Wire harness connector with stable air tightness

Abstract

The utility model relates to the technical field of electronic equipment connection, in particular to a wire harness connector with stable air tightness. The electronic device comprises a shell with a containing cavity, a plastic front shell arranged at one end of the shell, a plastic rear cover arranged on the side, away from the plastic front shell, of the shell, a first sealing ring arranged between the shell and the plastic front shell, a second sealing ring arranged between the shell and the plastic rear cover, a signal module and a power module. The plastic front shell comprises a first assembling part used for being embedded into the containing cavity, a first sealing part covering the containing cavity and a first abutting part used for abutting against the first sealing ring, the first assembling part is provided with a first cavity allowing the signal module to be embedded and a second cavity allowing the power module to be embedded, and the shell is provided with a first sealing groove allowing the first sealing ring to be embedded. When the first assembling part is embedded into the containing cavity, the first abutting part abuts against the first sealing ring. The wire harness connector has the effect of improving the air tightness of the wire harness connector in a dynamic environment.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment connection, and in particular to a wiring harness connector with stable airtightness. Background Art

[0002] At present, the wire harness connector is a component used to connect different parts of electronic equipment or systems. It usually consists of two parts, a plug and a socket, and is used to connect wires, cables or harnesses to achieve data transmission or power transmission. Wire harness connectors are usually used in automobiles, electronic equipment, household appliances and other fields. In the automotive industry, wire harness connectors are designed to achieve high-frequency signal transmission and current transmission at the same time to meet the connection requirements between a variety of electronic devices. However, with the increasing complexity of the application environment, the requirements for the air tightness of the connector are also increasing.

[0003] In the connector industry, 1+2 series harness connectors usually adopt a waterproof design that separates the coaxial line and the electronic wire, or does not perform waterproofing at all. However, in the connector industry, it is crucial to ensure the sealing and reliability of the harness connector. The above design method can play a certain sealing effect in a static or stable environment, but in a dynamic environment with vibration or swaying of the cable assembly, its sealing is often affected. Specifically, due to the insufficient reliability of the sealing structure, airtight leakage is prone to occur in a dynamic environment, which leads to signal transmission disconnection and even causes serious problems such as fire. This situation needs to be improved. Utility Model Content

[0004] In order to improve the air tightness of a wiring harness connector in a dynamic environment, the present application provides a wiring harness connector with stable air tightness.

[0005] The present application provides a wiring harness connector with stable airtightness, which adopts the following technical solution:

[0006] A wire harness connector with stable airtightness, comprising a shell with a accommodating cavity, a plastic front shell arranged at one end of the shell, a plastic back cover arranged at a side of the shell away from the plastic front shell, a first sealing ring arranged between the shell and the plastic front shell, a second sealing ring arranged between the shell and the plastic back cover, a signal module and a power module; the plastic front shell comprises a first assembly portion for embedding into the accommodating cavity, a first sealing portion covering the accommodating cavity, and a first abutting portion for abutting against the first sealing ring, the first assembly portion is provided with a first chamber for embedding the signal module and a second chamber for embedding the power module, the shell is provided with a first sealing groove for embedding the first sealing ring, and when the first assembly portion is embedded in the accommodating cavity, the first abutting portion abuts against the first sealing ring.

[0007] By adopting the above technical solution, the connector includes a shell, a plastic front shell and a plastic back cover. The plastic front shell is located at one end of the shell and is used to close the front of the connector. The plastic back cover is combined with the shell to form a rear sealing part of the connector. A first sealing ring is installed between the shell and the plastic front shell, and a second sealing ring is installed between the shell and the plastic back cover. The first sealing ring and the second sealing ring are used to ensure the airtightness of the connector and prevent external liquid or impurities from entering the interior of the connector. When assembling the connector, the signal module and the power module are first fixed to the first assembly part of the plastic front shell, and the first sealing ring cooperates with the first sealing groove. When the first assembly part is embedded in the accommodating cavity, the first abutting part on the plastic front shell is tightly pressed against the first sealing ring, which further strengthens the sealing of the connector. The second sealing ring and the plastic back cover are then installed on the shell in sequence. The front and rear of the connector are effectively sealed and protected, ensuring the stable airtightness of the connector in a dynamic environment, thereby protecting the internal signal and power modules from being affected by the external environment.

[0008] Optionally, it also includes a coaxial line connected to the signal module and an electronic wire connected to the power module, the shell is provided with a second sealing groove for the second sealing ring to be embedded, the second sealing ring is provided with a first through hole for the coaxial line to pass through and a second through hole for the electronic wire to pass through, the plastic back cover includes a second sealing portion for sealing the accommodating cavity, a second abutting portion arranged on the second sealing portion close to the second sealing ring and tightly abutted against the second sealing ring, and a second assembly portion arranged on both sides of the second sealing portion and used for fixing to the shell, the second sealing portion is provided with a third through hole for the coaxial line to pass through and a fourth through hole for the electronic wire to pass through, and the second assembly portion is fixed to the shell through a first detachable component.

[0009] By adopting the above technical solution, the shell cooperates with the second sealing ring and the second sealing groove to further improve the air tightness of the connector, and the coaxial line and the electronic wire are fixed on the second sealing ring and the second sealing part of the plastic back cover. The plastic back cover seals the accommodating cavity of the connector through the second sealing part, and abuts against the second sealing ring through the second abutting part to ensure the air tightness of the connector. In addition, a second assembly part is fixed on the plastic back cover, and the second assembly part is fixed to the shell through the first detachable component. The connector not only has good air tightness and stability, but also takes effective sealing and fixation into consideration when handling the coaxial line and the electronic wire, which is beneficial to improving the adaptability of the connector so that the connector can operate reliably in various working environments.

[0010] Optionally, the first detachable component includes a first limiting block disposed on a side of the housing close to the second assembly portion, and a first limiting groove disposed on the second assembly portion and for the first limiting block to be embedded in.

[0011] By adopting the above technical solution, the function of the first limit block is to provide position limiting and fixed support when the connector is assembled, and the function of the first limit groove is to accommodate and cooperate with the first limit block to ensure that the connector components are in the correct position. Through the design of the first limit block and the first limit groove, the assembly of the shell and the plastic back cover is limited to the correct position and direction, thereby ensuring that the connector can be accurately and stably aligned and fixed during assembly.

[0012] Optionally, a guide block is fixed to the inner wall of the accommodating cavity along the length direction, the first assembly portion is provided with a first guide groove for the guide block to be embedded in, and the second sealing ring is provided with a second guide groove for the guide block to be embedded in.

[0013] By adopting the above technical solution, the guide block is fixed on the inner wall of the accommodating cavity and arranged along the length direction. The function of the guide block is to provide directional guidance and positioning for the connector component during the assembly process to ensure that the component can be accurately installed in the predetermined position, such as the first assembly part and the second sealing ring. The first assembly part slides along the length direction of the guide block through the first guide groove, and the second sealing ring slides along the length direction of the guide block through the second guide groove. Through the design of the guide block and the guide groove, the various components of the connector can be effectively guided and positioned during assembly to ensure that they are aligned in the correct position and direction, thereby improving the assembly efficiency and accuracy of the connector.

[0014] Optionally, a second limiting block is provided on the inner wall of the accommodating cavity, and the first assembly portion is provided with a second limiting groove for the second limiting block to be embedded in.

[0015] By adopting the above technical solution, the provision of the second limit block and the second limit groove further strengthens the positioning and support of the connector during the assembly process, ensuring that the various components of the connector can be accurately and stably installed in the correct position, thereby improving the assembly accuracy and reliability of the connector. This design can help minimize errors in the assembly process and ensure that the components of the connector cooperate and work with each other as expected.

[0016] Optionally, a first guiding inclined surface is arranged on the first limiting block.

[0017] By adopting the above technical solution, the first guiding bevel serves as a bevel structure, and the function of the first guiding bevel is to guide and position the connector during assembly to ensure correct assembly.

[0018] Optionally, a second guiding slope is provided on the second limiting block.

[0019] By adopting the above technical solution, the second guiding bevel serves as a bevel structure. When the connector is assembled, the second guiding bevel can guide the second limiting block in the first assembly part to correctly enter the second limiting groove and make the positioning of the second limiting block more accurate.

[0020] Optionally, a plurality of spring sheets are provided on the first assembly portion, a positioning block is provided on a side of the spring sheet close to the coaxial line, and the coaxial line is provided with a positioning groove for the positioning block to be embedded in.

[0021] By adopting the above technical solution, when the coaxial line is assembled on the first assembly part, the positioning block on the spring sheet is embedded in the positioning groove of the coaxial line, and the restraining interaction between the positioning block and the positioning groove ensures the correct positioning and fixation of the coaxial line.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The connector comprises a shell, a plastic front shell and a plastic back cover. The plastic front shell is located at one end of the shell and is used to close the front of the connector. The plastic back cover is combined with the shell to form a rear sealing part of the connector. A first sealing ring is installed between the shell and the plastic front shell, and a second sealing ring is installed between the shell and the plastic back cover. The first sealing ring and the second sealing ring are used to ensure the airtightness of the connector and prevent external liquid or impurities from entering the interior of the connector. When assembling the connector, the signal module and the power module are first fixed to the first assembly part of the plastic front shell, and the first sealing ring is matched with the first sealing groove. When the first assembly part is embedded in the accommodating cavity, the first abutting part on the plastic front shell is tightly pressed against the first sealing ring, further strengthening the sealing of the connector. Then the second sealing ring and the plastic back cover are successively installed on the shell. The front and rear of the connector are effectively sealed and protected, ensuring the stable airtightness of the connector in a dynamic environment, thereby protecting the internal signal and power modules from the influence of the external environment.

[0024] 2. The shell cooperates with the second sealing ring and the second sealing groove to further improve the air tightness of the connector, and the coaxial line and the electronic wire are fixed on the second sealing ring and the second sealing part of the plastic back cover. The plastic back cover seals the accommodating cavity of the connector through the second sealing part, and abuts against the second sealing ring through the second abutting part to ensure the air tightness of the connector. In addition, a second assembly part is fixed on the plastic back cover, and the second assembly part is fixed to the shell through the first detachable component. The connector not only has good air tightness and stability, but also takes effective sealing and fixation into consideration when handling the coaxial line and the electronic wire, which is beneficial to improving the adaptability of the connector so that the connector can operate reliably in various working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an exploded view of a wiring harness connector in an embodiment of the present application;

[0026] Figure 2 is an exploded view of the plastic front shell and the outer shell in the embodiment of the present application;

[0027] Figure 3 is an exploded view of the plastic front housing and the power module in the embodiment of the present application;

[0028] Figure 4 is a cross-sectional view of the plastic front shell and outer shell in an embodiment of the present application;

[0029] Figure 5 is a cross-sectional view of the first assembly portion and the housing in an embodiment of the present application;

[0030] Figure 6 is a cross-sectional view of the housing and the second sealing ring in an embodiment of the present application;

[0031] Figure 7 is an exploded view of the second sealing ring and the housing in the embodiment of the present application;

[0032] Figure 8 It is an exploded view of the second sealing ring and the plastic back cover in the embodiment of the present application.

[0033] Description of reference numerals:

[0034] 1. Shell; 2. Plastic front shell; 3. Plastic back cover; 4. First sealing ring; 5. Second sealing ring; 6. Signal module; 7. Power module; 8. Accommodating chamber; 9. First assembly part; 10. First sealing part; 11. First abutting part; 12. First chamber; 13. Second chamber; 14. First sealing groove; 15. Coaxial line; 16. Electronic wire; 17. Second sealing groove; 18. First through hole; 19. Second through hole; 20. Second Sealing portion; 21. second abutting portion; 22. second assembly portion; 23. third through hole; 24. fourth through hole; 25. first detachable component; 26. first limiting block; 27. first limiting groove; 28. guide block; 29. ​​first guide groove; 30. second guide groove; 31. second limiting block; 32. second limiting groove; 33. first guiding inclined surface; 34. second guiding inclined surface; 35. spring piece; 36. positioning block; 37. positioning groove. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0039] The embodiment of the present application discloses a wiring harness connector with stable air tightness.

[0040] Reference Figure 1 A wiring harness connector with stable airtightness comprises a housing 1 having an accommodating cavity 8, a plastic front housing 2, a plastic back cover 3, a first sealing ring 4, a second sealing ring 5, a signal module 6, a power module 7, a coaxial line 15 and an electronic line 16. The plastic housing 1 is mounted at one end of the housing 1, the plastic back cover 3 is mounted on the side of the housing 1 away from the plastic front housing 2, the first sealing ring 4 is mounted between the housing 1 and the plastic front housing 2, the second sealing ring 5 is mounted between the housing 1 and the plastic back cover 3, the signal module 6 and the power module 7 are mounted in the plastic front housing 2, and then the plastic front housing 2 is assembled with the housing 1, the coaxial line 15 is connected to the signal module 6, and the electronic line 16 is connected to the power module 7.

[0041] For ease of understanding, the assembly of the outer shell 1 and the plastic front shell 2 is described below:

[0042] Reference Figure 2 The plastic front shell 2 includes a first assembly portion 9, a first sealing portion 10, and a first abutting portion 11. The first assembly portion 9 is used to be embedded in the accommodating cavity 8. The first sealing portion 10 is used to cover the accommodating cavity 8. The first abutting portion 11 is used to abut against the first sealing ring 4. The first assembly portion 9 is provided with a first chamber 12 for embedding the signal module 6 and a second chamber 13 for embedding the power module 7. The housing 1 is provided with a first sealing groove 14 for embedding the first sealing ring 4. The first sealing ring 4 is installed between the housing 1 and the plastic front shell 2. It is used to ensure the airtightness of the connector and prevent external liquid or impurities from entering the interior of the connector. When assembling the connector, first fix the signal module 6 and the power module 7 to the first assembly part 9 of the plastic front shell 2, and the first sealing ring 4 cooperates with the first sealing groove 14. When the first assembly part 9 is embedded in the accommodating cavity 8, the first abutting part 11 on the plastic front shell 2 is tightly abutted against the first sealing ring 4, further strengthening the sealing of the connector. Then, the second sealing ring 5 and the plastic back cover 3 are installed on the shell 1 in sequence, and the front and rear of the connector are effectively sealed and protected.

[0043] Among them, Figure 3 As shown, the specific fixing structure of the coaxial line 15 and the first assembly part 9 is explained: a plurality of spring sheets 35 are fixed on the first assembly part 9, and a positioning block 36 is fixed on the side of each spring sheet 35 close to the coaxial line 15. When the coaxial line 15 is assembled on the first assembly part 9, the positioning block 36 on the spring sheet 35 is embedded in the positioning groove 37 of the coaxial line 15. The restrictive interaction between the positioning block 36 and the positioning groove 37 ensures the correct positioning and fixation of the coaxial line 15. It should be noted that the assembly method of the electronic wire 16 and the coaxial line 15 is similar and will not be explained here.

[0044] Then, if Figure 4 and Figure 5As shown, the fixing structure of the first assembly part 9 and the accommodating cavity 8 of the housing 1 is explained. A guide block 28 is fixed inside the accommodating cavity 8 along the length direction. The guide block 28 is fixed on the inner wall of the accommodating cavity 8 and arranged along the length direction. The function of the guide block 28 is to provide directional guidance and positioning for the connector component during the assembly process to ensure that the component can be accurately installed in a predetermined position. For example, the first assembly part 9 and the first assembly part 9 slides along the length direction of the guide block 28 through the first guide groove 29. Through the design of the guide block 28 and the first guide groove 29, the various components of the connector can be effectively guided and positioned during assembly. Ensure that they are aligned in the correct position and direction, thereby improving the assembly efficiency and accuracy of the connector; a second limit block 31 is fixed to the inner wall of the accommodating cavity 8, and the first assembly part 9 is provided with a second limit groove 32 for the second limit block 31 to be embedded. The provision of the second limit block 31 and the second limit groove 32 further strengthens the positioning and support of the connector during the assembly process, ensuring that the various components of the connector can be accurately and stably installed in the correct position, and improving the assembly accuracy and reliability of the connector. This design can help minimize the errors in the assembly process and ensure that the components of the connector cooperate and work with each other in the expected manner. Among them, in order to improve the accuracy of the guidance of the second limit block 31, a second inclined plane is provided on the second limit block 31. The second guiding inclined plane 34 is a inclined plane structure. When the connector is assembled, the second guiding inclined plane 34 can guide the second limit block 31 in the first assembly part 9 to correctly enter the second limit groove 32, and make the positioning of the second limit block 31 more accurate.

[0045] For ease of understanding, the assembly of the housing 1 and the plastic back cover 3 is described below:

[0046] Reference Figure 6 and Figure 7 The housing 1 is provided with a second sealing groove 17 for the second sealing ring 5 to be embedded. The housing 1 cooperates with the second sealing ring 5 and the second sealing groove 17 to further improve the air tightness of the connector. The second sealing ring 5 is provided with a first through hole 18 for the coaxial line 15 to pass through and a second through hole 19 for the electronic line 16 to pass through. The coaxial line 15 and the electronic line 16 are both fixed on the second sealing ring 5 and the second sealing portion 20 of the plastic back cover 3. In order to further improve the assembly accuracy of the second sealing ring 5, a second guide groove 30 is provided on the second sealing ring 5, so that the second sealing ring 5 can slide along the length direction of the guide block 28 through the second guide groove 30, so that the second sealing ring 5 can be installed in the accommodating cavity 8.

[0047] Specifically, the plastic back cover 3 includes a second sealing portion 20, a second abutting portion 21 and a second assembly portion 22. The second sealing portion 20 is provided with a third through hole 23 for the coaxial line 15 to pass through and a fourth through hole 24 for the electronic line 16 to pass through. The second assembly portion 22 is fixed to the housing 1 through a first detachable component 25. The plastic back cover 3 seals the accommodating cavity 8 of the connector through the second sealing portion 20, and is tightly abutted against the second sealing ring 5 through the second abutting portion 21 to ensure the airtightness of the connector. In addition, a second assembly portion 22 is fixed to the plastic back cover 3. The second assembly portion 22 is provided with a third through hole 23 for the coaxial line 15 to pass through and a fourth through hole 24 for the electronic line 16 to pass through. The second assembly portion 22 is fixed to the housing 1 through a first detachable component 25. The connector is fixed to the housing 1 through a first detachable component 25, wherein the second sealing portion 20 is used to seal the accommodating cavity 8, the second abutting portion 21 is fixed to the second sealing portion 20 on the side close to the second sealing ring 5 and abuts against the second sealing ring 5, and the second assembly portion 22 is fixed on both sides of the second sealing portion 20 and is used to be fixed to the housing 1. The connector not only has good air tightness and stability, but also takes effective sealing and fixation into consideration when handling the coaxial line 15 and the electronic line 16, which is beneficial to improving the adaptability of the connector so that the connector can operate reliably in various working environments.

[0048] Among them, Figure 7 and Figure 8 As shown, the first detachable component 25 is explained. The first detachable component 25 includes a first limit block 26 and a first limit groove 27. The first limit block 26 is fixed to the side of the shell 1 close to the second assembly part 22. The function of the first limit block 26 is to provide position limitation and fixed support when the connector is assembled. The first limit groove 27 is opened on the first assembly part 9. The function of the first limit groove 27 is to accommodate and cooperate with the first limit block 26 to ensure that the connector component is in the correct position. Through the design of the first limit block 26 and the first limit groove 27, the assembly of the shell 1 and the plastic back cover 3 is limited to the correct position and direction, thereby ensuring that the connector can be accurately and stably aligned and fixed during assembly. In order to improve the assembly accuracy of the first limit block 26, a first guide bevel 33 is provided on the first limit block 26. The first guide bevel 33 is a bevel structure. The function of the first guide bevel 33 is to guide and position the connector during assembly to ensure correct assembly.

[0049] The implementation principle of a wire harness connector with stable air tightness in the embodiment of the present application is as follows: the connector includes a shell 1, a plastic front shell 2 and a plastic back cover 3. The plastic front shell 2 is located at one end of the shell 1 and is used to close the front of the connector. The plastic back cover 3 is combined with the shell 1 to form a rear sealing part of the connector. A first sealing ring 4 is installed between the shell 1 and the plastic front shell 2, and a second sealing ring 5 is installed between the shell 1 and the plastic back cover 3. The first sealing ring 4 and the second sealing ring 5 are used to ensure the air tightness of the connector to prevent external liquids or impurities from entering the connector. When assembling the connector First, fix the signal module 6 and the power module 7 to the first assembly part 9 of the plastic front shell 2, and the first sealing ring 4 cooperates with the first sealing groove 14. When the first assembly part 9 is embedded in the accommodating cavity 8, the first abutting part 11 on the plastic front shell 2 is tightly abutted against the first sealing ring 4, further strengthening the sealing of the connector. Then, the second sealing ring 5 and the plastic back cover 3 are successively installed on the shell 1. The front and rear of the connector are effectively sealed and protected, ensuring the stable airtightness of the connector in a dynamic environment, thereby protecting the internal signal and power module 7 from the influence of the external environment.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wiring harness connector with stable air tightness, characterized in that: The invention comprises a housing (1) having a receiving cavity (8), a plastic front housing (2) arranged at one end of the housing (1), a plastic back cover (3) arranged at a side of the housing (1) away from the plastic front housing (2), a first sealing ring (4) arranged between the housing (1) and the plastic front housing (2), a second sealing ring (5) arranged between the housing (1) and the plastic back cover (3), a signal module (6) and a power module (7); the plastic front housing (2) comprises a first assembly portion (9) for embedding into the receiving cavity (8), a cover (9) for embedding into the receiving cavity (8), and a second sealing ring (5) for embedding into the receiving cavity (8). The first assembly portion (9) is provided with a first sealing portion (10) for engaging with the accommodating cavity (8), and a first abutting portion (11) for abutting against the first sealing ring (4); the first assembly portion (9) is provided with a first chamber (12) for embedding the signal module (6) and a second chamber (13) for embedding the power module (7); the housing (1) is provided with a first sealing groove (14) for embedding the first sealing ring (4); when the first assembly portion (9) is embedded in the accommodating cavity (8), the first abutting portion (11) abuts against the first sealing ring (4).

2. The wire harness connector with stable airtightness according to claim 1, characterized in that: The plastic back cover (3) further comprises a coaxial line (15) connected to the signal module (6) and an electronic line (16) connected to the power module (7); the housing (1) is provided with a second sealing groove (17) for the second sealing ring (5) to be embedded; the second sealing ring (5) is provided with a first through hole (18) for the coaxial line (15) to pass through and a second through hole (19) for the electronic line (16) to pass through; the plastic back cover (3) comprises a second sealing portion (20) for sealing the accommodating cavity (8), a second sealing portion (21) provided on the second sealing ring (5); The sealing portion (20) comprises a second abutting portion (21) close to one side of the second sealing ring (5) and tightly abutting against the second sealing ring (5), and a second assembly portion (22) arranged on both sides of the second sealing portion (20) and used for fixing to the housing (1); the second sealing portion (20) is provided with a third through hole (23) for the coaxial line (15) to pass through and a fourth through hole (24) for the electronic line (16) to pass through; and the second assembly portion (22) is fixed to the housing (1) via a first detachable component (25).

3. The wire harness connector with stable airtightness according to claim 2, characterized in that: The first detachable component (25) comprises a first limit block (26) arranged on a side of the housing (1) close to the second assembly portion (22), and a first limit groove (27) arranged on the second assembly portion (22) and for the first limit block (26) to be embedded in.

4. The wire harness connector with stable airtightness according to claim 2, characterized in that: A guide block (28) is fixed to the inner wall of the accommodating cavity (8) along the length direction; the first assembly portion (9) is provided with a first guide groove (29) for the guide block (28) to be embedded in; and the second sealing ring (5) is provided with a second guide groove (30) for the guide block (28) to be embedded in.

5. The wire harness connector with stable airtightness according to claim 2, characterized in that: The inner wall of the accommodating cavity (8) is provided with a second limiting block (31), and the first assembly portion (9) is provided with a second limiting groove (32) for the second limiting block (31) to be embedded.

6. The wire harness connector with stable airtightness according to claim 3, characterized in that: The first limiting block (26) is provided with a first guiding inclined surface (33).

7. The wire harness connector with stable airtightness according to claim 5, characterized in that: The second limiting block (31) is provided with a second guiding inclined surface (34).

8. The wire harness connector with stable airtightness according to claim 2, characterized in that: A plurality of spring sheets (35) are arranged on the first assembly portion (9), a positioning block (36) is arranged on one side of the spring sheet (35) close to the coaxial line (15), and the coaxial line (15) is provided with a positioning groove (37) for the positioning block (36) to be embedded.

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