Water-cooled motor shell and water-cooled motor

Abstract

The utility model relates to motor technical field, specifically disclose water -cooled motor shell and water -cooled motor, this water -cooled motor shell package casing main part and drainage pipe group, casing main part is sequentially spaced apart with a plurality of annular flow passages along the first direction, a plurality of annular flow passages are sequentially communicated and form cooling flow passage, the drainage pipe group includes drainage pipe and plugging piece, and the drainage pipe is set in the bottom of casing main part, and the drainage pipe is communicated with the bottom of a plurality of annular flow passages simultaneously, and the plugging piece selectively opens or closes the drainage pipe. When water -cooled motor stops, and the outside environment temperature is lower, open the drainage pipe, because the drainage pipe is communicated with the bottom of a plurality of annular flow passages simultaneously, so the cooling water in a plurality of annular flow passages flows out from the drainage pipe under the action of gravity, and then empties the cooling flow passage, and the water -cooled motor shell does not need personnel to dismantle the whole water -cooled motor from the equipment, does not need to stand vertically to utilize the gravity effect to realize drainage. Not only simple operation, low labor intensity, but also high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a water-cooled motor housing and a water-cooled motor. Background Technology

[0002] With the increasing demands of modern industry on motor performance, water-cooled motors have been widely used and promoted in many industrial fields such as servo control, plastic extrusion, and air compression due to their excellent heat dissipation performance, compact structural design, and high power density.

[0003] However, water-cooled motors also face some technical challenges in practical applications. One prominent issue is that in cold conditions where the ambient temperature is below freezing, the cooling water in the water channels is prone to freezing and expanding after the motor stops, which can lead to cracks and damage to the casing, posing a serious threat to the safe operation of the equipment. To avoid this problem, it is usually necessary to completely drain the cooling water from the water channels in low-temperature environments.

[0004] In existing technologies, to ensure complete drainage of cooling water from the annular water channel, operators often need to disassemble the entire motor from the equipment and stand it upright to utilize gravity for drainage. This drainage method is not only complex and labor-intensive but also inefficient, severely impacting the ease of equipment maintenance and user experience.

[0005] Therefore, a water-cooled motor housing is urgently needed to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a water-cooled motor housing and a water-cooled motor to solve the problems of complex operation, high labor intensity, and low efficiency in draining water from the cooling channel of a water-cooled motor, which seriously affect the convenience of equipment maintenance and user experience.

[0007] On one hand, this utility model provides a water-cooled motor housing, which includes:

[0008] The shell body has a plurality of annular flow channels arranged at intervals along a first direction, and the plurality of annular flow channels are connected in sequence to form a cooling flow channel;

[0009] A drain pipe assembly includes a drain pipe and a sealing element. The drain pipe is located at the bottom of the shell body and is simultaneously connected to the bottom of multiple annular flow channels. The sealing element selectively opens or closes the drain pipe.

[0010] As a preferred technical solution for the water-cooled motor housing, a drainage hole is provided at the bottom of the housing body, and the drainage hole is used to connect the bottom of the multiple annular flow channels to the drainage pipe.

[0011] As a preferred technical solution for the water-cooled motor housing, multiple drainage holes are provided, and the multiple drainage holes are arranged sequentially at intervals along the first direction.

[0012] As a preferred technical solution for the water-cooled motor housing, the drain pipe includes:

[0013] Multiple drainage protrusions are provided on the bottom of the shell body and correspond one-to-one with multiple drainage holes. Each drainage protrusion is provided with a through hole, which communicates with the corresponding drainage hole.

[0014] Multiple branch pipes, wherein the multiple branch pipes connect the multiple through holes in series.

[0015] As a preferred technical solution for the water-cooled motor housing, a plurality of drainage protrusions are arranged at intervals along the first direction, a branch pipe is provided between two adjacent drainage protrusions, and the through hole is arranged along the first direction.

[0016] The sealing component includes two plugs, which are detachably inserted into the two through holes located at both ends and not connected to the branch pipe.

[0017] As a preferred technical solution for the water-cooled motor housing, the drain pipe further includes multiple water pipe joints. Each branch pipe has two water pipe joints fitted at both ends. The water pipe joints are inserted into the through holes corresponding to the branch pipes and are detachably connected to the drain boss.

[0018] As a preferred technical solution for the water-cooled motor housing, the periphery of the housing body is further provided with multiple water passages, each pair of adjacent annular channels corresponds to one water passage, and the two ends of the water passage are respectively connected to the two adjacent annular channels.

[0019] As a preferred technical solution for the water-cooled motor housing, one of the two adjacent water passages is located at the bottom of the housing body and the other is located at the top of the housing body.

[0020] As a preferred technical solution for water-cooled motor housings, the annular flow channels are provided in an even number;

[0021] The bottom of the shell body is provided with a plurality of drainage holes, each of which corresponds to a plurality of water passages located at the bottom of the shell body and is connected to a drainage pipe.

[0022] On the other hand, this utility model provides a water-cooled motor, including a rotor, a stator and a water-cooled motor housing as described in any of the above embodiments. The housing body is provided with a mounting hole along the first direction. The stator passes through the mounting hole and is fixedly connected to the housing body. The rotor passes through the stator and rotates with the stator.

[0023] The water-cooled motor housing and water-cooled motor provided by this utility model have at least the following beneficial effects:

[0024] The water-cooled motor housing includes a main body and a drain pipe assembly. The main body has multiple annular channels spaced at intervals along a first direction, which are interconnected to form a cooling channel. The drain pipe assembly includes a drain pipe and a sealing element. The drain pipe is located at the bottom of the main body and connects to the bottom of the multiple annular channels. The sealing element selectively opens or closes the drain pipe. When the water-cooled motor with this housing is operating normally, the sealing element blocks the drain pipe, allowing cooling water to circulate within the cooling channel formed by the annular channels, thus carrying away the heat generated inside the motor. When the water-cooled motor stops and the ambient temperature is low, the drain pipe is opened. Because the drain pipe connects to the bottom of the multiple annular channels, the cooling water in the channels flows out under gravity, emptying the cooling channel and preventing the cooling water from freezing and expanding, which could cause the housing to crack and be damaged, thus avoiding serious hazards to the safe operation of the equipment. This water-cooled motor housing eliminates the need for operators to disassemble the entire water-cooled motor from the equipment, and avoids the need to stand it upright to utilize gravity for drainage. This drainage method is not only simple to operate and requires less labor, but also highly efficient, improving equipment maintenance convenience and user experience. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the water-cooled motor housing in an embodiment of the present invention;

[0026] Figure 2 for Figure 1 Sectional view at point AA;

[0027] Figure 3 This is a schematic diagram of the cooling channel structure in an embodiment of the present invention. Figure 1 ;

[0028] Figure 4 This is a schematic diagram of the cooling channel structure in an embodiment of the present invention. Figure 2 .

[0029] In the picture:

[0030] X, first direction;

[0031] 1. Shell body; 11. Annular flow channel; 12. Drain hole; 13. Water passage; 14. Mounting hole; 15. Water inlet; 16. Water outlet;

[0032] 211. Drainage boss; 2111. Through hole; 212. Branch pipe; 213. Water pipe joint; 22. Sealing component. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of 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.

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] like Figures 1 to 4As shown, this embodiment provides a water-cooled motor housing, which includes a housing body 1 and a drain pipe assembly. The housing body 1 has multiple annular flow channels 11 arranged at intervals along a first direction X, and the multiple annular flow channels 11 are connected in sequence to form a cooling flow channel. The drain pipe assembly includes a drain pipe and a sealing member 22. The drain pipe is located at the bottom of the housing body 1 and is simultaneously connected to the bottom of the multiple annular flow channels 11. The sealing member 22 selectively opens or closes the drain pipe. When the water-cooled motor with this housing is working normally, the sealing member 22 seals the drain pipe, and the cooling water can circulate within the cooling flow channel formed by the annular flow channels 11, thereby carrying away the heat generated inside the motor. When the water-cooled motor stops and the ambient temperature is low, opening the drain pipe allows the cooling water within multiple annular channels 11 to flow out under gravity, emptying the cooling channels and preventing the water from freezing and expanding, which could cause the casing to crack and be damaged, thus avoiding serious safety hazards to the equipment. This method eliminates the need for operators to disassemble the entire water-cooled motor from the equipment or stand it upright to drain water using gravity. This drainage method is not only simple to operate and requires low labor intensity, but also highly efficient, improving equipment maintenance convenience and user experience.

[0038] Optionally, the cooling channel is provided with an inlet 15 and an outlet 16. Cooling water flows into the cooling channel from the inlet 15 and flows out of the cooling channel from the outlet 16, thereby carrying away the heat generated by the cooling motor.

[0039] Optionally, the inlet 15 and outlet 16 are located at opposite ends of the cooling channel, allowing cooling water to flow in from one end and out from the other. In other embodiments, one inlet 15 and two outlets 16 can be provided, with the inlet 15 located in the middle of the cooling channel and connected to the middle of the cooling channel, and the two outlets 16 located at opposite ends of the cooling channel and connected to opposite ends of the cooling channel, allowing cooling water to enter from the middle of the cooling channel and exit from opposite ends of the cooling channel.

[0040] Optionally, both the water inlet 15 and the water outlet 16 are located at the top of the housing body 1. In this embodiment, this arrangement ensures that the cooling channel can be filled with cooling water, further improving the cooling efficiency of the water-cooled motor.

[0041] Optionally, a drain hole 12 is provided at the bottom of the shell body 1, which is used to connect the bottom of the plurality of annular flow channels 11 to a drain pipe. In this embodiment, the cooling water in the plurality of annular flow channels 11 is led into the drain pipe through the drain hole 12.

[0042] For example, multiple drain holes 12 are provided, and the multiple drain holes 12 are arranged sequentially at intervals along the first direction X. In this embodiment, the drain holes 12 can be connected to one, two, or three of the multiple annular flow channels 11 simultaneously. In other embodiments, one drain hole 12 can be connected to all annular flow channels 11 simultaneously. Providing multiple drain holes 12 can improve the drainage efficiency of the cooling flow channels.

[0043] Optionally, the drain pipe includes multiple drain protrusions 211 and multiple branch pipes 212. The multiple drain protrusions 211 are protruding from the bottom of the shell body 1 and correspond one-to-one with multiple drain holes 12. Each drain protrusion 211 is provided with a through hole 2111, which communicates with the corresponding drain hole 12. The multiple branch pipes 212 connect the multiple through holes 2111 in series. In this embodiment, the drain protrusions 211 cover the corresponding drain holes 12, and each drain protrusion 211 is provided with a through hole 2111. The drain holes 12 pass through the peripheral wall of the through holes 2111 and communicate with the through holes 2111. The multiple branch pipes 212 connect the multiple through holes 2111 in series to form a complete drain pipe.

[0044] Optionally, multiple drainage protrusions 211 are arranged sequentially at intervals along the first direction X, and a branch pipe 212 is provided between two adjacent drainage protrusions 211. The sealing member 22 includes two plugs, which are detachably inserted into the two through holes 2111 located at both ends and not connected to the branch pipe 212. In this embodiment, a branch pipe 212 is provided between two adjacent drainage protrusions 211, and the branch pipe 212 connects the through holes 2111 of the two adjacent drainage protrusions 211, thereby forming a drainage pipe extending along the first direction X. The through holes 2111 of the two drainage protrusions 211 located at both ends are not connected to the branch pipe 212, and thus serve as drainage outlets. When drainage is not required, the two plugs are respectively inserted into the drainage outlets on the drainage protrusions 211 at both ends to seal both ends of the drainage pipe. When drainage is required, pull out one or both plugs from the drain outlets on the drain bosses 211 at both ends. The cooling water in the cooling channel enters the drain pipe through the drain hole 12 and is finally discharged from the drain outlets at one or both ends of the drain pipe.

[0045] Optionally, the drainage boss 211 is threadedly connected to the plug; in other embodiments, the drainage boss 211 and the plug can be snapped together.

[0046] Optionally, the drain pipe also includes multiple water pipe joints 213. Each branch pipe 212 has two water pipe joints 213 fitted onto both ends. The water pipe joints 213 are inserted into the through holes 2111 corresponding to the branch pipe 212 and are detachably connected to the drainage bosses 211. In this embodiment, the end of the branch pipe 212 is first interference-fitted onto one end of the water pipe joint 213, and then the other end of the water pipe joint 213 is inserted into the through hole 2111 corresponding to the branch pipe 212 and screwed or snapped onto the corresponding drainage bosses 211, so that both ends of the branch pipe 212 are connected to the through holes 2111 on the two corresponding drainage bosses 211.

[0047] Optionally, the branch pipe 212 is a flexible hose. In this embodiment, this arrangement facilitates the assembly of the branch pipe 212 with the water pipe connector 213.

[0048] Optionally, a plurality of water passages 13 are also provided within the peripheral wall of the shell body 1, with each pair of adjacent annular flow channels 11 corresponding to one water passage 13, and the two ends of the water passage 13 being connected to the two adjacent annular flow channels 11 respectively. In this embodiment, this arrangement allows the water passages 13 to sequentially connect multiple independent annular flow channels 11.

[0049] Optionally, of the two adjacent water passages 13, one is located at the bottom of the shell body 1 and the other is located at the top of the shell body 1. In this embodiment, this arrangement can extend the flow path of the cooling water, thereby improving the cooling effect on the water-cooled motor.

[0050] Optionally, an even number of annular flow channels 11 are provided; a plurality of drain holes 12 are provided at the bottom of the shell body 1, and the plurality of drain holes 12 are connected one-to-one with a plurality of water passages 13 located at the bottom of the shell body 1, and the plurality of drain holes 12 are connected to drain pipes. In this embodiment, this arrangement allows one drain hole 12 to connect to two adjacent annular flow channels 11, thereby reducing the number of drain holes 12 provided. In other embodiments, the plurality of drain holes 12 may also be connected one-to-one with a plurality of annular flow channels 11.

[0051] Optionally, the cross-sectional area of ​​the drain hole 12 is s1, and the cross-sectional area of ​​the annular flow channel 11 is s2, where s1 = a * s2, and 0.1 ≤ a ≤ 0.5. In this embodiment, this setting can increase the water resistance difference between the annular flow channel 11 and the drain hole 12, thereby reducing the influence of the drain hole 12 on the flow of cooling water in the cooling flow channel.

[0052] Optionally, the cross-sectional area of ​​the water passage 13 is s3, and the cross-sectional area of ​​the annular flow channel 11 is s2, where s3 = b * s2 and 0.7 ≤ b ≤ 1.3. In this embodiment, this arrangement can reduce the water resistance difference between the annular flow channel 11 and the drain hole 12, thereby enabling the cooling water to flow smoothly within the cooling flow channel.

[0053] This embodiment also provides a water-cooled motor, including a rotor, a stator and the water-cooled motor housing in the above scheme. The housing body 1 is provided with a mounting hole 14 along the first direction X. The stator passes through the mounting hole 14 and is fixedly connected to the housing body 1. The rotor passes through the stator and rotates with the stator.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A water-cooled motor housing, characterized in that, include: The shell body (1) is provided with a plurality of annular flow channels (11) arranged at intervals along a first direction (X), and the plurality of annular flow channels (11) are connected in sequence to form a cooling flow channel; The drain pipe assembly includes a drain pipe and a sealing element (22). The drain pipe is located at the bottom of the shell body (1) and is simultaneously connected to the bottom of multiple annular channels (11). The sealing element (22) selectively opens or closes the drain pipe.

2. The water-cooled motor housing according to claim 1, characterized in that, The bottom of the shell body (1) is provided with a drain hole (12), which is used to connect the bottom of the plurality of annular channels (11) to the drain pipe.

3. The water-cooled motor housing according to claim 2, characterized in that, The drainage holes (12) are provided in multiple ways, and the multiple drainage holes (12) are arranged at intervals along the first direction (X).

4. The water-cooled motor housing according to claim 3, characterized in that, The drain pipe includes: Multiple drainage protrusions (211) are provided on the bottom of the shell body (1) and correspond one-to-one with multiple drainage holes (12). Each drainage protrusion (211) is provided with a through hole (2111) and the through hole (2111) is connected to the corresponding drainage hole (12). Multiple branch pipes (212) are connected in series with multiple through holes (2111).

5. The water-cooled motor housing according to claim 4, characterized in that, Multiple drainage protrusions (211) are arranged at intervals along the first direction (X), and a branch pipe (212) is arranged between two adjacent drainage protrusions (211). The through hole (2111) is arranged along the first direction (X). The sealing component (22) includes two plugs, which are detachably inserted into one end of the two through holes (2111) located at both ends and not connected to the branch pipe (212).

6. The water-cooled motor housing according to claim 4, characterized in that, The drain pipe also includes multiple water pipe joints (213). Each branch pipe (212) has two water pipe joints (213) fitted at both ends. The water pipe joints (213) are inserted into the through hole (2111) corresponding to the branch pipe (212) and are detachably connected to the drain boss (211).

7. The water-cooled motor housing according to any one of claims 1-6, characterized in that, The shell body (1) is provided with a plurality of water passages (13) in the periphery. Each pair of adjacent annular flow channels (11) corresponds to one water passage (13), and the two ends of the water passage (13) are respectively connected to the two adjacent annular flow channels (11).

8. The water-cooled motor housing according to claim 7, characterized in that, Of the two adjacent water passages (13), one is located at the bottom of the shell body (1) and the other is located at the top of the shell body (1).

9. The water-cooled motor housing according to claim 8, characterized in that, The annular flow channel (11) is provided with an even number; The bottom of the shell body (1) is provided with a plurality of drainage holes (12), and the plurality of drainage holes (12) are connected one-to-one with the plurality of water passages (13) located at the bottom of the shell body (1), and the plurality of drainage holes (12) are connected with the drainage pipe.

10. A water-cooled motor, characterized in that, The device includes a rotor, a stator, and a water-cooled motor housing as described in any one of claims 1-9. The housing body (1) is provided with a mounting hole (14) along the first direction (X). The stator passes through the mounting hole (14) and is fixedly connected to the housing body (1). The rotor passes through the stator and rotates with the stator.

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