Oil injection ring, motor and vehicle
By designing an oil injection ring with an oil guide cavity and multiple oil injection holes, the problem of poor cooling effect of the existing oil injection ring is solved, and a more efficient motor heat dissipation effect is achieved.
Patent Information
- Application Number
- CN202510035336.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-05-02
AI Technical Summary
The existing oil injection ring structure leads to a small coverage of the motor cooling oil and poor heat dissipation effect.
A fuel injection ring is designed, including a ring body, an oil barrier bar and an oil conduction chamber, and a plurality of first and second fuel injection holes are provided, the first fuel injection hole is used for top injection, and the second fuel injection hole is used for side wall injection, which communicates through the oil conduction chamber and adjusts the cross-sectional area of the fuel injection hole to improve the cooling effect.
By increasing the coverage area of cooling oil on the top of the motor rotor, the heat dissipation effect of the motor is improved and adapted to the heat dissipation needs at different powers.
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Figure CN119921512A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of vehicle technology, and in particular to an oil injection ring, a motor and a vehicle. Background Art
[0002] With the rapid development of the new energy vehicle industry, the power density and efficiency requirements of the vehicle's electric drive system are becoming higher and higher, and as a result, the cooling requirements for the motor are becoming more and more stringent. The oil cooling solution has gradually replaced the air cooling and water cooling solutions due to its better cooling effect.
[0003] In the related art, the stator end windings of the motor are usually cooled by spraying oil through an oil spray ring. The cooling effect of the stator end windings depends on the coverage rate of the end windings by the oil sprayed by the oil spray ring. Currently, most oil spray rings adopt a circumferential opening structure. The oil spray hole in this structure is a single hole, and the coverage range of the sprayed oil is small, which has a poor heat dissipation effect on the motor. Summary of the invention
[0004] In view of this, the present disclosure provides an oil injection ring, a motor and a vehicle, which can improve the heat dissipation effect of the motor.
[0005] Specifically, the following technical solutions are included:
[0006] In a first aspect, an embodiment of the present disclosure provides an oil injection ring, comprising a ring body and an oil retaining rib, wherein the oil retaining rib is connected to an outer peripheral side surface of the ring body, and the oil retaining rib is divided on the outer peripheral side surface of the ring body to form an oil guide cavity;
[0007] The ring body is provided with a plurality of first oil spray holes and a plurality of second oil spray holes, the oil guide cavity is connected with the first oil spray holes and the second oil spray holes, the cross-sectional area of the first oil spray holes is larger than the cross-sectional area of the second oil spray holes, the first oil spray holes are used to transport oil to the top of the motor rotor, and the second oil spray holes are used to transport oil to the side wall of the motor rotor.
[0008] In a possible implementation, the oil guide cavity includes a plurality of first cavities and second cavities, each of the first oil injection holes is communicated with one of the first cavities, and each of the first cavities is communicated with the second cavity.
[0009] In a possible implementation, the oil injection ring further includes an adjusting member, the adjusting member is located in the first cavity, the first oil injection hole is a waist-shaped hole, and the adjusting member is configured to adjust the cross-sectional area of the portion connecting the first oil injection hole and the first cavity.
[0010] In a possible implementation, the adjusting member includes a baffle and a spring, the baffle divides the first cavity into a first sub-cavity and a second sub-cavity, the spring is located in the second sub-cavity, a convex portion is provided on the edge of the ring body, and two ends of the spring are respectively connected to the baffle and the convex portion;
[0011] The oil baffle is provided with a through hole, the through hole communicates with the first sub-cavity and the second cavity, and the baffle is configured to compress the spring based on the pressure in the first sub-cavity.
[0012] In a possible implementation, there are two springs, two ends of the baffle are respectively connected to the two springs, and the first oil injection hole is located between the two springs.
[0013] In a possible implementation, the oil guide cavity further includes a third cavity, and the third cavity is respectively connected to the plurality of second oil injection holes and the second cavity.
[0014] In a second aspect, an embodiment of the present disclosure further provides a motor, comprising a housing, a stator, an oil injection ring as described in any one of the first aspects above, and a rotor, wherein the oil injection ring is sleeved on one end of the stator, the rotor is located inside the stator, and the outer peripheral side surface of the ring body is sealed and connected to the inner surface of the housing.
[0015] In a possible implementation, the motor includes two oil injection rings, and the two oil injection rings are respectively sleeved at opposite ends of the stator.
[0016] In a possible implementation, the oil injection ring further includes a sealing gasket, which is located between an end surface on one side of the ring body and the stator, and between an end surface on the other side of the ring body and the housing.
[0017] In a third aspect, an embodiment of the present disclosure provides a vehicle, comprising the motor as described in any one of the second aspects above.
[0018] The beneficial effects of the technical solution provided by the embodiments of the present disclosure include at least:
[0019] In the oil spray ring provided in the present invention, the first oil spray hole is arranged at the top of the motor rotor, and the second oil spray hole is arranged on the side of the motor rotor. The cooling oil can enter the oil guide cavity and be sprayed out through the first oil spray hole and the second oil spray hole. The amount of oil sprayed from the first oil spray hole is greater than the amount of oil sprayed from the second oil spray hole, so that more cooling oil is sprayed on the top of the motor rotor, which increases the contact area of the cooling oil on the top of the motor rotor, which is beneficial to improving the heat dissipation effect of the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0021] Figure 1 A schematic diagram of an oil injection ring provided in an embodiment of the present disclosure;
[0022] Figure 2 A side view of an oil injection ring provided for an embodiment of the present disclosure;
[0023] Figure 3 A partial schematic diagram of an oil injection ring provided in an embodiment of the present disclosure;
[0024] Figure 4 A cross-sectional view of a motor provided by an embodiment of the present disclosure;
[0025] Figure 5 for Figure 4 A partial cross-sectional view of the motor shown in area B;
[0026] Figure 6 A schematic diagram of an oil injection ring and a stator of a motor provided in an embodiment of the present disclosure.
[0027] The reference numerals in the figures represent respectively:
[0028] 1-ring body; 2-oil retaining rib; 3-oil guide cavity; 4-adjusting part; 5-sealing ring;
[0029] 101-first oil injection hole; 102-second oil injection hole; 104-convex part; 201-through hole; 202-break; 301-first cavity; 302-second cavity; 303-third cavity; 401-baffle; 402-spring; 100-housing; 200-stator; 300-injection ring; 400-rotor; 210-oil inlet hole;
[0030] 3031-first sub-cavity; 3032-second sub-cavity.
[0031] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0033] In a first aspect, an embodiment of the present disclosure provides an oil injection ring. Figure 1 Schematic diagram of the fuel injection ring provided in the embodiment of the present disclosure. Figure 1 As shown, the oil injection ring provided in the embodiment of the present disclosure includes a ring body 1 and an oil retaining rib 2, the oil retaining rib 2 is connected to the outer peripheral side of the ring body 1, and the oil retaining rib 2 is divided to form an oil guide cavity 3 on the outer peripheral side of the ring body 1. A plurality of first oil injection holes 101 and a plurality of second oil injection holes 102 are arranged on the ring body 1, and the oil guide cavity 3 is connected to the first oil injection hole 101 and the second oil injection hole 102, the cross-sectional area of the first oil injection hole 101 is larger than the cross-sectional area of the second oil injection hole 102, the first oil injection hole 101 is used to transport oil to the top of the motor rotor, and the second oil injection hole 102 is used to transport oil to the side wall of the motor rotor.
[0034] In the oil spray ring provided in the present invention, the first oil spray hole 101 is arranged at the top of the motor rotor, and the second oil spray hole 102 is arranged on the side of the motor rotor. The cooling oil can enter the oil guide cavity 3 and be sprayed out through the first oil spray hole 101 and the second oil spray hole 102. Since the cross-sectional area of the first oil spray hole 101 is larger than the cross-sectional area of the second oil spray hole 102, the amount of oil sprayed from the first oil spray hole 101 is greater than the amount of oil sprayed from the second oil spray hole 102, so that more cooling oil is sprayed at the top of the motor rotor, which increases the contact area of the cooling oil on the top of the motor rotor, which is beneficial to improving the heat dissipation effect of the motor.
[0035] In order to make the technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.
[0036] like Figure 1As shown, the oil spray ring provided by the embodiment of the present disclosure includes a ring body 1 and an oil retaining rib 2, the oil retaining rib 2 is connected to the outer peripheral side of the ring body 1, the inner peripheral side of the ring body 1 faces the rotor of the motor, and the cooling oil flows from the outer peripheral side of the ring body 1 to one side of the inner peripheral side, thereby dissipating the heat of the rotor of the motor. A plurality of first oil spray holes 101 and a plurality of second oil spray holes 102 are arranged on the ring body 1, and the oil retaining rib 2 divides a plurality of oil guide chambers 3 on the outer peripheral side of the ring body 1, and the oil guide chambers 3 are respectively connected to the plurality of first oil spray holes 101 and the plurality of second oil spray holes 102, and the end of the oil retaining rib 2 away from the outer peripheral side of the ring body 1 can cooperate with the housing of the motor and form a closed oil guide chamber 3. After being installed on the motor, the first oil spray hole 101 is located at the top of the rotor, and the second oil spray hole 102 is located at the side and bottom of the rotor. The first oil spray hole 101 is used to spray oil from the top of the rotor, and the second oil spray hole 102 is used to spray oil from the side and bottom of the rotor. Moreover, the cross-sectional area of the first oil injection hole 101 is larger than the cross-sectional area of the second oil injection hole 102, where the cross section refers to the cross section in the extending direction perpendicular to the first oil injection hole 101 or the second oil injection hole 102. For example, if both the first oil injection hole 101 and the second oil injection hole 102 are circular holes, the diameter of the first oil injection hole 101 is larger than the diameter of the second oil injection hole 102. Since the cross-sectional area of the first oil injection hole 101 is larger than the cross-sectional area of the second oil injection hole 102, more cooling oil can be sprayed from the first oil injection hole 101 to the top of the rotor, thereby increasing the coverage area of the cooling oil on the rotor, which is beneficial to improving the heat dissipation effect of the motor.
[0037] In some embodiments of the present disclosure, Figure 1 As shown, one side edge of the ring body 1 abuts against the stator of the motor, and the cooling oil is delivered to the oil guide cavity 3 through the oil pump and the stator.
[0038] In some embodiments of the present disclosure, see Figure 1 The oil guide cavity 3 includes a plurality of first cavities 301 and a second cavity 302. Each first oil injection hole 101 is connected to a first cavity 301, each first cavity 301 is connected to the second cavity 302, and the second cavity 302 is connected to the second oil injection hole 102. The cooling oil first flows into the second cavity 302, and then flows into the plurality of first cavities 301 through the second cavity 302. The plurality of first cavities 301 are all arranged at the top of the rotor, and the plurality of first cavities 301 are arranged adjacent to each other. The adjacent first cavities 301 are separated by the oil retaining ribs 2, and the center angle of the ring body 1 formed by the line connecting the edge of the outer peripheral side of the ring body 1 and the center of the ring body 1 is 110°-130°.
[0039] Specifically, the oil-bearing rib 2 extends partially along the radial direction of the ring body 1 and partially along the circumferential direction of the ring body 1. The multiple oil-bearing ribs 2 extending along the radial direction of the ring body 1 are parallel to each other, and the ends of the multiple oil-bearing ribs 2 extending along the radial direction of the ring body 1 are connected to the oil-bearing ribs 2 extending along the circumferential direction of the ring body 1, thereby surrounding multiple first cavities 301, and the portion between the oil-bearing rib 2 extending along the circumferential direction of the ring body 1 and the side edge of the ring body 1 is the second cavity 302.
[0040] Figure 2 A side view of an oil injection ring provided in an embodiment of the present disclosure. In some embodiments of the present disclosure, such as Figure 2 As shown, the oil injection ring also includes an adjusting member 4, which is located in the first cavity 301. The first oil injection hole 101 is a waist-shaped hole, and the adjusting member 4 is configured to adjust the cross-sectional area of the portion where the first oil injection hole 101 is connected to the first cavity 301. The adjusting member 4 can adjust the amount of oil injection from the first oil injection hole 101, thereby adjusting the cooling effect on the motor. When the motor is running at a high power, the cross-sectional area of the portion where the first oil injection hole 101 is connected to the first cavity 301 is large, thereby having a good heat dissipation effect on the motor. When the motor is running at a low power, the cross-sectional area of the portion where the first oil injection hole 101 is connected to the first cavity 301 is small, thereby reducing the load of the oil pump while meeting the motor temperature requirement.
[0041] It should be noted that see Figure 2 The second fuel injection hole 102 is a circular hole, and the diameter of the second fuel injection hole 102 is not greater than the minimum hole diameter of the first fuel injection hole 101.
[0042] Figure 3 A partial schematic diagram of an oil injection ring provided in an embodiment of the present disclosure. In some embodiments of the present disclosure, such as Figure 3 As shown, the regulating member 4 includes a baffle 401 and a spring 402. The baffle 401 divides the first cavity 301 into a first sub-cavity 3011 and a second sub-cavity 3012. The first sub-cavity 3011 and the second sub-cavity 3012 are connected only through the first oil injection hole 101. The spring 402 is located in the second sub-cavity 3012. The edge of the ring body 1 is provided with a convex portion 104. The two ends of the spring 402 are respectively connected to the baffle 401 and the convex portion 104. The oil retaining rib 2 is provided with a through hole 201. The through hole 201 connects the first sub-cavity 3011 and the second cavity 302. The baffle 401 is configured to compress the spring 402 based on the pressure in the first sub-cavity 3011.
[0043] It should be noted that the spring 402 is in a pre-compression state, that is, when there is no oil in the first cavity 301, the baffle 401 is squeezed by the spring 402 until it is against the oil retaining rib 2. After the oil enters the second cavity 302, it can enter the first sub-cavity 3011 through the through hole 201, and spray oil through the part of the first oil spray hole 101 that is connected to the first sub-cavity 3011. As the oil pressure in the first sub-cavity 3011 continues to increase, the pressure of the baffle 401 on the spring 402 gradually increases, and the spring 402 is compressed shorter and shorter, that is, the volume of the first sub-cavity 3011 gradually increases, and the volume of the second sub-cavity 3012 gradually decreases. At this time, the cross-sectional area of the part of the first oil spray hole 101 located in the first sub-cavity 3011 gradually increases, and the cross-sectional area of the part of the first oil spray hole 101 located in the second sub-cavity 3012 gradually decreases, so that more oil is sprayed out from the first oil spray hole 101 to improve the cooling effect on the motor rotor.
[0044] It should be noted that the angle between the length direction of the waist-shaped first fuel injection hole 101 and the compression direction of the spring 402 is 0 to ±45°, and the moving range of the baffle 401 is the distance between the two ends of the first fuel injection hole 101. The length directions of multiple first fuel injection holes 101 may be the same or different. For example, the angle between the length direction of one first fuel injection hole 101 and the baffle 401 is 45°, and the angle between the length direction of another first fuel injection hole 101 and the baffle 401 is -45°. The embodiments of the present disclosure are not specifically limited here.
[0045] Alternatively, see Figure 3 There are two springs 402, and both ends of the baffle 401 are connected to the two springs 402 respectively. The first oil injection hole 101 is located between the two springs 402. The length direction of the baffle 401 is the circumferential direction of the ring body 1. The baffle 401 is stuck between two adjacent oil retaining ribs 2 extending radially along the ring body 1. The structure in which the two springs 402 connect the baffle 401 can prevent the baffle 401 from being skewed or stuck between the two oil retaining ribs 2, thereby improving the stability and reliability of the adjusting member 4. Specifically, the two ends of the baffle 401 located on one side of the second sub-cavity 3012 are respectively provided with receiving grooves, and one end of the two springs 401 is respectively located in the two receiving grooves and fixedly connected to the baffle 401.
[0046] In some embodiments of the present disclosure, Figure 1As shown, the oil guide cavity 3 also includes a third cavity 303, and the third cavity 303 is connected with the plurality of second oil injection holes 102 and the second cavity 302 respectively. The third cavity 303 is formed by the oil retaining rib 2, and the oil retaining rib 2 located on the side close to the convex portion 104 is provided with a plurality of slits 202, and the third cavity 303 is connected with the second cavity 302 through a plurality of slits. Part of the oil entering the second cavity 302 enters the first cavity 301, and the other part enters the third cavity 303, and the oil in the third cavity 303 is sprayed out through the second oil injection hole 102, thereby spray cooling the side and bottom of the motor rotor.
[0047] In summary, in the oil injection ring provided by the embodiment of the present disclosure, the first oil injection hole 101 is arranged at the top of the motor rotor, and the second oil injection hole 102 is arranged on the side of the motor rotor. The cooling oil can enter the oil guide cavity 3 and be sprayed out through the first oil injection hole 101 and the second oil injection hole 102. Since the cross-sectional area of the first oil injection hole 101 is larger than the cross-sectional area of the second oil injection hole 102, the amount of oil sprayed out of the first oil injection hole 101 is greater than the amount of oil sprayed out of the second oil injection hole 102, so that more cooling oil is sprayed out at the top of the motor rotor, which increases the contact area of the cooling oil on the top of the motor rotor, which is beneficial to improving the heat dissipation effect of the motor. Moreover, the cross-sectional area of the portion where the first oil injection hole 101 communicates with the oil guide cavity 3 can be adjusted based on the pressure in the first sub-cavity 3011, thereby adapting to various scenarios of motor operation and meeting the heat dissipation requirements of the motor at different powers.
[0048] In a second aspect, the present disclosure also provides a motor, Figure 4 A cross-sectional view of a motor provided by an embodiment of the present disclosure. Figure 4 As shown, the motor comprises a housing 100, a stator 200, a rotor 400 and an oil injection ring 300 involved in any one of the embodiments of the first aspect. The oil injection ring 300 is sleeved on one end of the stator 200, the rotor 400 is located inside the stator 200, and the outer peripheral side surface of the ring body 1 is sealed and connected to the inner surface of the housing 100.
[0049] In the motor provided by the embodiment of the present disclosure, the first oil spray hole 101 is arranged at the top of the rotor 400, and the second oil spray hole 102 is arranged on the side of the rotor 400. The cooling oil can enter the oil guide cavity 3 and be sprayed out through the first oil spray hole 101 and the second oil spray hole 102. Since the cross-sectional area of the first oil spray hole 101 is larger than the cross-sectional area of the second oil spray hole 102, the amount of oil sprayed from the first oil spray hole 101 is greater than the amount of oil sprayed from the second oil spray hole 102, so that more cooling oil is sprayed at the top of the rotor 400, thereby increasing the contact area of the cooling oil on the top of the rotor 400, which is beneficial to improving the heat dissipation effect of the motor.
[0050] In some embodiments of the present disclosure, Figure 4As shown, the motor includes two oil injection rings 300, which are respectively sleeved at opposite ends of the stator 200. The two oil injection rings 300 can dissipate heat from opposite ends of the rotor 400 to improve the overall heat dissipation effect of the motor.
[0051] Figure 5 for Figure 4 The motor is a partial cross-sectional view of the B region. In some embodiments of the present disclosure, Figure 5 As shown, the oil injection ring 300 further includes a sealing gasket 5, which is located between the end surface of one side of the ring body 1 and the stator 200, and between the end surface of the other side of the ring body 1 and the housing 100. The sealing gasket 5 can seal the gaps between the ring body 1 and the stator 200 and between the ring body 1 and the inner wall of the housing 100, thereby forming a closed first cavity 301 and a second cavity 302.
[0052] Alternatively, see Figure 5 , the end surface of the oil retaining rib 2 away from the ring body 1 abuts against the inner wall of the housing 100, thereby forming a first cavity 301 and a second cavity 302 that are isolated from each other. An oil inlet hole 210 is provided on the stator 200, and the oil inlet hole 210 is connected to the second cavity 302. The oil pump can transport the cooling oil to the second cavity 302 through the oil inlet hole 210, so that it is sprayed onto the rotor 400 through the first oil injection hole 101 and the second oil injection hole 102. The diameter of the ring body 1 is smaller than the diameter of the stator 200, and the extension direction of the oil inlet hole 210 is the axial direction of the stator 200. One side of the oil retaining rib 2 forms the second cavity 302 with the ring body 1, the stator 200 and the housing 100, and the other side of the oil retaining rib 2 forms the first cavity 301 with the ring body 1 and the housing 100.
[0053] It should be noted that the ends of the other parts of the oil-retaining ribs 2 shown in the figure, which are away from the ring body 1, are abutted against the inner wall of the shell 100, thereby forming a plurality of first cavities 301, second cavities 302 and third cavities 303, and the first cavity 301 is connected to the second cavity 302 only through the through hole 201, and the second cavity 302 is connected to the third cavity 303 only through the slit 202.
[0054] Figure 6 Schematic diagram of the oil injection ring and stator of the motor provided in the embodiment of the present disclosure. In some embodiments of the present disclosure, such as Figure 6 As shown, the stator 200 is provided with a plurality of oil inlet holes 210, which are evenly spaced along the circumference of the stator 200. The oil inlet holes 210 connect the opposite ends of the stator 200 along the axial direction of the stator 200, thereby delivering oil to the two oil injection rings 300 provided at the two ends of the stator 200.
[0055] In a third aspect, an embodiment of the present disclosure further provides a vehicle, comprising the motor in any embodiment of the second aspect.
[0056] In the vehicle provided by the embodiment of the present disclosure, the motor includes an oil spray ring 300, and the first oil spray hole 101 on the oil spray ring 300 is arranged on the top of the rotor 400, and the second oil spray hole 102 is arranged on the side of the rotor 400. The cooling oil can enter the oil guide cavity 3 and be sprayed out through the first oil spray hole 101 and the second oil spray hole 102. Since the cross-sectional area of the first oil spray hole 101 is larger than the cross-sectional area of the second oil spray hole 102, the amount of oil sprayed from the first oil spray hole 101 is more than the amount of oil sprayed from the second oil spray hole 102, so that more cooling oil is sprayed on the top of the rotor 400, thereby increasing the contact area of the cooling oil on the top of the rotor 400, which is beneficial to improving the heat dissipation effect of the motor and improving the performance of the vehicle.
[0057] It should be noted that the "several" and "at least one" mentioned in this article refer to one or more, and "multiple" and "at least two" refer to two or more. "And / or" describes the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.
[0058] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0059] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0060] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.
[0061] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present disclosure.
[0062] The above descriptions are merely embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.
Claims
1. A fuel injection ring, characterized in that: It comprises a ring body (1) and an oil retaining rib (2), wherein the oil retaining rib (2) is connected to the outer peripheral side surface of the ring body (1), and the oil retaining rib (2) is divided on the outer peripheral side surface of the ring body (1) to form an oil guide cavity (3); The ring body (1) is provided with a plurality of first oil spray holes (101) and a plurality of second oil spray holes (102); the oil guide cavity (3) is in communication with the first oil spray holes (101) and the second oil spray holes (102); the cross-sectional area of the first oil spray holes (101) is greater than the cross-sectional area of the second oil spray holes (102); the first oil spray holes (101) are used to transport oil to the top of the motor rotor; and the second oil spray holes (102) are used to transport oil to the side wall of the motor rotor.
2. The oil spray ring according to claim 1, characterized in that: The oil guide chamber (3) comprises a plurality of first chambers (301) and second chambers (302); each of the first oil injection holes (101) is in communication with one of the first chambers (301), and each of the first chambers (301) is in communication with the second chamber (302).
3. The oil spray ring according to claim 2, characterized in that: The invention also comprises an adjusting member (4), wherein the adjusting member (4) is located in the first cavity (301), the first oil injection hole (101) is a waist-shaped hole, and the adjusting member (4) is configured to adjust the cross-sectional area of the portion connecting the first oil injection hole (101) and the first cavity (301).
4. The oil spray ring according to claim 3, characterized in that: The regulating member (4) comprises a baffle (401) and a spring (402); the baffle (401) divides the first cavity (301) into a first sub-cavity (3011) and a second sub-cavity (3012); the spring (402) is located in the second sub-cavity (3012); a convex portion (104) is provided on the edge of the ring body (1); and two ends of the spring (402) are respectively connected to the baffle (401) and the convex portion (104); The oil baffle (2) is provided with a through hole (201), wherein the through hole (201) is connected to the first sub-cavity (3011) and the second cavity (302), and the baffle (401) is configured to compress the spring (402) based on the pressure in the first sub-cavity (3011).
5. The oil spray ring according to claim 4, characterized in that: There are two springs (402), and both ends of the baffle (401) are respectively connected to the two springs (402), and the first oil injection hole (101) is located between the two springs (402).
6. The oil spray ring according to claim 2, characterized in that: The oil guide cavity (3) further comprises a third cavity (303), and the third cavity (303) is respectively connected to the plurality of second oil injection holes (102) and the second cavity (302).
7. A motor, characterized in that: The invention comprises a shell (100), a stator (200), a rotor (400) and an oil injection ring (300) according to any one of claims 1 to 6, wherein the oil injection ring (300) is sleeved on one end of the stator (200), the rotor (400) is located inside the stator (200), and the outer peripheral side surface of the ring body (1) is sealed and connected to the inner surface of the shell (100).
8. The motor according to claim 7, characterized in that It comprises two oil injection rings (300), and the two oil injection rings (300) are respectively sleeved on opposite ends of the stator (200).
9. The motor according to claim 8, characterized in that The oil injection ring (300) further comprises a sealing gasket (5), wherein the sealing gasket (5) is located between the end surface on one side of the ring body (1) and the stator (200), and between the end surface on the other side of the ring body (1) and the housing (100).
10. A vehicle, characterized in that: The vehicle comprises the motor according to any one of claims 7 to 9.