CN213661386U - Electric oil pump assembly for actively cooling controller - Google Patents
Electric oil pump assembly for actively cooling controller Download PDFInfo
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- CN213661386U CN213661386U CN202022052457.0U CN202022052457U CN213661386U CN 213661386 U CN213661386 U CN 213661386U CN 202022052457 U CN202022052457 U CN 202022052457U CN 213661386 U CN213661386 U CN 213661386U
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- controller
- oil pump
- end cover
- rotor
- cooling
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- 238000001816 cooling Methods 0.000 title claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The utility model discloses an electric oil pump assembly for actively cooling a controller, which comprises a mechanical oil pump, a controller, a motor and a cooling oil circuit, wherein the mechanical oil pump comprises a rotor set, a lower end cover and a pump shell, the rotor set comprises an inner rotor and an outer rotor, the inner rotor is connected with a rotating shaft positioned in the center of the motor and runs at the same rotating speed, the lower end surface of the lower end cover is arranged as a heat conducting surface, a high-power heating device is arranged on the controller, the motor comprises an upper end cover, and an installation cavity of the controller is formed between the upper end cover and the lower end cover of the mechanical oil pump; the utility model discloses arrange the controller in entire system's centre, simultaneously with the controller on the big consumption device that generates heat be close to the lower end cover of mechanical oil pump for the system generates heat the device on the heavy load during operation controller and produces the heat can be transmitted for the main oil duct by the lower end cover as early as possible, lets the oil of cooling oil duct take away the heat fast, reduces the temperature of controller fast.
Description
Technical Field
The utility model relates to an electric oil pump specifically relates to an electric oil pump assembly who carries out active cooling to controller belongs to automobile spare and accessory part technical field.
Background
The electric oil pump on the market at present mainly has two arrangement structures;
the structure I is as follows: the oil pump and the brushless motor are integrated and arranged together, the controller is independently arranged at other places, and the controller and the brushless motor are connected with each other through a wiring harness and two ends/two sets of waterproof connectors for power supply and communication.
In practical use, since the vehicle-mounted power supply voltage is low (12V), the current on the wire harness is large, and the loss of the wire harness itself is very large. The two ends of the wire harness are respectively connected with the brushless motor and the controller through connectors, the connectors have unavoidable contact resistance, and under the condition of large current, connection loss caused by the contact resistance is also very large.
The problems brought by adopting the arrangement structure are that: 1. the efficiency of the whole system is reduced by 3-7%; 2. due to the existence of the wiring harness and the two sets of waterproof connectors, the cost of the whole system is obviously increased; 3. the controller does not have any active cooling, so that the power density of the controller is low and the volume of the controller is large.
The structure II is as follows: the oil pump, the brushless motor and the controller are integrally arranged together, wherein the oil pump is arranged at the front end, the brushless motor is arranged in the middle, and the controller is arranged at the rear end.
The problems brought by adopting the arrangement structure are that: the heat dissipation of controller mainly carries out natural convection heat dissipation through this body rear end heat dissipation muscle, although oil in the oil circuit also can take away partial heat through metal casing's transmission, but because the distance is far away, a brushless motor is still kept apart to the centre, the heat that can take away is very limited, lead to the volume of controller can not better optimization reduce, at whole car gearbox position, the electric oil pump mainly gives gearbox cooling, lubrication, the use of shifting gears, need account for a relatively great space, it is more difficult to arrange.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a to the not enough of prior art existence, provide a whole and arrange, save the waterproof connector at middle connecting wire harness and both ends carry out the electric oil pump assembly of initiative cooling to the controller.
In order to achieve the above object, the utility model provides an carry out active cooling's electric oil pump assembly to controller, including mechanical oil pump, controller, motor and cooling oil circuit, the mechanical oil pump is arranged in on the controller, the controller is arranged in on the motor, the mechanical oil pump includes rotor assembly, bottom end cover and pump casing, the rotor assembly comprises inner rotor and outer rotor, the inner rotor is connected and runs with the same rotational speed with the pivot that is located the motor center, the lower terminal surface of bottom end cover is established to the heat-conducting surface, be provided with high-power heating device on the controller, the motor includes the upper end cover, form the installation cavity of controller between the lower end cover of upper end cover and mechanical oil pump.
As a further improvement of the above scheme, the mechanical oil pump is provided with an oil inlet and an oil outlet, and the oil inlet and the oil outlet are arranged on the upper end face or the side face of the mechanical oil pump.
As a further improvement of the above scheme, one of a flat drive, an interference fit drive, a spline drive or a key groove drive connection mode is adopted between the inner rotor and the rotating shaft.
As a further improvement of the above solution, the rotor set is one of an internal-meshing rotor pump, an external-meshing gear pump and a vane pump.
As a further improvement of the scheme, the cooling oil path enters from the oil inlet, passes through a gap between the lower end face of the rotor set and the lower end cover and flows out from the oil outlet, and the lower end cover (5) is detachably connected with the pump shell in a screw and nut matching mode.
As a further improvement of the above scheme, the heat emitted from the high-power heating device is transferred to the cooling oil path through the heat conducting surface.
The utility model has the advantages that: the electric oil pump assembly for actively cooling the controller arranges the mechanical oil pump, the motor and the controller together, saves a connecting wire harness in the middle and waterproof connectors at two ends, reduces the cost of the whole system, and improves the system efficiency by 3-7%;
arrange the controller in entire system's centre, simultaneously with the lower end cover that the device that generates heat of big consumption on the controller is close to mechanical oil pump, make the system generate heat the device on the controller and produce the heat can be transmitted for the main oil duct by the lower end cover as early as possible when heavy load during operation, let the oil of cooling oil duct take away the heat fast, reduce the temperature of controller fast, thereby the power density of controller has been promoted, the effectual controller volume that has reduced, make entire system compacter, do benefit to the arrangement on whole car gearbox.
Drawings
Fig. 1 is a schematic structural diagram of an electric oil pump assembly for actively cooling a controller according to an embodiment of the present invention;
fig. 2 is a partial cross-sectional view of an electric oil pump assembly for actively cooling a controller according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of the rotor set of FIG. 2;
fig. 4 is a schematic structural view of the controller mounting cavity.
The parts of the drawings are numbered as follows: 1. a mechanical oil pump; 2. a controller; 3. a motor; 4. a rotor set; 5. a lower end cover; 6. a pump housing; 7. an inner rotor; 8. an outer rotor; 9. a high power heat generating device; 10. an upper end cover; 11. a heat conducting surface; 12. an oil inlet; 13. and an oil outlet.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
Example 1
As shown in fig. 1 to 4, an electric oil pump assembly for actively cooling a controller includes a mechanical oil pump 1, a controller 2, a motor 3 and a cooling oil path, the mechanical oil pump 1 is disposed on the controller 2, the controller 2 is disposed on the motor 3, the mechanical oil pump 1 includes a rotor set 4, a lower end cap 5 and a pump housing 6, the rotor set 4 is composed of an inner rotor 7 and an outer rotor 8, the inner rotor 7 is connected with a rotating shaft located at the center of the motor 3 and operates at the same rotating speed, the lower end face of the lower end cap 5 is set as a heat conducting face 11, a high-power heating device 9 is disposed on the controller 2, the motor 3 includes an upper end cap 10, and an installation cavity of the controller 2 is formed between the upper end cap 10 and the lower end cap 5 of the mechanical oil pump 1.
In this embodiment, the mechanical oil pump 1 is provided with an oil inlet 12 and an oil outlet 13, as shown in fig. 2, the oil inlet 12 and the oil outlet 13 are disposed on an upper end surface of the mechanical oil pump 1, and positions of the oil inlet 12 and the oil outlet 13 may be adjusted according to a structural design of an engine or a transmission in actual use, or may be placed on a side surface of the mechanical oil pump.
As shown in fig. 3, the rotor set 4 is an internal-meshing rotor pump, and in practical application, other mechanical oil pump modes such as an external-meshing gear pump and a vane pump can be selected, the inner rotor 7 and the rotating shaft are in flat driving connection, and in practical application, other connection modes such as interference fit driving, spline driving, or key slot driving can be selected; in addition, in practical application, the mechanical oil pump 1 and the motor 3 may have a driving shaft, that is, the driving shaft of the motor 3 drives the shaft of the mechanical oil pump 1, and then the shaft of the mechanical oil pump 1 directly drives the inner rotor 7.
Further, the cooling oil path enters from the oil inlet 12, passes through a gap between the lower end face of the rotor set 4 and the lower end cover 5, and then flows out from the oil outlet 13, the lower end cover 5 and the pump housing 6 are detachably connected through screw and nut matching, and heat emitted from the high-power heating device 9 is transferred to the cooling oil path through the heat conducting surface 11.
The cooling oil way is a main oil way of the mechanical oil pump 1, and oil in an oil tank of the engine or the gearbox enters from the oil inlet 12 and returns to the oil tank of the engine or the gearbox from the oil outlet 13; the heat emitted from the high-power heating device 9 is transferred to the main oil way through the heat conducting surface 11 of the lower end cover 5, so that the heat is rapidly carried away by the oil in the main oil way.
In summary, according to the electric oil pump assembly for actively cooling the controller in the above embodiment, the mechanical oil pump, the motor and the controller are arranged together, so that a middle connecting wire harness and waterproof connectors at two ends are omitted, the cost of the whole system is reduced, and the system efficiency is improved by 3% -7%;
arrange the controller in entire system's centre, simultaneously with the lower end cover 5 that the device that generates heat of big consumption on the controller is close to mechanical oil pump, make the system generate heat the device on the controller and produce the heat and can be given the main oil duct by lower end cover 5 transmission as early as possible when heavy load during operation, let the oil of cooling oil duct take away the heat fast, reduce the temperature of controller fast, thereby the power density of controller has been promoted, the effectual controller volume that has reduced, make entire system compacter, do benefit to the arrangement on whole car gearbox.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides an electric oil pump assembly who carries out initiative cooling to controller, includes mechanical oil pump (1), controller (2), motor (3) and cooling oil circuit, its characterized in that: the mechanical oil pump (1) is arranged on the controller (2), the controller (2) is arranged on the motor (3), the mechanical oil pump (1) comprises a rotor set (4), a lower end cover (5) and a pump shell (6), the rotor set (4) comprises an inner rotor (7) and an outer rotor (8), the inner rotor (7) is connected with a rotating shaft located at the center of the motor (3) and runs at the same rotating speed, the lower end face of the lower end cover (5) is arranged as a heat conducting face (11), a high-power heating device (9) is arranged on the controller (2), the motor (3) comprises an upper end cover (10), and an installation cavity of the controller (2) is formed between the upper end cover (10) and the lower end cover (5) of the mechanical oil pump (1).
2. The electric oil pump assembly for actively cooling a controller as set forth in claim 1, wherein: the oil pump is characterized in that an oil inlet (12) and an oil outlet (13) are arranged on the mechanical oil pump (1), and the oil inlet (12) and the oil outlet (13) are arranged on the upper end face or the side face of the mechanical oil pump (1).
3. The electric oil pump assembly for actively cooling a controller as set forth in claim 1, wherein: and one of a flat driving mode, an interference fit driving mode, a spline driving mode or a key groove driving connection mode is adopted between the inner rotor (7) and the rotating shaft.
4. The electric oil pump assembly for actively cooling a controller as set forth in claim 1, wherein: the rotor set (4) is one of an internal meshing rotor pump, an external meshing gear pump and a vane pump.
5. The electric oil pump assembly for actively cooling a controller as set forth in claim 1, wherein: the cooling oil way enters from the oil inlet (12), passes through a gap between the lower end face of the rotor set (4) and the lower end cover (5) and then flows out from the oil outlet (13), and the lower end cover (5) and the pump shell (6) are detachably connected through matching of screws and nuts.
6. The electric oil pump assembly for actively cooling a controller as set forth in claim 1, wherein: the heat emitted by the high-power heating device (9) is transferred to the cooling oil circuit through the heat conducting surface (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022052457.0U CN213661386U (en) | 2020-09-18 | 2020-09-18 | Electric oil pump assembly for actively cooling controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022052457.0U CN213661386U (en) | 2020-09-18 | 2020-09-18 | Electric oil pump assembly for actively cooling controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213661386U true CN213661386U (en) | 2021-07-09 |
Family
ID=76697088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022052457.0U Active CN213661386U (en) | 2020-09-18 | 2020-09-18 | Electric oil pump assembly for actively cooling controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213661386U (en) |
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2020
- 2020-09-18 CN CN202022052457.0U patent/CN213661386U/en active Active
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Address after: No. 33 Longzi Road, Wujin National High tech Industrial Development Zone, Changzhou City, Jiangsu Province, 213100 Patentee after: Dechang Drive Technology (Changzhou) Co.,Ltd. Country or region after: China Address before: 213164 A2, fengshu Industrial Park, 7 Xinhui Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: Shiteke fluid power system (Changzhou) Co.,Ltd. Country or region before: China |