CN216121975U

CN216121975U - Range extender structure with rotor provided with balance block

Info

Publication number: CN216121975U
Application number: CN202121826445.7U
Authority: CN
Inventors: 吴苾曜; 蓝伟科; 陈涛; 欧阳石坤; 吴天华; 司政勇; 曾强; 林志强; 毛正松
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 discloses a range extender structure with a rotor provided with a balance block, which comprises a motor shell, a rotor bracket, a rotor assembly, a stator assembly, the balance block and an end cover; one end of the motor shell is fixedly connected with the engine body, and the other end of the motor shell is fixedly connected with the end cover; the end face of one end of the rotor support is coaxially and fixedly connected with a crankshaft of an engine in the motor shell, the other end of the rotor support is coaxially and fixedly connected with a balance block, and the rotor assembly is fixedly arranged on the outer ring of the side wall of the rotor support; the stator component is fixedly arranged on the inner side wall of the motor shell opposite to the rotor component; the inside water course that still is equipped with of lateral wall of motor casing, the lateral wall of motor casing has set firmly the terminal box, is equipped with the wiring board between the cavity of terminal box and the cavity of motor casing, and wiring board and motor casing fixed connection. The range extender structure with the rotor provided with the balance block, disclosed by the utility model, can eliminate the unbalance amount, improve the reliability, prevent parts from falling into a motor cavity when the motor is subjected to daily disconnection and connection of three-phase lines, and has good heat dissipation.

Description

Range extender structure with rotor provided with balance block

Technical Field

The utility model relates to a motor structure, in particular to a range extender structure with a rotor provided with a balance block.

Background

At present, in order to increase the endurance mileage of a pure electric vehicle, an extended range electric vehicle becomes a new energy vehicle development trend, and the extended range electric vehicle can use an engine to supply electric energy under the condition of insufficient battery power. The conventional range extender is connected with a motor rotor through an engine crankshaft, and converts energy generated by an engine into electric energy to charge a battery, so that the endurance mileage of the electric automobile is improved.

In the prior art, for example, chinese patent CN108995542A discloses a range extender for an electric vehicle with an integrated motor, which includes: an engine body; an engine output shaft; a connecting plate; a generator; the generator 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 the 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 mode; 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. Although the compactness and the stability of overall structure are improved in the prior art, the wire rod of the motor is not fixed and the wiring cavity is communicated with the motor cavity, and parts easily fall into the motor cavity when the three-phase line is disconnected, so that the motor is burnt out.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a range extender structure with a rotor provided with a balance block, aiming at solving the problems that the existing motor structure has the disadvantages that when a three-phase line is disconnected, parts are easy to fall into a motor cavity, so that a motor is burnt out, the motor rotor has unbalance, the system reliability is poor, the cooling effect is poor and the like.

The utility model adopts the following technical scheme to realize the purpose:

a range extender structure with a rotor provided with a balance block is used for being installed with an engine in a matching way and comprises a motor shell, a rotor bracket, a rotor assembly, a stator assembly, the balance block and an end cover; one end of the motor shell is fixedly connected with the engine body, and the other end of the motor shell is fixedly connected with the end cover; the end face of one end of the rotor support is coaxially and fixedly connected with a crankshaft of an engine in the motor shell, the other end of the rotor support is coaxially and fixedly connected with a balance block, and the rotor assembly is fixedly arranged on the outer ring of the side wall of the rotor support; the stator component is fixedly arranged on the inner side wall of the motor shell opposite to the rotor component; a water channel is further arranged inside the side wall of the motor shell, and the water channel is in one of a multi-ring type, a single-ring type or a spiral type; the outer side wall of the motor shell is fixedly provided with a junction box, a wiring board is arranged between the cavity of the junction box and the cavity of the motor shell, and the wiring board is fixedly connected with the motor shell.

According to the technical scheme, the water channel structure is additionally arranged in the side wall of the motor shell, so that heat generated by the motor during working can be taken away, and the reliability and the efficiency of the motor are ensured; the rotor support is fixedly provided with the balance block, so that the unbalance can be eliminated, and the reliability is improved; the wiring board structure isolates the cavity of the motor shell from the cavity of the wiring box, and parts can be prevented from falling into the motor cavity when the motor is used for daily disconnecting three-phase lines.

The further technical scheme is that the junction box and the motor shell are of an integrally formed structure.

The further technical scheme is that the balance block is of an annular structure.

The utility model has the beneficial effects that:

according to the range extender structure with the rotor provided with the balance block, the water channel structure is additionally arranged in the side wall of the motor shell, so that heat generated by the work of the motor can be taken away, and the reliability and the efficiency of the motor are ensured; the rotor support is fixedly provided with the balance block, so that the unbalance can be eliminated, and the reliability is improved; the wiring board structure isolates the cavity of the motor shell from the cavity of the wiring box, and parts can be prevented from falling into the motor cavity when the motor is used for daily disconnecting three-phase lines.

Drawings

FIG. 1 is a diagram: the utility model discloses a schematic diagram of a range extender structure with a rotor provided with a balance block.

FIG. 2 is a diagram of: the utility model discloses a motor shell structure schematic diagram of a junction box.

FIG. 3 is a diagram of: the utility model relates to a cross section of a motor casing of a wiring board.

FIG. 4 is a diagram of: the utility model discloses a schematic diagram of a multi-ring water channel.

FIG. 5 is a diagram: the utility model discloses a schematic diagram of a single-ring water channel.

FIG. 6 is a diagram of: the utility model discloses a schematic diagram of a spiral water channel.

In the figure:

1. an engine; 2. a crankshaft; 3. a first fixing bolt; 4. a motor housing; 41. a polycyclic water channel; 42. a single-ring type water channel; 43. a spiral water channel; 5. a rotor support; 6. a rotor assembly; 7. a stator assembly; 8. a counterbalance; 9. a second fixing bolt; 10. an end cap; 11. a junction box; 12. a patch panel.

Detailed Description

The utility model is described in detail below with reference to fig. 1 to 6 and the embodiments, and features of the following examples and examples may be combined with each other without conflict.

As shown in fig. 1 to 6, the present embodiment provides a range extender structure with a rotor having a balance block, which is used for being installed in cooperation with an engine 1, and includes a motor casing 4, a rotor bracket 5, a rotor assembly 6, a stator assembly 7, a balance block 8, and an end cover 10; wherein, one end of the motor shell 4 is fixedly connected with the engine body of the engine 1, and the other end is fixedly connected with the end cover 10; the end face of one end of the rotor bracket 5 is coaxially and fixedly connected with a crankshaft 2 of the engine 1 in the motor shell 4, the other end of the rotor bracket 5 is coaxially and fixedly connected with a balance block 8, and the rotor assembly 6 is fixedly arranged on the outer ring of the side wall of the rotor bracket 5; the stator assembly 7 is fixedly arranged on the inner side wall of the motor shell 4 opposite to the rotor assembly 6; a water channel is further arranged inside the side wall of the motor shell 4, and the water channel is in one of a multi-ring type, a single-ring type or a spiral type; the outer side wall of the motor casing 4 is further fixedly provided with a junction box 11, a wiring board 12 is arranged between the cavity of the junction box 11 and the cavity of the motor casing 4, and the wiring board 12 is fixedly connected with the motor casing 4.

Specifically, motor casing 4 is both ends opening and hollow cylindrical structure, and rotor support 5 is one end open-ended hollow structure, and the directional end cover 10 of its opening, balancing piece 8, bent axle 2 are coaxial laying with rotor support 5, and rotor subassembly 6 is the magnet steel, and stator module 7 is the wire winding subassembly, and this embodiment's concrete installation is: a stator component 7 is fixedly arranged on the inner side wall of the motor shell 4, a rotor component 6 is fixedly arranged on the outer ring of the rotor bracket 5, the end part of the rotor bracket 5 is coaxially and fixedly provided with a balance block 8 through a second fixing bolt 9, the balance block 8 in the embodiment is a ring-shaped structure, the outer diameter size is slightly smaller than the inner diameter size of the rotor bracket 5, the end part is provided with a lug boss matched with the end part of the rotor bracket 5, the motor is coaxially and fixedly installed through fixing bolts, the specific installation mode can also adopt modes such as tight fit, gluing, bolts or welding, one end of the motor shell 4 is fixedly connected with the engine body of the engine 1 through the first fixing bolt 3, the rotor support 5 is coaxially and fixedly connected with the engine crankshaft 2 in the motor shell 4 through bolts, the rotor assembly 6 and the stator assembly 7 are positioned at matched positions, and finally the end cover 10 is fixedly connected with the other end of the motor shell 4 through bolts; in the embodiment, the water channel specifically adopts a multi-ring water channel 41, the junction box 11 and the motor shell 4 are manufactured in an integrated forming mode, a wiring board 12 is arranged between a cavity of the junction box 11 and a cavity of the motor shell 4, the wiring board 12 is detachably connected with the motor shell 4 through screws, conductive three-phase wire connection points are respectively arranged on two sides of the wiring board 12, in the wiring process, three-phase wires on two sides of the wiring board 12 are respectively connected with the matched three-phase wire connection points through screws to form a conductive loop, the wiring board 12 of the embodiment isolates the cavity of the motor shell 4 from the cavity of the junction box 11, and when the three-phase wires are daily disconnected and connected with a motor, parts fall into the motor cavity to cause the motor to be burnt out; the power (power generation) transmission path is: the crankshaft 2 of the engine 1 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.

It should be noted that the water channel inside the side wall of the motor casing 4 is integrally formed and is formed by casting with the motor casing 4 at one time, the two ends of the water channel inside the side wall of the motor casing 4 are respectively provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively communicated with the water channel outside the motor casing 4, and the shape of the water channel can also adopt a single-ring water channel 42 or a spiral water channel 43 as shown in fig. 5 and 6.

In the embodiment, the water channel structure is additionally arranged in the side wall of the motor shell 4, so that heat generated by the work of the motor can be taken away, and the reliability and the efficiency of the motor are ensured; the rotor bracket 5 is fixedly provided with a balance block 8, so that the unbalance can be eliminated, and the reliability is improved; the wiring board 12 structure isolates the cavity of the motor shell 4 from the cavity of the wiring box 11, so that the parts can be prevented from falling into the motor cavity when the motor is used for daily disconnecting three-phase lines.

In other embodiments or practical applications, the wiring board 12 may also be installed between the motor casing 4 and the terminal box 11 by welding, integral molding, or the like, the terminal box 11 and the motor casing 4 may also be fixedly connected by screws or welding, the connection between the motor casing 4 and the engine body of the engine 1 may also be replaced by welding, fastening, gluing, or the like, and the balance weight 8 may specifically be a cylindrical, conical, or square structure, or the like.

Claims

1. A range extender structure with a rotor provided with a balance block is used for being matched and installed with an engine (1), and is characterized by comprising a motor shell (4), a rotor bracket (5), a rotor assembly (6), a stator assembly (7), a balance block (8) and an end cover (10); one end of the motor shell (4) is fixedly connected with the engine body of the engine (1), and the other end of the motor shell is fixedly connected with the end cover (10);

the end face of one end of the rotor support (5) is coaxially and fixedly connected with a crankshaft (2) of an engine (1) in the motor shell (4), the other end of the rotor support (5) is coaxially and fixedly connected with a balance block (8), and the rotor assembly (6) is fixedly arranged on the outer ring of the side wall of the rotor support (5);

the stator component (7) is fixedly arranged on the inner side wall of the motor shell (4) opposite to the rotor component (6);

a water channel is further arranged inside the side wall of the motor shell (4), and the water channel is in one of a multi-ring type, a single-ring type or a spiral type;

the outer side wall of the motor casing (4) is further fixedly provided with a junction box (11), a wiring board (12) is arranged between a cavity of the junction box (11) and a cavity of the motor casing (4), and the wiring board (12) is fixedly connected with the motor casing (4).

2. The rotor range extender structure with the balance weight as recited in claim 1, wherein the junction box (11) and the motor casing (4) are of an integral structure.

3. A rotor counterbalanced range extender structure as claimed in claim 1, wherein the counterbalance mass (8) is of annular configuration.