Waterproof three-phase motor convenient to install

By adding mounting seats and lead devices to the waterproof rear end cover, the problems of motor installation difficulties and water inlet corrosion in stage lighting equipment are solved, and stable installation and waterproofing effects are achieved.

CN223141699UActive Publication Date: 2025-07-22GUANGZHOU YOUTIAN PRECISION MOTOR CO LTD
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Patent Information

Application Number
CN202422058052.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-07-22
Estimated Expiration
2034-08-23

AI Technical Summary

Technical Problem

The installation space of stage lighting equipment is limited. The waterproof terminal design of existing three-phase motors causes the motor to be unable to be installed normally, and it is prone to poor wiring due to pulling the cables, and it is prone to water corrosion in the stage environment.

Method used

Add a mount and lead device for easy wiring to the waterproof rear end cover, cancel the original waterproof terminal, adopt a single high-temperature wire outgoing method, and combine the waterproof fixing block and lead sleeve to ensure the wire fixing and waterproof effect.

Benefits of technology

It realizes stable installation of the motor in equipment with limited space, avoids poor wiring, improves waterproof performance, and prevents water inlet corrosion of the motor.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223141699U_ABST
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Abstract

The utility model discloses a waterproof three-phase motor convenient to install, which comprises a motor main body and a motor shell, the motor main body is arranged in the motor shell, and the motor shell comprises a main machine shell, a front end cover and a waterproof rear end cover; the waterproof rear end cover comprises a rear end bottom cover, a rear cover waterproof gasket and a rear end cover plate, a mounting base is integrally arranged on the side, away from the main case, of the rear end bottom cover, the rear end cover plate covers the top of the mounting base and is fixed through screws, and the rear cover waterproof gasket is arranged between the rear end cover plate and the mounting base; according to the utility model, the mounting seat convenient for wire passing is additionally arranged on the waterproof rear end cover, so that a part wire of the motor main body can be led out from the mounting seat, and a waterproof wiring terminal designed on the surface of the original motor shell is removed, so that the surface of the motor becomes flat, the occupied space is reduced, and the motor can be better mounted in equipment with limited space.
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Description

Technical Field

[0001] The utility model belongs to the technical field of motor waterproofing, and particularly relates to a waterproof three-phase motor that is easy to install, which can be applied to the motion control of stage lighting equipment. Background Art

[0002] With the highly developed economy, the demand for motors is increasing, and their application scope is also expanding accordingly. Among them, for some requirements, stage lighting equipment has added a lot of motion control, and key components for such control, such as drive motors for horizontal and vertical rotation, tend to use three-phase motors.

[0003] However, the stage lighting equipment is gradually designed more precisely, and the positions inside it where motors can be placed have been reduced, with limited installation space. Due to the relatively large waterproof terminal blocks designed on the outer surface of the original motor, the motor cannot be well accommodated therein. Moreover, this design usually cooperates with ordinary cable wires. When in use, most users habitually pick up the motor by pulling up the cable wire, and such a picking-up method is likely to drag out the not very firm cable wire, resulting in poor wiring of the internal components of the motor and making the motor unable to work properly.

[0004] At the same time, in the stage environment, the lighting equipment needs to run for a long time and may be exposed to various environments, including accidentally splashed rainwater, other liquids or solvents, etc. If the lighting equipment set on the stage top is accidentally splashed with rainwater, other liquids or solvents, etc., it may cause the motors for its motion control to get water, easily causing the internal parts of the motors to be corroded and leading to malfunctions and unable to work properly. Summary of the Utility Model

[0005] In order to solve the problems occurring in the above background art, the main purpose of the utility model is to provide a waterproof three-phase motor that is easy to install. By adding a mounting seat design for facilitating wire passing on the waterproof rear end cover, the component wires of the motor body can be led out from the mounting seat, removing the waterproof terminal blocks designed on the outer surface of the original motor housing, making the motor surface flat and reducing the occupied space, and enabling it to be better installed in the stage lighting equipment with limited space.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A waterproof three-phase motor that is easy to install, comprising a motor main body and a motor housing. The motor main body is installed in the motor housing. The motor housing includes a main housing, a front end cover, and a waterproof rear end cover. The motor main body is installed in the main housing. The front end cover and the waterproof rear end cover are respectively covered on the front and rear sides of the main housing to form an integral structure. A first waterproof gasket is provided between the front end cover and the main housing, and a second waterproof gasket is provided between the waterproof rear end cover and the main housing. The waterproof rear end cover includes a rear bottom cover, a rear cover waterproof gasket, and a rear end cover plate. An installation seat is integrally provided on one side of the rear bottom cover away from the main housing. The rear end cover plate covers the top of the installation seat and is fixed by screws. The rear cover waterproof gasket is provided between the rear end cover plate and the installation seat.

[0008] Preferably, a waterproof wire groove is provided on one side of the installation seat, and a number of corresponding notches are respectively provided on the front and rear side walls of the waterproof wire groove.

[0009] Preferably, symmetrically arranged first waterproof fixing blocks and second waterproof fixing blocks are placed inside the waterproof wire groove. A number of wire grooves are provided at the bottom of the first waterproof fixing block and the top of the second waterproof fixing block.

[0010] Preferably, waterproof glue is smeared on the inner side of the rear side wall of the waterproof wire groove.

[0011] Preferably, the top of the installation seat is open to form an installation groove, and a through hole is provided at the center of the rear bottom cover located inside the installation seat and is communicated with the installation groove.

[0012] Preferably, the rear bottom cover further includes a wire leading device, and the wire leading device is provided on the side wall of the rear bottom cover.

[0013] Preferably, the wire leading device includes a number of waterproof wire sleeves, a waterproof pressing shell, and fixing screws. The waterproof pressing shell is fixed to the side wall of the rear bottom cover by the fixing screws, and the number of waterproof wire sleeves are spaced between the waterproof pressing shell and the side wall of the rear bottom cover.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] (1) By providing a waterproof wire groove in the waterproof rear end cover that facilitates the wiring of components in the motor main body, when adopting this motor structure, the original way of leading out a bundle of ordinary cable wires can be changed to the way of leading out a number of single high-temperature wires, removing the waterproof terminal designed on the surface of the original motor housing, making the motor surface flat and reducing the occupied space, and it can be better installed in equipment with limited space. At the same time, it can also prevent users from picking up the motor by pulling up the original ordinary cable wire, avoiding the problem of poor wiring of internal components of the motor caused by the wire being pulled away.

[0016] (2) In the waterproof wire groove of the present utility model, symmetrically arranged first waterproof fixing blocks and second waterproof fixing blocks are placed. A plurality of wire grooves are provided at the bottom of the first waterproof fixing block and the top of the second waterproof fixing block, so that the wires leading out the components inside the motor can be better fixed, and a certain waterproof effect can also be achieved.

[0017] (3) A plurality of lead holes for the components inside the motor except the encoder to lead out wires are provided on the side wall of the rear end bottom cover of the present utility model. In cooperation with the further included lead device, it can play a role in leading and fixing the wires, preventing the wires leading out the components inside the motor from being pulled away. Description of the Drawings

[0018] Figure 1 is the side view schematic diagram in the embodiment of the present utility model;

[0019] Figure 2 is the front view schematic diagram of the waterproof rear end cover in the embodiment of the present utility model;

[0020] Figure 3 is the top view disassembled schematic diagram of the waterproof rear end cover in the embodiment of the present utility model;

[0021] Figure 4 is the structural schematic diagram of the waterproof fixing block in the embodiment of the present utility model;

[0022] Figure 5 is the structural schematic diagram including the lead device in other embodiments of the present utility model;

[0023] Figure 6 is the structural sectional view of the lead device in other embodiments of the present utility model;

[0024] Figure 7 is the structural sectional view of the waterproof lead sleeve in other embodiments of the present utility model.

[0025] In the figure, 1 is the main housing, 2 is the front end cover, 3 is the waterproof rear end cover, 31 is the rear end bottom cover, 311 is the through hole, 32 is the rear cover waterproof gasket, 33 is the rear end cover plate, 34 is the mounting seat, 35 is the waterproof wire groove, 351 is the groove opening, 36 is the first waterproof fixing block, 37 is the second waterproof fixing block, 4 is the first waterproof gasket, 5 is the second waterproof gasket, 6 is the rotating shaft, 7 is the lead device, 71 is the waterproof lead sleeve, 72 is the waterproof pressure shell, and 73 is the fixing screw. Detailed Embodiment

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] The following will further describe the present application in detail in conjunction with the attached Figures 1-7 This application will be further described in detail.

[0029] An easily installable waterproof three-phase motor is disclosed in the embodiments of the present utility model, which includes a motor main body and a motor housing. The motor main body is installed in the motor housing. The motor housing includes a main housing 1, a front end cover 2, and a waterproof rear end cover 3. The motor main body is installed in the main housing 1. The front end cover 2 and the waterproof rear end cover 3 are respectively covered on the front and rear sides of the main housing 1 to form an integral structure. A first waterproof gasket 4 is provided between the front end cover 2 and the main housing 1, and a second waterproof gasket 5 is provided between the waterproof rear end cover 3 and the main housing 1, which can further improve the waterproof performance of the motor. The waterproof rear end cover 3 includes a rear end bottom cover 31, a rear cover waterproof gasket 32, and a rear end cover plate 33. An installation seat 34 is integrally provided on one side of the rear end bottom cover 31 away from the main housing 1. The rear end cover plate 33 covers the top of the installation seat 34 and is fixed by screws. The rear cover waterproof gasket 32 is provided between the rear end cover plate 33 and the installation seat 34.

[0030] Among them, the motor main body includes a stator, a rotor, a rotating shaft 6, and an encoder. The stator, the rotor, and the rotating shaft 6 are all installed in the main housing 1. The encoder is provided in the installation seat 34 of the waterproof rear end cover 3. One end of the rotating shaft 6 penetrates through the front end cover 2 and extends outwards. The front end cover 2 adopts a traditional oil seal waterproof design. The other end of the rotating shaft 6 passes through the through hole 311 of the waterproof rear end cover 3 and is connected to the encoder.

[0031] Specifically, the shape of the rear cover waterproof gasket 32 is adapted to the shape of the top edge of the installation seat 34, and the outer shape of the rear end cover plate 33 is adapted to the outer shape of the installation seat 34.

[0032] One side of the mounting base 34 is provided with a waterproof wire groove 35. On the front and rear side walls of the waterproof wire groove 35, a number of corresponding notches 351 are respectively provided. The notches 351 can be used for the wires of the components inside the motor to pass through. When adopting this motor structure, the original way of leading out a bundle of ordinary cable wires can be changed to the way of leading out a number of single high-temperature wires, and the waterproof terminal designed on the surface of the original motor shell is removed, making the motor surface flat and reducing the occupied space. It can be better installed in equipment with limited space. At the same time, it can also prevent users from picking up the motor by pulling up the original ordinary cable wire, avoiding the problem of poor wiring of the components inside the motor caused by the wire being pulled away.

[0033] Referring to Figure 4 , symmetrically arranged first waterproof fixing block 36 and second waterproof fixing block 37 are placed inside the waterproof wire groove 35. A number of wire grooves are provided at the bottom of the first waterproof fixing block 36 and the top of the second waterproof fixing block 37. The a number of wire grooves provided in the first waterproof fixing block 36 and the second waterproof fixing block 37 are symmetrically arranged. When they overlap, they will form a channel adapted to the wire, so as to better fix the wires of the components inside the motor and also play a certain waterproof role.

[0034] Specifically, after the wires of the components inside the motor are led out, waterproof glue is smeared on the inner side of the rear side wall of the waterproof wire groove 35, so as to further block the water vapor in the waterproof wire groove 35 and prevent the water vapor from entering the mounting base 34 and eroding the components inside the motor.

[0035] The top of the mounting base 34 is open to form a mounting groove, which can be used to accommodate an encoder. A through hole 311 is provided at the center of the inner part of the rear end bottom cover 31 and is connected to the mounting groove. It is convenient for the wires of the components inside the motor to lead out, and at the same time, the rear end of the rotating shaft 6 in the motor main body can pass through the through hole 311 and be connected to the encoder.

[0036] Referring to Figures 5-7 , in other embodiments of the present invention, the rear end bottom cover 31 further includes a wire leading device 7. The wire leading device 7 is arranged on the side wall of the rear end bottom cover 31. The wire leading device 7 includes a number of waterproof wire leading sleeves 71, a waterproof pressing shell 72 and fixing screws 73. The waterproof pressing shell 72 is fixed to the side wall of the rear end bottom cover 31 through the fixing screws 73. The a number of waterproof wire leading sleeves 71 are arranged at intervals between the waterproof pressing shell 72 and the side wall of the rear end bottom cover 31.

[0037] Specifically, several lead holes for the components inside the motor (except the encoder) to lead out wires are provided on one side wall of the rear end bottom cover 31. In cooperation with the further included lead wire device, it can play a role in leading and fixing the wires, preventing the wires led out by the components inside the motor from being pulled away. Moreover, several through holes with a narrow upper part and a wide lower part are provided on the waterproof pressure shell 72. The diameter of the bottom end of the through hole is adapted to the diameter of the top end of the lead wire sleeve, and the diameter of its top end is smaller than the diameter of the top end of the lead wire sleeve.

[0038] The waterproof lead wire sleeve 71 is made of soft rubber material. A threaded structure is provided at the top end thereof, and the diameter of the bottom end thereof is smaller than the diameter of the lead hole.

[0039] When passing the wires, several wires pass through the lead holes and are correspondingly sleeved with the waterproof lead wire sleeves 71. The bottom end of the waterproof lead wire sleeve 71 is inserted into the lead hole. Before insertion, UV glue needs to be applied to better fix the wires and prevent water vapor from entering the rear end bottom cover 31 through the lead holes. Then, the wires sleeved with the waterproof lead wire sleeves 71 pass through the through holes of the waterproof pressure shell 72 at the corresponding positions. Finally, the waterproof pressure shell 72 is fixed to the waterproof base by using the fixing screws 73. At this time, several waterproof lead wire sleeves 71 are squeezed between the through holes of the waterproof pressure shell 72 and the lead holes of the rear end bottom cover 31, and its threaded structure is in a compacted state.

[0040] The above has made a detailed description of the present utility model. The above is only the preferred embodiment of the present utility model, and it cannot limit the scope of implementation of the present utility model. That is, all equal changes and modifications made according to the scope of this application should still fall within the scope covered by the present utility model.

Claims

1. A waterproof three-phase motor that is easy to install, characterized in that: It includes a motor body and a motor housing. The motor body is installed in the motor housing. The motor housing includes a main housing, a front end cover and a waterproof rear end cover. The motor body is installed in the main housing. The front end cover and the waterproof rear end cover are respectively covered on the front and rear sides of the main housing to form an integral structure. A first waterproof gasket is provided between the front end cover and the main housing, and a second waterproof gasket is provided between the waterproof rear end cover and the main housing. The waterproof rear end cover includes a rear bottom cover, a rear cover waterproof gasket and a rear end cover plate. An installation seat is integrally provided on one side of the rear bottom cover away from the main housing. The rear end cover plate covers the top of the installation seat and is fixed by screws. The rear cover waterproof gasket is provided between the rear end cover plate and the installation seat.

2. The waterproof three-phase motor convenient for installation according to claim 1, characterized in that: A waterproof wire groove is provided on one side of the installation seat. A number of corresponding notches are respectively provided on the front and rear side walls of the waterproof wire groove.

3. The waterproof three-phase motor facilitating installation according to claim 2, wherein: A symmetrically arranged first waterproof fixing block and a second waterproof fixing block are placed inside the waterproof wire groove. A number of wire grooves are provided at the bottom of the first waterproof fixing block and the top of the second waterproof fixing block.

4. The waterproof three-phase motor that is easy to install according to claim 2, wherein: A waterproof glue is smeared on the inner side of the rear side wall of the waterproof wire groove.

5. The waterproof three-phase motor convenient for installation according to claim 1, characterized in that: The top of the installation seat is open to form an installation groove. A through hole is provided at the center of the rear bottom cover located inside the installation seat and is communicated with the installation groove.

6. The waterproof three-phase motor convenient for installation according to claim 1, characterized in that: The rear bottom cover further includes a lead wire device. The lead wire device is provided on the side wall of the rear bottom cover.

7. The waterproof three-phase motor facilitating installation according to claim 6, characterized in that: The lead wire device includes a number of waterproof lead wire sleeves, a waterproof pressing shell and fixing screws. The waterproof pressing shell is fixed to the side wall of the rear bottom cover by the fixing screws. The number of waterproof lead wire sleeves are spaced between the waterproof pressing shell and the side wall of the rear bottom cover.