Generator assembly and vehicle
By adopting a dual oil circuit circulation structure and radial tangential nozzle design in the generator assembly, the problem of low motor cooling efficiency is solved, achieving efficient cooling and stable operation, and extending the service life of the generator.
Patent Information
- Application Number
- CN202520512799.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-20
AI Technical Summary
The existing motor cooling efficiency is not high, resulting in poor cooling of the stator, rotor and magnets, which affects the motor performance and lifespan.
It adopts a dual oil circulation structure, including a first branch and a second branch, to cool the middle and outer ring of the generator through a central nozzle and an outer peripheral nozzle. Combined with radial and tangential nozzle design, it optimizes the flow and distribution of cooling oil.
It improves the cooling effect and heat dissipation efficiency of the generator, extends its service life, and reduces failures caused by overheating.
Smart Images
Figure CN223967736U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cooling structures, and in particular to a generator assembly and vehicle. Background Technology
[0002] Electric motors generate a significant amount of heat during operation, especially in critical components such as the stator, rotor, and magnets. Excessive temperatures in these parts can severely impact motor performance and lifespan. Currently, the main problem with motor oil cooling systems is their low cooling efficiency, resulting in inadequate cooling of the stator, rotor, and magnets. Utility Model Content
[0003] The purpose of this application is to provide a generator assembly and vehicle to improve the cooling efficiency and cooling effect of key components of the generator, such as the stator, rotor, and magnets.
[0004] This application provides a generator assembly, including a mounting housing, a generator mechanism, and an oil cooler. The mounting housing has a cooling oil passage, which includes a first branch and a second branch.
[0005] The oil outlet of the oil cooler is connected to the first branch; the end of the first branch is provided with a central spray hole connected to the first branch, and the central spray hole faces the middle of the power generation mechanism;
[0006] The oil outlet of the oil cooler is connected to the second branch; the mounting shell is provided with an outer peripheral nozzle, which faces the outer ring of the power generation mechanism; the second branch is connected to the outer peripheral nozzle.
[0007] In the above technical solution, the second branch is further provided with a manifold oil pool at its end; the number of peripheral nozzles is multiple, and all of the peripheral nozzles are connected to the manifold oil pool.
[0008] In the above technical solution, further, the plurality of peripheral nozzles include a first nozzle and / or a second nozzle;
[0009] The axis of the first nozzle is located radially in the power generation mechanism; the axis of the second nozzle is located tangentially in the power generation mechanism.
[0010] In the above technical solution, when the plurality of peripheral nozzles include a first nozzle and a second nozzle, the first nozzle and the second nozzle are spaced apart along the thickness direction of the power generation mechanism.
[0011] In the above technical solution, the mounting shell is further provided with a manifold, which is connected to a plurality of peripheral spray holes;
[0012] The manifold opening is fitted with a cover plate, and the cover plate and the manifold together form the manifold oil pool.
[0013] The above technical solution further includes an oil pump;
[0014] The housing of the oil pump is connected to the first branch, and the spindle of the oil pump is provided with a hollow cavity and a central nozzle connected to the hollow cavity.
[0015] In the above technical solution, the cooling oil circuit further includes a main oil circuit; the oil outlet of the main oil circuit is connected to the oil inlet of the oil cooler, and the oil pump is used to pump the cooling oil in the main oil circuit to the oil cooler.
[0016] In the above technical solution, the inner cavity of the mounting shell further includes a main body and an oil storage part;
[0017] The power generation mechanism is installed on the main body, and the oil storage section is connected to the main body to contain cooling oil;
[0018] The oil inlet of the main oil circuit is connected to the oil storage section, and a filter device is installed at the oil inlet of the main oil circuit.
[0019] In the above technical solution, the mounting shell is further provided with an oil filling hole, which communicates with the inner cavity of the mounting shell; a plug can be detachably installed at the oil filling hole.
[0020] This application also provides a vehicle including the generator assembly described above.
[0021] Compared with the prior art, the beneficial effects of this application are as follows:
[0022] The generator assembly provided in this application makes reasonable use of the mounting shell structure to set up the cooling oil circuit. It adopts a dual oil circuit circulation structure with the first branch and the second branch, which can cool down the generator components from the middle and the outer ring, improve the cooling effect of the generator mechanism, and has high heat dissipation efficiency and high reliability. This helps to extend the service life of the generator and reduce failures caused by overheating.
[0023] This application also provides a vehicle, including the generator assembly described in the above scheme. Based on the above analysis, it is clear that the vehicle also possesses the aforementioned beneficial effects, which will not be elaborated upon further here. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0025] Figure 1 This is a first structural schematic diagram of the generator assembly provided in this application;
[0026] Figure 2 This is a second structural schematic diagram of the generator assembly provided in this application;
[0027] Figure 3 A third structural schematic diagram of the generator assembly provided in this application;
[0028] Figure 4 This is a structural schematic diagram of the mounting shell provided in this application.
[0029] In the diagram: 101-Mounting housing; 102-Power generation mechanism; 103-Oil cooler; 104-First branch; 105-Second branch; 106-Manifold; 107-Cover plate; 108-First nozzle; 109-Second nozzle; 110-Oil pump; 111-Main oil circuit; 112-Main body; 113-Oil storage unit; 114-Filter device. Detailed Implementation
[0030] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. 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.
[0031] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0033] Example 1
[0034] See Figures 1 to 4 As shown, the generator assembly provided in this application includes a mounting housing 101, a generator mechanism 102, and an oil cooler 103. The generator mechanism 102 includes a rotor assembly and a stator assembly, which are located within the inner cavity of the mounting housing 101 to form the generator's power generation components. The oil cooler 103 is mounted on the outside of the mounting housing 101. The inner cavity of the mounting housing 101 contains cooling oil, and the mounting housing 101 has cooling oil passages through which the cooling oil flows to the oil cooler 103. The cooling oil exchanges heat with water in the oil cooler 103, and the cooled oil then re-enters the inner cavity of the mounting housing 101. The copper wires and iron core of the generator mechanism 102 are immersed in the cooling oil, which continuously carries away the heat generated by the generator mechanism 102, allowing the generator to maintain optimal operating conditions.
[0035] The cooling oil circuit includes a first branch 104 and a second branch 105; the oil outlet of the oil cooler 103 is connected to the first branch 104; the end of the first branch 104 is provided with a central nozzle that is connected to the first branch 104 and faces the middle of the generator mechanism 102; the first branch 104 is connected to the central nozzle; the oil outlet of the oil cooler 103 is connected to the second branch 105; the mounting housing 101 is provided with an outer peripheral nozzle that faces the outer ring of the generator mechanism 102; the second branch 105 is connected to the outer peripheral nozzle.
[0036] Specifically, the cooling oil after being cooled by the oil cooler 103 has two flow paths.
[0037] Path 1: The first branch 104 is opened in the mounting housing 101, and the first branch 104 is provided with a central nozzle facing the middle of the generator mechanism 102. The cooling oil flowing out of the oil cooler 103 can flow through the first branch 104 to the central nozzle and be sprayed out from the central nozzle. The cooling oil can cool down the middle of the generator mechanism 102, ensuring that the cooling oil can carry away more heat when entering the generator.
[0038] Path 2: A second branch 105 is provided in the mounting housing 101, and the second branch 105 is provided with peripheral nozzles facing the outer ring of the power generation mechanism 102. Cooling oil flowing from the other flow path of the oil cooler 103 can flow through the second branch 105 to the peripheral nozzles and be sprayed out from the peripheral nozzles. The cooling oil can cool the outer ring of the power generation mechanism 102. The combined internal and external design ensures comprehensive heat dissipation of the power generation mechanism 102.
[0039] The generator assembly provided in this application makes reasonable use of the mounting housing 101 structure to set up the cooling oil circuit. It adopts a dual oil circuit circulation structure with the first branch 104 and the second branch 105, which can cool the generator components from the middle and outer ring, improve the cooling effect of the generator mechanism 102, has high heat dissipation efficiency and strong reliability, and helps to extend the service life of the generator and reduce failures caused by overheating.
[0040] In an optional embodiment, a manifold oil pool is provided at the end of the second branch 105; there are multiple peripheral nozzles, and all of the peripheral nozzles are connected to the manifold oil pool. Cooling oil can be collected in the manifold oil pool along the second branch 105 without affecting the flow rate of the cooling oil. Furthermore, the peripheral nozzles are relatively small, which increases the flow rate of the cooling oil in the manifold oil pool when it is ejected from the peripheral nozzles, allowing the cooling oil to cover a larger area of the power generation mechanism 102.
[0041] Optionally, the mounting housing 101 has a manifold 106, which communicates with multiple peripheral spray holes; a cover plate 107 is installed at the opening of the manifold 106, and the cover plate 107 and the manifold 106 enclose a manifold oil pool. Specifically, the cover plate 107 and the mounting housing 101 can be connected by friction welding to form a manifold oil pool.
[0042] Furthermore, the design of multiple peripheral nozzles allows the cooling oil to be distributed more evenly on the outer ring of the power generation mechanism 102, avoiding the problem of localized overheating. Each nozzle can spray cooling oil, thereby increasing the contact area with the outer ring of the power generation mechanism 102 and improving cooling efficiency. Even if one nozzle becomes blocked or malfunctions, the other nozzles can continue to operate, ensuring the continuous operation of the cooling system.
[0043] In an optional embodiment, the plurality of peripheral nozzles include a first nozzle 108 and / or a second nozzle 109; the bore axis of the first nozzle 108 is located in the radial direction of the power generation mechanism 102; and the bore axis of the second nozzle 109 is located in the tangential direction of the power generation mechanism 102.
[0044] In this embodiment, when cooling oil is sprayed from the outer peripheral nozzle, since the hole axis of the first nozzle 108 is located in the radial direction of the power generation mechanism 102, the flow direction of the cooling oil sprayed from the first nozzle 108 is directly directed towards the outer ring of the power generation mechanism 102 and is consistent with the radial direction of the power generation mechanism 102. The cooling oil can directly impact the outer ring of the power generation mechanism 102, forming a strong convective heat transfer, thereby effectively removing heat and quickly reducing the temperature of the power generation mechanism 102 and improving the cooling efficiency.
[0045] When cooling oil is ejected from the outer peripheral nozzle, since the axis of the second nozzle 109 is located tangentially to the power generation mechanism 102, the flow direction of the cooling oil ejected from the second nozzle 109 is tangential to the outer ring of the power generation mechanism 102, forming a tangential flow. The tangentially ejected cooling oil can form a rotating cooling oil film around the outer ring of the power generation mechanism 102. Through the rotation and turbulence effect of the oil film, the heat exchange area and heat exchange efficiency with the power generation mechanism 102 are increased, thereby enhancing the fluidity of the cooling oil around the power generation mechanism 102 and achieving uniform cooling of the power generation mechanism 102.
[0046] By combining the first nozzle 108 and the second nozzle 109, more comprehensive and efficient cooling of the outer ring of the generator assembly 102 can be achieved. The radially injected first nozzle 108 can quickly remove a large amount of heat, while the tangentially injected second nozzle 109 can enhance the flow of the cooling oil, further improving cooling efficiency. This design not only optimizes the utilization of cooling oil but also ensures the stable operation of the generator assembly in high-temperature environments.
[0047] Furthermore, the specific number and location of the multiple peripheral nozzles can be flexibly adjusted according to the actual needs and structural characteristics of the generator assembly to achieve the best cooling effect. Optionally, when the multiple peripheral nozzles include a first nozzle 108 and a second nozzle 109, the first nozzle 108 and the second nozzle 109 are spaced apart along the thickness direction of the generator mechanism 102. This can optimize the flow and distribution of the cooling oil, so that the cooling oil can effectively cover the outer surface of the generator mechanism 102, avoiding the formation of local overheated or undercooled areas on the surface of the generator mechanism 102, thereby ensuring a more uniform cooling effect on the generator mechanism 102.
[0048] Example 2
[0049] The generator assembly in this second embodiment is an improvement based on the above embodiments. The technical content disclosed in the above embodiments will not be described again, and the content disclosed in the above embodiments also belongs to the content disclosed in this second embodiment.
[0050] See Figure 4As shown, in an optional embodiment, the generator assembly further includes an oil pump 110; the housing of the oil pump 110 is connected to the first branch 104, and the spindle of the oil pump 110 is provided with a hollow cavity and a central nozzle connected to the hollow cavity.
[0051] In this embodiment, the oil pump 110 is used to pump the cooling oil in the first branch 104 to the central nozzle to dissipate heat from the center of the generator mechanism 102. Specifically, the cooling oil in the first branch 104 enters the housing of the oil pump 110. The spindle of the oil pump 110 is provided with a hollow cavity to store the cooling oil, and the spindle of the oil pump 110 is also provided with a central nozzle facing the center of the generator mechanism 102. Under the action of the oil pump 110, the cooling oil sprayed from the central nozzle can cool the inner ring of the stator assembly. The flow rate of the cooling oil is greater, thereby ensuring that the cooling oil can carry away more heat when entering the generator.
[0052] In an optional embodiment, the cooling oil circuit further includes a main oil circuit 111; the oil outlet of the main oil circuit 111 is connected to the oil inlet of the oil cooler 103, and the oil pump 110 is used to pump the cooling oil in the main oil circuit 111 to the oil cooler 103. Specifically, the cooling oil in the main oil circuit 111 is drawn into the housing of the oil pump 110, and after being squeezed by the rotation of the inner and outer rotors of the oil pump 110, the cooling oil can quickly reach the oil cooler 103 for cooling.
[0053] In an optional embodiment, the inner cavity of the mounting housing 101 includes a main body 112 and an oil reservoir 113. The power generation mechanism 102 is mounted on the main body 112, which contains a large amount of cooling oil, thus immersing the power generation mechanism 102 in the oil. The cooling oil serves to cool and lubricate the mechanism. The oil reservoir 113 has a volume of 52.4 cm³. 3 The oil storage section 113 is connected to the main body 112 so that the oil storage section 113 is also filled with cooling oil. The oil inlet of the main oil passage 111 is connected to the oil storage section 113, and a filter device 114 is installed at the oil inlet of the main oil passage 111. That is, the setting of the oil storage section 113 also provides installation space for the filter device 114. After the cooling oil in the inner cavity of the mounting shell 101 absorbs heat and rises in temperature, the cooling oil can be filtered by the filter device 114 and then reach the oil cooler 103 for cooling through the main oil passage 111. Then, it flows back to the inner cavity of the mounting shell 101 from the central spray hole and the outer peripheral spray hole, respectively, so as to realize the circulation cooling of the cooling oil.
[0054] In an optional embodiment, the mounting shell 101 has an oil filling hole that communicates with the inner cavity of the mounting shell 101; a plug is detachably installed at the oil filling hole. When adding cooling oil to the inner cavity of the mounting shell 101, the plug can be removed, and cooling oil can be filled into the mounting shell 101 from the outside through the oil filling hole. After filling, the plug is installed at the oil filling hole to seal it.
[0055] Example 3
[0056] This application provides a vehicle in embodiment three, which includes the generator assembly of any of the above embodiments, and thus has all the beneficial technical effects of the generator assembly of any of the above embodiments, which will not be repeated here.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not 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; and 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. In addition, those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are meant to be within the scope of this application and form different embodiments.
Claims
1. A generator assembly, comprising a mounting housing, a generator mechanism, and an oil cooler, characterized in that, The mounting housing is provided with a cooling oil passage, which includes a first branch and a second branch. The oil outlet of the oil cooler is connected to the first branch; the end of the first branch is provided with a central spray hole connected to the first branch, and the central spray hole faces the middle of the power generation mechanism; The oil outlet of the oil cooler is connected to the second branch; the mounting shell is provided with an outer peripheral nozzle, which faces the outer ring of the power generation mechanism; the second branch is connected to the outer peripheral nozzle.
2. The generator assembly according to claim 1, characterized in that, The second branch is provided with a manifold oil pool at its end; there are multiple peripheral nozzles, and all of the multiple peripheral nozzles are connected to the manifold oil pool.
3. The generator assembly according to claim 2, characterized in that, The plurality of peripheral nozzles include a first nozzle and / or a second nozzle; The axis of the first nozzle is located radially in the power generation mechanism; the axis of the second nozzle is located tangentially in the power generation mechanism.
4. The generator assembly according to claim 2, characterized in that, When the plurality of peripheral nozzles include a first nozzle and a second nozzle, the first nozzle and the second nozzle are spaced apart along the thickness direction of the power generation mechanism.
5. The generator assembly according to claim 2, characterized in that, The mounting shell has a manifold, which is connected to a plurality of peripheral nozzles; The manifold opening is fitted with a cover plate, and the cover plate and the manifold together form the manifold oil pool.
6. The generator assembly according to claim 1, characterized in that, It also includes an oil pump; The housing of the oil pump is connected to the first branch, and the spindle of the oil pump is provided with a hollow cavity and a central nozzle connected to the hollow cavity.
7. The generator assembly according to claim 6, characterized in that, The cooling oil circuit also includes a main oil circuit; the oil outlet of the main oil circuit is connected to the oil inlet of the oil cooler, and the oil pump is used to pump the cooling oil in the main oil circuit to the oil cooler.
8. The generator assembly according to claim 7, characterized in that, The inner cavity of the mounting housing includes a main body and an oil reservoir; The power generation mechanism is installed on the main body, and the oil storage section is connected to the main body to contain cooling oil; The oil inlet of the main oil circuit is connected to the oil storage section, and a filter device is installed at the oil inlet of the main oil circuit.
9. The generator assembly according to claim 1, characterized in that, The mounting shell has an oil filling hole that communicates with the inner cavity of the mounting shell; a plug can be detachably installed at the oil filling hole.
10. A vehicle, characterized in that, Includes the generator assembly as described in any one of claims 1 to 9.