CN111313572B

CN111313572B - Non-contact distribution vehicle driving motor stator structure

Info

Publication number: CN111313572B
Application number: CN202010181229.5A
Authority: CN
Inventors: 吴晓峰; 吴凌云
Original assignee: Zhejiang Linix Motor Co Ltd
Current assignee: Zhejiang Linix Motor Co Ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2022-04-01
Anticipated expiration: 2040-03-16
Also published as: CN111313572A

Abstract

The invention relates to a stator structure of a driving motor of a contactless distribution vehicle, which comprises a stator core, wherein radial stator teeth are formed on the excircle of the stator core, a stator bushing is arranged on the inner side of the stator core, an insulating plate is arranged at one end of the stator core, a Hall plate is arranged at the other end of the stator, radial insulating strips are arranged on the excircle of the insulating plate and the excircle of the Hall plate, the insulating strips are respectively covered on the surfaces of the stator teeth corresponding to the two end surfaces of the stator core, and an inwards-protruding Hall installation part for arranging the Hall is formed on the inner circle of the Hall plate; the invention has the characteristics of reducing the axial length space of the stator and the axial length of the motor, thereby reducing the volume of the motor, leading the motor to tend to be flat, occupying less space of the hub motor on a non-receiving delivery vehicle and the like.

Description

Non-contact distribution vehicle driving motor stator structure

Technical Field

The invention relates to a stator structure of a driving motor of a non-contact distribution vehicle, belonging to the technical field of motor production.

Background

In the current epidemic situation, in order to avoid the spreading of novel coronavirus caused by direct contact between people, it is necessary to develop and use a contactless distribution vehicle, so as to avoid the spreading of virus when distribution services such as takeaway and express delivery are used, thereby helping to control the epidemic situation.

The non-contact distribution vehicle is usually driven by a brushless hub motor to reduce the use amount of accessories and reduce the volume, the motor comprises a stator core, a stator bushing, a motor shaft, a circuit board and the like, the circuit board of a common motor is fixed on an insulating plate, and then the insulating plate is fixed at the end part of the stator core, so that the axial length space of the stator core is increased, the axial length of the motor is increased, the volume of the motor is increased, and for the hub motor, the non-contact distribution vehicle can occupy larger space and is heavier.

Disclosure of Invention

The invention aims to provide a driving motor stator structure of a contactless distribution vehicle, which solves the problems that the circuit occupies large motor space and the like in the prior art.

The technical purpose of the invention is mainly solved by the following technical scheme: a contactless distribution vehicle driving motor stator structure comprises a stator core, wherein radial stator teeth are formed on the outer circle of the stator core, a stator bushing is arranged on the inner side of the stator core, an insulating plate is arranged at one end of the stator core, a Hall plate is arranged at the other end of the stator, radial insulating strips are arranged on the outer circle of the insulating plate and the outer circle of the Hall plate, the insulating strips cover the surfaces of the stator teeth corresponding to the two end faces of the stator core respectively, and an inward convex protective circuit arrangement part for arranging the Hall is formed on the inner circle of the Hall plate; through the Hall plate, the setting of insulation board and protection circuit arrangement portion, can avoid the Hall plate to pass through the insulation board and connect on stator core and lead to stator core's axial length space to increase, can effectually shorten stator core's axial length, thereby motor axial length has been reduced, make the motor tend to the flattening, thereby reduce the volume of motor, make the more light and handy flexibility of contactless delivery car, through the setting of protection circuit arrangement portion on the Hall plate, make the circuit compacter on the Hall plate, convenient wiring.

Preferably, the protection circuit arrangement portion is provided in an arc shape on the circumferential inner side; through the setting of above-mentioned arcuation structure, can increase the space that supplies the motor shaft to stretch out, avoid the interference to the installation of motor shaft, and reduce the space and occupy, guarantee the compactedness of circuit simultaneously.

Preferably, a plurality of reinforcing ribs are arranged on the circumferential inner side of the stator bushing, notches for the wire group to pass through are formed in the reinforcing ribs, and the protection circuit arrangement part is located above the notches on the hall plate and connected with the wire group; through the position setting to protection circuit arrangement portion described above, can guarantee that coil lug connection is on protection circuit arrangement portion, the required length of furthest's shortening coil connection, and avoid the indiscriminate of end of a thread to wind and cause the influence to the rotation of motor, cover the winding end of a thread simultaneously, avoid the indiscriminate of end of a thread to wind and mixed and disorderly.

Preferably, at least one limiting groove is formed in the outer side of the stator bushing, and limiting convex parts matched with the limiting grooves are arranged on the circumferential inner sides of the Hall plate and the insulating plate; through the setting of above-mentioned spacing groove and spacing convex part to fix a position stator bush, avoid stator bush to rotate, can fix a position hall board and insulation board simultaneously, avoid hall board and insulation board skew, strengthen the stability of hall board and insulation board.

Preferably, the insulating strip is fixedly connected with the stator teeth through glue and is wound together by the coil; through the setting of above-mentioned structure, increase the insulation area to stator core, guarantee insulating effect, through the coil winding, increase the stationary force between insulation board and the stator core simultaneously.

Preferably, the insulation plate and the circumferential inner side of the stator core are coaxially provided with positioning grooves for positioning the initial positions of the winding of the coils; through the setting of above-mentioned constant head tank for the coil can be fixed through the constant head tank when the winding, avoids the off-line, avoids the copper line to form the hindrance in the installation of stator bush in the outside of stator core inner wall simultaneously.

Preferably, the end part of each stator tooth is provided with a plurality of placing grooves for placing hall elements, and the end parts of a plurality of insulating strips are connected with the hall elements; through the arrangement of the placing groove, the Hall element can be directly fixed through the stator core, occupation of redundant space is avoided, setting of redundant circuit boards can be avoided, cost is reduced, and occupation of space is reduced.

Therefore, the invention has the characteristics of reducing the axial length space of the stator core, reducing the axial length of the motor, reducing the volume of the motor, leading the motor to tend to be flat, occupying less space on a receiving-free distribution vehicle of the hub motor and the like.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the alternate view of FIG. 1;

fig. 3 is a perspective view illustrating the hall plate, the insulating plate, and the stator core of fig. 1 being engaged with each other.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

Example 1: as shown in fig. 1-3, a stator structure of a driving motor of a contactless distribution vehicle comprises a stator core 1, wherein radial stator teeth 11 are formed on the outer circle of the stator core, a stator bushing 12 is arranged on the inner side of the stator core 1, an insulating plate 3 is arranged at one end of the stator core 1, a hall plate 2 is arranged at the other end of the stator core 1, radial insulating strips 21 are respectively arranged on the outer circle of the insulating plate 3 and the outer circle of the hall plate 2, the insulating strips 21 respectively cover the surfaces of the stator teeth 11 corresponding to the two end faces of the stator core 1, an inward convex protective circuit arrangement part 22 for arranging hall is formed on the inner circle of the hall plate 2, and the arrangement of the hall plate, the insulating plate and the protective circuit arrangement part can prevent the hall plate from being connected to the stator core through the insulating plate to cause the increase of the axial length space of the stator core, the axial length of the stator core can be effectively shortened, so that the axial length of the motor is reduced, the motor tends to be flat, the size of the motor is reduced, the contactless distribution vehicle is lighter and more flexible, and the circuit is more compact on the Hall plate and convenient to wire by arranging the protective circuit arrangement part on the Hall plate; the circumferential inner side of the protection circuit arrangement part 22 is arranged in an arc shape, and the arrangement of the arc-shaped structure can increase the space for the motor shaft to extend out, avoid the interference on the installation of the motor shaft, reduce the occupied space and ensure the compactness of the circuit; above-mentioned hall board and insulation board all adopt the hall board setting for the pencil is compacter, and it is more convenient to lay wire, and above-mentioned protection circuit arrangement portion is ordinary circuit board, with the concentrated connection of coil bundle, extends away and circuit connection.

As shown in fig. 1, the insulating strip 21 is fixedly connected with the stator teeth through glue and is wound by the coil, through the arrangement of the structure, the insulating area of the stator core is increased, the insulating effect is ensured, meanwhile, through the winding of the coil, the fixing force between the insulating plate and the stator core is increased, and when the coil is wound, the insulating strip is connected with the stator teeth to be wound and fixed together; the end parts of the stator teeth 11 are provided with a plurality of placing grooves 111 for placing Hall elements, and the end parts of a plurality of insulating strips 21 are connected with the Hall elements; through the setting of above-mentioned standing groove, for the hall element of snap-on the hall plate provides the space, play the fixed action to hall element, avoided occuping more spaces simultaneously, when setting up hall element, can directly connect hall element on the hall plate through the circuit, avoid the setting of unnecessary circuit board, can directly fix hall element through stator core simultaneously, very simple and convenient.

As shown in fig. 3, insulation board 3 and stator core 1's circumference inboard all is coaxial to be equipped with the constant head tank 31 that is used for the winding initial position location of coil, through the setting of above-mentioned constant head tank for the coil can be fixed through the constant head tank when the winding, avoids the off-line, avoids the copper line to form the hindrance to stator bush's installation in the outside of stator core inner wall simultaneously, and when the wire winding was started, the end of a thread was wound on the constant head tank earlier, then began to wind on each stator tooth.

As shown in fig. 1-2, a plurality of reinforcing ribs 121 are disposed on the circumferential inner side of the stator bushing 12, notches 122 for the wire set to pass through are disposed on the reinforcing ribs 121, the protection circuit arrangement portion 22 is disposed above the notches 122 on the hall plate 2 and connected to the wire set, and by the above-mentioned position arrangement of the protection circuit arrangement portion, the coil can be ensured to be directly connected to the protection circuit arrangement portion, the length required for coil connection can be shortened to the maximum extent, and the influence on the rotation of the motor due to the random winding of the wire ends can be avoided, and the winding wire ends can be covered at the same time, so that the random winding and disorder of the wire ends can be avoided; stator bush 12 outside is equipped with at least one spacing groove 123, hall plate 2 and insulation board 3's circumference inboard all is equipped with the spacing convex part 23 with spacing groove 123 matched with, through the setting of above-mentioned spacing groove and spacing convex part, so as to fix a position stator bush, avoid stator bush to rotate, can fix a position hall plate and insulation board simultaneously, avoid hall plate and insulation board skew, strengthen the stability of hall plate and insulation board, the spacing groove remains the fit with spacing convex part throughout, when the motor shaft rotates, when the motor shaft rotates, stator bush and stator core and insulation board all receive spacing thereby avoid the rotation of stator bush and stator core and insulation board, the coil end of a thread wears out from the breach, then fix on the circuit board insulated strip, then draw forth the coil by the electric wire that protection circuit arranged the portion.

Claims

1. The utility model provides a contactless distribution car driving motor stator structure, includes stator core (1), and stator core's excircle is formed with radial stator tooth (11), its characterized in that: a stator bushing (12) is arranged on the inner side of the stator core (1), an insulating plate (3) is arranged at one end of the stator core (1), a Hall plate (2) is arranged at the other end of the stator core (1), radial insulating strips (21) are arranged on the outer circle of the insulating plate (3) and the outer circle of the Hall plate (2), the insulating strips (21) are respectively covered on the surfaces of the stator teeth (11) corresponding to the two end faces of the stator core (1), and an inward-protruding Hall installation part (22) for arranging Hall elements is formed on the inner circle of the Hall plate (2); the circumference inboard of stator bush (12) is equipped with a plurality of strengthening ribs (121), be equipped with breach (122) that are used for supplying the group to pass on strengthening rib (121), hall installation department (22) are located the top of breach (122) and are connected with the lead-out wire of winding on hall board (2), the stator bush (12) outside is equipped with at least one spacing groove (123), the circumference inboard of hall board (2) and insulation board (3) all is equipped with spacing convex part (23) with spacing groove (123) matched with.

2. The stator structure of a driving motor for a non-contact dispensing vehicle according to claim 1, wherein: the circumferential inner side of the Hall installation part (22) is arranged in an arc shape.

3. The stator structure of a driving motor for a non-contact dispensing vehicle according to claim 1, wherein: the insulating strips (21) are fixedly connected with the stator teeth (11) through glue and are wound together by coils.

4. The stator structure of a driving motor for a non-contact dispensing vehicle according to claim 1, wherein: and the circumferential inner sides of the insulating plate (3) and the stator core (1) are coaxially provided with positioning grooves (31) for positioning the initial positions of the coil winding.

5. The structure of a driving motor stator for a non-contact dispensing vehicle according to claim 1 or 4, wherein: the end part of the stator tooth (11) is provided with a plurality of placing grooves (111) for placing Hall elements, and the end parts of the insulating strips (21) are connected with the Hall elements.