A wire protection mechanism for preventing water leakage of a motor wire

By designing an adjustable waterproof structure on the motor junction box, the problem that existing protective mechanisms cannot adapt to motor wires of different thicknesses is solved, achieving a tight fit between the motor wires and effective waterproofing.

CN224319144UActive Publication Date: 2026-06-02WUXI SANDA MOTOR TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI SANDA MOTOR TECH CO LTD
Filing Date
2025-05-12
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing waterproofing mechanisms for motor wiring are difficult to adapt flexibly to external wiring of motors with different thicknesses, resulting in poor waterproofing performance.

Method used

A waterproof structure including a junction box, connecting sleeve, limiting ring, inner and outer sleeves, and sealing ring is designed. The T-shaped sealing ring is expanded or contracted by sliding and rotating the sleeve to achieve a tight fit for the external wiring of motors of different thicknesses.

Benefits of technology

It effectively avoids waterproof gaps in the motor's external wiring, improves waterproof performance, and is suitable for various motor external wiring diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of wire protection mechanisms for preventing motor wire from leaking, relate to motor technical field, the utility model includes motor, wiring terminal, junction box and waterproof part, the utility model is connected when being to motor, first to one side, make outer sleeve slide relative to inner sleeve, while the guide ring in outer sleeve stirs T-shaped plate, while T-shaped plate drives groove plate to move in same direction, to drive T-shaped sealing ring expansion, so as to pass through inner sleeve with motor external wiring, when motor external wiring passes through the connecting sleeve fixedly installed on junction box, each wire is connected on corresponding wiring post, then inner sleeve is rotated to connecting sleeve, when limit ring promotes outer sleeve to move to another side, another guide ring in outer sleeve stirs T-shaped plate reverse movement, to drive T-shaped sealing ring shrink, until T-shaped sealing ring inner ring and motor external wiring closely adhere, avoid to appear waterproof gap.
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Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and in particular relates to a wire protection mechanism for preventing water leakage in motor wires. Background Technology

[0002] In today's industrial production and numerous daily applications, electric motors, as key power drive components, are virtually ubiquitous. From various production machines in large factories to household appliances such as air conditioners and washing machines, electric motors play a central role. With the development of technology, the application environments of electric motors are becoming increasingly complex and diverse. On the one hand, in outdoor scenarios, such as street light motor systems along urban roads, temporary power supply motors at construction sites, and motors for water conservancy monitoring equipment in the field, they are frequently subjected to direct erosion and immersion by rainwater. In some humid industrial production environments, electric motors also face unique waterproofing challenges.

[0003] From the perspective of the motor's electrical structure, depending on the type and functional requirements, the external wiring of the motor usually adopts the form of a multi-core cable, which is composed of multiple wires that perform different functions in an orderly combination, including live wire, neutral wire, and ground wire. This structural feature means that the diameter of the motor's external wiring is not fixed, but varies depending on the specific motor specifications and application scenarios. However, most existing wire protection mechanisms for preventing water leakage from motor wires are rigidly designed and difficult to flexibly adapt to motor wires of different thicknesses. The protection mechanism may not be able to fit tightly with the motor's external wiring, leaving waterproof gaps and affecting the waterproof effect. Utility Model Content

[0004] The purpose of this utility model is to provide a wire protection mechanism for preventing water leakage in motor wires, which solves the problem that existing wire protection mechanisms for preventing water leakage in motor wires cannot be applied to external wiring of motors of different thicknesses.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a wire protection mechanism for preventing water leakage in motor wires, including a motor and a terminal block. The feature is that a junction box is fixedly installed on the terminal block, and several wiring holes are opened through both sides of the junction box. Waterproof components are fixedly installed in the wiring holes.

[0007] The waterproof component includes a connecting sleeve that is fixedly connected to one of the wiring holes. A limit ring is fixedly connected to the peripheral side of the connecting sleeve, and an inner sleeve located at one end of the limit ring is threadedly connected to the outer peripheral side of the connecting sleeve.

[0008] The present invention is further configured such that a waterproof ring is fixedly connected to the circumferential side of the inner sleeve, and a first sealing groove is provided on the circumferential side of the waterproof ring, and a first sealing ring is embedded in the first sealing groove.

[0009] The present invention is further provided that a second sealing groove is provided on the circumferential side of the inner sleeve, and a second sealing ring is embedded in the second sealing groove.

[0010] The present invention is further configured such that the inner sleeve and the waterproof ring circumferential side are slidably fitted with the outer sleeve, and two guide rings are fixedly connected to the inner circumferential side of the outer sleeve.

[0011] The present invention is further configured such that the inner sleeve has a plurality of sliding grooves arranged in a circular array on its circumferential side surface, and a T-shaped plate located between two guide rings is slidably fitted in the sliding grooves.

[0012] The present invention is further configured such that a grooved plate is fixedly connected to one side of the T-shaped plate, and a T-shaped sealing ring is fixedly embedded in a plurality of the grooved plates.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, when wiring the motor, the outer sleeve is first moved to one side, causing it to slide relative to the inner sleeve. Simultaneously, a guide ring inside the outer sleeve moves the T-shaped plate, causing it to slide within a groove. The T-shaped plate also drives the grooved plates to move in the same direction, increasing the distance between the grooved plates. This expands the T-shaped sealing ring, allowing the motor's external wiring to pass through the inner sleeve and then through the connecting sleeve fixed to the junction box. Each wire is then connected to its corresponding terminal. The inner sleeve is then screwed onto the connecting sleeve. During this process, the outer sleeve gradually approaches the limiting ring, which then pushes the outer sleeve to the other side. At this point, another guide ring inside the outer sleeve moves the T-shaped plate in the opposite direction, reducing the distance between the grooved plates. The T-shaped sealing ring begins to contract until its inner ring tightly fits against the motor's external wiring, preventing any waterproof gaps.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a wire protection mechanism for preventing water leakage from motor wires;

[0018] Figure 2This is a structural diagram of the motor and junction box;

[0019] Figure 3 This is a cross-sectional view of the waterproof component;

[0020] Figure 4 This is an exploded diagram of a waterproof component.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Motor; 2. Terminal; 3. Junction box; 4. Wiring hole; 5. Waterproof component; 6. Connecting sleeve; 7. Limiting ring; 8. Inner sleeve; 9. Waterproof ring; 10. First sealing groove; 11. First sealing ring; 12. Outer sleeve; 13. Guide ring; 14. Slide groove; 15. T-shaped plate; 16. Groove plate; 17. T-shaped sealing ring; 18. Second sealing groove; 19. Second sealing ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0025] Please see Figure 1-4 This utility model is a wire protection mechanism to prevent water leakage in motor wires, including a motor 1 and a terminal 2. A junction box 3 is fixedly installed on the terminal 2. Several wiring holes 4 are opened through both sides of the junction box 3. Waterproof components 5 are fixedly installed in the wiring holes 4.

[0026] Specifically, the waterproof component 5 includes a connecting sleeve 6 that is fixedly connected to a wiring hole 4. A limit ring 7 is fixedly connected to the periphery of the connecting sleeve 6. An inner sleeve 8 located at one end of the limit ring 7 is threadedly connected to the outer periphery of the connecting sleeve 6. When wiring the motor, the inner sleeve 8 should be directly fitted onto the external wiring of the motor.

[0027] A waterproof ring 9 is fixedly connected to the side of the inner sleeve 8. A first sealing groove 10 is opened on the side of the waterproof ring 9, and a first sealing ring 11 is embedded in the first sealing groove 10. A second sealing groove 18 is opened on the side of the inner sleeve 8, and a second sealing ring 19 is embedded in the second sealing groove 18. The inner sleeve 8 and the waterproof ring 9 are slidably fitted together with an outer sleeve 12. Two guide rings 13 are fixedly connected to the inner side of the outer sleeve 12. When the outer sleeve 12 is fitted on the inner sleeve 8, the first sealing ring 11 and the second sealing ring 19 prevent moisture from entering the inner sleeve 8 through the gap between the inner sleeve 8 and the outer sleeve 12, thus affecting the waterproof effect on the external wiring of the motor.

[0028] Furthermore, the inner sleeve 8 has several grooves 14 arranged in a circular array on its side. A T-shaped plate 15 is slidably fitted in the grooves 14 between two guide rings 13. A grooved plate 16 is fixedly connected to one side of the T-shaped plate 15. A T-shaped sealing ring 17 is fixedly embedded in several grooved plates 16. A T-shaped sealing ring 17 with a smaller diameter should be selected, and a rubber material with better elasticity should be selected. In this way, when the external wiring of the motor is passed through the inner sleeve 8, the outer sleeve 12 is first pushed to one side, so that the outer sleeve 12 slides relative to the inner sleeve 8. At the same time, a guide ring 13 in the outer sleeve 12 pushes the T-shaped plate 15, so that the T-shaped plate 15 slides in the grooves 14. At the same time, the T-shaped plate 15 drives the grooved plates 16 to move in the same direction, so that the distance between each grooved plate 16 increases, thereby causing the T-shaped sealing ring 17 to expand, so that the external wiring of the motor can be passed through the inner sleeve 8.

[0029] The operation process in this embodiment is as follows: When wiring the motor is required, the outer sleeve 12 is first moved to one side, causing it to slide relative to the inner sleeve 8. Simultaneously, a guide ring 13 inside the outer sleeve 12 moves the T-shaped plate 15, causing it to slide within the groove 14. At the same time, the T-shaped plate 15 drives the grooved plates 16 to move in the same direction, increasing the distance between the grooved plates 16. This causes the T-shaped sealing ring 17 to expand, allowing the motor's external wiring to pass through the inner sleeve 8 and then through the connecting sleeve 6 fixedly mounted on the junction box 3. Next, connect each wire to its corresponding terminal block. Then, screw the inner sleeve 8 onto the connecting sleeve 6. During this process, the outer sleeve 12 gradually approaches the limiting ring 7. Then, the limiting ring 7 pushes the outer sleeve 12 to the other side. At this time, another guide ring 13 inside the outer sleeve 12 moves the T-shaped plate 15 in the opposite direction, making the gap between each groove plate 16 smaller. The T-shaped sealing ring 17 begins to shrink until the inner ring of the T-shaped sealing ring 17 is tightly fitted with the motor external wiring to avoid waterproof gaps. At the same time, it is suitable for motor external wiring of different thicknesses within a certain range.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wire protection mechanism for preventing water leakage in motor wires, comprising a motor (1) and a terminal block (2), characterized in that: A junction box (3) is fixedly installed on the terminal (2). Several wiring holes (4) are opened through both sides of the junction box (3). Waterproof components (5) are fixedly installed in the wiring holes (4). The waterproof component (5) includes a connecting sleeve (6) fixedly connected to a wiring hole (4), a limiting ring (7) fixedly connected to the peripheral side of the connecting sleeve (6), and an inner sleeve (8) located at one end of the limiting ring (7) threadedly connected to the outer peripheral side of the connecting sleeve (6).

2. The electrical wire protection mechanism for preventing water leakage from motor wires according to claim 1, characterized in that, A waterproof ring (9) is fixedly connected to the circumferential side of the inner sleeve (8). A first sealing groove (10) is opened on the circumferential side of the waterproof ring (9), and a first sealing ring (11) is embedded in the first sealing groove (10).

3. The electrical wire protection mechanism for preventing water leakage from motor wires according to claim 2, characterized in that, The inner sleeve (8) has a second sealing groove (18) on its circumferential side, and a second sealing ring (19) is embedded in the second sealing groove (18).

4. The electrical wire protection mechanism for preventing water leakage from motor wires according to claim 3, characterized in that, The inner sleeve (8) and the waterproof ring (9) are slidably fitted together with the outer sleeve (12), and two guide rings (13) are fixedly connected to the inner circumferential side of the outer sleeve (12).

5. The electrical wire protection mechanism for preventing water leakage from motor wires according to claim 4, characterized in that, The inner sleeve (8) has several grooves (14) arranged in a circular array on its circumferential side. A T-shaped plate (15) located between two guide rings (13) is slidably fitted in the grooves (14).

6. The electrical wire protection mechanism for preventing water leakage from motor wires according to claim 5, characterized in that, A grooved plate (16) is fixedly connected to one side of the T-shaped plate (15), and a T-shaped sealing ring (17) is fixedly embedded in a plurality of the grooved plates (16).