connector

Abstract

The application discloses a connector, which comprises a rubber core and a cover. The outer circumferential surface of the rubber core is provided with a waterproof groove, and the waterproof groove is arranged around the circumference of the rubber core. The cover is sleeved on the outer circumferential surface of the rubber core, and the inner circumferential surface of the cover is provided with a waterproof protrusion, and the waterproof protrusion is arranged around the circumference of the cover. The waterproof protrusion is sealingly positioned in the waterproof groove. The cover and the rubber core are in an integrated structure. The connector has simple structure and better waterproof performance.

Description

Technical Field

[0001] This application relates to the field of electrical connector technology, and more particularly to a connector. Background Technology

[0002] Connectors are widely used in various fields, including automobiles, communications, computers, consumer electronics, industry, and transportation. Applicable vehicles include new energy vehicles, electric bicycles, electric motorcycles, and electric scooters. Connector plugs and sockets, as key components, bridge communication between circuits, allowing current to flow and enabling the circuit to perform its intended function. However, existing connectors have complex structures and poor waterproofing. Utility Model Content

[0003] The purpose of this application is to provide a connector.

[0004] This application provides a connector, comprising a core and a cover. The core has a waterproof groove on its outer peripheral surface, which surrounds the core circumferentially. The cover is fitted onto the outer peripheral surface of the core, and has a waterproof protrusion on its inner peripheral surface, which surrounds the cover circumferentially. The waterproof protrusion is sealed within the waterproof groove. The cover and the core are an integral structure.

[0005] In this application, the cover and the core are integrated into a single structure, resulting in fewer parts, a simpler structure, and easier assembly, which improves the assembly efficiency of the connector. Furthermore, the waterproof groove and waterproof protrusion work together to provide waterproofing, enhancing the connector's waterproof performance. Attached Figure Description

[0006] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the embodiments will be briefly described below.

[0007] Figure 1 This is a three-dimensional structural diagram of the connector provided in the first embodiment of this application.

[0008] Figure 2 yes Figure 1 An exploded view of the three-dimensional structure of the connector.

[0009] Figure 3 yes Figure 2 One of the cross-sectional views of the cover of the connector.

[0010] Figure 4 yes Figure 2 One of the cross-sectional views of the core of the connector.

[0011] Figure 5 yes Figure 2 A three-dimensional structural diagram of the sealing plug of the connector.

[0012] Figure 6 yes Figure 2 A three-dimensional structural diagram of the end cap of the connector.

[0013] Figure 7 yes Figure 1 One of the cross-sectional views of the connector.

[0014] Figure 8 yes Figure 7 Enlarged view of connector A in the middle.

[0015] Figure 9 This is a cross-sectional view of the connector provided in the second embodiment of this application. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0017] It should be noted that, in this document, the reference to "embodiment" or "implementation" means that a specific feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0018] The terms "first" and "second" appearing in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. It should be noted that, unless otherwise explicitly stated and limited, the terms "installed," "connected," "linked," and "set on" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0019] Please refer to Figure 1 ,Figure 2 and Figure 3 The connector 100 provided in the first embodiment of this application includes a terminal 10, a core 20, a cover 30, a sealing plug 40, and an end cap 50. The terminal 10 passes through the core 20. A waterproof groove 21 is provided on the outer peripheral surface of the core 20, and the waterproof groove 21 surrounds the core 20 circumferentially. The cover 30 is fitted onto the outer peripheral surface of the core 20, and a waterproof protrusion 31 is provided on the inner peripheral surface of the cover 30, and the waterproof protrusion 31 surrounds the cover 30 circumferentially; the waterproof protrusion 31 is sealed and positioned within the waterproof groove 21. The cover 30 and the core 20 are an integral structure. One end of the sealing plug 40 is inserted into the core 20, and the other end of the sealing plug 40 sealably covers the gap between the cover 30 and the core 20. The end cap 50 is fitted onto the cover 30, and the end cap 50, the cover 30, and the core 20 together clamp the sealing plug 40.

[0020] In this embodiment, the cover 30 and the core 20 are formed by secondary injection molding. The processed core 20 is placed into the mold as an insert before the cover 30 is injection molded. After injection molding, an integrated cover 30 and core 20 are obtained. The cover 30 and core 20 are an integrated structure with fewer parts, a simple structure, and convenient assembly, which helps to improve the assembly efficiency of the connector 100. Furthermore, the waterproof groove 21 and the waterproof protrusion 31 cooperate to provide waterproofing, resulting in better waterproof performance of the connector 100.

[0021] The connector 100 of this embodiment can be widely used in various fields such as automobiles, communications, computers, consumer electronics, industry, and transportation. For example, it can be used as a key component in batteries of new energy vehicles, electric bicycles, electric motorcycles, electric scooters, and power tools. Its applications are very wide and are not limited to this example.

[0022] Please refer to Figure 3In some embodiments, the cover 30 includes a substrate 32 and a fixing seat 33, with one end of the fixing seat 33 fixedly connected to one side of the substrate 32 along its thickness direction. The cover 30 has a receiving cavity 331, which passes through the end face of the fixing seat 33 away from the substrate 32 and the surface of the substrate 32 away from the fixing seat 33 along the X-axis direction. Understandably, the X-axis direction is the axial direction of the adhesive core 20. In this embodiment, the waterproof protrusion 31 includes a first waterproof protrusion 31a, a second waterproof protrusion 31b, and a third waterproof protrusion 31c. The first waterproof protrusion 31a, the second waterproof protrusion 31b, and the third waterproof protrusion 31c are all arranged around the circumference of the fixing seat 33 of the cover 30. The first waterproof protrusion 31a and the second waterproof protrusion 31b are spaced apart along the X-axis direction. The third waterproof protrusion 31c is located between the first waterproof protrusion 31a and the second waterproof protrusion 31b. The outer peripheral surface of the fixing base 33 is provided with a first buckle 332 and a second buckle 333 at the end away from the base plate 32. The first buckle 332 and the second buckle 333 are arranged opposite to each other along the radial direction of the fixing base 33.

[0023] Please refer to Figure 4 The core 20 includes a support portion 22, a mating portion 23, and a connecting portion 24, which are sequentially fixedly connected along the X-axis. The end face of the support portion 22 facing away from the connecting portion 24 has a sealing hole 221, and the end face of the connecting portion 24 facing away from the support portion 22 has a receiving cavity 241. The core 20 also has multiple mounting holes 231, each of which passes through the bottom surface of the sealing hole 221 and the bottom surface of the receiving cavity 241 along the X-axis. A waterproof groove 21 is disposed on the outer peripheral surface of the mating portion 23. In this embodiment, the waterproof groove 21 includes a first waterproof groove 21a, a second waterproof groove 21b, and a third waterproof groove 21c. The first waterproof groove 21a, the second waterproof groove 21b, and the third waterproof groove 21c are all arranged around the circumference of the core 20. The first waterproof groove 21a and the second waterproof groove 21b are spaced apart along the X-axis, and the third waterproof groove 21c is located between the first waterproof groove 21a and the second waterproof groove 21b. The outer peripheral surface of the connecting part 24 is provided with an external thread at the end away from the support part 22. When the connector 100 is inserted into the external connector 100, the connecting part 24 is used to connect with the mating end of the external connector 100 by thread.

[0024] Please refer to Figure 5The sealing plug 40 has multiple first through holes 41, which pass through the sealing plug 40 along the X-axis. The multiple first through holes 41 are arranged in a rectangular, spaced-apart pattern. A sealing portion 42 is provided at one end of the outer peripheral surface of the sealing plug 40, forming a ring around the circumference of the sealing plug 40. At the end of the outer peripheral surface of the sealing plug 40 away from the sealing portion 42, a first sealing protrusion 43 and a second sealing protrusion 44 are also provided, both forming a ring around the circumference of the sealing plug 40. The first sealing protrusion 43 and the second sealing protrusion 44 are arranged at intervals along the axial direction of the sealing plug 40, with the second sealing protrusion 44 being closer to the sealing portion 42 than the first sealing protrusion 43. The second sealing protrusion 44 and the sealing portion 42 are arranged at intervals along the axial direction of the sealing plug 40.

[0025] Please refer to Figure 6 The end cap 50 includes a cover plate 51 and a sleeve ring 52. The sleeve ring 52 is fixedly connected to one side of the cover plate 51 along its thickness direction. The cover plate 51 has multiple second through holes 511, which pass through the cover plate 51 along the X-axis and communicate with the inner cavity of the sleeve ring 52. The multiple second through holes 511 are arranged in a rectangular interval. The sleeve ring 52 has two first clearance grooves 521 and two second clearance grooves 522. The two first clearance grooves 521 are arranged at intervals along the circumference of the end cap 50, and a first cantilever 523 is formed between the two first clearance grooves 521. Two second clearance grooves 522 are arranged circumferentially around the end cover 50. Two first clearance grooves 521 and two second clearance grooves 522 are radially opposite to each other on the end cover 50. A second cantilever 524 is formed between the two second clearance grooves 522. The second cantilever 524 is radially opposite to the first cantilever 523 on the end cover 50. The first cantilever 523 is provided with a first retaining groove 5231, and the second cantilever 524 is provided with a second retaining groove 5241.

[0026] Please refer to Figure 7 and Figure 8 In this embodiment, one end of each of the multiple terminals 10 is positioned in a corresponding mounting hole 231, and the other end of each of the multiple terminals 10 is positioned in a receiving cavity 241. The cover 30 is sleeved on the outer peripheral surface of the mating part 23 and the outer peripheral surface of the support part 22. That is, both the mating part 23 and the support part 22 of the core 20 are positioned within the receiving cavity 331 of the cover 30. The first waterproof protrusion 31a is sealed within the first waterproof groove 21a, the second waterproof protrusion 31b is sealed within the second waterproof groove 21b, and the third waterproof protrusion 31c is sealed within the third waterproof groove 21c. By designing multiple waterproof grooves 21 and multiple waterproof protrusions 31 to cooperate with each other, multiple waterproofing points can be achieved between the core 20 and the cover 30, increasing the waterproof travel between the core 20 and the cover 30, which is beneficial to improving the waterproof performance of the connector 100.

[0027] The sealing plug 40 is inserted into the sealing hole 221 in a sealing manner. The end face of the sealing plug 40 facing away from the sealing part 42 abuts against the bottom surface of the sealing hole 221 in a sealing manner. The plurality of first through holes 41 of the sealing plug 40 are correspondingly aligned with the plurality of mounting holes 231. The first sealing protrusion 43 and the second sealing protrusion 44 of the sealing plug 40 abut against the inner circumferential surface of the sealing hole 221 in a sealing manner. The sealing part 42 seals the gap between the fixing seat 33 of the cover 30 and the support part 22 of the core 20 in a sealing manner. The sealing part 42 abuts against the end face of the fixing seat 33 facing away from the substrate 32 and the end face of the support part 22 facing away from the connecting part 24. By providing the sealing plug 40, the sealing plug 40 can seal the gap between the cover 30 and the core 20, further improving the waterproof performance of the connector 100. In this embodiment, a first sealing protrusion 43 and a second sealing protrusion 44 are provided between the outer peripheral surface of the sealing plug 40 and the inner peripheral surface of the sealing hole 221. The outer peripheral surface of the sealing plug 40 and the inner peripheral surface of the sealing hole 221 press against the first sealing protrusion 43 and the second sealing protrusion 44, causing interference between the first sealing protrusion 43 and the second sealing protrusion 44 and the inner peripheral surface of the sealing hole 221. The first sealing protrusion 43 and the second sealing protrusion 44 seal the gap between the outer peripheral surface of the sealing plug 40 and the inner peripheral surface of the sealing hole 221, thus improving the waterproof performance of the connector 100. In other embodiments, the first sealing protrusion 43 and the second sealing protrusion 44 may also be provided on the inner peripheral surface of the sealing hole 221.

[0028] An end cap 50 is fitted onto the end of the sealing part 42 and the fixing seat 33 of the cover 30 away from the base plate 32. The end cap 50 is snapped into the fixing seat 33. A first buckle 332 is snapped into the first slot 5231 of the first cantilever 523, and a second buckle 333 is snapped into the second slot 5241 of the second cantilever 524. By setting the first cantilever 523 and the second cantilever 524, the first cantilever 523 and the second cantilever 524 have better toughness and are easier to snap into place. In other embodiments, the first buckle 332 and the second buckle 333 can also be set on the first cantilever 523 and the second cantilever 524 respectively, and the first slot 5231 and the second slot 5241 can also be set on the fixing seat 33.

[0029] The multiple second through holes 511 of the end cap 50 correspond one-to-one with the multiple first through holes 41 of the sealing plug 40. The cover plate 51 of the end cap 50, the fixing seat 33, and the support 22 sealably clamp the sealing part 42. Understandably, the end cap 50 presses the sealing plug 40 tightly to prevent the sealing plug 40 from falling off the rubber core 20. Furthermore, when the end cap 50 presses the sealing plug 40, the sealing plug 40 is compressed, and the greater the interference between the sealing plug 40 and the support 22 and the fixing seat 33, the better the waterproof effect.

[0030] In this embodiment, the first waterproof groove 21a is located at the end of the mating part 23 near the connecting part 24. During secondary injection molding, the wall thickness of the cover 30 is more uniform, which facilitates the secondary injection molding of the cover 30 and the core 20, and also increases the firmness of the connection between the cover 30 and the core 20. The second waterproof groove 21b and the third waterproof groove 21c are relatively deep, which helps to increase the bonding area between the cover 30 and the core 20, thereby improving the bonding force between the cover 30 and the core 20. The second waterproof groove 21b is also wider, which also helps to increase the bonding area between the cover 30 and the core 20, and further improves the bonding force between the cover 30 and the core 20.

[0031] Please refer to Figure 7 and Figure 8 In some embodiments, a third sealing protrusion 421 is provided between the sealing portion 42 and the fixing seat 33 of the cover 30, and the third sealing protrusion 421 surrounds the circumference of the sealing plug 40; a fourth sealing protrusion 422 is provided between the sealing portion 42 and the support portion 22 of the core 20, and the fourth sealing protrusion 422 surrounds the circumference of the sealing plug 40. The third sealing protrusion 421 surrounds the fourth sealing protrusion 422, and the gap between the fixing seat 33 of the cover 30 and the support portion 22 of the core 20 is located between the third sealing protrusion 421 and the fourth sealing protrusion 422. Exemplarily, in this embodiment, both the third sealing protrusion 421 and the fourth sealing protrusion 422 are provided on the surface of the sealing portion 42 facing the cover 30 and the core 20. In other embodiments, the third sealing protrusion 421 may also be provided on the surface of the fixing seat 33 of the cover 30 facing the sealing portion 42, and the fourth sealing protrusion 422 may also be provided on the surface of the support portion 22 of the core 20 facing the sealing portion 42.

[0032] In this embodiment, when the sealing plug 40 is inserted into the sealing hole 221, the third sealing protrusion 421 sealably abuts against the surface of the fixing seat 33 of the cover 30 away from the substrate 32, and the fourth sealing protrusion 422 sealably abuts against the surface of the support portion 22 of the core 20 away from the connecting portion 24. The third sealing protrusion 421 and the fourth sealing protrusion 422 interfere with the fixing seat 33 and the support portion 22 respectively. The third sealing protrusion 421 and the fourth sealing protrusion 422 surround the gap between the fixing seat 33 and the support portion 22, preventing water from entering the interior of the connector 100 from the gap between the fixing seat 33 and the support portion 22.

[0033] Please refer to Figure 7 and Figure 8In some embodiments, a fifth sealing protrusion 423 is provided between the surface of the sealing portion 42 facing away from the cover 30 and the rubber core 20 and the cover plate 51 of the end cap 50. The fifth sealing protrusion 423 surrounds the sealing plug 40 in a circumferential manner. Exemplarily, the fifth sealing protrusion 423 is provided on the surface of the sealing portion 42 facing away from the cover 30 and the rubber core 20. In other embodiments, the fifth sealing protrusion 423 may also be provided on the surface of the cover plate 51 facing the sealing portion 42.

[0034] In this embodiment, when the end cap 50 is sleeved on the sealing part 42 and the fixing seat 33, the cover plate 51 of the end cap 50 clamps the sealing part 42 with the fixing seat 33 and the support part 22. The fifth sealing protrusion 423 is squeezed and deformed. The fifth sealing protrusion 423 interferes with the cover plate 51. The fifth sealing protrusion 423 can seal the gap between the sealing part 42 and the cover plate 51, further improving the waterproof performance of the connector 100.

[0035] Please refer to Figure 7 and Figure 8 In some embodiments, a sixth sealing protrusion 424 is provided between the outer peripheral surface of the sealing portion 42 and the inner peripheral surface of the end cap 50, and the sixth sealing protrusion 424 surrounds the sealing plug 40 circumferentially. The sixth sealing protrusion 424 is disposed between the outer peripheral surface of the sealing portion 42 and the inner peripheral surface of the sleeve ring 52. For example, the sixth sealing protrusion 424 is disposed on the outer peripheral surface of the sealing portion 42. In other embodiments, the sixth sealing protrusion 424 may also be disposed on the inner peripheral surface of the sleeve ring 52.

[0036] In this embodiment, when the end cap 50 is fitted onto the sealing part 42 and the fixing seat 33, the sleeve ring 52 squeezes the sixth sealing protrusion 424, the sixth sealing protrusion 424 is deformed by the squeeze, the sixth sealing protrusion 424 interferes with the sleeve ring 52, and the sixth sealing protrusion 424 can seal the gap between the sealing part 42 and the sleeve ring 52, further improving the waterproof performance of the connector 100.

[0037] Please refer to Figure 7 In some embodiments, the connector 100 further includes a sealing gasket 60 disposed within the receiving cavity 241. The sealing gasket 60 is sleeved on a plurality of terminals 10, and the sealing gasket 60 is interference-fitted with the plurality of terminals 10. The sealing gasket 60 abuts against the bottom surface of the receiving cavity 241. By providing the sealing gasket 60, the sealing gasket 60 can seal the insertion end of the terminals 10.

[0038] Please refer to Figure 7In some embodiments, a sealing groove 242 is provided on the outer peripheral surface of the connecting portion 24 of the core 20 near the mating portion 23, and the sealing groove 242 surrounds the core 20 circumferentially. The connector 100 also includes a sealing ring 70, which is sealed and positioned within the sealing groove 242. When the connector 100 is connected to an external connector 100, the connecting portion 24 is inserted into the mating end of the external connector 100, and the connecting portion 24 and the mating end clamp the sealing ring 70 to achieve a seal between the connecting portion 24 and the mating end.

[0039] Please refer to Figure 9 The structure of the connector 100 provided in the second embodiment of this application is similar to that of the connector 100 provided in the first embodiment of this application. The main difference is that the connector 100 in the second embodiment omits the sealing plug 40 and the end cap 50, and the number of waterproof grooves 21 and waterproof protrusions 31 in the connector 100 in the second embodiment is different from the number of waterproof grooves 21 and waterproof protrusions 31 in the connector 100 in the first embodiment.

[0040] Specifically, in the second embodiment, the adhesive core 20 omits the second waterproof groove 21b, and the cover 30 omits the second waterproof protrusion 31b. The fixing seat 33 of the cover 30 has a potting cavity 334 on its end face away from the substrate 32, and the potting cavity 334 communicates with the receiving cavity 331. The mating portion 23 of the adhesive core 20 is positioned within the receiving cavity 331. The end of the supporting portion 22 of the adhesive core 20 near the mating portion 23 is positioned within the receiving cavity 331, and the end of the supporting portion 22 away from the mating portion 23 is positioned within the potting cavity 334. The supporting portion 22 is spaced apart from the inner circumferential surface of the potting cavity 334. The end face of the supporting portion 22 away from the mating portion 23 is located within the potting cavity 334; that is, the entire supporting portion 22 is located within the potting cavity 334. The sealing hole 221 of the supporting portion 22 communicates with the potting cavity 334.

[0041] The potting cavity 334 is used for potting adhesive. Before potting, multiple external wire harnesses 90 are soldered to multiple terminals 10. One end of each wire harness 90 is located inside the sealing hole 221 and soldered to the terminal 10, while the other end of the wire harness 90 is located outside the sealing hole 221. After the wire harnesses 90 and terminals 10 are soldered, sealant is injected into the gap between the support portion 22 of the adhesive core 20 and the inner circumferential surface of the potting cavity 334. The sealant fills the gap between the support portion 22 and the inner circumferential surface of the potting cavity 334 and the sealing hole 221 to form a sealant body 80. The sealant body 80 is flush with the end face of the fixing seat 33 facing away from the substrate 32, and the sealant body 80 covers the support portion 22 and the wire harnesses 90.

[0042] In this embodiment, the sealing colloid 80 can seal the gap between the fixing seat 33 and the core 20, as well as the sealing hole 221. After the sealing colloid 80 solidifies, the connection stability between the sealing colloid 80 and the fixing seat 33 and the core 20 is higher, and the sealing colloid 80 is less likely to fall off from the potting cavity 334, which helps to avoid the problem of waterproof failure of the connector 100 during use.

[0043] The embodiments of this application have been described in detail above. Specific examples have been used in this article to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application.

Claims

1. A connector, characterized in that, include: The rubber core has a waterproof groove on its outer circumference, and the waterproof groove surrounds the circumference of the rubber core. A cover is fitted onto the outer circumferential surface of the adhesive core. The inner circumferential surface of the cover has a waterproof protrusion that surrounds the circumference of the cover. The waterproof protrusion is sealed and positioned within the waterproof groove. The cover and the adhesive core are an integral structure.

2. The connector according to claim 1, characterized in that, The waterproof groove includes a first waterproof groove and a second waterproof groove arranged at intervals along the axial direction of the rubber core, and the waterproof protrusion includes a first waterproof protrusion and a second waterproof protrusion arranged at intervals along the axial direction of the rubber core. The first waterproof protrusion is sealed and positioned in the first waterproof groove, and the second waterproof protrusion is sealed and positioned in the second waterproof groove.

3. The connector according to claim 2, characterized in that, The waterproof groove further includes a third waterproof groove, which is located between the first waterproof groove and the second waterproof groove; the waterproof protrusion further includes a third waterproof protrusion, which is located between the first waterproof protrusion and the second waterproof protrusion, and the third waterproof protrusion is sealed and positioned in the third waterproof groove.

4. The connector according to claim 1, characterized in that, One end of the core is provided with a support portion, the cover is sleeved on the support portion, and the end face of the support portion is provided with a sealing hole; the connector also includes a sealing plug, the sealing plug is sealedly inserted into the sealing hole; one end of the outer peripheral surface of the sealing plug is provided with a sealing portion, the sealing portion surrounds the circumference of the sealing plug; the sealing portion sealably covers the gap between the cover and the support portion.

5. The connector according to claim 4, characterized in that, A first sealing protrusion and a second sealing protrusion are provided between the outer peripheral surface of the sealing plug and the inner peripheral surface of the sealing hole. The first sealing protrusion and the second sealing protrusion surround the circumference of the sealing plug and are arranged at intervals along the axial direction of the sealing plug.

6. The connector according to claim 5, characterized in that, A third sealing protrusion is provided between the sealing part and the cover, and the third sealing protrusion surrounds the circumference of the sealing plug; a fourth sealing protrusion is provided between the sealing part and the support part, and the fourth sealing protrusion surrounds the circumference of the sealing plug. The third sealing protrusion surrounds the fourth sealing protrusion, and the gap between the cover and the support is located between the third sealing protrusion and the fourth sealing protrusion.

7. The connector according to any one of claims 4 to 6, characterized in that, The connector further includes an end cap, which is sleeved on the sealing portion and the cover; the end cap, the cover, and the support portion seal the sealing portion in a sealing manner.

8. The connector according to claim 7, characterized in that, A fifth sealing protrusion is provided between the surface of the sealing part away from the cover and the rubber core and the end cap, and the fifth sealing protrusion surrounds the circumference of the sealing plug.

9. The connector according to claim 8, characterized in that, A sixth sealing protrusion is provided between the outer peripheral surface of the sealing part and the inner peripheral surface of the end cap, and the sixth sealing protrusion surrounds the circumference of the sealing plug.

10. The connector according to claim 1, characterized in that, The end face of the cover is provided with a potting cavity, one end of the glue core is located in the potting cavity, and the glue core is spaced apart from the inner circumferential surface of the potting cavity; sealant is poured into the gap between the glue core and the inner circumferential surface of the potting cavity to form a sealant.

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