CN216122002U

CN216122002U - Motor rear end cover area supports and revolves rearmounted motor of change

Info

Publication number: CN216122002U
Application number: CN202121826416.0U
Authority: CN
Inventors: 陈涛; 周泽建; 欧阳石坤; 吴天华; 司政勇; 曾强; 林志强; 毛正松; 吴苾曜
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Yuchaixinlan New Energy Power Technology Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-03-22
Anticipated expiration: 2031-08-06

Abstract

The utility model provides a motor with a rear end cover with a support and a rear rotary transformer, wherein the front end of a connecting shaft is connected with the rear end of a rotor assembly, the rear end of the connecting shaft is sequentially sleeved with an inner hole of the rear end cover and a rotor of the rotary transformer, the center of a pressing plate is connected with the cross section of the tail end of the connecting shaft, the periphery of the pressing plate is abutted against the rotor of the rotary transformer, and a stator of the rotary transformer is arranged on the rear end cover; the rear end cover outside sets up the connector, connector and resolver electric connection, and motor casing is inside to be provided with an annular water course. The rotary transformer has good heat dissipation and cooling performance, the rotary transformer is positioned at the rear end of the motor, the rotary transformer is convenient to zero, and meanwhile, the rotary transformer is easy to install and disassemble, and the optional transformer connector is installed on the rear end cover of the motor and is separated from the temperature sensor connector, so that the interference is avoided.

Description

Motor rear end cover area supports and revolves rearmounted motor of change

Technical Field

The utility model belongs to the technical field of new energy automobiles, and particularly relates to a motor with a rear end cover with a support and a rear rotary transformer.

Background

The extended range electric vehicle is characterized in that the whole vehicle can achieve all power performances in a pure electric mode, and when the vehicle-mounted rechargeable battery cannot meet the driving range requirement, the vehicle-mounted auxiliary power generation device is turned on to provide electric energy for the power system so as to prolong the driving range. The range extending type electric automobile has a range extender which generally comprises an engine and a generator, charges a power battery of the automobile and can directly drive a motor to run.

The range extender mainly comprises an engine and a generator, the bottleneck problem restricting the wide application of the range extender is the lack of the generator with high efficiency, high reliability and stable output voltage, the connection mode of the generator determines the conversion efficiency of energy, the structure and the weight of the range extender are influenced, and the structural arrangement and the performance of the whole vehicle are further influenced.

The range extender can effectively solve the problem of mileage anxiety of the pure electric vehicle and becomes the development trend of new energy vehicles. The range extender is generally composed of an engine + a generator. The range extender for the electric vehicle with the integrated motor disclosed in chinese patent CN108995542A comprises: an engine body; an engine output shaft; a connecting plate; and a generator comprising: the motor comprises a rotary transformer, a motor rotor assembly, a motor stator assembly, a motor shell and a motor rear cover plate, wherein the motor shell is fixed on a connecting plate, and the motor stator assembly is put into the motor shell from the front end of the motor shell and is sleeved on the motor shell in a hot manner; the motor rotor assembly is coaxially disposed within the motor stator assembly and has a motor rotor support that extends into the connecting plate and is directly connected to the engine output shaft.

The structure still has some defects, and the motor shell is not provided with a better cooling structure and is easy to overheat; the rear end cover of the motor is not provided with a supporting structure, so that the motor is unstable in operation and low in reliability; the rotary transformer is installed at the front end, is difficult to zero and is inconvenient to disassemble and assemble.

SUMMERY OF THE UTILITY MODEL

The utility model provides a motor with a support at the rear end cover of the motor and a rear rotary transformer, which has good heat dissipation and cooling performance, the rotary transformer is positioned at the rear end of the motor, the rotary transformer is convenient to zero and is easy to install and disassemble, and an optional transformer connector is installed on the rear end cover of the motor and is separated from a temperature sensor connector, so that interference is avoided.

The fore-aft direction of the present invention is defined as the engine block being forward and the rear end cover being rearward.

A motor with a rear end cover with a support and a rear rotary transformer comprises an engine body, a crankshaft, a motor shell, a stator component, a rotor component, a connecting shaft, a rear end cover, a connector, a rolling bearing, a rotary transformer, a pressing plate, a rear cover plate and a bearing retainer ring, wherein the front end of the connecting shaft is connected with the rear end of the rotor component, the rear end of the connecting shaft is sequentially sleeved with an inner hole of the rear end cover and a rotor of the rotary transformer, the center of the pressing plate is connected with the cross section of the tail end of the connecting shaft, the periphery of the pressing plate is abutted against the rotor of the rotary transformer, and the stator of the rotary transformer is arranged on the rear end cover; the motor back shroud has the bearing to support, and the reliability is higher.

A boss is arranged on the outer circumference of the connecting shaft, and the rolling bearing is arranged between the boss and the protruding part of the front end of the rear end cover; the rolling bearing is installed on the rear end cover of the motor, the outer ring rotates along with the motor rotor support, and the inner ring is fixed, so that the structure is simple and the installation is convenient.

The rear end cover outside sets up the connector, the connector with rotary transformer electric connection, optional transformer connector install on the motor rear end cover, separately with the temperature sensor connector, avoid interfering.

An annular water channel is arranged inside the motor shell. The motor stator is cooled, and the cooling effect is good.

Preferably, the cooling water inlet and the cooling water outlet of the water channel are both located at the bottom of the motor shell. The cooling liquid is convenient to introduce and discharge, and the water inlet risk of the motor is reduced.

Preferably, a shaft shoulder is arranged at the front end of the rotary transformer on the connecting shaft, and the shaft shoulder is abutted against the front end of the rotor of the rotary transformer. The shaft shoulder and the rotary transformer rotor pressing plate are used for positioning and fixing stably.

Drawings

Fig. 1 is a structural sectional view of a motor with a rear end cover supported and a rear end cover rotated according to the utility model.

Fig. 2 is an enlarged view of the mounting structure of the resolver according to the present invention.

Fig. 3 is a block diagram of a waterway in accordance with the present invention.

In the figure: 1-an engine body, 2-a crankshaft, 3-a motor shell, 301-a water channel, 302-a cooling water inlet, 303-a cooling water outlet, 4-a stator component, 5-a rotor component, 6-a connecting shaft, 601-a boss, 602-a shaft shoulder, 7-a rear end cover, 8-a connector, 9-a rolling bearing, 10-a rotary transformer, 11-a pressing plate, 12-a rear cover plate and 13-a bearing retainer ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and detailed description, wherein the exemplary embodiments and descriptions are provided for illustration of the utility model and not for limitation of the utility model.

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "front", "rear", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that a device or structure referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Example 1:

as shown in fig. 1 to 3, a motor with a rear end cover supporting and a rear end cover rotating comprises an engine body 1, a crankshaft 2, a motor housing 3, a stator assembly 4, a rotor assembly 5, a connecting shaft 6, a rear end cover 7, a connector 8, a rolling bearing 9, a rotary transformer 10, a pressing plate 11, a rear cover plate 12 and a bearing retainer 13, wherein the front end of the connecting shaft 6 is connected with the rear end of the rotor assembly 5, the rear end of the connecting shaft 6 is sequentially sleeved with an inner hole of the rear end cover 7 and a rotor of the rotary transformer 10, the center of the pressing plate 11 is connected with the cross section of the tail end of the connecting shaft 6, the periphery of the pressing plate 11 is abutted against the rotor of the rotary transformer 10, and a stator of the rotary transformer 10 is arranged on the rear end cover 7; a boss 601 is arranged on the outer circumference of the connecting shaft 6, and the rolling bearing 9 is arranged between the boss 601 and the front end protruding part of the rear end cover 7; the connector 8 is arranged on the outer side of the rear end cover 7, the connector 8 is electrically connected with the rotary transformer 10, and an annular water channel 301 is arranged inside the motor shell 3.

Power generation transmission path of the embodiment: the crankshaft 2 outputs power, the generator generates power, electric energy is output to the generator controller through a cable, and finally the electric energy is output through the generator controller to be used by the whole vehicle.

Example 2:

as shown in fig. 1, a motor with a rear end cover supporting and rear-mounted rotary transformer comprises an engine body 1, a crankshaft 2, a motor housing 3, a stator assembly 4, a rotor assembly 5, a connecting shaft 6, a rear end cover 7, a connector 8, a rolling bearing 9, a rotary transformer 10, a pressing plate 11, a rear cover plate 12 and a bearing retainer ring 13, wherein the front end of the connecting shaft 6 is connected with the rear end of the rotor assembly 5, the rear end of the connecting shaft 6 is sequentially sleeved with an inner hole of the rear end cover 7 and a rotor of the rotary transformer 10, the center of the pressing plate 11 is connected with the cross section of the tail end of the connecting shaft 6, the periphery of the pressing plate 11 is abutted against the rotor of the rotary transformer 10, and a stator of the rotary transformer 10 is arranged on the rear end cover 7; the motor rear cover plate 12 is supported by a bearing, so that the reliability is higher.

As shown in fig. 2, in this embodiment, a boss 601 is provided on an outer circumference of the connecting shaft 6, the rolling bearing 9 is installed between the boss 601 and a protruding portion of the rear end cap 7 toward the front end, a retainer ring 13 is provided at a front end position of the rolling bearing 9, and the retainer ring 13 is installed on the connecting shaft 6; the rolling bearing 9 is arranged on the rear end cover 7 of the motor, the outer ring rotates along with the motor rotor support, and the inner ring is fixed, so that the structure is simple and the installation is convenient.

As shown in fig. 1, in this embodiment, the connector 8 is disposed outside the rear end cap 7, the connector 8 is electrically connected to the rotary transformer 10, and the optional transformer connector 8 is mounted on the motor rear end cap 7 and separated from the temperature sensor connector 8, so as to avoid interference.

As shown in fig. 3, in the present embodiment, an annular water channel 301 is provided inside the motor housing 3. The motor stator is cooled, and the cooling effect is good.

As shown in fig. 3, in this embodiment, the cooling water inlet 302 and the cooling water outlet 303 of the water channel 301 are both located at the bottom of the motor housing 3. The cooling liquid is convenient to introduce and discharge, and the water inlet risk of the motor is reduced.

As shown in fig. 2, in the present embodiment, a shoulder 602 is disposed at the front end of the rotary transformer 10 on the connecting shaft 6, and the shoulder 602 interferes with the front end of the rotor of the rotary transformer 10. The shaft shoulder 602 and the rotor pressing plate 11 of the rotary transformer 10 are used for positioning and fixing.

Claims

1. The utility model provides a motor rear end cap area supports and revolves rearmounted motor of change, includes engine body (1), bent axle (2), motor casing (3), stator module (4), rotor subassembly (5), connecting axle (6), rear end cap (7), connector (8), antifriction bearing (9), resolver (10), clamp plate (11), back shroud (12) and bearing retainer ring (13), its characterized in that: the front end of the connecting shaft (6) is connected with the rear end of the rotor assembly (5), the rear end of the connecting shaft (6) is sequentially sleeved with an inner hole of a rear end cover (7) and a rotor of a rotary transformer (10), the center of the pressing plate (11) is connected with the cross section of the tail end of the connecting shaft (6), the periphery of the pressing plate (11) abuts against the rotor of the rotary transformer (10), and a stator of the rotary transformer (10) is arranged on the rear end cover (7); a boss (601) is arranged on the outer circumference of the connecting shaft (6), and the rolling bearing (9) is arranged between the boss (601) and the front end protruding part of the rear end cover (7); the rear end cover (7) outside sets up connector (8), connector (8) with rotary transformer (10) electric connection, motor casing (3) inside is provided with an annular water course (301).

2. A motor having a motor rear end cover with support and a rotating rear position according to claim 1, wherein: and a cooling water inlet (302) and a cooling water outlet (303) of the water channel (301) are both positioned at the bottom of the motor shell (3).

3. A motor with a motor rear end cover supported and rotationally shifted to be rear-mounted according to claim 1 or 2, wherein: and a shaft shoulder (602) is arranged at the front end of the rotary transformer (10) on the connecting shaft (6), and the shaft shoulder (602) is abutted against the front end of the rotor of the rotary transformer (10).