High-voltage motor and high-voltage cooling fan

Abstract

The utility model discloses a high-voltage motor and a high-voltage cooling fan, and relates to the technical field of motors. The high-voltage motor comprises a first casing, a second casing, a winding stator, a rotor assembly, a water cooling assembly and a controller. The winding stator is encapsulated in the first casing and sleeved outside the rotor assembly, the first casing and the second casing are coaxially arranged and connected with each other, the first casing is provided with a first water cooling channel, the second casing is provided with a second water cooling channel, and the controller is mounted in the second casing, is arranged close to the second water cooling channel and is electrically connected with the winding stator. The water cooling assembly is installed on the second machine shell and connected with the first water cooling channel through the second water cooling channel. According to the high-voltage motor provided by the utility model, rapid heat dissipation of the motor body and the controller can be realized at the same time, the heat dissipation efficiency is high, the heat dissipation effect is good, the structure is simple, the overall size is reduced through the built-in controller, the occupied space is small, and the applicability is strong.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and more specifically, to a high-voltage motor and a high-voltage cooling fan. Background Technology

[0002] In recent years, new energy vehicles have increasingly emphasized performance improvements in thermal management. The fan is a crucial component of the cooling system, directly impacting the performance of the entire vehicle's heat dissipation system, and the motor is vital to the efficiency and performance of the fan. To improve heat dissipation efficiency, current new energy vehicles generally use high-voltage motors. However, current high-voltage motors have poor heat dissipation, resulting in high internal temperatures and affecting their lifespan. Furthermore, the controllers of high-voltage motors are typically external, requiring separate heat dissipation structures, leading to a complex overall structure, larger size, and larger space occupation, hindering miniaturization.

[0003] In view of this, designing and manufacturing a high-voltage motor and a high-voltage cooling fan with good heat dissipation and small footprint is particularly important, especially in new energy vehicles. Utility Model Content

[0004] The purpose of this utility model is to provide a high-voltage motor that can simultaneously achieve rapid heat dissipation of the motor body and the controller, with high heat dissipation efficiency, good heat dissipation effect, simple structure, reduced overall size by building the controller in-house, small space occupation, and strong applicability.

[0005] Another objective of this invention is to provide a high-pressure cooling fan that can simultaneously achieve rapid heat dissipation of both the motor body and the controller. It has high heat dissipation efficiency, good heat dissipation effect, and a simple structure. By incorporating the controller, the overall size is reduced, the space occupied is small, and the applicability is strong.

[0006] This utility model is achieved by the following technical solution.

[0007] A high-voltage motor includes a first housing, a second housing, a wound stator, a rotor assembly, a water-cooling assembly, and a controller. The wound stator is encapsulated within the first housing and fitted over the rotor assembly. The first housing and the second housing are coaxially arranged and interconnected. The first housing has a first water-cooling channel, and the second housing has a second water-cooling channel. The controller is installed within the second housing, adjacent to the second water-cooling channel, and electrically connected to the wound stator. The water-cooling assembly is installed within the second housing and connected to the first water-cooling channel via the second water-cooling channel.

[0008] Optionally, the rotor assembly includes a rotor body, a protective steel sleeve, and multiple magnets. The multiple magnets are arranged in a ring array outside the rotor body, and the protective steel sleeve is simultaneously fitted over the multiple magnets.

[0009] Optionally, the rotor body includes a rotating shaft, a first bearing, a second bearing, and multiple rotor laminations. The multiple rotor laminations are stacked and all are sleeved outside the rotating shaft and keyed to the rotating shaft. The first bearing and the second bearing are disposed opposite to each other at both ends of the rotating shaft. The first bearing is connected to the first housing, and the second bearing is connected to the second housing.

[0010] Optionally, the rotor laminations have multiple weight-reduction holes, which are spaced apart.

[0011] Optionally, the high-voltage motor also includes a conductive ring, which is sleeved outside the rotating shaft and rotates in conjunction with the first housing.

[0012] Optionally, the protective steel sleeve includes an interconnected sleeve portion and an extension portion. The sleeve portion is simultaneously sleeved on the outside of multiple magnets, and the extension portion extends toward the axis of the sleeve portion and abuts against the end face of the rotor body.

[0013] Optionally, the extension has multiple serrated holes arranged in a ring array.

[0014] Optionally, the water-cooling component includes an inlet pipe and an outlet pipe, and the second water-cooling channel includes an inlet channel and an outlet channel. Both the inlet channel and the outlet channel are arranged in a meandering manner. The inlet pipe is connected to the inlet channel, the inlet channel is connected to the outlet channel through the first water-cooling channel, and the outlet channel is connected to the outlet pipe.

[0015] Optionally, the first water-cooling channel includes a first annular channel, a second annular channel, and multiple connecting channels. The first annular channel and the second annular channel are parallel and spaced apart and coaxially arranged. The multiple connecting channels are distributed in a ring array. The second water-cooling channel is connected to the first annular channel. The first annular channel is connected to the second annular channel through multiple connecting channels.

[0016] A high-pressure cooling fan includes the aforementioned high-pressure motor. The high-pressure motor includes a first housing, a second housing, a wound stator, a rotor assembly, a water-cooling assembly, and a controller. The wound stator is encapsulated within the first housing and sleeved outside the rotor assembly. The first housing and the second housing are coaxially arranged and interconnected. The first housing has a first water-cooling channel, and the second housing has a second water-cooling channel. The controller is installed within the second housing, adjacent to the second water-cooling channel, and electrically connected to the wound stator. The water-cooling assembly is installed within the second housing and connected to the first water-cooling channel through the second water-cooling channel.

[0017] The high-voltage motor and high-voltage cooling fan provided by this utility model have the following beneficial effects:

[0018] The high-voltage motor provided by this utility model has a wound stator encapsulated within a first housing and fitted over the rotor assembly. The first and second housings are coaxially arranged and interconnected. The first housing has a first water-cooling channel, and the second housing has a second water-cooling channel. The controller is installed inside the second housing, adjacent to the second water-cooling channel, and electrically connected to the wound stator. The water-cooling assembly is installed in the second housing and connected to the first water-cooling channel via the second water-cooling channel. Compared with the prior art, the high-voltage motor provided by this utility model, due to the interconnected first and second housings and the water-cooling assembly and controller installed within the second housing, can simultaneously achieve rapid heat dissipation of both the motor body and the controller, resulting in high heat dissipation efficiency, good heat dissipation effect, simple structure, reduced overall size through built-in controller, small space occupation, and strong applicability.

[0019] The high-pressure cooling fan provided by this utility model includes a high-pressure motor, which can simultaneously achieve rapid heat dissipation of the motor body and the controller. It has high heat dissipation efficiency, good heat dissipation effect, and simple structure. The overall size is reduced by the built-in controller, which occupies little space and has strong applicability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of the high-voltage motor provided in this embodiment of the utility model;

[0022] Figure 2 An exploded view of a high-voltage motor provided for an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the rotor assembly in a high-voltage motor provided in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection between the water-cooling component and the second housing in a high-voltage motor according to an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the connection between the second housing and the first housing in a high-voltage motor provided in an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the first housing in the high-voltage motor provided in an embodiment of the present utility model;

[0027] Figure 7 This is a cross-sectional view of the first housing of the high-voltage motor provided in an embodiment of the present invention.

[0028] Icons: 100-High voltage motor; 110-First housing; 111-First water-cooling channel; 112-First annular channel; 113-Second annular channel; 114-Connecting channel; 120-Second housing; 121-Second water-cooling channel; 122-Water inlet channel; 123-Water outlet channel; 130-Wound stator; 140-Rotor assembly; 141-Rotor body; 1411-Shaft; 1412-First... 1413 - Second bearing; 1414 - Rotor laminations; 1415 - Weight reduction hole; 142 - Protective steel sleeve; 1421 - Sleeve fitting part; 1422 - Extension part; 1423 - Serrated hole; 143 - Magnet; 150 - Water cooling assembly; 151 - Water inlet pipe; 152 - Water outlet pipe; 160 - Controller; 170 - Motor body; 180 - Conductive ring; 190 - Oil seal; 200 - Sealing ring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" 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.

[0034] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0035] Please refer to the reference. Figures 1 to 7 This utility model embodiment provides a high-pressure cooling fan (not shown) for air cooling. It can simultaneously achieve rapid heat dissipation of the motor body 170 and the controller 160, with high heat dissipation efficiency, good heat dissipation effect, and simple structure. By incorporating the controller 160, the overall size is reduced, occupying little space and having strong applicability.

[0036] It should be noted that the high-pressure cooling fan includes a high-pressure motor 100 and fan blades (not shown in the figure). The high-pressure motor 100 is connected to the fan blades via a drive mechanism, and the high-pressure motor 100 is used to drive the fan blades to rotate in order to achieve the air-cooling function.

[0037] The high-voltage motor 100 includes a first housing 110, a second housing 120, a wound stator 130, a rotor assembly 140, a water-cooling assembly 150, and a controller 160. The wound stator 130 is encapsulated within the first housing 110 and fitted over the rotor assembly 140. The rotor assembly 140 is rotatable relative to the wound stator 130. The wound stator 130, the rotor assembly 140, and the first housing 110 together form the motor body 170. The first housing 110 and the second housing 120 are coaxially arranged and interconnected. The first housing 110 is provided with a first water-cooling channel 111, and the second housing 120 is provided with a second water-cooling channel 121. Specifically, the controller 160 is installed inside the second housing 120 and adjacent to the second water-cooling channel 121, and is electrically connected to the wound stator 130 to achieve built-in control of the controller 160. This facilitates water cooling of the controller 160 through the second water-cooling channel 121. The controller 160 is used to send electrical signals to the wound stator 130 to control the operation of the motor body 170. The water-cooling component 150 is installed in the second housing 120 and connected to the first water-cooling channel 111 through the second water-cooling channel 121. The cooling water entering the water-cooling component 150 can flow into the second water-cooling channel 121 and the first water-cooling channel 111 to simultaneously cool the motor body 170 and the controller 160, thereby achieving heat dissipation and temperature reduction for both the motor body 170 and the controller 160. In this way, the high-voltage motor 100 can simultaneously achieve rapid heat dissipation of the motor body 170 and the controller 160 without the need to set up a separate heat dissipation structure for the controller 160. It has high heat dissipation efficiency and good heat dissipation effect. In addition, the high-voltage motor 100 has a simple structure and reduces the overall size by integrating the controller 160, thus occupying less space and having strong applicability.

[0038] Preferably, the wound stator 130 is composed of multiple stator core blocks. Using block-type stator cores can improve slot fill factor, reduce current, lower losses, and increase motor efficiency. Furthermore, the first housing 110 is cylindrical, and the wound stator 130 is pressed into the first housing 110. Simultaneously, a potting process is used for sealing to prevent water, moisture, dust, and other external substances from corroding the wound stator 130, thereby improving the insulation and reliability of the high-voltage motor 100, while also facilitating internal heat dissipation and extending service life.

[0039] The rotor assembly 140 includes a rotor body 141, a protective steel sleeve 142, and a plurality of magnets 143. The plurality of magnets 143 are arranged in a ring array outside the rotor body 141, and the protective steel sleeve 142 is simultaneously fitted over the plurality of magnets 143. Specifically, the magnets 143 are bonded to the outside of the rotor body 141 to prevent them from falling off due to centrifugal force, and the protective steel sleeve 142 is used to shield and protect the magnets 143, thereby improving the reliability of the rotor assembly 140.

[0040] The rotor body 141 includes a rotating shaft 1411, a first bearing 1412, a second bearing 1413, and multiple rotor laminations 1414. The multiple rotor laminations 1414 are overlapped and all fitted over the rotating shaft 1411, and all are keyed to the rotating shaft 1411 to ensure synchronous rotation of the multiple rotor laminations 1414 and the rotating shaft 1411. The first bearing 1412 and the second bearing 1413 are positioned opposite each other at both ends of the rotating shaft 1411. The first bearing 1412 is connected to the first housing 110, and the second bearing 1413 is connected to the second housing 120 to ensure stable rotation of the rotating shaft 1411 relative to the first housing 110 and the second housing 120, improving the balance of the rotating shaft 1411's rotation.

[0041] In this embodiment, the rotor laminations 1414 are provided with a plurality of weight reduction holes 1415, which are spaced apart to achieve the weight reduction function of the rotor laminations 1414 and improve the heat dissipation effect.

[0042] In this embodiment, both the first bearing 1412 and the second bearing 1413 are deep groove ball bearings, which are filled with an appropriate amount of high-quality grease, resulting in low frictional torque, low noise, and ease of manufacturing. Furthermore, the magnet 143 is made of neodymium iron boron material, which has a high temperature resistance and good heat dissipation performance.

[0043] Preferably, the high-voltage motor 100 further includes a conductive ring 180. The conductive ring 180 is sleeved on the outside of the rotating shaft 1411 and rotates in conjunction with the first housing 110. The conductive ring 180 is used to conduct excessive shaft current to the first housing 110 to ensure reliable operation of the motor body 170 and extend its service life.

[0044] Furthermore, an oil seal 190 is provided outside the conductive ring 180. The oil seal 190 can prevent lubricating oil leakage, ensure good lubrication between mechanical parts, and prevent external dust, mud and other impurities from entering the high-voltage motor 100, thereby improving the working efficiency and service life of the high-voltage motor 100.

[0045] The protective steel sleeve 142 includes a sleeve portion 1421 and an extension portion 1422 that are connected to each other. In this embodiment, the sleeve portion 1421 and the extension portion 1422 are integrally formed to improve the connection strength. The sleeve portion 1421 is sleeved on the outside of multiple magnets 143. The extension portion 1422 extends toward the axis of the sleeve portion 1421 and abuts against the end face of the rotor body 141. The extension portion 1422 can limit the rotor body 141 to prevent the rotor body 141 from falling out of the protective steel sleeve 142.

[0046] Preferably, the extension 1422 has a plurality of serrated holes 1423 arranged in a ring array to increase friction and prevent the rotor body 141 from moving relative to the extension 1422, and further prevent the rotor body 141 from falling out of the protective steel sleeve 142.

[0047] In this embodiment, there are two protective steel sleeves 142, which are arranged opposite to each other. The two sleeve portions 1421 are arranged adjacent to each other and are both located between the two extension portions 1422. The two extension portions 1422 work together to clamp the rotor body 141 between the two extension portions 1422, thereby improving the limiting effect on the rotor body 141.

[0048] The water-cooling assembly 150 includes an inlet pipe 151 and an outlet pipe 152, and the second water-cooling channel 121 includes an inlet channel 122 and an outlet channel 123. The inlet pipe 151 is connected to the inlet channel 122, which is connected to the outlet channel 123 via a first water-cooling channel 111. The outlet channel 123 is connected to the outlet pipe 152. Cooling water can enter the inlet channel 122 from the inlet pipe 151, then enter the outlet channel 123 via the first water-cooling channel 111, and finally exit through the outlet pipe 152, thus achieving water cooling for the motor body 170 and the controller 160. Specifically, both the inlet channel 122 and the outlet channel 123 are arranged in a meandering shape to extend the flow length of the cooling water within the second housing 120, improving heat dissipation efficiency and enhancing the cooling effect.

[0049] The first water-cooling channel 111 includes a first annular channel 112, a second annular channel 113, and multiple connecting channels 114. The first annular channel 112 and the second annular channel 113 are parallel, spaced apart, and coaxially arranged. The multiple connecting channels 114 are arranged in a ring array. The inlet channel 122 and the outlet channel 123 of the second water-cooling channel 121 are both connected to the first annular channel 112. The first annular channel 112 is connected to the second annular channel 113 through the multiple connecting channels 114. Cooling water can enter the first annular channel 112 from the inlet channel 122, and then enter the second annular channel 113 through the multiple connecting channels 114 to fill the entire first water-cooling channel 111. After that, it is discharged through the outlet channel 123 to realize the water-cooling function of the motor body 170. Specifically, the side wall of the first housing 110 has a double-layer structure to form a sandwich cavity. The first annular channel 112, the second annular channel 113, and the multiple connecting channels 114 are all located in the sandwich cavity.

[0050] Preferably, the high-voltage motor 100 further includes a sealing ring 200. The first housing 110 and the second housing 120 are bolted together, and the sealing ring 200 is clamped between the first housing 110 and the second housing 120. The sealing ring 200 is used to seal the gap between the first housing 110 and the second housing 120 to prevent external dust, mud and other impurities from entering, and to prevent internal lubricating oil and other liquids from leaking, thereby improving safety and reliability.

[0051] The high-voltage motor 100 provided in this embodiment of the utility model has a wound stator 130 encapsulated in a first housing 110 and sleeved on the outside of a rotor assembly 140. The first housing 110 and the second housing 120 are coaxially arranged and connected to each other. The first housing 110 is provided with a first water-cooling channel 111, and the second housing 120 is provided with a second water-cooling channel 121. The controller 120 is installed in the second housing 120 and is arranged adjacent to the second water-cooling channel 121 and electrically connected to the wound stator 130. The water-cooling assembly 150 is installed in the second housing 120 and is connected to the first water-cooling channel 111 through the second water-cooling channel 121. Compared with the prior art, the high-voltage motor 100 provided by this utility model, due to the interconnected first housing 110 and second housing 120, and the water-cooling component 150 and controller 160 installed in the second housing 120, can simultaneously achieve rapid heat dissipation of the motor body 170 and the controller 160, resulting in high heat dissipation efficiency, good heat dissipation effect, and simple structure. The built-in controller 160 reduces the overall size, occupies little space, and has strong applicability. This also results in good heat dissipation effect and long service life of the high-voltage cooling fan.

[0052] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-voltage motor, characterized in that, The device includes a first housing, a second housing, a wound stator, a rotor assembly, a water-cooling assembly, and a controller. The wound stator is encapsulated within the first housing and fitted over the rotor assembly. The first housing and the second housing are coaxially arranged and interconnected. The first housing has a first water-cooling channel, and the second housing has a second water-cooling channel. The controller is installed within the second housing, adjacent to the second water-cooling channel, and electrically connected to the wound stator. The water-cooling assembly is installed within the second housing and connected to the first water-cooling channel via the second water-cooling channel.

2. The high-voltage motor according to claim 1, characterized in that, The rotor assembly includes a rotor body, a protective steel sleeve, and multiple magnets. The multiple magnets are arranged in a ring array outside the rotor body, and the protective steel sleeve is simultaneously fitted over the multiple magnets.

3. The high-voltage motor according to claim 2, characterized in that, The rotor body includes a rotating shaft, a first bearing, a second bearing, and multiple rotor laminations. The multiple rotor laminations are stacked and all are sleeved on the outside of the rotating shaft and keyed to the rotating shaft. The first bearing and the second bearing are disposed opposite to each other at both ends of the rotating shaft. The first bearing is connected to the first housing, and the second bearing is connected to the second housing.

4. The high-voltage motor according to claim 3, characterized in that, The rotor laminations have multiple weight-reduction holes, which are spaced apart.

5. The high-voltage motor according to claim 3, characterized in that, The high-voltage motor also includes a conductive ring, which is sleeved outside the rotating shaft and rotates in conjunction with the first housing.

6. The high-voltage motor according to claim 2, characterized in that, The protective steel sleeve includes a sleeve portion and an extension portion connected to each other. The sleeve portion is simultaneously sleeved on the outside of multiple magnets, and the extension portion extends toward the axis of the sleeve portion and abuts against the end face of the rotor body.

7. The high-voltage motor according to claim 6, characterized in that, The extension has multiple serrated holes arranged in a ring array.

8. The high-voltage motor according to claim 1, characterized in that, The water-cooling assembly includes an inlet pipe and an outlet pipe. The second water-cooling channel includes an inlet channel and an outlet channel. Both the inlet channel and the outlet channel are arranged in a meandering manner. The inlet pipe is connected to the inlet channel. The inlet channel is connected to the outlet channel through the first water-cooling channel. The outlet channel is connected to the outlet pipe.

9. The high-voltage motor according to claim 1, characterized in that, The first water-cooling channel includes a first annular channel, a second annular channel, and multiple connecting channels. The first annular channel and the second annular channel are parallel and coaxially spaced. The multiple connecting channels are arranged in a ring array. The second water-cooling channel is connected to the first annular channel. The first annular channel is connected to the second annular channel through the multiple connecting channels.

10. A high-pressure cooling fan, characterized in that, Including the high-voltage motor as described in any one of claims 1-9.

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