motor housing

610‧‧‧Open end

6101‧‧‧Open end

6102‧‧‧Open end

611 ‧ ‧ around the wall

612‧‧‧ outer surrounding wall

6121‧‧‧ venting holes

613‧‧‧Connecting wall

614‧‧‧ Heat sink fins

615‧‧‧ accommodating space

616‧‧‧The cooling room

6161‧‧‧The cooling department

62‧‧‧First cover

623‧‧‧Injection port

63‧‧‧Second cover

631‧‧‧Second internal space

632‧‧‧Draining chamber

633‧‧‧Draining port

7‧‧‧Motor

8‧‧‧Cooling case

82‧‧‧Inlet

83‧‧‧liquid outlet

9‧‧‧ Impeller unit

10‧‧‧ Connection unit

Claims (9)

A water-cooled motor device comprising: a motor casing unit defining an accommodation space and a cooling chamber surrounding the accommodation space, and including a liquid injection port and a liquid discharge port communicating with the cooling chamber; a motor disposed in the accommodating space of the motor casing unit and including a rotatable drive shaft; a cooling casing connecting the motor casing unit and defining a liquid storage space, and including the storage a liquid inlet and a liquid outlet connected to the liquid space; and an impeller unit connected to one end of the drive shaft of the motor and disposed in the liquid storage space of the cooling cabinet, the impeller unit being driven by the motor The shaft is driven to rotate such that a liquid entering the liquid storage space of the cooling casing from the liquid inlet of the cooling casing is sent to the liquid outlet of the cooling casing and flows out to the motor casing. The liquid inlet of the unit enters the cooling chamber to cool the motor, and is discharged from the liquid discharge port of the motor casing unit. The water-cooled motor device of claim 1, wherein the motor casing unit comprises a motor housing having the motor disposed therein and having opposite open ends, and a first cover body respectively closing the open ends The second cover. The water-cooled motor device of claim 2, wherein the motor housing has an inner surrounding wall defining the receiving space, a connection and surrounding the inner surrounding wall and defining the inner surrounding wall Outside the cooling room Surrounding the wall, and a plurality of heat dissipating fins spaced apart from the inner surrounding wall and extending toward the outer surrounding wall. The water-cooled motor device of claim 3, wherein the motor housing further has a plurality of spaced apart between the inner surrounding wall and the outer surrounding wall and connecting the inner surrounding wall and the outer surrounding wall Connecting walls, and the connecting walls separate the cooling chamber of the motor housing from the plurality of cooling portions. The water-cooled motor device according to claim 3, wherein the liquid inlet is formed in the first cover, and the liquid discharge port is formed in the second cover. The water-cooled motor device of claim 5, wherein the first cover of the motor housing defines a liquid injection chamber in communication with the cooling chamber of the motor housing, and the second cover of the motor housing The body defines a drain chamber in communication with the cooling chamber of the motor housing. The water-cooled motor device of claim 6, wherein the injection chamber of the first cover of the motor housing has a circular cross-sectional shape perpendicular to a drive shaft of the motor, and the second cover of the motor housing The cross-sectional shape of the body of the discharge chamber perpendicular to the drive shaft of the motor is annular. The water-cooled motor device of claim 2, wherein the cooling casing is detachably coupled to the first cover of the motor casing unit. The water-cooled motor device according to claim 1 or 8, further comprising a connection unit that connects the liquid injection port of the motor casing unit and the liquid outlet of the cooling casing.