Cooling structure of hydroelectric generation permanent magnet motor

Abstract

The utility model provides a cooling structure of a hydroelectric generation permanent magnet motor, and relates to the technical field of motor heat dissipation. The cooling structure of the hydroelectric generation permanent magnet motor comprises at least two heat dissipation mechanisms, the two heat dissipation mechanisms are arranged on the peripheral side of a motor body in a clamped mode and abut against the motor body, each heat dissipation mechanism comprises a half sleeve, a liquid inlet valve seat and a liquid outlet valve seat, and a refrigerant channel used for introducing a refrigerant is formed in each half sleeve; the liquid inlet valve seat and the liquid outlet valve seat are communicated with the two ends of the refrigerant channel respectively, the semi-sleeve can be arranged on the peripheral side of the motor body in a sleeving mode through the arrangement of the semi-sleeve with the refrigerant channel, installation is convenient, and heat dissipation is conducted through the phase change of a refrigerant by introducing the refrigerant into the refrigerant channel. Therefore, the heat transmitted to the half sleeve by the motor body is timely transmitted to the refrigerant, and the heat is timely dissipated through the circulation of the refrigerant, so that the heat dissipation efficiency can be improved, and the working efficiency of the motor is further improved.

Description

Technical Field

[0001] This application relates to motor heat dissipation technology, and more particularly to a cooling structure for a hydroelectric permanent magnet motor. Background Technology

[0002] Hydropower generation is the process of utilizing the potential energy of water bodies, converting it into the mechanical energy of a water turbine through a series of engineering measures, and then using the water turbine to drive a generator to convert it into electrical energy.

[0003] Currently, generators used in hydropower include permanent magnet motors. A permanent magnet motor is a type of motor that uses permanent magnets to generate a magnetic field, directly converting mechanical energy into electrical energy. However, due to the resistance of its copper wire windings, it also consumes some electrical energy. The remaining electrical energy can be output to an external load. While consuming electrical energy, permanent magnet motors also generate heat. In related technologies, fins are typically installed on the outer surface of the permanent magnet motor to dissipate heat.

[0004] However, in some applications, the heat dissipation effect of fins is not good, which affects the normal operation of permanent magnet motors. Utility Model Content

[0005] In view of this, this application provides a cooling structure for a hydroelectric permanent magnet motor, which aims to improve the heat dissipation effect of the permanent magnet motor and thus improve its working efficiency.

[0006] To achieve the above objectives, this application provides a cooling structure for a hydroelectric permanent magnet motor, which adopts the following technical solution:

[0007] This application provides a cooling structure for a hydroelectric permanent magnet motor, for the motor body, including at least two heat dissipation mechanisms;

[0008] The two heat dissipation mechanisms are sandwiched on the outer periphery of the motor body, and part of their structure abuts against the motor body;

[0009] The heat dissipation mechanism includes a half sleeve, an inlet valve seat, and an outlet valve seat;

[0010] The half-sleeve has a refrigerant channel for introducing refrigerant.

[0011] The inlet valve seat and the outlet valve seat are respectively connected to both ends of the refrigerant channel, and the inlet valve seat and the outlet valve seat are used to connect to the external refrigerant circulation equipment.

[0012] In one possible implementation, the cooling structure of the hydroelectric permanent magnet motor provided in this application includes a refrigerant channel comprising an inlet channel and an outlet channel, wherein the inlet valve seat is connected to the inlet end of the inlet channel, the outlet end of the inlet channel is connected to the inlet end of the outlet channel, and the outlet valve seat is connected to the outlet end of the outlet channel.

[0013] The inlet end of the liquid inlet channel and the outlet end of the liquid outlet channel are located at the same end of the motor body.

[0014] In one possible implementation, the cooling structure of the hydroelectric permanent magnet motor provided in this application has the liquid inlet channel located on the side of the half-sleeve close to the motor body, and the liquid inlet channel located between the liquid outlet channel and the motor body.

[0015] In one possible implementation, the cooling structure of the hydroelectric permanent magnet motor provided in this application includes multiple sub-channels in both the liquid inlet channel and the liquid outlet channel, and the sub-channels are arranged at intervals along the circumference of the half-sleeve.

[0016] In one possible implementation, the cooling structure of the hydroelectric permanent magnet motor provided in this application has a buffer cavity inside the half-sleeve, and the buffer cavity is connected to the liquid outlet end of each of the sub-channels of the liquid inlet channel and the liquid inlet end of each of the sub-channels of the liquid outlet channel.

[0017] In one possible implementation, the cooling structure of the hydroelectric permanent magnet motor provided in this application further includes a first pressure equalization chamber and a second pressure equalization chamber in the half sleeve. One of the first pressure equalization chamber and the second pressure equalization chamber is connected to the inlet end of each of the sub-channels of the liquid inlet channel and is also connected to the liquid inlet valve seat.

[0018] The other of the first equalizing chamber and the second equalizing chamber is connected to the liquid outlet end of each of the sub-channels of the liquid outlet channel and is also connected to the liquid outlet valve seat.

[0019] In one possible implementation, the cooling structure of the hydroelectric permanent magnet motor provided in this application also includes a connecting component;

[0020] The connecting component is configured to connect the two heat dissipation mechanisms so that the heat dissipation mechanisms clamp the motor body.

[0021] In one possible implementation, the cooling structure of the hydroelectric permanent magnet motor provided in this application includes a connection assembly comprising multiple connecting columns and multiple elastic ropes.

[0022] The connecting post and the elastic rope correspond one-to-one. The connecting post is connected to one end of the half sleeve along the circumference, and the elastic rope is connected to the other end of the half sleeve along the circumference. The other end of the elastic rope is sleeved on the corresponding connecting post.

[0023] In one possible implementation, the cooling structure of the hydroelectric permanent magnet motor provided in this application has a heat-conducting layer coated between the half-sleeve and the motor body.

[0024] In one possible implementation, the cooling structure of the hydroelectric permanent magnet motor provided in this application has fins evenly distributed on the outer surface of the semi-sleeve.

[0025] The cooling structure of the hydroelectric permanent magnet motor provided in this application includes at least two heat dissipation mechanisms. These mechanisms are sandwiched around the outer periphery of the motor body, with portions of their structure abutting against the motor body. Each heat dissipation mechanism includes a half-sleeve, an inlet valve seat, and an outlet valve seat. The half-sleeve contains a refrigerant channel for introducing refrigerant. The inlet and outlet valve seats are respectively connected to both ends of the refrigerant channel, and are used to connect to an external refrigerant circulation device. By providing a half-sleeve with a refrigerant channel, the half-sleeve can be fitted around the outer periphery of the motor body, facilitating installation. Refrigerant is introduced into the refrigerant channel through the inlet and outlet valve seats, utilizing the phase change of the refrigerant for heat dissipation. This allows the heat transferred from the motor body to the half-sleeve to the refrigerant in a timely manner, and the heat is dissipated promptly through refrigerant circulation. Compared to the finned heat dissipation used in related technologies, this method improves heat dissipation efficiency, thereby increasing the motor's operating efficiency.

[0026] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the technical solutions provided by this application, other technical features contained in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0027] The specific embodiments of this application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this application, and this application is not limited to the specific embodiments described below.

[0028] Figure 1 A schematic diagram of the cooling structure and motor body of a hydroelectric permanent magnet motor provided in an embodiment of this application;

[0029] Figure 2 An exploded structural diagram of the cooling structure of a hydroelectric permanent magnet motor provided in an embodiment of this application;

[0030] Figure 3 for Figure 2 A partial internal structure diagram of the middle half-sleeve;

[0031] Figure 4 for Figure 3 A schematic diagram of the internal structure of the other end of the middle sleeve.

[0032] Explanation of reference numerals in the attached figures:

[0033] 10. Motor body; 20. Sub-channel; 100. Heat dissipation mechanism; 200. Half sleeve; 201. Refrigerant channel; 2011. Liquid inlet channel; 2012. Liquid outlet channel; 202. Buffer chamber; 203. First pressure equalization chamber; 204. Second pressure equalization chamber;

[0034] 300, Inlet valve seat; 400, Outlet valve seat; 500, Connecting assembly; 510, Connecting column; 520, Elastic rope; 600, Fin.

[0035] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0037] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In the description of the embodiments of this application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 application 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, they should not be construed as limitations on this application.

[0039] In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise specified precisely.

[0040] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0041] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0042] Hydropower generation is the process of utilizing the potential energy of water bodies, converting it into the mechanical energy of a water turbine through a series of engineering measures, and then using the water turbine to drive a generator to convert it into electrical energy.

[0043] Currently, generators used in hydropower include permanent magnet motors. A permanent magnet motor is a type of motor that uses permanent magnets to generate a magnetic field. It directly converts mechanical energy into electrical energy. However, because its copper wire windings have a certain resistance, it also consumes some electrical energy. The remaining electrical energy can be output to external loads.

[0044] Permanent magnet motors in related technologies consume some electrical energy and generate heat. Typically, fins are installed on the outer surface of the permanent magnet motor to dissipate heat. In practice, the fins absorb heat from the motor's outer surface and dissipate it through convection with the air, or a fan is used to accelerate the convection heat exchange with the air.

[0045] However, when a permanent magnet motor is installed in a relatively enclosed space, after the motor has been working for a period of time, the overall temperature of the air in the space rises, and the heat dissipation effect of heat exchange between the fins and the air is poor, which may even affect the normal operation of the permanent magnet motor.

[0046] Based on the above-mentioned technical problems, this application provides a cooling structure for a hydroelectric permanent magnet motor. In this technical solution, the cooling structure for the hydroelectric permanent magnet motor provided by this application includes: at least two heat dissipation mechanisms. The two heat dissipation mechanisms are sandwiched on the outer periphery of the motor body, and part of the structure abuts against the motor body. The heat dissipation mechanism includes a half sleeve, an inlet valve seat, and an outlet valve seat. The half sleeve has a refrigerant channel for introducing refrigerant. The inlet valve seat and the outlet valve seat are respectively connected to the two ends of the refrigerant channel and are used to connect to an external refrigerant circulation device.

[0047] By incorporating a semi-sleeve with a refrigerant channel, the semi-sleeve can be fitted onto the outer periphery of the motor body for easy installation. Refrigerant is introduced into the refrigerant channel through the inlet and outlet valve seats, utilizing the phase change of the refrigerant for heat dissipation. This ensures that the heat transferred from the motor body to the semi-sleeve is promptly transferred to the refrigerant, and the heat is dissipated in a timely manner through refrigerant circulation. The refrigerant circulation is less affected by ambient temperature, which improves heat dissipation efficiency compared to finned heat dissipation in related technologies, thereby increasing the motor's operating efficiency.

[0048] It should be noted that, Figures 1 to 4 The diagram shows a simplified schematic of the components in the cooling structure of a hydroelectric permanent magnet motor. The specific structures of the remaining components in the cooling structure of the hydroelectric permanent magnet motor are not limited to... Figures 1 to 4 of examples.

[0049] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0050] Reference Figure 1 and Figure 2 As shown in the embodiment of this application, a cooling structure for a hydroelectric permanent magnet motor is provided for the motor body 10. It should be noted that the motor body 10 is related to the technology in this field and can be a permanent magnet motor. This application does not limit the specific structure of the motor body 10.

[0051] It includes at least two heat dissipation mechanisms 100. The number of heat dissipation mechanisms 100 can also be three, four or five; in this embodiment, two heat dissipation mechanisms 100 are used.

[0052] Two heat dissipation mechanisms 100 are sandwiched on the outer periphery of the motor body 10, and part of their structure abuts against the motor body 10. It is understood that the contact between part of the heat dissipation mechanism 100 and the motor body 10 allows the heat generated by the motor body 10 to be transferred to the heat dissipation mechanism 100 for heat dissipation. In order to ensure heat dissipation efficiency, as much of the structure of the heat dissipation mechanism 100 as possible can abut against the motor body 10. For example, the surface of the heat dissipation mechanism 100 facing the motor body 10 can be adapted to the motor body 10.

[0053] The heat dissipation mechanism 100 includes a half sleeve 200, an inlet valve seat 300, and an outlet valve seat 400.

[0054] The half sleeve 200 has a refrigerant channel 201 inside, which is used to introduce refrigerant.

[0055] The inlet valve seat 300 and the outlet valve seat 400 are respectively connected to both ends of the refrigerant passage 201. The inlet valve seat 300 and the outlet valve seat 400 are used to connect to the external refrigerant circulation equipment.

[0056] In the above embodiments, the external refrigerant circulation device can be a pressure pump, which is used to pump in refrigerant. The refrigerant can be cooling oil, cooling water, or a three-phase mixture of refrigerant. The refrigerant is existing technology in the relevant field. The embodiments of this application do not limit the specific structure and form of the refrigerant.

[0057] The external refrigerant circulation device injects refrigerant into the refrigerant channel 201 through the inlet valve seat 300. The refrigerant flows out from the outlet valve seat 400 and flows back into the refrigerant circulation device, realizing the circulation of refrigerant. During the above process, the refrigerant in the refrigerant channel 201 absorbs the heat of the half sleeve 200, causing the half sleeve 200 to dissipate heat, which in turn dissipates heat from the motor body 10. The refrigerant that has absorbed heat dissipates heat in the external refrigerant circulation device, thus completing the heat dissipation process of the motor body 10.

[0058] By setting a half-sleeve 200 with a refrigerant channel 201, and introducing refrigerant into the refrigerant channel 201 through the inlet valve seat 300 and the outlet valve seat 400, heat dissipation is achieved by utilizing the phase change of the refrigerant. This allows the heat transferred from the motor body 10 to the half-sleeve 200 to be transferred to the refrigerant in a timely manner, and the heat is dissipated in a timely manner through the circulation of the refrigerant. Compared with the heat dissipation using fins 600 in related technologies, this method can improve heat dissipation efficiency and thus improve the working efficiency of the motor.

[0059] Furthermore, by utilizing refrigerant for heat dissipation, it is unaffected by the environment, thus improving the practicality of the cooling structure of hydroelectric permanent magnet motors.

[0060] In one possible implementation, the refrigerant passage 201 includes an inlet passage 2011 and an outlet passage 2012. The inlet valve seat 300 is connected to the inlet end of the inlet passage 2011, the outlet end of the inlet passage 2011 is connected to the inlet end of the outlet passage 2012, and the outlet valve seat 400 is connected to the outlet end of the outlet passage 2012.

[0061] The inlet end of the liquid inlet channel 2011 and the outlet end of the liquid outlet channel 2012 are located at the same end of the motor body 10.

[0062] In the above embodiments, by setting the inlet end of the liquid inlet channel 2011 and the outlet end of the liquid outlet channel 2012 to be located at the same end of the motor body 10, the inlet valve seat 300 and the outlet valve seat 400 can be installed simultaneously at the same end of the motor body 10, which can improve installation efficiency. At the same time, it is convenient to observe the working status of the inlet valve seat 300 and the outlet valve seat 400 simultaneously, facilitating timely detection of abnormalities. Furthermore, by setting the inlet end of the liquid inlet channel 2011 and the outlet end of the liquid outlet channel 2012 to be located at the same end of the motor body 10, the space at the end of the motor body 10 can be fully utilized, improving space utilization.

[0063] Reference Figure 3 and Figure 4 As shown, and in combination Figure 1 and Figure 2 In one possible implementation, the liquid inlet channel 2011 is located on the side of the half sleeve 200 near the motor body 10, and the liquid inlet channel 2011 is located between the liquid outlet channel 2012 and the motor body 10.

[0064] In the above embodiment, when the refrigerant flows in the inlet channel 2011 and the outlet channel 2012, the refrigerant first flows in the inlet channel 2011, which is closer to the motor body 10. At this time, the refrigerant can absorb more heat and has a good heat absorption effect. In addition, the refrigerant absorbs heat twice through the flow in the inlet channel 2011 and the outlet channel 2012, which helps to improve the heat absorption effect and thus improve the heat dissipation efficiency of the motor body 10.

[0065] In one possible implementation, in order to further improve the heat absorption effect, both the liquid inlet channel 2011 and the liquid outlet channel 2012 include multiple sub-channels 20, which are arranged at intervals along the circumference of the half sleeve 200.

[0066] In the above embodiments, it should be noted that the refrigerant absorbs heat in the refrigerant channel 201 through heat conduction via the contact between the refrigerant and the inner wall of the refrigerant channel 201. By setting both the liquid inlet channel 2011 and the liquid outlet channel 2012 to include multiple sub-channels 20, the contact area between the refrigerant and the refrigerant channel 201 can be increased, thereby improving the heat absorption effect.

[0067] In one possible implementation, refer to Figure 4 As shown, a buffer chamber 202 is provided inside the half sleeve 200. The buffer chamber 202 is connected to the liquid outlet end of each sub-channel 20 of the liquid inlet channel 2011 and the liquid inlet end of each sub-channel 20 of the liquid outlet channel 2012.

[0068] In the above embodiment, the refrigerant flowing out from the outlet end of the liquid inlet channel 2011 first enters the buffer chamber 202, and then enters the liquid outlet channel 2012 within the buffer chamber 202. This is equivalent to depressurizing each sub-channel 20 of the liquid inlet channel 2011 and then redistributing the pressure to make the pressure in each sub-channel 20 of the liquid outlet channel 2012 consistent, which helps to maintain the smooth flow of refrigerant in each sub-channel 20 and avoid blockage.

[0069] In one possible implementation, in order to further facilitate the smooth flow of refrigerant, the half sleeve 200 is also provided with a first pressure equalization chamber 203 and a second pressure equalization chamber 204. One of the first pressure equalization chamber 203 and the second pressure equalization chamber 204 is connected to the liquid inlet end of each sub-channel 20 of the liquid inlet channel 2011 and is connected to the liquid inlet valve seat 300.

[0070] The other of the first equalizing chamber 203 and the second equalizing chamber 204 is connected to the liquid outlet end of each sub-channel 20 of the liquid outlet channel 2012 and is also connected to the liquid outlet valve seat 400.

[0071] In the above embodiment, the accompanying drawings show that the first equalizing chamber 203 is connected to the inlet valve seat 300, and the second equalizing chamber 204 is connected to the outlet valve seat 400. Thus, the refrigerant entering the inlet channel 2011 through the inlet valve seat 300 first enters the first equalizing chamber 203. The first equalizing chamber 203 ensures that refrigerant flows through each sub-channel 20, and also helps improve heat dissipation. Similarly, the second equalizing chamber 204 is connected to each sub-channel 20 of the outlet channel 2012. The refrigerant flowing out of the outlet channel 2012 first concentrates in the second equalizing chamber 204, and then flows out through the outlet valve seat 400. This ensures the smooth flow of each sub-channel 20 in the outlet channel 2012.

[0072] In one possible implementation, a connecting component 500 is also included to improve structural stability.

[0073] The connecting component 500 is configured to connect two heat dissipation mechanisms 100 so that the heat dissipation mechanisms 100 clamp the motor body 10.

[0074] In the above embodiments, by setting the connecting component 500, the connection stability between the heat dissipation mechanism 100 and the motor body 10 can be improved, and the heat dissipation mechanism 100 and the motor body 10 can be tightly abutted, which helps to improve the heat dissipation effect.

[0075] In one possible implementation, the connecting assembly 500 includes a plurality of connecting posts 510 and a plurality of elastic cords 520.

[0076] The connecting post 510 and the elastic rope 520 correspond one-to-one. The connecting post 510 is connected to one end of the half sleeve 200 along the circumference, and the elastic rope 520 is connected to the other end of the half sleeve 200 along the circumference. The other end of the elastic rope 520 is sleeved on the corresponding connecting post 510.

[0077] In the above embodiments, the elastic rope 520 has a certain degree of elasticity. In one example, the elastic rope 520 can be a rubber rope, and the connecting post 510 has a certain limiting function. The elastic rope 520 is sleeved on the connecting post 510. Of course, in order to further ensure that the half sleeve 200 abuts tightly with the motor body 10, the elastic rope 520 can also be wrapped around the half sleeve 200 once before being sleeved on the connecting post 510. Through the above arrangement, a tight abutment between the half sleeve 200 and the motor body 10 can be achieved with a simple structure, which is convenient for installation and helps to reduce manufacturing costs.

[0078] In one possible implementation, in order to improve the heat conduction effect between the half sleeve 200 and the motor body 10, a heat-conducting layer is coated between the half sleeve 200 and the motor body 10. In one example, the heat-conducting layer can be a metal-based pure copper coating, a metal-based diamond / copper composite coating, a metal-based nano-oxide coating, or a thermally conductive silicone grease coating, all of which can improve the heat conduction effect between the motor body 10 and the half sleeve 200.

[0079] In addition, fins 600 are evenly distributed on the outer surface of the half-sleeve 200. The fins 600 can improve the convective heat transfer between the half-sleeve 200 and the air, and work together with the refrigerant to further improve the heat dissipation effect of the motor body 10.

[0080] The implementation principle of the cooling structure of a hydroelectric permanent magnet motor according to the embodiments of this application is as follows: The cooling structure of the hydroelectric permanent magnet motor provided in this application includes: at least two heat dissipation mechanisms 100. The two heat dissipation mechanisms 100 are sandwiched on the outer periphery of the motor body 10, and part of the structure abuts against the motor body 10. The heat dissipation mechanism 100 includes a half sleeve 200, an inlet valve seat 300 and an outlet valve seat 400. The half sleeve 200 has a refrigerant channel 201, which is used to introduce refrigerant. The inlet valve seat 300 and the outlet valve seat 400 are respectively connected to the two ends of the refrigerant channel 201. The inlet valve seat 300 and the outlet valve seat 400 are used to connect to an external refrigerant circulation device. By setting a half-sleeve 200 with a refrigerant channel 201, the half-sleeve 200 can be fitted onto the outer periphery of the motor body 10 for easy installation. Refrigerant is introduced into the refrigerant channel 201 through the inlet valve seat 300 and the outlet valve seat 400. Heat dissipation is achieved by utilizing the phase change of the refrigerant, so that the heat transferred from the motor body 10 to the half-sleeve 200 is transferred to the refrigerant in a timely manner. The heat is then dissipated in a timely manner through the circulation of the refrigerant. The circulation of the refrigerant is less affected by the ambient temperature. Compared with the heat dissipation using fins 600 in related technologies, the heat dissipation efficiency can be improved, thereby improving the working efficiency of the motor.

[0081] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein.

[0082] The embodiments in this application are intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed in this application. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0083] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A cooling structure for a hydroelectric permanent magnet motor, used in the motor body (10), characterized in that, include: At least two heat dissipation mechanisms (100); The two heat dissipation mechanisms (100) are sandwiched on the outer periphery of the motor body (10), and part of their structure abuts against the motor body (10); The heat dissipation mechanism (100) includes a half sleeve (200), an inlet valve seat (300), and an outlet valve seat (400); The half sleeve (200) has a refrigerant channel (201) inside, which is used to introduce refrigerant; The inlet valve seat (300) and the outlet valve seat (400) are respectively connected to both ends of the refrigerant channel (201), and the inlet valve seat (300) and the outlet valve seat (400) are used to connect to the external refrigerant circulation equipment.

2. The cooling structure of the hydroelectric permanent magnet motor according to claim 1, characterized in that, The refrigerant passage (201) includes an inlet passage (2011) and an outlet passage (2012). The inlet valve seat (300) is connected to the inlet end of the inlet passage (2011), the outlet end of the inlet passage (2011) is connected to the inlet end of the outlet passage (2012), and the outlet valve seat (400) is connected to the outlet end of the outlet passage (2012). The inlet end of the liquid inlet channel (2011) and the outlet end of the liquid outlet channel (2012) are located at the same end of the motor body (10).

3. The cooling structure for the hydroelectric permanent magnet motor according to claim 2, characterized in that, The liquid inlet channel (2011) is located on the side of the half sleeve (200) near the motor body (10), and the liquid inlet channel (2011) is located between the liquid outlet channel (2012) and the motor body (10).

4. The cooling structure of the hydroelectric permanent magnet motor according to claim 2, characterized in that, Both the liquid inlet channel (2011) and the liquid outlet channel (2012) include multiple sub-channels (20), which are arranged at intervals along the circumference of the half sleeve (200).

5. The cooling structure of the hydroelectric permanent magnet motor according to claim 4, characterized in that, The half sleeve (200) has a buffer cavity (202) inside, and the buffer cavity (202) is connected to the liquid outlet end of each of the sub-channels (20) of the liquid inlet channel (2011) and the liquid inlet end of each of the sub-channels (20) of the liquid outlet channel (2012).

6. The cooling structure of the hydroelectric permanent magnet motor according to claim 4, characterized in that, The half sleeve (200) is also provided with a first pressure equalization chamber (203) and a second pressure equalization chamber (204). One of the first pressure equalization chamber (203) and the second pressure equalization chamber (204) is connected to the inlet end of each of the sub-channels (20) of the liquid inlet channel (2011) and is connected to the liquid inlet valve seat (300). The other of the first equalizing chamber (203) and the second equalizing chamber (204) is connected to the liquid outlet end of each of the sub-channels (20) of the liquid outlet channel (2012) and is connected to the liquid outlet valve seat (400).

7. The cooling structure of the hydroelectric permanent magnet motor according to any one of claims 1 to 6, characterized in that, It also includes a connection component (500); The connecting assembly (500) is configured to connect the two heat dissipation mechanisms (100) so that the heat dissipation mechanisms (100) clamp the motor body (10).

8. The cooling structure for a hydroelectric permanent magnet motor according to claim 7, characterized in that, The connecting assembly (500) includes a plurality of connecting posts (510) and a plurality of elastic ropes (520); The connecting post (510) and the elastic rope (520) correspond one-to-one. The connecting post (510) is connected to one end of the half sleeve (200) along the circumferential direction, and the elastic rope (520) is connected to the other end of the half sleeve (200) along the circumferential direction. The other end of the elastic rope (520) is sleeved on the corresponding connecting post (510).

9. The cooling structure of the hydroelectric permanent magnet motor according to any one of claims 1 to 6, characterized in that, A heat-conducting layer is coated between the half sleeve (200) and the motor body (10).

10. The cooling structure of the hydroelectric permanent magnet motor according to any one of claims 1 to 6, characterized in that, The outer surface of the half sleeve (200) is evenly distributed with fins (600).

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