CN217508444U - Stator and rotor liquid cooling device of motor - Google Patents
Stator and rotor liquid cooling device of motor Download PDFInfo
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- CN217508444U CN217508444U CN202220564927.8U CN202220564927U CN217508444U CN 217508444 U CN217508444 U CN 217508444U CN 202220564927 U CN202220564927 U CN 202220564927U CN 217508444 U CN217508444 U CN 217508444U
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- end cover
- water channel
- rear end
- rotating shaft
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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
Abstract
The utility model provides a stator rotor liquid cooling device of motor, set up first water course in the front end housing, set up the stator basin in the stator casing, set up the second water course in the rear end housing, and utilize the water pipe to establish ties the pivot hole, first water course, stator basin and second water course and form the return circuit, coolant liquid gets into from the pivot hole, through the route of pivot hole-first water course-stator basin-second water course, from the export outflow of second water course, the space that stator winding, front end housing, rear end housing, stator casing enclose in the motor is filled with the heat dissipation glue that coefficient of thermal conductivity is great, can radially transmit the heat that stator winding produced to the coolant liquid internal cooling in the stator casing, along the axial transmission to the coolant liquid internal cooling in front end housing and the rear end housing, can be with the copper consumption of stator winding, the iron consumption of stator and rotor, can be with the stator winding, The heat generated by the mechanical losses of the bearings is entirely removed by the cooling fluid.
Description
Technical Field
The utility model relates to a motor cooling and heat dissipation field especially relate to a stator rotor liquid cooling device of motor.
Background
The heat generated during the operation of the motor mainly comes from copper loss of a stator winding product when the motor is electrified, iron loss generated by a stator and a rotor and mechanical loss generated by a bearing when the motor rotates. The heat generated by the motor is a main factor for limiting the output performance of the motor and also a main factor for influencing the light weight of the motor. In addition to conventional natural cooling and forced air cooling, there are also ways of cooling by means of a cooling liquid.
The traditional liquid cooling motor generally comprises two cooling modes, wherein one mode is water cooling for a stator winding, a water cooling shell is usually added outside a stator, and heat generated by the stator winding is taken away by cooling liquid through a cooling water channel of the shell; the other is directed to the heat generated by the rotor, and the heat generated by the rotor is generally taken away by a way of cooling liquid flowing through an inner hole of the rotor. The two heat dissipation modes are often used independently, or the water cooling of the stator winding and the heat dissipation of the rotor cooling liquid use different cooling loops, so that the heat generated by the rotor in the first mode is not easy to dissipate, the output function of the whole motor is influenced, the first mode and the second mode are used in a superposition mode, the whole cooling system becomes complicated and bloated, and the installation and the use of the motor are also influenced. Therefore, a new stator and rotor liquid cooling device is needed, which can simply and efficiently dissipate the heat of the stator and the rotor of the motor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a stator and rotor liquid cooling device of a motor.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a stator and rotor liquid cooling device of a motor is of a symmetrical structure by taking a rotating shaft as a central shaft, wherein a rotor and a stator are sequentially sleeved outside the rotating shaft, a stator winding is arranged on the stator, a front end cover, a stator shell and a rear end cover are sequentially arranged at the outermost part of the motor along the axis direction, the stator shell is arranged outside the stator, a front bearing is arranged between the front end cover and the rotating shaft, and a rear bearing is arranged between the rear end cover and the rotating shaft; a rotating shaft inner hole is formed in the rotating shaft along the axis, the front end cover and the rear end cover are both cylindrical shells which are symmetrical about the rotating shaft, a first water channel is formed in a cover body of the front end cover, a second water channel is formed in a cover body of the rear end cover, a stator water tank is formed in the stator casing, one end of the rotating shaft inner hole is connected with a condenser and used for inputting cooling liquid, the other end of the rotating shaft inner hole is connected with an inlet of the first water channel through a hose, an outlet of the first water channel is connected with an inlet of the stator water tank, an outlet of the stator water tank is connected with an inlet of the second water channel, and an outlet of the second water channel is connected with the condenser and used for discharging the cooling liquid; and a space surrounded by the front end cover, the rear end cover and the stator casing outside the stator winding is filled with heat dissipation glue.
Preferably, the first water channel is distributed in the front end cover, the second water channel is distributed in the rear end cover, and the stator water tank is distributed in the stator casing.
Preferably, the first water channel is spirally arranged in the front end cover in a threaded manner.
Preferably, the inlet of the first water passage is disposed at a side far from the stator housing, and the outlet of the first water passage is disposed at a side close to the stator housing.
Preferably, an inlet of the stator water tank is arranged at one side close to the front end cover, and an outlet of the stator water tank is arranged at one side close to the rear end cover.
Preferably, the second water channel is spirally arranged in the rear end cover in a threaded manner.
Preferably, the inlet of the second water passage is disposed at a side close to the stator housing, and the outlet of the second water passage is disposed at a side far from the stator housing.
Preferably, the first water channel, the stator water tank and the second water channel are connected by detachable hoses.
Preferably, the heat dissipation glue is in direct contact with the stator winding, the stator casing, the front end cover and the rear end cover.
Compared with the prior art, the beneficial effects of the utility model are that:
a rotating shaft inner hole is formed in a rotating shaft of the motor, a first water channel is formed in a front end cover, a stator water channel is formed in a stator shell, a second water channel is formed in a rear end cover, the rotating shaft inner hole, the first water channel, the stator water channel and the second water channel are connected in series through a water pipe to form a loop, cooling liquid enters from the rotating shaft inner hole, flows out from an outlet of the second water channel through a route of the rotating shaft inner hole, the first water channel, the stator water channel and the second water channel, can realize one-time circulation and cooling of the cooling liquid from the inside of the motor and the whole shell, replaces a plurality of complex and bulky cooling liquid loops with a large-circulation cooling liquid water channel, and does not need to be provided with a plurality of inlets and outlets of the cooling liquid.
The space enclosed by the stator winding, the front end cover, the rear end cover and the stator casing in the motor is filled with the heat dissipation glue with a larger heat conductivity coefficient, so that heat generated by the stator winding can be transferred to cooling liquid in the stator casing along the radial direction for cooling, and is transferred to the cooling liquid in the front end cover and the cooling liquid in the rear end cover along the axial direction for cooling, and the internal cooling effect of the motor is improved.
The utility model discloses a big circulation circuit of coolant liquid of pivot hole-first water course-stator basin-second water course for be covered with the coolant liquid in pivot and the motor housing, be aided with the heat dissipation and glue and transmit the inside stator winding heat of motor to the motor housing in, can all take away the heat that the mechanical loss of copper of stator winding, the iron loss of stator and rotor, the bearing produced through the coolant liquid, make the temperature of whole motor keep in the scope of preferred, and the structure is succinct, high durability and convenient use, and the radiating effect is effectively improved.
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 sectional view of a liquid cooling apparatus for a stator and a rotor of an electric motor;
fig. 2 is a schematic structural view of the front end cap and the rear end cap.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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.
Referring to fig. 1 and 2, a stator 3 and a rotor 2 liquid cooling device of a motor, the motor is of a symmetrical structure with a rotating shaft 1 as a central axis, the rotor 2 and the stator 3 are sequentially sleeved outside the rotating shaft 1, a stator winding 4 is arranged on the stator 3, a front end cover 6, a stator housing 5 and a rear end cover 7 are sequentially arranged at the outermost part of the motor along an axis direction, the stator housing 5 is installed outside the stator 3, a front bearing 8 is arranged between the front end cover 6 and the rotating shaft 1, and a rear bearing 9 is arranged between the rear end cover 7 and the rotating shaft 1; a rotating shaft inner hole 11 is formed in the rotating shaft 1 along the axis, the front end cover 6 and the rear end cover 7 are both cylindrical shells which are symmetrical about the rotating shaft 1, a first water channel 61 is formed in the cover body of the front end cover 6, a second water channel 71 is formed in the cover body of the rear end cover 7, a stator water tank 51 is formed in the stator casing 5, one end of the rotating shaft inner hole 11 is connected with a condenser and used for inputting cooling liquid, the other end of the rotating shaft inner hole 11 is connected with an inlet of the first water channel 61 through a hose 102, an outlet of the first water channel 61 is connected with an inlet of the stator water tank 51, an outlet of the stator water tank 51 is connected with an inlet of the second water channel 71, and an outlet of the second water channel 71 is connected with the condenser and used for discharging the cooling liquid; the space surrounded by the front end cover 6, the rear end cover 7 and the stator casing 5 outside the stator winding 4 is filled with heat dissipation glue 101.
The utility model discloses a 2 liquid cooling devices of stator 3 rotor, establish ties into a big return circuit that runs through the inside and outside motor with pivot hole 11 in the pivot 1 in the front end housing 6, first water course 61, stator basin 51 in the stator casing 5, second water course 71 in the rear end housing 7 through hose 102, the entry of coolant liquid in the big circulation circuit is connected as with the condenser to the one end of pivot hole 11, the export of second water course 71 is connected as the export of coolant liquid in the big circulation circuit with the condenser, the coolant liquid flows through pivot 1-front end housing 6-stator casing 5-rear end housing 7 along the route of pivot hole 11-first water course 61-stator basin 51-second water course 71 in proper order, from the motor is inside to the motor outside during the flow, play good radiating effect. In addition, the heat dissipation glue 101 is arranged inside the motor as an aid, and since the stator winding 4 is located inside the motor and is relatively far away from the rotating shaft inner hole 11 and the stator water tank 51, the heat dissipation glue 101 is filled around the stator winding 4, so that the heat of the stator winding 4 can be transmitted to the stator housing 5 through the heat dissipation glue 101 in the radial direction and transmitted to the front end cover 6 and the rear end cover 7 in the axial direction, and the heat is further taken away and cooled by the cooling liquid of the stator housing 5, the front end cover 6 and the rear end cover 7.
The utility model discloses a plurality of complicacies of will originally are enough to be swelled to coolant liquid return circuit improves into a succinctly, pleasing to the eye big circulation circuit, and the coolant liquid only needs an entry and an export, can take away the heat that the copper of stator winding 4 consumed, the iron loss of stator 3 and rotor 2, the mechanical loss of front bearing 8 and rear bearing 9 produced through the coolant liquid entirely for the temperature of whole motor keeps in the scope of preferred, and the structure is succinct, simple to use, and the radiating effect is effectively improved.
In one embodiment, the first water passage 61 is distributed inside the front cover 6, the second water passage 71 is distributed inside the rear cover 7, and the stator water tank 51 is distributed inside the stator housing 5. The first water channel 61 can be bent on the front end cover 6 and fully distributed on the whole cylindrical side surface of the front end cover 6, so that the area of the cooling liquid flowing through the front end cover 6 is larger, and the radiating effect is better; the second water channel 71 works the same.
In a more preferred embodiment, the first water channel 61 is spirally arranged in the front end cover 6 in a threaded manner, and the threads are spirally arranged on the cylindrical side surface of the front end cover 6, so that the first water channel 61 is uniformly distributed on the front end cover 6, and the cooling liquid flow path is not branched all the time, and the cooling effect can be achieved more quickly, uniformly and effectively.
Furthermore, the inlet of the first water channel 61 is arranged on one side far away from the stator casing 5, the outlet of the first water channel 61 is arranged on one side close to the stator 3 shell, the length of the connecting hose 102 can be reduced, the structure of the whole liquid cooling device is simpler, the installation is convenient, and meanwhile, the situations that the hose 102 is too long to be wound and knotted to block the cooling liquid loop are effectively prevented.
In an embodiment, the inlet of the stator water tank 51 is arranged on one side close to the front end cover 6, the outlet of the stator water tank 51 is arranged on one side close to the rear end cover 7, the length of the connecting hose 102 can be reduced, the structure of the whole liquid cooling device is simpler, the installation is convenient, and meanwhile, the situations that the cooling liquid loop is blocked and the like due to mutual winding and knotting caused by overlong hose 102 are effectively prevented.
In an embodiment, the second water channel 71 is spirally arranged in the rear end cover 7 in a threaded manner, so that the rear end cover 7 is uniformly filled with the second water channel 71, and the cooling liquid flow path is not branched all the time, which can achieve a cooling effect more quickly, uniformly and effectively. Further, an inlet of the second water passage 71 is provided at a side close to the stator housing 5, and an outlet of the second water passage 71 is provided at a side far from the stator housing 5.
In one embodiment, the first water channel 61, the stator water tank 51 and the second water channel 71 are connected by a detachable hose 102, so that the hose 102 can be replaced conveniently.
In an embodiment, the heat dissipation adhesive 101 directly contacts with the stator winding 4, the stator 3, the stator housing 5, the front end cover 6 and the rear end cover 7, so that the heat dissipation adhesive 101 can quickly and effectively transfer the heat of the stator winding 4 and the stator 3 to the stator housing 5 from the radial direction and transfer the heat to the front end cover 6 and the rear end cover 7 from the axial direction.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (9)
1. A stator and rotor liquid cooling device of a motor is of a symmetrical structure by taking a rotating shaft as a central shaft, wherein a rotor and a stator are sequentially sleeved outside the rotating shaft, a stator winding is arranged on the stator, a front end cover, a stator shell and a rear end cover are sequentially arranged at the outermost part of the motor along the axis direction, the stator shell is arranged outside the stator, a front bearing is arranged between the front end cover and the rotating shaft, and a rear bearing is arranged between the rear end cover and the rotating shaft; the method is characterized in that: a rotating shaft inner hole is formed in the rotating shaft along the axis, the front end cover and the rear end cover are both cylindrical shells which are symmetrical about the rotating shaft, a first water channel is formed in a cover body of the front end cover, a second water channel is formed in a cover body of the rear end cover, a stator water tank is formed in the stator casing, one end of the rotating shaft inner hole is connected with a condenser and used for inputting cooling liquid, the other end of the rotating shaft inner hole is connected with an inlet of the first water channel through a hose, an outlet of the first water channel is connected with an inlet of the stator water tank, an outlet of the stator water tank is connected with an inlet of the second water channel, and an outlet of the second water channel is connected with the condenser and used for discharging the cooling liquid; and a space surrounded by the front end cover, the rear end cover and the stator casing outside the stator winding is filled with heat dissipation glue.
2. The stator-rotor liquid cooling apparatus of an electric motor of claim 1, wherein: the first water channel is distributed in the front end cover, the second water channel is distributed in the rear end cover, and the stator water tank is distributed in the stator shell.
3. The apparatus of claim 2, further comprising: the first water channel is spirally arranged in the front end cover in a threaded manner.
4. A stator and rotor liquid cooling apparatus for an electric motor as recited in claim 3, wherein: the inlet of the first water channel is arranged on one side far away from the stator shell, and the outlet of the first water channel is arranged on one side close to the stator shell.
5. The apparatus of claim 2, further comprising: the inlet of the stator water tank is arranged at one side close to the front end cover, and the outlet of the stator water tank is arranged at one side close to the rear end cover.
6. The apparatus of claim 2, further comprising: the second water channel is spirally arranged in the rear end cover in a threaded manner.
7. The apparatus of claim 6, further comprising: the inlet of the second water channel is arranged at one side close to the stator shell, and the outlet of the second water channel is arranged at one side far away from the stator shell.
8. The stator-rotor liquid cooling apparatus of an electric motor of claim 1, wherein: the first water channel, the stator water tank and the second water channel are connected through detachable hoses.
9. The apparatus of claim 1, further comprising: the heat dissipation glue is in direct contact with the stator winding, the stator casing, the front end cover and the rear end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220564927.8U CN217508444U (en) | 2022-03-16 | 2022-03-16 | Stator and rotor liquid cooling device of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220564927.8U CN217508444U (en) | 2022-03-16 | 2022-03-16 | Stator and rotor liquid cooling device of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217508444U true CN217508444U (en) | 2022-09-27 |
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ID=83345610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220564927.8U Active CN217508444U (en) | 2022-03-16 | 2022-03-16 | Stator and rotor liquid cooling device of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217508444U (en) |
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2022
- 2022-03-16 CN CN202220564927.8U patent/CN217508444U/en active Active
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