Self-circulation water-cooled motor

Abstract

The invention provides a self-circulation water-cooled motor, and relates to the technical field of motor cooling. The self-circulation water-cooled motor comprises a motor main body, wherein a cooling cavity is formed in the motor main body; the impeller is connected with the motor main body; the motor main body is connected with the water outlet piece, the water outlet piece is connected with the water outlet of the impeller, and the water outlet piece is connected with the cooling cavity; the suction inlet of the impeller is connected with the water return part, and the water return part is connected with the cooling cavity. The impeller pressurizes the cooling medium in the process of sucking and outputting the cooling medium, and when the pressure of the cooling medium in the water outlet piece is higher than that of the cooling cavity, the cooling medium is pressed into the cooling cavity, absorbs heat of the motor main body in the cooling cavity and then flows into the water return piece, and the circulation is repeated. The pressure in the water outlet piece is higher than the pressure in the cooling cavity to form a pressure difference, the water outlet piece continuously and stably conveys the cooling medium to the cooling cavity under the action of the pressure difference, the flow of the cooling medium entering the cooling cavity is stable, and the problem that water flow entering the cooling cavity is unstable is solved.

Description

Technical Field

[0001] This application relates to the field of motor cooling technology, and in particular to a self-circulating water-cooled motor. Background Technology

[0002] Self-circulating water-cooled motors are widely used in high-power industrial motors, high-speed drive systems, and other fields. During operation, the motor generates a lot of heat, which needs to be dissipated by a self-circulating water-cooling system.

[0003] The existing cooling system of a self-circulating water-cooled motor includes a cooling source, an impeller, and a cooling chamber. The cooling chamber is located inside the motor. The impeller's inlet is connected to the cooling source, and the impeller's outlet is connected to the cooling chamber. The cooling chamber is connected to the cooling source. The impeller draws the cooling medium from the cooling source into the cooling chamber. After absorbing heat from the motor, the cooling medium returns to the cooling source, and this cycle repeats continuously.

[0004] However, the water inlet of the impeller and the return water of the cooling chamber of the above-mentioned cooling system are both inside the cooling source. The impact of the return water flow will interfere with the flow field at the impeller inlet, causing the water flow rate to fluctuate. When the flow rate of the cooling medium in the cooling chamber is insufficient, it will cause the motor temperature to rise too high, affecting the operation of the motor. Summary of the Invention

[0005] This application provides a self-circulating water-cooled motor to solve the problem of unstable water flow rate.

[0006] On one hand, this application provides a self-circulating water-cooled motor, comprising:

[0007] The motor body has a cooling chamber inside it.

[0008] Impeller, the impeller being connected to the motor body;

[0009] The water outlet component is connected to the motor body, the water outlet component is connected to the water outlet of the impeller, and the water outlet component is connected to the cooling chamber.

[0010] The water return component is connected to the impeller's suction port and to the cooling chamber.

[0011] The impeller is configured to rotate under the drive of the motor body, so that the suction port of the impeller draws the cooling medium into the return water component from the cooling chamber, and delivers it to the outlet water component through the outlet of the impeller.

[0012] The water outlet is configured to deliver the cooling medium within the water outlet to the cooling chamber.

[0013] In one possible implementation, the self-circulating water-cooled motor provided in this application further includes a connecting shaft and a housing. The impeller is connected to the motor body via the connecting shaft. Both the connecting shaft and the impeller are disposed within the housing. The impeller divides the housing into an outlet chamber and a return chamber. A portion of the housing and a portion of the impeller corresponding to the outlet chamber form the outlet component, and another portion of the housing and another portion of the impeller corresponding to the return chamber form the return component. The outlet chamber is located above the return chamber, the impeller's suction port faces the return chamber, and the impeller's outlet port faces the outlet chamber.

[0014] In one possible implementation, the self-circulating water-cooled motor provided in this application further includes a water outlet pipe, which is sealed to the water outlet chamber and sealed to the cooling chamber.

[0015] It also includes a return water pipe, the return water chamber is sealed to the return water pipe, and the return water pipe is sealed to the cooling chamber.

[0016] In one possible implementation, the self-circulating water-cooled motor provided in this application has a water inlet and a water outlet on the motor body. Both the water inlet and the water outlet are connected to the outer wall of the motor body and the cooling cavity. The water inlet is sealed to the water outlet pipe, and the water outlet is sealed to the return water pipe.

[0017] In one possible implementation, the self-circulating water-cooled motor provided in this application has a guide channel inside the cooling chamber, the guide channel being connected to the water inlet and the water outlet.

[0018] In one possible implementation, the self-circulating water-cooled motor provided in this application further includes a plurality of guide ribs, which are distributed circumferentially along the inner wall of the cooling chamber, and a guide groove is formed between two adjacent guide ribs, the width of which is 8-15mm.

[0019] In one possible implementation, the self-circulating water-cooled motor provided in this application has an inner diameter of 15-30mm for both the return water pipe and the outlet water pipe, and the outer walls of both the return water pipe and the outlet water pipe are wrapped with a heat insulation layer with a thickness of 5-10mm.

[0020] In one possible implementation, the self-circulating water-cooled motor provided in this application further includes a regulating valve, a controller, and a detection element. The regulating valve is disposed on the water outlet pipe, and the detection element is disposed in the cooling chamber for detecting the temperature of the cooling chamber. Both the detection element and the regulating valve are electrically connected to the controller.

[0021] The regulating valve is configured such that when the detection element detects that the temperature inside the cooling chamber is too high, the controller controls the opening of the regulating valve to increase, and when the detection element detects that the temperature inside the cooling chamber is too low, the controller controls the opening of the regulating valve to decrease.

[0022] In one possible implementation, the self-circulating water-cooled motor provided in this application further includes an anti-vortex component. The housing is provided with a water inlet, which connects the outer wall of the housing to the return water cavity. The anti-vortex component is connected to the return water pipe and the water inlet.

[0023] In one possible implementation, the self-circulating water-cooled motor provided in this application further includes a filter element, which is detachably disposed on the end face of the water inlet located inside the return water chamber, for filtering impurities in the cooling medium.

[0024] This application provides a self-circulating water-cooled motor, comprising a motor body, an impeller, a water outlet, and a water return. The motor body contains a cooling chamber; the water outlet is connected to the cooling chamber, the cooling chamber is connected to the water return, the water return is connected to the impeller's suction port, and the impeller's outlet is connected to the water outlet. The impeller's suction port draws cooling medium from the water return and delivers it to the water outlet through the impeller's outlet. During the suction and discharge of cooling medium, the impeller pressurizes the medium, resulting in a high-pressure cooling medium discharged into the water outlet. When the pressure of the cooling medium in the water outlet exceeds the pressure in the cooling chamber, the cooling medium is forced into the cooling chamber, where it absorbs heat from the motor body before flowing back into the water return, thus creating a continuous cycle. The pressure difference between the water outlet and the cooling chamber creates a pressure differential, which allows the water outlet to continuously and stably supply cooling medium to the cooling chamber, ensuring a stable flow rate of cooling medium into the cooling chamber and solving the problem of unstable water flow into the cooling chamber. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] Figure 1 A schematic diagram of the self-circulating water-cooled motor provided in this application;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure from another direction;

[0028] Figure 3 for Figure 1 Schematic diagram of the internal structure of the main body of the motor;

[0029] Figure 4 for Figure 2Schematic diagram of the middle sealing component;

[0030] Figure 5 for Figure 2 Schematic diagram of the anti-vortex component;

[0031] Figure 6 for Figure 2 Schematic diagram of the structure of the filter element;

[0032] Figure 7 for Figure 2 A schematic diagram of the central water outlet pipe.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100 - Motor body; 110 - Cooling chamber; 111 - Guide groove; 112 - Guide rib;

[0035] 120 - Inlet section; 130 - Outlet section;

[0036] 200 - Impeller; 210 - Connecting shaft; 220 - Housing;

[0037] 300 - Water outlet component; 310 - Water outlet cavity; 320 - Water outlet pipe; 321 - Thermal insulation layer;

[0038] 400 - Return water component; 410 - Return water chamber; 420 - Return water pipe; 430 - Inlet;

[0039] 500 - Control valve; 510 - Controller; 520 - Detection element;

[0040] 600 - Anti-eddy current component; 601 - Annular mounting base; 602 - Honeycomb rectifier mesh;

[0041] 610 - Filter element; 611 - Primary filter screen; 612 - Fine filter element;

[0042] 700 - Double sealing joint; 710 - Fluororubber seal; 711 - Annular sealing groove; 712 - O-ring seal;

[0043] 720 - Metal Reinforced Sleeve.

[0044] 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

[0045] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this application according to the specific circumstances.

[0047] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0048] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.

[0049] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0050] Unless otherwise stated, the term "multiple" means two or more.

[0051] Self-circulating water-cooled motors are widely used in high-power industrial motors, high-speed drive systems, and other fields. During operation, the motor generates a lot of heat, which needs to be dissipated by a self-circulating water-cooling system.

[0052] Existing self-circulating water-cooled motor cooling systems include a cooling source, an impeller, and a cooling chamber. The cooling chamber is located inside the motor. The impeller's inlet is connected to the cooling source, and its outlet is connected to the cooling chamber. The cooling chamber is also connected to the cooling source. The impeller draws cooling medium from the cooling source into the cooling chamber, where it absorbs heat from the motor and returns to the cooling source, thus creating a continuous cycle. However, in these systems, both the impeller's inlet and the cooling chamber's return water are located within the cooling source. The impact of the return water flow can disrupt the flow field at the impeller's inlet, causing fluctuations in the outlet water flow. When the cooling medium flow in the cooling chamber is insufficient, it can lead to excessive motor temperature rise, affecting motor operation.

[0053] This application provides a self-circulating water-cooled motor, comprising a motor body, an impeller, a water outlet, and a water return. The motor body contains a cooling chamber; the water outlet is connected to the cooling chamber, the cooling chamber is connected to the water return, the water return is connected to the impeller's suction port, and the impeller's outlet is connected to the water outlet. The impeller's suction port draws cooling medium from the water return and delivers it to the water outlet through the impeller's outlet. During the suction and discharge of cooling medium, the impeller pressurizes the medium, resulting in a high-pressure cooling medium discharged into the water outlet. When the pressure of the cooling medium in the water outlet exceeds the pressure in the cooling chamber, the cooling medium is forced into the cooling chamber, where it absorbs heat from the motor body before flowing back into the water return, thus creating a continuous cycle. The pressure difference between the water outlet and the cooling chamber creates a pressure differential, which allows the water outlet to continuously and stably supply cooling medium to the cooling chamber, ensuring a stable flow rate of cooling medium into the cooling chamber and solving the problem of unstable water flow into the cooling chamber.

[0054] The embodiments of this application are described below with reference to the accompanying drawings.

[0055] Reference Figures 1 to 7 As shown, in some embodiments, this embodiment includes a motor body 100, with a cooling chamber 110 disposed within the motor body 100; an impeller 200 connected to the motor body 100; a water outlet 300 connected to the motor body 100, the water outlet 300 connected to the outlet of the impeller 200, and the water outlet 300 connected to the cooling chamber 110; and a water return component 400 connected to the inlet of the impeller 200, and the water return component 400 connected to the cooling chamber 110.

[0056] The impeller 200 is configured to rotate under the drive of the motor body 100, so that the inlet of the impeller 200 draws the cooling medium into the return water component 400 from the cooling chamber 110, and delivers it to the outlet water component 300 through the outlet of the impeller 200; the outlet water component 300 is configured to deliver the cooling medium in the outlet water component 300 to the cooling chamber 110.

[0057] The motor body 100 provides power to the cooling system while outputting driving force. In fields such as high-power industrial motors and high-speed drive systems, the output driving force drives the actuator to move. The motor body 100 generates heat during the process of outputting driving force, which needs to be cooled by the cooling system.

[0058] A cooling cavity 110 is provided inside the motor body 100. The cooling cavity 110 and the outer peripheral wall of the motor stator are directly attached to form a heat dissipation contact surface, ensuring that when the cooling medium flows in the cooling cavity 110, it can directly absorb the heat of the motor body 100 through the heat dissipation contact surface. The cooling cavity 110 is used to contain and circulate the cooling medium, which directly absorbs the heat from the stator, rotor and other heat-generating components of the motor body 100.

[0059] The impeller 200 is connected to the output shaft of the motor body 100. The impeller 200 rotates under the drive of the motor body 100. Cooling medium is drawn in from the suction port of the impeller 200 and discharged from the outlet of the impeller 200 after being pressurized. No external water pump is required. The cooling medium is circulated by the rotation of the motor itself. At the same time, the speed of the impeller 200 is synchronized with that of the motor body 100. The greater the load on the motor body 100 and the higher the speed, the greater the flow rate of the cooling medium, thus achieving adaptive cooling.

[0060] The water outlet 300 is used to transport the cooling medium to the cooling chamber 110 and simultaneously receive pressurized cooling medium from the outlet of the impeller 200. The increase in pressurized cooling medium within the water outlet 300 leads to an increase in internal pressure. When the internal pressure of the water outlet 300 is higher than that of the cooling chamber 110, the cooling medium flows steadily and continuously towards the cooling chamber 110 under pressure. This achieves a closed-loop flow of cooling medium from the outlet of the impeller 200 to the water outlet 300 and then back to the cooling chamber 110. Furthermore, the water outlet 300 and the cooling chamber 110 form a sealed flow channel to prevent leakage and ensure stable pressure and flow between them, thus solving the problem of unstable cooling medium flow into the cooling chamber 110.

[0061] The return water component 400 is used to receive the cooling medium that has absorbed the heat of the motor body 100 flowing out of the cooling chamber 110. At the same time, the cooling medium is drawn out of the return water component 400 through the suction port of the impeller 200, so that the cooling medium flows from the cooling chamber 110 to the return water component 400, and from the return water component 400 to the outlet water component 300 through the suction port of the impeller 200. Together with the outlet water component 300, a complete closed loop is formed to achieve self-circulation without relying on external pipelines and external power.

[0062] This application provides a self-circulating water-cooled motor, which consists of a motor body 100, an impeller 200, a water outlet 300, and a water return 400. The motor body 100 has a cooling chamber 110, the water outlet 300 is connected to the cooling chamber 110, the cooling chamber 110 is connected to the water return 400, the water return 400 is connected to the water inlet of the impeller 200, and the water outlet of the impeller 200 is connected to the water outlet 300. The impeller 200's suction port draws the cooling medium from the return water component 400 through its outlet to the outlet water component 300. During the intake and output of the cooling medium, the impeller 200 pressurizes the medium, resulting in a high-pressure cooling medium output to the outlet water component 300. When the pressure of the cooling medium in the outlet water component 300 exceeds the pressure in the cooling chamber 110, the cooling medium is forced into the cooling chamber 110. There, it absorbs heat from the motor body 100 and flows back into the return water component 400, thus creating a continuous cycle. The pressure difference between the outlet water component 300 and the cooling chamber 110 creates a pressure differential. Under this pressure difference, the outlet water component 300 continuously and stably supplies cooling medium to the cooling chamber 110, ensuring a stable flow rate and resolving the problem of unstable water flow within the cooling chamber 110.

[0063] Reference Figure 1 As shown, in some embodiments, this embodiment further includes a connecting shaft 210 and a housing 220. The impeller 200 is connected to the motor body 100 via the connecting shaft 210. Both the connecting shaft 210 and the impeller 200 are disposed within the housing 220. The impeller 200 divides the housing 220 into an outlet chamber 310 and a return chamber 410. A portion of the housing 220 and a portion of the impeller 200 corresponding to the outlet chamber 310 form an outlet component 300. Another portion of the housing 220 and another portion of the impeller 200 corresponding to the return chamber 410 form a return component 400. The outlet chamber 310 is located above the return chamber 410. The suction port of the impeller 200 faces the return chamber 410, and the outlet of the impeller 200 faces the outlet chamber 310.

[0064] In a specific implementation, this embodiment also includes a connecting shaft 210 and a housing 220. The connecting shaft 210 is used to connect the impeller 200 and the output shaft of the motor body 100, transmitting the output torque of the motor body 100 to the impeller 200, so that the motor body 100 drives the impeller 200 to rotate synchronously. The housing 220 serves as an external enclosing structure, with both the connecting shaft 210 and the impeller 200 located inside the housing 220, forming a closed internal flow channel space. At the same time, the housing 220 provides structural boundaries for the water outlet chamber 310 and the water return chamber 410, and provides a cavity for the cooling medium.

[0065] The outlet chamber 310 and the return chamber 410 are separated by the impeller 200. The suction port of the impeller 200 faces the return chamber 410, and the outlet port of the impeller 200 faces the outlet chamber 310. The cooling medium is drawn out of the return chamber 410 through the suction port of the impeller 200 and then enters the outlet chamber 310 through the outlet port of the impeller 200. It is worth mentioning that a part of the housing 220 and a part of the impeller 200 corresponding to the outlet chamber 310 form the outlet component 300, and another part of the housing 220 and another part of the impeller 200 corresponding to the return chamber 410 form the return component 400. The separation of the outlet chamber 310 and the return chamber 410 completely separates the inlet and outlet flow channels, avoiding short-circuit mixing of the high-pressure cooling medium in the outlet chamber 310 and the low-pressure cooling medium in the return chamber 410. The pressure difference created by the rotation of the impeller 200 stabilizes the pressure in the two chambers and improves the reliability of the self-circulation.

[0066] Reference Figure 1 and Figure 4 As shown, in some embodiments, the water outlet component 300 further includes a water outlet pipe 320, which is sealed to the water outlet chamber 310 and to the cooling chamber 110; the water return component 400 further includes a water return pipe 420, which is sealed to the water return chamber 410 and to the cooling chamber 110.

[0067] In this embodiment, the water outlet component 300 further includes a water outlet pipe 320, and the water return component 400 further includes a water return pipe 420. One end of the water outlet pipe 320 is sealed to the water outlet cavity 310, and the other end of the water outlet pipe 320 is sealed to the cooling cavity 110. One end of the water return pipe 420 is sealed to the cooling cavity 110, and the other end of the water return pipe 420 extends directly through the housing 220 into the interior of the water return cavity 410. The cooling medium flows from the water outlet cavity 310 to the cooling cavity 110 through the water outlet pipe 320, and then from the cooling cavity 110 to the water return cavity 410 through the water return pipe 420, realizing a unidirectional flow of the cooling medium from the water outlet cavity 310 to the cooling cavity 110, and then from the cooling cavity 110 to the water return cavity 410.

[0068] The outlet pipe 320 and return pipe 420 are arranged independently, ensuring that the outlet and return water channels do not interfere with each other, resulting in stable circulation flow and uniform cooling effect. At the same time, the cooling system has a simple and compact structure, is easy to assemble, and helps to reduce the size of the motor body and improve integration.

[0069] In practical implementation, the ends of the outlet pipe 320 and the return pipe 420 can be sealed with a double-seal joint 700, such as... Figure 4 As shown. The double-sealed joint 700 includes a fluororubber seal 710 and a metal reinforcing sleeve 720. The inner wall of the fluororubber seal 710 has two annular sealing grooves 711, and an O-ring seal 712 is embedded in the annular sealing grooves 711. The metal reinforcing sleeve 720 is fixedly connected to the motor body 100 by threads. The double-sealed structure, combined with the temperature resistance and aging resistance of fluororubber material, improves the sealing reliability of the connection between the cooling chamber 110 and the outlet pipe 320 and return pipe 420, preventing the leakage of cooling medium.

[0070] Reference Figure 3 As shown, in some embodiments, the motor body 100 is provided with a water inlet 120 and a water outlet 130. Both the water inlet 120 and the water outlet 130 are connected to the outer wall of the motor body 100 and the cooling cavity 110. The water inlet 120 is sealed to the water outlet pipe 320, and the water outlet 130 is sealed to the water return pipe 420.

[0071] In this embodiment, the motor body 100 is provided with a water inlet 120 and a water outlet 130. Both the water inlet 120 and the water outlet 130 are connected to the outer wall of the motor body 100 and the cooling cavity 110. The water inlet 120 is sealed to the water outlet pipe 320, and the water outlet 130 is sealed to the water return pipe 420. This allows the cooling medium to flow from the water outlet pipe 320 through the water inlet 120 into the cooling cavity 110, and from the cooling cavity 110 through the water outlet 130 into the water return pipe 420. By providing the water inlet 120 and the water outlet 130 on the motor body 100, the structure is highly integrated, the assembly positioning is accurate, which helps to improve the structural stability of the water-cooled motor and reduce the installation space of the motor body 100.

[0072] Reference Figure 3 As shown, in some embodiments, a guide channel 111 is provided inside the cooling chamber 110, the guide channel 111 is connected to the water inlet 120, and the guide channel 111 is connected to the water outlet 130.

[0073] In a specific implementation, a guide channel 111 is provided inside the cooling chamber 110. The guide channel 111 is spirally arranged circumferentially along the vertical direction of the cooling chamber 110. At the same time, one end of the guide channel 111 is connected to the water inlet 120, and the other end of the guide channel 111 is connected to the water outlet 130. The cooling medium enters the cooling chamber 110 from the water inlet 120 and flows along the guide channel 111. Finally, it flows out of the cooling chamber 110 through the water outlet 130 at the other end of the guide channel 111.

[0074] The guide channel 111 guides the cooling medium entering the cooling chamber 110 from the water inlet 120, ensuring that the cooling medium flows through the heat dissipation contact surface along the preset path, reducing the flow dead zone, extending the contact time between the cooling medium and the heat dissipation contact surface, improving heat exchange efficiency, and ensuring that the motor body 100 operates stably under high load and long-term working conditions, without performance degradation or failure due to heat accumulation.

[0075] Reference Figure 2 and Figure 3 As shown, in some embodiments, a plurality of flow guide ribs 112 are also provided in the cooling cavity 110. The plurality of flow guide ribs 112 are distributed circumferentially along the inner wall of the cooling cavity 110, and a flow guide groove 111 is formed between two adjacent flow guide ribs 112. The width of the flow guide groove 111 is 8-15mm.

[0076] In this embodiment, a plurality of guide ribs 112 are also provided in the cooling cavity 110. The guide grooves 111 in the cooling cavity 110 are formed by two adjacent guide ribs 112. That is, the guide ribs 112 and guide grooves 111 are spaced apart inside the cooling cavity 110, and the width of the guide grooves 111 is 8-15mm. The plurality of circumferentially arranged guide ribs 112 form continuous and orderly guide grooves 111 in the cooling cavity 110, which guide the cooling medium to uniformly cover the heat-generating area of ​​the motor along a preset path, avoid the formation of cooling dead zones, and improve the heat exchange uniformity. Limiting the width of the guide grooves 111 to the range of 8-15mm can ensure sufficient medium flow cross-sectional area, avoid excessive flow resistance affecting the self-circulation flow rate, and maintain a suitable medium flow rate to ensure heat exchange effect, thus balancing flow capacity and heat dissipation performance.

[0077] Reference Figure 2 and Figure 7 As shown, in some embodiments, the inner diameter of both the return pipe 420 and the outlet pipe 320 is 15-30mm, and the outer walls of both the return pipe 420 and the outlet pipe 320 are wrapped with a heat insulation layer 321, the thickness of which is 5-10mm.

[0078] In practical implementation, both the return water pipe 420 and the outlet water pipe 320 use oxygen-free copper pipes with an inner diameter of 15-30mm. Oxygen-free copper has a high thermal conductivity, which can help dissipate some heat during pipeline transportation, preventing the cooling medium from overheating and flowing back into the cooling chamber 110, thus improving the cooling effect. Furthermore, oxygen-free copper pipes are not prone to corrosion or blockage during long-term use in the cooling medium, ensuring smooth flow, reducing maintenance, and improving the long-term reliability of the motor. The outer wall of the pipe is wrapped with a heat insulation layer 321, with a thickness of 5-10mm, to prevent external heat from entering the pipeline through the pipe wall, avoiding an increase in the cooling medium temperature, and ensuring that the cooling medium still has good cooling capacity when entering the cooling chamber 110.

[0079] Reference Figure 2 As shown, in some embodiments, this embodiment also includes a regulating valve 500, a controller 510, and a detection element 520. The regulating valve 500 is disposed on the water outlet pipe 320, and the detection element 520 is disposed in the cooling chamber 110 for detecting the temperature of the cooling chamber 110. Both the detection element 520 and the regulating valve 500 are electrically connected to the controller 510.

[0080] The regulating valve 500 is configured such that when the detection element 520 detects that the temperature inside the cooling chamber 110 is too high, the controller 510 controls the opening of the regulating valve 500 to increase, and when the detection element 520 detects that the temperature inside the cooling chamber 110 is too low, the controller 510 controls the opening of the regulating valve 500 to decrease.

[0081] In specific implementation, this embodiment also includes a regulating valve 500, a controller 510, and a detection element 520. The regulating valve 500 is installed on the outlet pipe 320, and the detection element 520 is installed inside the cooling chamber 110. The detection element 520 can be a temperature sensor. Both the detection element 520 and the regulating valve 500 are electrically connected to the controller 510. When the detection element 520 detects that the temperature inside the cooling chamber 110 is too high, the controller 510 receives the temperature signal from the detection element 520 and controls the opening of the regulating valve 500 to increase the flow rate of the cooling medium into the cooling chamber 110, accelerating the heat dissipation of the motor body 100. When the detection element 520 detects that the temperature inside the cooling chamber 110 is too low, the controller 510 controls the opening of the regulating valve 500 to decrease the flow rate of the cooling medium into the cooling chamber 110, temporarily slowing down the heat dissipation of the motor body 100. This allows the motor cooling system to automatically adjust the flow rate according to the actual temperature rise of the motor, avoiding overheating or overcooling and ensuring that the motor always operates within a suitable temperature range.

[0082] To monitor the pressure in the outlet chamber 310, a pressure sensor is installed inside the outlet chamber 310. The pressure sensor is electrically connected to the controller 510. When the detected pressure value is lower than a preset threshold, the controller 510 issues an alarm signal and controls the motor body 100 to operate under reduced load. The pressure sensor can monitor the pressure status of the outlet chamber 310 in real time, promptly detect abnormalities such as pipe blockage and leakage, and prevent the motor from being damaged due to insufficient cooling.

[0083] Reference Figure 2 and Figure 5 As shown, in some embodiments, this embodiment also includes an anti-vortex component 600. The housing 220 is provided with a water inlet 430, which connects the outer wall of the housing 220 with the return water cavity 410. The anti-vortex component 600 is connected to the return water pipe 420 and the water inlet 430.

[0084] In specific implementation, this embodiment also includes an anti-vortex component 600, and an inlet 430 is provided on the housing 220, such as... Figure 1 As shown, the inlet 430 connects the outer wall of the housing 220 to the return water chamber 410. The inlet 430 is sealed to the return water pipe 420, allowing the cooling medium to flow from the return water pipe 420 through the inlet 430 into the return water chamber 410. An anti-vortex component 600 is disposed between the return water pipe 420 and the inlet 430. The anti-vortex component 600 includes an annular mounting base 601 and a honeycomb-shaped rectifier mesh 602, as shown... Figure 5 As shown, the honeycomb rectifier mesh 602 has a pore size of 2-5mm, its end face is flush with the inner wall of the return water chamber 410, and the minimum distance between it and the impeller 200 is 1 / 5-1 / 3 of the diameter of the impeller 200. The honeycomb rectifier mesh 602 can rectify the return cooling medium, avoid the formation of eddies that interfere with the rotation of the impeller 200, and ensure the operational stability and pressure output efficiency of the impeller 200.

[0085] Reference Figure 6 As shown, in some embodiments, this embodiment also includes a filter element 610, which is detachably disposed on the end face of the inlet 430 located inside the return water chamber 410, for filtering impurities in the cooling medium.

[0086] This embodiment also includes a filter element 610, which is detachably mounted on the end face of the inlet 430 located inside the return water chamber 410. The filter element 610 can be a two-stage filter element 610, which includes a primary filter screen 611 and a fine filter element 612, such as... Figure 6As shown, the primary filter 611 is a stainless steel mesh with a pore size of 100-150μm, and the fine filter element 612 is a ceramic filter element with a pore size of 20-50μm. The two-stage filter element 610 can filter impurities in the cooling medium, preventing impurities from entering the impeller 200 or clogging the channel, extending the service life of the equipment. The detachable design facilitates maintenance and replacement.

[0087] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A self-circulating water-cooled motor, characterized in that, include: The motor body (100) has a cooling chamber (110) inside it. Impeller (200), the impeller (200) is connected to the motor body (100); Water outlet component (300), the motor body (100) is connected to the water outlet component (300), the water outlet component (300) is connected to the outlet of the impeller (200), and the water outlet component (300) is connected to the cooling chamber (110); The water return component (400) is connected to the inlet of the impeller (200), and the water return component (400) is connected to the cooling chamber (110). The impeller (200) is configured to rotate under the drive of the motor body (100) so that the inlet of the impeller (200) draws the cooling medium from the cooling chamber (110) into the return water component (400) and delivers it to the outlet component (300) through the outlet of the impeller (200). The water outlet (300) is configured to deliver the cooling medium within the water outlet (300) to the cooling chamber (110).

2. The self-circulating water-cooled motor according to claim 1, characterized in that, It also includes a connecting shaft (210) and a housing (220). The impeller (200) is connected to the motor body through the connecting shaft (210). The connecting shaft (210) and the impeller (200) are both disposed in the housing (220). The impeller (200) divides the housing (220) into an outlet chamber (310) and a return chamber (410). A portion of the housing (220) and a portion of the impeller (200) corresponding to the outlet chamber (310) form the outlet component (300). Another portion of the housing (220) and another portion of the impeller (200) corresponding to the return chamber (410) form the return component (400). The outlet chamber (310) is located above the return chamber (410). The suction port of the impeller (200) faces the return chamber (410), and the outlet of the impeller (200) faces the outlet chamber (310).

3. The self-circulating water-cooled motor according to claim 2, characterized in that, It also includes a water outlet pipe (320), which is sealed to the water outlet chamber (310) and sealed to the cooling chamber (110); It also includes a return water pipe (420), the return water chamber (410) is sealed to the return water pipe (420), and the return water pipe (420) is sealed to the cooling chamber (110).

4. The self-circulating water-cooled motor according to claim 3, characterized in that, The motor body (100) is provided with a water inlet (120) and a water outlet (130). The water inlet (120) and the water outlet (130) are both connected to the outer wall of the motor body (100) and the cooling cavity (110). The water inlet (120) is sealed to the water outlet pipe (320), and the water outlet (130) is sealed to the water return pipe (420).

5. The self-circulating water-cooled motor according to claim 4, characterized in that, The cooling chamber (110) is provided with a guide channel (111), which is connected to the water inlet (120) and the water outlet (130).

6. The self-circulating water-cooled motor according to claim 5, characterized in that, It also includes multiple guide ribs (112), which are distributed circumferentially along the inner wall of the cooling cavity (110). A guide groove (111) is formed between two adjacent guide ribs (112), and the width of the guide groove (111) is 8-15mm.

7. The self-circulating water-cooled motor according to any one of claims 3-6, characterized in that, The inner diameter of the return water pipe (420) and the outlet water pipe (320) is 15-30mm. The outer walls of the return water pipe (420) and the outlet water pipe (320) are covered with a heat insulation layer (321), and the thickness of the heat insulation layer (321) is 5-10mm.

8. The self-circulating water-cooled motor according to claim 7, characterized in that, It also includes a regulating valve (500), a controller (510), and a detection element (520). The regulating valve (500) is installed on the water outlet pipe (320), and the detection element (520) is installed in the cooling chamber (110) for detecting the temperature of the cooling chamber (110). The detection element (520) and the regulating valve (500) are both electrically connected to the controller (510). The regulating valve (500) is configured such that when the detection element (520) detects that the temperature inside the cooling chamber (110) is too high, the controller (510) controls the opening of the regulating valve (500) to increase, and when the detection element (520) detects that the temperature inside the cooling chamber (110) is too low, the controller (510) controls the opening of the regulating valve (500) to decrease.

9. The self-circulating water-cooled motor according to claim 3, characterized in that, It also includes an anti-vortex component (600), the housing (220) is provided with a water inlet, the water inlet connects the outer wall of the housing (220) and the return water cavity (410), the anti-vortex component (600) is connected to the return water pipe (420), and the anti-vortex component (600) is connected to the water inlet.

10. The self-circulating water-cooled motor according to claim 9, characterized in that, It also includes a filter element (610), which is detachably disposed on the end face of the water inlet located inside the return water chamber (410) for filtering impurities in the cooling medium.

Images