WO2023082358A1

WO2023082358A1 - Motor structure

Info

Publication number: WO2023082358A1
Application number: PCT/CN2021/133822
Authority: WO
Inventors: 赵滟玺; 赵振华
Original assignee: 赵滟玺
Priority date: 2020-11-16
Filing date: 2021-11-29
Publication date: 2023-05-19
Also published as: CN113922525A; CN218920069U; CN112448492A

Abstract

The present invention relates to the technical field of motor devices, and in particular to a motor structure. The motor structure comprises a motor stator core structure and a rotor structure. The motor stator core structure comprises a cylindrical core having an inner hole formed in the axis. A plurality of pairs of motor winding holes, a plurality of casting fixing holes and a plurality of imbedding fixing holes are evenly distributed on the cylindrical core in a circumferential direction. One end face of the cylindrical core is connected to first fan-shaped head cores for covering motor windings, and the other end face of the cylindrical core is connected to second fan-shaped head cores covering the motor windings. The rotor structure comprises a T-shaped rotor and an end rotor of a cylindrical structure. A single-stator motor is provided with four pairs of interaction working surfaces, a double-stator motor is provided with eight pairs of interaction working surfaces, magnetic isolation areas are further reserved at the two ends of each working surface of the stator and the rotor, hysteresis interference and loss are reduced, high torque and high power generation capacity are achieved, heating and loss are reduced, the motor efficiency is improved, and the present invention is suitable for being popularized and used in all suitable fields.

Description

A motor structure

technical field

The invention relates to the technical field of motor equipment, in particular to a motor structure.

Background technique

Motor, commonly known as "motor", refers to an electromagnetic device that realizes the conversion or transmission of electrical energy and mechanical energy according to the law of electromagnetic induction. It is mainly composed of stator, rotor, frame and accessories. Stator is an important part of motors such as generators and motors. The stator is composed of a motor casing or a stator core fixture, a stator core, and a motor winding. The rotor is composed of the rotor, the motor transmission shaft, the bearing and so on. The main function of the stator core is to generate a rotating magnetic field after electrification or to generate an induced current in the winding through the rotating magnetic field generated by the rotation of the rotor, and the main function of the rotor is to generate torque in the rotating magnetic field of the stator core or through the rotation Generate a rotating magnetic field, its main function is to exchange between electrical energy and mechanical energy.

When the motor is running, there is an electromagnetic field in its internal space and the space occupied by the motor winding and iron core. The performance of the motor is determined by the distribution and change of the electromagnetic field in different media, as well as the interaction with the motor winding current. Modern science has proved that the interior of the motor is a three-dimensional electromagnetic field when it is running, while the existing motor only has the inner circumferential surface of the stator and the outer circumferential surface of the rotor to do work interactively, and the stator core is exposed at both ends of the motor winding. Part of the electromagnetic field of the motor.

In summary, the existing motors waste electromagnetic copper wires, high copper loss, small single-interaction surface torque, small power generation, and local overheating of the motor, low efficiency of the motor, and reduced service life of the motor. Improvements are needed.

Contents of the invention

In order to solve the above-mentioned technical problems, the technical solution provided by the present invention is: a motor structure, including an externally fixed motor and an internally fixed motor, and both the externally fixed motor and the internally fixed motor include a stator core structure and a rotor structure; The iron core structure includes a cylindrical iron core with an inner hole at the center of the axis. There are many pairs of motor winding holes, multiple die-casting fixing holes and multiple insertion fixing holes evenly distributed on the cylindrical iron core along its circumference. The motor winding holes are arranged along the radial direction of the cylindrical iron core, the extension directions of the motor winding holes, the die-casting fixing holes and the insertion fixing holes are all along the axial direction of the cylindrical iron core, the inner peripheral surface of the cylindrical iron core and the outer The circumferential surface is provided with working gaps to form a working surface composed of several magnetic poles; each pair of motor winding holes is equipped with insulating and isolated winding coils, and the coils in multiple pairs of motor winding holes are connected together to form a motor winding. Each pair of motor winding holes Alternately distributed with the fixing holes; one end of the cylindrical iron core is connected with the first fan-shaped iron core for covering the motor winding, and the other end of the cylindrical iron core is connected with the second fan-shaped iron core covering the motor winding. Core, the first fan-shaped head core and the second fan-shaped head iron core are all provided with insulation isolation and inserted into the fixing hole to realize the connection with the cylindrical iron core. A working gap is set between adjacent fan-shaped head core units, and the working The inside of the gap is provided with a winding hole that fits the shape of the motor winding to form a working end face composed of several magnetic poles; a placement slot along the circumference of the cylindrical iron core is provided, and the first fan-shaped head core and the second fan-shaped head iron core The connection position is located in the placement groove, and the connection position is fixed by the cap head iron core installed in the placement groove. The end of the cylindrical iron core connected to the second sector head iron core is provided with a guide wedge cap head iron core and an annular guide wedge. The iron core is used for expansion and fixing when the iron core is connected; the die-casting fixing holes at both ends of the cylindrical iron core are provided with isolation blocks for die-casting isolation, and some isolation blocks are provided with water pipe connectors, and each pair of motor winding holes Between the die-casting fixing hole and the opening of the working gap at the other end of the die-casting fixing hole, spacers are provided, and the spacer block and the spacer are nested and fixed to form a ring-shaped isolation. The inner wall of the die-casting fixing hole is coated with an isolation coating; The shaped iron core, the first fan-shaped head iron core, the second fan-shaped head iron core, the hat head iron core and the guide wedge hat head iron core are fixed by die-casting by injecting material into the die-casting fixing hole, and the die-casting fixing part is also a magnetic isolation area;

The rotor structure includes a T-shaped rotor and an end rotor with a cylindrical structure; the T-shaped rotor includes a working disc and a working cylinder, the first working surface is provided on the disk surface of the working disc, and the cylindrical surface of the working cylinder is provided with On the second working surface, the working disc covers the first fan-shaped iron core, and the working cylinder is inserted into the inner hole of the cylindrical iron core. The surface and the inner peripheral surface of the cylindrical iron core are the second interactive work surface; the end rotor is sleeved on the outer circumference of the cylindrical iron core, the T-shaped rotor is fixedly connected with the end rotor, and the bottom surface of the end rotor is provided with a third working surface , there is a fourth working surface on the inner wall of the end rotor, the third working surface and the end surface of the second fan-shaped core are the third interactive work surface, and the fourth working surface and the outer peripheral surface of the cylindrical iron core are the fourth interactive work surface. Work surface;

The external fixed motor also includes a motor casing, the stator core structure and the rotor structure are installed in the motor casing, the ports on both sides of the motor casing are respectively connected to the front end cover and the rear end cover, the motor shaft and the T-shaped rotor The center hole key connection, one end of the motor shaft is connected to the front end cover through the bearing, and the other end is connected to the rear end cover through the bearing. Shell die-casting fixed into one;

The motor casing is provided with a water inlet, a water outlet, an outlet slot and a junction box, the junction box is provided with a connection terminal, and a heat dissipation water pipe is arranged in the die-casting fixing hole of the stator core structure, and the heat dissipation water pipe passes through the water pipe on the isolation block The connectors are connected in series, the inlet and outlet pipes of the heat dissipation water pipe are connected to the heat dissipation water channel set in the motor casing, the heat dissipation water channel is connected to the water inlet and the water outlet, and the lead wires of the motor winding pass through the outlet slots and are connected to the terminals in the junction box;

The internal fixed motor also includes a fixed shaft and a fixed piece, the fixed piece is inserted into the inner hole of the cylindrical iron core, and the working cylinder of the T-shaped rotor is inserted into the gap reserved between the inner hole of the cylindrical iron core and the fixed piece; One end of the inner circumference of the cylindrical iron core close to the end rotor is fixed by injecting material into the die-casting fixing hole and fixed by die-casting of the fixing piece; The fixed shaft is connected to the fixed shaft through the bearing; the fixed part is provided with an outlet slot, and the center of the fixed shaft is provided with a motor winding outlet hole, which is used for connecting the lead wire of the motor winding with the external wiring harness.

As an improvement, the placement groove is located on the outer peripheral surface of the cylindrical iron core, the die-casting fixing hole is located on the outside of the motor winding hole, the outer peripheral surface of the first fan-shaped head core and the outer peripheral surface of the second fan-shaped head iron core There are isolation blocks for die-casting isolation on each of them, and the isolation blocks are nested and fixed with the isolation bars to form a ring isolation.

As an improvement, the placement groove is located on the inner peripheral surface of the cylindrical iron core, the die-casting fixing hole is located on the inner side of the motor winding hole, the inner peripheral surface of the first fan-shaped head iron core and the inner peripheral surface of the second fan-shaped head iron core There are isolation blocks for die-casting isolation on each of them, and the isolation blocks are nested and fixed with the isolation bars to form a ring isolation.

As an improvement, the motor structure also includes a combination of a multi-stator structure and a multi-rotor structure.

The advantage of the present invention compared with prior art is:

1. The cylindrical core, the first fan-shaped core, the second fan-shaped core and the hat-head core together form a three-dimensional magnetic circuit structure with an axial, radial and omnidirectional magnetic field, making full use of the three-dimensional and omnidirectional electromagnetic field of the motor , the omni-directional magnetic field work also improves the saturation magnetic induction intensity. At the same time, a cooling water pipe is installed in the die-casting fixing hole of the stator core structure, which can reduce the local overheating of the traditional motor core. Each coil of the motor winding is surrounded by the core. , not exposed like traditional motors, making each side of the motor winding coil an effective side, saving electromagnetic copper wires, reducing coil copper consumption and heat generation, and magnetic isolation areas are reserved at both ends of each working surface of the stator and rotor , reducing hysteresis interference and loss, the motor improves electromagnetic conversion efficiency, reduces heat and loss, and achieves energy saving and high efficiency;

2. The structure of each set of stator cores consists of several magnetic poles to form four axial and radial work surfaces. With the rotor structure, the single-stator motor has four pairs of interactive work surfaces, and the double-stator motor has eight pairs of interactive work surfaces. Realized high torque, high power generation and high efficiency;

3. When the double-stator motor is used as the vehicle motor, the planetary gear differential device built into the two T-shaped rotors is used as the transmission mechanism to directly connect the drive shaft of the wheel, which reduces the mechanical setting and mechanical loss of the vehicle, reduces the weight of the vehicle, and optimizes the vehicle space , to increase the cruising range of the vehicle.

Description of drawings

Figure 1 is an exploded view of a motor fixed outside the magnetic circuit in the axial, radial, and omnidirectional directions of a single stator;

Figure 2 is an exploded view of a fixed motor in a single-stator axial, radial, and omnidirectional magnetic circuit;

Figure 3 is an exploded view of a dual-stator axial, radial, and omnidirectional magnetic circuit motor;

Fig. 4 is the general assembly drawing of the stator core structure of the externally fixed motor;

Figure 5 is an exploded view of the stator core structure of the externally fixed motor;

Fig. 6 is the general assembly drawing of the stator core structure of the internally fixed motor;

Figure 7 is an exploded view of the stator core structure of the internally fixed motor;

Fig. 8 is a schematic diagram of the front view structure of the cylindrical iron core with the die-casting fixing hole located outside the motor winding hole;

Fig. 9 is a front view structural diagram of a cylindrical iron core with a die-casting fixing hole located inside the motor winding hole;

Figure 10 is a schematic diagram of the connection between the core with the die-casting fixing hole located outside the winding hole of the motor and the core with the annular guide wedge;

Figure 11 is a schematic diagram of the core with the die-casting fixing hole located outside the motor winding hole;

Fig. 12 is a schematic diagram of an annular guide wedge iron core with a die-casting fixing hole located outside the motor winding hole;

Fig. 13 is a schematic diagram of the connection between the core with the die-casting fixing hole located inside the motor winding hole and the annular guide wedge core;

Fig. 14 is a schematic diagram of an annular guide wedge iron core with a die-casting fixing hole located inside the motor winding hole;

Fig. 15 is a schematic diagram of the guide wedge cap head iron core with the die-casting fixing hole located inside the motor winding hole;

Fig. 16 is a schematic diagram of the connection between the first fan-shaped head core and the second fan-shaped head iron core;

Fig. 17 is a split schematic diagram of a single fan-shaped head core unit;

Figure 18 is a perspective view of a single T-shaped rotor;

Figure 19 is a three-dimensional view of the combined relationship between two T-shaped rotors;

Figure 20 is a perspective view of a single end rotor;

Fig. 21 is a cross-sectional view of the structure of a dual-stator axial, radial, and omnidirectional magnetic circuit motor;

Fig. 22 is a cross-sectional view of the structure of a motor fixed outside the magnetic circuit in the axial, radial, and omnidirectional directions of a single stator;

Fig. 23 is a cross-sectional view of the fixed motor structure in the axial, radial and omni-directional magnetic circuits of a single stator;

Figure 24 is a cross-sectional view of the stator core and motor winding structure of the externally fixed motor;

Fig. 25 is a cross-sectional view of the stator core and motor winding structure of the internally fixed motor;

Figure 26 is a schematic side view of the stator core, water pipes and isolation blocks of the externally fixed motor;

Fig. 27 is a schematic front view of the motor housing of the externally fixed motor.

As shown in the figure: 1. Front end cover, 2. T-shaped rotor, 3. Stator core structure, 4. Motor casing, 5. End rotor, 6. Rear end cover, 7. Motor shaft, 8. Fixed shaft, 9. Fixing piece, 10. Vehicle drive shaft, 11. Planetary gear differential device, 12. First fan-shaped head iron core, 13. Second fan-shaped head iron core, 14. Cylindrical iron core, 15. Connecting shaft, 16 , cap head iron core, 17, motor winding, 18, spacer bar, 19, spacer block, 20, placement slot, 21, die-casting fixing hole, 22, motor winding hole, 23, inserting fixing hole, 24, inner hole, 25. Working disc, 26. Working cylinder, 27. Second working surface, 28. First working surface, 29. Magnetic isolation area, 30. Center hole, 31. Third working surface, 32. Fourth working surface, 33 , guide wedge cap head iron core, 34, annular guide wedge iron core, 35, water inlet, 36, water outlet, 37, junction box, 38, cooling water pipe, 39, water pipe connector.

Detailed ways

In order to clearly illustrate the technical characteristics of this solution, the following will describe this solution through specific implementation modes in conjunction with accompanying drawings 1-27.

Example 1:

A single-stator axial radial omni-directional magnetic circuit external fixed motor, as shown in Figures 1, 4, 5, 8, 10, 11, 12, includes a stator core structure 3 and a rotor structure; the stator core structure 3. It includes a cylindrical iron core 14 with an inner hole 24 at the center of the axis. On the cylindrical iron core 14, a plurality of pairs of motor winding holes 22, a plurality of die-casting fixing holes 21 and a plurality of insertion fixing holes are evenly distributed along its circumference. Holes 23, every pair of motor winding holes 22 are all arranged radially along the cylindrical iron core 14, and the extension directions of the motor winding holes 22, the die-casting fixing holes 21 and the insertion fixing holes 23 are all along the axial direction of the cylindrical iron core 14, The die-casting fixing hole 21 is located on the outside of the motor winding hole 22, and the inner and outer peripheral surfaces of the cylindrical iron core 14 are provided with working gaps to form a working surface composed of several magnetic poles; each pair of motor winding holes 22 is provided with insulation The winding coils are isolated, and the coils in multiple pairs of motor winding holes 22 are connected together to form a motor winding 17, and each pair of motor winding holes 22 and fixed holes 23 are alternately distributed; one of the end faces of the cylindrical iron core 14 is connected for covering The first fan-shaped head iron core 12 of the motor winding 17 is connected to the second fan-shaped head iron core 13 covering the motor winding 17 at the other end face of the cylindrical iron core 14, the first fan-shaped head iron core 12 and the second fan-shaped head iron core 13 are all equipped with insulation isolation and inserted into the fixing hole 23 to realize the connection with the cylindrical iron core 14. A working gap is set between adjacent fan-shaped head core units, and a winding hole that fits the shape of the motor winding 17 is set inside the working gap , forming a working end face composed of several magnetic poles; on the outer circumference of the cylindrical iron core 14, a placement groove 20 along its circumference is provided, and the connecting position of the first fan-shaped head iron core 12 and the second fan-shaped head iron core 13 is located at Placed in the slot 20, the connection position is limited by the hat head iron core 16 installed in the placement slot 20; in the actual production process, in order to facilitate installation and fixation, one end of the cylindrical iron core 14 connected to the second sector head iron core 13 Guide wedge cap head iron core 33 and annular guide wedge iron core 34 are set, guide wedge cap head iron core 33 is a single part, and annular guide wedge iron core 34 is a continuous integral part along the circumferential direction, from cylindrical iron core 14 After insulation is set in the circumferential direction, the fan-shaped head iron core laminations are laminated in the outer circumferential direction. The iron core laminations composed of the first fan-shaped head iron core 12 and the second fan-shaped head iron core 13, as long as they can pass through the insertion hole , can be an uninterrupted whole piece structure, which is introduced and pressed and fixed by the guide wedge part of the annular guide wedge iron core 34. After the fan-shaped head iron core is stacked, the guide wedge cap head iron core 33 is wedged, and the guide wedge cap head iron The top of the core 33 is fixed with the adjacent iron core again, an insulating plate is arranged between the cylindrical iron core 14 and the fan-shaped

head iron core

12, 13, an insulating layer is set between the motor winding 17 and the iron core to isolate and the overall insulation potting is fixed; The die-casting fixing holes 21 at both ends of the cylindrical iron core 14 are provided with isolation blocks 19 for die-casting isolation, part of the isolation blocks 19 are provided with water pipe connectors 39, and between each pair of motor winding holes 22 and the die-casting fixing holes 21 and The working gap openings at the other ends of the die-casting fixing holes 21 are all provided with spacer strips 18, and the spacer blocks 19 and the spacer strips 18 are nested and fixed to form a ring-shaped isolation, which is sleeved on the outer circumferential surfaces of the fan-shaped

head iron cores

12, 13. The inner wall of die-casting fixing hole 21 is coated with isolation coating; Inject material into the fixing hole 21 and fix it by die-casting, and the fixed part of the die-casting is also the magnetic isolation area 29; the stator core structure 3 is composed of several magnetic poles to form four working surfaces in the axial and radial directions, and the four working surfaces are respectively the first fan-shaped head iron The working end face of the core 12, the working end face of the second fan-shaped head iron core 13, the working surface of the inner circumference of the cylindrical iron core 14 and the working surface of the outer circumference of the cylindrical iron core 14;

The rotor structure includes a T-shaped rotor 2 and an end rotor 5 of a cylindrical structure; the T-shaped rotor 2 includes a working disc 25 and a working cylinder 26. The cylindrical surface of cylinder 26 is provided with second work face 27, and work disc 25 covers first fan-shaped head iron core 12, and work cylinder 26 inserts the inner hole 24 of cylindrical iron core 14; The end face of the head iron core 12 is the first interactive working surface, the second working surface 27 and the inner peripheral surface of the cylindrical iron core 14 are the second interactive working surface; the end rotor 5 is sleeved on the outer circumference of the cylindrical iron core 14, The T-shaped rotor 2 is fixedly connected with the end rotor 5; the bottom surface of the end rotor 5 is provided with a third working surface 31, and the inner wall of the end rotor 5 is provided with a fourth working surface 32; the third working surface 31 and the second fan-shaped head iron The end surface of the core 13 is the third interaction work surface, and the fourth work surface 32 and the outer peripheral surface of the cylindrical iron core 14 are the fourth interaction work surface. A magnetic isolation zone 29 is set between the first working surface 28 and the second working surface 27, and a magnetic isolation zone 29 is set between the third working surface 31 and the fourth working surface 32. The mode that the magnetic isolation zone 29 adopts is that the first working surface 28 and the second working surface A non-magnetic material is provided between the two working surfaces 27 at a certain distance, and a non-magnetic material is provided between the third working surface 31 and the fourth working surface 32 at a certain distance. The function of the magnetic isolation zone 29 is to reduce the hysteresis resistance.

The external fixed motor also includes a motor casing 4, the stator core structure 3 and the rotor structure are installed in the motor casing 4, and the end of the cylindrical iron core 14 that is far away from the end rotor 5 passes through the die-casting fixing hole 21 The injection material and the motor casing 4 are die-casted and fixed into one body. The ports on both sides of the motor casing 4 are respectively connected to the front end cover 1 and the rear end cover 6. The motor shaft 7 is keyed to the central hole 30 of the T-shaped rotor 2. The motor shaft 7 One end of the motor is connected to the front end cover 1 through a bearing, and the other end is connected to the rear end cover 6 through a bearing; the motor casing 4 is provided with a water inlet, a water outlet, an outlet slot and a junction box, and the junction box is provided with a terminal. The die-casting fixing hole 21 of the stator core structure 3 is provided with a heat dissipation water pipe 38, and the heat dissipation water pipe 38 is connected in series through the water pipe connector 39 on the isolation block 19. The water channel connects the water inlet 35 and the water outlet 36, and the lead wire of the motor winding 17 passes through the wire outlet slot and is connected with the terminal in the junction box 37.

Example 2:

A fixed motor in a single stator axial, radial and omnidirectional magnetic circuit, as shown in Figures 2, 6, 7, 9, 13, 14, and 15, includes a stator core structure 3 and a rotor structure; the stator core structure 3. It includes a cylindrical iron core 14 with an inner hole 24 at the center of the axis. On the cylindrical iron core 14, a plurality of pairs of motor winding holes 22, a plurality of die-casting fixing holes 21 and a plurality of insertion fixing holes are evenly distributed along its circumference. Holes 23, every pair of motor winding holes 22 are all arranged radially along the cylindrical iron core 14, and the extension directions of the motor winding holes 22, the die-casting fixing holes 21 and the insertion fixing holes 23 are all along the axial direction of the cylindrical iron core 14, The die-casting fixing hole 21 is located inside the motor winding hole 22, and the inner and outer peripheral surfaces of the cylindrical iron core 14 are provided with working gaps to form a working surface composed of several magnetic poles; each pair of motor winding holes 22 is provided with insulation The winding coils are isolated, and the coils in multiple pairs of motor winding holes 22 are connected together to form a motor winding 17, and each pair of motor winding holes 22 and fixed holes 23 are alternately distributed; one of the end faces of the cylindrical iron core 14 is connected for covering The first fan-shaped head iron core 12 of the motor winding 17 is connected to the second fan-shaped head iron core 13 covering the motor winding 17 at the other end face of the cylindrical iron core 14, the first fan-shaped head iron core 12 and the second fan-shaped head iron core 13 are all equipped with insulation isolation and inserted into the fixing hole 23 to realize the connection with the cylindrical iron core 14. A working gap is set between adjacent fan-shaped head core units, and a winding hole that fits the shape of the motor winding 17 is set inside the working gap , forming a working end face composed of several magnetic poles; on the inner circumference of the cylindrical iron core 14, there is a placement groove 20 along its circumference, and the connecting position of the first fan-shaped head iron core 12 and the second fan-shaped head iron core 13 is located at Placed in the slot 20, the connection position is limited by the hat head iron core 16 installed in the placement slot 20; in the actual production process, in order to facilitate installation and fixation, one end of the cylindrical iron core 14 connected to the second sector head iron core 13 Guide wedge cap head iron core 33 and annular guide wedge iron core 34 are set, guide wedge cap head iron core 33 is a single part, and annular guide wedge iron core 34 is a chain integral part along the circumferential direction, from the outside of cylindrical iron core 14 Insulation is set in the circumferential direction, and the fan-shaped head iron core laminations are laminated in the inner circumferential direction. The iron core laminations composed of the first fan-shaped head iron core 12 and the second fan-shaped head iron core 13, as long as they can pass through the insertion hole , can be an uninterrupted whole piece structure, which is introduced and pressed and fixed by the guide wedge part of the annular guide wedge iron core 34. After the fan-shaped head iron core is stacked, the guide wedge cap head iron core 33 is wedged, and the guide wedge cap head iron The top of the core 33 is fixed with the adjacent iron core again, an insulating plate is arranged between the cylindrical iron core 14 and the fan-shaped head iron core 12, 13, an insulating layer is set between the motor winding 17 and the iron core to isolate and the overall insulation potting is fixed; The positions of the die-casting fixing holes 21 at both ends of the cylindrical iron core 14 are provided with isolation blocks 19 for die-casting isolation, and the working gap openings between each pair of motor winding holes 22 and the die-casting fixing holes 21 and the other end of the die-casting fixing holes 21 are provided with Spacer strip 18, the spacer block 19 and spacer strip 18 are nested and fixed to form a ring-shaped spacer, which is set on the inner circumferential surface of the fan-shaped head iron core 12, 13, and the inner wall of the die-casting fixing hole 21 is coated with a spacer coating; The cylindrical iron core 14, the first fan-shaped head iron core 12, the second fan-shaped head iron core 13, the cap head iron core 16 and the guide wedge cap head iron core 33 are fixed by die-casting by injecting a fixing material into the die-casting fixing hole 21, and the die-casting is fixed The position is also the magnetic isolation area 29 at the same time; the stator core structure 3 is composed of several magnetic poles to form four axial and radial work surfaces, and the four work surfaces are respectively the work end face of the first fan-shaped head iron core 12 and the second fan-shaped head iron core. 13 working end faces, the inner circumference working surface of the cylindrical iron core 14 and the outer circumference working surface of the cylindrical iron core 14.

The rotor structure includes a T-shaped rotor 2 and an end rotor 5 of a cylindrical structure; the T-shaped rotor 2 includes a working disc 25 and a working cylinder 26. The cylindrical surface of cylinder 26 is provided with second work face 27, and work disc 25 covers first fan-shaped head iron core 12, and work cylinder 26 inserts the inner hole 24 of cylindrical iron core 14; The end face of the head iron core 12 is the first interactive work surface, the second working surface 27 and the inner peripheral surface of the cylindrical iron core 14 are the second interactive work surface; the end rotor 5 is sleeved on the outer circumference of the cylindrical iron core 14, The T-shaped rotor 2 is fixedly connected with the end rotor 5; the bottom surface of the end rotor 5 is provided with a third working surface 31, and the inner wall of the end rotor 5 is provided with a fourth working surface 32, and the third working surface 31 and the second fan-shaped head iron The end surface of the core 13 is the third interaction work surface, and the fourth work surface 32 and the outer peripheral surface of the cylindrical iron core 14 are the fourth interaction work surface. A magnetic isolation zone 29 is set between the first working surface 28 and the second working surface 27, and a magnetic isolation zone 29 is set between the third working surface 31 and the fourth working surface 32. The mode that the magnetic isolation zone 29 adopts is that the first working surface 28 and the second working surface A non-magnetic material is provided between the two working surfaces 27 and a certain distance is provided, and a non-magnetic material is provided between the third working surface 31 and the fourth working surface 32 and a certain distance is provided. The function of the magnetic isolation zone 29 is to reduce the hysteresis resistance.

The internally fixed motor also includes a fixed shaft 8 and a fixed piece 9, the fixed piece 9 is inserted into the inner hole 24 of the cylindrical iron core 14, and the working cylinder 26 of the T-shaped rotor 2 is inserted into the inner hole 24 of the cylindrical iron core 14 and In the gap reserved by the fixing part 9; the inner circumference of the cylindrical iron core 14 is close to the end of the end rotor 5 by injecting the fixing material into the die-casting fixing hole 21 and fixing the fixing part 9 into one; the fixing shaft 8 and the fixing part 9 Shaft center hole key connection; the center hole 30 of the end rotor 5 and the T-shaped rotor 2 is respectively connected with the fixed shaft 8 through the bearing; The lead wires are connected to the external wiring harness.

Example 3:

A double-stator axial radial omnidirectional magnetic circuit motor, as shown in Figures 3, 4, 5, 8, 10, 11, and 12, includes two sets of stator core structures 3 and two sets of rotor structures; each set The stator core structure 3 includes a cylindrical iron core 14 with an inner hole 24 at the center of the axis. On the cylindrical iron core 14, there are many pairs of motor winding holes 22, multiple die-casting fixing holes 21 and multiple A fixed hole 23 is inserted, and every pair of motor winding holes 22 is arranged radially along the cylindrical iron core 14. The extension directions of the motor winding holes 22, the die-casting fixing holes 21 and the insertion fixing holes 23 are all along the cylindrical iron core 14. In the axial direction, the die-casting fixing hole 21 is located on the outside of the motor winding hole 22, and the inner and outer peripheral surfaces of the cylindrical iron core 14 are provided with working gaps to form a working surface composed of several magnetic poles; each pair of motor winding holes 22 Insulated and isolated winding coils are arranged inside, and the coils in multiple pairs of motor winding holes 22 are connected together to form a motor winding 17, and each pair of motor winding holes 22 and fixed holes 23 are alternately distributed; on one of the end faces of the cylindrical iron core 14 Connect the first fan-shaped head iron core 12 for covering the motor winding 17, connect the second fan-shaped head iron core 13 covering the motor winding 17 at the other end face of the cylindrical iron core 14, the first fan-shaped head iron core 12 and the second The fan-shaped cores 13 are all provided with insulation isolation and inserted into the fixing hole 23 to realize the connection with the cylindrical core 14. A working gap is set between adjacent fan-shaped core units, and a bonding motor winding 17 is arranged inside the working gap. Shaped winding holes form a working end face composed of several magnetic poles; on the outer circumference of the cylindrical iron core 14, there is a placement groove 20 along its circumference, the first fan-shaped head iron core 12 and the second fan-shaped head iron core 13 The connection position is located in the placement groove 20, and the connection position is limited by the hat head iron core 16 installed in the placement groove 20; in the actual production process, in order to facilitate installation and fixing, the second fan-shaped head iron One end of core 13 is provided with guide wedge cap head iron core 33 and annular guide wedge iron core 34, and guide wedge cap head iron core 33 is a single part, and annular guide wedge iron core 34 is a chain integral part along the circumferential direction, from cylindrical After the iron core 14 is provided with insulation in the inner circumferential direction, the fan-shaped head iron core laminations are laminated toward the outer circumferential direction. The iron core laminations composed of the first fan-shaped head iron core 12 and the second fan-shaped head iron core 13, as long as they can pass through the The part that enters the hole can be a whole piece of structure that is not broken. It is introduced and compressed by the guide wedge part of the annular guide wedge iron core 34. The top of the wedge cap iron core 33 is fixed with the adjacent iron core, an insulating plate is arranged between the cylindrical iron core 14 and the fan-shaped

iron core

12, 13, and an insulating layer is set between the motor winding 17 and the iron core to isolate and do overall insulation Potting and fixing; the die-casting fixing holes 21 at both ends of the cylindrical iron core 14 are provided with isolation blocks 19 for die-casting isolation, and part of the isolation blocks 19 are provided with water pipe connectors 39, and each pair of motor winding holes 22 is connected to the die-casting fixing holes. 21 and the opening of the working gap at the other end of the die-casting fixing hole 21 are all provided with spacer bars 18, and the spacer blocks 19 and the spacer bars 18 are nested and fixed to form a ring-shaped isolation, which is sleeved on the outer circumference of the fan-shaped

head iron core

12, 13 On the surface, the inner wall of the die-casting fixing hole 21 is coated with an isolation coating; the cylindrical iron core 14, the first fan-shaped head iron core 12, the second fan-shaped head iron core 13, the cap head iron core 16 and the guide wedge cap head iron core 33 is fixed by die-casting by injecting material into the die-casting fixing hole 21, and the fixed part of the die-casting is also the magnetic isolation area 29; each set of stator core structure 3 consists of several magnetic poles to form four working surfaces in the axial and radial directions, and the four working surfaces are respectively For the first fan-shaped head iron core 12 work end face, the second fan-shaped head iron core 13 work end face, the inner circumference work surface of the cylindrical iron core 14 and the outer circumference work surface of the cylindrical iron core 14;

Each group of rotor structures includes a T-shaped rotor 2 and an end rotor 5 of a cylindrical structure; the T-shaped rotor 2 includes a working disc 25 and a working cylinder 26, and the disc surface of the working disc 25 is provided with a first working surface 28 for working The cylindrical surface of cylinder 26 is provided with second work face 27, and work disc 25 covers first fan-shaped head iron core 12, and work cylinder 26 inserts the inner hole 24 of cylindrical iron core 14; The end face of the head iron core 12 is the first interactive working surface, the second working surface 27 and the inner peripheral surface of the cylindrical iron core 14 are the second interactive working surface; the end rotor 5 is sleeved on the outer circumference of the cylindrical iron core 14, The T-shaped rotor 2 is fixedly connected with the end rotor 5; the bottom surface of the end rotor 5 is provided with a third working surface 31, and the inner wall of the end rotor 5 is provided with a fourth working surface 32; the third working surface 31 and the second fan-shaped head iron The end surface of the core 13 is the third interaction work surface, and the fourth work surface 32 and the outer peripheral surface of the cylindrical iron core 14 are the fourth interaction work surface. A magnetic isolation zone 29 is set between the first working surface 28 and the second working surface 27, and a magnetic isolation zone 29 is set between the third working surface 31 and the fourth working surface 32. The mode that the magnetic isolation zone 29 adopts is that the first working surface 28 and the second working surface A non-magnetic material is provided between the two working surfaces 27 at a certain distance, and a non-magnetic material is provided at a certain distance between the third working surface 31 and the fourth working surface 32. The function of the magnetic isolation zone 29 is to reduce the hysteresis resistance.

The two end rotors 5 of the two groups of rotor structures are oppositely arranged, and the two T-shaped rotors 2 are symmetrically arranged, and the working discs 25 of the two T-shaped rotors 2 are connected and fixed; the two sets of stator core structures 3 are respectively installed on the two In one motor casing 4, two motor casings 4 are fixedly connected by bolts, one of the motor casings 4 is connected to the front end cover 1, and the other motor casing 4 is connected to the rear end cover 6; the two T-shaped rotors 2 A transmission mechanism is arranged in the central hole 30 .

Described transmission mechanism is motor shaft, and motor shaft is connected with the center hole 30 key of two T-shaped rotors 2, and one end of motor shaft is connected with front end cover 1 by bearing, and the other end is connected with rear end cover 6 by bearing.

The transmission mechanism is a planetary gear differential device 11, and the planetary gear differential device 11 is fixedly installed between two T-shaped rotors 2, and the connection of the two T-shaped rotors is sealed and connected by a sealing ring, and the interior is filled with lubricating oil. The two ends of the planetary gear differential device 11 are respectively connected to two vehicle drive shafts 10, and the two vehicle drive shafts 10 pass through the center holes 30 of the two T-shaped rotors respectively, and the position where the vehicle drive shaft passes through the center holes passes through the sealing ring Sealing: on the working cylinder 26 of each T-shaped rotor, the connecting shaft 15 passing through the end rotor 5 is fixedly connected, one of the connecting shafts 15 is connected to the front end cover 1 through a bearing, and the other connecting shaft is connected to the rear end cover 6 through a bearing connect. When the double-stator motor is used as a vehicle motor, the planetary gear differential device 11 built into the two T-shaped rotors is used as the transmission mechanism to directly connect the drive shaft of the wheel, which reduces the mechanical setting and mechanical loss of the vehicle, reduces the weight of the vehicle, and optimizes the space of the vehicle. Increase the cruising range of the vehicle.

Each motor casing 4 is provided with a water inlet, a water outlet, an outlet slot and a junction box, and a junction box 37 is provided with a terminal, and a heat dissipation water pipe 38 is arranged in the die-casting fixing hole 21 of the stator core structure 3, and the heat dissipation water pipe 38 are connected in series through the water pipe connector 39 on the isolation block 19, the inlet and outlet pipes of the heat dissipation water pipe 38 are connected to the heat dissipation water channel provided in the motor casing 4, the heat dissipation water channel is connected to the water inlet 35 and the water outlet 36, and the lead wire of the motor winding 17 passes through The wire outlet groove is connected with the wiring terminal in the junction box 37.

The present invention and its implementations have been described above, and this description is not limiting. What is shown in the drawings is only one of the implementations of the present invention, and the actual structure is not limited thereto. All in all, if a person of ordinary skill in the art is inspired by it, without departing from the inventive concept of the present invention, without creatively designing a structure and an embodiment similar to the technical solution, it shall fall within the scope of protection of the present invention.

Claims

A motor structure, characterized in that: it includes an externally fixed motor and an internally fixed motor, and both the externally fixed motor and the internally fixed motor include a stator core structure (3) and a rotor structure; the stator core structure (3) includes A cylindrical iron core (14) with an inner hole (24) is arranged at the axial center, and there are many pairs of motor winding holes (22) and a plurality of die-casting fixing holes ( 21) and multiple fixing holes (23), each pair of motor winding holes (22) are arranged radially along the cylindrical iron core (14), the motor winding holes (22), the die-casting fixing holes (21) and the setting The extension direction of the fixed hole (23) is all along the axial direction of the cylindrical iron core (14), and the inner and outer peripheral surfaces of the cylindrical iron core (14) are provided with working gaps to form a working force composed of several magnetic poles. surface; each pair of motor winding holes (22) is provided with insulation and isolation winding coils, and the coils in many pairs of motor winding holes (22) are connected together to form a motor winding (17), and each pair of motor winding holes (22) and the insertion The fixing holes (23) are alternately distributed; one of the end faces of the cylindrical iron core (14) is connected to the first fan-shaped head iron core (12) for covering the motor winding (17), and on the other side of the cylindrical iron core (14) One end face is connected to the second fan-shaped head iron core (13) covering the motor winding (17), and the first fan-shaped head iron core (12) and the second fan-shaped head iron core (13) are all provided with insulation isolation and inserted into the fixing hole (23 ) to realize the connection with the cylindrical iron core (14), a working gap is set between the adjacent fan-shaped head core units, and a winding hole that fits the shape of the motor winding (17) is set inside the working gap, forming a plurality of magnetic poles Composed work end face; Cylindrical iron core (14) is provided with a placement groove (20) along its circumference, the connecting position of the first fan-shaped head iron core (12) and the second fan-shaped head iron core (13) is placed In the groove (20), the connection position is limited and fixed by the hat head iron core (16) installed in the placement groove (20), and one end of the cylindrical iron core (14) connected to the second fan-shaped head iron core (13) is set The guide wedge cap head iron core (33) and the annular guide wedge iron core (34) are used for tightening and fixing when the iron cores are connected; the die-casting fixing holes (21) at both ends of the cylindrical iron core (14) are provided with In the isolation block (19) isolated by die-casting, water pipe connectors (39) are arranged on part of the isolation block (19), between each pair of motor winding holes (22) and the die-casting fixing hole (21) and the die-casting fixing hole (21) The openings of the working gap at the other end are all provided with spacer strips (18), and the spacer blocks (19) and the spacer strips (18) are nested and fixed to form a ring-shaped spacer, and the inner wall of the die-casting fixing hole (21) is coated with a spacer coating ; Cylindrical iron core (14), the first fan-shaped head iron core (12), the second fan-shaped head iron core (13), the hat head iron core (16) and the guide wedge hat head iron core (33) are fixed by die-casting The injection material in the hole (21) is fixed by die-casting, and the fixed part of the die-casting is also the magnetic isolation area (29);

The rotor structure includes a T-shaped rotor (2) and an end rotor (5) of cylindrical structure; the T-shaped rotor (2) includes a working disc (25) and a working cylinder (26), and the working disc (25) The first working surface (28) is arranged on the disk surface of the working cylinder (26), and the second working surface (27) is arranged on the cylindrical surface of the working cylinder (26). The working disk (25) covers the first fan-shaped head iron core (12), and the working The cylinder (26) is inserted into the inner hole (24) of the cylindrical iron core (14), the end face of the first working surface (28) and the first fan-shaped head iron core (12) is the first interactive working surface, and the second working surface ( 27) The inner peripheral surface of the cylindrical iron core (14) is the second interactive work surface; the end rotor (5) is sleeved on the outer circumference of the cylindrical iron core (14), and the T-shaped rotor (2) and the end rotor ( 5) Fixed connection, the bottom surface of the end rotor (5) is provided with a third working surface (31), the inner wall of the end rotor (5) is provided with a fourth working surface (32), the third working surface (31) and the first The end faces of the two fan-shaped head iron cores (13) are the third interaction work surface, and the fourth work surface (32) and the outer peripheral surface of the cylindrical iron core (14) are the fourth interaction work surface;

The externally fixed motor also includes a motor housing (4), the stator core structure (3) and the rotor structure are installed in the motor housing (4), and the ports on both sides of the motor housing (4) are respectively connected to the front end cover (1) and the rear end cover (6), the motor shaft (7) is keyed to the center hole (30) of the T-shaped rotor (2), one end of the motor shaft (7) is connected to the front end cover (1) through a bearing, and the other One end is connected to the rear end cover (6) through a bearing, and the end of the outer circumference of the cylindrical iron core (14) away from the end rotor (5) is die-cast with the motor casing (4) by injecting material into the die-casting fixing hole (21) fixed into one;

The internal fixed motor also includes a fixed shaft (8) and a fixed piece (9), the fixed piece (9) is inserted in the inner hole (24) of the cylindrical iron core (14), and the working cylinder of the T-shaped rotor (2) ( 26) Insert into the gap reserved between the inner hole (24) of the cylindrical iron core (14) and the fixing piece (9); the inner circumference of the cylindrical iron core (14) near the end of the end rotor (5) passes through the The injection material in the die-casting fixing hole (21) and the fixing piece (9) are die-casted and fixed into one; the fixing shaft (8) is connected with the shaft center hole of the fixing piece (9) with a key; the end rotor (5) and the T-shaped rotor (2) The central hole (30) of the fixed shaft (8) is respectively connected to the fixed shaft (8) through the bearing; Harness connection.
A motor structure according to claim 1, characterized in that: the placement slot (20) is located on the outer circumferential surface of the cylindrical iron core (14), and the die-casting fixing hole (21) is located in the motor winding hole (22) The outer side of the first fan-shaped head iron core (12) and the outer peripheral surface of the second fan-shaped head iron core (13) are all provided with isolation blocks (19) for die-casting isolation, and the isolation blocks ( 19) Nested and fixed with the isolation bar (18) to form a ring-shaped isolation.
A motor structure according to claim 1, characterized in that: the placement slot (20) is located on the inner peripheral surface of the cylindrical iron core (14), and the die-casting fixing hole (21) is located in the motor winding hole (22) The inner side of the first fan-shaped head iron core (12) and the inner peripheral surface of the second fan-shaped head iron core (13) are all provided with isolation blocks (19) for die-casting isolation, and the isolation blocks ( 19) Nested and fixed with the isolation bar (18) to form a ring-shaped isolation.
A motor structure according to claim 1, characterized in that: the motor casing (4) is provided with a water inlet (35), a water outlet (36), an outlet slot and a junction box (37), and the junction box ( 37) is provided with connection terminals, and a heat dissipation water pipe (38) is arranged in the die-casting fixing hole (21) of the stator core structure (3), and the heat dissipation water pipe (38) passes through the water pipe connector (39) on the isolation block (19) In series, the water inlet and outlet pipes of the heat dissipation water pipe (38) are connected to the heat dissipation water channel provided in the motor casing (4), the heat dissipation water channel is connected to the water inlet (35) and the water outlet (36), and the lead-out line of the motor winding (17) passes through the lead-out line slot and be connected with the wiring terminal in the junction box (37).
The motor structure according to claim 1, wherein the motor structure further comprises a combination of a multi-stator structure and a multi-rotor structure.