CN217183092U - Motor and vehicle - Google Patents
Motor and vehicle Download PDFInfo
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- CN217183092U CN217183092U CN202221085822.0U CN202221085822U CN217183092U CN 217183092 U CN217183092 U CN 217183092U CN 202221085822 U CN202221085822 U CN 202221085822U CN 217183092 U CN217183092 U CN 217183092U
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- oil
- stator
- oil outlet
- cooling
- cooling oil
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model provides a motor and a vehicle, relating to the technical field of motor cooling, the utility model provides a motor, which comprises a shell and a stator, wherein a working cavity is formed in the shell, and the stator is arranged in the working cavity; be equipped with first cooling oil circuit in the casing, set up a plurality of oil-outs that communicate with the working chamber on the first cooling oil circuit, and directional stator of whole oil-outs. And the oil outlet amount of the oil outlet is gradually reduced along the direction from the center of the first cooling oil path to the end part of the first cooling oil path. Because the temperature of the middle position of the stator is higher, and the temperature of the two ends of the stator is lower, the oil output quantity of the oil outlet is gradually reduced along the direction from the center of the first cooling oil way to the end part of the first oil way; by the arrangement, the cooling oil sprayed to the middle position of the stator is the most, and the cooling oil sprayed to the two ends of the stator is less; the stator cooling device can save the using amount of cooling oil while meeting the requirement of stator cooling.
Description
Technical Field
The utility model belongs to the technical field of motor cooling's technique and specifically relates to a motor and vehicle are related to.
Background
The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law.
Electric machines generally include a housing, a stator, and a rotor. The inside working chamber that is formed with of shell, stator and rotor set up in the working chamber, rotate through the rotor and produce driving torque, or utilize mechanical energy to turn into the electric energy. In the working process of the motor, the stator and the rotor can generate a large amount of heat, a cooling system needs to be arranged to cool the motor, otherwise, the motor can generate energy loss.
Under the general condition, the motor adopts the cooling mode that fluid sprayed, and it is through directly spraying cooling fluid to rotor and stator on to reduce the temperature in rotor and the stator working process, the cooling effect is better. However, when the motor works, the temperatures of all parts on the stator are different, and the oil is easy to waste and has larger loss when being directly sprayed on the stator.
SUMMERY OF THE UTILITY MODEL
The utility model discloses (one) the problem that will solve is: the existing cooling system directly sprays cooling oil liquid on the stator, so that the cooling effect is poor, and the waste of the cooling oil liquid is easily caused.
(II) technical scheme
In order to solve the above technical problem, an embodiment of the present invention provides an electric motor, including a housing and a stator, wherein a working cavity is formed in the housing, and the stator is disposed in the working cavity; a first cooling oil path is further arranged in the shell, a plurality of oil outlets communicated with the working cavity are formed in the first cooling oil path, and all the oil outlets point to the stator;
and the oil outlet amount of the oil outlet is gradually reduced along the direction from the center of the first cooling oil path to the end part of the first cooling oil path.
According to an embodiment of the present invention, further, along the center of the first cooling oil path to the end direction of the first cooling oil path, the inner diameter of the oil-out is gradually reduced.
According to an embodiment of the present invention, further, the first cooling oil path includes a first pipe section and a second pipe section, one end of the first pipe section is communicated with the oil inlet pipe, and the other end of the first pipe section is communicated with the second pipe section; the flow in the first pipe section is greater than the flow in the second pipe section;
the first pipe section has a first projection on the surface of the stator, the second pipe section has a second projection on the surface of the stator, and the length of the first projection is greater than that of the second projection.
According to an embodiment of the present invention, further, an inner diameter of the first pipe section is larger than an inner diameter of the second pipe section.
According to an embodiment of the present invention, further, four oil outlets are disposed on the first cooling oil path, and along a direction from the first pipe section to the second pipe section, the four oil outlets are a first oil outlet, a second oil outlet, a third oil outlet and a fourth oil outlet, respectively; the inner diameter of the first oil outlet is smaller than that of the second oil outlet, and the inner diameter of the fourth oil outlet is smaller than that of the third oil outlet;
the first oil outlet, the second oil outlet and the third oil outlet are arranged on the first pipe section, the fourth oil outlet is arranged on the second pipe section, the second oil outlet and the third oil outlet point to the side face of the stator, and the first oil outlet and the fourth oil outlet point to the end part of the stator.
According to an embodiment of the present invention, further, a flow channel network is further disposed on a side surface of the stator, and the flow channel network is used for shunting the cooling oil;
the second outlet and the third outlet point to the flow channel network.
According to an embodiment of the present invention, further, the flow channel network includes a drainage groove provided in a side surface of the stator.
According to an embodiment of the present invention, further, the stator includes a stator core and a winding coil; the winding coil is arranged on the stator core, and two ends of the winding coil respectively extend out of two ends of the stator core;
the first oil outlet and the fourth oil outlet point to the end parts of the winding coils respectively.
According to an embodiment of the present invention, further, the apparatus further comprises a rotor, the rotor being located within the stator; a second cooling oil path is also arranged in the shell;
the second cooling oil way is communicated with the first cooling oil way and is used for spraying cooling oil to the rotor.
An embodiment of another aspect of the present invention provides a vehicle, including the motor described in any one of the above embodiments.
The utility model has the advantages that:
the utility model provides a motor, which comprises a shell and a stator, wherein a working cavity is formed in the shell, and the stator is arranged in the working cavity; be equipped with first cooling oil circuit in the casing, set up a plurality of oil-outs that communicate with the working chamber on the first cooling oil circuit, and directional stator of whole oil-outs. And the oil outlet amount of the oil outlet is gradually reduced along the direction from the center of the first cooling oil path to the end part of the first cooling oil path.
Because the temperature of the middle position of the stator is higher, and the temperatures of the two ends are lower, the oil outlet quantity of the oil outlet is gradually reduced along the direction from the center of the first cooling oil way to the end part of the first oil way; by the arrangement, the cooling oil sprayed to the middle position of the stator is the most, and the cooling oil sprayed to the two ends of the stator is less; the stator cooling device can save the using amount of cooling oil while meeting the requirement of stator cooling.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a motor provided by an embodiment of the present invention.
Icon: 100-a housing; 110-first cooling oil circuit; 111-a first tube section; 112-a second tube section; 113-a first oil outlet; 114-a second oil outlet; 115-a third oil outlet; 116-a fourth oil outlet; 120-second cooling oil path;
200-a stator; 210-network of flow channels.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It should be noted that, in the description of the present invention, the terms "connected" and "mounted" should be interpreted broadly, for example, they may be fixedly connected, detachably connected, or integrally connected; can be directly connected or connected through an intermediate medium; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
An embodiment of the present invention provides a motor, as shown in fig. 1, which includes a housing 100, a stator 200, and a rotor. A working chamber is formed inside the housing 100, and the stator 200 and the rotor are disposed in the working chamber.
A first cooling oil passage 110 for cooling the stator 200 is provided in the casing 100, and a cooling oil liquid flows in the first cooling oil passage 110. A plurality of oil outlets communicated with the working chamber are formed in the first cooling oil path 110, all the oil outlets point to the stator 200, and the cooling oil in the first cooling oil path 110 is sprayed out from the oil outlets to the stator 200 located in the working chamber.
In the present embodiment, all the oil outlets are directed to the stator 200, that is, all the oil outlets are disposed opposite to the stator 200, and the cooling oil ejected from the oil outlets can fall on the stator 200 to cool the stator 200.
In this embodiment, as shown in fig. 1, the oil outlet amount of the oil outlet gradually decreases in a direction from the center of the first cooling oil path 110 to the end of the first oil path.
As is well known, the stator 200 includes a stator core and a winding coil wound on the stator core. The stator core is provided with a hole, a slot or other structures; the stator 200 is formed by winding a winding coil around a stator core (the majority of the winding coil is located inside the stator core, and the two ends are located outside the stator core, which is well known in the art). While the stator 200 is in operation, heat is generated mainly by the winding coils, and the winding coils located in the stator core have the highest heat and the winding coils located at both ends have the lower heat. Therefore, in the present embodiment, the oil outlet amount of the oil outlet port gradually decreases in the direction from the center of the first cooling oil passage 110 to the end of the first oil passage. Because the middle position of the stator 200 has higher temperature, the cooling oil sprayed to the middle position of the stator 200 is the most, and the temperature of the two ends of the stator 200 is lower, so the cooling oil sprayed to the two ends of the stator 200 is less; thus, the stator 200 can be cooled while the amount of the cooling oil can be saved.
In the present embodiment, for convenience of description, the first cooling oil path 110 has a first end and a second end that are disposed opposite to each other. The oil outlet amount of the oil outlet is gradually reduced in a direction from the center of the first cooling oil path 110 to the end of the first cooling oil path 110. That is, the oil discharge amount of the oil outlet is gradually reduced from the center position of the first cooling oil path 110 to the first end, and the oil discharge amount of the oil outlet is gradually reduced from the center position of the first cooling oil path 110 to the second end. The oil outlet port having the largest oil output amount is located near the center of the first cooling oil path 110.
In an alternative embodiment of the present invention, the inner diameter of the oil outlet is gradually reduced along a direction from the center of the first cooling oil path 110 to the end of the first cooling oil path 110.
In the embodiment, the oil outlet amount of the oil outlet is controlled by changing the inner diameter of the oil outlet (the inner diameter influences the area of the oil outlet and further influences the flow rate of the oil outlet), and the oil outlet control device is simple in structure and convenient to manufacture.
Optionally, in this embodiment, a flow limiting valve may be further disposed at the oil outlet, which also achieves the purpose of controlling the oil output of the oil outlet in this embodiment.
In this embodiment, in order to more accurately distribute the oil amount, as shown in fig. 1, the flow rates in the first pipe section 111 and the second pipe section 112 of the first cooling oil path 110 are also different.
Specifically, the first cooling oil path 110 includes a first pipe segment 111 and a second pipe segment 112, one end of the first pipe segment 111 is communicated with an oil inlet pipeline, the oil inlet pipeline is used for introducing cooling oil into the first pipe segment 111, and the other end of the first cooling oil path is communicated with the second pipe segment 112. Wherein the flow in the first pipe section 111 is larger than the flow in the second pipe section 112.
Meanwhile, the first pipe section 111 has a first projection on the surface of the stator 200, the second pipe section 112 has a second projection on the surface of the stator 200, and the length of the first projection is greater than that of the second projection.
The first pipe section 111 has a higher flow rate and a larger length, and is provided with a relatively larger oil outlet with a larger inner diameter, the second pipe section 112 has a lower flow rate and a shorter length, and the second pipe section 112 is provided with an oil outlet with a smaller inner diameter. So, through above-mentioned structure, the quantity of distribution cooling fluid that can be more accurate, reasonable avoids causing cooling fluid extravagant.
In an alternative embodiment of the present invention, the inner diameter of the first pipe section 111 is larger than the inner diameter of the second pipe section 112.
In this embodiment, the flow rate of the cooling oil in the first pipe section 111 and the second pipe section 112 is changed by changing the inner diameters of the first pipe section 111 and the second pipe section 112, and the structure is simple.
It is understood that, in the present embodiment, the flow-limiting valves may be further disposed at the first pipe section 111 and the second pipe section 112, which also can achieve the purpose of changing the flow rate of the cooling oil in the first pipe section 111 and the second pipe section 112 in the present embodiment.
In practical use, as shown in fig. 1, four oil outlets are opened on the first cooling oil path 110. For convenience of description, along the direction from the first pipe section 111 to the second pipe section 112, the four oil outlets are a first oil outlet 113, a second oil outlet 114, a third oil outlet 115 and a fourth oil outlet 116. Wherein an inner diameter of the first oil outlet 113 is smaller than an inner diameter of the second oil outlet 114. The inner diameter of the fourth oil outlet 116 is smaller than the inner diameter of the third oil outlet 115.
The inner diameters of the first oil outlet 113 and the fourth oil outlet 116 are not limited, and may be set according to actual conditions. Similarly, the inner diameters of the second oil outlet 114 and the third oil outlet 115 are not limited, and can be set according to actual conditions.
The first oil outlet 113, the second oil outlet 114 and the third oil outlet 115 are opened on the first pipe section 111, and the second oil outlet 114 and the third oil outlet 115 point to the side of the stator 200, so that more cooling oil flows to the side of the stator 200, and the temperature of the stator 200 is reduced. The fourth oil outlet 116 is opened on the second tube section 112, and the first oil outlet 113 and the fourth oil outlet 116 point to an end of the stator 200, specifically, to an end of the winding coil, so as to reduce a temperature of the end of the winding coil.
In the present embodiment, it has been mentioned above that the temperature of the middle position of the stator 200 is high, and the temperatures of both ends are low. The second oil outlet 114 and the third oil outlet 115 with larger oil output are arranged on the first pipe section 111, so that the temperature of the stator 200 is ensured to be in a normal working condition, and the work of the motor is prevented from being influenced. Meanwhile, the fourth oil outlet 116 is arranged on the second pipe section 112, so that the stator 200 is cooled, and meanwhile, no waste of cooling oil is caused.
Optionally, as shown in fig. 1, a flow network 210 is further disposed on the side surface of the stator 200, and the flow network 210 is used for dividing the cooling oil. Said second outlet port 114 and said third outlet port 115 are directed to said flow network 210.
In the present embodiment, since the oil outlet amount of the second oil outlet 114 and the third oil outlet 115 is large, it is used for aligning the flow channel network 210 disposed on the side surface of the stator 200, so that the cooling oil can be more reasonably distributed.
In actual use, the flow network 210 may be a drainage groove disposed in the side of the stator 200.
In the present embodiment, the structure of the stator 200 is mentioned above, and therefore, the description thereof is omitted.
In practical use, the two ends of the winding coil are exposed out of the core of the stator 200.
In this embodiment, the first oil outlet 113 and the fourth oil outlet 116 point to two end portions of the winding coil respectively, and are used for cooling the end portions of the winding coil, so that a dead angle is avoided in the cooling process, and the cooling effect is improved.
In the present embodiment, a second cooling oil path 120 is further included, and the second cooling oil path 120 is used for cooling the rotor.
Specifically, in the present embodiment, one end of the second cooling oil path 120 is communicated with the first cooling oil path 110, and the cooling oil in the first cooling oil path 110 flows into the second cooling oil path 120 and is sprayed to the rotor.
In practical use, cooling oil in an oil inlet pipeline is pumped into the first cooling oil path 110 through structures such as an oil pump, part of the cooling oil is sprayed to one end of a winding coil from the first oil outlet 113, part of the cooling oil is sprayed to the iron core of the stator 200 from the second oil outlet 114 and the third oil outlet 115, and part of the cooling oil is sprayed to the other end of the winding coil from the fourth oil outlet 116; finally, the remaining oil flows into the second cooling oil passage 120 for cooling the rotor.
Another embodiment of the present invention further provides a vehicle including the motor as set forth in the above embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The motor comprises a shell (100) and a stator (200), wherein a working cavity is formed in the shell (100), and the stator (200) is arranged in the working cavity; the cooling device is characterized in that a first cooling oil path (110) is further arranged in the shell (100), a plurality of oil outlets communicated with the working cavity are formed in the first cooling oil path (110), and all the oil outlets point to the stator (200);
the oil outlet amount of the oil outlet is gradually reduced along the direction from the center of the first cooling oil path (110) to the end of the first cooling oil path (110).
2. The electric machine according to claim 1, characterized in that the oil outlet has a gradually decreasing inner diameter in a direction from the center of the first cooling oil path (110) to an end of the first cooling oil path (110).
3. The electric machine according to claim 1, characterized in that the first cooling oil path (110) comprises a first pipe segment (111) and a second pipe segment (112), the first pipe segment (111) communicating with an oil inlet pipe at one end and with the second pipe segment (112) at the other end; the flow rate in the first pipe section (111) is greater than the flow rate in the second pipe section (112);
the first pipe section (111) has a first projection on the surface of the stator (200), and the second pipe section (112) has a second projection on the surface of the stator (200), wherein the length of the first projection is greater than the length of the second projection.
4. The electrical machine according to claim 3, wherein the inner diameter of the first tube section (111) is larger than the inner diameter of the second tube section (112).
5. The motor of claim 4, wherein the first cooling oil path (110) is opened with four oil outlets, and along the direction from the first pipe section (111) to the second pipe section (112), the four oil outlets are respectively a first oil outlet (113), a second oil outlet (114), a third oil outlet (115) and a fourth oil outlet (116); the inner diameter of the first oil outlet (113) is smaller than that of the second oil outlet (114), and the inner diameter of the fourth oil outlet (116) is smaller than that of the third oil outlet (115);
the first oil outlet (113), the second oil outlet (114) and the third oil outlet (115) are arranged on the first pipe section (111), the fourth oil outlet (116) is arranged on the second pipe section (112), the second oil outlet (114) and the third oil outlet (115) point to the side face of the stator (200), and the first oil outlet (113) and the fourth oil outlet (116) point to the end of the stator (200).
6. The machine according to claim 5, characterized in that the stator (200) is further provided with a flow network (210) on the side, the flow network (210) being used for splitting cooling oil;
said second outlet port (114) and said third outlet port (115) are directed to said flow network (210).
7. The electric machine of claim 6, wherein the flow network (210) comprises drainage slots in the sides of the stator (200).
8. The electric machine according to claim 5, characterized in that the stator (200) comprises a stator core and a winding coil; the winding coil is arranged on the stator core, and two ends of the winding coil respectively extend out of two ends of the stator core;
the first oil outlet (113) and the fourth oil outlet (116) are directed to ends of the winding coil, respectively.
9. The machine according to claim 4, further comprising a rotor located within the stator (200); a second cooling oil path (120) is also arranged in the shell (100);
the second cooling oil path (120) is communicated with the first cooling oil path (110), and the second cooling oil path (120) is used for spraying cooling oil to the rotor.
10. A vehicle, characterized by comprising an electric machine according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221085822.0U CN217183092U (en) | 2022-05-07 | 2022-05-07 | Motor and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221085822.0U CN217183092U (en) | 2022-05-07 | 2022-05-07 | Motor and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217183092U true CN217183092U (en) | 2022-08-12 |
Family
ID=82710508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221085822.0U Active CN217183092U (en) | 2022-05-07 | 2022-05-07 | Motor and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217183092U (en) |
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2022
- 2022-05-07 CN CN202221085822.0U patent/CN217183092U/en active Active
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