An electric motor cooling device

Abstract

The utility model discloses a motor cooling device, including the shell, the shell includes the main casing with the first end cover and the second end cover of axial through arrangement and respectively installing in the axial both ends of main casing, a plurality of mutually separate first chamber is arranged to the first end cover inside along the circumferential direction, a plurality of mutually separate second chamber is arranged to the second end cover inside along the circumferential direction, first chamber and second chamber are alternately arranged and set, a plurality of mutually separate connecting channel is arranged to the main casing inside along the circumferential direction, the water inlet end of second chamber and the water outlet end of its one adjacent first chamber, the water outlet end of second chamber and the water inlet end of its another adjacent first chamber are communicated through connecting channel respectively, so that first chamber and second chamber are alternately communicated and are connected in series through connecting channel and form a water cooling channel. The utility model makes the simple structure of shell, and processing is easy, and the manufacturing cost is low, and the path and the area of water cooling channel are larger, and the heat dissipation effect is good.

Description

Technical Field

[0001] This utility model relates to the field of motor cooling technology, and specifically to a motor cooling device. Background Technology

[0002] Existing water-cooled motors use a spiral water-cooling channel inside the motor casing to dissipate heat by circulating cooling water. However, this design makes the casing structure complex, difficult to process, and costly to manufacture. The path and area of ​​the water-cooling channel are also relatively small, resulting in unsatisfactory heat dissipation. Utility Model Content

[0003] The present invention aims to provide a motor cooling device to solve the aforementioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a motor cooling device includes a housing, which includes a main housing that is axially connected and a first end cover and a second end cover respectively installed at the two ends of the main housing along the axial direction. The first end cover has a plurality of mutually separated first chambers arranged along the circumferential direction, and the second end cover has a plurality of mutually separated second chambers arranged along the circumferential direction. The first chambers and second chambers are arranged alternately. The main housing has a plurality of mutually separated connecting channels arranged along the circumferential direction. The water inlet of the second chamber is connected to the water outlet of an adjacent first chamber, and the water outlet of the second chamber is connected to the water inlet of another adjacent first chamber through connecting channels, so that the first chambers and second chambers are alternately connected in series through connecting channels to form a water cooling channel.

[0005] Preferably, the water cooling channel is arranged in a continuous S-shape extending in the circumferential direction of the outer shell.

[0006] Preferably, a plurality of first chambers are evenly arranged in the first end cover along the circumferential direction, a plurality of second chambers are evenly arranged in the second end cover along the circumferential direction, and a plurality of connecting channels are evenly arranged in the main housing along the circumferential direction.

[0007] Preferably, annular sealing gaskets are provided between the first end cover and the main housing, and between the second end cover and the main housing, respectively. Multiple water passage holes are provided on the annular sealing gaskets along the circumferential direction. The water inlet or outlet of the first chamber is connected to the connecting channel through the water passage holes, and the water inlet or outlet of the second chamber is connected to the connecting channel through the water passage holes.

[0008] Preferably, it also includes bolts, the main housing is a cylindrical structure that runs vertically through the body, and the first end cap and the second end cap are respectively sealed and locked to the lower end and the upper end of the main housing by bolts.

[0009] Preferably, the cross-sections of the first chamber, the second chamber, and the connecting channel are all arc-shaped, the connecting channel is arranged vertically, the first chamber is a lower arc-shaped groove with an open top side, and the second chamber is an upper arc-shaped groove with an open bottom side.

[0010] Preferably, a water inlet is provided on the periphery of the first end cover, and the water inlet of the first chamber at the beginning of the water cooling channel is connected to the water inlet, and a water inlet pipe is connected to the outside of the water inlet.

[0011] Preferably, a water outlet is provided on the periphery of the second end cover, and the water outlet of the second chamber at the tail end of the water cooling channel is connected to the water outlet, and a water pipe is connected to the water outlet.

[0012] Preferably, the main housing is made of aluminum; and / or the first end cap and the second end cap have the same structure.

[0013] Preferably, it also includes a motor, with the housing mounted on the outside of the motor.

[0014] This utility model has the following beneficial effects: This invention connects the first and second chambers in an alternating series via a connecting channel to form a water-cooling channel. Specifically, the water-cooling channel is formed by connecting the first chamber, connecting channel, second chamber, connecting channel, first chamber, connecting channel, and second chamber in a continuous S-shape towards the circumference of the outer casing. Cooling water is circulated through the water-cooling channel, flowing continuously in an S-shape within the outer casing before being discharged. This removes heat from the motor, achieving its cooling function. This design simplifies the casing structure, makes processing easier, reduces manufacturing costs, and provides a larger path and area for the water-cooling channel, resulting in more ideal heat dissipation and enabling rapid cooling of the motor, thus extending its service life. Attached Figure Description

[0015] Figure 1 This is a perspective view of an embodiment of the present invention.

[0016] Figure 2 This is a top view of an embodiment of the present invention.

[0017] Figure 3 yes Figure 2 Sectional view at point AA.

[0018] Figure 4 This is a side view of an embodiment of the present invention.

[0019] Figure 5 yes Figure 4 Sectional view at point BB.

[0020] Figure 6 This is an exploded view of an embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the main housing structure of an embodiment of this utility model.

[0022] Figure 8 This is a schematic diagram of the structure of the first end cap according to an embodiment of the present invention.

[0023] Figure 9 This is a schematic diagram of the structure of the annular sealing gasket according to an embodiment of the present invention.

[0024] Figure 10 This is a planar unfolded schematic diagram of the flow path of the water-cooling channel according to an embodiment of this utility model.

[0025] Attached figures: 1 Motor, 2 Housing, 21 First end cover, 22 Second end cover, 23 Main housing, 3 First chamber, 4 Second chamber, 5 Connecting channel, 6 Water cooling channel, 7 Annular sealing gasket, 8 Water passage hole, 9 Bolt, 10 Locking hole, 11 Water inlet, 12 Water inlet pipe, 13 Water outlet, 14 Water outlet pipe. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] See Figure 1-10 As shown in the figure, as an embodiment of the present invention, a motor cooling device is provided, including a motor 1 and a housing 2 installed outside the motor 1. The housing 2 includes a main housing 23 axially extending through the motor and a first end cover 21 and a second end cover 22 respectively installed at the two ends of the main housing 23 axially. The first end cover 21 has a plurality of mutually separated first chambers 3 arranged circumferentially, and the second end cover 22 has a plurality of mutually separated second chambers 4 arranged circumferentially. The first chambers 3 and second chambers 4 are arranged alternately. The main housing 23 has a plurality of mutually separated connecting channels 5 arranged circumferentially. The water inlet of a second chamber 4 is connected to the water outlet of an adjacent first chamber 3, and the water outlet of a second chamber 4 is connected to the water inlet of another adjacent first chamber 3 through the connecting channels 5, so that the first chamber 3 and the second end cover 22 are connected circumferentially. The two chambers 4 are alternately connected in series via connecting channels 5 to form a water-cooling channel 6. That is, the water-cooling channel 6 is formed by connecting the first chamber 3, connecting channel 5, second chamber 4, connecting channel 5, first chamber 3, connecting channel 5, and second chamber 4 in a continuous S-shape towards the circumference of the outer shell 2. Cooling water is introduced into the water-cooling channel 6, and the cooling water flows continuously in an S-shape towards the circumference of the outer shell 2 and is finally discharged, thereby removing the heat of the motor 1 and realizing the heat dissipation and cooling function of the motor 1. This configuration makes the structure of the outer shell 2 simpler, easier to process, and lower in manufacturing cost. Moreover, the path and area of ​​the water-cooling channel 6 are larger, and the heat dissipation effect is more ideal, thereby enabling rapid cooling of the motor 1 and extending the service life of the motor 1.

[0030] In this embodiment, the first end cap 21 and the second end cap 22 have the same structure and size. The first end cap 21 and the second end cap 22 are staggered at a certain angle during assembly, so that the first chamber 3 and the second chamber 4 are arranged alternately from the perspective of the axial direction. This arrangement can reduce the processing difficulty and cost and improve the assembly efficiency.

[0031] In this embodiment, three first chambers 3 are evenly arranged in the first end cover 21 along the circumferential direction, three second chambers 4 are evenly arranged in the second end cover 22 along the circumferential direction, and six connecting channels 5 are evenly arranged in the main housing 23 along the circumferential direction. The three first chambers 3 and the three second chambers 4 are alternately connected in series through five connecting channels 5 to form a water cooling channel 6. The other connecting channel 5 is left empty as an air heat dissipation channel. The structure of the first chambers 3, second chambers 4 and connecting channels 5 being evenly arranged makes the cooling effect of the motor 1 cooling device more uniform and stable, and improves the heat dissipation efficiency.

[0032] In this embodiment, annular sealing gaskets 7 are respectively provided between the first end cover 21 and the main housing 23, and between the second end cover 22 and the main housing 23. Multiple water passage holes 8 are provided on the annular sealing gaskets 7 along the circumferential direction. The water inlet or outlet of the first chamber 3 is connected to the connecting channel 5 through the water passage holes 8, and the water inlet or outlet of the second chamber 4 is connected to the connecting channel 5 through the water passage holes 8. This arrangement can increase the water pressure of the water cooling channel 6, while controlling the water flow direction and flow rate, ensuring the smooth flow of cooling water, and thus ensuring the cooling effect of the motor 1.

[0033] It also includes bolts 9. The main housing 23 is a cylindrical structure that runs vertically through the body. The first end cover 21, the second end cover 22, the annular sealing gasket 7, and the main housing 23 are provided with corresponding locking holes 10. The bolts 9 are used to cooperate with the locking holes 10 to seal and lock the first end cover 21 and the second end cover 22 to the lower and upper ends of the main housing 23, respectively, and to seal and lock the annular sealing gasket 7 between the first end cover 21 and the main housing 23, and between the second end cover 22 and the main housing 23, so as to ensure the assembly sealing and reliability.

[0034] In this embodiment, the cross-sections of the first chamber 3, the second chamber 4, and the connecting channel 5 are all arc-shaped, which maximizes the use of the internal space of the outer shell 2, thereby increasing the volume and surface area of ​​the water-cooling channel 6 and further improving the cooling efficiency. The connecting channel 5 is arranged vertically, the first chamber 3 is a lower arc-shaped groove with an open top side, and the second chamber 4 is an upper arc-shaped groove with an open bottom side, which makes processing more convenient and easier, and the processing cost is lower.

[0035] In this embodiment, a water inlet 11 is provided on the periphery of the first end cover 21, and the water inlet of the first chamber 3 at the beginning of the water cooling channel 6 is connected to the water inlet 11. A water inlet pipe 12 is connected to the water inlet 11. A water outlet 13 is provided on the periphery of the second end cover 22, and the water outlet of the second chamber 4 at the end of the water cooling channel 6 is connected to the water outlet 13. A water outlet pipe 14 is connected to the water outlet 13. Cooling water flows into the first chamber 3 at the beginning of the water cooling channel 6 through the water inlet pipe 12 and the water inlet 11 in sequence, and then flows continuously in an S-shape in the circumferential direction of the outer shell 2 to remove the heat of the motor 1. Finally, it is discharged through the second chamber 4 at the end of the water cooling channel 6, the water inlet pipe 12, and the water inlet 11 in sequence. The cooling water is finally discharged to the brush plate as cleaning water for secondary washing, thus saving water resources. The inlet 11 and outlet 13 are located on end caps at both ends, making the manufacturing process simpler.

[0036] In this embodiment, the main housing 23 is an aluminum main housing, which further improves heat dissipation efficiency and makes the processing simpler. The first end cover 21, the second end cover 22, and the annular sealing gasket 7 are metal components to ensure structural strength.

[0037] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A motor cooling device, characterized in that: The device includes an outer shell, which comprises a main shell that is axially connected and a first end cover and a second end cover respectively installed at the two ends of the main shell along the axial direction. The first end cover has a plurality of mutually separated first chambers arranged along the circumferential direction, and the second end cover has a plurality of mutually separated second chambers arranged along the circumferential direction. The first chambers and second chambers are arranged alternately. The main shell has a plurality of mutually separated connecting channels arranged along the circumferential direction. The water inlet of the second chamber is connected to the water outlet of an adjacent first chamber, and the water outlet of the second chamber is connected to the water inlet of another adjacent first chamber through connecting channels, so that the first chambers and second chambers are alternately connected in series through connecting channels to form a water cooling channel.

2. The motor cooling device according to claim 1, characterized in that: The water-cooling channel is designed to extend in a continuous S-shape in the circumferential direction of the outer shell.

3. The motor cooling device according to claim 1, characterized in that: Multiple first chambers are evenly arranged in the first end cover along the circumference, multiple second chambers are evenly arranged in the second end cover along the circumference, and multiple connecting channels are evenly arranged in the main housing along the circumference.

4. The motor cooling device according to claim 1, characterized in that: Annular sealing gaskets are respectively provided between the first end cover and the main housing, and between the second end cover and the main housing. Multiple water passage holes are provided on the annular sealing gaskets along the circumferential direction. The water inlet or outlet of the first chamber is connected to the connecting channel through the water passage holes, and the water inlet or outlet of the second chamber is connected to the connecting channel through the water passage holes.

5. The motor cooling device according to claim 1, characterized in that: It also includes bolts. The main housing is a cylindrical structure that runs vertically through the body. The first end cap and the second end cap are respectively sealed and locked to the lower and upper ends of the main housing by bolts.

6. The motor cooling device according to claim 5, characterized in that: The cross-sections of the first chamber, the second chamber, and the connecting channel are all arc-shaped. The connecting channel is vertically connected. The first chamber is a lower arc-shaped groove with an open top side, and the second chamber is an upper arc-shaped groove with an open bottom side.

7. The motor cooling device according to claim 1, characterized in that: A water inlet is provided on the periphery of the first end cover. The water inlet of the first chamber at the beginning of the water cooling channel is connected to the water inlet, and an external water inlet pipe is connected to the water inlet.

8. The motor cooling device according to claim 1, characterized in that: A water outlet is provided on the periphery of the second end cap. The water outlet of the second chamber at the tail end of the water cooling channel is connected to the water outlet, and a water pipe is connected to the water outlet.

9. The motor cooling device according to claim 1, characterized in that: The main housing is made of aluminum; and / or the first end cap and the second end cap have the same structure.

10. The motor cooling device according to any one of claims 1-9, characterized in that: It also includes a motor, with the housing mounted on the outside of the motor.

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