CN216122051U

CN216122051U - Junction box integrated motor with rear support

Info

Publication number: CN216122051U
Application number: CN202121826430.0U
Authority: CN
Inventors: 曾强; 姜枭; 林志强; 毛正松; 吴苾曜; 陈涛; 欧阳石坤; 吴天华; 司政勇
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery 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 junction box integrated and a rear support, wherein the junction box and a motor shell are integrated into a whole, a support seat is arranged on the outer wall of the motor shell, a balance block is arranged on a motor rotor support, a support shaft is arranged on a rear end cover of the motor, and the motor rotor support is connected with the support shaft through a rear bearing. The utility model reduces the installation steps of the junction box, reduces the stress of each suspension and has higher rotational inertia; the sucking of the rotor and the stator caused by the overweight of the rotor is prevented.

Description

Junction box integrated motor with rear support

Technical Field

The utility model relates to the technical field of vehicles, in particular to a junction box integrated motor with a rear support.

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. For example, chinese patent CN108995542A discloses a range extender for an electric vehicle with an integrated motor. This motor integrated form is range extender for electric automobile includes: 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, 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 connection plate and is directly connected to the engine output shaft, the resolver comprising: a resolver stator and a resolver rotor.

The structure still has some defects, the junction box of the generator is separated from the shell, the installation steps of the junction box are complex, and the junction box is easy to interfere with external parts; the rotational inertia of the motor rotor bracket is poor, and the motor runs unstably; and the rotor and the stator are easy to be attracted due to the overweight of the rotor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a junction box integrated motor with a rear support, which comprises a motor rear cover plate, a motor shell, a motor stator core, a motor rotor assembly, a balance block, a rear bearing and a junction box, wherein the motor stator core and the motor rotor assembly are both arranged in the motor shell. The motor rear cover plate is used for packaging the rear end of a motor, the junction box and the motor shell are integrated into a whole, a supporting seat is arranged on the outer wall of the motor shell, a balance block is arranged on a motor rotor assembly, a supporting shaft is arranged on a motor rear end cover, and the motor rotor assembly is connected with the supporting shaft through the rear bearing.

According to the utility model, the motor shell structure integrating the junction box and the motor shell is adopted, and the junction box is arranged in the junction box, so that the installation steps of the junction box are reduced, and the length of the junction box part of the motor is reduced; meanwhile, the motor shell is provided with the mounting seat, and is a supporting leg mounting plane, the motor can be fixed through the mounting supporting legs, the integral cantilever part of the range extender is reduced, and the stress of each suspension is reduced. The balance block is added in the motor rotor component, and compared with a motor without the balance block, the motor rotor component has higher rotational inertia; the motor is internally provided with a double-support structure, a back bearing is fixed by a back shaft designed on a motor back end cover, the outer ring of the back bearing is contacted with the motor rotor assembly and rotates along with the motor rotor assembly, an air gap between the motor rotor assembly and a motor stator iron core is ensured, and the attraction of a rotor and a stator caused by the overweight of the rotor is prevented.

Preferably, the terminal box is provided inside the motor housing. The structure is more compact, and the possibility of interference between the wire holder and external parts during arrangement is reduced.

Preferably, the support base is configured as a leg mounting plane. Simple structure, it is fixed to be convenient for install.

Preferably, the balance block and the motor rotor assembly are both constructed in an annular structure, the balance block is mounted on the inner wall of the motor rotor assembly, and the outer ring of the rear bearing is mounted on the inner wall of the balance block. Simple structure, convenient installation and processing.

Drawings

Fig. 1 is a structural sectional view of a junction box integrated motor with a rear support according to the present invention.

Fig. 2 is a schematic view of the mounting structure of the support shaft according to the present invention.

Fig. 3 is a schematic structural view of the support seat of the present invention.

In the figure: 1. the motor comprises a motor rear cover plate, a motor shell 2, a motor stator core 3, a motor rotor component 4, a balance block 5, a rear bearing 6, a junction box 7, a supporting seat 8 and a supporting shaft 9.

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.

Example 1:

as shown in fig. 1 and 2, a junction box integrated motor with a rear support comprises a motor rear cover plate 1, a motor housing 2, a motor stator core 3, a motor rotor assembly 4, a balance block 5, a rear bearing 6 and a junction box 7, wherein the motor stator core 3 and the motor rotor assembly 4 are installed inside the motor housing 2, the junction box 7 and the motor housing 2 are integrated into a whole, a support seat 8 is arranged on the outer wall of the motor housing 2, the balance block 5 is arranged on the motor rotor assembly 4, a support shaft 9 is arranged on a motor rear end cover, and the motor rotor assembly 4 is connected with the support shaft 9 through the rear bearing 6.

The working principle of the utility model is as follows: in this embodiment, the motor is a generator, and the power transmission path: the crankshaft of the engine is connected with the motor rotor assembly 4 to rotate, the generator generates electricity, the electric energy is output to the generator controller through the 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 and 2, a junction box integrated motor with a rear support comprises a motor rear cover plate 1, a motor housing 2, a motor stator core 3, a motor rotor assembly 4, a balance weight 5, a rear bearing 6 and a junction box 7, wherein the motor stator core 3 and the motor rotor assembly 4 are both installed inside the motor housing 2. The motor rear cover plate 1 is used for packaging the rear end of a motor, the junction box 7 and the motor shell 2 are integrated into a whole, a supporting seat 8 is arranged on the outer wall of the motor shell 2, a balance block 5 is arranged on a motor rotor assembly 4, a supporting shaft 9 is arranged on a motor rear end cover, and the motor rotor assembly 4 is connected with the supporting shaft 9 through the rear bearing 6.

As shown in fig. 1, in the present embodiment, the terminal box 7 is provided inside the motor housing 2. The structure is more compact, and the possibility of interference between the wire holder and external parts during arrangement is reduced.

As shown in fig. 3, in the present embodiment, the support base 8 is configured as a leg mounting plane. Simple structure, it is fixed to be convenient for install.

As shown in fig. 2, in the present embodiment, the balance weight 5 and the motor rotor assembly 4 are both configured as an annular structure, the balance weight 5 is mounted on the inner wall of the motor rotor assembly 4, and the outer ring of the rear bearing 6 is mounted on the inner wall of the balance weight 5. Simple structure, convenient installation and processing.

Claims

1. The utility model provides a motor that support behind terminal box is integrated and takes, includes motor back shroud (1), motor casing (2), motor stator core (3), motor rotor subassembly (4), balancing piece (5), rear bearing (6) and terminal box (7), motor stator core (3) with motor rotor subassembly (4) are all installed inside motor casing (2), its characterized in that: the motor comprises a motor shell (2), a junction box (7), a support seat (8), a balance block (5), a support shaft (9) and a motor rotor assembly (4), wherein the junction box (7) and the motor shell (2) are integrated into a whole, the outer wall of the motor shell (2) is provided with the support seat (8), the motor rotor assembly (4) is provided with the balance block (5), the rear end cover of the motor is provided with the support shaft (9), and the motor rotor assembly (4) is connected with the support shaft (9) through the rear bearing (6).

2. The junction box integrated motor with rear support of claim 1, wherein: the junction box (7) is arranged inside the motor shell (2).

3. A junction box integrated and rear support bearing electric machine as claimed in claim 1 or 2, characterized in that: the support base (8) is designed as a foot mounting plane.

4. A junction box integrated and rear support bearing electric machine as claimed in claim 1 or 2, characterized in that: the balance block (5) and the motor rotor assembly (4) are both constructed into an annular structure, the balance block (5) is installed on the inner wall of the motor rotor assembly (4), and the outer ring of the rear bearing (6) is installed on the inner wall of the balance block (5).