WO2023217157A1 - 一种轮毂电机 - Google Patents

一种轮毂电机 Download PDF

Info

Publication number
WO2023217157A1
WO2023217157A1 PCT/CN2023/093112 CN2023093112W WO2023217157A1 WO 2023217157 A1 WO2023217157 A1 WO 2023217157A1 CN 2023093112 W CN2023093112 W CN 2023093112W WO 2023217157 A1 WO2023217157 A1 WO 2023217157A1
Authority
WO
WIPO (PCT)
Prior art keywords
rim
ring
wall
end cover
inner groove
Prior art date
Application number
PCT/CN2023/093112
Other languages
English (en)
French (fr)
Inventor
陶开江
Original Assignee
信质集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 信质集团股份有限公司 filed Critical 信质集团股份有限公司
Priority to JP2023600095U priority Critical patent/JP3246889U/ja
Publication of WO2023217157A1 publication Critical patent/WO2023217157A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine
    • B62M7/12—Motorcycles characterised by position of motor or engine with the engine beside or within the driven wheel
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2791—Surface mounted magnets; Inset magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the invention belongs to the technical field of electric vehicle accessories, and specifically refers to a wheel hub motor.
  • a waterproof hub motor which includes a rim.
  • a metal ring is welded to the inner wall of the rim.
  • the inner wall of the metal ring is bonded with magnetic steel through glue.
  • the magnetic steel sheet, metal ring and rim form an outer rotor structure; a stator winding is installed on the fixed shaft; internal threaded holes are provided on both sides of the metal ring, and two end covers are fixed by bolts;
  • rims and end caps are becoming thinner and thinner. Manufacturers can reduce the thickness of rims and end caps to 1.7m; correspondingly, the thinner the rim thickness, the greater the risk of impact deformation. ; The end cover is too thin, resulting in insufficient support strength;
  • the magnetic steel sheet is directly glued to the inner wall of the metal ring, and the metal ring and the rim are welded; the installation base of the magnetic steel sheet is the inner wall of the metal ring, and the installation base of the fixed shaft is the mounting seat on the end cover;
  • the lead wire of the stator winding extends out of the hub through the threading hole and is connected to the controller wire of the electric vehicle.
  • the sealing effect of the lead wire and the threading hole is average, and water vapor in the environment can easily escape from the threading hole. hole into the inside of the hub.
  • the purpose of the present invention is to provide a hub motor with simple structure, good strength, low cost and good waterproof performance.
  • a wheel hub motor including
  • the rim is used to carry the tire;
  • the rim is in the shape of a ring, and an inner groove is formed by being recessed inward on the circumferential side of the rim;
  • End cover one which includes a disc-shaped end cover body, an annular portion and a flange portion; the end cover body extends from the first side of the rim and extends from the second side of the rim. out; the annular portion is located in the middle of the rim; the flange portion is located on the first side of the rim;
  • End cap two is provided on the first side of the rim; the end cap two is installed on the flange part one of the end cap one; the end cap one and the end cap two cooperate to form the inner part of the wheel hub. cavity; cavity
  • a fixed shaft passes through the first end cover and the second end cover; bearings are respectively provided in the middle of the first end cover and the second end cover; both ends of the fixed shaft pass through the bearings;
  • the stator assembly is mounted on the fixed shaft.
  • Bead seats are provided on both sides of the inner groove
  • Both sides of the bead seat extend upward to form a rim, and the rim is provided with an outer flange portion or an inward flange portion;
  • the side wall of the inner groove is inclined toward the middle of the rim; the included angle b between the side wall of the inner groove and the bottom wall of the inner groove is ⁇ 80 degrees, and the included angle b is ⁇ 90 degrees.
  • the rim includes a metal plate
  • Both sides of the width direction of the metal plate are folded upward to form a first bending portion, and the metal plate between the two left and right first bending portions forms the bottom wall of the inner groove.
  • a bending part forms the side wall of the inner groove; the bending angle of the first bending part is greater than 90 degrees;
  • the upper side of the first bending part is folded outward to form a second bending part
  • the outer side of the second bending part is then folded upward to form a third bending part
  • the outer end of the third bent portion is bent outward or inward to form the rim
  • the metal plate is bent into a ring shape along the length direction and welded end to end to form the rim;
  • the thickness of the rim is 1.5mm ⁇ 2mm.
  • a transition section 1 is provided between the bottom wall of the inner groove and the side wall of the inner groove, the thickness of the transition section 1 is smaller than the thickness of the bottom wall, and the thickness of the transition section 1 is Less than the thickness of the side wall; the transition section is located at the bend between the side wall and the bottom wall.
  • the first bending part when the first bending part is folded outward, it is first folded downward to form transition section 2, and then folded outward to form the second bending part;
  • the second transition section extends downward and outward; the second bending portion extends outward and upward.
  • the first end cover includes an end cover main body, which is disk-shaped; the outer end of the end cover main body extends horizontally toward the direction of the second end cover to form a ring portion;
  • the ring part passes through the rim and fits the inner wall of the inner groove of the rim; the front end of the ring part is folded outward to form a flange part 1; the magnetic steel sheet is pasted on the inner wall of the ring part;
  • the end cover body and the bent portion of the annular portion are welded to the inner wall of the rim as one body, and/or the outer edge of the flange portion 1 is welded to the inner wall of the rim as one body;
  • a flange part 2 is provided on the edge of the end cap 2; the flange part 2 and the flange part 1 are detachably connected as a whole through a number of bolted connecting members, so that the end cap 1 and the end cap 2 are tightly matched.
  • the edge of the end cap body expands outward to form a baffle ring portion, which is larger than the inner aperture of the inner groove of the rim; the baffle ring portion and the annular ring portion are transitioned through an arc segment, and the arc segment Fits the corners of the groove in the rim.
  • an inner disk seat is provided in the middle of the end cover body
  • the inner disk seat includes a base, which is disk-shaped;
  • the outer edge of the base is horizontally folded outward to form a brake ring
  • the middle part of the base is folded outward to form a stepped inner ring part 1 and inner ring part 2;
  • the middle part of the main body of the end cover is horizontally folded outward to form a second brake ring.
  • the second brake ring is sleeved on the outside of the first brake ring and welded into one body.
  • the end cover body and the inner disc seat are both thin iron parts; the thickness of the end cover body and the inner disc seat is 1.5 mm to 3 mm.
  • the main body of the end cover is provided with more than one annular reinforcing rib; and the base of the inner disk seat is provided with several radially arranged strip reinforcing ribs.
  • the length of the first brake ring is greater than the length of the second brake ring; the second brake ring and the bent portion 2 of the end cover body are welded to the annulus of the first brake ring.
  • connection bars are provided in the inner groove of the rim, and the bent portions 3 on both sides of the connecting bars are welded to the corresponding rim wall surfaces.
  • a bearing is provided in the middle of the end cover one and the end cover two; the fixed shaft is installed in the bearing; a threading hole is provided at an angle on the fixed shaft, and the lead wire of the hub motor extends out of the threading hole;
  • the threading hole includes an oblique section, the inner wall of the oblique section is provided with a step portion, and the outside of the step portion is provided with an internal thread portion; the lead-out wire includes several wire cores;
  • the fixed shaft of the wheel hub is provided with a threading hole, and the lead wire of the wheel hub motor extends out of the threading hole;
  • the lead-out wire includes several wire cores and outer sheaths; the outer sheath covers the outside of several wire cores; the outer wall of the outer sheath and the threading hole are sealed and matched; and a gap is formed between the wire cores. Channel, one end of the slot channel is led to the inner cavity of the wheel hub motor;
  • the outer end of the lead wire extends upward to the inside of the electric locomotive housing
  • An exhaust joint is installed at the outer end of the lead wire, a separation chamber is provided in the exhaust joint, and a first joint, a second joint and a third joint are provided on the peripheral side of the separation chamber;
  • the outer sheath and the wire core are inserted into the first joint, and the outer sheath and the first joint are sealed;
  • the wire core passes through the separation chamber and then extends from the second joint; the wire core and the second joint are sealed;
  • the gap channel between the wire cores leads to the separation chamber.
  • the third joint is provided with an air-permeable and liquid-impermeable valve member, and the separation chamber communicates with the external environment through the air-permeable and liquid-impermeable valve member.
  • the exhaust joint includes a branch joint and an envelope; the envelope is wrapped around the outside of the branch joint;
  • the separation chamber is provided inside the shunt joint, and the first end, the second end and the third end of the shunt joint are provided on the peripheral side of the separation chamber; the outer sheath and the wire core are inserted into the At the first end, the outer sheath is sealed with the first end; the wire core extends out of the second end, and the third end is provided with an exhaust hole.
  • the outer end of the lead wire extends to the inside of the controller of the electric vehicle; after the wire core extends out of the second connector, it is connected to the circuit board of the controller.
  • the second end is provided with a rubber sleeve body, which is preformed with several through holes, and the through holes correspond to the wire cores one by one; the wire cores pass through the corresponding through holes.
  • a tightening ring is provided on the outside of the rubber sleeve body one; the envelope wraps the rubber sleeve body one.
  • the outer wall of the outer leather cover and the threading hole are sealed by glue.
  • the threading hole includes an oblique section, the inner wall of the oblique section is provided with a step portion, and the outside of the step portion is provided with an internal thread portion;
  • the second rubber cover body is in the shape of a ring; the second rubber cover body is placed on the outside of the outer holster and is against the step portion;
  • the copper sleeve is placed on the outside of the outer leather sleeve and is against the rubber sleeve body 2; the copper sleeve tightens the outer leather sleeve;
  • the nut sleeve is placed on the outside of the outer leather sleeve and is against the copper sleeve; the nut sleeve is screwed into the internal thread part and presses the rubber sleeve body 2.
  • the threading hole is arranged on the fixed shaft at an angle; a protective spring is set on the outside of the outer leather sheath; one end of the protective spring is inserted into the oblique section of the threading hole and fixed, and the other end of the protective spring extends to the end of the threading hole. outside.
  • the end cover includes an insertion ring and a shielding ring; the insertion ring and the shielding ring are partially overlapped; the insertion ring, the shielding ring and the inner wall of the rim are closely fitted; the shielding ring, the insertion ring and the inner wall of the rim are closely connected.
  • the cooperation relationship between them is:
  • An insertion cavity is formed between the outer wall of the shielding ring and the inner wall of the rim, and the insertion ring is inserted into the insertion cavity; the insertion ring and the inner wall of the rim are welded together; the inner wall of the shielding ring is provided with a number of magnetic steel sheets;
  • the matching relationship between the shielding ring, the insertion ring and the inner wall of the rim is: the outer wall of the shielding ring and the inner wall of the rim are in close contact; the outer side of the insertion ring is in close contact with the inner side of the shielding ring, and the insertion ring There are a number of magnetic steel sheets on the inner wall.
  • An electric vehicle includes the wheel hub motor.
  • the annular part of the first end cover of the present invention passes through the rim and fits the inner wall of the inner groove of the rim; the flange part one of the annular part and the flange part two of the end cap two are detachably connected through bolted connecting members;
  • This design enables end caps one and two to directly seal together, eliminating the need for independent metal rings in the existing design, and significantly improving the sealing effect.
  • the widths of flange parts one and two can also be set by yourself. The glue seals more areas and has a higher sealing effect.
  • the first end cover of the present invention is assembled through the end cover main body and the inner disk seat.
  • the first brake ring of the inner disk seat and the second brake ring of the end cover main body are nested and welded; the first brake ring and the second brake ring are superimposed to form a brake seat.
  • the thickness can meet the strength requirements.
  • Both the end cover body and the inner disk seat can be stamped from iron plates with a thickness of 1.5mm to 2mm, which significantly reduces the cost.
  • the edge of the end cap body of the present invention expands outward to form a baffle ring portion, which is larger than the inner aperture of the inner groove of the rim; the baffle ring portion and the circular ring portion are transitioned through an arc segment, and the arc segment fits The corners of the grooves in the rim.
  • the retaining ring part and the flange part 1 can cooperate to clamp the rim, so that the end cover 1 and the rim fit more closely. Even if the welding is uneven or part of it falls off, there will be no problem and the service life will be extended.
  • the main body of the end cover of the present invention is provided with more than one annular reinforcing rib; the base of the inner disk seat is provided with several radially arranged strip reinforcing ribs.
  • the forces on the wheel hub include radial impact force, axial impact force and circumferential shear force.
  • the radial impact force is loaded and dispersed by the rim, and the axial impact force is mainly loaded and dispersed by the end cover body.
  • the annular reinforcement ribs The design makes the load effect better.
  • the circumferential shear force is mainly loaded and dispersed on the inner disc seat.
  • the design of the strip reinforcement makes the load effect better and the strength better.
  • the length of the first brake ring of the present invention is greater than the length of the second brake ring; the second brake ring and the bent part 2 of the end cover body are welded to the annulus of the first brake ring; when subjected to axial impact force, this design makes The load effect is more concentrated on the main body of the end cover, resulting in better stability.
  • connecting bars are provided in the inner groove of the rim of the present invention, and the bent portions on both sides of the connecting bars are welded to the corresponding rim wall surfaces; when the thickness of the rim is thin, the design of the connecting bars can Prevents the rim from splaying outwards and ensures the strength of the rim.
  • the outer end of the lead wire of the present invention extends upward to the inside of the electric vehicle casing, for example, it is directly connected to the inside of the controller. These parts are at a relatively high position and generally do not come into contact with water; a splitter is installed at the outer end of the lead wire. road joint, branch joint A separation chamber is provided inside; the gas and oil inside the hub can pass through the gap channel between the wire cores, conduct to the separation chamber, and then be released into the external environment through the separation chamber.
  • the protective spring of the present invention can effectively prevent the outer leather cover from being scratched by the fixed shaft and protect the internal wire core.
  • Figure 1 is a schematic diagram of an in-wheel motor.
  • FIG. 2 is an exploded view of the hub (stator assembly not shown).
  • FIG. 3 is a cross-sectional view of the hub (stator assembly not shown).
  • Figure 4 is a schematic diagram of the cooperation between the rim and the end cover.
  • Figure 5 is a schematic diagram of end cap one.
  • Figure 6 is a partial cross-sectional view of end cap 1.
  • Figure 7 is a schematic diagram of the outer end of the lead wire.
  • Figure 8 is a cross-sectional view of the outer end of the lead wire.
  • Figure 9 is an exploded view of the outer end of the lead wire.
  • Figure 10 is one of the schematic diagrams of the cooperation between the fixed shaft and the lead wire.
  • Figure 11 is the second schematic diagram of the cooperation between the fixed shaft and the lead wire.
  • Figure 12 is a schematic diagram of the rim and end cap 1.
  • FIG. 13 is an enlarged view of point A in FIG. 12 .
  • Figure 14 is one of the installation diagrams of the magnetic steel sheet.
  • Figure 15 is the second installation diagram of the magnetic steel sheet.
  • Fig. 16 is a schematic diagram of the rim of Example 2.
  • Fig. 17 is a schematic diagram of the rim of Example 3.
  • Figure 18 is a schematic structural diagram of the rim of Example 4.
  • Figure 19 is a schematic diagram of the stress state of the rim in Example 4.
  • Figure 20 is one of the schematic diagrams of the cooperation of the rim, end cap one and end cap two in Embodiment 5.
  • Figure 21 is the second schematic view of the cooperation of the rim, end cap one and end cap two in Embodiment 5.
  • a hub motor includes a rim 10, an end cover 40, an end cover 90, a plurality of magnetic steel sheets 80, a fixed shaft 20 and a stator assembly.
  • the stator assembly and the lead wire are connected
  • the core connection and stator assembly are existing technologies and will not be discussed in this application;
  • the rim 10 is used to carry the tire; the rim is in the shape of a ring, and an inner groove 101 is formed by being recessed inward on the circumferential side of the rim;
  • the end cover 40 includes a disc-shaped end cover body 42, an annular portion 423 and a flange portion 424; the end cover body extends from the first side of the rim and extends from the first side of the rim.
  • the second side protrudes; the annular portion 423 is located in the middle of the rim; the flange portion 424 is located on the first side of the rim;
  • the second end cap 90 is provided on the first side of the rim; the second end cap is installed on the flange part 424 of the first end cap; the first end cap and the second end cap cooperate to form a wheel hub inner cavity; therefore, end cover one and end cover two are directly matched without passing through the rim; the mating parts of end cover two and end cover one are both flat surfaces (i.e., flange part one and flange part two are both flat surfaces ), the glue sealing effect is better;
  • a plurality of magnetic steel sheets 80 are arranged on the inner wall of the annular portion 423 of the end cover 40; the magnetic steel sheets 80 and the inner wall of the annular portion 423 are connected by glue; the rim 10.
  • the first end cover 40, the second end cover 90 and the magnetic steel sheet 80 cooperate to form a rotor assembly; after the stator assembly inside the hub is energized, the magnetic steel sheets of the rotor assembly are affected by the magnetic field to generate driving force.
  • the fixed shaft 20 passes through the end cover one and the end cover two; bearings are respectively provided in the middle of the end cover one and the end cover two; both ends of the fixed shaft pass through the bearings ;
  • the stator assembly is installed on the fixed shaft 20 .
  • the outer peripheral edge of the flange portion 424 is in contact with the inner wall of the shoulder of the rim; a certain distance is provided between the flange portion 424 and the side wall of the inner groove of the rim; This distance is used for the fact that the flange part 1 is formed with a threaded sleeve part 425, and the threaded sleeve part 425 is a structure that protrudes toward the inside of the rim on the flange part 1;
  • the flange part 1, the outer wall of the annular part 423, the side wall of the inner groove of the rim, and the inner wall of the shoulder part of the rim cooperate with each other and form a transition cavity 104; although, the wheel hub manufacturer will An annular welding portion 102 is provided between the outer edge of the first portion and the inner wall of the shoulder of the rim; however, due to the working environment in which the rim is prone to collision during operation, there is a risk that the welding portion 102 may partially fall off.
  • the liquid in the external environment may enter the transition cavity 104; therefore, the interior of the transition cavity 104 needs to be electrophoretically plated in advance; therefore, , it is necessary to provide a through groove on the flange part, which conducts the transition chamber and the external environment of the hub; during electrophoresis, the electrophoresis liquid enters the transition chamber 104 through the through groove.
  • the lifting position is generally selected as the air hole 114.
  • the rest of the rim is relatively smooth and is not easy to lift stably; because the through groove and the air hole on the rim are respectively arranged on different sides of the rim; so The air holes and the through grooves are arranged in a diagonal direction of the rim; on the vertical rolling plane of the wheel hub, the projected positions of the air holes and the through grooves are 180 degrees apart from each other.
  • the through groove is just at the bottom of the corresponding transition cavity 104, and the electrophoresis fluid can be smoothly discharged; after drying, a rubber plug is embedded in the slot of the through groove; the rubber plug is blocked The channel prevents liquid from entering the transition chamber.
  • an auxiliary ring is provided on the inner wall of the annular portion 423.
  • the auxiliary ring includes a ring body 804 and a plurality of separation bars 802 provided on the ring body; the length of the separation bars is approximately half the length of the magnetic steel sheet.
  • the design of the ring allows the magnetic steel sheet 80 to be relatively firmly adhered to the inner wall of the ring part 423, and the glue can fully enter between each magnetic steel sheet; the magnetic steel sheet is a flat sheet, and the inner wall of the ring part 423 is curved. Therefore, there is a certain gap between the magnetic steel sheet and the inner wall of the annular portion 423.
  • the glue When the glue is injected, since the separation strip can slightly hinder the flow rate of the glue, the glue can better enter the magnetic steel sheet and the inner wall of the annular portion 423. in the gap between the inner parts of the rings.
  • the magnetic steel sheet 80 is embedded between two adjacent separation bars; the width of the separation bars is 2 to 3 mm; and the auxiliary ring is bonded to the inner wall of the annular portion.
  • the end cap 140 includes an end cap body 42, which is disk-shaped; the outer end of the end cap body 42 faces the end cap. Two 90° directions extend horizontally to form an annular portion 423;
  • the annular portion 423 passes through the rim 10 and fits the inner wall of the inner groove 101 of the rim; the front end of the annular portion 423 is folded outward to form a flange portion 424; the inner wall of the annular portion 423 is pasted with the Magnetic steel sheet 80;
  • bent portion 103 of the end cap body 42 and the annular portion 423 is welded to the inner wall of the rim, and/or the outer edge of the flange portion 424 is welded to the inner wall of the rim 10; the bent portion 103 is welded to the inner wall of the rim. 103 forms a welding point;
  • the edge of the second end cover 90 is provided with a second flange portion 901; the second flange portion 901 and the first flange portion 424 are detachably connected as a whole through a number of bolt connecting members 902, so that the end cover one 40 and the second end cover 902 are detachably connected together.
  • the sealing effect is significantly improved; the width of flange part one and flange part two can also be set by yourself, providing more areas for glue sealing and higher sealing effect.
  • this embodiment increases and can further reduce the risk of magnetic leakage and improve the external anti-interference ability.
  • an inner disk seat 41 is provided in the middle of the end cover body 42;
  • the inner disk seat includes a base 411, which is disk-shaped;
  • the outer edge of the base 411 is horizontally folded outward to form a braking ring 412;
  • the middle part of the base 411 is folded outward to form a stepped inner ring part 414 and a second inner ring part 415;
  • the middle part of the end cap body 42 is horizontally folded outward to form a second brake ring 426.
  • the second brake ring 426 is sleeved on the outside of the first brake ring 412 and welded into one body.
  • the end cover body 42 and the inner disk seat 41 are both thin iron parts; the thickness of the end cover body 42 and the inner disk seat 41 is 1.5 mm to 3 mm. Brake ring one and brake ring two are superimposed to form a brake seat, and the thickness of the brake seat can meet the strength requirements.
  • the thickness of the brake seat can reach 4mm to meet the strength requirements; this design makes full use of the assembly of two stamped parts and has a significant cost reduction effect.
  • the casting process is time-consuming and laborious, while the stamping process is simple and reliable. The cost difference between the two is huge.
  • the end cover body 42 is provided with more than one annular reinforcing rib 422; the base 411 of the inner disk seat 41 is provided with several radially arranged strip reinforcing ribs 413.
  • the ring-shaped reinforcing ribs 422 and strip-shaped reinforcing ribs 413 not only increase the strength, but are also more effective for specific loads.
  • the stress on the wheel hub can be divided into radial impact force, axial impact force and circumferential shear force.
  • the radial impact force is generally caused by the wheel hub hitting stones or steps during driving.
  • the radial impact force is loaded and dispersed by the rim; therefore, the radial impact force has little impact on the two motor end covers.
  • the axial impact force is generally caused by the lateral impact of the electric vehicle.
  • the impact is mainly borne by the main body of the electric vehicle and has little impact on the wheel hub.
  • the impact is mainly carried and distributed by the end cover body.
  • the design of the annular reinforcement makes Loading effect is better.
  • Circumferential shear force is the main force on the wheel hub. Every time the brake is applied, the brake drum exerts a circumferential shear force on the brake seat; the inner disc seat is the component that directly bears the force, and the design of the strip reinforcement makes The loading effect is better and the strength is better.
  • the length of the first brake ring 412 is greater than the length of the second brake ring 426; the second brake ring 426 and the second bent portion 430 of the end cover body 42 are welded to the annulus of the first brake ring 412, and the second bent portion A welding point is formed at position 430.
  • this design makes the load effect more concentrated on the main body of the end cover, resulting in better stability.
  • the middle parts of the first brake ring 412 and the second brake ring 426 are also welded into one body through spot welding technology, and the welding point is located at the third welding part 431.
  • the bent portions 501 on both sides of the connecting bars 50 are welded to the corresponding rim wall surfaces.
  • adding a connecting strip design can prevent the rim from opening outwards and ensure the strength of the rim.
  • the bending part 3 501 forms a welding point.
  • a bearing is provided in the middle of the first end cover 40 and the second end cover 90; the fixed shaft 20 is passed through the bearing; a threading hole 21 is provided obliquely on the fixed shaft, and the lead wire 30 of the hub motor extends. out of the threading hole 21; the threading hole 21 includes an oblique section 22, the inner wall of the oblique section is provided with a step portion 221, and the outside of the step portion is provided with an internal thread portion 222; the lead wire 30 includes a plurality of wire cores 301 ;
  • the fixed shaft 20 of the wheel hub is provided with a threading hole 21, and the lead wire 30 of the wheel hub motor extends out of the threading hole 21;
  • the lead wire 30 includes several wire cores 301 and outer sheaths 307;
  • the outer sheath 307 is wrapped in several The outside of the wire core 301;
  • the outer wall of the outer sheath 307 and the threading hole 21 are sealed and matched;
  • the power line of the core wire is connected to the battery, and the signal line of the core wire communicates with the external central control device in two directions. connect;
  • the outer end of the lead-out wire 30 extends upward to the inside of the electric locomotive housing; this avoids direct exposure to the environment and improves the protection effect;
  • An exhaust joint 3000 is installed at the outer end of the lead wire 30.
  • a separation chamber 3012D is provided in the exhaust joint 3000.
  • a first joint 3000A, a second joint 3000B and a third joint 3000C are provided around the separation chamber 3012D;
  • the outer sheath and the wire core are inserted into the first connector 3000A, and the outer sheath and the first connector 3000A are sealed;
  • the wire core 301 passes through the separation chamber 3012D and then extends from the second connector 3000B; the wire core 301 and the second connector 3000B are sealed;
  • the gap channel between the wire cores 301 is connected to the separation chamber 3012D.
  • the third joint 3012C is provided with an air-permeable and liquid-impermeable valve member 3013, and the separation chamber 3012D communicates with the external environment through the air-permeable and liquid-impermeable valve member 3013.
  • the exhaust joint 3000 includes a branch joint 3012 and an envelope 3011; the envelope 3011 is wrapped around the outside of the branch joint 3012; the first joint 3000A and the first end 3011A of the envelope form a double seal on the outer leather sheath 307.
  • the separation chamber 3012D is provided inside the shunt joint 3012, and a first end 3012A, a second end 3012B and a third end 3012C are provided on the peripheral side of the separation chamber 3012D; the shunt joint 3012 can also be configured in a tee shape. Or spherical; when the branch joint 3012 is spherical, the first end 3012A, the second end 3012B and the third end 3012C are three holes distributed on the spherical surface;
  • the end of the outer sheath is inserted into the first end 3012A and sealed;
  • the wire core 301 is inserted into the first end 3012A, passes through the separation chamber 3012D, and then extends from the second end 3012B.
  • the wire core 301 and the second end 3012B are sealed; the wire core 301 is round.
  • Shape, a slot channel will be formed between the multiple wire cores 301, one end of the slot channel is connected to the inner cavity of the wheel hub motor, and the other end of the slot channel is connected to the separation chamber 3012D; air and oil will be separated during separation
  • the chamber is trapped and can no longer pass through the second end 3012B, ensuring that the stability of the controller is not affected.
  • the threading hole 21 is set on the fixed shaft. Since the amount of oil inside the hub (usually silicone oil, which is non-conductive) is generally small, the fixed shaft will not be immersed. When the hub rotates, the oil will splash into the core wire. The present invention no longer seeks to block the gap channel between the core wires, but chooses to use the gap channel as an exhaust channel; the air and a small part of the oil in the wheel hub will be discharged upward along the gap channel, and then Processed via shunt connector 3012.
  • silicone oil which is non-conductive
  • the air-permeable and liquid-impermeable valve component 3013 can be purchased from the market. Its core function is to conduct gas to the external environment through a layer of polymer film 3013, but prevent the passage of liquid, which can completely prevent oil from leaking and prevent Water vapor enters.
  • the outer end of the lead wire 30 extends to the inside of the controller of the electric vehicle; after the wire core 301 extends out of the second end 3012B, it is connected to the circuit board of the controller.
  • the second end 3012B is provided with a rubber sheath body 3015.
  • the rubber sheath body 3015 is preformed with a number of through holes 3015A.
  • the through holes correspond to the wire cores 301 one-to-one; the wire cores 301 pass through the corresponding through holes 3015A.
  • a clamping ring 3014 is provided on the outside of the rubber sleeve 3015.
  • the tightening ring 3014 can shrink the rubber sleeve body 3015, so that the rubber sleeve body 3015 can seal the gap channel between the wire cores 301.
  • the shunt joint 3012 is wrapped with an envelope 3011; the envelope 3011 also wraps the rubber sleeve 3015 to achieve a complete sealing effect.
  • the threading hole 21 includes an oblique section 22, the inner wall of the oblique section is provided with a step portion 221, and the outside of the step portion is provided with an internal thread portion 222;
  • the second rubber cover body 304 is in the shape of a ring; the second rubber cover body 304 is set on the outside of the outer leather cover 307 and is against the step portion 221;
  • the copper sleeve 305 is set on the outside of the outer leather sleeve 307 and is against the rubber sleeve body 304; the copper sleeve tightens the outer leather sleeve 307;
  • the nut sleeve 306 is set outside the outer leather sleeve 307 and is against the copper sleeve 305; the nut sleeve 306 is screwed into the internal thread portion 222 and presses the second rubber sleeve 304.
  • the nut sleeve When the nut sleeve is screwed into the internal thread part, it will compress the rubber sleeve body 2.
  • the front section of the rubber sleeve body 2 is against the step part 221.
  • the rubber sleeve body 2 is deformed by external force and compresses the outer leather sleeve 307. This design is for external use.
  • the leather cover and the threading hole 21 are sealed; the outer leather cover 307 is fixed through the copper sleeve to ensure the stability and sealing of the lead wire and prevent water from entering.
  • the nut sleeve and the rubber sleeve body 2 further fix the lead wire on the outside of the hub and improve the sealing performance.
  • the threading hole 21 is arranged obliquely on the fixed shaft; a protective spring 302 is set on the outside of the outer leather sheath 307; one end of the protective spring is inserted into the oblique section 22 of the threading hole 21 and fixed, and the other end of the protective spring extends to the threading hole. outside of hole 21. There are burrs in the threading hole 21, which may cut the outer holster.
  • the design of the protective spring 302 can isolate the flash of the threading hole; the protective spring 302 is directly inserted into the threading hole and can be pulled out with greater force.
  • the iron mentioned in this application refers to steel. This application involves rubber parts that are in direct contact with oil. They are generally made of fluorine-containing rubber. Ordinary rubber will swell, crack, lose elasticity, or even disintegrate if it is exposed to oil for a long time.
  • Embodiment 2 This embodiment is basically the same as Embodiment 1, except that the shape of the inner groove 101 of the rim is improved.
  • the angle b between the side wall 113 of the inner groove of the rim and the bottom wall 111 of the inner groove is less than 90 degrees, and the angle b can be set to between 80 degrees and 90 degrees (excluding 90 degrees).
  • Example is 85 degrees.
  • the side wall 113 of the inner groove is inclined by a certain inclination angle a from the middle part of the rim.
  • This design makes the rim tend to be squeezed inward when it is subjected to radial impact force. Due to the existence of the tire, the rim is hindered when it is squeezed inward, making the ability to resist radial impact force stronger.
  • connecting bars 50 are provided in the inner groove 101, and the bent portions 501 on both sides of the connecting bars 50 are welded to the corresponding rim wall surfaces.
  • the connecting bar 50 is also a stamped iron part, and the bent portions at both ends have a certain degree of elasticity and toughness; although the side walls 113 of the inner groove are inclined inward, the inclination angle is generally small, therefore, When installing the connecting strip 50 into the inner groove, you can directly squeeze both sides of the connecting strip 50 through external force to deform it and enter.
  • the bent portions 501 on both sides of the connecting strip 50 are welded to the rim side walls to form a welded portion.
  • the thickness of the rim is thin, for example, when the thickness of the rim is 1.7mm, adding a connecting strip design can prevent the rim from opening outwards and ensure the strength of the rim.
  • the bent portion 501 forms a welding point.
  • the connecting strip 50 is in the shape of shape.
  • a drum brake ring 424 is installed on the end cover 40 .
  • the side wall 113 of the inner groove is inclined toward the middle of the rim; the distance between the side wall 113 of the inner groove and the bottom wall 111 of the inner groove is The included angle b ⁇ 80 degrees, and the included angle b ⁇ 90 degrees, excluding 90 degrees.
  • the inward-inclined structure in this application means that the side walls 113 of the inner groove are inclined inward.
  • the rim includes a metal plate, and both sides of the metal plate in the width direction are folded upward to form a first bending portion 104a.
  • the metal plate between the left and right first bending portions 104a forms the first bending portion 104a.
  • the bottom wall 111 of the inner groove, and the two first bending parts form the side walls 101 of the inner groove; the bending angle of the first bending part 104a is greater than 90 degrees;
  • the upper side of the first bending part 104a is folded outward to form a second bending part 105a;
  • the outer side of the second bending part 105a is then folded upward to form a third bending part 106a;
  • the outer end of the third bent portion 106a is bent outward or inward to form the rim 103a;
  • the metal plate is bent into a ring shape along the length direction and welded end to end to form the rim 10;
  • the thickness of the rim is 1.5mm ⁇ 2mm; the thickness of the rim can be selected from 1.6mm or 1.7mm or 1.8mm or 1.9mm. The thinner the rim, the lower the production cost and the weaker the impact resistance.
  • the angle b is 81 degrees or 82 degrees or 83 degrees or 84 degrees or 85 degrees or 86 degrees or 87 degrees or 88 degrees or 89 degrees.
  • Embodiment 3 This embodiment is basically the same as Embodiment 1. The difference is that, as shown in Figure 17, the local structure of this embodiment can be slightly deformed to form another embodiment.
  • This embodiment is basically the same as Embodiment 1.
  • the difference is that the edge of the end cap body 42 expands outward to form a blocking ring portion 491, which is larger than the inner aperture of the rim inner groove 101; between the blocking ring portion 491 and the annular portion 423 The transition is through a circular arc segment 492 which fits the corner 110 of the inner groove 101 of the rim.
  • the retaining ring part and the flange part 1 can cooperate to clamp the rim, so that the end cover 1 and the rim fit more closely.
  • the retaining ring part is inserted into the interior of the end cap 1 through the spinning equipment after the end cap 1 is installed into the rim, and the edge of the end cap body 42 is spun, so that the edge of the end cap body 42 expands outward for a certain distance. , thereby forming the blocking ring portion 491.
  • the flange portion 424 is formed with a bolt portion 493 extending outward.
  • Embodiment 4 This embodiment is basically the same as Embodiment 1. The difference is that bead seats 102a are provided on both sides of the inner groove 101 of the rim; both sides of the bead seat 102a extend upward to form a rim 103a.
  • the rim 103a is provided with an outer flange portion 1031; the rim 103a is provided with an inner flange portion 1032; the bottom wall of the inner groove 101 and the inner groove 101
  • a transition section 1001 is provided between the side walls, the thickness of the transition section 1001 is less than the thickness of the bottom wall 111, the thickness of the transition section 1001 is less than the thickness of the side walls; the transition section 1 1001 is located at the bend between the side wall and the bottom wall. This design makes it easier to shape the first bending part during processing.
  • the first bending part when the first bending part is folded outward, it is first folded downward to form the second transition section 1002, and then folded outward to form the second bending part 106a; the second transition section 1002 is turned downward. and extends outward; the second bending portion 106a extends outward and upward.
  • This design allows the rim to release a certain impact force at transition section 2 when receiving an impact force, and then extend the impact force to transition section 2; in fact, as shown in Figure 5, when receiving impact force, The first corner A, the second corner B, the third corner C, and the fourth corner D bear a certain impact force in sequence, so that the impact force received by the first bending part is reduced.
  • Embodiment 5 This embodiment is basically the same as Embodiment 1. The difference is that, as shown in Figures 20-21, the end cap 40 includes an insertion ring 423b and a shielding ring 423a; the insertion ring 423b and the shielding ring 423a.
  • the rings 423a are partially overlapped; the insertion ring 423b, the shielding ring 423a and the inner wall of the rim 10 are in close fit; the matching relationship between the shielding ring 423a, the insertion ring 423b and the inner wall of the rim 10 is:
  • An insertion cavity is formed between the outer wall of the shielding ring 423a and the inner wall of the rim 10, and the insertion ring 423b is inserted into the insertion cavity; the insertion ring and the inner wall of the rim 10 are welded together; the inner wall of the shielding ring 423a is provided with a number of magnets.
  • the matching relationship between the shielding ring 423a, the insertion ring 423b and the inner wall of the rim 10 is: the outer wall of the shielding ring 423a and the inner wall of the rim 10 are closely matched; the outer side of the insertion ring 423b and the shielding ring 423a Close to the inner side of the insertion ring 423b, a number of magnetic steel sheets 80 are provided on the inner wall of the insertion ring 423b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

一种轮毂电机，包括轮辋（10），端盖一（40），端盖二（90），若干个磁钢片（80），固定轴（20）和定子组件。轮辋（10）、端盖一（40）、端盖二（90）和磁钢片（80）配合形成转子组件；端盖一（40）的圆环部（423）穿过轮辋（10）并贴合轮辋（10）的内凹槽（101）的内壁；圆环部（423）的法兰部一（424）和端盖二（90）的法兰部二（901）通过螺栓连接构件（902）可拆卸的连接。

Description

一种轮毂电机 技术领域
本发明属于电动车配件技术领域，特指一种轮毂电机。
背景技术
申请号为CN201920996599.7和CN202020876366.6的专利均公开了一种防水型的轮毂电机，其包括轮辋，在轮辋的内壁焊接有金属圆环，该金属圆环的内壁通过胶水粘接有磁钢片，磁钢片、金属圆环和轮辋形成外转子结构；在固定轴上安装有定子绕组；在金属圆环的两侧分别设有内螺纹孔，并通过螺栓固定有两个端盖；
其缺点如下：
1、虽然端盖和金属圆环之间通过螺栓固定，并通过胶水密封；为了节省成本，金属圆环的厚度不会超过6mm，因此，金属圆环和端盖之间的接触面积有限，上胶水的效果欠佳；金属圆环的两端都需要和端盖密封，长时间使用之后，胶水老化会导致防水失效，水进入电机导致定子绕组漏电，影响电机的安全和使用寿命；
2、只有轮辋是通过铁板冲压并焊接，冲压工艺适用于薄型的金属件；轮毂电机在刹车的时候，刹车座会受到较大的周向剪切力，刹车座必须具备一定的厚度。同时，为了节约成本，刹车座之外的电机端盖的厚度较薄，导致电机端盖的厚度不均衡；电机端盖的厚度不均衡则无法通过薄型铁板冲压，电机端盖必须采用铸铝制件，成本较高；
3、在轮毂减配降本的需求下，轮辋和端盖也越来越薄，厂家可以将轮辋和端盖的厚度降低至1.7m；对应的，轮辋厚度越薄，撞击变形的风险越大；端盖过薄，导致支撑强度不够；
4、电动车在加速或爬坡的时候，大电流持续输出定子绕组，使得轮毂内部的温度较高，导致内部气压变大；气体会从端盖和金属圆环之间的缝隙、固定轴和端盖之间的缝隙排出，内部温度冷却之后，外部环境中的空气会被吸入轮毂中。此时，外部环境中的潮湿空气或水流都会进入轮辋内部；
5、磁钢片是直接胶水粘接在金属圆环的内壁，金属圆环和轮辋焊接；磁钢片的安装基础是金属圆环的内壁，固定轴的安装基础是端盖上的安装座；最终装配完成时，金属圆环内壁的中心轴线一和安装座的中心轴线二是存在细微的偏差，导致轮辋两侧的受力并不均匀；虽然，该差异是及其细微的，但是，长时间工作之后，依然会导致固定轴的磨损，导致端盖和金属环配合失效及漏水的可能性增加；
6、固定轴上开设有穿线孔，定子绕组的引出线通过该穿线孔伸出轮毂并与电动车的控制器电线连接；引出线和穿线孔的密封效果一般，环境中的水汽也容易从穿线孔中进入轮毂内部。
发明内容
本发明的目的是提供一种结构简单、强度好、成本低、防水性能好的轮毂电机。
本发明的目的是这样实现的：
一种轮毂电机，包括
轮辋，其用于承载轮胎；所述轮辋呈圆环状，在轮辋的周侧向内凹陷形成内凹槽；
端盖一，其包括有圆盘状的端盖主体、圆环部和法兰部一；所述端盖主体从所述轮辋的第一侧伸入，并从所述轮辋的第二侧伸出；所述圆环部位于所述轮辋的中部；所述法兰部一位于所述轮辋的第一侧；
端盖二，其设置在所述轮辋的第一侧；所述端盖二安装在所述端盖一的法兰部一上；所述端盖一和所述端盖二配合形成轮毂的内腔；
若干个磁钢片，其设置在所述端盖一的圆环部的内壁上；所述磁钢片与所述圆环部的内壁连接方式为粘贴连接；所述轮辋、端盖一、端盖二和磁钢片配合形成转子组件；
固定轴，其穿过所述端盖一和端盖二；在所述端盖一和所述端盖二的中部分别设置有轴承；所述固定轴的两端穿设在所述轴承内；
定子组件，其安装在所述固定轴上。
在内凹槽的两侧设置有胎圈座；
胎圈座的两侧向上延伸形成轮缘，所述轮缘设置有外翻边部或内翻边部；
所述内凹槽的侧壁向轮辋中部倾斜；所述内凹槽的侧壁与内凹槽的底壁间的夹角b≥80度，且夹角b<90度。
优选地，所述轮辋包括一个金属板材，
所述金属板材的宽度方向的两侧向上翻折形成第一折弯部，左右两个所述第一折弯部之间的金属板材形成所述内凹槽的底壁，两个所述第一折弯部形成所述内凹槽的侧壁；所述第一折弯部的折弯角度大于90度；
所述第一折弯部的上侧向外部翻折形成第二折弯部；
所述第二折弯部的外侧再向上翻折形成第三折弯部；
所述第三折弯部的外端再向外侧或向内侧折弯形成所述轮缘；
所述金属板材沿着长度方向弯曲成圆环状并首尾焊接形成所述轮辋；
所述轮辋的厚度为1.5mm～2mm。
优选地，所述内凹槽的底壁和所述内凹槽的侧壁之间设置有过度段一，所述过度段一的厚度小于所述底壁的厚度，所述过度段一的厚度小于所述侧壁的厚度；所述过度段一位于所述侧壁和底壁之间的折弯处。
优选地，所述第一折弯部向外翻折时，先向下翻折形成过渡段二，再向外翻折形成所述第二折弯部；
所述过渡段二向下并向外延伸；所述第二折弯部向外并向上延伸。
所述端盖一包括端盖主体，端盖主体呈圆盘状；端盖主体的外端部向所述端盖二的方向水平延伸形成圆环部；
圆环部，穿过所述轮辋并贴合轮辋的内凹槽的内壁；圆环部的前端向外翻折形成法兰部一；圆环部的内壁粘贴有所述磁钢片；
所述端盖主体和圆环部的折弯部一与轮辋内壁焊接为一体，和/或，所述法兰部一的外缘与轮辋内壁焊接为一体；
所述端盖二的边缘设置有法兰部二；法兰部二和法兰部一通过若干个螺栓连接构件可拆卸的连接为一体，使得端盖一和端盖二之间密闭配合。
优选地，所述端盖主体的边缘处向外扩展形成挡环部，挡环部大于轮辋内凹槽的内孔径；挡环部和圆环部之间通过圆弧段过渡，该圆弧段贴合轮辋内凹槽的拐角。
优选地，所述端盖主体的中部设置有内盘座；
所述内盘座包括基座，呈圆盘状；
基座的外边缘向外水平翻折形成刹车环一；
基座的中部向外翻折形成阶梯状的内环部一和内环部二；
所述端盖主体的中部向外水平翻折形成刹车环二，刹车环二套装于刹车环一的外部并焊接为一体。
优选地，所述端盖主体和内盘座均为薄型的铁制件；所述端盖主体和内盘座的厚度为1.5mm～3mm。
优选地，所述端盖主体上设置有一道以上的环形加强筋；所述内盘座的基座上设置有若干个放射状布置的条形加强筋。
优选地，所述刹车环一的长度大于刹车环二的长度；所述刹车环二和端盖主体的折弯部二与刹车环一的环面焊接。
优选地，所述轮辋的内凹槽中设置有的若干个“Π”形的连接条，连接条两侧的折弯部三与对应的轮辋壁面焊接。
优选地，所述端盖一和端盖二的中部设置有轴承；所述固定轴穿设在轴承内；所述固定轴上倾斜设置有穿线孔，轮毂电机的引出线伸出该穿线孔；所述穿线孔包括斜向段，斜向段的内壁设置有台阶部，台阶部的外侧设置有内螺纹部；所述引出线包括若干条线芯；
轮毂的固定轴上设置有穿线孔，轮毂电机的引出线伸出该穿线孔；
所述引出线包括若干条线芯和外皮套；外皮套包覆在若干个线芯的外部；所述外皮套的外壁和穿线孔之间密封配合；所述线芯之间形成缝隙通道,缝隙通道的一端导通至轮毂电机的内腔；
所述引出线的外端向上延伸至电机车壳体的内部；
在引出线外端安装有引出线的外端安装有排气接头，排气接头内设置有分离腔室，在分离腔室的周侧设置有第一接头、第二接头和第三接头；
所述外皮套和线芯插入所述第一接头，外皮套和第一接头密封；
所述线芯经过所述分离腔室，再从所述第二接头伸出；线芯和第二接头密封；
线芯之间的缝隙通道导通至所述分离腔室。
优选地，所述第三接头上设置有透气不透液的阀构件，所述分离腔室通过透气不透液的阀构件沟通外部环境。
优选地，所述排气接头包括分路接头和封套；所述封套包裹在分路接头的外部；
所述分路接头内部设置有所述分离腔室，在分离腔室的周侧设置有分路接头的第一端、第二端和第三端；所述外皮套和线芯插入所述第一端，外皮套和第一端密封；所述线芯伸出第二端，所述第三端上设置有排气孔。
优选地，所述引出线的外端延伸至电动车的控制器内部；所述线芯伸出第二接头之后，与控制器的线路板连接。
优选地，所述第二端设置有橡胶套体一，橡胶套体一上预成型有若干个通孔，通孔与线芯一一对应；线芯穿过对应的通孔。
优选地，所述橡胶套体一的外部设置有箍紧环；封套包裹橡胶套体一。
优选地，所述外皮套的外壁和穿线孔之间通过胶水密封。
优选地，所述穿线孔包括斜向段，斜向段的内壁设置有台阶部，台阶部的外侧设置有内螺纹部；
橡胶套体二，呈圆环状；橡胶套体二套装在外皮套的外侧，并抵靠于台阶部；
铜套，套装在外皮套的外侧，并抵靠于橡胶套体二；铜套收紧所述外皮套；
螺母套，其套装在外皮套的外部，并抵靠于铜套；所述螺母套旋入所述内螺纹部，并压紧橡胶套体二。
优选地，所述穿线孔倾斜设置在固定轴上；所述外皮套的外侧套装有防护弹簧；防护弹簧的一端嵌入穿线孔的斜向段并固定，防护弹簧的另一端延伸至穿线孔的外侧。
所述端盖一包括插入环和屏蔽环；所述插入环和屏蔽环部分叠合；所述插入环、屏蔽环和轮辋内壁三者紧密贴合；所述屏蔽环、插入环以及轮辋内壁之间的配合关系为：
所述屏蔽环外侧壁与轮辋内壁之间形成插入腔，所述插入环插入该插入腔内；所述插入环和轮辋内壁焊接为一体；屏蔽环的内侧壁设置有若干磁钢片；
或，所述屏蔽环、插入环以及轮辋内壁之间的配合关系为：所述屏蔽环外侧壁与轮辋内壁之间紧贴配合；所述插入环的外侧与屏蔽环的内侧紧贴，插入环的内侧壁设置有若干磁钢片。
一种电动车，包括所述的轮毂电机。
本发明相比现有技术突出且有益的技术效果是：
本发明的端盖一的圆环部穿过轮辋并贴合轮辋的内凹槽的内壁；圆环部的法兰部一和端盖二的法兰部二通过螺栓连接构件可拆卸的连接；该设计使得端盖一和端盖二直接密封配合，减少了现有设计中的独立的金属圆环，密封效果提升显著；法兰部一和法兰部二的宽幅也可以自行设置，供胶水密封的区域更多，密封效果更高。
本发明的端盖一通过端盖主体和内盘座进行组合，内盘座的刹车环一和端盖主体的刹车环二嵌套并焊接；刹车环一和刹车环二叠加形成刹车座，刹车座的厚度可以满足强度需求，端盖主体和内盘座都可以采用1.5mm～2mm厚度的铁板冲压制作，成本降低显著。
本发明的端盖主体的边缘处向外扩展形成挡环部，挡环部大于轮辋内凹槽的内孔径；挡环部和圆环部之间通过圆弧段过渡，该圆弧段贴合轮辋内凹槽的拐角。挡环部和法兰部一可以配合夹紧轮辋，使得端盖一和轮辋的配合更为紧密，即便焊接不均匀或部分脱落也不会出现问题，延长使用寿命。
本发明的端盖主体上设置有一道以上的环形加强筋；内盘座的基座上设置有若干个放射状布置的条形加强筋。轮毂的受力包括径向冲击力、轴向冲击力和周向的剪切力，径向冲击力由轮辋负荷并分散，轴向冲击力主要由端盖主体进行负荷并分散，环形加强筋的设计使得负荷效果更好，周向的剪切力主要内盘座进行负荷并分散，条形加强筋的设计使得负荷效果更好，强度更好。
本发明的刹车环一的长度大于刹车环二的长度；所述刹车环二和端盖主体的折弯部二与刹车环一的环面焊接；在受到轴向冲击力的时候，该设计使得负荷效果更为集中在端盖主体上，稳定性更好。
本发明的轮辋的内凹槽中设置有的若干个“Π”形的连接条，连接条两侧的折弯部三与对应的轮辋壁面焊接；对于轮辋厚度较薄时，连接条的设计可以防止轮辋向外张开，确保轮辋的强度。
本发明的引出线外端向上延伸至电动车壳体的内部，例如直接连接到控制器的内部，这些部位处于相对较高的位置，一般不会接触到水；在引出线外端安装有分路接头，分路接头 内部设置有分离腔室；轮毂内部的气体和油液可以通过线芯之间的缝隙通道，导通至分离腔室，再通过分离腔室释放与外部环境之中。
本发明的防护弹簧可以有效防止外皮套被固定轴刮伤，保护内部的线芯。
附图说明
图1是轮毂电机的示意图。
图2是轮毂的部件分解图(定子组件未展示)。
图3是轮毂的剖视图(定子组件未展示)。
图4是轮辋和端盖的配合示意图。
图5是端盖一的示意图。
图6是端盖一的局部剖视图。
图7是引出线外端的示意图。
图8是引出线外端的剖视图。
图9是引出线外端的部件分解图。
图10是固定轴和引出线的配合示意图之一。
图11是固定轴和引出线的配合示意图之二。
图12是轮辋和端盖一的示意图。
图13是图12的A处放大图。
图14是磁钢片的安装示意图之一。
图15是磁钢片的安装示意图之二。
图16是实施例2的轮辋的示意图。
图17是实施例3的轮辋的示意图。
图18是实施例4的轮辋的结构示意图。
图19是实施例4的轮辋的受力状态示意图。
图20是实施例5的轮辋、端盖一和端盖二的配合示意图之一。
图21是实施例5的轮辋、端盖一和端盖二的配合示意图之二。
图中标号所表示的含义：
10-轮辋；20-固定轴；30-引出线；40-端盖一；50-连接条；61-油封一；62-油封二；
71-轴承一；72-轴承二；80-磁钢片；90-端盖二；
21-穿线孔；22-斜向段；221-台阶部；222-内螺纹部；
301-线芯；302-防护弹簧；303-通孔；304-橡胶套体二；305-铜套；306-螺母套；307-
外皮套；308-通气管；309-阀构件；
41-内盘座；42-端盖主体；
411-基座；412-刹车环一；414-内环部一；413-条形加强筋；415-内环部一；421-端盖
环面；422-环形加强筋；423-圆环部；424-法兰部一；425-内螺部一；426-刹车环二；427-定位台阶；428-凹槽部；429-抵靠环面；430-折弯部二；431-焊接部三；432-端盖抵靠部；441-刹车环三；442-基座二；443-嵌入块；444-安装孔；445-卡槽；446-限位台阶；
46-阀构件二；
491-挡环部；492-圆弧段；493-螺栓部；494-定位折边；495-螺母；496-内螺部二；501-
焊接部一；
901-法兰部二；902-螺栓连接构件；
101-内凹槽；102-焊接部二；103-折弯部一；110-拐角；111-内凹槽的底壁；113-内凹
槽的侧壁；a-内倾角；
3000-排气接头；3000A-第一接头；3000B-第二接头；3000C-第三接头；
3011-封套；3011A-封套的第一端；3011B-封套的第二端；3011C-封套的中孔部；
3012-分路接头；3012A-第一端；3012B-第二端；3012C-第三端；3012D-分离腔室；3012C1-
排气孔；
3013-透气不透液的阀构件；3013A-中空孔；3013B-高分子膜层；
3014-箍紧环；3015-橡胶套体一；3015A-通孔。
具体实施方式
下面结合具体实施例对本发明作进一步描述：
实施例一，如图1-15，一种轮毂电机，包括轮辋10、端盖一40、端盖二90、若干个磁钢片80、固定轴20和定子组件，定子组件与引出线的线芯连接，定子组件为现有技术，本申请不展开；
轮辋10用于承载轮胎；所述轮辋呈圆环状，在轮辋的周侧向内凹陷形成内凹槽101；
端盖一40，其包括有圆盘状的端盖主体42、圆环部423和法兰部一424；所述端盖主体从所述轮辋的第一侧伸入，并从所述轮辋的第二侧伸出；所述圆环部423位于所述轮辋的中部；所述法兰部一424位于所述轮辋的第一侧；
端盖二90，其设置在所述轮辋的第一侧；所述端盖二安装在所述端盖一的法兰部一424上；所述端盖一和所述端盖二配合形成轮毂的内腔；因此，端盖一和端盖二是直接配合的，无需经过轮辋；端盖二和端盖一配合的部分均为平面(即，法兰部一和法兰部二均为平面)，上胶水密封效果较好；
若干个磁钢片80，其设置在所述端盖一40的圆环部423的内壁上；所述磁钢片80与所述圆环部423的内壁连接方式为胶水粘贴连接；所述轮辋10、端盖一40、端盖二90和磁钢片80配合形成转子组件；在轮毂内部的定子组件通电之后，转子组件的磁钢片受到磁场的作用，产生驱动力。
固定轴20，其穿过所述端盖一和端盖二；在所述端盖一和所述端盖二的中部分别设置有轴承；所述固定轴的两端穿设在所述轴承内；
定子组件，其安装在所述固定轴20上。
优选地，所述法兰部一424的外周缘贴合所述轮辋的肩部的内壁；所述法兰部一424和所述轮辋的内凹槽的侧壁之间设置有一定的距离；该距离用于法兰部一上成型有螺套部425，螺套部425是法兰部一上向轮辋内部凸出的结构；
所述法兰部一、圆环部423的外壁、轮辋内凹槽的侧壁、所述轮辋的肩部的内壁互相配合，并围成了一个过度腔104；虽然，轮毂厂家会在法兰部一的外边缘和所述轮辋的肩部的内壁之间设置一个环形的焊接部二102；但是，基于轮辋工作过程中，容易受到碰撞的工作环境，该焊接部二102存在部分脱落的风险；另外，居于加工精度的问题，焊接部二102也存在虚焊的可能性，即，外部环境中的液体可能会进入过度腔104；因此，需要预先对过度腔104内部也进行电泳镀层；因此，需要在法兰部一设置有一个通槽，该通槽导通所述过度腔和轮毂的外部环境；电泳的时候，电泳液通过该通槽进入过度腔104，在电泳完成之后，只需将轮辋吊起；该吊起的位置一般选择为气孔114，轮辋的其余部分较为光滑，不易稳定吊起；由于，所述通槽与所述轮辋上的气孔分别设置在轮辋的不同侧；所述气孔和所述通槽在轮辋的斜对角方向布局；在轮毂竖向滚动平面上，所述气孔和所述通槽的投影位置互相间隔180度。当通过气孔吊起轮辋时，通槽恰好处于对应的过度腔104的最下方，电泳液可以顺利的排出；在干燥之后，在所述通槽的槽口嵌装有橡胶塞；橡胶塞封堵所述通槽并阻止液体进入所述过度腔。
优选地，所述圆环部423的内壁上设置有辅助环，辅助环包括环体804和设置在环体上的若干和分隔条802；分隔条的长度大约在磁钢片长度的一半，辅助环的设计使得磁钢片80能够较为稳固的粘贴在圆环部423的内壁上，胶水能够充分进入每一个磁钢片之间；磁钢片是平板薄片，圆环部423的内壁是有弧度的，因此，磁钢片和圆环部423的内壁之间是存在一定的空隙的，胶水注入的时候，由于分隔条能够略微阻碍胶水的流速，是的胶水能够更好的进入磁钢片和圆环部内部之间的空隙中。相邻两个分隔条之间嵌入所述磁钢片80；所述分隔条的宽度为2～3mm；所述辅助环粘接在所述圆环部的内壁上。
所述端盖一40包括端盖主体42，端盖主体呈圆盘状；端盖主体42的外端部向所述端盖 二90的方向水平延伸形成圆环部423；
圆环部423，穿过所述轮辋10并贴合轮辋的内凹槽101的内壁；圆环部423的前端向外翻折形成法兰部一424；圆环部423的内壁粘贴有所述磁钢片80；
所述端盖主体42和圆环部423的折弯部一103与轮辋内壁焊接为一体，和/或，所述法兰部一424的外缘与轮辋10内壁焊接为一体；折弯部一103形成了焊接点；
所述端盖二90的边缘设置有法兰部二901；法兰部二901和法兰部一424通过若干个螺栓连接构件902可拆卸的连接为一体，使得端盖一40和端盖二90之间密闭配合，密封效果提升显著；法兰部一和法兰部二的宽幅也可以自行设置，供胶水密封的区域更多，密封效果更高。相比于传统的轮毂，本实施例增加了也可以进一步降低漏磁风险，提高对外的抗干扰能力。
优选地，所述端盖主体42的中部设置有内盘座41；
所述内盘座包括基座411，呈圆盘状；
基座411的外边缘向外水平翻折形成刹车环一412；
基座411的中部向外翻折形成阶梯状的内环部一414和内环部二415；
所述端盖主体42的中部向外水平翻折形成刹车环二426，刹车环二426套装于刹车环一412的外部并焊接为一体。
优选地，所述端盖主体42和内盘座41均为薄型的铁制件；所述端盖主体42和内盘座41的厚度为1.5mm～3mm。刹车环一和刹车环二叠加形成刹车座，刹车座的厚度可以满足强度需求。当端盖主体42和内盘座41均选用2mm厚度的铁板冲压成型时，刹车座的厚度可以达到4mm，从而满足强度需求；该设计充分利用了两个冲压件的组装，降本效果显著。铸造工艺费时费力，冲压工艺简单可靠，两者的成本差异巨大。
优选地，所述端盖主体42上设置有一道以上的环形加强筋422；所述内盘座41的基座411上设置有若干个放射状布置的条形加强筋413。环形加强筋422和条形加强筋413在该结构下，不仅增加了强度，而且对于特定的负荷更为有效。
申请人经过分析，轮毂的受力情况，可以区分为径向冲击力、轴向冲击力和周向的剪切力。
径向冲击力一般是轮毂行驶过程中撞击到石头或台阶导致的，该径向冲击力由轮辋负荷并分散；因此，径向冲击力对两个电机端盖的影响不大。
轴向冲击力一般是由于电动车受到侧向的撞击导致的，该撞击主要由电动车主体承受，对轮毂的影响较小，该主要由端盖主体进行负荷并分散，环形加强筋的设计使得负荷效果更好。
周向的剪切力是轮毂的主要受力，每次刹车的时候，刹车鼓均会对刹车座进行一次周向剪切力；内盘座是直接受力的部件，条形加强筋的设计使得负荷效果更好，强度更好。
优选地，所述刹车环一412的长度大于刹车环二426的长度；所述刹车环二426和端盖主体42的折弯部二430与刹车环一412的环面焊接，折弯部二430位置形成焊接点。在受到轴向冲击力的时候，该设计使得负荷效果更为集中在端盖主体上，稳定性更好。刹车环一412和刹车环二426的中部也通过点焊技术，焊接为一体，焊接点位于焊接部三431。
优选地，所述轮辋10的内凹槽101中设置有的若干个“Π”形的连接条50，连接条50两侧的折弯部三501与对应的轮辋壁面焊接。针对于轮辋厚度较薄时，例如轮辋的厚度为1.7mm时，增加连接条的设计可以防止轮辋向外张开，确保轮辋的强度。折弯部三501形成了焊接点。
优选地，所述端盖一40和端盖二90的中部设置有轴承；所述固定轴20穿设在轴承内；所述固定轴上倾斜设置有穿线孔21，轮毂电机的引出线30伸出该穿线孔21；所述穿线孔21包括斜向段22，斜向段的内壁设置有台阶部221，台阶部的外侧设置有内螺纹部222；所述引出线30包括若干条线芯301；
轮毂的固定轴20上设置有穿线孔21，轮毂电机的引出线30伸出该穿线孔21；所述引出线30包括若干条线芯301和外皮套307；外皮套307包覆在若干个线芯301的外部；所述外皮套307的外壁和穿线孔21之间密封配合；线芯301一般有六条，三条粗线对应于定子绕组的U，V，W三线，三条细线对应于霍尔传感器等；目前，也有部分车型是在轮毂内部的定子组件上，直接安装电动车的控制器，则芯线的电源线与电池连接，芯线的信号线与外部中控装置双向通信连接；
所述引出线30的外端向上延伸至电机车壳体的内部；避免直接暴露在环境中，提升防护效果；
在引出线30外端安装有排气接头3000，排气接头3000内设置有分离腔室3012D，在分离腔室3012D的周侧设置有第一接头3000A、第二接头3000B和第三接头3000C；
所述外皮套和线芯插入所述第一接头3000A，外皮套和第一接头3000A密封；
所述线芯301经过所述分离腔室3012D，再从所述第二接头3000B伸出；线芯301和第二接头3000B密封；
线芯301之间的缝隙通道导通至所述分离腔室3012D。
所述第三接头3012C上设置有透气不透液的阀构件3013，所述分离腔室3012D通过透气不透液的阀构件3013沟通外部环境。
优选地，所述排气接头3000包括分路接头3012和封套3011；所述封套3011包裹在分路接头3012的外部；第一接头3000A和封套的第一端3011A对外皮套307形成双重密封。
分路接头3012内部设置有所述分离腔室3012D，在分离腔室3012D的周侧设置有第一端3012A、第二端3012B和第三端3012C；分路接头3012也可以设置为三通形状或球形；分路接头3012为球形时，第一端3012A、第二端3012B和第三端3012C则是分布在球形表面的三个孔位；
所述外皮套的端部插入所述第一端3012A并密封；
所述线芯301插入所述第一端3012A，并经过所述分离腔室3012D，再从所述第二端3012B伸出，线芯301和第二端3012B密封；所述线芯301是圆形的，多根线芯301之间会形成缝隙通道,缝隙通道的一端导通至轮毂电机的内腔，缝隙通道的另一端导通至所述分离腔室3012D；空气和油液会在分离腔室被截留，无法再通过第二端3012B，确保不影响控制器的稳定。
穿线孔21是设置在固定轴上的，由于轮毂内部的油液量(一般是硅油，不导电)总体是较少的，不会浸没固定轴；轮毂转动时，油液会溅入芯线之间的缝隙通道；本发明不再寻求堵住芯线之间的缝隙通道，而是选择将缝隙通道作为排气通道；轮毂中的空气和少部分的油液会顺着缝隙通道向上排出，再通过分路接头3012的进行处理。
透气不透液的阀构件3013可以从市场上购买，其核心功能是通过一层高分子膜层3013将气体导通至外部环境中，但阻止液体通过，可以彻底的防止油液漏出，并阻止水汽进入。
所述引出线30的外端延伸至电动车的控制器内部；所述线芯301伸出第二端3012B之后，与控制器的线路板连接。
所述第二端3012B设置有橡胶套体一3015，橡胶套体一3015上预成型有若干个通孔3015A，通孔与线芯301一一对应；线芯301穿过对应的通孔3015A。
所述橡胶套体一3015的外部设置有箍紧环3014。箍紧环3014可以收缩橡胶套体一3015，使得橡胶套体一3015可以密封线芯301之间的缝隙通道。
所述分路接头3012的外部包裹有封套3011；封套3011同时包裹橡胶套体一3015，达到彻底密封的效果。
所述穿线孔21包括斜向段22，斜向段的内壁设置有台阶部221，台阶部的外侧设置有内螺纹部222；
橡胶套体二304，呈圆环状；橡胶套体二304套装在外皮套307的外侧，并抵靠于台阶部221；
铜套305，套装在外皮套307的外侧，并抵靠于橡胶套体二304；铜套收紧所述外皮套 307；
螺母套306，其套装在外皮套307的外部，并抵靠于铜套305；所述螺母套306旋入所述内螺纹部222，并压紧橡胶套体二304。
螺母套旋入内螺纹部的时候，会压紧橡胶套体二，橡胶套体二的前段抵靠在台阶部221上，橡胶套体二受到外力变形并压紧外皮套307，该设计是对外皮套和穿线孔21之间进行密封；在通过铜套固定外皮套307，确保引出线的稳定和密封，不会进水。螺母套和橡胶套体二，在轮毂的外部进一步固定了引出线，并提高密封性。
所述穿线孔21倾斜设置在固定轴上；所述外皮套307的外侧套装有防护弹簧302；防护弹簧的一端嵌入穿线孔21的斜向段22并固定，防护弹簧的另一端延伸至穿线孔21的外侧。穿线孔21存在毛边，会割伤外皮套，防护弹簧302的设计可以隔离穿线孔的飞边；防护弹簧302是直接卡入穿线孔，用较大的力，可以拉出来。本申请所述的铁，是指钢铁。本申请中涉及和油液直接接触的橡胶类零部件，一般选用含氟的橡胶制作，普通橡胶长时间接触油液，会膨涨，龟裂失去弹性，甚至解体。
实施例2，本实施例与实施例1基本相同，其不同之处在于，所述轮辋的内凹槽101的形状进行了改进。
轮辋的内凹槽的侧壁113与内凹槽的底壁111之间的夹角b小于90度，夹角b的角度可以设置为80度～90度之间(不包含90度)，本实施例为85度。
因此，内凹槽的侧壁113是轮辋中部倾斜了一定的内倾角a。该设计使得轮辋受到径向冲击力的时候，轮辋是趋于向内挤压的。由于，轮胎的存在，轮辋向内挤压的时候收到阻碍，使得抵抗径向冲击力的能力变强。
优选地，所述内凹槽101中设置有的若干个连接条50，连接条50两侧的折弯部501与对应的轮辋壁面焊接。结合连接条50的设计，可以双重保障轮辋的稳定性，既不易向内倾斜变形，也不易向外倾斜变形。连接条50也是冲压成型的铁制件，其两端的弯折部具有一定的弹性和韧性；虽然内凹槽的侧壁113是向内倾斜的，但该倾斜角度总体是较小的，因此，将连接条50装入内凹槽的时候，可以直接通过外力挤压连接条50的两侧，使其变形即可进入。再将连接条50两侧的弯折部501与轮辋侧壁焊接，形成焊接部。针对于轮辋厚度较薄时，例如轮辋的厚度为1.7mm时，增加连接条的设计可以防止轮辋向外张开，确保轮辋的强度。折弯部501形成了焊接点。优选地，所述连接条50呈形。
本实施中，端盖40上安装的是鼓刹环424。
所述内凹槽的侧壁113向轮辋中部倾斜；所述内凹槽的侧壁113与内凹槽的底壁111之 间的夹角b≥80度，且夹角b<90度，不包含90度。本申请中的内倾结构是指内凹槽的侧壁113向内倾斜。
轮毂行驶过程中撞击到石头或台阶会产生径向冲击力，该径向冲击力由轮辋负荷并分散；夹角b的设计使得轮辋受到径向冲击力的时候，轮辋是趋于向内挤压的。由于，轮胎的存在，轮辋向内挤压的时候收到阻碍，使得抵抗径向冲击力的能力变强。
优选地，所述轮辋包括一个金属板材，所述金属板材的宽度方向的两侧向上翻折形成第一折弯部104a，左右两个所述第一折弯部104a之间的金属板材形成所述内凹槽的底壁111，两个所述第一折弯部形成所述内凹槽的侧壁101；所述第一折弯部104a的折弯角度大于90度；
所述第一折弯部104a的上侧向外部翻折形成第二折弯部105a；
所述第二折弯部105a的外侧再向上翻折形成第三折弯部106a；
所述第三折弯部106a的外端再向外侧或向内侧折弯形成所述轮缘103a；
所述金属板材沿着长度方向弯曲成圆环状并首尾焊接形成所述轮辋10；
所述轮辋的厚度为1.5mm～2mm；轮辋的厚度可以选用1.6mm或1.7mm或1.8mm或1.9mm。轮辋的厚度越薄，生产成本越低，抗冲击力越弱。
优选地，所述夹角b的角度为81度或82度或83度或84度或85度或86度或87度或88度或89度。
实施例3，本实施例与实施例1基本相同，其不同之处在于，如图17所示，本实施例的局部结构可以稍加变形，形成另一种本实施例与实施例一基本相同，其不同之处在于，所述端盖主体42的边缘处向外扩展形成挡环部491，挡环部491大于轮辋内凹槽101的内孔径；挡环部491和圆环部423之间通过圆弧段492过渡，该圆弧段492贴合轮辋内凹槽101的拐角110。挡环部和法兰部一可以配合夹紧轮辋，使得端盖一和轮辋的配合更为紧密，即便焊接不均匀或部分脱落也不会出现问题，延长使用寿命。挡环部是在端盖一装入轮辋之后，再通过旋压设备伸入端盖一的内部，对端盖主体42的边缘进行旋压，使得端盖主体42的边缘向外扩展一定的距离，从而形成挡环部491。
法兰部一424上成型有向外延伸的螺栓部493。
实施例4，本实施例与实施例1基本相同，其不同之处在于，轮辋的内凹槽101的两侧设置有胎圈座102a；胎圈座102a的两侧向上延伸形成轮缘103a，所述轮缘103a设置有外翻边部1031；所述轮缘103a设置有内翻边部1032；所述内凹槽101的底壁和所述内凹槽101 的侧壁之间设置有过度段一1001，所述过度段一1001的厚度小于所述底壁111的厚度，所述过度段一1001的厚度小于所述侧壁的厚度；所述过度段一1001位于所述侧壁和底壁之间的折弯处。该设计使得第一折弯部加工过程中，更容易定型。
优选地，所述第一折弯部向外翻折时，先向下翻折形成过渡段二1002，再向外翻折形成所述第二折弯部106a；所述过渡段二1002向下并向外延伸；所述第二折弯部106a向外并向上延伸。该设计使得轮辋收到冲击力的时候，会在过度段二出释放一定的冲击力，再将冲击力延伸到过度段二；实际上，如图5所述，在收到冲击力的时候，第一转角A，第二转角B，第三转角C，第四转角D是依次承担了一定的冲击力，使得第一折弯部收到的冲击力降低。
实施例5，本实施例与实施例1基本相同，其不同之处在于，如图20-21所述，所述端盖一40包括插入环423b和屏蔽环423a；所述插入环423b和屏蔽环423a部分叠合；所述插入环423b、屏蔽环423a和轮辋10内壁三者紧密贴合；所述屏蔽环423a、插入环423b以及轮辋10内壁之间的配合关系为：
所述屏蔽环423a外侧壁与轮辋10内壁之间形成插入腔，所述插入环423b插入该插入腔内；所述插入环和轮辋10内壁焊接为一体；屏蔽环423a的内侧壁设置有若干磁钢片80；
或，所述屏蔽环423a、插入环423b以及轮辋10内壁之间的配合关系为：所述屏蔽环423a外侧壁与轮辋10内壁之间紧贴配合；所述插入环423b的外侧与屏蔽环423a的内侧紧贴，插入环423b的内侧壁设置有若干磁钢片80。
上述实施例仅为本发明的较佳实施例，并非依此限制本发明的保护范围，故：凡依本发明的结构、形状、原理所做的等效变化，均应涵盖于本发明的保护范围之内。

Claims (10)

  1. 一种轮毂电机，其特征在于，轮辋(10)，其用于承载轮胎；所述轮辋呈圆环状，在轮辋的周侧向内凹陷形成内凹槽(101)；
    端盖一(40)，其包括有圆盘状的端盖主体(42)、圆环部(423)和法兰部一(424)；所述端盖主体从所述轮辋的第一侧伸入，并从所述轮辋的第二侧伸出；所述圆环部(423)位于所述轮辋的中部；所述法兰部一(424)位于所述轮辋的第一侧；
    端盖二(90)，其设置在所述轮辋的第一侧；所述端盖二安装在所述端盖一的法兰部一(424)上；所述端盖一和所述端盖二配合形成轮毂的内腔；
    若干个磁钢片(80)，其设置在所述端盖一(40)的圆环部(423)的内壁上；所述轮辋(10)、端盖一(40)、端盖二(90)和磁钢片(80)配合形成转子组件；
    固定轴(20)，其穿过所述端盖一和端盖二；在所述端盖一和所述端盖二的中部分别设置有轴承；所述固定轴的两端穿设在所述轴承内；
    定子组件，其安装在所述固定轴(20)上。
  2. 根据权利要求1所述的一种轮毂电机，其特征在于，所述内凹槽(101)的两侧设置有胎圈座(102a)；
    胎圈座(102a)的两侧向上延伸形成轮缘(103a)，所述轮缘(103a)设置有外翻边部(1031a)或内翻边部(1032a)；
    所述内凹槽的侧壁(113)向轮辋中部倾斜；所述内凹槽的侧壁(113)与内凹槽的底壁(111)之间的夹角b≥80度，且夹角b<90度。
  3. 根据权利要求2所述的一种轮毂电机，其特征在于，所述轮辋包括一个金属板材，
    所述金属板材的宽度方向的两侧向上翻折形成第一折弯部(104a)，左右 两个所述第一折弯部(104a)之间的金属板材形成所述内凹槽的底壁(111)，两个所述第一折弯部形成所述内凹槽的侧壁(101)；所述第一折弯部(104)的折弯角度大于90度；
    所述第一折弯部(104a)的上侧向外部翻折形成第二折弯部(105a)；
    所述第二折弯部(105a)的外侧再向上翻折形成第三折弯部(106a)；
    所述第三折弯部(106a)的外端再向外侧或向内侧折弯形成所述轮缘(103a)；
    所述金属板材沿着长度方向弯曲成圆环状并首尾焊接形成所述轮辋(10)；
    所述轮辋的厚度为1.5mm～2mm。
  4. 根据权利要求2所述的一种轮毂电机，其特征在于，所述内凹槽(101)的底壁和所述内凹槽(101)的侧壁之间设置有过度段一(1001)，所述过度段一(1001)的厚度小于所述底壁(111)的厚度，所述过度段一(1001)的厚度小于所述侧壁的厚度；所述过度段一(1001)位于所述侧壁和底壁之间的折弯处；所述第一折弯部向外翻折时，先向下翻折形成过渡段二(1002)，再向外翻折形成所述第二折弯部(106a)；所述过渡段二(1002)向下并向外延伸；所述第二折弯部(106a)向外并向上延伸。
  5. 根据权利要求1所述的一种轮毂电机，其特征在于，所述端盖主体(42)的中部设置有内盘座(41)；
    所述内盘座包括
    基座(411)，呈圆盘状；
    基座(411)的外边缘向外水平翻折形成刹车环一(412)；
    基座(411)的中部向外翻折形成阶梯状的内环部一(414)和内环部二(415)；
    所述端盖主体(42)的中部向外水平翻折形成刹车环二(426)，刹车环二 (426)套装于刹车环一(412)的外部并焊接为一体。
  6. 根据权利要求5所述的一种轮毂电机，其特征在于，所述端盖主体(42)的外端部向所述端盖二(90)的方向水平延伸形成圆环部(423)；
    圆环部(423)，穿过所述轮辋(10)并贴合轮辋的内凹槽(101)的内壁；圆环部(423)的前端向外翻折形成法兰部一(424)；圆环部(423)的内壁粘贴有所述磁钢片(80)；
    所述端盖主体(42)和圆环部(423)的折弯部一(103)与轮辋内壁焊接为一体，和/或，所述法兰部一(424)的外缘与轮辋(10)内壁焊接为一体；
    所述端盖二(90)的边缘设置有法兰部二(901)；法兰部二(901)和法兰部一(424)通过若干个螺栓连接构件(902)可拆卸的连接为一体，使得端盖一(40)和端盖二(90)之间密闭配合。
  7. 根据权利要求6所述的一种轮毂电机，其特征在于，所述端盖主体(42)的边缘处向外扩展形成挡环部(491)，挡环部(491)大于轮辋内凹槽(101)的内孔径；挡环部(491)和圆环部(423)之间通过圆弧段(492)过渡，该圆弧段(492)贴合轮辋内凹槽(101)的拐角(110)。
  8. 根据权利要求7所述的一种轮毂电机，其特征在于：所述端盖主体(42)上设置有一道以上的环形加强筋(422)；所述内盘座(41)的基座(411)上设置有若干个放射状布置的条形加强筋(413)；刹车环一(412)的长度大于刹车环二(426)的长度；刹车环二(426)和端盖主体(42)的折弯部二(430)与刹车环一(412)的环面焊接。
  9. 根据权利要求1所述的一种轮毂电机，其特征在于：所述轮辋(10)的内凹槽(101)中设置有的若干个“Π”形的连接条(50)，连接条(50)两侧的折弯部三(501)与对应的轮辋壁面焊接。
  10. 根据权利要求1-9任一项所述的一种轮毂电机，其特征在于：所述端盖一(40)包括插入环(423b)和屏蔽环(423a)；所述插入环(423b)和屏蔽环(423a)部分叠合；
    所述插入环(423b)、屏蔽环(423a)和轮辋(10)内壁三者紧密贴合；所述屏蔽环(423a)、插入环(423b)以及轮辋(10)内壁之间的配合关系为：
    所述屏蔽环(423a)外侧壁与轮辋(10)内壁之间形成插入腔，所述插入环(423b)插入该插入腔内；所述插入环和轮辋(10)内壁焊接为一体；屏蔽环(423a)的内侧壁设置有若干磁钢片；
    或，所述屏蔽环(423a)、插入环(423b)以及轮辋(10)内壁之间的配合关系为：所述屏蔽环(423a)外侧壁与轮辋(10)内壁之间紧贴配合；所述插入环(423b)的外侧与屏蔽环(423a)的内侧紧贴，插入环(423b)的内侧壁设置有若干磁钢片。
PCT/CN2023/093112 2022-05-09 2023-05-09 一种轮毂电机 WO2023217157A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023600095U JP3246889U (ja) 2022-05-09 2023-05-09 ハブモータ

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202210499876 2022-05-09
CN202210499876.X 2022-05-09
CN202211260430 2022-10-14
CN202211260430.8 2022-10-14

Publications (1)

Publication Number Publication Date
WO2023217157A1 true WO2023217157A1 (zh) 2023-11-16

Family

ID=88591045

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/093112 WO2023217157A1 (zh) 2022-05-09 2023-05-09 一种轮毂电机

Country Status (3)

Country Link
JP (1) JP3246889U (zh)
CN (1) CN219980550U (zh)
WO (1) WO2023217157A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH218719A (de) * 1939-10-13 1941-12-31 Scintilla Ag Aggregat bei Brennkraftmaschinen, mit einer bald als Anlassmotor, bald als Stromerzeuger arbeitenden elektrischen Maschine und einem mit dieser zusammengebauten Getriebe.
CN208316424U (zh) * 2018-06-06 2019-01-01 绍兴上虞舜古兰机电有限公司 电动车轮毂电机
CN211281367U (zh) * 2019-07-19 2020-08-18 博世（宁波）轻型电动车电机有限公司 轮毂电机和电动车
CN216252289U (zh) * 2021-10-26 2022-04-08 浙江绿源电动车有限公司 一种带磁钢定位环结构的轮毂电机
CN218287709U (zh) * 2022-04-21 2023-01-13 河北信质科技有限公司 一种鼓刹端盖及电动车轮毂
CN218449680U (zh) * 2022-04-28 2023-02-03 长鹰信质科技股份有限公司 一种轮毂的排气结构及电动车轮毂

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH218719A (de) * 1939-10-13 1941-12-31 Scintilla Ag Aggregat bei Brennkraftmaschinen, mit einer bald als Anlassmotor, bald als Stromerzeuger arbeitenden elektrischen Maschine und einem mit dieser zusammengebauten Getriebe.
CN208316424U (zh) * 2018-06-06 2019-01-01 绍兴上虞舜古兰机电有限公司 电动车轮毂电机
CN211281367U (zh) * 2019-07-19 2020-08-18 博世（宁波）轻型电动车电机有限公司 轮毂电机和电动车
CN216252289U (zh) * 2021-10-26 2022-04-08 浙江绿源电动车有限公司 一种带磁钢定位环结构的轮毂电机
CN218287709U (zh) * 2022-04-21 2023-01-13 河北信质科技有限公司 一种鼓刹端盖及电动车轮毂
CN218449680U (zh) * 2022-04-28 2023-02-03 长鹰信质科技股份有限公司 一种轮毂的排气结构及电动车轮毂

Also Published As

Publication number Publication date
JP3246889U (ja) 2024-06-04
CN219980550U (zh) 2023-11-07

Similar Documents

Publication Publication Date Title
US20170110933A1 (en) Stator assembly for wheel motor and stub axle support therefor
US5593279A (en) Suction connector for pump
JP6212546B2 (ja) 排気ガスターボチャージャ
US20160001593A1 (en) Rim Assembly
JP2018511517A (ja) 自動車両および制動に用いる電気モータアセンブリ
CN103481885A (zh) 具有旋转定位壳体的气压制动执行器室
WO2023217157A1 (zh) 一种轮毂电机
TWI747255B (zh) 輪轂式馬達單元及電動車輛
US6884037B2 (en) Impeller assembly
CN218287709U (zh) 一种鼓刹端盖及电动车轮毂
TWI748388B (zh) 輪轂式馬達單元及電動車輛
CN114361689B (zh) 动力电池顶盖结构
CN213565248U (zh) 一种电动轮毂结构
CN209604274U (zh) 一种汽车电子水泵
CN209875495U (zh) 一种管线用pcl压缩机
CN205714809U (zh) 设有防锈套的旋涡泵
JPH0650283A (ja) 全周流型ポンプ
JP4789442B2 (ja) 電池封口体および電池
CN214138102U (zh) 车轮和车辆
CN212258623U (zh) 一种电机前端盖外部的加强筋结构
CN218717455U (zh) 一种泵壳、水泵密封结构及防止密封件过度压缩的水泵
CN216131293U (zh) 一种单活塞cbs制动卡钳
CN211183605U (zh) 一种具有绕组防护的轮毂电机
CN220798802U (zh) 电机控制器组件、电机及车辆
JP2013185563A (ja) 過給機用のコンプレッサハウジング

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2023600095

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23802926

Country of ref document: EP

Kind code of ref document: A1