Sealing water-cooled motor casing

Abstract

The utility model provides a kind of sealed water cooling machine shell for motor, comprising: motor casing, motor casing includes heat-conducting inner casing and outer casing, heat-conducting inner casing and outer casing both ends are evenly set as opening, outer casing both ends are threadedly connected with connecting plate, outer casing surface central position is fixedly connected with limit plate;Water cooling mechanism is set between heat-conducting inner casing and outer casing. Water cooling mechanism is set, external coolant is in by inlet and outlet pipe into connecting plate, is spouted from inlet and outlet hole, under the flow guiding effect of guide plate and limit plate, along liquid guide channel flow, coolant flows, the heat absorbed by heat-conducting inner casing is taken along coolant, coolant flows from the inlet and outlet hole of another end, is discharged by another inlet and outlet pipe, realize the circulation of coolant, heat dissipation is carried out to motor by the circulation of coolant, coolant is directly contacted with heat-conducting inner casing, improve heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of motor housing technology, specifically to a sealed water-cooled housing for motors. Background Technology

[0002] A permanent magnet motor is a hybrid type of permanent magnet motor, characterized by rectangular pulse waves, sinusoidal current, and a type of permanent magnet motor. Once manufactured, a permanent magnet motor can maintain its magnetic field without external energy. The rotor of a permanent magnet motor is equipped with permanent magnet poles. Permanent magnet motors are typically used in low-power applications. A water-cooled housing is a casing used to cool permanent magnet motors, effectively reducing their operating temperature and improving equipment performance and reliability. The water-cooled housing employs a technology different from traditional heat dissipation methods, combining electronic equipment with a water-cooling system to more effectively absorb and conduct heat.

[0003] Chinese patent application CN201820637346.6 discloses a water-cooled motor housing with excellent heat dissipation and convenient manufacturing. The water-cooled motor housing includes an outer shell, an inner shell, a mounting block, and a circulating water pipe. The outer shell is fitted over the inner shell. The mounting block is located on the outer surface of the inner shell near its end, and the outer shell is fixedly connected to the inner shell via the mounting block. The circulating water pipe is spirally wound around the outer surface of the inner shell and fixedly connected to it. The outer surface of the outer shell has an inlet and an outlet, which are respectively connected to the circulating water pipe. A potting compound is provided between the inner and outer shells to fill the gaps. The device uses a spiral circulating water path, resulting in low hydraulic loss. Combined with the fins outside the water pipe, it provides excellent heat dissipation. The closed-loop pipe eliminates crossflow and leakage. The shell diameter and length can be quickly changed according to different needs, offering high manufacturing flexibility. It is simple and convenient to process, requires less processing, and has low manufacturing costs.

[0004] However, the following drawbacks still exist:

[0005] The contact area between the circulating water pipe and the inner shell is small, so the cooling water carries away less heat, resulting in poor heat dissipation. Utility Model Content

[0006] The present invention aims to solve the problems mentioned in the background art by providing a sealed water-cooled housing for motors.

[0007] The specific technical solution is as follows:

[0008] A sealed water-cooled housing for an electric motor includes: a motor housing, the motor housing comprising a heat-conducting inner housing and an outer housing, both ends of the heat-conducting inner housing and the outer housing being open, both ends of the outer housing being threadedly connected to connecting plates, and a limiting plate being fixedly connected at the center of the surface of the outer housing; and a water-cooling mechanism disposed between the heat-conducting inner housing and the outer housing for dissipating heat absorbed by the heat-conducting inner housing.

[0009] The aforementioned sealed water-cooled housing for motors includes a water-cooling mechanism comprising a water guide plate fixedly connected to the outer surface of a heat-conducting inner housing, a liquid guiding channel between two adjacent water guide plates, an inlet / outlet hole on the surface of a connecting plate, and an inlet / outlet pipe fixedly installed on one side of the connecting plate, which communicates with the inlet / outlet hole.

[0010] The aforementioned sealed water-cooled housing for motors, wherein: the liquid guiding channel is provided correspondingly with the liquid inlet and outlet holes, and the heat-conducting inner housing is made of copper.

[0011] The aforementioned sealed water-cooled housing for motors includes a limiting plate fixedly connected to the top of the water guide plate, and a limiting groove corresponding to the water guide plate and the limiting plate is provided on the inner wall of the housing.

[0012] The aforementioned sealed water-cooled housing for motors includes a second sealing ring fixedly connected to the inner wall of the connecting plate, corresponding to the heat-conducting inner housing.

[0013] The aforementioned sealed water-cooled housing for motors includes: a first sealing ring on the surface of the outer housing, and an internal thread corresponding to the first sealing ring on the inner wall of the connecting plate.

[0014] The aforementioned sealed water-cooled housing for motors, wherein: the two ends of the limiting plate are fixedly connected with external threads corresponding to the connecting plate, and the maximum outer diameter of the connecting plate is the same as the maximum outer diameter of the limiting plate.

[0015] This utility model has the following beneficial effects:

[0016] A water-cooling mechanism is installed. External coolant enters the connecting plate through the inlet and outlet pipes and is sprayed out from the inlet and outlet holes. Under the guidance of the water guide plate and the limiting plate, it flows along the liquid guide channel. When the coolant flows, it carries away the heat absorbed by the heat-conducting inner shell. The coolant flows out from the inlet and outlet holes at the other end and is discharged through another inlet and outlet pipe, realizing the circulation of coolant. The circulation of coolant dissipates heat from the motor. The coolant is in direct contact with the heat-conducting inner shell, which improves the heat dissipation effect. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a sealed water-cooled housing for an electric motor provided in an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the water cooling mechanism for a sealed water-cooled housing for an electric motor, provided as an embodiment of this utility model;

[0019] Figure 3 A schematic diagram of the structure of the outer shell and the limiting plate in a sealed water-cooled housing for an electric motor provided in this embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the structure of a water guide plate and a connecting plate in a sealed water-cooled housing for an electric motor, provided in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting plate and liquid inlet / outlet holes in a sealed water-cooled housing for an electric motor, provided as an embodiment of the present utility model.

[0022] In the attached image:

[0023] 1. Heat-conducting inner shell; 2. Outer shell; 3. Limiting ring; 4. Connecting plate; 5. Water cooling mechanism; 501. Inlet and outlet pipes; 502. Inlet and outlet holes; 503. Water guide plate; 504. Limiting plate; 505. Limiting groove; 506. First sealing ring; 507. Liquid guiding channel; 508. Second sealing ring; 509. External thread. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example

[0029] This embodiment provides a sealed water-cooled housing for an electric motor, such as... Figures 1-5 As shown, it includes: a motor housing, which includes a heat-conducting inner housing 1 and an outer housing 2. Both ends of the heat-conducting inner housing 1 and the outer housing 2 are open. Both ends of the outer housing 2 are threaded with connecting plates 4. A limit ring 3 is fixedly connected to the center of the surface of the outer housing 2. A water-cooling mechanism 5 is disposed between the heat-conducting inner housing 1 and the outer housing 2 for dissipating the heat absorbed by the heat-conducting inner housing 1.

[0030] A sealed water-cooled housing for an electric motor using the above-mentioned technical solution is equipped with a water-cooling mechanism 5. External coolant enters the connecting plate 4 through the inlet / outlet pipe 501 and is sprayed out from the inlet / outlet hole 502. Under the guidance of the guide plate 503 and the limiting plate 504, it flows along the guide channel 507. When the coolant flows, it carries away the heat absorbed by the heat-conducting inner housing 1. The coolant flows out from the inlet / outlet hole 502 at the other end and is discharged through another inlet / outlet pipe 501, realizing the circulation of the coolant. The circulation of the coolant dissipates heat from the motor. The coolant is in direct contact with the heat-conducting inner housing 1, which improves the heat dissipation effect.

[0031] To increase the heat exchange area between the coolant and the motor, and thus improve heat dissipation, the water-cooling mechanism 5 includes a water guide plate 503 fixedly connected to the outer surface of the heat-conducting inner housing 1. A liquid guiding channel 507 is provided between two adjacent water guide plates 503. An inlet / outlet hole 502 is provided on the surface of the connecting plate 4, and an inlet / outlet pipe 501 connected to the inlet / outlet hole 502 is fixedly installed on one side of the connecting plate 4. Motor heat is conducted through the heat-conducting inner housing 1 to the outer surface of the heat-conducting inner housing 1 and the water guide plate 503. The water guide plate 503 increases the contact area with the coolant, improving the coolant's heat absorption effect and thus enhancing the motor's heat dissipation.

[0032] To further improve the heat dissipation of the motor, the liquid guiding channel 507 is correspondingly set with the liquid inlet and outlet holes 502, and the heat-conducting inner shell 1 is made of copper. The copper shell of the heat-conducting inner shell 1 improves heat transfer efficiency, transferring more heat to the coolant, and dissipating heat from the motor through the flow of the coolant.

[0033] To facilitate cleaning and maintenance of the cavity between the inner heat-conducting housing 1 and the outer housing 2, a limiting plate 504 is fixedly connected to the top of the water guide plate 503, and a limiting groove 505 corresponding to the water guide plate 503 and the limiting plate 504 is provided on the inner wall of the outer housing 2. The outer housing 2 is installed and fixed by the cooperation of the water guide plate 503, the limiting plate 504, and the limiting groove 505. The gap between the inner heat-conducting housing 1 and the outer housing 2 is maintained and cleaned by installing and removing the outer housing 2.

[0034] To improve the sealing between the heat-conducting inner shell 1 and the outer shell 2, the connecting plate 4 is rotated to form a threaded connection between the connecting plate 4 and the outer shell 2. The cooperation between the connecting plate 4 and the second sealing ring 508 ensures a seal between the heat-conducting inner shell 1 and the outer shell 2. A second sealing ring 508 corresponding to the heat-conducting inner shell 1 is fixedly connected to the inner wall of the connecting plate 4.

[0035] For ease of maintenance, a first sealing ring 506 is provided on the surface of the outer casing 2, and an internal thread corresponding to the first sealing ring 506 is provided on the inner wall of the connecting plate 4. The connecting plate 4 can be disassembled by the interaction of the internal and external threads, and the heat-conducting inner casing 1 and the outer casing 2 can be cleaned and maintained by disassembling the connecting plate 4.

[0036] To ensure that the whole is flush, the two ends of the limiting ring 3 are fixedly connected with external threads 509 corresponding to the connecting plate 4, and the maximum outer diameter of the connecting plate 4 is the same as the maximum outer diameter of the limiting ring 3.

[0037] In summary, the sealed water-cooled housing for motor provided in this embodiment has the following advantages: A water-cooling mechanism 5 is provided, where external coolant enters the connecting plate 4 through the inlet / outlet pipe 501 and is sprayed out from the inlet / outlet hole 502. Under the guidance of the guide plate 503 and the limiting plate 504, it flows along the guide channel 507. During the flow, the coolant carries away the heat absorbed by the heat-conducting inner housing 1. The coolant flows out from the inlet / outlet hole 502 at the other end and is discharged through another inlet / outlet pipe 501, achieving coolant circulation. This circulation of coolant dissipates heat from the motor, and the coolant is in direct contact with the heat-conducting inner housing 1, improving the heat dissipation effect.

[0038] In use, connect the two inlet and outlet pipes 501 to the coolant circulation tank, allowing coolant to flow in from one inlet / outlet pipe 501 and out from the other. The heat generated by the motor is transferred to the outer surface of the heat-conducting inner housing 1, where it exchanges heat with the coolant flowing in the liquid channel 507. The heat is carried away by the coolant, thus dissipating heat from the motor. After prolonged use, unscrew the connecting plate 4 to separate it from the outer housing 2, allowing for cleaning of the gap between the heat-conducting inner housing 1 and the outer housing 2. This increases the coolant flow rate, improves heat dissipation, and prevents blockage by impurities.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealed water-cooled housing for an electric motor, characterized in that, include: The motor housing includes a heat-conducting inner housing (1) and an outer housing (2). Both ends of the heat-conducting inner housing (1) and the outer housing (2) are open. Both ends of the outer housing (2) are threaded with connecting plates (4). A limit ring (3) is fixedly connected to the center of the surface of the outer housing (2). A water-cooling mechanism (5) is disposed between the heat-conducting inner shell (1) and the outer shell (2) to dissipate heat absorbed by the heat-conducting inner shell (1); the water-cooling mechanism (5) includes a water guide plate (503) fixedly connected to the outer surface of the heat-conducting inner shell (1), a liquid guide channel (507) is provided between two adjacent water guide plates (503), an inlet and outlet hole (502) is provided on the surface of the connecting plate (4), an inlet and outlet pipe (501) connected to the inlet and outlet hole (502) is fixedly installed on one side of the connecting plate (4), the liquid guide channel (507) is correspondingly provided with the inlet and outlet hole (502), the heat-conducting inner shell (1) is made of copper, the A limiting plate (504) is fixedly connected to the top of the water guide plate (503). The inner wall of the outer shell (2) is provided with a limiting groove (505) corresponding to the water guide plate (503) and the limiting plate (504). The inner wall of the connecting plate (4) is fixedly connected with a second sealing ring (508) corresponding to the heat-conducting inner shell (1). The surface of the outer shell (2) is provided with a first sealing ring (506). The inner wall of the connecting plate (4) is provided with an internal thread corresponding to the first sealing ring (506). The two ends of the limiting ring (3) are fixedly connected with external threads (509) corresponding to the connecting plate (4). The maximum outer diameter of the connecting plate (4) is the same as the maximum outer diameter of the limiting ring (3).

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