CN110022034A - A kind of motor and the integrated cooling oil path system of drive control device - Google Patents
A kind of motor and the integrated cooling oil path system of drive control device Download PDFInfo
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- CN110022034A CN110022034A CN201910182567.8A CN201910182567A CN110022034A CN 110022034 A CN110022034 A CN 110022034A CN 201910182567 A CN201910182567 A CN 201910182567A CN 110022034 A CN110022034 A CN 110022034A
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- oil
- cooling oil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses the cooling oil path systems that a kind of motor and drive control device are integrated, comprising: remittance oil pocket, and stator cooling oil path, rotor cooling oil road and controller cooling oil path integrated with remittance oil pocket respectively；Oil pocket converge for collecting stator cooling oil path, rotor cooling oil road and controller cooling oil path, realizes to the cooling simultaneously of motor stator, rotor and drive control device under the limited occasion in space, so that the heat of heater element is quickly taken away in motor and controller.In the present invention, cooling oil is provided for rotor cooling oil road using the pressure drop of remittance oil pocket higher-pressure region and low-pressure area, system is very compact, high reliablity；The low-pressure area of remittance oil pocket is directly connected to controller cooling oil path, but also system is more integrated, stator cooling oil path, rotor cooling oil road and controller cooling oil path are pooled to the low-pressure area of oil pocket, entire oil cooled system system is flowed out from the general export in low-pressure area again, system is very integrated, compact.
Description
Technical field
The invention belongs to motor cooling technologies, integrate more particularly, to a kind of motor and drive control device cold
But oil piping system.
Background technique
High power density motor has the characteristics that unit volume or Unit Weight can export biggish power, especially suitable
The occasion for having strict demand to motor volume and weight in aerospace, electric car etc. is closed, the power of this kind of motor is high, radiates
Area is relatively small, and generally not applicable forced air cooling generallys use oily cold or water cooling for motor body and drive control device
Mode heat generating components is cooled down.It is compared to water cooling, the direct contact heating part of coolant liquid can be made using oil is cold, dissipated
Thermal effect is good, and the temperature of motor component such as iron core, winding and magnet steel and driver chip can be greatly lowered,
And cooling oil is insulation, in aerospace etc. to the very high occasion of security requirement, oil cooled system is united compared with water cooling system
It unites safer, so being widely adopted.For motor and drive control device system, the part to be cooled down is more, has motor fixed
Sub- iron core and winding, rotor magnetic steel and driver are bound to cause pipeline and connector according to general separate type piping connection
Numerous, oil pipe cabling is complicated, on the one hand makes the reduction of cooling oil path security of system, failure rate increases, on the other hand in aviation
Deng to electric system space and weight have the occasion strictly limited, the oil circuit connection system of separate type can be commonly installed any more, and
Numerous connectors also will increase the weight of system, so a kind of cooling oil path system of integrated form must be designed, so that the oil is cold
System can not only be effectively reduced the temperature of motor and driver, but can guarantee oil cooled system road integrated level under the overall leadership is high, system is simple,
High reliablity.
Summary of the invention
In view of the drawbacks of the prior art, the cooling integrated the purpose of the present invention is to provide a kind of motor and drive control device
Oil piping system, it is intended to solve the low technical problem of cooling efficiency in the prior art.
The present invention provides the cooling oil path systems that a kind of motor and drive control device are integrated, comprising: remittance oil pocket, Yi Jifen
Not stator cooling oil path, rotor cooling oil road and the controller cooling oil path integrated with remittance oil pocket；Oil pocket converge for collecting stator
Cooling oil path, rotor cooling oil road and controller cooling oil path, realize under the limited occasion in space to motor stator, rotor and
Drive control device is cooling simultaneously, so that the heat of heater element is quickly taken away in motor and controller.When work, cooling oil from
Oil inlet enters the stator cooling oil path, and the higher-pressure region of the remittance oil pocket is flowed into from the oil outlet of the stator cooling oil path
In cavity and in the controller cooling oil path, the stator cooling oil path, the rotor cooling oil road and the controller
Cooling oil path converges in the low-pressure area cavity for converging oil pocket, then flows out from the outlet of cooling oil path system.
The invention discloses the integrated cooling oil path system structure of a kind of motor and drive control device is excellent with what is integrated
Gesture, can be cooling simultaneously to motor stator, rotor and drive control device under the limited occasion in space, further increase motor and
The power density of drive control device totality, while keeping system oil-way more compact, reliability is compared to the numerous of separate type
Pipe fitting is also high.The integrated cooling oil circuit structure ensure that the heat of heater element in motor and controller is quickly taken away,
Each components work is in its reliable operating temperature range, so that the reliability and power density of system are mentioned simultaneously
It rises.
Further, the oil pocket that converges includes: symmetrically arranged higher-pressure region cavity and low-pressure area cavity, and is arranged in high pressure
The hole passed through on the plane of symmetry of area's cavity and low-pressure area cavity for cooling oil；Higher-pressure region cavity has an oil inlet and two
Oil outlet, the oil inlet of higher-pressure region cavity are arranged on the asymmetric face of higher-pressure region cavity and are used for and the stator cooling oil path
Oil outlet connection；First oil outlet of higher-pressure region cavity is arranged on the plane of symmetry of higher-pressure region cavity and for cooling with rotor
The oil inlet of oil circuit is connected to；Second oil outlet of higher-pressure region cavity is arranged on the plane of symmetry of higher-pressure region cavity and is used for and low pressure
First oil inlet of area's cavity is connected to；Low-pressure area cavity tool is there are two oil inlet and an oil outlet, and the second of low-pressure area cavity
Oil inlet is connected to the oil outlet on rotor cooling oil road；The third oil inlet of low-pressure area cavity is fuel-displaced with controller cooling oil path
Mouth connection；Outlet of the oil outlet of low-pressure area cavity as cooling oil path system.
Further, stator cooling oil path includes: oil inlet, oil outlet and oil flinger ring；Oil flinger ring is coaxially set with casing
It sets, and the internal engagement of the iron core of the outer wall of oil flinger ring and the stator, the yoke portion of the iron core of stator is provided with multiple be used for
The hole that cooling oil passes through；The oil inlet is arranged on drive end bearing bracket for providing import for cooling oil；The oil outlet setting exists
For providing outlet for cooling oil on rear end cap.
Wherein, the oil inlet of stator cooling oil path is the import of entire cooling oil path system；Stator cooling oil path it is fuel-displaced
Mouth is connect with the higher-pressure region of remittance oil pocket.Specific connection type are as follows: for the oil outlet of stator oil circuit on rear end cap, oil outlet is pipe
The form of connector is converged the pipe fitting on oil pocket higher-pressure region and connect with being fixed on by oil pipe, and this connection type is by stator oil circuit
It is integrated with remittance oil pocket, so that system is more succinct, the quantity of pipeline and connector is reduced, and oil piping system arranges difficulty drop
It is low.
Further, there are four oil outlets for stator cooling oil path tool, equal respectively along the circumferencial direction of the rear end cap
Even distribution, wherein three oil outlets are connected to remittance oil pocket higher-pressure region, the oil inlet of an oil outlet and controller cooling oil path connects
It is logical.
Further, rotor cooling oil road includes: oil inlet, the axis of rotor, oil outlet and petroleum pipeline；The axis of rotor is
Hollow structure and axially open at one end；Petroleum pipeline is co-axially located in the hollow structure of the axis of rotor, and petroleum pipeline is outer
Diameter is less than the diameter of hollow structure, and petroleum pipeline is interior and the access between oil transportation pipe outer wall and hollow structure inside is as cooling oil
Access；One end of the oil inlet on rotor cooling oil road is connected to the higher-pressure region cavity of remittance oil pocket, the oil inlet on rotor cooling oil road
The other end of mouth is connected to petroleum pipeline；One end of the oil outlet on rotor cooling oil road and oil transportation pipe outer wall and hollow structure inside
Between access connection, the other end of the oil outlet on the rotor cooling oil road is connected to the low-pressure area cavity of remittance oil pocket.
Wherein, the inlet end face of petroleum pipeline is overlapped with the hole in remittance oil pocket higher-pressure region, allows cooling oil successfully from remittance
The higher-pressure region of oil pocket enters in rotor petroleum pipeline, and petroleum pipeline is inserted into rotor semi-hollow axis, and the two center line is overlapped, and petroleum pipeline
Threshold value rotor semi-hollow shafting oil a distance flows into axis inner hole convenient for cooling oil from petroleum pipeline, cooling shaft, dynamic sealing
It is fixed on shaft end portion and contacts fixation with controller radiator support ring, prevent cooling oil from flowing to outside axis, and form oil duct, it is cold
But oil enters the oil duct in controller radiator support ring from the outflow of semi-hollow axis, the oil duct in controller radiator support ring with
The semi-circular shape hole of remittance oil pocket low-pressure area communicates, and cooling oil is allowed to enter remittance from the oil duct in controller radiator support ring
In oil pocket low-pressure area.The advantage designed in this way be can by rotor oil circuit with converge oil pocket it is highly integrated together with so that system
More succinct, the quantity of pipeline and connector is reduced, and oil piping system arranges that difficulty reduces.
Further, controller cooling oil path includes: oil inlet, oil outlet, the first cavity being symmetrically closely arranged and
Second cavity, and the hole passed through on the plane of symmetry of the first cavity and the second cavity for cooling oil is set；Controller is cooling
One end of the oil inlet of oil circuit is arranged on the asymmetric face of the first cavity, the other end of the oil inlet of controller cooling oil path with
The outlet of stator cooling oil path；The asymmetric face of the second cavity is arranged in one end of the oil outlet of controller cooling oil path
On, the other end of the oil outlet of controller cooling oil path is connected to remittance oil pocket low-pressure area.
Wherein, the oil outlet of controller cooling oil path is connect with the low-pressure area of remittance oil pocket, the controller cooling oil path
Oil inlet is connect with an oil outlet of stator oil circuit, and the oil in a part of stator oil circuit is taken to enter controller, cooling controller；
Controller oil circuit is divided into two chambers up and down by oil duct partition, and cooling oil is set from controller oil circuit, the partition of oil duct
It is equipped with the hole led to for oil stream, cooling oil can be made to flow into following cavity, controller oil circuit and the oil pocket that converges from cavity above
Between there is partition to separate, cavity below controller oil circuit and the partition converged between oil pocket low-pressure area have the hole for flow of oil,
Cooling oil inside controller is flowed into and converges oil pocket low-pressure area, then from converging oil pocket low-pressure area outflow system.
Good heat dissipation effect of the present invention, compact-sized, whole cooling oil path system altitude is integrated, reduces the volume of system
And weight, so that the difficulty of system arrangement substantially reduces.
It in the present invention, converges the higher-pressure region of oil pocket and collects the fuel-displaced of stator cooling oil path, then concentrate from converging the low pressure of oil pocket
Total oil outlet outflow system；The higher-pressure region of remittance oil pocket is connect with rotor cooling oil road oil inlet, and low-pressure area is connect with oil outlet, benefit
The pressure drop of oil pocket higher-pressure region and low-pressure area of using foreign currency provides cooling oil for rotor cooling oil road, and system is very compact, high reliablity；It converges
The low-pressure area of oil pocket is directly connected to controller cooling oil path, but also system is more integrated, stator cooling oil path, rotor cooling
Oil circuit and controller cooling oil path are pooled to the low-pressure area of oil pocket, then flow out entire oil cooled system from the general export in low-pressure area
System, system are very integrated, compact.On the other hand, the oil pocket that converges not is an individual space, but one of controller radiator
Point, it can radiate for controller power module, further increase the power density of electric system and the integrated level of system.
Contemplated above technical scheme through the invention, compared with prior art, the present invention have following technological merit:
(1) present invention is compact-sized by by stator cooling oil path and the integrating so that oil circuit is evenly distributed of oil pocket of converging.Tool
Body, the oil pocket that converges plays the fuel-displaced effect for collecting motor stator cooling oil path, the pressure of stator oil outlet is on the one hand balanced,
So that the distribution of stator cooling oil path is more uniform, on the other hand greatly reduce the design of pipeline and pipe fitting, so that system simplifies,
It is compact-sized；If not using integrated cooling oil path scheme, the volume of entire cooling oil path system will increase, and weight can also increase
Add, declines so as to cause the power density of system.In the case where being limited by stringent space electric system, isolated stator
Cooling oil path cannot be met the requirements.
(2) present invention is by by rotor cooling oil road and converging the integrated of oil pocket so that system simplifies, high reliablity.
Specifically, since the space on rotor cooling oil road is very narrow, installation rotor cooling oil road binders pipe disengaging connector is empty
Between it is limited, be inconvenient, by rotor cooling oil road and converge oil pocket Integrated design be a kind of extraordinary solution, utilize converge oil
The pressure difference of chamber higher-pressure region and low-pressure area provides a certain amount of cooling oil for rotor cooling oil road.The structure is very compact, reduces pipe
The design on road and pipe fitting, so that system simplifies, high reliablity.If not using integrated cooling oil path scheme, entire cooling oil
The volume of road system will increase, and weight also will increase, and decline so as to cause the power density of system.General power density is higher
Space in motor at rotor is all extremely compact, if desired using the cold scheme of rotor oil, integrated Cooling Design be it is critically important, point
From rotor cooling oil road be not able to satisfy the limitation in space generally.
(3) present invention by by controller cooling oil path and converge oil pocket integrate so that heat-sinking capability is further mentioned
It rises.
Specifically, the outlet of controller cooling oil path with converge the low-pressure area of oil pocket and be connected, reduction pipeline and pipe fitting
Design so that system simplify, it is compact-sized, at the same converge oil pocket be controller radiator a part, can radiate to controller,
Promote the heat-sinking capability of controller radiator further, the power density of controller can do more, because being limited
The problem of importance that the power density of controller processed is promoted is exactly controller heat dissipation.If not using integrated design,
On the one hand, the heat-sinking capability of controller reduces, and on the other hand the volume and weight of cooling oil path system can also be made to increase, it is more difficult to
Meet the space of electric system and the limitation of weight.
(4) present invention by converge oil pocket structure be designed so that system simplify, it is compact-sized, further improve
The integrated level of system, lifting system power density.
Specifically, the design of oil pocket of converging is in order to cooling to motor stator cooling oil path, rotor cooling oil road and controller
Oil circuit provides integrated interface, so that entire oil cooled system system is integrated by remittance oil pocket, if the not remittance oil pocket, motor
Stator cooling oil path, rotor cooling oil road, controller cooling oil path it is highly integrated together extremely difficult.Remittance oil pocket and motor
Stator cooling oil path, the highly integrated design of rotor cooling oil road, controller cooling oil path reduce the design of pipeline and pipe fitting,
So that system simplifies, and it is compact-sized, it can satisfy the space of electric system and the limitation of weight, high reliablity；Converge oil pocket simultaneously
A not individual space, and it is designed to a part of controller radiator, it can radiate for the power device of controller,
Further improve the integrated level of system, lifting system power density.
Detailed description of the invention
Fig. 1 is the structural representation of the integrated cooling oil path system of motor provided in an embodiment of the present invention and drive control device
Figure；
Fig. 2 be motor stator in the integrated cooling oil path system of motor provided in an embodiment of the present invention and drive control device,
Rotor cooling oil road and oil pocket attachment structure schematic diagram of converging；
Fig. 3 is to converge oil pocket and control in the integrated cooling oil path system of motor provided in an embodiment of the present invention and drive control device
Device radiator inner oil way structure schematic diagram processed.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The invention discloses the cooling oil path systems that a kind of motor and drive control device are integrated；The system includes four parts oil
Road: stator cooling oil path, rotor cooling oil road, controller cooling oil path and the oil pocket that converges, wherein stator cooling oil path, rotor are cooling
Oil circuit and controller cooling oil path become an integrated cooling oil path system, structure is very tight by the connection with remittance oil pocket
It gathers.This structure guarantees that oil cooled system road integrated level under the overall leadership is high, system is simple, high reliablity, while improving motor and driving control
The cooling efficiency of device processed reduces the temperature of motor and drive control device, is safely operated electric system.
The cooling oil path system that motor provided by the invention and drive control device integrate is as shown in Figure 1, the cooling oil path system
System is made of four flow paths: motor stator cooling oil path, rotor cooling oil road, controller cooling oil path and the oil pocket that converges.It is cooling
Oil enters motor stator cooling oil path from motor stator oil inlet first, then comes out from the end cap of the motor other end, outlet point
Be four, wherein three outlets with converge the higher-pressure region of oil pocket and be connected, remaining one outlet and controller cooling oil path into
Mouth is connected, and is controller fuel feeding, and the import on rotor cooling oil road is connect with the higher-pressure region of remittance oil pocket, exports low with remittance oil pocket
Pressure area is connected, and the outlet of controller cooling oil path is connect with the low-pressure area of remittance oil pocket.Motor stator cooling oil path, rotor are cooling
Oil circuit and controller cooling oil path converge in the low-pressure area of remittance oil pocket, the outlet outflow motor and controller collection Cheng Leng total from one
But oil piping system.
For the motor and driving control system of this secondary design, dominant loss is divided into four parts: motor stator iron loss
With the loss of copper loss, the eddy-current loss of rotor magnetic steel, controller power device, so this three parts require design cooling oil path
Heater element is cooled down, guarantees its work in the range of safety, the design of oil pocket of converging is in order to integrated entire cooling
Oil piping system.In this four flow paths, stator cooling oil path is made of motor case and oil flinger ring, and cooling oil directly flows through
Stator core yoke portion and winding overhang, can heater element such as stator core and winding to stator it is directly cooling；Rotor is cooling
Oil circuit is made of the petroleum pipeline in semi-hollow shaft and insertion axis；Controller cooling oil path divides in controller radiator
For upper and lower two chambers；Oil pocket converge in controller radiator, is divided into the area Liang Ge, remittance oil pocket higher-pressure region and the oil pocket low-pressure area that converges, such as
Shown in Fig. 1 and Fig. 2.
Integrated oily air-cooled structure provided by the invention is very compact, can simultaneously effective cool down motor stator, rotor and drive
Movement controller, and make entire motor and driving control system compact-sized, whole power density is further promoted.
In the embodiment of the present invention, the design of stator cooling oil path as shown in the dotted line frame of the upper left side Fig. 1, stator cooling duct by
Casing inner wall face, front end interior surface, rear end interior surface, oil flinger ring and stator core yoke portion hole composition, cooling oil by
Oil inlet on drive end bearing bracket enters motor stator, first impact electric motor winding end, cools down, then passes through to winding overhang
The channel in stator core yoke portion, the i.e. hole in stator core yoke portion cool down stator core, heat, that is, motor stator of winding in slot
Copper loss is also largely led in stator core by thermally conductive, is taken away by cooling oil；After cooling oil flows through the channel of rear of core, meeting
Another end for reaching winding, cools down the winding overhang of motor, the oil outlet then covered from motor rear end leaves
Stator cooling oil path.In order to which the flow of stator cooling oil path cooling oil is distributed as far as possible uniformly in a circumferential direction, motor oil circuit
Outlet is generally not less than four, if this four outlets are gone out respectively, needs four pipe fittings, and extremely complex, if logical using 5
Connector can account for a big chunk space and weight, and structure is complicated, collect again so designing the oil that remittance oil pocket exports motor
Get up, flows out cooling oil path system inside a pipe together, undertake and collect the fuel-displaced task of motor stator.
Why the present invention integrates stator cooling oil path and remittance oil pocket, the purpose is to oil circuit be made to be evenly distributed,
It is compact-sized.Specifically, the oil pocket that converges plays the fuel-displaced effect for collecting motor stator cooling oil path, on the one hand balances stator and goes out
On the other hand the pressure of hydraulic fluid port greatly reduces the design of pipeline and pipe fitting, makes so that the distribution of stator cooling oil path is more uniform
The system of obtaining simplifies, compact-sized；If not using integrated cooling oil path scheme, the volume of entire cooling oil path system will increase,
Weight also will increase, and decline so as to cause the power density of system.In the case where being limited by stringent space electric system,
Isolated stator cooling oil path cannot be met the requirements.
In the embodiment of the present invention, rotor cooling oil road and the integrated as shown in Fig. 2 and Fig. 3 of oil pocket that converge, rotor cooling oil road
Composition as shown in Fig. 2, rotor cooling oil road includes: oil inlet, the axis of rotor, oil outlet and petroleum pipeline；During the axis of rotor is
Hollow structure and axially open at one end；Petroleum pipeline is co-axially located in the hollow structure of the axis of rotor, and the outer diameter of petroleum pipeline
Less than the diameter of hollow structure, petroleum pipeline is interior and the access between oil transportation pipe outer wall and hollow structure inside is as cooling oil
Access；One end of the oil inlet on rotor cooling oil road is connected to the higher-pressure region cavity of remittance oil pocket, the oil inlet on rotor cooling oil road
The other end be connected to the petroleum pipeline；Inside one end of the oil outlet on rotor cooling oil road and oil transportation pipe outer wall and hollow structure
Between access connection, the other end of the oil outlet on rotor cooling oil road is connected to the low-pressure area cavity of remittance oil pocket.Cooling oil
Flow path is as shown by the arrows in figure 2.Cooling oil enters petroleum pipeline by controller sink side face from the higher-pressure region of remittance oil pocket, so
After flow through rotor cavity inner wall, cooling rotor, the heat that the loss of entire rotor, the mainly eddy-current loss of magnet steel generate is logical
Cross it is thermally conductive lead on axis, then taken away by cooling oil, after cooling oil flows through rotor cavity inner wall, flow through controller radiator branch
Pushing out ring inner surface, then flows to the low-pressure area of remittance oil pocket from the semi-circular shape hole of controller radiator end face, and outflow rotor is cooling
Oil circuit.Since the space at rotor petroleum pipeline is very narrow, installation rotor cooling oil road binders pipe fitting space is limited, very not
Just, it is contemplated that rotor cooling oil road only needs certain pressure difference that a certain amount of cooling oil can be driven to flow into rotor cavity, institute
Two cavitys are designed to will converge oil pocket, the oil pocket that will converge is designed to two cavitys, and a pressure height is known as converging oil pocket higher-pressure region, one
A pressure is low to be known as remittance oil pocket low-pressure area, as depicted in figs. 1 and 2, so directly the oil inlet and remittance oil on rotor cooling oil road
The higher-pressure region of chamber connects, and exports and connect with the low-pressure area of remittance oil pocket, is to turn using the pressure difference of remittance oil pocket higher-pressure region and low-pressure area
Sub- cooling oil path provides cooling oil mass, solves rotor cooling oil road import and export narrow space and is not easy to installation oil connection
Problem, so that system is more integrated and compact, reliability is higher.
In the embodiment of the present invention, controller cooling oil path and converge oil pocket integrated and controller cooling oil path design by
Shown in Fig. 2 and Fig. 3, controller radiator is the cavity of a rectangular shape, and centre has partition to be classified as two chambers up and down,
There is hole on partition, upper and lower two chambers connection forms oil duct, and the oil outlet of controller cooling oil path and the low-pressure area of remittance oil pocket connect
It connects, reduces the use of pipeline and pipe fitting, so that system is more integrated and compact, reliability is higher.
In the embodiment of the present invention, as shown in Fig. 2, remittance oil pocket is a part of controller radiator cavity, it will be converged with partition
Oil pocket and controller radiator oil circuit separate, then remittance oil pocket is divided into two parts with partition, and a part is remittance oil pocket higher-pressure region, one
It is partially remittance oil pocket low-pressure area, intermediate partition aperture connects higher-pressure region and low-pressure area, the oil circuit of remittance oil pocket formed, such as Fig. 2 institute
Show.The effect of oil pocket of converging is to collect stator cooling oil path, rotor cooling oil road and controller cooling oil path, first remittance oil pocket
The fuel-displaced of stator cooling oil path is collected in higher-pressure region, then concentrates total oil outlet outflow system of the low pressure from remittance oil pocket；Remittance oil pocket
Higher-pressure region is connect with rotor cooling oil road oil inlet, and low-pressure area is connect with oil outlet, using converging oil pocket higher-pressure region and low-pressure area
Pressure drop provides cooling oil for rotor cooling oil road, and system is very compact, high reliablity；The low-pressure area and controller of remittance oil pocket are cooling
Oil circuit is directly connected to, but also system is more integrated, stator cooling oil path, rotor cooling oil road and controller cooling oil path collect
Entire oil cooled system system is flowed out to the low-pressure area of remittance oil pocket, then from the general export in low-pressure area, system is very integrated, compact.It is another
Aspect, the oil pocket that converges not is an individual space, but a part of controller radiator, can be dissipated for controller power module
Heat further increases the power density of electric system and the integrated level of system.
Motor provided by the present invention and the cold integrated system of drive control device oil are compact-sized, motor stator cooling oil path,
Rotor cooling oil road and controller cooling oil path closely link together with remittance oil pocket, therefore can increase substantially oil cooled system
The integrated level of system, under conditions of meeting the heat dissipation performance of motor stator, rotor and controller, the simplification of oil cooled system system, integrated level
High and high reliablity.
It should be readily apparent to one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to limit
The system present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in
Within protection scope of the present invention.
Claims (7)
1. the cooling oil path system that a kind of motor and drive control device integrate characterized by comprising remittance oil pocket, and respectively
Integrated stator cooling oil path, rotor cooling oil road and controller cooling oil path with the remittance oil pocket；
The remittance oil pocket is used to collect the stator cooling oil path, the rotor cooling oil road and the controller cooling oil path,
It realizes to the cooling simultaneously of motor stator, rotor and drive control device under the limited occasion in space, so that in motor and controller
The heat of heater element is quickly taken away.
2. cooling oil path system as described in claim 1, which is characterized in that when work, cooling oil is from described in oil inlet entrance
Stator cooling oil path, it is out of the oil outlet of the stator cooling oil path flows into the remittance oil pocket higher-pressure region cavity and described
In controller cooling oil path, the stator cooling oil path, the rotor cooling oil road and the controller cooling oil path are described
Converge in the low-pressure area cavity of remittance oil pocket, then is flowed out from the outlet of cooling oil path system.
3. cooling oil path system as described in claim 1, which is characterized in that the remittance oil pocket includes: symmetrically arranged high pressure
Area's cavity and low-pressure area cavity, and be arranged on the plane of symmetry of higher-pressure region cavity and low-pressure area cavity and be used for what cooling oil passed through
Hole；
The higher-pressure region cavity has an oil inlet and two oil outlets, and the oil inlet of the higher-pressure region cavity is arranged described
On the asymmetric face of higher-pressure region cavity and for being connected to the oil outlet of the stator cooling oil path；The of the higher-pressure region cavity
One oil outlet is arranged on the plane of symmetry of the higher-pressure region cavity and for being connected to the oil inlet on the rotor cooling oil road；Institute
The second oil outlet for stating higher-pressure region cavity is arranged on the plane of symmetry of the higher-pressure region cavity and for the with low-pressure area cavity
The connection of one oil inlet；
Low-pressure area cavity tool there are two oil inlet and an oil outlet, the second oil inlet of the low-pressure area cavity with it is described
The oil outlet on rotor cooling oil road is connected to；The third oil inlet of the low-pressure area cavity is fuel-displaced with the controller cooling oil path
Mouth connection；Outlet of the oil outlet of the low-pressure area cavity as cooling oil path system.
4. cooling oil path system as described in claim 1, which is characterized in that the stator cooling oil path includes: oil inlet, goes out
Hydraulic fluid port and oil flinger ring；
The oil flinger ring and casing are coaxially disposed, and the inner wall of the iron core of the outer wall of oil flinger ring and the stator cooperates, in stator
The yoke portion of iron core be provided with multiple holes passed through for cooling oil；
The oil inlet is arranged on drive end bearing bracket for providing import for cooling oil；
The oil outlet is arranged on rear end cap for providing outlet for cooling oil.
5. cooling oil path system as claimed in claim 4, which is characterized in that there are four fuel-displaced for the stator cooling oil path tool
Mouthful, it is uniformly distributed respectively along the circumferencial direction of the rear end cap, wherein three oil outlets are connected to remittance oil pocket higher-pressure region, one
Oil outlet is connected to the oil inlet of controller cooling oil path.
6. cooling oil path system as described in any one in claim 1-5, which is characterized in that the rotor cooling oil road includes:
Oil inlet, the axis of rotor, oil outlet and petroleum pipeline；
The axis of the rotor is hollow structure and axially open at one end；The petroleum pipeline is co-axially located in the axis of rotor
In hollow structure, and the outer diameter of the petroleum pipeline is less than the diameter of the hollow structure, in the petroleum pipeline and oil transportation pipe outer wall
Access of the access as cooling oil between hollow structure inside；
One end of the oil inlet on the rotor cooling oil road is connected to the higher-pressure region cavity of remittance oil pocket, the rotor cooling oil road
The other end of oil inlet is connected to the petroleum pipeline；
One end of the oil outlet on the rotor cooling oil road is connected to the access between oil transportation pipe outer wall and hollow structure inside, institute
The other end for stating the oil outlet on rotor cooling oil road is connected to the low-pressure area cavity of remittance oil pocket.
7. cooling oil path system as claimed in any one of claims 1 to 6, which is characterized in that the controller cooling oil path packet
It includes: oil inlet, oil outlet, the first cavity and the second cavity being symmetrically closely arranged, and be arranged in the first cavity and the second chamber
The hole passed through on the plane of symmetry of body for cooling oil；
One end of the oil inlet of the controller cooling oil path is arranged on the asymmetric face of the first cavity, and the controller is cooling
The other end of the oil inlet of oil circuit and the outlet of stator cooling oil path；
One end of the oil outlet of the controller cooling oil path is arranged on the asymmetric face of the second cavity, and the controller is cooling
The other end of the oil outlet of oil circuit is connected to remittance oil pocket low-pressure area.
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| CN201910182567.8A CN110022034B (en) | 2019-03-11 | 2019-03-11 | Cooling oil circuit system integrating motor and drive controller |
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| CN201910182567.8A CN110022034B (en) | 2019-03-11 | 2019-03-11 | Cooling oil circuit system integrating motor and drive controller |
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| CN110022034B CN110022034B (en) | 2020-05-19 |
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| CN110707843A (en) * | 2019-08-09 | 2020-01-17 | 武汉理工大学 | Motor cooling structure and permanent magnet synchronous motor for electric automobile |
| CN111564927A (en) * | 2020-05-18 | 2020-08-21 | 珠海格力电器股份有限公司 | Hollow shaft sealing ring, hollow shaft, rotor structure, motor and electric automobile |
| CN112383171A (en) * | 2020-10-13 | 2021-02-19 | 速珂智能科技（上海）有限公司 | Oil-cooling heat dissipation type electric vehicle motor |
| CN113162267A (en) * | 2021-03-10 | 2021-07-23 | 安徽机电职业技术学院 | Integrated inner ring cooling type hub motor |
| CN113572289A (en) * | 2021-07-05 | 2021-10-29 | 合肥巨一动力系统有限公司 | Oil-cooling hollow rotating shaft structure |
| CN113595312A (en) * | 2021-07-21 | 2021-11-02 | 苏州英磁新能源科技有限公司 | Internal circulation cooling motor |
| CN114243997A (en) * | 2021-12-20 | 2022-03-25 | 盐城工学院 | Forced cooperative heat dissipation cooling device |
| WO2022082788A1 (en) * | 2020-10-23 | 2022-04-28 | 华为数字能源技术有限公司 | Electric motor, electric motor controller, heat exchange system, and control method |
| CN114631248A (en) * | 2019-11-06 | 2022-06-14 | 松果汽车株式会社 | Cooling structure for driving motor rotor |
| US20220352781A1 (en) * | 2021-04-29 | 2022-11-03 | Volvo Car Corporation | Electric machine |
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| CN113595312A (en) * | 2021-07-21 | 2021-11-02 | 苏州英磁新能源科技有限公司 | Internal circulation cooling motor |
| CN113595312B (en) * | 2021-07-21 | 2024-02-02 | 苏州英磁新能源科技有限公司 | Internal circulation cooling motor |
| CN114243997A (en) * | 2021-12-20 | 2022-03-25 | 盐城工学院 | Forced cooperative heat dissipation cooling device |
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