CN211239582U - High-speed direct-current brushless motor for automobile brake system - Google Patents
High-speed direct-current brushless motor for automobile brake system Download PDFInfo
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- CN211239582U CN211239582U CN201922251214.7U CN201922251214U CN211239582U CN 211239582 U CN211239582 U CN 211239582U CN 201922251214 U CN201922251214 U CN 201922251214U CN 211239582 U CN211239582 U CN 211239582U
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Abstract
The utility model relates to a high-speed direct current brushless motor for automobile brake system, including motor housing, stator module and rotor subassembly, motor housing's internally mounted has stator module, stator module's inside coaxial rotation is provided with the rotor subassembly, the rotor subassembly is including the rotor core that is the tube-shape and the even magnet steel that sets up in the rotor core outside, the one end of rotor core is inserted in motor housing's one end and is linked to each other with motor housing through the bearing, the inside coaxial arrangement of rotor core has the ball screw pair that links to each other with rotor core one end is fixed, PTS magnetic ring subassembly is installed to rotor core's other end axial, screw-nut on the ball screw pair links to each other with helping hand jar piston. The utility model discloses compact structure, it is ingenious with the combination of ball pair, install fast portably with braking system valve physical stamina, the functioning speed is fast, and is stable moreover.
Description
Technical Field
The utility model relates to an automobile brake system component field especially relates to an automobile brake system uses high-speed direct current brushless motor.
Background
With the development of social economy and the progress of science and technology, the application technology of the direct current brushless motor control system is more and more perfect and mature due to the fact that the permanent magnet material, the power electronic technology, the sensor technology and the unprocessed technology are in leap development, and the direct current brushless motor control system has a series of advantages of simple structure, reliable operation, small operation sound, long service life, convenient maintenance and the like of an alternating current motor, and also has a plurality of advantages of high operation efficiency, good speed regulation performance and the like of the direct current motor, so that the direct current brushless motor control system is widely applied to the fields of industrial production, instruments and meters, computer peripheral equipment, advanced household appliances and the like.
In the brake booster system of the automobile, a motor is needed, electric energy is converted into hydraulic pressure through high-speed operation of the motor, specifically, the ball screw pair is driven through high-speed rotation of the motor, the rotation of a screw is converted into linear motion of a nut, the nut of the ball screw pair pushes hydraulic oil of a booster cylinder through a piston shaft of the booster cylinder, and the hydraulic oil is pumped to four caliper wheel cylinders, so that the brake function of the brake booster system is realized.
Therefore, the brushless direct current motor can also be applied to a brake power assisting system of an automobile, but the existing automobile brake power assisting system requires a compact structure, and how to compactly and efficiently arrange the brushless direct current motor is a difficult problem.
Disclosure of Invention
The utility model aims to solve the technical problem that a high-speed direct current brushless motor is used to car braking system is provided, compact structure, it is ingenious with vice combination of ball, install fast portably with braking system valve physical stamina, the functioning speed is fast, and is stable moreover.
The utility model provides a technical scheme that its technical problem adopted is: the high-speed direct current brushless motor for the automobile brake system comprises a motor shell, a stator assembly and a rotor assembly, wherein the stator assembly is installed in the motor shell, and the rotor assembly is coaxially and rotatably arranged in the stator assembly;
the rotor subassembly including the rotor core that is the tube-shape and the magnet steel of even setting in the rotor core outside, the one end of rotor core insert in motor housing's one end and link to each other with motor housing through the bearing, the inside coaxial arrangement of rotor core have with rotor core one end fixed continuous ball screw pair, rotor core's other end axial install PTS magnetic ring subassembly, ball screw pair on screw-nut and helping hand jar piston shaft axial link to each other, stator module include stator core group, around connect at the inside stator winding of stator core group and with the terminal subassembly of stator winding switch-on, the terminal subassembly on be provided with the Pin contact Pin that a plurality of inserted in the braking system valve body.
The motor shell mainly has the functions of fixing and supporting the stator core, has enough mechanical strength and rigidity, can bear various acting forces in the running or transportation process of the motor, and is connected with the corresponding groove on the brake system valve body through a plurality of screws.
The bearing and the rotor core between the position be provided with motor housing riveted retaining ring, the bearing realizes and drives lead screw moving key, the bearing is impressed the back, with the laminating of the step face of the inside one end of motor housing, guarantees with the axiality between the motor housing, the retaining ring adopts four-point riveting's mode to install in motor housing, has guaranteed that not hard up condition can not appear in the retaining ring.
In order to realize the axial fixation of the screw rod, the outer side end of the bearing is provided with a fixing bolt gasket in the middle, the center of the fixing bolt gasket penetrates through a screw rod fixing bolt connected with one end of the screw rod of the ball screw pair, the screw rod is in interference connection with the rotor core, and the screw rod fixing bolt can be connected with the screw rod to play a role in preventing looseness.
The motor housing install the motor tail-hood on the terminal surface of the one end of bearing, the motor tail-hood include discoid body, this discoid body edge is provided with round turn-ups portion, the end cover inslot of turn-ups portion embedding motor housing tip, the inside wall of discoid body and motor housing between install the tail-hood sealing washer, pack the tail-hood sealing washer into in the corresponding seal groove of motor housing's rear end, it is fixed to impress the motor tail-hood into motor housing's end cover inslot back-off again, because the motor tail-hood has covered the tail-hood sealing washer completely, so has fine sealed effect.
Motor housing and the continuous one end of braking system valve body be provided with and be square flange, one side of flange and motor housing's lateral wall between be provided with a plurality of strengthening rib, the strengthening rib is for intensity and rigidity between increase motor and the valve body, the constant head tank on square flange and the valve body is corresponding, designs into the positive quadrangle for the convenience of the quick discernment installation direction.
The rotor assembly is mainly used for establishing an enough magnetic field in an air gap of the motor and supporting a ball screw pair to realize the key of the function of the ball screw pair, in order to realize the free rotation of a rotor core and the connection with a screw rod, a cylindrical shaft is axially arranged at one end of the rotor core, a screw rod connecting through hole is arranged in the cylindrical shaft, a bearing is sleeved outside the cylindrical shaft, a magnetic steel mounting plane is arranged on the outer side wall of the rotor core side by side, magnetic steel is used as a part of a magnetic circuit and is supplied with a variable frequency power supply to a wire group by a controller to generate the magnetic field to drive the motor to operate, and the magnetic steel is designed into a complete circle consisting of a plurality of magnetic steels, so that the air; the outer surface of each single magnetic steel is designed in an arc shape, so that the cogging torque is reduced, the shape of an air gap magnetic field is improved, the bottom of each single magnetic steel is designed in a plane shape and is matched with the magnetic steel mounting plane of the rotor core, the processing and the assembly are convenient, and the adjacent magnetic steel mounting planes are separated by separating convex strips to prevent the magnetic steels from being dislocated; the inner side wall of the screw rod connecting through hole is provided with an anti-rotation plane matched with the screw rod, so that the relative rotation between the screw rod and the rotor core can be effectively prevented.
The rotor comprises a rotor core and is characterized in that magnetic steel protective sleeves wrapping magnetic steel are coaxially arranged on the outer sides of two ends of the rotor core, the magnetic steel protective sleeves are cylindrical thin-wall parts, the inner side walls of the magnetic steel protective sleeves are fixing surfaces in contact with the magnetic steel, conical surfaces are arranged on the inner sides of the opening ends of the magnetic steel protective sleeves, the magnetic steel is attached to corresponding positions of the rotor core through fixing glue, the two end surfaces of the outer ring are respectively sleeved with one magnetic steel protective sleeve, the magnetic steel protective sleeves are welded after being pressed in place and used for fixing the magnetic steel, the magnetic steel. The fixed surface is attached to the magnetic steel, and the conical surface is designed to be tapered so as to be convenient for press mounting.
Preferably, the stator windings are part of the electrical circuit of the machine, the main function of which is to pass current, generating an induced potential to effect conversion of electromechanical energy. The principle is as follows: when the rotor is pushed (rotated) by external force, a rotating magnetic field is provided, the stationary coil surrounding the magnetic field is continuously cut, and current is generated on the stationary coil, thereby realizing the conversion of mechanical energy and electric energy, the stator iron core group is formed by overlapping a plurality of annular iron core sheet layers, the iron core sheet is made of silicon steel sheets with the thickness of 0.35mm by overlapping, so that the sheets are mutually insulated, so as to reduce the core loss caused by the rotating magnetic field in the stator core, each core sheet layer is formed by splicing a plurality of T-shaped iron core sheets side by side, the upper side of the iron core plate is provided with a plurality of positioning bosses, the lower end surface is provided with positioning grooves corresponding to the positioning bosses, the two transverse ends of the iron core sheet are respectively provided with a corresponding side lug boss and a corresponding side groove, the iron core plates with a large number can be quickly assembled through the positioning bosses, the side bosses and the side grooves.
For fixed stator iron core group and stator winding, the axial both ends of stator iron core group all be provided with the bobbin group, the bobbin group is the support that props stator winding, and is the connecting device who connects between the fixed stator iron core simultaneously again, bobbin group be the annular by the combination side by side of a plurality of bobbin, the upper end of bobbin be provided with about link up around the groove, the lower part of this bobbin is two hollow frid of arranging side by side, the hollow frid that leans on the adjacent bobbin concatenation together and insert the stator iron core group on form the hollow inslot between the adjacent iron core piece, stator winding is around on every bobbin, also realizes simultaneously on stator iron core group making stator iron core group, stator winding and bobbin group have constituteed a firm main part after adopting this kind of structure.
Preferably, the terminal assembly mainly functions in transferring electrical signals and comprises a Pin needle fixing seat, a first connecting sheet, a second connecting sheet, a third connecting sheet and a fourth connecting sheet, wherein the first connecting sheet, the second connecting sheet, the third connecting sheet and the fourth connecting sheet are spliced into a ring shape corresponding to the stator winding, the fourth connecting sheet is connected with the stator winding, one end of each of the first connecting sheet, the second connecting sheet and the third connecting sheet is provided with a Pin inserting hole, the Pin inserting holes in the first connecting sheet, the second connecting sheet and the third connecting sheet are arranged side by side and correspond to the Pin inserting holes in the Pin needle fixing seat one by one, a centering ring is sleeved between the upper end of the Pin needle fixing seat and the corresponding Pin inserting needle, and the first connecting sheet, the second connecting sheet, the third connecting sheet and the fourth connecting sheet are connected into a whole, the conducting between the Pin contact Pin and the stator winding is realized, the centering ring is an elastic rubber piece, the main function is to protect the connection position between the Pin needle fixing seat and the Pin contact Pin, and the circle center of the Pin needle can be determined.
Has the advantages that: the utility model relates to a high-speed DC brushless motor is used to car braking system, compact structure, it is ingenious with the combination of ball pair, install with braking system valve physical stamina is simple and convenient fast, the functioning speed is fast, waterproof nature is good.
Drawings
FIG. 1 is an exploded view of the motor of the present invention;
FIG. 2 is a front view and a half-section structure view of the whole motor installation of the present invention;
FIG. 3 is an exploded view of the motor structure of the present invention;
FIG. 4 is a front view of a half-section structure of the motor structure of the present invention;
fig. 5 is a side view structural diagram of the motor case of the present invention;
FIG. 6 is a front view of a half-section structure of the motor housing of the present invention;
fig. 7 is a side view structural diagram of the motor case of the present invention;
fig. 8 is a structural view of the motor tail cover of the present invention;
figure 9 is a block diagram of a PTS magnetic ring assembly of the present invention;
fig. 10 is a perspective exploded view of the rotor assembly of the present invention;
fig. 11 is a front view half section structure view of the rotor assembly of the present invention;
FIG. 12 is a structural view of the magnetic steel protective sheath of the present invention;
fig. 13 is a side view structural view of the rotor core of the present invention;
fig. 14 is a front view half-section structural view of the rotor core of the present invention;
fig. 15 is a three-dimensional exploded view of the stator assembly of the present invention;
fig. 16 is a three-dimensional exploded structural view of a terminal assembly according to the present invention;
FIG. 17 is an exploded view of the four connecting plates of the present invention;
fig. 18 is an assembly structural view of a terminal assembly of the present invention;
fig. 19 is an assembly structure view of the bobbin set of the present invention;
fig. 20 is an assembly structure view of the stator winding of the present invention;
fig. 21 is a three-dimensional structure diagram of the iron core sheet of the present invention.
The figure is as follows: 210. a rotor assembly; 211. a magnetic steel protective sleeve; 211-2, conical surface; 211-4, a fixed surface; 212. magnetic steel; 213. a rotor core; 213-1, a magnetic steel mounting plane; 213-2, separating convex strips; 213-10, cylindrical shaft; 213-11, a screw rod connecting through hole; 220. a ball screw pair; 221. a screw rod fixing bolt; 222. fixing the bolt gasket; 240. a stator assembly; 241. a Pin contact Pin; 242. a centering ring; 243. a terminal assembly; 243-1, Pin needle fixing seat; 243-2, first connecting piece; 243-3, a second connecting sheet; 243-4, a third connecting sheet; 243-5, a fourth connecting sheet; 245. a stator winding; 246. a bobbin set; 246-1, a wire wrapping groove; 246-2, a bobbin; 246-4, hollow groove plate; 247. a stator core; 247-1, positioning the boss; 247-3, side grooves; 247-4, side bosses, 250, and bearing retainers; 260. a bearing; 270. a motor housing; 270-2, flange; 270-7, end cover grooves; 270-18 parts of reinforcing ribs; 280. a tail cap seal ring; 290. a motor tail cover; 290-1, a disc-shaped body; 290-2, a flanging part; 350. a brake system valve body; 360. a PTS magnet ring assembly; 420. a cylinder piston shaft.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
As shown in fig. 1 to 21, an embodiment of the present invention relates to a high-speed dc brushless motor for an automobile braking system, including a motor housing 270, a stator assembly 240 and a rotor assembly 210, wherein the stator assembly 240 is installed inside the motor housing 270, and the rotor assembly 210 is coaxially disposed inside the stator assembly 240;
The motor housing 270 serves to fix and support the stator core 247, has sufficient mechanical strength and rigidity to withstand various forces during operation or transportation of the motor, and is coupled to the corresponding recess of the brake valve body 350 via a plurality of screws, and the motor housing 270 is coupled to the corresponding recess of the brake valve body 350 via a plurality of screws.
In order to realize the axial fixation of the screw rod, a fixing bolt gasket 222 is arranged in the middle of the outer side end of the bearing 260, a screw rod fixing bolt 221 connected with one end of the screw rod of the ball screw pair 220 penetrates through the center of the fixing bolt gasket 222, the screw rod is in interference connection with the rotor core 213, and the screw rod fixing bolt 221 can be connected with the screw rod to play a role in preventing looseness.
The end face of the end of the motor housing 270, at which the bearing 260 is mounted, is provided with a motor tail cover 290, the motor tail cover 290 comprises a disc-shaped body 290-1, the edge of the disc-shaped body 290-1 is provided with a circle of flanging part 290-2, the flanging part 290-2 is embedded into an end cover groove 270-7 at the end of the motor housing 270, a tail cover sealing ring 280 is mounted between the inner side wall of the disc-shaped body 290-1 and the motor housing 270, the tail cover sealing ring 280 is mounted into a corresponding sealing groove at the rear end of the motor housing 270, the motor tail cover 290 is pressed into the end cover groove 270-7 of the motor housing 270 and is fixed in an inverted manner, and the motor tail cover 290 completely covers the tail cover sealing ring 280, so that the motor tail cover 290 has a good sealing.
The square flange 270-2 is arranged at one end, connected with the brake system valve body 350, of the motor shell 270, a plurality of reinforcing ribs 270-18 are arranged between one side of the flange 270-2 and the side wall of the motor shell 270, the reinforcing ribs 270-18 are used for increasing strength and rigidity between the motor and the valve body 350, the square flange 270-2 corresponds to the positioning grooves in the valve body 350, and the square flange 270-2 is designed to be a regular quadrangle to facilitate rapid identification of the installation direction.
The rotor assembly 210 is mainly used for establishing an enough magnetic field in an air gap of the motor and supporting the ball screw assembly 220 to realize the key of the function, in order to realize the free rotation of the rotor core 213 and the connection with a screw rod, one end of the rotor core 213 is axially provided with a cylindrical shaft 213-10, a screw rod connecting through hole 213-11 is arranged in the cylindrical shaft 213-10, the bearing 260 is sleeved outside the cylindrical shaft 213-10, the outer side wall of the rotor core 213 is provided with a magnetic steel mounting plane 213-1 side by side, the magnetic steel 212 is used as a part of a magnetic circuit, a controller supplies a variable frequency power supply to a wire group to generate a magnetic field to drive the motor to operate, the magnetic steel is designed into a plurality of magnetic steels to form a complete circle, the aim is that the air gap is uniform and the magnetic; the outer surface of each single magnetic steel is designed in an arc shape, so that the cogging torque is reduced, the shape of an air gap magnetic field is improved, the bottom of each single magnetic steel is designed in a plane shape and is matched with a magnetic steel mounting plane 213-1 of a rotor core 213, the processing and the assembly are convenient, and the adjacent magnetic steel mounting planes 213-1 are separated by a separation convex strip 213-2, so that the magnetic steels are prevented from being dislocated; the inner side wall of the screw rod connecting through hole 213-11 is provided with an anti-rotation plane 213-4 matched with the screw rod, so that the relative rotation between the screw rod and the rotor core 213 can be effectively prevented.
The magnetic steel protective sleeve 211 wrapping the magnetic steel 212 is coaxially arranged on the outer sides of two ends of the rotor core 213, the magnetic steel protective sleeve 211 is a cylindrical thin-walled part, the inner side wall of the magnetic steel protective sleeve 211 is a fixing surface 211-4 in contact with the magnetic steel 212, the inner side of the opening end of the magnetic steel protective sleeve 211 is provided with a conical surface 211-2, the magnetic steel 212 is attached to the corresponding position of the rotor core 213 through fixing glue, the two end surfaces of the outer ring are respectively sleeved with one magnetic steel protective sleeve 211, and the magnetic steel protective sleeves are welded after being pressed in place and used for fixing the magnetic steel 212, and the magnetic steel protective sleeves 211. The fixed surface 211-4 is attached to the magnetic steel 212, and the conical surface 211-2 is designed to be conical so as to facilitate press mounting.
Preferably, the stator windings 245 are circuit portions of the motor, which primarily function to pass current and generate induced electrical potential to effect conversion of electromechanical energy. The principle is as follows: when the rotor is pushed (rotated) by external force, a rotating magnetic field is provided, a stationary coil surrounding the magnetic field is continuously cut, and current is generated on the stationary coil, so that conversion of mechanical energy and electric energy is realized, the stator iron core group 247 is formed by overlapping a plurality of annular iron core sheet layers, the iron core sheet material is formed by laminating 0.35mm thick silicon steel sheets, the sheets are mutually insulated, so that iron core loss caused by the rotating magnetic field in the stator iron core is reduced, each iron core sheet layer is formed by splicing a plurality of T-shaped iron core sheets side by side, a plurality of positioning bosses 247-1 are arranged on the upper side of the iron core sheet, positioning grooves corresponding to the positioning bosses 247-1 are arranged on the lower end face, corresponding side bosses-4 and side grooves 247-3 are respectively arranged at the transverse two ends of the iron core sheet, and through the positioning bosses 247-1, the positioning bosses 247-1, The side bosses 247-4 and side recesses 247-3 allow for the quick assembly of a large number of laminations.
In order to fix the stator core group 247 and the stator winding 245, both axial ends of the stator core group 247 are provided with the bobbin groups 246, the bobbin groups 246 are brackets for supporting the stator winding 245 and are also connecting devices for fixing the connection between the stator cores 247, the bobbin groups 246 are combined by a plurality of bobbins 246-2 side by side to form a ring shape, the upper end of the bobbin 246-2 is provided with a winding slot 246-1 which is through from left to right, the lower part of the bobbin 246-2 is provided with two hollow slot plates 246-4 which are arranged side by side, the adjacent hollow slot plates 246-4 on the adjacent bobbins 246-2 are spliced together and inserted between the adjacent core pieces on the stator core group 247 to form a hollow slot, the stator winding 245 is wound on each bobbin 246-2 and is simultaneously wound on the stator core group 247, with this structure, the stator core assembly 247, the stator winding 245 and the bobbin assembly 246 form a firm body.
Preferably, the terminal assembly 243 mainly functions to transmit electrical signals, the terminal assembly 243 includes a Pin fixing seat 243-1, a first connecting piece 243-2, a second connecting piece 243-3, a third connecting piece 243-4 and a fourth connecting piece 243-5, the first connecting piece 243-2, the second connecting piece 243-3, the third connecting piece 243-4 and the fourth connecting piece 243-5 are spliced with each other to form a ring shape corresponding to the stator winding 245, the fourth connecting piece 243-5 is connected with the stator winding 245, one end of each of the first connecting piece 243-2, the second connecting piece 243-3 and the third connecting piece 243-4 is provided with a Pin hole, the Pin holes of the first connecting piece 243-2, the second connecting piece 243-3 and the third connecting piece 243-4 are arranged side by side and correspond to the Pin holes of the Pin fixing seat 243-1 one by one, a centering ring 242 is sleeved between the upper end of the Pin fixing seat 243-1 and the corresponding Pin 241, the first connecting piece 243-2, the second connecting piece 243-3, the third connecting piece 243-4 and the fourth connecting piece 243-5 are connected into a whole, so that the conduction between the Pin 241 and the stator winding 245 is realized, the centering ring 242 is an elastic rubber piece and has the main function of protecting the connection between the Pin fixing seat 243-1 and the Pin 241 and also determining the circle center of the Pin 241.
The working principle is as follows: when a brake pedal is arranged below a driver tower, a motor drives a screw rod of the ball screw pair 220 to rotate, the ball screw pair 220 converts the rotary motion of the screw rod into the linear motion of a nut through a spiral raceway and a circulating loop of a steel ball, and meanwhile, a guide aluminum pipe limits the nut to rotate along with the screw rod; the screw drives the power cylinder piston shaft, the piston gasket, the piston leather cup and the piston end cover to move linearly towards the power cylinder, and hydraulic oil in the power cylinder body is pressed to the four wheels through the cylinder body loop hole by pressure generated by the screw, so that the driving force of the motor is converted into brake hydraulic pressure.
It is not difficult to discover, the utility model discloses compactness rational in infrastructure, it is ingenious with ball vice combination, install fast portably with braking system valve physical stamina, the functioning speed is fast, and waterproof nature is good.
Claims (10)
1. The utility model provides a high-speed direct current brushless motor for automobile brake system, includes motor housing (270), stator module (240) and rotor subassembly (210), the internally mounted of motor housing (270) have stator module (240), the inside coaxial rotation of stator module (240) be provided with rotor subassembly (210), its characterized in that:
rotor subassembly (210) including rotor core (213) that is the tube-shape and magnet steel (212) of evenly setting in rotor core (213) outside, the one end of rotor core (213) insert in the one end of motor housing (270) and link to each other with motor housing (270) through bearing (260), rotor core (213) inside coaxial arrangement have with rotor core (213) one end fixed continuous ball screw pair (220), the other end axial of rotor core (213) install PTS magnetic ring subassembly (360), the lead screw nut on ball screw pair (220) link to each other with helping hand jar piston shaft (420) axial, stator module (240) including stator core group (247), around connect stator winding (245) inside stator core group (247) and PTS (243) with stator winding (245) switch-on, terminal subassembly (243) on be provided with a plurality of Pin insert Pin(s) (Pin insert (212) in brake system valve body (350) terminal subassembly 241).
2. The high-speed direct current brushless motor for the automobile brake system according to claim 1, characterized in that: and a bearing retainer ring (250) riveted with the motor shell (270) is arranged between the bearing (260) and the rotor core (213).
3. The high-speed dc brushless motor for a brake system of an automobile according to claim 2, wherein: and a fixed bolt gasket (222) is arranged in the middle of the outer side end of the bearing (260), and a screw rod fixing bolt (221) connected with one end of a screw rod of the ball screw pair (220) penetrates through the center of the fixed bolt gasket (222).
4. The high-speed dc brushless motor for a brake system of an automobile according to claim 3, wherein: the motor tail cover (290) is installed on the end face of one end, provided with the bearing (260), of the motor shell (270), the motor tail cover (290) comprises a disc-shaped body (290-1), a circle of flanging part (290-2) is arranged on the edge of the disc-shaped body (290-1), the flanging part (290-2) is embedded into an end cover groove (270-7) at the end part of the motor shell (270), and a tail cover sealing ring (280) is installed between the inner side wall of the disc-shaped body (290-1) and the motor shell (270).
5. The high-speed dc brushless motor for a brake system of an automobile according to claim 4, wherein: one end of the motor housing (270) connected with the brake system valve body (350) is provided with a square flange (270-2), and a plurality of reinforcing ribs (270-18) are arranged between one side of the flange (270-2) and the side wall of the motor housing (270).
6. The high-speed dc brushless motor for a brake system of an automobile according to claim 1, wherein: one end of the rotor core (213) is axially provided with a cylindrical shaft (213-10), the cylindrical shaft (213-10) is internally provided with a screw rod connecting through hole (213-11), the bearing (260) is sleeved outside the cylindrical shaft (213-10), the outer side wall of the rotor core (213) is provided with magnetic steel mounting planes (213-1) side by side, adjacent magnetic steel mounting planes (213-1) are separated by separating convex strips (213-2), and the inner side wall of the screw rod connecting through hole (213-11) is provided with an anti-rotation plane (213-4) matched with the screw rod.
7. The high-speed dc brushless motor for a brake system of an automobile according to claim 6, wherein: the rotor comprises a rotor core (213), magnetic steel protective sleeves (211) wrapping magnetic steel (212) are coaxially arranged on the outer sides of two ends of the rotor core (213), the magnetic steel protective sleeves (211) are cylindrical thin-wall parts, the inner side walls of the magnetic steel protective sleeves are fixing surfaces (211-4) in contact with the magnetic steel (212), and conical surfaces (211-2) are arranged on the inner sides of opening ends of the magnetic steel protective sleeves.
8. The high-speed dc brushless motor for a brake system of an automobile according to claim 1, wherein: stator iron core group (247) constitute by the stack of a plurality of annular iron core lamella, every iron core lamella is spliced side by the iron core piece that a plurality of are T shapes and forms, iron core piece upside be provided with a plurality of location boss (247-1), the terminal surface is provided with the positioning groove corresponding with location boss (247-1), the horizontal both ends of iron core piece be provided with corresponding side boss (247-4) and side recess (247-3) respectively.
9. The high-speed dc brushless motor for a brake system of an automobile according to claim 8, wherein: the stator core group (247) is characterized in that winding frame groups (246) are arranged at two axial ends of the stator core group (247), the winding frame groups (246) are combined side by side to form a ring shape, a winding groove (246-1) which is communicated from left to right is formed in the upper end of each winding frame (246-2), two hollow groove plates (246-4) which are arranged side by side are arranged at the lower part of each winding frame (246-2), and the hollow groove plates (246-4) which are close to each other on the adjacent winding frames (246-2) are spliced together and inserted into the hollow grooves formed between the adjacent core pieces on the stator core group (247).
10. The high-speed dc brushless motor for a brake system of an automobile according to claim 1, wherein: the terminal assembly (243) comprises a Pin needle fixing seat (243-1), a first connecting piece (243-2), a second connecting piece (243-3), a third connecting piece (243-4) and a fourth connecting piece (243-5), wherein the first connecting piece (243-2), the second connecting piece (243-3), the third connecting piece (243-4) and the fourth connecting piece (243-5) are spliced into a ring shape corresponding to the stator winding (245), the fourth connecting piece (243-5) is connected with the stator winding (245), one ends of the first connecting piece (243-2), the second connecting piece (243-3) and the third connecting piece (243-4) are respectively provided with a Pin needle hole, and the Pin holes in the first connecting piece (243-2), the second connecting piece (243-3) and the third connecting piece (243-4) are arranged side by side with the Pin needle fixing seat (243-1) 243-1), and a centering ring (242) is sleeved between the upper end of the Pin needle fixing seat (243-1) and the corresponding Pin inserting needle (241).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922251214.7U CN211239582U (en) | 2019-12-16 | 2019-12-16 | High-speed direct-current brushless motor for automobile brake system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922251214.7U CN211239582U (en) | 2019-12-16 | 2019-12-16 | High-speed direct-current brushless motor for automobile brake system |
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| CN211239582U true CN211239582U (en) | 2020-08-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753008A (en) * | 2021-09-16 | 2021-12-07 | 中汽创智科技有限公司 | Pressure control module and electro-hydraulic servo braking system |
| CN117227381A (en) * | 2023-11-08 | 2023-12-15 | 宁波拓普集团股份有限公司 | Linear driving type active suspension system |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753008A (en) * | 2021-09-16 | 2021-12-07 | 中汽创智科技有限公司 | Pressure control module and electro-hydraulic servo braking system |
| CN117227381A (en) * | 2023-11-08 | 2023-12-15 | 宁波拓普集团股份有限公司 | Linear driving type active suspension system |
| CN117227381B (en) * | 2023-11-08 | 2024-03-19 | 宁波拓普集团股份有限公司 | Linear driving type active suspension system |
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