Motor, power assembly and vehicle

Abstract

The utility model discloses a motor, a power assembly and a vehicle, the motor comprises a medium channel used for conveying a liquid medium to a stator and a liquefying device used for converting a gaseous medium into the liquid medium, and the gaseous medium is formed by vaporizing the liquid medium conveyed to the stator. The liquid medium sprayed out of the medium channel is in contact with the stator and then vaporizes to absorb heat, and the vaporized gaseous medium is in contact with the liquefying device and then transfers the heat to the liquefying device, so that the heat dissipation efficiency of the motor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a motor, a power assembly and a vehicle. Background Art

[0002] As a power unit, the motor is a core component of electric and hybrid vehicles. With the rapid development of motor technology, motor miniaturization is an industry trend. To ensure that miniaturized motors deliver equivalent or superior power performance, their power density per unit volume must be increased, placing higher demands on motor heat dissipation. Existing technologies primarily dissipate heat from motors by arranging cooling channels in the motor housing. However, this method has limited heat dissipation capabilities, necessitating the development of a new heat dissipation solution. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, a motor, a powertrain and a vehicle are provided, which can at least improve the heat dissipation efficiency of the motor.

[0004] In a first aspect, the present invention provides a switching device, comprising:

[0005] Medium channel, used to transport liquid medium to the stator,

[0006] The liquefaction device is used to convert the gaseous medium into the liquid medium, wherein the gaseous medium is formed by vaporizing the liquid medium delivered to the stator.

[0007] As an implementable manner, the medium channel includes a first channel, a liquid outlet of the first channel is used to transport the liquid medium to the stator, and the liquefaction device includes a tubular structure, and the tubular structure is used to convert the gaseous medium into the liquid medium.

[0008] As an achievable embodiment, the liquid outlet of the first channel is arranged relative to the stator so that the liquid medium sprayed through the liquid outlet of the first channel can fall onto the stator; the tubular structure includes a capillary core, which is arranged relative to the stator so that the gaseous medium after contacting the stator can fall onto the capillary core.

[0009] As an implementable manner, it further comprises a shell, on which an atomizing nozzle is further provided, and the atomizing nozzle is provided on the liquid outlet of the first channel.

[0010] As an implementable manner, the number of the atomizing nozzles is one or more.

[0011] As an implementable manner, the liquid medium is a liquid working fluid.

[0012] As an implementable manner, the number of the capillary wicks is one or more.

[0013] As an implementable manner, a shell is further included, the capillary core is arranged above the shell, and the liquid outlet of the first channel is arranged above the shell.

[0014] As an implementable method, it further includes a shell, and the shell is also provided with an oil return channel. The oil return channel is arranged below the shell. The liquid medium formed after contacting the capillary core drips to the bottom of the shell and is suitable for entering the oil return chamber through the oil return channel.

[0015] As an implementable manner, the motor is further provided with a second channel, and the second channel is used to cool the medium in the first channel.

[0016] As an implementable manner, a shell is further included, and a second channel is provided on the motor, and the second channel is used to cool the shell.

[0017] In a second aspect, the present invention provides a power assembly including the above-mentioned motor.

[0018] As an implementable manner, it includes an oil return chamber and a pump, wherein the pump is mounted on the housing, a first end of the pump is connected to the oil return chamber, and a second end of the pump is connected to the liquid inlet of the first channel.

[0019] In a third aspect, the present invention provides a vehicle comprising the above-mentioned power assembly.

[0020] In the above solution, the motor includes a medium channel for conveying the liquid medium to the stator.

[0021] The liquefaction device converts gaseous medium into liquid medium. The gaseous medium is formed by vaporizing the liquid medium delivered to the stator. The liquid medium sprayed through the medium channel vaporizes and absorbs heat when it comes into contact with the stator. The vaporized gaseous medium then contacts the liquefaction device, transferring heat to the liquefaction device, thereby improving the heat dissipation efficiency of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 A schematic diagram of the structure of a motor provided in one embodiment of the present utility model;

[0024] Figure 2 for Figure 1 Cross-sectional view at AA in the middle;

[0025] Figure 3 for Figure 2 Partial schematic diagram of point B in the middle;

[0026] Figure 4 A schematic structural diagram of a powertrain provided in one embodiment of the present utility model;

[0027] Figure 5 The present invention is a schematic structural diagram of a vehicle provided in one embodiment of the present invention.

[0028] Description of reference numerals:

[0029] Stator 1, rotor 2, first end cover 3, second end cover 4, housing 5, rotating shaft 6, first bearing 7, second bearing 17, capillary core 8, filter 9, atomizing nozzle 14, motor 10, power assembly 20, vehicle 30. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] like Figure 1-5 As shown, an embodiment of the present invention provides a motor, a powertrain and a vehicle.

[0033] like Figure 1 、 Figure 2 As shown, the motor 10 provided in the embodiment of the present invention includes:

[0034] The medium channel is used to transport the liquid medium to the stator 1.

[0035] The liquefaction device is used to convert the gaseous medium into the liquid medium, wherein the gaseous medium is formed by vaporizing the liquid medium delivered to the stator 1 .

[0036] In some embodiments, the medium channel is used to accommodate the medium, and the medium may be in a liquid or gaseous state. At the same time, the medium channel may also guide the flow of the medium.

[0037] In some embodiments, the medium in the medium channel is a liquid medium, which serves as a heat dissipation medium for the motor 10. The liquid medium is transported to the stator 1 of the motor 10 through the guided transmission function of the medium channel. Because the internal components of the motor 10 have a relatively high temperature when heat dissipation is required, when the lower temperature liquid medium contacts the higher temperature stator 1, the liquid medium absorbs heat and vaporizes into a gaseous medium.

[0038] In some embodiments, the liquid medium is transported to the surface of the stator 1 of the motor 10 through the guided transmission function of the medium channel.

[0039] In some embodiments, the motor 10 includes a liquefaction device, which converts the gaseous medium formed by absorbing heat and vaporizing after coming into contact with the stator 1 with a higher temperature into a liquid medium.

[0040] In some embodiments, as Figure 2 As shown, the motor 10 further includes a rotor 2 , a first end cover 3 , a second end cover 4 , a rotating shaft 6 , a first bearing 7 , and a second bearing 17 .

[0041] like Figure 3 As shown, in some embodiments, the medium channel includes a first channel, the liquid outlet of the first channel is used to transport the liquid medium to the stator 1, and the liquefaction device includes a tubular structure, which is used to convert the gaseous medium into a liquid medium.

[0042] In some embodiments, the medium channel includes a first channel, the first channel includes a channel body, a first channel liquid inlet and a first channel liquid outlet, and the liquid medium flowing into the first channel body through the first channel liquid inlet flows out from the first channel liquid outlet and is transported to the stator 1.

[0043] In some embodiments, the liquefaction device is composed of a tubular structure. The number of tubular structures can be one or more, and the tubular structures can be evenly or unevenly arranged inside the motor 10. The function of the tubular structure is to convert the gaseous medium formed by absorbing heat and vaporizing after contacting the higher temperature stator 1 into a liquid medium.

[0044] In some embodiments, due to the different structural arrangements of the motor 10, the liquid medium flowing out through the liquid outlet of the first channel can be delivered to the stator 1 as well as to the rotor, winding, rotating shaft 6 and other structures. Its function is the same as that in the present application and will not be repeated here.

[0045] In some embodiments, the liquid outlet of the first channel is arranged opposite to the stator 1 so that the liquid medium sprayed through the liquid outlet of the first channel can fall on the stator 1; the tubular structure includes a capillary core 8, which is arranged opposite to the stator 1 so that the gaseous medium after contacting the stator 1 can fall on the capillary core 8.

[0046] In some embodiments, the liquid outlet of the first channel is arranged opposite to the stator 1 so that the liquid medium flowing out of the liquid outlet of the first channel falls on the stator 1 to achieve accurate and rapid cooling of the stator 1 .

[0047] In some embodiments, the tubular structure may be a capillary wick 8 , that is, the tubular structure may be more specifically an elongated tubular structure.

[0048] In some embodiments, because the gaseous medium undergoes a gas-liquid phase transition after absorbing heat from stator 1, its pressure increases due to thermal expansion, and it diffuses from the surface of stator 1 to the surrounding area through convection. Therefore, the capillary wick 8 is positioned relative to the stator 1, allowing the gaseous medium formed after absorbing heat and vaporizing upon contact with the higher temperature stator 1 to quickly and accurately fall onto the capillary wick 8, thereby transferring the heat of the gaseous medium to the capillary wick 8. After the capillary wick 8 absorbs the heat of the gaseous medium, the gaseous medium dissipates the heat and converts it into a liquid medium. The convection diffusion process can also convert some of the thermal energy of the gaseous medium into mechanical energy, playing a positive role in heat dissipation in the motor.

[0049] like Figure 3 As shown, in some embodiments, the motor 10 includes a housing 5 , and the housing 5 is further provided with an atomizing nozzle 14 , which is disposed on the liquid outlet of the first channel.

[0050] In some embodiments, the atomizing nozzle 14 is mounted on the liquid outlet of the first channel. The two can be assembled by screwing, snapping, or splicing. Ultimately, as long as the two are assembled together, they fall within the scope of protection of this application and will not be described in detail here. The function of the atomizing nozzle 14 is to separate the liquid cooling medium flowing out of the liquid outlet of the first channel into a plurality of fine mist droplets. When the small mist droplets come into contact with the stator 1, the efficiency of liquid-to-gas conversion after the droplets absorb heat is higher than that of large droplets. In other words, they can absorb heat from the stator 1 more quickly, thereby improving the heat dissipation efficiency of the motor 10.

[0051] In some embodiments, the number of the atomizing nozzle 14 is one or more.

[0052] In some embodiments, the number of the atomizing nozzles 14 may be consistent with the number of the liquid outlets of the first channel.

[0053] In some embodiments, the liquid medium is a liquid working fluid.

[0054] In some embodiments, the liquid working medium may include but is not limited to refrigerant, water vapor, etc.

[0055] In some embodiments, the number of the capillary wick 8 is one or more.

[0056] In some embodiments, the capillary core 8 can be an independent tubular monomer installed on the motor 10 by assembly, or a slender hole can be directly opened on the motor 10. As long as the shape of the slender hole meets the requirements of the capillary core 8, it can also play the same role.

[0057] In some embodiments, a housing 5 is further included, the capillary wick 8 is disposed above the housing 5, and the liquid outlet of the first channel is disposed above the housing 5. The upper portion of the housing 5 specifically refers to the upper region of the motor 10 when the motor 10 is in normal use.

[0058] In some embodiments, due to the influence of the structural arrangement of the motor 10 , the capillary core 8 and the liquid outlet of the first channel may also be arranged in the middle and lower area of ​​the housing 5 .

[0059] In some embodiments, a shell 5 is further included, and an oil return channel is provided on the shell 5. The oil return channel is provided below the shell 5. The liquid medium formed after contacting the capillary core 8 drips under the action of gravity, and after falling below the shell 5, it is suitable to enter the oil return chamber through the oil return channel.

[0060] In some embodiments, the motor 10 is further provided with a second channel, and the second channel is used to cool the medium in the first channel.

[0061] In some embodiments, a second channel provided on the motor 10 can accommodate coolant, and the second channel is provided close to the first channel for cooling the medium in the first channel.

[0062] In some embodiments, a housing 5 is further included, and a second channel is provided on the motor 10 , and the second channel is used to cool the housing 5 .

[0063] In some embodiments, the second channel may be provided on the housing 5 , and specific implementation methods include but are not limited to: opening a hole on the housing 5 to form the second channel. In this case, the second channel is used to cool the housing 5 .

[0064] In some embodiments, both the first channel and the second channel are arranged on the shell 5. At this time, the liquid cooling medium in the first channel transfers heat to the shell 5, and the shell 5 transfers heat to the coolant in the first channel, thereby achieving heat dissipation of the liquid medium in the first channel and the shell 5.

[0065] In some embodiments, the capillary core 8, the first channel and the second channel are all arranged on the shell 5. At this time, the liquid cooling medium in the first channel and the capillary core 8 simultaneously transfer heat to the shell 5, and the shell 5 then transfers the heat to the coolant in the first channel, thereby achieving heat dissipation for the capillary core 8, the liquid medium in the first channel and the shell 5.

[0066] Second, as Figure 4As shown, the present invention provides a power assembly 20 including the above-mentioned motor 10 .

[0067] In some embodiments, an oil return chamber and a pump are included. The pump is installed on the housing 5 . A first end of the pump is connected to the oil return chamber, and a second end of the pump is connected to the liquid inlet of the first channel.

[0068] In some embodiments, the pump may be a gear pump, a plunger pump, etc. The pump may be arranged on the housing 5 or installed at other locations of the power assembly 20 . The specific installation location may be flexibly set according to the structure of the power assembly 20 .

[0069] In some embodiments, the oil return chamber is used to accommodate the liquid medium flowing out through the oil return channel of the motor 10. The oil return chamber can be set on the housing 5, or it can be a separate component installed on the power assembly 20. The specific installation position can be flexibly set according to the structure of the power assembly 20.

[0070] In some embodiments, the liquid medium flowing out through the oil return channel of the motor 10 flows into the oil return chamber. Under the action of the pump, the liquid medium in the oil return chamber is extracted. The extracted liquid medium flows through the pump and flows into the liquid inlet of the first channel, and then flows into the first channel to form a complete circulation path of the liquid medium.

[0071] In some embodiments, a filter 9 is further included and installed on the housing 5 .

[0072] In some embodiments, the filter 9 is disposed between the oil return chamber and the pump to filter the liquid medium flowing out of the oil return chamber.

[0073] Thirdly, as Figure 5 As shown, the present invention provides a vehicle 30 including the powertrain 20 described above.

[0074] In the vehicle 30 of the embodiment of the present application, the liquid medium sprayed out through the medium channel vaporizes and absorbs heat after contacting the stator 1, and the vaporized gaseous medium transfers heat to the liquefaction device after contacting the liquefaction device, thereby improving the heat dissipation efficiency of the motor 10.

[0075] It should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used above to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0076] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A motor, characterized in that: include: Medium channel, used to transport liquid medium to the stator, The liquefaction device is used to convert the gaseous medium into the liquid medium, wherein the gaseous medium is formed by vaporizing the liquid medium delivered to the stator.

2. The motor according to claim 1, characterized in that The medium channel includes a first channel, a liquid outlet of the first channel is used to transport the liquid medium to the stator, and the liquefaction device includes a tubular structure, and the tubular structure is used to convert the gaseous medium into a liquid medium.

3. The motor according to claim 2, characterized in that The liquid outlet of the first channel is arranged opposite to the stator so that the liquid medium sprayed through the liquid outlet of the first channel can fall on the stator; the tubular structure includes a capillary core, which is arranged opposite to the stator so that the gaseous medium after contacting the stator can fall on the capillary core.

4. The motor according to claim 2, characterized in that It also includes a shell, and an atomizing nozzle is provided on the shell. The atomizing nozzle is provided on the liquid outlet of the first channel.

5. The motor according to claim 4, characterized in that The number of the atomizing nozzles is one or more.

6. The motor according to claim 1, characterized in that The liquid medium is a liquid working fluid.

7. The motor according to claim 3, characterized in that The number of the capillary wicks is one or more.

8. The motor according to claim 3, characterized in that It also includes a shell, the capillary core is arranged above the shell, and the liquid outlet of the first channel is arranged above the shell.

9. The motor according to claim 3, characterized in that It also includes a shell, which is provided with an oil return channel. The oil return channel is provided below the shell. The liquid medium formed after contacting the capillary core drips below the shell and is suitable for entering the oil return chamber through the oil return channel.

10. The motor according to claim 2, characterized in that The motor is further provided with a second channel, and the second channel is used to cool the medium in the first channel.

11. The motor according to claim 1, characterized in that It also includes a shell, and the motor is also provided with a second channel, and the second channel is used to cool the shell.

12. A powertrain, characterized in that: A motor comprising any one of claims 1-11.

13. The powertrain according to claim 12, characterized in that: The pump comprises an oil return chamber and a pump, wherein the pump is mounted on the housing, a first end of the pump is connected to the oil return chamber, and a second end of the pump is connected to the liquid inlet of the first channel.

14. A vehicle, characterized in that: Including the powertrain according to claim 12 or 13.

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