CN215498608U

CN215498608U - Range extender with three-phase line fixing structure

Info

Publication number: CN215498608U
Application number: CN202121826152.9U
Authority: CN
Inventors: 刘兵; 司政勇; 曾强; 林志强; 毛正松; 吴苾曜; 陈涛; 欧阳石坤; 吴天华
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: 2022-01-11
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a range extender with a three-phase line fixing structure, which comprises a motor shell, a rotor bracket, a rotor assembly, a stator assembly, an end cover, a rotary transformer, a bearing and an output assembly, wherein the rotor assembly is arranged on the motor shell; 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; one end of the motor shell, which is connected with the engine body, is provided with a first through hole, and the end cover is provided with a second through hole which penetrates through the end face of the end cover; one end of the rotor bracket is coaxially and fixedly connected with a crankshaft of the engine, the end of the rotor bracket is also in transmission connection with a starting gear ring, and the other end of the rotor bracket is protruded with an output component coaxially and fixedly connected with the rotor bracket; the stator component is fixedly arranged on the side wall of the motor shell opposite to the rotor component; the outer wall of the motor shell is fixedly provided with a junction box, and the outside of the junction box is fixedly connected with a wire fixing clamp through a fixing support. The range extender with the three-phase line fixing structure disclosed by the utility model has high energy utilization rate, space utilization rate and reliability.

Description

Range extender with three-phase line fixing structure

Technical Field

The utility model relates to a motor structure, in particular to a range extender with a three-phase line fixing structure.

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 the whole structure are improved in the prior art, the energy utilization rate and the motor space utilization rate of the structure are low, and the stability of a motor output cable is poor and inconvenient to maintain.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a range extender with a three-phase line fixing structure, aiming at solving the problems of lower energy utilization rate and motor space utilization rate, poorer stability of a motor output cable, inconvenient maintenance and the like in the existing motor structure.

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

a range extender with a three-phase line fixing structure is used for being matched and installed with an engine and comprises a motor shell, a rotor bracket, a rotor assembly, a stator assembly, an end cover, a rotary transformer, a bearing and an output assembly; 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; a first through hole is formed in one end, connected with the engine body, of the motor shell, and a second through hole penetrating through the end face of the end cover is formed in the end cover; one end of the rotor bracket is coaxially and fixedly connected with a crankshaft of an engine, the crankshaft of the engine penetrates through the through hole, the end of the rotor bracket is also in transmission connection with a starting gear ring, the rotor assembly is fixedly arranged on an outer ring of the rotor bracket, and an output assembly coaxially and fixedly connected with the rotor bracket is protruded from the other end of the rotor bracket; the output assembly comprises an output shaft and an output gear, one end of the output shaft is coaxially and fixedly connected with the rotor bracket, and the other end of the output shaft penetrates through a second through hole of the end cover and is coaxially and fixedly connected with the output gear; the outer ring of the output shaft is sequentially fixedly sleeved with a bearing and a rotating end of a rotary transformer; the outer ring of the bearing is matched with the inner ring of the second through hole, and the fixed end of the rotary transformer is fixedly arranged on the inner ring of the second through hole; the stator assembly is fixedly arranged on the side wall of the motor shell opposite to the rotor assembly; the outer wall of the motor shell is fixedly provided with a junction box, and the outside of the junction box is fixedly connected with a wire fixing clamp through a fixing support; the wire fixing clamp comprises a first clamping plate, a second clamping plate and an adjusting screw, wherein the first clamping plate, the second clamping plate and the adjusting screw are vertically distributed, a wire fixing hole for fixing an output wire is formed between the first clamping plate and the second clamping plate, the adjusting screw penetrates through the first clamping plate and is in threaded connection with the second clamping plate, and the aperture of the wire fixing hole is smaller than the outer diameter of the output wire; the fixed bolster includes first bracing piece, second bracing piece and supporting baseplate, first bracing piece and second bracing piece are located the both sides of solidus clamp respectively and with terminal box fixed connection, the both ends of supporting baseplate respectively with first bracing piece and second bracing piece fixed connection, and with the bottom surface fixed connection of second splint.

In the technical scheme, the motor is rigidly and directly connected with the crankshaft of the engine, the structure is simple, the flywheel shell and the motor shell are integrated, the length of the motor is shortened, the rotor bracket is in transmission connection with the starting gear ring, the energy utilization rate is improved, the integrity of the range extender is favorably enhanced, and a sealing scheme is convenient to design and implement; the motor casing is equipped with the terminal box structure outward, and the output line passes through the solidus fastener to be fixed, can satisfy first fixed point turning radius's needs, improves the stability of output line simultaneously, also makes things convenient for the cable to maintain.

The technical scheme is that the side wall of the junction box is provided with a threading hole for penetrating an output line, and the threading hole comprises a contractible hollow screw and a locking nut matched with the outer ring of the hollow screw. This technical scheme can further improvement output line's stability.

The further technical scheme is that the end part of the rotor bracket, which is close to the end cover, is fixedly provided with a compression ring matched with the rotor assembly.

The further technical scheme is that one end of the motor shell is fixedly connected with the engine through a fixing bolt.

The utility model has the beneficial effects that:

according to the range extender with the three-phase line fixing structure, the motor is rigidly and directly connected with the crankshaft of the engine, the structure is simple, the flywheel shell and the motor shell are integrated, the length of the motor is shortened, the rotor bracket is in transmission connection with the starting gear ring, the energy utilization rate is improved, the integrity of the range extender is favorably enhanced, and a sealing scheme is convenient to design and implement; the motor casing is equipped with the terminal box structure outward, and the output line passes through the solidus clamp on the fixed bolster, can satisfy first fixed point turning radius's needs, improves the stability of output line simultaneously, also makes things convenient for the cable to maintain.

Drawings

FIG. 1 is a diagram: the utility model discloses a schematic diagram of a range extender with a three-phase line fixing structure.

FIG. 2 is a diagram of: the utility model discloses a schematic view of a connection structure of a junction box and a wire fixing clamp.

In the figure:

1. an engine; 2. a crankshaft; 3. fixing the bolt; 4. a motor housing; 5. a rotor support; 6. a rotor assembly; 61. pressing a ring; 7. a stator assembly; 8. a junction box; 81. threading holes; 82. a wire fixing clamp; 821. an adjusting screw; 83. an output line; 84. locking the nut; 85. fixing a bracket; 851. a first support bar; 852. a second support bar; 853. a support base plate; 9. an end cap; 10. a rotary transformer; 11. a bearing; 12. an output component; 13. the ring gear is started.

Detailed Description

The utility model is described in detail below with reference to fig. 1 to 2 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 2, the present embodiment provides a range extender with a three-phase line fixing structure, 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, an end cover 9, a rotary transformer 10, a bearing 11, and an output assembly 12; 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 9; a first through hole is formed in one end, connected with the engine body of the engine 1, of the motor shell 4, and a second through hole penetrating through the end face of the end cover 9 is formed in the end cover; one end of the rotor bracket 5 is coaxially and fixedly connected with a crankshaft 2 of the engine 1, the crankshaft 2 of the engine 1 penetrates through the through hole, the end of the rotor bracket 5 is also in transmission connection with a starting gear ring 13, the rotor assembly 6 is fixedly arranged on an outer ring of the rotor bracket 5, and an output assembly 12 coaxially and fixedly connected with the other end of the rotor bracket 5 protrudes out of the other end of the rotor bracket 5; the output assembly 12 comprises an output shaft and an output gear, one end of the output shaft is coaxially and fixedly connected with the rotor bracket 5, and the other end of the output shaft penetrates through a second through hole of the end cover 9 and is coaxially and fixedly connected with the output gear; the outer ring of the output shaft is sequentially fixedly sleeved with a bearing 11 and a rotating end of a rotary transformer 10; the outer ring of the bearing 11 is matched with the inner ring of the second through hole, and the fixed end of the rotary transformer 10 is fixedly arranged on the inner ring of the second through hole; the stator assembly 7 is fixedly arranged on the side wall of the motor shell 4 opposite to the rotor assembly 6; a junction box 8 is fixedly arranged on the outer wall of the motor shell 4, and a wire fixing clamp 82 is fixedly connected to the outer part of the junction box 8 through a fixing support 85; the wire fixing clamp 82 comprises a first clamping plate, a second clamping plate and an adjusting screw 821 which are distributed up and down, a wire fixing hole for fixing the output wire 83 is formed between the first clamping plate and the second clamping plate, the adjusting screw 821 penetrates through the first clamping plate and is in threaded connection with the second clamping plate, and the aperture of the wire fixing hole is smaller than the outer diameter of the output wire 83; the fixing bracket 85 comprises a first supporting rod 851, a second supporting rod 852 and a supporting base plate 853, wherein the first supporting rod 851 and the second supporting rod 852 are respectively positioned at two sides of the wire fixing clip 82 and are fixedly connected with the junction box 8, and two ends of the supporting base plate 853 are respectively fixedly connected with the first supporting rod 851 and the second supporting rod 852 and are fixedly connected with the bottom surface of the second clamping plate;

specifically, rotor subassembly 6 is the magnet steel, and stator module 7 is the wire winding subassembly, and rotor support 5 is one end open-ended hollow structure, and the directional end cover 9 of opening, rotor support 5, second through-hole, output shaft and 2 coaxial laying of bent axle, and this embodiment's concrete installation is: the inner side wall of a motor shell 4 is fixedly provided with a stator component 7 in a close fit mode, an outer ring of a rotor bracket 5 is fixedly provided with a rotor component 6 in a close fit mode, the motor shell 4 is fixedly arranged on a machine body of an engine 1 through a fixing bolt 3, a crankshaft 2 penetrates through a first through hole on the end surface of the motor shell 4 and is coaxially and fixedly connected with the rotor bracket 5 through a bolt, the rotor component 6 and the stator component 7 are positioned at a matched position, the rotor bracket 5 and a starting gear ring 13 are positioned at a meshed position, namely, a flywheel shell is integrated on the outer ring of the end part of the rotor bracket 5, the motor shell 4 and a junction box 8 are integrally formed, the outer wall of the junction box 8 is fixedly connected with the end parts of a first supporting rod 851 and a second supporting rod 852 through bolts, wherein the first supporting rod 851 and the second supporting rod 852 are integrally formed with a supporting base plate 853, and the supporting base plate 853 is fixedly connected with a second clamping plate through a welding mode, a motor output line 83 sequentially penetrates through a threading hole 81 of a pipe junction box 8 and a wire fixing hole of a wire fixing clamp 82, the size of the wire fixing hole is adjusted through an adjusting screw 821 to fix the output line 83, one end of an output shaft and the inner wall of a rotor bracket 5 are coaxially and fixedly installed through bolts, an inner ring of a second through hole of an end cover 9 is sequentially provided with a bearing 11 and a fixed end of a rotary transformer 10 in a tight fit mode, a bearing mounting seat protruding towards the inside of a motor shell 4 can be arranged at the second through hole, an outer ring of the bearing 11 is fixedly connected with an inner ring of the bearing mounting seat, the end cover 9 is fixedly connected with the end part of the motor shell 4, the output shaft penetrates through the second through hole, the outer ring of the output shaft is fixedly connected with the inner ring of the bearing 11, a rotating end of the rotary transformer 10 is sleeved at the matching position of the outer ring of the output shaft and the fixed end of the rotary transformer 10, and finally, an output gear is coaxially fixed and installed at the other end of the output shaft through bolts, in the present embodiment, the end cap 9 extends to a side wall of the terminal box 8 and is fixedly connected to the side wall of the terminal box 8. Force transmission path: the engine crankshaft outputs power, the motor generates power, electric energy is output to the motor controller through the output cable, and finally the electric energy is output to the whole vehicle through the motor controller for use.

In the above connection manner, the fixed connection includes, but is not limited to, replacing by fixing bolts, gluing, welding, snapping, or tight fitting; the threading hole 81 of terminal box 8 can also be replaced through the wiring copper bar in above-mentioned embodiment, is equipped with electrically conductive copper bar inside and outside the lateral wall of terminal box 8 promptly, is connected with the wire respectively in the inside and the outside of terminal box 8, forms the wire circuit of motor output, and the wire that is located the outside of terminal box 8 then runs through to solid fastener rather than fixed coordination.

It is worth explaining that the motor is rigidly and directly connected with the crankshaft 2 of the engine 1, the structure is simple, the flywheel housing and the motor housing 4 are integrated, the length of the motor is shortened, and the rotor support 5 is in transmission connection with the starting gear ring 13, so that the energy utilization rate is improved; the rotor bracket 5 is connected with the output assembly 12 and extends out of the end cover 9, so that the functions of power generation, spline shaft output and simultaneous power generation can be considered, and the spline shaft output function is realized, and the space utilization rate and the energy utilization rate of the motor are improved; the motor casing 4 is equipped with terminal box 8 structure outward, and output line 83 is fixed through solidus clamp 82, can satisfy first fixed point turning radius's needs, improves output line 83's stability simultaneously, also makes things convenient for the cable to maintain.

In a preferred embodiment, the side wall of the junction box 8 is provided with a threading hole for threading the output wire 83, and the threading hole comprises a retractable hollow screw and a locking nut 84 matched with the outer ring of the hollow screw; wherein, collapsible hollow screw is used for running through output line 83, and its concrete structure is that hollow screw's lateral wall is equipped with evenly distributed's breach along its axis direction, and screw-thread fit through lock nut 84 and hollow screw realizes reducing or enlargeing of hollow screw internal diameter to realize the clamp of output line 83 or loosen, the stability of improvement output line 83 that can be further.

In a preferred embodiment, a compression ring 61 matched with the rotor assembly 6 is fixedly arranged at one end of the rotor bracket 5 close to the end cover 9, so that the stability of the rotor assembly 6 can be further ensured.

According to the range extender with the three-phase line fixing structure, the motor is rigidly and directly connected with the crankshaft 2 of the engine 1, the structure is simple, the flywheel housing and the motor housing 4 are integrated, the length of the motor is shortened, and the rotor bracket 5 is in transmission connection with the starting gear ring 13, so that the energy utilization rate is improved; the rotor bracket 5 is connected with the output assembly 12 and extends out of the end cover 9, so that the functions of power generation, spline shaft output and simultaneous power generation can be considered, and the spline shaft output function is realized, and the space utilization rate and the energy utilization rate of the motor are improved; the motor casing 4 is equipped with terminal box 8 structure outward, and output line 83 is fixed through solidus clamp 82, can satisfy first fixed point turning radius's needs, improves output line 83's stability simultaneously, also makes things convenient for the cable to maintain.

Claims

1. A range extender with a three-phase line fixing structure 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), an end cover (9), a rotary transformer (10), a bearing (11) and an output assembly (12); 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 (9); one end of the motor shell (4) connected with the engine body of the engine (1) is provided with a first through hole, and the end cover (9) is provided with a second through hole penetrating through the end face of the end cover;

one end of the rotor support (5) is coaxially and fixedly connected with a crankshaft (2) of an engine (1), the crankshaft (2) of the engine (1) penetrates through the through hole, the end of the rotor support (5) is also in transmission connection with a starting gear ring (13), the rotor assembly (6) is fixedly installed on an outer ring of the rotor support (5), and an output assembly (12) coaxially and fixedly connected with the rotor support (5) protrudes from the other end of the rotor support;

the output assembly (12) comprises an output shaft and an output gear, one end of the output shaft is coaxially and fixedly connected with the rotor bracket (5), and the other end of the output shaft penetrates through a second through hole of the end cover (9) and is coaxially and fixedly connected with the output gear; the outer ring of the output shaft is sequentially fixedly sleeved with a bearing (11) and a rotating end of a rotary transformer (10); the outer ring of the bearing (11) is matched with the inner ring of the second through hole, and the fixed end of the rotary transformer (10) is fixedly arranged on the inner ring of the second through hole;

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

a junction box (8) is fixedly arranged on the outer wall of the motor shell (4), and a wire fixing clamp (82) is fixedly connected to the outer part of the junction box (8) through a fixing support;

the wire fixing clamp (82) comprises a first clamping plate, a second clamping plate and an adjusting screw (821), wherein the first clamping plate, the second clamping plate and the adjusting screw (821) are vertically distributed, a wire fixing hole used for fixing an output wire (83) is formed between the first clamping plate and the second clamping plate, the adjusting screw (821) penetrates through the first clamping plate and is in threaded connection with the second clamping plate, and the hole diameter of the wire fixing hole is smaller than the outer diameter of the output wire (83);

the fixing support (85) comprises a first supporting rod (851), a second supporting rod (852) and a supporting base plate (853), the first supporting rod (851) and the second supporting rod (852) are respectively located on two sides of the wire fixing clamp (82) and fixedly connected with the junction box (8), and two ends of the supporting base plate (853) are respectively fixedly connected with the first supporting rod (851) and the second supporting rod (852) and fixedly connected with the bottom surface of the second clamping plate.

2. The range extender with a three-phase wire fixing structure as claimed in claim 1, wherein the side wall of the junction box (8) is provided with a threading hole for threading an output wire (83), and the threading hole comprises a retractable hollow screw and a locking nut (84) matched with the outer ring of the hollow screw.

3. The range extender with a three-phase line fixing structure according to claim 1, wherein a compression ring (61) matched with the rotor assembly is fixedly arranged at the end part of the rotor bracket (5) close to the end cover (9).

4. The range extender with a three-phase wire fixing structure according to claim 1, wherein one end of the motor casing (4) is fixedly connected with the engine (1) through a fixing bolt (3).