CN212183221U

CN212183221U - Stator insulating ring for hub motor of electric vehicle

Info

Publication number: CN212183221U
Application number: CN202021259236.4U
Authority: CN
Inventors: 付开强; 陆肃中; 杨云峰; 林海波; 陈俊吉
Original assignee: Wenling Jiuzhou Electromechanical Co ltd
Current assignee: Zhejiang Jiuzhou New Energy Technology Co Ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2020-12-18
Anticipated expiration: 2030-07-01

Abstract

The utility model provides an electric motor car wheel hub motor is with stator insulating ring belongs to electric motor car technical field. It has solved the problem of current in-wheel motor winding coil plastic inefficiency. This electric motor car wheel hub motor stator insulating ring is including being cyclic annular and being used for the lock joint main part on the stator support, and the interval is provided with the card line knot that a plurality of is used for fixed coil winding common terminal on the inner peripheral surface of main part, is equipped with a plurality of card line hook in the main part, forms between card line hook and the main part and supplies each branch road phase line embedding fixed first card wire casing, has the line groove of crossing in the card line hook, crosses the line groove and is linked together with first card wire casing. The stator insulating ring has the advantage of improving the shaping efficiency of the winding coil of the hub motor of the electric vehicle.

Description

Stator insulating ring for hub motor of electric vehicle

Technical Field

The utility model belongs to the technical field of the electric motor car, a stator insulating ring for electric motor car wheel hub motor is related to.

Background

The insulation performance of the hub motor of the electric vehicle is one of the main indexes of the running quality of the motor. If the insulation performance is poor, insulation breakdown is easy to occur, and the working performance of the motor is directly influenced.

In order to avoid the above problems, various improvements have been made, and some patents have been applied, for example, chinese patent documents disclose a stator insulation structure of an electric vehicle hub motor [ application number: 201621194558.9, respectively; application publication No.: CN206135590U ], which includes annular insulating plates fixed on the two side end faces of the iron core of the stator, on which coil windings are wound, the inner periphery of one insulating plate has an annular insulating ring, and the inner periphery of the insulating ring has a wire clip for fixing the tail wire of the coil winding.

According to the stator insulation structure with the structure, the wire clamping buckle used for fixing the coil winding public end is arranged on the inner peripheral surface of the insulation ring, so that the coil winding public end does not need a binding wire process, the simplified operation process is realized, and the working efficiency is improved. However, the stator insulation structure of this structure is generally used for a stator of a series winding, but is not applicable to a stator of a parallel winding, especially a parallel winding stator having a plurality of winding common terminals.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide an electric motor car wheel hub motor stator insulating ring, the technical problem of solution is how to make stator insulating ring be applicable to the stator of parallelly connected winding, improves winding coil plastic efficiency.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an electric motor car wheel hub motor stator insulating ring, is including being cyclic annular and being used for the main part of lock joint on stator support, the interval is provided with the buckle that a plurality of is used for fixed coil winding common port on the inner peripheral surface of main part, its characterized in that, be equipped with a plurality of trip in the main part, form between trip and the main part and supply each branch road phase line embedding fixed first card wire casing, the line groove has in the trip, it is linked together with first card wire casing to cross the line groove.

The main part lock joint is fixed on stator support, and coil winding public end embedding is fixed in the card line is detained, and each branch road phase line is fixed in first card wire casing through embedding behind the wire casing through hard extruded mode, and each branch road phase line is fixed through the card line collude promptly for parallel winding's stator coil plastic is more convenient, need not additionally to set up the ligature line, saves loaded down with trivial details ligature line process, simplifies production process, improves winding coil plastic efficiency.

In the above stator insulating ring for the electric vehicle hub motor, the wire clamping hook comprises a cross section

Or

The wire passing groove is formed between the first clamping hook part and the second clamping hook part, and the first wire passing groove is located in the first clamping hook part. According to the structure, the minimum distance between the two groove walls of the wire passing groove is smaller than the outer diameter of each branch phase line, and a certain external force is applied to enable each branch phase line to pass through the wire passing groove, so that the wire clamping hook can better clamp each branch phase line and prevent each branch phase line from popping up; the bore of first trip portion opening part, the external diameter that the distance between first trip portion and the main part is greater than each branch road phase line promptly makes entering into first card wire casing that each branch road phase line can be better, need not additionally to set up the ligature line, improves winding coil plastic efficiency.

As another aspect, in the above stator insulating ring for an electric vehicle hub motor, the wire hook includes a cross-section

The wire passing groove is formed between the first clamping hook part and the second clamping hook part, and the first wire passing groove is located in the first clamping hook part. This kind of structure, the minimum interval of crossing between two cell walls of wire casing is less than the external diameter of each branch road phase line, exerts certain external force and makes each branch road phase line pass through the wire casing, makes each branch road phase line of blocking that the card line colludes can be better, prevents that each branch road phase line from popping out, need not additionally to set up the ligature line, improves winding coil plastic efficiency.

In foretell stator insulating collar for electric motor car wheel hub motor, the fretwork hole that runs through has in the main part, the fretwork hole is just to setting up with first trip portion, first trip portion links firmly the border department that is close to main part inner peripheral surface one side in the fretwork hole, second trip portion links firmly the border that is close to main part outer peripheral face one side in the fretwork hole. This stator insulating collar is injection moulding, and the setting of fretwork hole and the position relation of first trip portion and second trip portion make the stator insulating collar drawing of patterns convenient, make this stator insulating collar processing convenient.

In the stator insulating ring for the electric vehicle hub motor, the second clamping hook part is obliquely arranged towards the inner side surface of the first clamping hook part. The inner side surface which is obliquely arranged plays a role in guiding, so that phase lines of all the branch circuits can better pass through the wire passing grooves, and the shaping efficiency of the winding coil is improved.

In the stator insulating ring for the hub motor of the electric vehicle, the wire clamping buckles are in a right-angle shape or an obtuse-angle shape, second wire clamping grooves used for fixing the common end of the coil winding are formed between the wire clamping buckles and the main body, and the wire clamping buckles are arranged at equal intervals along the inner peripheral surface of the main body. The second wire clamping groove is an open groove, the common end of the coil winding is embedded and fixed in the second wire clamping groove, the embedding and the fixing are convenient, and the shaping efficiency of the winding coil is improved.

In the stator insulating ring for the hub motor of the electric vehicle, the section of the main body is in the radial direction of the main body

And the main body is provided with an embedded groove for embedding the stator bracket. This kind of structure forms concave-convex structure, makes stator insulating ring can be better fixed with the stator support cooperation, and can reduce the use amount of material, reduce cost.

In the stator insulating ring for the hub motor of the electric vehicle, the main body, the wire clip and the wire clip hook are all made of nylon or reinforced nylon containing glass fibers.

Compared with the prior art, the utility model provides an electric motor car wheel hub is stator insulating ring for motor has following advantage:

1. this stator insulating ring for electric motor car wheel hub motor passes through the card line and buckles fixed coil winding public end, colludes fixed each branch road phase line through the card line, need not additionally to set up the ligature line, saves loaded down with trivial details ligature line process, simplifies the production process for the stator coil plastic of parallelly connected winding is more convenient, improves winding coil plastic efficiency.

2. This main part, card line of stator insulating ring for electric motor car wheel hub motor are buckled and are colluded through the one shot forming that moulds plastics, and the drawing of patterns is convenient, and processing is convenient.

Drawings

Fig. 1 is a schematic overall structure diagram of the stator insulating ring for the hub motor of the electric vehicle.

Fig. 2 is an enlarged view of the stator insulating ring for the electric vehicle hub motor in the area of fig. 1A.

Fig. 3 is a sectional view of the stator insulating ring hook for the hub motor of the electric vehicle.

In the figure, 1, main body; 11. hollowing out holes; 12. a groove is embedded; 2. clamping a wire buckle; 21. a second wire clamping groove; 3. a wire is clamped and hooked; 31. a first wire clamping groove; 32. a wire passing groove; 33. a first hook part; 34. a second hook part.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, the stator insulating ring for the hub motor of the electric vehicle includes a main body 1, a wire clip 2, and a wire clip 3. Main part 1, card line are buckled 2 and are colluded 3 through the one shot forming that moulds plastics, and in this embodiment, main part 1, card line are buckled 2 and are colluded 3 and make by the nylon materials, and the quantity that card line was buckled 2 and is colluded 3 is three, and in actual production, main part 1, card line are buckled 2 and are colluded 3 and make by the reinforcing nylon that contains glass fiber, and the quantity that card line was buckled 2 and is colluded 3 can be two or four.

The main body 1 is annular, and the section of the main body 1 is along the radial direction of the main body 1

The main body 1 is provided with an embedded groove 12 for embedding the stator support, and the stator support is partially embedded into the embedded groove 12, so that the main body 1 is buckled on the stator support. The setting that the card line was detained 2 equidistant is on the inner peripheral surface of main part 1, and in this embodiment, card line is detained 2 and is the right angle form, and in actual production, card line is detained 2 and can be the obtuse angle form, forms the second card wire casing 21 that is used for fixed coil winding common port between card line is detained 2 and the main part 1.

The wire clamping hook 3 is arranged on the main body 1, and as shown in fig. 2 and 3, a first wire clamping groove 31 for embedding and fixing phase lines of each branch is formed between the wire clamping hook 3 and the main body 1. Specifically, the wire hook 3 comprises a cross section

The first hooking portion 33 and the strip-shaped second hooking portion 34, and the first wire clamping groove 31 is located in the first hooking portion 33. Second trip portion 34 is located the opening part of first trip portion 33, form between first trip portion 33 and the second trip portion 34 and cross wire casing 32, it is linked together with first trip wire casing 31 to cross wire casing 32, the minimum interval between two cell walls of wire casing 32 is less than the external diameter of each branch road phase line, the bore of first trip portion 33 opening part, namely the distance between first trip portion 33 and main part 1 is greater than the external diameter of each branch road phase line, make each branch road phase line can enter into first trip wire casing 31, second trip portion 34 sets up towards the medial surface slope of first trip portion 33.

The main part 1 is provided with a through hollow hole 11, the hollow hole 11 is opposite to the first clamping and hooking part 33, the first clamping and hooking part 33 is fixedly connected at the edge of the hollow hole 11 close to one side of the inner peripheral surface of the main part 1, and the second clamping and hooking part 34 is fixedly connected at the edge of the hollow hole 11 close to one side of the outer peripheral surface of the main part 1.

When the stator is used, the main body 1 is fixed on the stator support, and the common end of the coil winding is embedded into the second wire clamping groove 21, so that the common end of the coil winding is fixed by the wire clamping buckle 2. Then, the phase lines of each branch are embedded and fixed in the first wire clamping groove 31 through the corresponding wire passing grooves 32 in a hard extrusion mode, and are fixed through the wire clamping hooks 3.

Example two

The structure and principle of this embodiment are substantially the same as those of the first embodiment, except that in this embodiment, the cross section of the first hook portion 33 is the same

And (4) shaping.

EXAMPLE III

And (4) shaping.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the main body 1, the hollow hole 11, the insertion groove 12, the thread catch 2, the second thread catching groove 21, the thread catching hook 3, the first thread catching groove 31, the thread passing groove 32, the first hooking part 33, the second hooking part 34, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides an electric motor car wheel hub motor stator insulating ring, is including being cyclic annular and being used for main part (1) of lock joint on stator support, the interval is provided with a plurality of on the inner peripheral surface of main part (1) and is used for the buckle (2) of fixed coil winding common port, a serial communication port, be equipped with a plurality of trip (3) on main part (1), form between trip (3) and main part (1) and supply each branch road phase line embedding fixed first wire casing (31), line groove (32) have in trip (3), it is linked together with first wire casing (31) to cross line groove (32).

2. The stator insulating ring for the hub motor of the electric vehicle as claimed in claim 1, wherein the wire clamping hook (3) comprises a cross section of

Or

First trip portion (33) and be banding second trip portion (34), second trip portion (34) are located the opening part of first trip portion (33), form between first trip portion (33) and second trip portion (34) cross wire casing (32), first wire casing (31) are located in first trip portion (33).

3. The stator insulating ring for the hub motor of the electric vehicle as claimed in claim 1, wherein the wire clamping hook (3) comprises a cross section of

4. The stator insulating ring for the hub motor of the electric vehicle as claimed in claim 2 or 3, wherein the main body (1) has a through hollow hole (11), the hollow hole (11) is opposite to the first hook portion (33), the first hook portion (33) is fixedly connected to the edge of the hollow hole (11) on the side close to the inner circumferential surface of the main body (1), and the second hook portion (34) is fixedly connected to the edge of the hollow hole (11) on the side close to the outer circumferential surface of the main body (1).

5. The stator insulating ring for the hub motor of the electric vehicle as claimed in claim 2 or 3, wherein the second hook part (34) is disposed obliquely toward the inner side of the first hook part (33).

6. The stator insulating ring for the hub motor of the electric vehicle as claimed in claim 1, 2 or 3, wherein the wire clip (2) is in a right angle shape or an obtuse angle shape, a second wire clip groove (21) for fixing the common end of the coil winding is formed between the wire clip (2) and the main body (1), and the wire clip (2) is arranged at equal intervals along the inner circumferential surface of the main body (1).

7. A stator insulator ring for an electric vehicle hub motor according to claim 1, 2 or 3, characterized in that the cross section of the main body (1) is in the radial direction of the main body (1)

The main body (1) is provided with an embedded groove (12) for embedding the stator bracket.

8. The stator insulating ring for the hub motor of the electric vehicle as claimed in claim 1, 2 or 3, wherein the main body (1), the wire clip (2) and the wire hook (3) are all made of nylon or reinforced nylon containing glass fiber.