CN214205197U

CN214205197U - Inner rotor motor structure with high protection level of controller

Info

Publication number: CN214205197U
Application number: CN202120125712.1U
Authority: CN
Inventors: 邓伟; 姚胜杰; 盛强
Original assignee: Hangzhou Dunli Electric Appliances Co ltd; Hangzhou Dunli Fan Co ltd
Current assignee: Hangzhou Dunli Electric Appliances Co ltd; Hangzhou Dunli Fan Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-09-14
Anticipated expiration: 2031-01-18

Abstract

The utility model discloses a high protection level's of band control ware inner rotor motor structure, including motor cabinet, controller, inner rotor and back lid, the inner rotor is installed in the motor cabinet, and the motor cabinet is connected with the cooperation of back lid, and the controller intercommunication has inside lead wire of motor and power lead wire, and the back lid outside is equipped with automatically controlled lid, covers after and lies in installation controller between back lid and automatically controlled lid, all fills the casting glue on the exposed electric conductor of controller. The utility model discloses the effectual waterproof, dustproof difficult problem of inner rotor motor of having solved has realized easy operation, function such as the protecting effect is good.

Description

Inner rotor motor structure with high protection level of controller

Technical Field

The utility model relates to an inner rotor motor technical field especially relates to an inner rotor motor structure of high protection level of band control ware.

Background

The motor for the heating and ventilation fan is mostly an inner rotor self-cooling type motor or an outer rotor motor.

The inner rotor is from fan cooling formula motor, and the motor generally has the screen panel, from fan cooling fan, though the motor protection level generally marks IP54 or IP55, because the screen panel can only accomplish IP23, so in the application environment that catkin, solid particle are more, the protection level has obvious defect, and this type of motor is bulky, the installation is unchangeable.

The outer rotor motor has the advantages of small volume and high power density, and is widely applied to the industry of heating and ventilating fans, but the protection grade is always a great problem because a 'dynamic and static gap' exists between a stator and a rotor of the outer rotor motor.

The prior motor only aims at the protection of a motor body, but due to the rapid development of the power electronic industry, the permanent magnet synchronous or brushless direct current motor with the controller is more and more concerned by people due to the advantages of high efficiency, high power density, stepless speed regulation and the like. The problem that brings along is that because the controller is numerous because components and parts, module stitch, inductance coils and the like are all electrified bodies, the controller protection becomes a new difficult problem.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses an inner rotor motor structure of high protection level of band control ware.

The utility model adopts the following technical scheme:

the utility model provides a take high protection level's of controller inner rotor motor structure, includes motor cabinet, controller, inner rotor and back lid, and the inner rotor is installed in the motor cabinet, and the motor cabinet is connected with the cooperation of back lid, and the controller intercommunication has inside lead wire of motor and power lead wire, and the back lid outside is equipped with automatically controlled lid, and the back is covered and is located back lid and automatically controlled lid installation controller within a definite time, and the embedding glue is all filled on the exposed electric conductor of controller. The controller has the functions of electronically controlling brushless phase commutation, receiving communication and the like, and the power supply introduced into the controller can be various power supplies such as single-phase 220V alternating current, three-phase 380V alternating current, direct current 48V and the like according to application scenes. In an application environment with extremely high protection level requirements, the exposed electric conductor of the controller is completely sealed and is not directly contacted with air, and water vapor or even a small amount of water is accumulated, so that the normal operation of the controller can be ensured.

Preferably, a framework oil seal is arranged on the inner side of the shaft extension end of the motor base, and a shaft surface oil seal is arranged on the outer side of the shaft extension end of the motor base. The framework oil seal and the shaft surface oil seal are both arranged at the shaft extension end of the motor, the framework oil seal is arranged conventionally, the shaft surface oil seal is arranged selectively, and particularly when the shaft head is installed downwards, the shaft surface oil seal can be cancelled.

Preferably, the motor base is matched with the rear cover through a seam allowance, and a matching surface is coated with a sealant. The motor base and the rear cover have higher requirements on the machining precision and are in transition fit with IT8 or below.

Preferably, a box sealing ring is arranged on the matching surface of the rear cover and the electric control box cover.

Preferably, the rear cover is provided with an outgoing line sealing ring, and a lead wire inside the motor is communicated with the controller through the outgoing line sealing ring. The rear cover can prevent the lead wires from being scratched and can play a role in sealing.

Preferably, the rear cover is provided with a locking joint, and the power lead wire is communicated with the controller through the locking joint. The protection level of the locking joint can reach IP68, and after the power lead wire is installed, the internal space of the rear cover can be completely isolated from outside water.

Preferably, the material of the cartridge seal ring is rubber. The box sealing ring is made of ageing-resistant and corrosion-resistant rubber material.

The utility model has the advantages that: (1) compared with the conventional motor, the motor has weak protection at the shaft extension position of the motor base, the utility model is additionally provided with the shaft surface oil seal besides the framework oil seal, thereby having double protection functions; (2) the controller and motor body are sealed through being qualified for the next round of competitions sealing washer and casting glue, both separate motor body and controller completely, ensure that steam, dust do not follow the back lid space at motor infiltration controller place, and after the whole pouring of simultaneous control ware electric conductor was sealed, even be afraid of behind other sealed measures inefficacy, also can bear steam, dust erosion, ensure that the controller can normal operating, through the utility model discloses make motor body, controller homoenergetic more safe and reliable operation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of an internal structure of the present invention;

in the figure: the device comprises a framework oil seal, a shaft surface oil seal, a motor base, a rear cover, a box sealing ring, an electric control box cover, a wire outlet sealing ring, a pouring sealant, a controller, a locking joint and a power lead wire, wherein the framework oil seal is 1, the shaft surface oil seal is 2, the motor base is 3, the rear cover is 4, the box sealing ring is 5, the electric control box cover is 6, the wire outlet sealing ring is 7, the pouring sealant is 8, the controller is 9, the locking joint is 10, and the power lead wire is 11.

Detailed Description

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example (b): as shown in attached figure 1 and attached figure 2, a take high protection level's of controller inner rotor motor structure, including motor cabinet 3, controller 9, inner rotor and back lid 4, the inner rotor is installed in the motor cabinet, motor cabinet and back lid cooperation are connected, the controller intercommunication has inside lead wire of motor and power lead wire 11, the back lid outside is equipped with automatically controlled lid 6, back is covered and is located back lid and automatically controlled lid installation controller within a definite time, all fill casting glue 8 on the exposed electric conductor of controller, a skeleton oil blanket 1 is equipped with on the axle extension end inboard of motor cabinet, axial plane oil blanket 2 is equipped with in the outside.

The motor base is matched with the rear cover through a spigot, and the matching surface is coated with sealant. The matching surface of the rear cover and the electric control box cover is provided with a box sealing ring 5. The box sealing ring is made of ageing-resistant and corrosion-resistant rubber material. And an outlet sealing ring 7 is arranged on the rear cover, and a lead wire inside the motor is communicated with the controller through the outlet sealing ring. The rear cover is provided with a locking joint 10, and a power lead wire is communicated with the controller through the locking joint.

Compared with the conventional motor which is weak in protection at the shaft extension position of the motor base, the utility model is additionally provided with the shaft surface oil seal besides the framework oil seal, thereby having double protection functions; the controller is sealed through sealing washer and casting glue of being qualified for the next round of competitions with motor body, both separated motor body and controller completely, ensures that steam, dust do not follow the back lid space at motor infiltration controller place, and the whole back of encapsulating of simultaneous control ware electric conductor is even afraid of behind other sealing measures inefficacy, also can bear steam, dust erosion, ensures that the controller can normal operating, through the utility model discloses make motor body, controller homoenergetic more safe and reliable operation. The utility model discloses the effectual waterproof, dustproof difficult problem of inner rotor motor of having solved has realized easy operation, function such as the protecting effect is good.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims

1. The utility model provides a take high protection level's of controller inner rotor motor structure, includes motor cabinet, controller, inner rotor and back lid, and the inner rotor is installed in the motor cabinet, and the motor cabinet is connected with the cooperation of back lid, and the controller intercommunication has inside lead wire of motor and power lead wire, characterized by, the back lid outside is equipped with automatically controlled lid, and the back is covered and is located back lid and automatically controlled lid between installation controller, all packing casting glue on the exposed electric conductor of controller.

2. The structure of claim 1, wherein a skeleton oil seal is installed on the inner side of the shaft extension end of the motor base, and a shaft face oil seal is installed on the outer side of the shaft extension end of the motor base.

3. The inner rotor motor structure with the controller and the high protection level as claimed in claim 1, wherein the motor base is matched with the rear cover through a seam allowance, and a matching surface is coated with a sealant.

4. The structure of claim 1, wherein a box seal ring is mounted on the mating surface of the back cover and the lid of the electric control box.

5. The structure of claim 1, wherein the rear cover is provided with an outlet sealing ring, and the internal lead wire of the motor is connected to the controller through the outlet sealing ring.

6. The structure of claim 1, wherein the rear cover has a locking connector, and the power lead wire is connected to the controller through the locking connector.

7. The inner rotor motor structure with high protection level of controller of claim 4, wherein the box seal ring is a rubber box seal ring.