CN221299471U

CN221299471U - Cooling and lubricating electronic oil pump for new energy automobile

Info

Publication number: CN221299471U
Application number: CN202323522954.2U
Authority: CN
Inventors: 杨兴锋; 顾杰; 祁鹏飞; 李宏绪; 邓杰文
Original assignee: Jinjiang Yuanjing Hunan Intelligent Technology Co ltd
Current assignee: Jinjiang Yuanjing Hunan Intelligent Technology Co ltd
Priority date: 2023-12-23
Filing date: 2023-12-23
Publication date: 2024-07-09
Anticipated expiration: 2033-12-23

Abstract

The utility model discloses a cooling and lubricating electronic oil pump for a new energy automobile, which comprises an oil pump body consisting of a cycloid pump module, a brushless direct current motor module and a control system module. The flat contact pin type bus copper bar is used for connecting a driving power supply to realize current distribution, so that end wires of each winding are reduced, material and space requirements are reduced, and meanwhile, each phase of winding is simpler and arranged, and the installation is convenient. The pump head adopts the inner meshing cycloid pump gear, has the characteristics of small volume, light weight and compact structural space, and simultaneously has larger bearing capacity and bears stronger impact. The oil way adopts an end inlet side outlet mode, the oil outlet brings heat of the rotating shaft center of the motor to the shell from the side face through oil liquid to dissipate heat, and a pressure relief valve is arranged at the position of the oil outlet to control the maximum pressure. The intelligent control system can realize accurate control of pressure and flow, reduces redundant design, reduces cost and increases reliability of the system.

Description

Cooling and lubricating electronic oil pump for new energy automobile

Technical Field

The utility model relates to the technical field of oil pumps, in particular to a cooling and lubricating electronic oil pump for a new energy automobile.

Background

The automotive industry is undergoing a profound revolution from traditional fuel automobiles to new energy automobiles, and in particular, the improvement requirements on the functions and performances of new energy automobiles driven by motors are increasing, and the requirements on the heat generated by the working motors of the system and the cooling and lubricating systems of the transmission system are increasing: the electronic oil pump has the advantages of small size, light weight, high efficiency and intelligent control, and at present, certain blank exists for the research and the production of the 24V/650W high-power electronic oil pump in China.

Currently, there are some significant drawbacks to the use of oil pumps by existing vehicles. First, the large size of these oil pumps results in them taking up considerable space in the vehicle, which is certainly a problem for some vehicles where space is limited. Second, the weight of these oil pumps is heavy, so that the total weight of the vehicle increases, thereby affecting the fuel economy and running performance of the vehicle. Furthermore, these oil pumps have a low transmission efficiency, which means that there is a great deal of energy lost in pumping the oil from one place to another. Such low transmission efficiency not only reduces the working efficiency of the oil pump, but also increases the energy consumption of the vehicle.

Therefore, based on the above technical problems, it is necessary for those skilled in the art to develop a cooling and lubricating electronic oil pump for new energy automobiles.

Disclosure of utility model

The utility model aims to provide a cooling and lubricating electronic oil pump for a new energy automobile so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The technical scheme of the cooling and lubricating electronic oil pump for the new energy automobile comprises an oil pump body, wherein the oil pump body consists of a cycloid pump module, a brushless direct current motor module and a control system module, the cycloid pump module comprises a front end cover, an oil inlet is arranged on the front end cover, a pressure relief valve is arranged on the front end cover, a cycloid gear ring is arranged in the front end cover, and cycloid gears are arranged in the cycloid gear ring;

The brushless direct current motor module comprises a shell, an oil outlet is formed in the outer wall of the shell, a rotor assembly is arranged in the shell, a stator assembly is arranged on the outer side of the rotor assembly, a front framework and a rear framework are sequentially arranged between the stator assembly and the rotor assembly from bottom to top, and a wiring terminal is arranged on the rear framework;

The control system module comprises a control module shell, a contour block is arranged in the control module shell, a bus bar is arranged on one side of the contour block, a long contact pin and a short contact pin are arranged on the bus bar, a circuit board is arranged on one side, adjacent to the long contact pin, of the bus bar, a rear end cover is arranged on the outer side of the circuit board, and a plug connector is arranged on the rear end cover.

As a preferable technical scheme, a first sealing ring is arranged on the outer side of the brushless direct current motor module, a second sealing ring is arranged on the outer side of the cycloid pump module, and a bolt hole is formed in the control module shell.

As an optimized technical scheme, the front end cover is provided with a pump head casing bolt, and the pump head casing bolt is used for connecting the front end cover and the casing.

As a preferable technical scheme, the shell is provided with a screw, and the screw is used for connecting the shell and the control module shell.

As a preferable technical scheme, the rear end cover is provided with a rear end cover screw, and the rear end cover screw is used for connecting the rear end cover and the control module shell.

As an optimized technical scheme, the two side shaft ends of the rotor assembly are respectively provided with a rear bearing and a front bearing, the control module shell is provided with a bearing bush, the bearing bush is internally provided with a shaft end magnetic ring, and the bearing bush is matched with the rear bearing.

Compared with the prior art, the utility model has the beneficial effects that:

The utility model relates to a cooling and lubricating electronic oil pump for a new energy automobile, which adopts a brushless direct current motor and a flat pin type bus copper bar to be connected with a driving power supply, realizes current distribution, reduces the end wire winding of each winding, reduces the material and space requirements, simultaneously ensures that each phase of winding is more concise and aligned, facilitates the installation of an open winding framework, and ensures the alignment of winding without damage. The pump head adopts cycloidal pump gear internal engagement, has the characteristics of small volume, light weight and compact structural space, and simultaneously has larger bearing capacity and bears stronger impact. The oil way adopts an end inlet side outlet mode, the oil outlet brings heat of the rotating shaft center of the motor to the shell from the side face to dissipate heat through oil, and a pressure relief valve is arranged beside the oil outlet to control the maximum pressure. When the pressure exceeds a prescribed value, oil flows back from the relief valve to the oil pan. The intelligent control system is adopted to directly drive the oil pump, and the brushless direct current motor directly drives the cycloid pump, so that the installation space can be saved, and the transmission efficiency can be improved. The intelligent control system can realize accurate control of pressure and flow, reduces redundant design, reduces cost and increases reliability of the system.

Drawings

FIG. 1 is a schematic diagram of the whole structure of a cooling and lubricating electronic oil pump for a new energy automobile;

FIG. 2 is a schematic view of the bottom view structure of a cooling and lubricating electronic oil pump for a new energy automobile;

FIG. 3 is a schematic diagram of the internal structure of the front end cover of the cooling and lubricating electronic oil pump for the new energy automobile;

fig. 4 is a schematic diagram of the internal structure of a brushless dc motor module of a cooling and lubricating electronic oil pump for new energy automobiles;

Fig. 5 is a schematic diagram of the internal structure of the control system module of the rear end cover of the cooling and lubricating electronic oil pump for the new energy automobile.

In the reference numerals: 1. a gerotor pump module; 10. an oil inlet; 11. a front end cover; 12. cycloid gear ring; 13. cycloidal gears; 14. pump head casing bolts; 15. a pressure release valve; 2. a brushless DC motor module; 20. an oil outlet; 21. a housing; 22. a screw; 23. a front bearing; 24. a rotor assembly; 25. a rear bearing; 26. a front skeleton; 27. a stator assembly; 28. a rear skeleton; 29. a connection terminal; 3. a control system module; 30. a bearing bush; 31. a shaft end magnetic ring; 32. a control module housing; 33. a contour block; 34. a busbar copper; 341. a long pin; 342. a short pin; 35. a circuit board; 36. a rear end cover; 37. a rear end cap screw; 38. a plug-in component; 4. a first sealing ring; 5. bolt holes; 6. and a second sealing ring.

Detailed Description

Features and exemplary embodiments of various aspects of the present utility model will be described in detail below, and in order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It will be apparent to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model.

As shown in fig. 1-5, the utility model provides a technical scheme of a cooling and lubricating electronic oil pump for a new energy automobile, which comprises the following steps: the oil pump comprises an oil pump body, wherein the oil pump body consists of a cycloid pump module 1, a brushless direct current motor module 2 and a control system module 3. The cycloid pump module 1 mainly comprises a front end cover 11, wherein an oil inlet 10 is arranged on the front end cover 11 and used for inputting oil, and a pressure relief valve 15 is also arranged on the front end cover 11 so as to prevent the pressure of an oil outlet of an oil pump from being too high. The front end cover 11 is also internally provided with a cycloidal gear ring 12, and the cycloidal gear ring 12 is internally provided with a cycloidal gear 13, and the internal meshing structure has the advantages of small volume and light weight. The front end of the oil inlet 10 is also provided with a filter screen to prevent dust and metal scraps in an oil inlet oil path of the oil pump from entering the cycloid pump consisting of the cycloid gear ring 12 and the cycloid gear 13.

The brushless direct current motor module 2 mainly comprises a shell 21, wherein an oil outlet 20 is arranged on the outer wall of the shell 21 and is used for outputting oil. The casing 21 is internally provided with a rotor assembly 24, the outer side of the rotor assembly 24 is also provided with a stator assembly 27, a front framework 26 and a rear framework 28 are sequentially arranged between the stator assembly 27 and the rotor assembly 24 from bottom to top, and a wiring terminal 29 is further arranged on the rear framework 28.

The control system module 3 mainly comprises a control module shell 32, wherein a contour block 33 is arranged in the control module shell 32, the contour block 33 is used for forming an installation space of a circuit board 35 in the shell between the control module 32 and a rear end cover 36, and a long contact pin 341 and a short contact pin 342 are also arranged on the bus bar 34. A circuit board 35 is further arranged on one side of the long pin 341 on the bus copper bar 34, and each component on the circuit board 35 is controlled to perform PWM output through the wiring terminal 29 connected with the short pin 342 of the bus copper bar according to the rotating speed signal of the shaft end magnetic ring 31 and CAN communication information of the connector 36. The intelligent control system can accurately control the pressure and flow of the oil pump so as to meet the cooling and lubricating requirements under various working conditions and ensure the stable and safe operation of the vehicle.

The outside of the circuit board 35 is also provided with a rear end cover 36, the rear end cover 36 is made of an aluminum alloy material, and heat generated by the power devices on the circuit board 35 during working can be timely dissipated by the radiating fins made of the aluminum alloy material, so that the service life of the electronic components is prolonged, and the reliability of the control module is improved. The rear end cap 36 is also provided with a plug 38, and the plug 38 is used for connecting a vehicle 24V power supply and CAN communication.

The two side shaft ends of the rotor assembly 24 are respectively provided with a rear bearing 25 and a front bearing 23, the control module shell 32 is also provided with a bearing bush 30, and the bearing bush 30 is internally provided with a shaft end magnetic ring 31. The bearing bush 30 cooperates with the rear bearing 25, the front bearing 23 for supporting the front end of the rotor assembly 24, and the rear bearing 25 for supporting the rear end of the rotor assembly 24. The front armature 26 and the rear armature 28 are respectively fitted into the front and rear sections of the core of the stator assembly 27 to form the windings of each phase of the motor. Within the rear backbone 28 are nested corresponding terminals 29 which connect to shorting pins 342 on the buss bar 34.

The adoption of the bus bar copper 34 reduces end wire winding among windings, reduces winding difficulty and saves materials and space. The windings of each phase are more compact and aligned, and the buss bars 34 are embedded as inserts in the control module housing 32. The control module housing 32 is made of engineering plastic, and the contour blocks 33 are also embedded in the control module housing for interconnecting the housing 21, the control module housing 32 and the rear end cap 36.

As shown in fig. 1-5, a first sealing ring 4 is arranged on the outer side of the brushless direct current motor module 2, a second sealing ring 6 is arranged on the outer side of the cycloid pump module 1, a bolt hole 5 is arranged on the control module shell 32, a pump head shell bolt 14 is arranged on the front end cover 11, the pump head shell bolt 14 is used for connecting the front end cover 11 and the shell 21, a screw 22 is arranged on the shell 21, the screw 22 is used for connecting the shell 21 and the control module shell 32, a rear end cover screw 37 is arranged on the rear end cover 36, and the rear end cover screw 37 is used for connecting the rear end cover 36 and the control module shell 32.

In this embodiment, the first seal ring 4 and the second seal ring 6 are two very important components, and their functions are to tightly fix the electronic oil pump to the axle or the oil pan of the transmission of the new energy vehicle, so as to ensure that the oil pump does not leak oil. The material of the two sealing rings generally has high elasticity and sealing performance so as to ensure that the sealing rings can not lose the function after long-term use.

An electronic oil pump is a device driven by an electric motor that draws oil in from an oil inlet 10 and then into a cooling and lubrication circuit from an oil outlet 20 by pumping. This circuit is part of the cooling and lubrication system of the vehicle and can deliver oil to various parts of the vehicle that require lubrication. The bolt hole 5 is used for integrally fixing the electronic oil pump to the oil pan of the vehicle. These bolt holes generally correspond to threaded holes in the oil pan, and by inserting bolts and tightening, the electronic oil pump can be firmly fixed to the oil pan.

The working principle and the using flow of the utility model are as follows: after the utility model is installed, the utility model works according to the above embodiments until all working steps are completed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

In accordance with the above embodiments of the utility model, these embodiments are not exhaustive of all details, nor are they intended to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model and various modifications as are suited to the particular use contemplated. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The cooling and lubricating electronic oil pump for the new energy automobile is characterized by comprising an oil pump body, wherein the oil pump body consists of a cycloid pump module (1), a brushless direct current motor module (2) and a control system module (3), the cycloid pump module (1) comprises a front end cover (11), an oil inlet (10) is formed in the front end cover (11), a pressure relief valve (15) is arranged on the front end cover (11), a cycloid gear ring (12) is arranged in the front end cover (11), and cycloid gears (13) are arranged in the cycloid gear ring (12);

The brushless direct current motor module (2) comprises a machine shell (21), an oil outlet (20) is formed in the outer wall of the machine shell (21), a rotor assembly (24) is arranged in the machine shell (21), a stator assembly (27) is arranged on the outer side of the rotor assembly (24), a front framework (26) and a rear framework (28) are sequentially arranged between the stator assembly (27) and the rotor assembly (24) from bottom to top, and a wiring terminal (29) is arranged on the rear framework (28);

Control system module (3) are including control module casing (32), be equipped with contour block (33) in control module casing (32), contour block (33) one side is equipped with and converges copper bar (34), be equipped with long contact pin (341), short contact pin (342) on converging copper bar (34), long contact pin (341) adjacent one side is equipped with circuit board (35) on converging copper bar (34), the circuit board (35) outside is equipped with rear end cap (36), be equipped with plug connector (38) on rear end cap (36).

2. The cooling and lubricating electronic oil pump for a new energy automobile according to claim 1, wherein: the brushless direct current motor module (2) outside is equipped with sealing washer one (4), cycloid pump module (1) outside is equipped with sealing washer two (6), be equipped with bolt hole (5) on control module casing (32).

3. The cooling and lubricating electronic oil pump for a new energy automobile according to claim 1, wherein: the front end cover (11) is provided with a pump head casing bolt (14), and the pump head casing bolt (14) is used for connecting the front end cover (11) and the casing (21).

4. The cooling and lubricating electronic oil pump for a new energy automobile according to claim 1, wherein: the shell (21) is provided with a screw (22), and the screw (22) is used for connecting the shell (21) and the control module shell (32).

5. The cooling and lubricating electronic oil pump for a new energy automobile according to claim 1, wherein: the rear end cover (36) is provided with a rear end cover screw (37), and the rear end cover screw (37) is used for connecting the rear end cover (36) and the control module shell (32).

6. The cooling and lubricating electronic oil pump for a new energy automobile according to claim 1, wherein: the novel motor rotor is characterized in that rear bearings (25) and front bearings (23) are respectively arranged at shaft ends of two sides of the rotor assembly (24), a bearing bushing (30) is arranged on the control module shell (32), a shaft end magnetic ring (31) is arranged in the bearing bushing (30), and the bearing bushing (30) is matched with the rear bearings (25).