CN218829414U

CN218829414U - Rear-mounted motor wiring structure

Info

Publication number: CN218829414U
Application number: CN202222542145.7U
Authority: CN
Inventors: 文国锋; 丁李宁; 刘平
Original assignee: Zhuzhou Gear Co Ltd
Current assignee: Zhuzhou Gear Co Ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-04-07
Anticipated expiration: 2032-09-26

Abstract

Rear-mounted motor wiring structure, including connecting at the terminal box of motor casing rear end and with the sealed lid of terminal box seal, its characterized in that: the junction box and the motor shell are coaxial and integrally formed, a secondary wiring component is arranged in the junction box, and a motor power line and an external power supply connecting line respectively extend into the junction box and are connected through the secondary wiring component. The utility model provides a rear-mounted motor wiring structure, terminal box and the coaxial and integrated into one piece of motor casing make the terminal box setting not increase motor casing's radial height in the motor casing rear side, reduce the space occupancy, avoid producing between motor casing and the terminal box in the use not hard up or clearance simultaneously, improve structural reliability and water-proof effects, simplify motor casing structure, the secondary wiring subassembly that motor power cord and external power supply line pass through in the terminal box is connected, the convenience of improvement wiring, be convenient for detect and maintain.

Description

Rear-mounted motor wiring structure

Technical Field

The utility model relates to a rear-mounted motor wiring structure for the wiring of motor.

Background

The motor winding needs to be communicated with an external power supply, a junction box is arranged on a motor shell in order to be connected with the external power supply, the junction box is generally arranged on the side face of the motor, the size of the junction box is large, the occupied space is large, the radial height of the motor is increased, and the difficulty meets the installation requirement of a compact space. The junction box generally comprises parts such as bottom box, lid, wiring mouth, and waterproof performance is usually considered when designing motor junction box, avoids electrocution electric leakage. At present, in order to prevent water for the motor junction box, a cable fixing head is usually additionally arranged on a box cover, so that water is blocked at a cable connection position, and a sealing ring is clamped at a position where a bottom box and the box cover are abutted to seal the water. The reason that the waterproof effect of the existing junction box for the motor is not ideal is that: because the motor junction box is arranged on the motor shell, the possibility that screws on the motor junction box are loosened under the influence of motor vibration directly causes the position gap where a bottom box and a box cover are abutted in the existing junction box for the motor to be enlarged, so that the waterproof effect is unreliable; simultaneously because the motor terminal box receives the influence of the heat conduction of motor and the influence that junction box wiring resistance generates heat, make the terminal box temperature higher, terminal box and lid material all are PPO at the bottom of the terminal box, end box, lid and sealing washer form a confined space, along with the rising of temperature, the empty gas volume inflation in the confined space, atmospheric pressure increases, make end box, lid mechanical strength diminish, thereby make terminal box at the bottom of the terminal box or lid take place the deformation, so then greatly reduced the leakproofness of terminal box, lead to steam or dust to get into.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rear-mounted motor wiring structure, terminal box and coaxial and integrated into one piece of motor casing, make the terminal box setting not increase motor casing's radial height in the motor casing rear side, reduce the space occupancy, avoid producing between motor casing and the terminal box not hard up or clearance in the use simultaneously, improve structural reliability and water-proof effects, sealed lid is sealed with the terminal box and is about to whole motor casing rear end sealed, save the casing back lid, simplify motor casing structure, the secondary wiring subassembly in the terminal box is passed through to motor power cord and the external power supply line of connecting external power supply is connected, improve the convenience of wiring, be convenient for detect and maintain.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

rear-mounted motor wiring structure, including connecting at the terminal box of motor casing rear end and with the sealed lid of terminal box seal, its characterized in that: the junction box is coaxial and integrated with the motor shell, a secondary wiring assembly is arranged in the junction box, and a motor power line and an external power supply connecting line respectively extend into the junction box and are connected through the secondary wiring assembly.

Preferably, the junction box is internally coaxially fixed with a support, the secondary wiring assembly is fixed on the support, an outlet gap for a power line of the motor to extend into is formed between the support and the inner wall of the junction box, and the angle sensor in the motor extends into the junction box and is fixed with the support.

Preferably, the support comprises an installation ring and a connecting lug integrally formed on the periphery of the installation ring, the outer diameter of the installation ring is smaller than the inner diameter of the junction box, the connecting lug is fixed with the junction box through a bolt, an outlet gap is formed between the installation ring and the inner wall of the junction box, and the secondary wiring assembly is installed on the installation ring.

Preferably, the quantity of secondary wiring subassembly be a plurality of, and set up in a row on the support, the secondary wiring subassembly includes the double-screw bolt of vertical fixation on the support, lower wiring nose of being connected with the motor power cord, compress tightly the lower gland nut of lower wiring nose, the last wiring nose of being connected with external power cord and the last gland nut who compresses tightly the upper wiring nose, the lower wiring nose, gland nut down, the last wiring nose overlaps on the double-screw bolt from supreme down in proper order with last gland nut, down gland nut and double-screw bolt screw-thread fit compress tightly the lower wiring nose, it compresses tightly the last wiring nose with double-screw bolt screw-thread fit to go up gland nut.

Preferably, the adjacent secondary wiring assemblies are separated by partition plates, and the partition plates are vertically arranged on the bracket.

Preferably, the junction box is provided with a first cable fixing head for an external power supply connecting wire to extend into and a second cable fixing head for an angle sensor connecting wire to extend out.

The utility model has the advantages that:

this real neotype rear-mounted motor wiring structure, terminal box and coaxial and integrated into one piece of motor casing, make the terminal box setting not increase motor casing's radial height in the motor casing rear side, reduce the space occupancy, avoid producing between motor casing and the terminal box in the use not hard up or clearance simultaneously, improve structural reliability and water-proof effects, sealed lid is sealed with the terminal box and is about to whole motor casing rear end sealed, save the casing back lid, simplify motor casing structure, the secondary wiring subassembly in the terminal box is passed through with the external power supply line of connecting external power supply and is connected to the motor power supply line, improve the convenience of wiring, be convenient for detect and maintain.

The secondary wiring assembly is fixed on the support, the angle sensor in the motor extends into the junction box to be fixed with the support, and the angle sensor in the motor and the secondary wiring assembly share the support for positioning, so that the internal structure of the motor is simplified, and the compactness of the wiring structure of the motor is improved.

Drawings

Fig. 1 is a schematic diagram of the rear-mounted motor wiring structure of the present invention disposed at the rear end of the motor housing.

Fig. 2 is a schematic view of the inside of the connection box when the sealing cover is opened.

Fig. 3 is a partially enlarged view of fig. 2.

Detailed Description

The following describes embodiments of the present invention in detail with reference to fig. 1 to 3.

Rear-mounted motor wiring structure, including connecting at the terminal box 2 of 1 rear end of motor casing and with 2 sealed 3 of terminal box, its characterized in that: the junction box 2 and the motor shell 1 are coaxial and integrally formed, a secondary wiring component 4 is arranged in the junction box 2, and a motor power line and an external power supply connecting line respectively extend into the junction box 2 and are connected through the secondary wiring component 4.

More than rear-mounted motor wiring structure, terminal box 2 and 1 coaxial and integrated into one piece of motor casing, make terminal box 2 set up the radial height that does not increase motor casing in 1 rear side of motor casing, reduce the space occupancy, avoid producing not hard up or clearance between motor casing 1 and the terminal box 2 in the use simultaneously, improve structural reliability and water-proof effects, sealed lid 3 is sealed 2 sealing of terminal box and is about to whole motor casing 1 rear end and sealed, save the casing back cover, simplify motor casing 1 structure, the motor power cord passes through the secondary wiring subassembly 4 in the terminal box 2 with the external power supply line of connecting external power supply and connects, improve the convenience of wiring, be convenient for detect and maintain.

Preferably, the bracket 5 is coaxially fixed in the junction box 2, the secondary wiring component 4 is fixed on the bracket 5, an outlet gap 6 into which a power line of the motor extends is formed between the bracket 5 and the inner wall of the junction box 2, and an angle sensor 7 in the motor extends into the junction box 2 and is fixed with the bracket 5. The wire outlet gap 6 is used for enabling a power wire of the motor to extend into the junction box 2 from the inside of the motor to be connected with the secondary wiring assembly 4, the angle sensor 7 is located on the inner side of the support 5 and located through the support 5, the secondary wiring assembly 4 is located on the outer side of the support 5 and located through the support 5, the angle sensor 7 and the secondary wiring assembly 4 in the motor are located by sharing the support 5, the internal structure of the motor is simplified, and the compactness of the wiring structure of the motor is improved.

Preferably, the bracket 5 is composed of a mounting ring 51 and a connecting lug 52 integrally formed on the periphery of the mounting ring 51, the outer diameter of the mounting ring 51 is smaller than the inner diameter of the junction box 2, the connecting lug 52 is fixed with the junction box 2 through a bolt, a wire outlet gap 6 is formed between the mounting ring 51 and the inner wall of the junction box 2, and the secondary wiring assembly 4 is mounted on the mounting ring 51. The quantity of engaging lug 52 is a plurality of, at installation ring 51 periphery evenly distributed, sets up the connecting block that corresponds with engaging lug 52 on 2 inner walls of mounting box, and it is fixed with connecting block with engaging lug 52 through the bolt, can realize the location of support 5 in terminal box 2, fixes a position support 5 in mounting box 2, forms the play space 6 that is qualified for the next round of competitions that power supply machine power cord stretched into between 2 inner walls of installation ring 51 and terminal box, guarantees that motor power cord stretches out smoothly.

Preferably, the number of secondary wiring subassembly 4 be a plurality of, and set up in a row on support 5, secondary wiring subassembly 4 includes stud 41 of vertical fixation on support 5, lower wiring nose 42 of being connected with the motor power cord, compress tightly lower gland nut 43 of lower wiring nose 42, the last wiring nose 44 of being connected with external power cord and the last gland nut 45 of compressing tightly upper wiring nose 44, lower wiring nose 42, lower gland nut 43, last wiring nose 44 and last gland nut 45 cover on stud 41 from the bottom up in proper order, lower gland nut 43 compresses tightly wiring nose 42 with stud 41 screw-thread fit down, last gland nut 45 compresses tightly upper wiring nose 44 with stud 41 screw-thread fit. The motor power line stretches into the junction box 2 from the wire outlet gap 6 and is in compression connection with the lower wiring nose 42, the external power supply wiring stretches into the junction box 2 from the outside and is in compression connection with the upper wiring nose 44, the lower wiring nose 42 is compressed and positioned by the lower compression nut 43, the upper wiring nose 44 is compressed and positioned by the upper compression nut 45, connection of the motor power line and the external power supply wiring is achieved, wiring is convenient and simple, and implementation is easy.

Preferably, the adjacent secondary wiring modules 4 are separated by a partition plate 7, and the partition plate 7 is vertically arranged on the bracket 5. The division board 7 separates adjacent secondary wiring subassembly 4, prevents adjacent secondary wiring subassembly 4 dislocation wiring, guarantees that the motor power cord rather than corresponding with external power source line one-to-one be connected in order.

Preferably, the junction box 2 is provided with a first cable fixing head 10 for an external power supply connecting wire to extend into and a second cable fixing head 11 for an angle sensor connecting wire to extend out, and the first cable fixing head 10 and the second cable fixing head 11 seal the wire passing position to ensure the waterproof reliability of the junction box 2.

The technical solutions of the embodiments of the present invention are completely described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Claims

1. Rear-mounted motor wiring structure, including connecting the terminal box at motor casing rear end and with the sealed lid of terminal box seal, its characterized in that: the junction box is coaxial and integrated with the motor shell, a secondary wiring assembly is arranged in the junction box, and a motor power line and an external power supply connecting line respectively extend into the junction box and are connected through the secondary wiring assembly.

2. The rear motor wiring structure according to claim 1, characterized in that: the junction box is internally and coaxially fixed with a support, the secondary wiring assembly is fixed on the support, an outlet wire gap for a power line of the motor to extend into is formed between the support and the inner wall of the junction box, and the angle sensor in the motor extends into the junction box and is fixed with the support.

3. The rear motor wiring structure according to claim 2, wherein: the support comprises an installation ring and a connecting lug which is integrally formed on the periphery of the installation ring, the outer diameter of the installation ring is smaller than the inner diameter of the junction box, the connecting lug is fixed with the junction box through a bolt, an outlet gap is formed between the installation ring and the inner wall of the junction box, and the secondary wiring assembly is arranged on the installation ring.

4. The rear motor wiring structure according to claim 2, wherein: the quantity of secondary wiring subassembly be a plurality of, and set up in a row on the support, the secondary wiring subassembly includes the double-screw bolt of vertical fixation on the support, the lower wiring nose of being connected with the motor power cord, compress tightly the lower gland nut of lower wiring nose, the last wiring nose of being connected with external power cord and the last gland nut who compresses tightly the upper wiring nose, the lower wiring nose, gland nut down, the last wiring nose and last gland nut from supreme cover in proper order on the double-screw bolt down, down gland nut and double-screw bolt screw-thread fit compress tightly the lower wiring nose, it compresses tightly with last wiring nose with double-screw bolt screw-thread fit to go up gland nut.

5. The rear motor wiring structure according to claim 4, wherein: the adjacent secondary wiring assemblies are separated by partition plates, and the partition plates are vertically arranged on the bracket.

6. The rear motor wiring structure according to claim 3, wherein: and a first cable fixing head for an external power supply connecting wire to extend into and a second cable fixing head for an angle sensor connecting wire to extend out are arranged on the junction box.