CN219124005U

CN219124005U - EPS brushless booster motor

Info

Publication number: CN219124005U
Application number: CN202223298491.1U
Authority: CN
Inventors: 古培南; 刘春建; 郭鹏; 林李健; 袁林; 余勋灿; 王世年; 尹传友
Original assignee: Huizhou Longde Technology Co ltd
Current assignee: Huizhou Longde Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-06-02
Anticipated expiration: 2032-12-08

Abstract

The utility model relates to the technical field of brushless motors, in particular to an EPS brushless power-assisted motor. The technical proposal comprises: the inside of casing has the stator, be equipped with the coil skeleton on the stator, the winding has the enameled wire on the coil skeleton, the outside cover that the coil skeleton is located the enameled wire is equipped with the insulating piece, the bottom of stator is connected with the dish that converges, the centre gripping is fixed with the conducting strip between stator and the dish that converges, rotor core is installed in the inboard rotation of stator, rotor core's bottom is equipped with response magnetic ring support and response magnetic ring body, rotor core's outside is equipped with the magnetic shoe, rotor core is located the outside of magnetic shoe and has cup jointed the steel bushing, the top of casing is equipped with the end cover, rotor core's inside is equipped with the main shaft, just the main shaft runs through the end cover. According to the utility model, the purpose of the same winding mode of a single iron core is realized by changing the original double iron core pairing winding technology, and the winding difficulty and the process cost are greatly reduced.

Description

EPS brushless booster motor

Technical Field

The utility model relates to the technical field of brushless motors, in particular to an EPS brushless power-assisted motor.

Background

The electric power steering system (electronic power steering, EPS) of the automobile is directly connected with the output of the EPS motor to provide power for a driver, and the EPS motor only works when steering and has little power consumption when not steering, so that the automobile has better fuel economy.

The EPS motor is mainly used for providing power for automobile steering, so the EPS motor has the following characteristics:

1) The EPS system has a large amplification effect, the input of a tiny torque can generate large actual output torque fluctuation, and the EPS system has the capability of long and short operation response time and quick response, so that the EPS system has high requirements on the cogging torque of a motor;

2) The motor is arranged in the automobile cockpit, the space is airtight, the motor is frequently used and is close to the human ear, so that the noise requirement on the motor is high;

3) The EPS motor is used as an automobile, and has long service life and high-load working capacity.

The existing double-winding EPS brushless motor needs double iron cores to pair and wire, the winding difficulty is high, the technical requirement is high, and then the production cost of the motor is high.

Disclosure of Invention

The utility model provides an EPS brushless power-assisted motor, which solves the technical problems.

The scheme for solving the technical problems is as follows:

the utility model provides a brushless helping hand motor of EPS, includes end cover, rotor core, casing and stator, the internally mounted of casing has the stator, be equipped with the coil skeleton on the stator, the winding has the enameled wire on the coil skeleton, the outside cover that the coil skeleton is located the enameled wire is equipped with the insulating piece, the bottom of stator is connected with the dish that converges, the centre gripping is fixed with the conducting strip between stator and the dish that converges, rotor core is installed in the inboard rotation of stator, rotor core's bottom is equipped with response magnetic ring support and response magnetic ring body, rotor core's outside is equipped with the magnetic shoe, rotor core has cup jointed the steel bushing in the outside of magnetic shoe, the top of casing is equipped with the end cover, rotor core's inside is equipped with the main shaft, just the main shaft runs through the end cover.

The beneficial effects of the utility model are as follows: the stator is fixed inside the shell through a hot riveting mode, the stator is formed by splicing 12 monopole stator iron cores wound with enameled wires into circles and then welding the circles through laser, the enameled wires wound on the monopole rotor are integrated into three phase wires through conducting plates and converging plates, the converging plates and the conducting plates are utilized to simplify the wire arrangement process, the process cost is reduced, meanwhile, defects such as paint skin damage, short circuit and turn-to-turn defects caused by wire arrangement are eliminated, the conducting plates are arranged at the installing position of the converging plates, the converging plates and the conducting plates can be separately processed, integral injection molding is not needed, the manufacturing and material cost is reduced, the converging plates and the stator insulating plates are matched to adopt a quick buckling structure, the hot riveting operation mode is eliminated, the effects of simplifying the process and reducing the processing pollution are achieved, the aim of changing the original double-iron core pairing winding technology is achieved, the winding difficulty and the process cost are greatly reduced, the motor rotor is formed by rolling fit with the stator through a ball bearing, each layer of rotor iron cores with the three layers of heights of 10-13.5-degree misplaced rotor iron cores, each layer of the rotor iron cores is formed by laminating silicon steel sheets with the thickness of 0.5-to-27 pieces, the permanent magnet iron cores are formed by alternately laminating the magnet iron cores, and the magnet-pair-bonded magnet iron cores of 8-pairs are formed.

On the basis of the technical scheme, the utility model can be improved as follows.

Furthermore, the end covers and the end faces of the shell are respectively provided with a bearing, and the main shaft is rotatably arranged in the shell through the bearings.

The beneficial effects of adopting the further scheme are as follows: .

Further, the coil bobbins are uniformly distributed on the outer surface of the stator.

The beneficial effects of adopting the further scheme are as follows: .

Further, the confluence disc is provided with a back-off, the stator is provided with a bayonet, and the confluence disc is connected with the stator through the back-off and the bayonet in a clamping way.

The beneficial effects of adopting the further scheme are as follows: .

Further, the back of the confluence disc is provided with a terminal and an outlet nozzle, and the terminal penetrates through the outlet nozzle and is positioned at the outer side of the shell.

The beneficial effects of adopting the further scheme are as follows: .

Further, two insulating sheets are arranged in total, and the two insulating sheets are symmetrically distributed at two ends of the coil skeleton.

The beneficial effects of adopting the further scheme are as follows: .

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model.

In the drawings:

FIG. 1 is a schematic diagram of an oblique view of the present utility model;

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 3 is a prior art double core paired winding schematic diagram;

FIG. 4 is a schematic diagram of a single core winding of the present utility model;

FIG. 5 is a mating back-off structure of the buss plate and stator insulating sheets of the present utility model;

FIG. 6 is a schematic diagram of a manifold assembly according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. an end cap; 2. a bearing; 3. a steel sleeve; 4. a main shaft; 5. a rotor core; 6. a magnetic shoe; 7. an induction magnetic ring bracket; 8. an induction magnetic ring body; 9. an insulating sheet; 10. enamelled wires; 11. a coil bobbin; 12. a conductive sheet; 13. a confluence plate; 131. reversing; 14. a housing; 15. a stator; 151. a bayonet; 16. a terminal; 17. and the outlet nozzle.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, an embodiment of the present utility model is as follows:

example 1

The utility model provides a EPS brushless helping hand motor, including end cover 1, rotor core 5, casing 14 and stator 15, the internally mounted of casing 14 has stator 15, be equipped with coil skeleton 11 on the stator 15, coil skeleton 11 evenly distributed at the surface of stator 15, the winding has enameled wire 10 on the coil skeleton 11, the outside cover that coil skeleton 11 is located enameled wire 10 is equipped with insulating piece 9, stator 15 passes through the rivet hot mode to be fixed inside casing 14, and stator 15 is spliced into the circle by 12 monopole stator 15 that are wound enameled wire 10 and is formed through laser welding, the enameled wire 10 that is winded on the monopole rotor is integrated into the three-phase line through conducting strip 12 and busbar 13, utilize busbar 13 and conducting strip 12 structure simplification reason line process, make the technology cost reduce, get rid of simultaneously that the reason line causes the paint skin damage, lead to short circuit, inter-turn bad etc. bad, insulating piece 9 is equipped with two altogether, and two insulating pieces 9 are symmetrical distribution at the both ends of coil skeleton 11, the bottom of stator 15 is connected with busbar 13.

The back of the confluence disc 13 is provided with a terminal 16 and an outlet nozzle 17, the terminal 16 penetrates through the outlet nozzle 17 and is positioned at the outer side of the shell 14, the confluence disc 13 is provided with a back-off 131, the stator 15 is provided with a bayonet 151, the confluence disc 13 and the stator 15 are connected by the back-off 131 and the bayonet 151 in a clamping way, the back-off 131 is designed at the installation position of the conducting plate 12 in the confluence disc 13, so that the confluence disc 13 and the conducting plate 12 can be separately processed without integral injection molding, the manufacturing and material cost is reduced, the confluence disc 13 and the stator 15 insulating plate 9 are matched with each other by adopting a quick-buckling structure, the hot riveting operation mode is removed, the effects of simplifying the working procedure and reducing the processing pollution are achieved, the original double-core pairing winding technology is changed, the purpose of the same winding mode of a single core is realized, the winding difficulty and the process cost are greatly reduced, the stator 15 and the confluence disc 13 are fixedly clamped with the conducting strip 12, the inner side of the stator 15 is rotatably provided with the rotor iron core 5, the bottom end of the rotor iron core 5 is provided with the induction magnetic ring bracket 7 and the induction magnetic ring body 8, the outer side of the rotor iron core 5 is provided with the magnetic shoe 6, the rotor iron core 5 is positioned on the outer side of the magnetic shoe 6 and sleeved with the steel sleeve 3, the rotor is formed by overlapping and riveting three layers of rotor iron cores 5 with the height of 10-13.5 at a staggered angle of 5 degrees, each layer of rotor iron core 5 is formed by overlapping and riveting 20-27 silicon steel sheets with the thickness of 0.5, each layer of rotor iron core 5 is alternately stuck with 4 pairs of permanent magnet magnetic shoes 6 to form an 8-pole rotor, the top end cover 1 is arranged on the top end of the casing 14, the end covers 1 and the end faces of the casing 14 are respectively provided with the bearings 2, the main shaft 4 is rotatably arranged in the casing 14 through the bearings 2, the main shaft 4 is arranged in the casing 14, and the main shaft 4 penetrates through the end cover 1.

An EPS brushless assist motor based on embodiment 1, when in use: the stator 15 is fixed in the shell 14 through a hot riveting mode, the stator 15 is formed by splicing 12 monopole stators 15 wound with enameled wires 10 into a circle and then welding the circle through laser, the enameled wires 10 wound on the monopole rotor are integrated into three phase wires through the conducting plates 12 and the confluence plates 13, the confluence plates 13 and the conducting plates 12 are utilized to simplify the wire arrangement process, the process cost is reduced, meanwhile, defects such as paint skin damage, short circuit, turn-to-turn defects and the like caused by the wire arrangement are eliminated, the inverted buckles 131 are designed at the installation position of the conducting plates 12 in the confluence plates 13, the confluence plates 13 and the conducting plates 12 can be separately processed, the integral injection molding is not needed, the manufacturing and material cost is reduced, the confluence plates 13 and the stator 15 insulating plates 9 are matched to adopt a quick buckling structure, the hot riveting operation mode is eliminated, the effects of simplifying the process and reducing the processing pollution are achieved, the purposes of changing the original double-core pairing winding technology of a single core and the same winding mode are achieved, the effect of greatly reducing the winding difficulty and the process cost is greatly achieved, the rotor is formed by misplacement 5 DEG of the three-layer iron cores 5, each layer iron core 5 is formed by stacking the silicon iron cores 10-13.5, each layer of the iron core 5 is formed by laminating the silicon iron cores 5, the silicon iron cores of the magnet 6-magnet stack 6, and the permanent magnet is formed by laminating the silicon iron core 5 and the iron core 8-magnet stack 6.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.

Claims

1. An EPS brushless booster motor, characterized in that: including end cover (1), rotor core (5), casing (14) and stator (15), internally mounted of casing (14) has stator (15), be equipped with coil skeleton (11) on stator (15), the winding has enameled wire (10) on coil skeleton (11), coil skeleton (11) are located the outside cover of enameled wire (10) and are equipped with insulating piece (9), the bottom of stator (15) is connected with and converges and twines dish (13), the centre gripping is fixed with conducting strip (12) between stator (15) and converging dish (13), rotor core (5) are installed in the inboard rotation of stator (15), the bottom of rotor core (5) is equipped with response magnetic ring support (7) and response magnetic ring body (8), the outside of rotor core (5) is equipped with magnetic shoe (6), rotor core (5) are located the outside of magnetic shoe (6) and have cup jointed steel bushing (3), the top of casing (14) is equipped with end cover (1), the inside of rotor core (5) is equipped with main shaft (4), just main shaft (4) runs through end cover (1).

2. An EPS brushless booster motor as defined in claim 1, wherein: the end covers (1) and the end faces of the machine shell (14) are respectively provided with a bearing (2), and the main shaft (4) is rotatably arranged in the machine shell (14) through the bearings (2).

3. An EPS brushless booster motor as defined in claim 1, wherein: the coil frameworks (11) are uniformly distributed on the outer surface of the stator (15).

4. An EPS brushless booster motor as defined in claim 1, wherein: the busbar disc (13) is provided with a back-off (131), the stator (15) is provided with a bayonet (151), and the busbar disc (13) is connected with the stator (15) through the back-off (131) and the bayonet (151) in a clamping mode.

5. An EPS brushless booster motor as defined in claim 1, wherein: the back of the confluence disc (13) is provided with a terminal (16) and an outlet nozzle (17), and the terminal (16) penetrates through the outlet nozzle (17) and is positioned at the outer side of the shell (14).

6. An EPS brushless booster motor as defined in claim 1, wherein: the two insulating sheets (9) are arranged at the two ends of the coil skeleton (11) symmetrically, and the two insulating sheets (9) are distributed symmetrically.