Cylinder penetrating piece of oil cooling motor

Abstract

The utility model discloses a cylinder penetrating member of an oil cooling motor, which comprises a shell and a sealing plug, the shell is cylindrical, an end plate is formed at one end of the shell, a baffle ring is formed on the inner wall of the other end of the shell, the baffle ring and the end plate are located at the two ends of the sealing plug, a threading hole is formed in the sealing plug, a wire rod is inserted in the threading hole, and the sealing plug is connected with the sealing plug. A sealing ring is formed on the surface of the sealing plug, the sealing ring and the inner wall of the shell are attached together, the threading hole comprises a wire inlet, a guide port, a plurality of extrusion ports and a wire outlet, the wire inlet is located on the side close to the baffle ring, the wire outlet is located on the side close to the end plate, the extrusion ports comprise extrusion holes, shaping holes and buffer holes which are sequentially distributed, and the guide port is located in the guide port. According to the utility model, the extrusion port in the sealing plug is used for extruding the wire rod, glue is uniformly distributed between the wire rod and the sealing plug, and a gap between a wire core and a wire rod insulating layer is reduced under the extrusion effect.

Description

Technical Field

[0001] This utility model relates to the field of cylinder insert technology, specifically a cylinder insert for an oil-cooled motor. Background Technology

[0002] Existing sealing technology for oil-cooled motors requires passing each low-voltage wire harness individually through a low-voltage cylinder insert sealing plug, and then inserting the sealing plug into the low-voltage cylinder insert. Due to the small size of the sealing plug and the dimensional errors in injection molding, the actual assembly process is difficult, time-consuming, and labor-intensive, and the airtightness is also poor. In addition, the low-voltage wire harness signal lines are copper stranded wires with large gaps between the wire core and the wire sheath, resulting in poor airtightness and easy leakage of steam and oil. Therefore, a cylinder insert design for this oil-cooled motor is needed. Utility Model Content

[0003] The purpose of this invention is to provide a cylinder-through component for an oil-cooled motor. It utilizes a highly permeable adhesive to coat the wire, and uses the extrusion port inside the sealing plug to squeeze the wire, distributing the adhesive evenly between the wire and the sealing plug. At the same time, the permeability of the adhesive is used to fill the gap between the wire core and the wire insulation layer, improving the sealing performance between the wire core and the wire insulation layer, and preventing steam or oil from leaking through the gap between the wire core and the wire insulation layer, as well as the gap between the wire and the sealing plug.

[0004] This utility model provides the following technical solution: a cylinder-passing component for an oil-cooled motor, comprising a housing and a sealing plug. The housing is cylindrical, with an end plate formed at one end and a retaining ring formed on the inner wall of the other end. The retaining ring and the end plate are located at both ends of the sealing plug. A wire-passing hole is provided inside the sealing plug, and a wire is inserted into the wire-passing hole. A sealing ring is formed on the surface of the sealing plug, and the sealing ring is fitted together with the inner wall of the housing. The wire-passing hole includes an inlet, a guide port, multiple extrusion ports, and an outlet. The inlet is located near the retaining ring, and the outlet is located near the end plate. The extrusion ports include extrusion holes, shaping holes, and buffer holes arranged in sequence. The shaping holes are circular holes, and the extrusion holes and buffer holes are conical holes formed at both ends of the shaping holes. The shaping holes are connected to the small-diameter ends of the extrusion holes, and the small-diameter ends of the shaping holes and buffer holes are connected.

[0005] To improve the stability of the sealing plug within the housing, the sealing plug and the retaining ring are assembled with an interference fit.

[0006] For the purpose of mounting and positioning the housing, a connecting portion is formed on the outer surface of the housing, and the connecting portion is embedded in the device.

[0007] In order to connect the housing to the equipment, a mounting ear is formed on the outer edge of the connecting part, and a connecting hole is provided in the center of the mounting ear. The connecting hole is connected to the equipment by bolts.

[0008] To improve the sealing and connection strength between the housing and the equipment, a sealing ring is fitted on the outer surface of the housing.

[0009] To improve the sealing performance between the housing and the sealing plug, a groove is provided on the inner wall of the housing for embedding the sealing element.

[0010] To limit the sealing plug with the end plate and allow the wire to exit normally, a rectangular hole is provided on the end plate, and all the wire outlets are inside the rectangular hole.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are: by forming multiple extrusion holes in the sealing plug, the extrusion holes are used to extrude the glue on the wire and the surface of the wire, so that the glue is evenly coated on the wire, keeping the wire and the sealing plug sealed, and at the same time, the gap between the wire core and the wire insulation layer is reduced under the extrusion pressure. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a perspective view of the overall structure of this utility model;

[0014] Figure 2 This is a perspective view of the overall structure of this utility model from another angle;

[0015] Figure 3 This is a rear view of the present invention;

[0016] Figure 4 This is the utility model Figure 3 Cross-sectional view of AA in the middle;

[0017] Figure 5 This is the utility model Figure 4 A magnified view of a portion of region B in the middle;

[0018] In the diagram: 1. Housing; 11. Connecting part; 12. End plate; 13. Groove; 14. Retaining ring; 2. Sealing plug; 21. Sealing ring; 3. Threading hole; 31. Thread inlet; 32. Guide port; 33. Extrusion port; 331. Extrusion hole; 332. Shaping hole; 333. Buffer hole; 34. Thread outlet; 4. Connecting hole; 5. Mounting ear; 6. Sealing ring. Detailed Implementation

[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 5 This utility model provides a technical solution: a cylinder insert for an oil-cooled motor, comprising a housing 1 and a sealing plug 2. The housing 1 is cylindrical, and the sealing plug 2 is embedded inside the housing 1. One end of the housing 1 is formed with an end plate 12, and the inner wall of the other end of the housing 1 is formed with a retaining ring 14. The retaining ring 14 and the end plate 12 are located at both ends of the sealing plug 2, limiting and blocking the two ends of the sealing plug 2 to prevent oil from seeping out of the housing 1. A wire hole 3 is opened inside the sealing plug 2, and a wire is inserted into the wire hole 3. Before entering the housing 1, glue is dripped on the surface of the wire. The glue is a highly penetrating glue, which works by siphoning... Adhesive is filled between the wire and the sealing plug 2. Simultaneously, utilizing the adhesive's penetrability, it permeates the wire core and insulation layer, sealing the space between them and eliminating microporous leakage. A sealing ring 21 is formed on the surface of the sealing plug 2, located near the inlet 31. The sealing ring 21 fits snugly against the inner wall of the housing 1, enhancing the seal between the housing 1 and the sealing plug 2. The wire hole 3 includes an inlet 31, a guide opening 32, multiple extrusion openings 33, and an outlet 34. The inlet 31 is located near the retaining ring 14, and the outlet 34 is located near the end plate 12. Figure 5 As shown, the extrusion port 33 includes an extrusion hole 331, a shaping hole 332, and a buffer hole 333 arranged in sequence. The shaping hole 332 is a round hole, while the extrusion hole 331 and the buffer hole 333 are both conical holes, formed at both ends of the shaping hole 332. The shaping hole 332 is connected to the small diameter end of the extrusion hole 331, and the shaping hole 332 is also connected to the small diameter end of the buffer hole 333. The extrusion hole 331 extrudes the wire, which reduces the gap between the wire insulation layer and the wire core, as well as the gap between the wire and the sealing plug. Under pressure, the adhesive is evenly distributed on the surface of the wire and between the wire core and the insulation layer, sealing the gap between the wire and the sealing plug. This prevents water vapor and oil from flowing into the motor through the gap between the wire and the sealing plug, thus improving the stability of the equipment operation.

[0021] like Figure 1 and 4 As shown, the sealing plug 2 and the retaining ring 14 are assembled by interference fit. The interference fit is used to install and fix the sealing plug 2, which improves the sealing performance of the gap between the sealing plug 2 and the housing 1. The retaining ring 14 is used to block the flow of oil and other fluids between the sealing plug 2 and the housing 1, keeping the working environment clean.

[0022] A connecting part 11 is formed on the outer surface of the housing 1. The connecting part 11 is embedded in the equipment. The housing 1 is positioned and installed by the connecting part 11 embedded in the equipment, which improves the installation efficiency.

[0023] like Figure 2 and 3 As shown, a mounting ear 5 is formed on the outer edge of the connecting part 11, and a connecting hole 4 is provided in the center of the mounting ear 5. The connecting hole 4 is connected to the equipment by bolts.

[0024] A sealing ring 6 is fitted on the outer surface of the housing 1. The sealing ring 6 enhances the sealing between the housing 1 and the equipment, further making the two tightly connected together.

[0025] like Figure 4 As shown, a groove 13 is provided on the inner wall of the housing 1. The groove 13 is used to embed the sealing element. The sealing element enhances the sealing performance between the sealing plug 2 and the housing 1, increases the contact area between the sealing plug 2 and the housing 1, and makes the connection between the two more stable.

[0026] like Figure 2 As shown, a rectangular hole is provided on the end plate 12, and the cable outlet 34 is located inside the rectangular hole. The size of the rectangular hole is smaller than the inner diameter of the housing 1, so that an inwardly protruding part is also formed on the end plate 12. This protruding part is used to block and limit the sealing plug 2.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cylinder-through component for an oil-cooled motor, comprising a housing and a sealing plug, characterized in that: The housing is cylindrical, with an end plate formed at one end and a retaining ring formed on the inner wall of the other end. The retaining ring and the end plate are located at both ends of the sealing plug. A wire-passing hole is provided inside the sealing plug, and a wire is inserted into the wire-passing hole. A sealing ring is formed on the surface of the sealing plug and fits against the inner wall of the housing. The wire-passing hole includes an inlet, a guide, multiple extrusion holes, and an outlet. The inlet is located near the retaining ring, and the outlet is located near the end plate. The extrusion holes include extrusion holes, shaping holes, and buffer holes arranged in sequence. The shaping holes are circular holes, and the extrusion holes and buffer holes are conical holes formed at both ends of the shaping holes. The shaping holes are connected to the small-diameter ends of the extrusion holes, and the small-diameter ends of the shaping holes and buffer holes are connected.

2. An oil-cooled electric motor cylinder-penetrating member according to claim 1, characterized in that: The sealing plug and the retaining ring are assembled by an interference fit.

3. An oil-cooled electric motor cylinder-penetrating member according to claim 2, characterized in that: A connecting portion is formed on the outer surface of the housing, and the connecting portion is embedded in the device.

4. An oil-cooled electric motor cylinder-penetrating member according to claim 3, characterized in that: The outer edge of the connecting part is formed with a mounting ear, and the center of the mounting ear is provided with a connecting hole, which is connected to the equipment by a bolt.

5. An oil-cooled electric motor cylinder-penetrating member according to claim 1, characterized in that: A sealing ring is fitted onto the outer surface of the housing.

6. An oil-cooled electric motor cylinder-penetrating member according to claim 1, characterized in that: The inner wall of the housing has a groove for embedding a seal.

7. An oil-cooled electric motor cylinder penetrating member as defined in claim 1, wherein: A rectangular hole is provided on the end plate, and the cable outlet is provided inside the rectangular hole.

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