A cable seal structure for an electrical connector

Abstract

The utility model discloses a cable sealing structure of electrical connector relates to cable connection technical field, solved the single problem of the fixing mode of corrugated sealing pipe and cable main body in cable connector in prior art, has the beneficial effect of guaranteeing the reliability and the sealing property of sealing pipe and cable main body connection, and the specific scheme is as follows: a kind of cable sealing structure of electrical connector, including cable connection seat, the one end of cable connection seat is connected with terminal, the one end of terminal away from cable connection seat is connected with cable main body, and the outer surface of cable main body is equipped with assembly ring, and interval distance is arranged between assembly ring and terminal, and terminal is circumferentially set with sealing pipe, and one end of sealing pipe is sealingly connected with cable connection seat, and the other end of sealing pipe is butted with assembly ring, and hoop component is placed in the end of sealing pipe to realize the sealing connection of sealing pipe and assembly ring.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a cable sealing structure for an electrical connector. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Electrical connectors are key components ensuring power connections and signal transmission across all parts of a train set. Cables, as an important part of electrical connectors, have sealing structures whose reliability directly affects the safety and stability of the train's operation. A cable sealing structure, as the name suggests, is a specially designed sealing device for cable connections, intended to prevent water, dust, and other external impurities from entering the cable, thus ensuring the electrical conductivity and insulation performance of the connector.

[0004] To ensure the sealing of the cable ends, existing electrical connectors typically have a corrugated sealing tube circumferentially installed at the connection between the terminal and the cable. One end of the corrugated sealing tube simply snaps into the end of the terminal, and the other end simply adheres to the cable body. In other words, the fixing methods of the corrugated sealing tube and the cable body are relatively simple. While this can ensure a certain level of sealing in the short term, the sealing capacity is insufficient for long-term use. The simple connection between the corrugated sealing pipe and the cable body can easily damage the outer structure of the cable body. The connection method between the corrugated sealing tube and the terminal end is also relatively simple, which cannot guarantee long-term sealing performance. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cable sealing structure for electrical connectors, improve the sealing performance of cable connection parts, and ensure the conductivity and electrical insulation performance of electrical connectors.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: A cable sealing structure for an electrical connector includes a cable connector base, one end of which is connected to a terminal block, and the end of the terminal block away from the cable connector base is connected to a cable body. An assembly ring is provided on the outer surface of the cable body, and the assembly ring is spaced apart from the terminal block. A sealing tube is circumferentially fitted around the terminal block, one end of which is sealed to the cable connector base, and the other end of which is mated to the assembly ring. A clamp component is placed at the end of the sealing tube to achieve a sealed connection between the sealing tube and the assembly ring.

[0007] As described above, in the cable sealing structure of an electrical connector, one end of the sealing tube is provided with a blocking ring for limiting the clamp component. Two blocking rings are provided, and the distance between the two blocking rings is adapted to the width of the clamp component. The two blocking rings are connected, and the blocking rings facilitate the positioning of the clamp component.

[0008] As described above, in the cable sealing structure of an electrical connector, multiple anti-slip strips are provided between the two blocking rings, with a spacing between adjacent anti-slip strips. An anti-slip groove is provided on the inner surface of the clamp component, and the anti-slip strips are inserted into the anti-slip groove. Through the provision of the anti-slip groove and anti-slip strips, the position of the clamp component is further effectively positioned.

[0009] As described above, in order to achieve the initial connection between the sealing tube and the assembly ring, the inside of the sealing tube is engaged with the assembly ring, and the assembly ring is pasted to the circumferential direction of the cable body.

[0010] As described above, in the cable sealing structure of an electrical connector, a positioning protrusion is provided at the end of the sealing tube, and a positioning groove is provided circumferentially in the assembly ring, wherein the positioning protrusion can be engaged in the positioning groove; Alternatively, a positioning groove is provided at the end of the sealing tube, and a positioning protrusion is provided circumferentially on the assembly ring, the positioning protrusion being able to be engaged in the positioning groove.

[0011] The cable sealing structure of the electrical connector described above, wherein the sealing tube is a single-piece sleeve and a wear-resistant ring is provided circumferentially on the sealing tube; The sealing tube is equipped with reinforcing ribs inside, which are set along the axial direction of the sealing tube. The setting of the reinforcing ribs effectively improves the structural strength of the sealing tube.

[0012] In the cable sealing structure of an electrical connector as described above, a locking ring is provided at one end of the sealing tube, and the locking ring is sealed to the cable connector. The length of the sealing tube is adapted to the distance between the cable connector and the assembly ring.

[0013] As described above, in the cable sealing structure of an electrical connector, a sealing gasket is provided at the locking ring of the sealing tube, and a sealing groove is provided at the end of the cable connector. The sealing gasket is inserted into the sealing groove, and the sealing gasket improves the sealing performance between the sealing tube and the cable connector.

[0014] As described above, in the cable sealing structure of an electrical connector, the locking ring is provided with multiple openings, and a first fastener passes through the openings to connect with the cable connector seat. The openings are located on the outside of the sealing gasket.

[0015] The cable sealing structure of an electrical connector as described above includes a first clamp and a second clamp, the inner diameters of the first clamp and the second clamp being adapted to the outer diameter of the sealing tube, and the first clamp and the second clamp being connected by a second fastener.

[0016] The beneficial effects of this utility model are as follows: 1) The sealing structure provided by this utility model has a cable body end terminal that is sealed to one end of the sealing tube through a cable connector seat. An assembly ring is set at the cable body. The sealing tube and the assembly ring are connected to achieve a preliminary connection. The clamp component locks the sealing tube on the assembly ring for a second layer of connection. In this way, the connection part of the cable is effectively sealed. The sealing tube and the cable body are sealed in a two-layer manner to ensure the sealing ability between the two and improve the long-term use effect accordingly.

[0017] 2) In this utility model, the clamp component fixes the sealing tube to the assembly ring. The clamp component does not directly act on the outer surface of the cable body, thus preventing damage to the cable sheath.

[0018] 3) In this utility model, two blocking rings are set at the end of the sealing tube. The distance between the blocking rings is adapted to the width of the clamp component, so as to position the clamp component for installation. Anti-slip strips are set between the blocking rings, and anti-slip grooves are set on the inner surface of the clamp component. Through the setting of anti-slip grooves and anti-slip strips, the position of the clamp component is further effectively positioned to avoid the clamp component from deviating and to fully improve the sealing performance between the sealing tube and the assembly ring.

[0019] 4) The sealing tube of this utility model is provided with reinforcing ribs inside, which effectively improves the structural strength of the sealing tube.

[0020] 5) In this utility model, a locking ring is provided at one end of the sealing tube. The sealing tube is connected to the cable connector through the locking ring. A sealing gasket is provided at the locking ring. A sealing groove is provided at the end of the cable connector. The sealing gasket is inserted into the sealing groove. The sealing gasket and the locking ring work together to not only lock but also seal, effectively improving the sealing performance between the sealing tube and the cable connector. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0022] Figure 1 This is a schematic diagram of a cable sealing structure of an electrical connector according to one or more embodiments of the present invention.

[0023] Figure 2This is an exploded view of the cable sealing structure of an electrical connector according to one or more embodiments of the present invention.

[0024] Figure 3 This is a schematic diagram of the connection between the cable connector base and the terminal block in the cable sealing structure of an electrical connector according to one or more embodiments of this utility model.

[0025] Figure 4 This is a schematic diagram of the sealing tube in the cable sealing structure of an electrical connector according to one or more embodiments of the present invention. Figure 1 .

[0026] Figure 5 This is a schematic diagram of the sealing tube in the cable sealing structure of an electrical connector according to one or more embodiments of the present invention. Figure 2 .

[0027] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0028] The components are: 1. Cable connector, 2. Terminal block, 3. Cable body, 4. Assembly ring, 5. Sealing tube, 6. Clamping component, 7. Locking ring, 8. Wear-resistant ring, 9. Reinforcing rib, 10. Sealing gasket, 11. Sealing groove, 12. Positioning protrusion, 13. Positioning groove, 14. Anti-slip strip, 15. Anti-slip groove, 16. Blocking ring. Detailed Implementation

[0029] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise expressly indicated by the present invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. As described in the background section, the existing methods for fixing the corrugated sealing tube to the cable body and the end of the terminal in cable connectors are relatively simple and cannot guarantee long-term use. In order to solve the above technical problems, this utility model proposes a cable sealing structure for electrical connectors.

[0031] In a typical embodiment of this utility model, refer to Figure 1 and Figure 2As shown, a cable sealing structure for an electrical connector includes a cable connector 1, one end of which is snapped with a terminal 2, and the end of the terminal 2 away from the cable connector 1 is provided with a cable body 3 wound around it. An assembly ring 4 is glued to the outer surface of the cable body 3, and a sealing tube 5 is sleeved on the outer surface of the assembly ring 4. The terminal 2 is located inside the sealing tube 5. Two symmetrically arranged clamping members 6 are slidably connected to the outer surface of the sealing tube 5. The two clamping members 6 are fixedly connected to each other by bolts. A locking ring 7 is fixedly connected to the end of the sealing tube 5 away from the clamping members 6. The locking ring 7 is connected to the cable connector 1 by bolts.

[0032] In the structure provided in this embodiment, the sealing tube 5 and the assembly ring 4 are connected to achieve the initial connection. The clamp component 6 locks the sealing tube 5 on the assembly ring to achieve the second layer of connection. In this way, the connection part of the cable is effectively sealed. The clamp component 6 will not directly act on the outer surface of the cable body 3, preventing the cable sheath of the cable body 3 from being damaged.

[0033] Among them, terminal 2 is an existing cable terminal, and terminal 2 has a mounting ring, on which the wires of the cable body are wound.

[0034] refer to Figure 3 As shown, the cable connector 1 is a cylindrical seat with a set height.

[0035] It is easy to understand that the clamp component 6 includes a first clamp and a second clamp. The inner diameter of the first clamp and the second clamp are adapted to the outer diameter of the sealing tube 5. Both the first clamp and the second clamp are semi-circular parts. The ends of the first clamp and the second clamp are respectively provided with extension sections. The extension sections of the first clamp and the second clamp are connected together and connected by a second fastener, a bolt and a nut.

[0036] In this embodiment, two blocking rings 16 are fixedly provided on the outer surface of the sealing tube 5. The two blocking rings 16 are spaced apart and connected by multiple anti-slip strips 14. The blocking rings facilitate the positioning of the clamping component. The multiple anti-slip strips 14 are arranged in a circumferential array along the circumferential direction of the sealing tube. The clamping component 6 is located between the two blocking rings 16, and the distance between the two blocking rings 16 is equal to the width of the clamping component 6.

[0037] To accommodate the anti-slip strip 14, the inner wall of the clamp component 6 is provided with multiple anti-slip grooves 15. The anti-slip grooves 15 correspond one-to-one with the anti-slip strip 14. The anti-slip strip 14 is inserted into the anti-slip groove 15. Through the setting of the anti-slip grooves 15 and the anti-slip strip 14, the position of the clamp component is further effectively positioned to avoid the clamp component 6 from deviating and to fully improve the sealing performance between the sealing tube 5 and the assembly ring 4.

[0038] In this embodiment, referenceFigure 5 As shown, the inner wall of the sealing tube 5 is fixed with several positioning protrusions 12 arranged in a circumferential array, for reference. Figure 2 As shown, the outer surface of the assembly ring 4 has several positioning grooves 13 arranged in a circular array, and the positioning protrusions 12 can be circular protrusions. The positioning protrusions 12 engage with the positioning grooves 13 to achieve the initial connection between the sealing tube 5 and the assembly ring 4.

[0039] In other examples, the end of the sealing tube 5 is provided with a positioning groove, and the assembly ring 4 is provided with a positioning protrusion in the circumferential direction, which can be inserted into the positioning groove.

[0040] It should be noted that the length of the sealing tube 5 is adapted to the distance between the cable connector 1 and the assembly ring 4. The sealing tube 5 is a single piece of rubber tubing, and wear-resistant rings 8 are provided on the outer surface of the sealing tube. Multiple wear-resistant rings 8 are provided to improve the wear resistance of the sealing tube 5. (Refer to...) Figure 4 As shown, the inner wall of the sealing tube 5 is fixedly connected with a reinforcing rib 9. The reinforcing rib 9 is arranged along the axial direction of the sealing tube, and there are multiple reinforcing ribs 9. Both the reinforcing rib 9 and the sealing tube 5 are made of rubber.

[0041] In other examples, the sealing tube 5 can also be a corrugated tube.

[0042] It should be noted that, in order to further improve the sealing performance between the sealing tube 5 and the cable connector 1, a locking ring 7 is provided at one end of the sealing tube 5. The locking ring 7 is sealed to the cable connector 1. The locking ring 7 extends beyond the sealing tube 5, and the outer diameter of the locking ring 7 is larger than the outer diameter of the sealing tube 5. The locking ring 7 is a metal part and is integrally formed with the sealing tube 5. A sealing gasket 10 is fixedly connected to the side of the locking ring 7 near the cable connector 1. The sealing gasket is a rubber gasket, and the inner diameter of the sealing gasket 10 is adapted to the inner diameter of the locking ring 7. The outer diameter of the sealing gasket 10 is smaller than the outer diameter of the locking ring 7. The locking ring 7 is provided with multiple bolt holes so that the locking ring 7 and the cable connector 1 can be connected by bolts to ensure the reliability of the connection. A sealing groove 11 is opened on the side of the cable connector 1 near the terminal 2. The sealing gasket 10 is inserted into the sealing groove 11 of the cable connector 1, and the sealing gasket 10 ensures the sealing performance of the connection between the two.

[0043] It is easy to understand that the assembly ring 4 coincides with the axis of the terminal 2. The assembly ring 4 is a circular ring structure. The assembly ring 4 and the end of the cable body 3 near the terminal 2 are spaced apart. The width of the assembly ring 4 is adapted to the spacing between the two blocking rings. The material of the assembly ring 4 is rubber.

[0044] First, use glue to attach the assembly ring 4 to the cable body 3. Then, fit the sealing tube 5 onto the outside of the cable body 3. Next, securely wrap the end of the cable body 3 near the cable connector 1 around the terminal 2. Fit the sealing tube 5 onto the outside of the assembly ring 4 until the positioning protrusion 12 is fully inserted into the positioning groove 13. Then, use bolts to install the locking ring 7 onto the cable connector 1 and use the clamp component 6 to lock the sealing tube 5 onto the assembly ring 4. This can seal the connection of the cable, and the clamp component 6 will not directly act on the outer surface of the cable body 3, preventing damage to the cable sheath of the cable body 3.

[0045] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cable sealing structure for an electrical connector, characterized in that, It includes a cable connector, one end of which is connected to a terminal block, and the other end of the terminal block, away from the cable connector, is connected to the cable body. The outer surface of the cable body is provided with an assembly ring, and the assembly ring is spaced apart from the terminal block. A sealing tube is circumferentially fitted around the terminal block, one end of which is sealed to the cable connector, and the other end of which is connected to the assembly ring. A clamp component is placed at the end of the sealing tube to achieve a sealed connection between the sealing tube and the assembly ring.

2. The cable sealing structure of an electrical connector according to claim 1, characterized in that, One end of the sealing tube is provided with a blocking ring for restricting the clamp component. There are two blocking rings, and the distance between the two blocking rings is adapted to the width of the clamp component. The two blocking rings are connected.

3. The cable sealing structure of an electrical connector according to claim 2, characterized in that, Multiple anti-slip strips are provided between the two blocking rings, with a spacing between adjacent anti-slip strips. Anti-slip grooves are provided on the inner surface of the clamp component, and the anti-slip strips are inserted into the anti-slip grooves.

4. The cable sealing structure of an electrical connector according to claim 1, characterized in that, The sealing tube is engaged with the assembly ring, which is then attached to the circumferential direction of the cable body.

5. The cable sealing structure of an electrical connector according to claim 4, characterized in that, The end of the sealing tube is provided with a positioning protrusion, and the assembly ring is provided with a positioning groove in the circumferential direction, so that the positioning protrusion can be inserted into the positioning groove; Alternatively, a positioning groove is provided at the end of the sealing tube, and a positioning protrusion is provided circumferentially on the assembly ring, the positioning protrusion being able to be engaged in the positioning groove.

6. The cable sealing structure of an electrical connector according to claim 1, characterized in that, The sealing tube is a single-piece sleeve, and a wear-resistant ring is provided around the circumference of the sealing tube; The sealing tube is equipped with reinforcing ribs, which are arranged along the axial direction of the sealing tube.

7. The cable sealing structure of an electrical connector according to claim 1, characterized in that, A locking ring is provided at one end of the sealing tube, and the locking ring is sealed to the cable connector. The length of the sealing tube is adapted to the distance between the cable connector and the assembly ring.

8. The cable sealing structure of an electrical connector according to claim 7, characterized in that, The sealing tube is provided with a sealing gasket at the locking ring, and the cable connector is provided with a sealing groove at its end, into which the sealing gasket is inserted.

9. The cable sealing structure of an electrical connector according to claim 8, characterized in that, The locking ring is provided with multiple openings, and the first fastener passes through the openings to connect with the cable connector. The openings are located on the outside of the sealing gasket.

10. The cable sealing structure of an electrical connector according to claim 1, characterized in that, The clamp component includes a first clamp and a second clamp, the inner diameters of the first clamp and the second clamp are adapted to the outer diameter of the sealing tube, and the first clamp and the second clamp are connected by a second fastener.

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