CN217240445U - Hybrid cooling new forms of energy generator casing - Google Patents
Hybrid cooling new forms of energy generator casing Download PDFInfo
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- CN217240445U CN217240445U CN202123433859.6U CN202123433859U CN217240445U CN 217240445 U CN217240445 U CN 217240445U CN 202123433859 U CN202123433859 U CN 202123433859U CN 217240445 U CN217240445 U CN 217240445U
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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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model discloses a hybrid cooling new forms of energy generator housing, including shell and cooling water route, the shell inboard is equipped with wiring groove and oil groove, the oil groove covers in the stator surface, form cooling oil circuit between oil groove inner wall and the stator-rotor, the cooling water route set up in inside the cooling oil circuit, still be provided with long-pending oil groove in the cooling oil circuit. The utility model discloses a mix cooling new forms of energy generator casing, add long-pending oil groove and oil road passageway on water-cooled casing's basis, overall structure is simple, and the manufacturability is strong, whole water course sets up inside the casing oil duct, the risk of leaking is less, the water course adopts the integrated configuration of whole regional spiral water course and local axial water course, it is littleer than whole axial water course flow resistance, can have the terminal box on the outer envelope of the motor, long-pending oil bath, when the water courses such as oil duct need dodge the structure, cooling area is guaranteed to the maximum extent, reduce the flow resistance, satisfy the water course and arrange the requirement.
Description
Technical Field
The utility model relates to an automobile parts technical field, concretely relates to hybrid cooling new forms of energy generator casing.
Background
For a new energy automobile, the motor is used as a core component of a power driving system of the new energy automobile, and the excellent motor performance and the high-performance motor driving technology can furthest show the energy-saving advantage of the electric automobile. Currently, the endurance mileage and the manufacturing and operating cost of one-time charging become key problems restricting the development of electric vehicles, and in this situation, the range-extended hybrid technology becomes an important development direction. The generator is used as a key component in the range extender system and is responsible for converting mechanical energy provided by the engine into electric energy, and the space requirement in the whole vehicle is more compact compared with that of a pure electric vehicle. Therefore, high efficiency is often required in a limited space. High power density and high output capability. In a certain space, the size of the motor is basically determined, and if the motor is required to have higher rated output capacity, the output capacity of the motor can be improved by improving the heat dissipation capacity of the motor.
The motor housing serves as a mechanical support for the stator core and the winding of the motor, and on one hand, the motor housing needs to protect internal parts and on the other hand, the motor housing also plays a role in heat dissipation of the motor. At present, most motor products adopt a natural cooling mode, a water cooling mode or an oil cooling mode to cool the heat generated during the working of the motor.
Particularly for the extended range type new energy electric vehicle, because at least a first water inlet sleeve power system (a range extender system and an electric drive system) exists in a vehicle cabin, the installation space of the generator is more compact, and under the condition that the installation space of the whole vehicle is already set and the lengthening allowance is smaller at present, the rated output capacity of the generator is improved, and only the heat dissipation capacity of the generator can be considered to be improved. The existing generator shell adopts a single oil cooling mode and mainly cools the end part of a stator winding; if the common water cooling mode is changed, the stator iron core and the winding are indirectly cooled; the two cooling modes have respective advantages and disadvantages, and the single mode has smaller cooling capacity improving space.
In addition, for the water channel of the water-cooling shell, compared with an axial water channel, the spiral water channel has smaller flow resistance, and because the outer envelope of the shell of the conventional generator is provided with the external structures such as a junction box, a low-voltage connector interface, an oil accumulation groove, an oil cooler and the like, the positions cause the water channel structure to be avoided during design, the spiral water channel cannot be integrally covered along one direction, and a flowing dead zone sometimes occurs.
Therefore, in order to solve the above problems, a hybrid cooling new energy generator housing is needed, an oil accumulation groove and an oil passage are additionally arranged on the basis of a water cooling housing, the overall structure is simple, the manufacturability is strong, an overall water passage is arranged in an oil passage, the water leakage risk is smaller, the flow resistance is smaller than that of an axial water passage, the water passage adopts a combined structure of an overall region spiral water passage and a local axial water passage, when structures needing to be avoided by the water passages such as a junction box, an oil accumulation groove and the oil passage exist on the outer envelope of a motor, the cooling area is guaranteed to the maximum extent, the flow resistance is reduced, and the requirement of water passage arrangement is met.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the defect among the prior art, provide mixed cooling new forms of energy generator casing, add long-pending oil groove and oil road passageway on water-cooling casing's basis, overall structure is simple, and the manufacturability is strong, whole water course sets up in the oil duct, the risk of leaking is less, it is littleer than axial water course flow resistance, the water course adopts the integrated configuration of whole regional spiral water course and local axial water course, can exist the terminal box on the outer envelope of motor, long-pending oil pond, when the structures that water courses such as oil duct need dodge, cooling area is guaranteed to the maximum extent, reduce the flow resistance, satisfy the water course and arrange the requirement.
The utility model discloses a hybrid cooling new forms of energy generator casing, including shell and cooling water route, the shell inboard is equipped with wiring groove and oil groove, the oil groove covers in the stator surface, form cooling oil circuit between oil groove inner wall and the stator-rotor, the cooling water route set up in inside the cooling oil circuit, still be provided with long-pending oil groove in the cooling oil circuit.
Further, the cooling water path is arranged between the inner wall of the oil groove and the outer surface of the stator in a circulating reciprocating mode and comprises a spiral water path and an axial water path which are communicated with each other.
Furthermore, a first water inlet, a second water inlet, a first water outlet and a second water outlet which are communicated with each other are further arranged on the cooling water path, the first water inlet is communicated with the second water inlet, and the first water outlet is communicated with the second water outlet.
Further, an oil inlet and an oil outlet are arranged on the cooling oil path, the oil inlet is communicated with an oil accumulation groove through an oil duct, the oil accumulation groove is communicated with the cooling oil path, and the cooling oil path is communicated with the oil outlet.
Furthermore, the first water inlet, the second water inlet, the first water outlet, the second water outlet, the oil inlet and the oil outlet are arranged on the same side of the shell in a yielding manner.
A cooling water path: after the cooling liquid enters from the first water inlet, the cooling liquid can be divided into two parallel paths, and one path of the cooling liquid passes through the spiral water channel. The spiral water channel is turned back in the section with larger circumferential length between the wiring groove and the oil accumulation groove, is arranged in layers and flows along two directions to avoid the wiring groove; and the water flows to the axial water channel, and because the circumferential length of the other section of region between the wiring groove and the oil accumulation groove is smaller, the water flows circularly in the axial direction by adopting the local water channel, then the water flows out of the shell, the outer circle surface of the stator is covered to the maximum extent, and the stator core and the winding are cooled indirectly. The water channel structure connected in parallel or in series can be adopted according to the requirement of cooling flow.
The size can be obtained through fluid simulation by arranging a water channel branch with the width b, on one hand, the flow of the main path of the cooling water path is ensured to carry out overall cooling, and on the other hand, the local fluid dead zone is eliminated.
Cooling an oil path: cooling oil in the oil accumulation groove enters the oil inlet through a wiring groove on the inner wall of the shell, and flows out of the oil outlet after heat is taken away by the cooling liquid in the oil cooler through the oil duct; at the moment, an oil pump can be arranged in the end cover structure or cooling oil is pumped into the rotor oil way through an external oil pump, the stator and the rotor are cooled through the oil throwing of the rotor, and the oil flows into the oil way again to form circulation; at present, the rotor oil slinging cooling structure has many applications, and the details of a rotor oil circuit are not described herein.
The water cooling machine is characterized in that an oil accumulation groove and an oil path channel are additionally arranged on the basis of a water cooling machine shell, the whole structure is simple, the manufacturability is strong, an integral water path is arranged in an oil path, the water leakage risk is smaller, the flow resistance is smaller than that of an axial water path, the water path adopts a combined structure of an integral region spiral water path and a local axial water path, when a structure that water paths such as a junction box, an oil accumulation pool and the oil path need to be avoided exists on an outer envelope of the motor, the cooling area is ensured to the maximum extent, the flow resistance is reduced, the arrangement requirement of the water path is met, a fluid dead zone exists in a partial water path region due to the structure that a water outlet, a water inlet and the water path are avoided, a branch path can be arranged between the water paths, and the size of an opening formed by the well through a simulation adjustment branch path is used for adjusting the flow between the branch path and a main path, and the integral cooling requirement of the motor is ensured; compared with a common water-cooling shell, the shell has the same outer diameter size, the stator core and the winding can be cooled by cooling liquid under the same stator and rotor structure condition, the end part of the winding and the rotor can be directly cooled by cooling oil, the advantages of two heat dissipation modes are taken into consideration, the heat dissipation capability is improved, the rated output capability is synchronously improved, the oil cooler is integrated with the generator shell, and the water inlet and the oil outlet are both arranged on the mounting surface on the same side, so that the outer enveloping space is saved; the water cooling mode is flexible, the parallel connection mode can distribute the cooling flow by adjusting the sizes of the water inlet of the oil cooler and the water inlet of the shell, and the cooling requirements of different motor working conditions are met; and a series connection mode can also be adopted, so that the cooling liquid sequentially passes through the oil cooler and the shell water channel.
The utility model has the advantages that: the utility model discloses a mix cooling new forms of energy generator casing, add long-pending oil groove and oil road passageway on water-cooled casing's basis, overall structure is simple, and the manufacturability is strong, whole water course sets up inside the casing oil duct, the risk of leaking is less, the water course adopts the integrated configuration of whole regional spiral water course and local axial water course, it is littleer than axial water course flow resistance, can exist the terminal box on the outer envelope of the motor, long-pending oil bath, when the water courses such as oil duct need dodge the structure, cooling area is guaranteed to the maximum extent, reduce the flow resistance, satisfy the water course and arrange the requirement.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of a housing of the present invention;
fig. 2 is a schematic structural view of the cooling water path of the present invention;
fig. 3 is a front view of fig. 2.
Detailed Description
Fig. 1 is the utility model discloses a structural schematic diagram of casing, fig. 2 is the utility model discloses a structural schematic diagram in cooling water route, fig. 3 is the front view of fig. 2, as shown in the figure, hybrid cooling new forms of energy generator casing in this embodiment includes shell and cooling water route, the shell inboard is equipped with wiring groove 1 and engine oil groove, the engine oil groove covers in the stator surface, form cooling oil circuit between engine oil groove inner wall and the stator-rotor, the cooling water route set up in inside the cooling oil circuit, still be provided with oil accumulation groove 10 in the cooling oil circuit.
In this embodiment, the cooling water path is disposed between the inner wall of the oil sump and the outer surface of the stator in a reciprocating manner, and includes a spiral water channel 9 and an axial water channel 8 which are communicated with each other.
In this embodiment, the cooling water path is further provided with a first water inlet 2 and a second water inlet 3 which are communicated with each other, and a first water outlet 5 and a second water outlet 7 which are communicated with each other, the first water inlet 2 is communicated with the second water inlet 3, and the first water outlet 5 is communicated with the second water outlet 7.
In this embodiment, the cooling oil path is provided with an oil inlet 4 and an oil outlet 6, the oil inlet 4 is communicated with an oil accumulation groove 10 through an oil path 11, the oil accumulation groove 10 is communicated with the cooling oil path, and the cooling oil path is communicated with the oil outlet 6.
In this embodiment, the first water inlet 2, the second water inlet 3, the first water outlet 5, the second water outlet 7, the oil inlet 4 and the oil outlet 6 are arranged at the same side of the housing in an abdicating manner.
A cooling water path: after entering from the first water inlet 2, the cooling liquid can be divided into two parallel paths, and one path passes through the spiral water channel 9. Because the wiring groove 1 obstructs the spiral water channel 9 to circulate along one direction on the circumference, the spiral water channel 9 is turned back in the section with larger circumferential length between the wiring groove 1 and the oil accumulation groove 10, is arranged in layers and flows along two directions to avoid the wiring groove 1; and the water flows to the axial water channel 8, and because the circumferential length of the other section of region between the wiring groove 1 and the oil accumulation groove 10 is smaller, the water channel is adopted to avoid the oil accumulation groove 10 after axially circulating flow, and then the water channel flows out of the shell to cover the outer circular surface of the stator to the maximum extent, so that the stator core and the winding are indirectly cooled.
The size can be obtained through fluid simulation by arranging a water channel branch with the width b, on one hand, the flow of the main path of the cooling water channel is ensured to carry out integral cooling, and on the other hand, the local fluid dead zone is eliminated.
Cooling an oil path: cooling oil in the oil accumulation groove 10 enters the oil inlet 4 through an oil path 11 on the inner wall of the shell, and flows out of the oil outlet 6 after heat is taken away by the cooling liquid in the oil cooler; at the moment, a rotor oil pump can be arranged in the end cover structure or cooling oil is pumped into a rotor oil way through an external oil pump, the stator and the rotor are cooled through rotor oil throwing, and the oil flows into the oil accumulation groove 10 to form circulation; at present, the rotor oil slinging cooling structure has many applications, and the details of a rotor oil circuit are not described herein.
The water cooling machine is characterized in that an oil accumulation groove 10 and an oil path channel are additionally arranged on the basis of a water cooling machine shell, the whole structure is simple, the manufacturability is strong, the whole water path is arranged in an oil path 11 of the shell, the water leakage risk is small, the water path adopts a combined structure of a spiral water path 9 and a local axial water path 8 in the whole area, the flow resistance is smaller than that of the axial water path 8 in the whole area, when a structure that the water paths such as a junction box 1, the oil accumulation groove 10 and the oil path 11 need to be avoided exists on the outer envelope of the motor, the cooling area is ensured to the maximum extent, the flow resistance is reduced, the arrangement requirement of the water path is met, and due to the avoidance of the structures such as a water outlet, a water inlet, the water path and the water path, a fluid dead zone exists in the partial water path area, branch paths can be arranged between the water paths, and the opening size of the branch paths and the main path is adjusted through simulation, so that the flow between the branch paths and the whole cooling requirement of the motor is ensured; compared with a common water-cooling shell, the shell has the same outer diameter size, the stator core and the winding can be cooled by cooling liquid under the condition of the same stator and rotor structure, the end part of the winding and the rotor can be directly cooled by cooling oil, the advantages of two heat dissipation modes are taken into consideration, the heat dissipation capacity is improved, and the rated output capacity is synchronously improved; the oil cooler and the generator shell are easy to integrate, and the water inlet and the water outlet and the oil inlet and the oil outlet 6 are both arranged on the mounting surface on the same side, so that the outer enveloping space is saved; the water cooling mode is flexible, and the water channel structure connected in parallel or in series can be adopted according to the requirement of cooling flow. The parallel connection mode can distribute the cooling flow by adjusting the sizes of the water inlet of the oil cooler and the water inlet of the shell, and is suitable for the cooling requirements of different motor working conditions; and the cooling liquid can also pass through the oil cooler and the shell water channel in sequence in a series connection mode to cool the cooling oil and the heat of the stator core in sequence.
The utility model discloses a hybrid cooling new energy generator housing, add ponding oil groove 10 and oil way passageway on the basis of water-cooling casing, overall structure is simple, strong in manufacturability, whole water course sets up inside casing oil duct 11, the risk of leaking is less, the water course adopts the integrated configuration of whole regional spiral water course 9 and local axial water course 8, it is littleer than whole axial water course flow resistance, can have terminal box 1 on the outer envelope of motor, ponding oil groove 10, when the structure that water courses such as oil duct 11 need dodge, cooling area is guaranteed to the maximum extent, reduce the flow resistance, satisfy the water course and arrange the requirement.
Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a hybrid cooling new forms of energy generator motor casing which characterized in that: including shell and cooling water route, the shell inboard is equipped with wiring groove and engine oil groove, the engine oil groove covers in the stator surface, form cooling oil circuit between engine oil groove inner wall and the stator and rotor, the cooling water route set up in inside the cooling oil circuit, still be provided with the oil accumulation groove in the cooling oil circuit.
2. The hybrid cooling new energy generator housing of claim 1, wherein: the cooling water path is arranged on the inner wall of the engine oil groove in a circulating reciprocating mode and comprises a spiral water path and an axial water path which are communicated with each other.
3. The hybrid cooling new energy generator housing of claim 2, wherein: the cooling water path is also provided with a first water inlet, a second water inlet, a first water outlet and a second water outlet which are communicated with each other, the first water inlet is communicated with the second water inlet, and the first water outlet is communicated with the second water outlet.
4. The hybrid cooling new energy generator housing of claim 3, wherein: the cooling oil way is provided with an oil inlet and an oil outlet, the oil inlet is communicated with an oil accumulation groove through an oil duct, the oil accumulation groove is communicated with the cooling oil way, and the cooling oil way is communicated with the oil outlet.
5. The hybrid cooling new energy generator housing of claim 4, wherein: the first water inlet, the second water inlet, the first water outlet, the second water outlet, the oil inlet and the oil outlet are arranged on the same side of the shell in a yielding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123433859.6U CN217240445U (en) | 2021-12-30 | 2021-12-30 | Hybrid cooling new forms of energy generator casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123433859.6U CN217240445U (en) | 2021-12-30 | 2021-12-30 | Hybrid cooling new forms of energy generator casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217240445U true CN217240445U (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123433859.6U Active CN217240445U (en) | 2021-12-30 | 2021-12-30 | Hybrid cooling new forms of energy generator casing |
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| CN (1) | CN217240445U (en) |
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2021
- 2021-12-30 CN CN202123433859.6U patent/CN217240445U/en active Active
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 7, Wuyun Lake Road, Shapingba District, Chongqing 400038 Patentee after: Celes Group Co.,Ltd. Address before: 400033 Jinqiao Road, Shapingba District, Chongqing City, No. 61-1 Patentee before: CHONGQING SOKON INDUSTRY GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230817 Address after: 401220 Mechanical and Electrical Materials Park, Yanjia Industrial Park, Changshou District, Chongqing Patentee after: Chongqing Xiaokang Power Co.,Ltd. Address before: No. 7, Wuyun Lake Road, Shapingba District, Chongqing 400038 Patentee before: Celes Group Co.,Ltd. |