CN217789467U

CN217789467U - Oil-cooled motor shell integrated with heat exchanger and motor

Info

Publication number: CN217789467U
Application number: CN202222717224.7U
Authority: CN
Inventors: 贾富淳; 陈静; 李良梓; 吕鹏; 周小筠
Original assignee: Lishui Fangde Zhiqu Applied Technology Research Institute Co ltd
Current assignee: Lishui Fangde Zhiqu Applied Technology Research Institute Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2022-11-11
Anticipated expiration: 2032-10-17

Abstract

The utility model relates to an integrated heat exchanger's oil-cooling motor casing and motor is provided with the water course along the circumference spiral in the lateral wall of casing, still is equipped with the water course intake and the water course export of connecting the heat management water pump on the casing lateral wall, still wears to be equipped with one end in the water course and is used for connecting the pivot, and the other end is used for connecting the inside oil pipe of casing. The utility model also discloses a motor, including casing, front shroud, back shroud, stator, pivot and rotor core, front shroud, back shroud are fixed respectively at the both ends of casing, and rotor core sets up in the pivot, and the both ends of pivot rotate the setting through the bearing respectively on front shroud, back shroud, and the casing is the oil-cooled motor casing of above-mentioned structure. The utility model discloses the space of make full use of casing has set up the water course in the casing to wear to establish in the water course with oil pipe, make this water course not only can cool off the inboard stator of casing, can cool off the oil pipe of soaking in the water course again, improved holistic cooling effect.

Description

Oil-cooled motor shell integrated with heat exchanger and motor

Technical Field

The utility model relates to a motor technical field for the electric automobile, more specifically say, relate to an integrated heat exchanger's oil-cooled motor casing and motor.

Background

The driving motor is used as the heart of the electric automobile and must meet the technical requirements of high power, small volume, high reliability and the like. At present, electric automobile driving motors used in various countries in the world are not limited to direct current motors and alternating current permanent magnet synchronous motors. Various losses generated when the motor operates are converted into heat, so that all parts of the motor generate heat, and the temperature is increased. The limit of its temperature rise directly affects the service life of the motor.

Although many technical schemes for heat dissipation are designed and manufactured purposefully, for example, heat dissipation ribs similar to heat dissipation fins of a heat sink are machined or arranged on a shell, a fan is added, a base water-cooling cavity is arranged, and the like, the performances of the heat dissipation ribs are not ideal, so that the adverse results of increased heat load of a motor and weakened driving force are caused, and the whole performance of the electric automobile is directly influenced. Therefore, in both the ac permanent magnet motor and the reluctance motor, the driving efficiency of the motor is not ideal due to heat dissipation and cooling. The heat dissipation and cooling are important technical problems which not only influence the function of the driving motor, but also directly influence the performance of the electric automobile.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, a first object of the present invention is to provide an oil-cooled motor housing integrated with a heat exchanger, which can not only dissipate heat of the whole motor, but also cool a cooling oil pipeline, thereby improving cooling efficiency; a second object of the present invention is to provide a motor.

In order to realize the purpose of the first utility model, the utility model adopts the following technical scheme:

the side wall of the shell is internally provided with a water channel spirally along the circumference, the side wall of the shell is also provided with a water channel inlet and a water channel outlet which are connected with a heat management water pump, one end of the water channel is used for connecting a rotating shaft, and the other end of the water channel is used for connecting an oil pipe inside the shell.

As a preferable scheme: and the oil pipe is also connected with an oil pump.

As a preferable scheme: the water channel inlet and the water channel outlet are respectively positioned at the upper part and the lower part of the side wall of the shell, the water channel inlet is communicated with the upper port of the water channel, and the water channel outlet is communicated with the lower port of the water channel.

In order to realize the purpose of the second utility model, the utility model adopts the following technical scheme:

the utility model provides a motor, includes casing, front shroud, back shroud, stator, pivot and rotor core, the stator sets up in the casing, front shroud, back shroud fix respectively at the both ends of casing, rotor core sets up in the pivot, and the both ends of pivot rotate through the bearing respectively and set up on front shroud, back shroud, the casing is above-mentioned arbitrary one oil-cooled motor casing.

As a preferable scheme: the rotating shaft is further provided with an axial through hole penetrating through the rotating shaft, and one end of the oil pipe penetrates through the front cover plate and is communicated with one end of the axial through hole.

As a preferable scheme: the other end of the oil pipe penetrates through the rear cover plate, and the joint of the oil pipe and the rear cover plate is eccentrically arranged.

As a preferable scheme: the middle part of the rotating shaft is also provided with a plurality of radial through holes which are communicated with the axial through hole.

As a preferable scheme: still be equipped with the rotor through-hole of multichannel by rotor core center to both ends and outside extension on the rotor core, the rotor through-hole communicates with corresponding radial through-hole.

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

the utility model discloses the space of make full use of casing has set up the water course along the circumference spiral in the casing to wear to establish oil pipe in the water course, make this water course not only can cool off the inboard stator of casing, can cool off the oil pipe of soaking in the water course again, indirectly accelerated the cooling of the coolant oil in the oil pipe, thereby make cooling down such as the inside rotor of motor faster, improved holistic cooling effect.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic view of a motor sectional structure of the present invention;

fig. 2 is a schematic sectional view of the motor at the upper water inlet of the present invention;

fig. 3 is a schematic view (an angle) of the overall structure of the present invention;

fig. 4 is a schematic view of the overall structure of the present invention (another angle).

The reference signs are: 1. a housing; 11. a water channel; 2. a stator; 3. a rotating shaft; 31. an axial through bore; 32. a radial through hole; 4. a rotor core; 41. a rotor through hole; 5. a front cover plate; 6. a rear cover plate; 7. an oil pipe; 8. an oil pump.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, elements, and/or combinations thereof, unless the context clearly indicates otherwise.

Furthermore, in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", 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 the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The invention will be further explained with reference to the following embodiments and drawings:

a motor as shown in fig. 1 to 4, including casing 1, front shroud 5, back shroud 6, stator 2, pivot 3 and rotor core 4, stator 2 sets up in casing 1, front shroud 5, back shroud 6 are fixed respectively at the both ends of casing 1, rotor core 4 sets up in pivot 3, and the both ends of pivot 3 rotate through the bearing respectively and set up on front shroud 5, back shroud 6, there is water course 11 along circumference spiral in the lateral wall of casing 1, still be equipped with the water course import and the water course export of connecting the thermal management water pump on the lateral wall of casing 1, still wear to be equipped with one end in the water course 11 and be used for connecting the pivot, the other end is used for connecting the inside oil pipe 7 of casing.

The oil pipe 7 is spirally wound in the water channel 11 along the water channel, and two ends of the oil pipe respectively extend out of the water channel inlet and the water channel outlet, the water channel inlet and the water channel outlet are respectively positioned at the upper part and the lower part of the side wall of the shell, the water channel inlet is communicated with the upper port of the water channel 11, and the water channel outlet is communicated with the lower port of the water channel 11.

The rotating shaft 3 is further provided with an axial through hole 31 penetrating through the rotating shaft 3, and one end of the oil pipe 7 penetrates through the front cover plate 5 after penetrating out from the water channel inlet and is communicated with one end of the axial through hole 31. The middle part of the rotating shaft 3 is also provided with a plurality of radial through holes 32, and the plurality of radial through holes 32 are communicated with the axial through hole 31. Rotor core 4 is last still to be equipped with multichannel rotor through-hole 41 that extends to both ends and the outside by rotor core 4 center, rotor through-hole 41 and corresponding radial through-hole 32 intercommunication. Through the axial through hole 31, the radial through hole 32 and the rotor through hole 41, cooling oil can flow through the rotating shaft and each part of the rotor core, the rotor can be sufficiently cooled, and the radial through hole and the rotor through hole are uniformly and symmetrically arranged, so that the dynamic balance of the rotor is not influenced.

The other end of the oil pipe 7 penetrates through the rear cover plate 6 after penetrating out of the water channel outlet, the joint of the oil pipe 7 and the rear cover plate 6 is eccentrically arranged, and the oil pipe 7 is further connected with an oil pump 8. The structure enables water flow to flow from top to bottom along the water channel, and the cooling oil flows from bottom to top under the action of the oil pump, and the opposite arrangement can enable the water flow to take away heat on the oil pipe more quickly, so that the cooling efficiency is improved; of course, in other embodiments, the oil pipes 7 and the water channels 11 may be arranged in the same direction.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, and that any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. An integrated heat exchanger's oil-cooled motor casing characterized by: a water channel (11) is spirally arranged in the side wall of the shell (1) along the circumference, a water channel inlet and a water channel outlet which are connected with the thermal management water pump are further arranged on the side wall of the shell (1), one end of the water channel (11) is used for connecting the rotating shaft, and the other end of the water channel is used for connecting an oil pipe (7) in the shell (1).

2. The heat exchanger integrated oil-cooled motor housing of claim 1, wherein: the oil pipe (7) is also connected with an oil pump (8).

3. The heat exchanger integrated oil-cooled motor housing of claim 1, wherein: the water channel inlet and the water channel outlet are respectively positioned at the upper part and the lower part of the side wall of the shell (1), the water channel inlet is communicated with the upper port of the water channel (11), and the water channel outlet is communicated with the lower port of the water channel (11).

4. The utility model provides a motor, includes casing (1), front shroud (5), back shroud (6), stator (2), pivot (3) and rotor core (4), stator (2) set up in casing (1), the both ends at casing (1) are fixed respectively in front shroud (5), back shroud (6), rotor core (4) set up in pivot (3), and the both ends of pivot (3) rotate through the bearing respectively and set up on front shroud (5), back shroud (6), its characterized in that: the housing (1) is an oil-cooled motor housing according to any one of claims 1 to 3.

5. An electrical machine according to claim 4, wherein: an axial through hole (31) penetrating through the rotating shaft (3) is further formed in the rotating shaft (3), and one end of the oil pipe (7) penetrates through the front cover plate (5) and is communicated with one end of the axial through hole (31).

6. An electric machine as claimed in claim 5, characterized in that: the other end of the oil pipe (7) penetrates through the rear cover plate (6), and the joint of the oil pipe (7) and the rear cover plate (6) is eccentrically arranged.

7. An electric machine as claimed in claim 5, characterized in that: the middle part of the rotating shaft (3) is also provided with a plurality of radial through holes (32), and the plurality of radial through holes (32) are communicated with the axial through hole (31).

8. An electrical machine according to claim 7, wherein: still be equipped with multichannel on rotor core (4) and extend to both ends and the outside rotor through-hole (41) by rotor core (4) center, rotor through-hole (41) and corresponding radial through-hole (32) intercommunication.