A socket connector with short axial dimension contact mix loading
By employing an insulator assembly structure and interference fit sealing in the socket connector, the problems of high contact resistance, low signal strength, complex structure, and poor reliability in the prior art are solved, achieving efficient signal transmission and structural simplification, reducing costs and improving the reliability of the socket.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-06-16
AI Technical Summary
The glass sintering sealing method of the contacts in existing sealed sockets leads to increased contact resistance, reduced signal strength, complex structure, high cost, and low reliability. In addition, the glass is prone to cracking and leakage, the axial dimension of the socket is too long, and the low-frequency contacts are prone to bending and deformation.
The use of an insulator assembly structure to replace the glass sintering process simplifies the number of transitions in the contact components. Sealing is achieved through the interference fit between the insulating sleeve and the conductor, reducing contact resistance and improving reliability. The structure is simplified and the axial dimension is shortened.
It enables efficient through-wall connection of low-frequency signals, differential signals, and radio frequency signals, reduces contact resistance and signal interference, improves socket reliability, simplifies structure, shortens axial dimensions, avoids air leakage due to glass cracks, and reduces costs.
Smart Images
Figure CN224367187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, specifically a socket connector with mixed short axial dimension contact elements. Background Technology
[0002] The circular sealed socket with mixed contact elements can realize the connection and transmission of multiple signals through walls, such as simultaneously realizing the connection and transmission of low-frequency signals, differential signals, and radio frequency signals through walls. Figure 1 As shown, in existing sealed sockets, each contact or contact assembly achieves a seal between itself and the socket housing 1 via an outer glass disc 14. The dual-pin RF contact inside the existing single-core RF contact assembly 17 is sealed to the outer conductor of the single-core RF contact assembly via an internal glass sintering process. Both ends of the dual-pin RF contact require adapter components 15 before being connected to the single-core RF contact or cable assembly at the plug end. This internal glass sintering sealing method requires adapter components at both ends of the RF contact. On one hand, this increases the number of internal adapters (requiring three internal adapters) within the current mixed-contact circular sealed socket, increasing contact resistance and causing signal strength reduction and interference. On the other hand, to fix and seal the adapter components on both sides of the RF contact, insulators and other components need to be assembled on both sides of the outer glass disc, resulting in a complex internal structure, increased parts, longer axial dimensions, larger volume, increased cost, and reduced reliability. Furthermore, in the above structure, the axial length of the outer glass disc recessed into the socket housing is relatively long, resulting in a longer exposed portion of the low-frequency contact, which is prone to bending and deformation. Simultaneously, the RF contact is sealed between the inner glass disc 16 and the outer conductor of the single-core RF contact. Since glass is brittle, if the contact is subjected to accidental impact during use, it is highly susceptible to cracking, leading to air leakage and potentially a major accident. Summary of the Invention
[0003] To overcome the shortcomings of the prior art, this utility model provides a socket connector with mixed short-axial-dimensional contact components. It can simultaneously achieve through-wall connection and transmission of low-frequency signals, differential signals, and radio frequency signals. The single-core and multi-core radio frequency contact components employ an insulator assembly structure, which not only facilitates assembly but also avoids the leakage caused by cracks in the glass disc due to accidental impacts during use, a problem that often occurs with glass-sealed single-core and multi-core radio frequency contact components. Furthermore, it reduces the number of transitions between single-core and multi-core radio frequency contact components within the socket, lowers contact resistance, improves socket reliability, simplifies the internal structure, shortens the overall axial dimension of the socket, and reduces the exposed portion of the low-frequency contact, making it less prone to bending and deformation.
[0004] This utility model is specifically achieved through the following technical solution: A socket connector with mixed short-axial-dimensional contacts, according to this utility model, includes a socket housing. The socket housing contains a low-frequency contact, a differential contact assembly, a single-core RF contact assembly, and a multi-core RF contact assembly. The single-core RF contact assembly includes a single-core RF contact outer conductor, an insulator, and an RF contact. The multi-core RF contact assembly includes a multi-core single-core RF contact outer conductor, an intermediate conductor, and a center conductor. Insulating sleeves are provided between the intermediate conductor and the multi-core single-core RF contact outer conductor, and between the intermediate conductor and the center conductor. The low-frequency contact, differential contact assembly, single-core RF contact outer conductor, and multi-core single-core RF contact outer conductor are disposed within the socket housing via glass discs. Specifically, the low-frequency contact, differential contact outer conductor, single-core RF contact outer conductor, and multi-core single-core RF contact outer conductor are disposed within the socket housing via a first glass disc, and the differential contact is disposed within the differential contact outer conductor via a second glass disc.
[0005] Furthermore, both the outer conductor and the insulator of the single-core radio frequency contact include a large-diameter section and a small-diameter section, and the small-diameter section of the outer conductor and the small-diameter section of the insulator are located at the socket mating end, while the large-diameter section is used to connect cables.
[0006] Furthermore, the two ends of the radio frequency contact are a socket end and a pin end, respectively, with the socket end being the mating end of the single-core radio frequency contact assembly.
[0007] Furthermore, the outer conductor mating end of the single-core RF contact is also provided with an insulating end cap, and the end of the RF contact socket is located in the insulating end cap.
[0008] Furthermore, the outer wall of the radio frequency contact and the outer wall of the insulator are provided with several protruding structures. These protruding structures enable a stable interference fit to be formed between the radio frequency contact and the insulator, as well as between the insulator and the outer conductor of the single-core radio frequency contact, thereby achieving a seal.
[0009] Furthermore, the multi-core RF contact assembly includes a left outer conductor and a left middle conductor. A left outer insulating sleeve is installed between the left outer conductor and the left middle conductor, and a left inner insulating sleeve is installed between the left middle conductor and the center conductor. The left outer insulating sleeve, the left middle conductor, and the left inner insulating sleeve are sequentially fitted into the left outer conductor, and the center conductor is assembled into the left inner insulating sleeve.
[0010] Furthermore, the outer walls of the left outer insulating sleeve, the left middle conductor, the left inner insulating sleeve, and the center conductor are provided with several protruding structures, so that the left outer conductor, the left outer insulating sleeve, the left middle conductor, the left inner insulating sleeve, and the center conductor are interfering with each other.
[0011] Furthermore, the left outer conductor, left outer insulating sleeve, left middle conductor, and left inner insulating sleeve all have large-diameter sections and small-diameter sections, and the small-diameter sections of the left outer conductor, left outer insulating sleeve, left middle conductor, and left inner insulating sleeve are located at the socket mating end.
[0012] Furthermore, the multi-core RF contact assembly also includes a right outer conductor, a right outer insulating sleeve, a right middle conductor, and a right inner insulating sleeve. The right outer conductor, the right outer insulating sleeve, and the right inner insulating sleeve have large-diameter sections and small-diameter sections, and the small-diameter sections of the right outer conductor, the right outer insulating sleeve, and the right inner insulating sleeve are used for connecting cables. The right inner insulating sleeve, the right middle conductor, the right outer insulating sleeve, and the right outer conductor are sequentially fitted around the center conductor.
[0013] Furthermore, the right inner insulating sleeve is fitted over the center conductor and its large diameter section abuts against the left inner insulating sleeve; one end of the right middle conductor is fitted over the small diameter section of the right inner insulating sleeve and connected to the left middle conductor for conduction, while its other end is axially limited by the right outer insulating sleeve; the right outer insulating sleeve is fitted over the right middle conductor and its large diameter section abuts against the left outer insulating sleeve; the right outer conductor is fitted over the right outer insulating sleeve and welded to the left outer conductor.
[0014] Furthermore, a sealing gasket is provided on the side of the first glass disc facing the socket's mating end.
[0015] Furthermore, the socket is also equipped with a cable adapter structure, through which low-frequency contact components, differential contact component assemblies, single-core RF contact component assemblies, and multi-core RF contact component assemblies are connected to the cable.
[0016] Furthermore, the multi-core radio frequency contact assembly may be a MIL-C-1553B contact assembly.
[0017] Compared with the prior art, this utility model has significant advantages and beneficial effects. Through the above technical solution, this utility model achieves considerable technological advancement and practicality, and has broad application value, possessing at least the following advantages:
[0018] This utility model provides a socket connector with mixed short axial dimension contacts that can simultaneously achieve through-wall connection and transmission of four signals: low-frequency signals, differential signals, radio frequency signals, and MIL-C-1553B signals. The low-frequency signal, differential contact assembly, single-core radio frequency contact outer conductor, and multi-core single-core radio frequency contact outer conductor are sealed to the socket housing through a glass sintering process. The single-core radio frequency contact assembly and multi-core radio frequency contact assembly adopt an insulator assembly structure, which not only facilitates assembly but also avoids the situation where the glass disc cracks due to accidental external impact during use, causing air leakage, which is caused by the glass sintering process used to seal the single-core radio frequency contact assembly and multi-core radio frequency contact assembly. Meanwhile, the mating ends of the single-core and multi-core RF contact assemblies can be directly plugged into the single-core and multi-core RF contact ends of the plug, eliminating the need for additional adapter components inside the socket mating end. This reduces the number of times the single-core and multi-core RF contact assemblies are connected inside the socket, lowers the contact resistance, avoids signal strength reduction and interference between signals, reduces costs, and improves the reliability of the socket. On the other hand, it simplifies the internal structure of the socket, reduces the number of socket parts, shortens the overall axial dimension of the socket, and shortens the exposed part of the low-frequency contact, making it less prone to bending and deformation. Attached Figure Description
[0019] Figure 1 This is a structural diagram of a circular sealed socket in the prior art.
[0020] Figure 2 This is a schematic diagram of the sealing structure of the sealing socket of this utility model.
[0021] Figure 3 yes Figure 2 A magnified view of a portion of the image.
[0022] Figure 4 This is a schematic diagram of the sintering structure inside the sealed socket of this utility model.
[0023] Figure 5 This is a schematic diagram of the outer conductor structure of a single-core radio frequency contact.
[0024] Figure 6 This is a schematic diagram of the radio frequency contact structure.
[0025] Figure 7 This is an exploded view of a multi-core RF contact assembly.
[0026] Figure 8 This is a schematic diagram of the connection between the sealed socket of this utility model and the wiring terminal through the right-end adapter structure.
[0027] Figure 9 This is a schematic diagram showing the connection between the multi-core radio frequency contact assembly and the wiring terminal in the sealed socket of this utility model through the right-end adapter structure.
[0028] [Component and Symbol Explanation]:
[0029] 1-Socket housing, 2-Low-frequency contact, 3-Differential contact assembly, 4-Single-core RF contact assembly, 5-Multi-core RF contact assembly, 6-First glass disc, 7-Second glass disc, 8-Protruding structure, 9-First adapter, 10-Second adapter, 11-Third adapter, 12-Fourth adapter, 13-Sealing gasket, 14-Outer glass disc, 15-Adapter component, 16-Inner glass disc, 17-Original single-core RF contact assembly, 18-Terminal;
[0030] 3.1 - Outer conductor of differential contact; 3.2 - Differential contact;
[0031] 4.1 - Outer conductor of single-core radio frequency contact; 4.2 - Insulator; 4.3 - Radio frequency contact; 4.4 - Stopping step; 4.5 - Insulating end cap;
[0032] 5.1-Left outer conductor, 5.2-Right outer conductor, 5.3-Left middle conductor, 5.4-Right middle conductor, 5.5-Left outer insulating sleeve, 5.6-Right outer insulating sleeve, 5.7-Left inner insulating sleeve, 5.8-Right inner insulating sleeve, 5.9-Center conductor, 5.10-End step, 5.11-First step, 5.12-Second step, 5.13-Third step, 5.14-Boss;
[0033] 11.1 - Adapter housing, 11.2 - Third adapter inner conductor, 12.1 - Fourth adapter inner conductor. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and accompanying drawings. Obviously, the described features are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of this utility model provided in the accompanying drawings is not intended to limit the scope of protection claimed, but merely to illustrate selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments described below without creative effort are within the scope of protection of this utility model.
[0035] It should be noted that the directional terms such as "upper" and "lower" described in this utility model are based only on the directions shown in the accompanying drawings and do not represent any limitation on this utility model.
[0036] like Figure 2As shown, this utility model provides a socket connector with mixed short-axial-dimensional contacts, including a socket housing 1. The socket housing is equipped with a low-frequency contact 2, a differential contact assembly 3, a single-core radio frequency contact assembly 4, and a multi-core radio frequency contact assembly 5. The differential contact assembly includes a differential contact outer conductor 3.1 and a differential contact 3.2. The single-core radio frequency contact assembly includes a single-core radio frequency contact outer conductor 4.1, an insulator 4.2, and a radio frequency contact 4.3. The multi-core radio frequency contact assembly includes a multi-core radio frequency contact outer conductor, an intermediate conductor, and a center conductor. The low-frequency contact, differential contact outer conductor, differential contact, single-core radio frequency contact outer conductor, and multi-core radio frequency contact outer conductor are glass-sintered into a single unit and form a seal with the socket housing. The sintered structure is as follows: Figure 4 As shown. Specifically, the low-frequency contact, the outer conductor of the differential contact, the outer conductor of the single-core RF contact, and the outer conductor of the multi-core RF contact are sealed to the socket housing by a first glass disc 6, and the outer conductor of the differential contact and the differential contact are sealed by a second glass disc 7.
[0037] The radio frequency contact is installed in the insulator and has an interference fit with the insulator. The insulator is installed in the outer conductor of the single-core radio frequency contact and has an interference fit with the outer conductor of the single-core radio frequency contact.
[0038] like Figure 2 As shown, both the outer conductor of the single-core RF contact and the insulator have large-diameter and small-diameter sections. The large-diameter and small-diameter sections of the insulator are respectively assembled in the large-diameter and small-diameter sections of the outer conductor of the single-core RF contact. A stop step 4.4 is formed between the large-diameter and small-diameter sections of the outer conductor of the single-core RF contact, which serves to axially limit the insulator. The small-diameter section of the insulator and the small-diameter section of the outer conductor of the single-core RF contact are located at the socket mating end for direct mating with the single-core RF contact at the plug end, while their large-diameter sections are used to connect cables.
[0039] The radio frequency contact has a socket structure and a pin structure at both ends, respectively defined as a socket end and a pin end. The socket end is assembled onto the small diameter section of the insulator and protrudes from the end. The insulating end cap 4.5 extends from the mating end of the radio frequency contact. Figure 2 The left end (as shown) is inserted into the outer conductor of the single-core RF contact to protect the socket end of the RF contact. In one embodiment, the inner wall of the insulating end cap is conical, which guides the single-core RF contact at the plug end to align with the RF contact at the socket end during head-to-head insertion.
[0040] like Figure 5 and Figure 6 As shown, the outer wall of the middle section of the RF contact and the outer wall of the large diameter section of the insulator are provided with several protruding structures 8, so that a stable interference fit is formed between the RF contact and the insulator and between the insulator and the outer conductor of the single-core RF contact, thereby achieving a seal.
[0041] The multi-core RF contact assembly includes a large-diameter section and a first and a second small-diameter section located at both ends of the large-diameter section. The first small-diameter section is located at the socket mating end. Figure 2 The left end (shown) is used for mating with the multi-core RF contact at the plug end, and the second small diameter section is used for connecting the cable.
[0042] The following explanation uses a multi-core RF contact assembly as an example, specifically a MIL-C-1553B contact assembly. Figure 3 and Figure 7 As shown, the MIL-C-1553B contact assembly includes an outer conductor, an intermediate conductor, and a center conductor. An outer insulating sleeve is fitted between the outer conductor and the intermediate conductor, and an inner insulating sleeve is fitted between the intermediate conductor and the center conductor. For ease of assembly, the outer conductor, intermediate conductor, outer insulating sleeve, and inner insulating sleeve of the MIL-C-1553B contact are all of a separate structure. Specifically, the outer conductor includes a left outer conductor 5.1 and a right outer conductor 5.2; the intermediate conductor includes a left intermediate conductor 5.3 and a right intermediate conductor 5.4; a left outer insulating sleeve 5.5 is fitted between the left outer conductor and the left intermediate conductor; and a right outer insulating sleeve 5.6 is fitted between the right outer conductor and the right intermediate conductor. A left inner insulating sleeve 5.7 is fitted between the left intermediate conductor and the center conductor 5.9; and a right inner insulating sleeve 5.8 is fitted between the right intermediate conductor and the center conductor.
[0043] Furthermore, the left outer conductor, left outer insulating sleeve, left middle conductor, and left inner insulating sleeve of the MIL-C-1553B contact all have large-diameter and small-diameter sections. Similarly, the right outer conductor, right outer insulating sleeve, and right inner insulating sleeve also have large-diameter and small-diameter sections. The small-diameter section of the left outer conductor, left outer insulating sleeve, left middle conductor, and left inner insulating sleeve is located at the socket mating end (…). Figure 2 The left end of the socket (as shown) forms the first small diameter segment for mating with the MIL-C-1553B contact at the plug end, and the small diameter segments of the right outer conductor, right outer insulating sleeve, and right inner insulating sleeve are located at the right end of the socket to form the second small diameter segment.
[0044] The large-diameter section of the left outer conductor is sintered in the first glass disc. The left outer insulating sleeve is interference-fitted into the left outer conductor, and the large-diameter section of the left outer insulating sleeve is limited by the first step 5.11 at the connection between the large-diameter and small-diameter sections of the left outer conductor. The left middle conductor is interference-fitted into the left outer insulating sleeve, and the large-diameter section of the left middle conductor is limited by the second step 5.12 at the connection between the large-diameter and small-diameter sections of the left outer insulating sleeve. The center conductor is interference-fitted into the left inner insulating sleeve and limited by the end step 5.10 of the small-diameter section of the left inner insulating sleeve. The left inner insulating sleeve is interference-fitted into the left middle conductor, and the large-diameter section of the left inner insulating sleeve is limited by the third step 5.13 at the connection between the large-diameter and small-diameter sections of the left middle conductor. The axial lengths of the large-diameter sections of the left inner insulating sleeve, left middle conductor, left outer insulating sleeve, and left outer conductor increase sequentially.
[0045] The right inner insulating sleeve, the right intermediate conductor, the right outer insulating sleeve, and the right outer conductor are sequentially fitted around the center conductor. Specifically, the right inner insulating sleeve is fitted around the center conductor with its large-diameter section abutting against the end of the large-diameter section of the left inner insulating sleeve; one end of the right intermediate conductor is fitted around the small-diameter section of the right inner insulating sleeve and connected to the large-diameter section of the left intermediate conductor for conduction; the other end of the right intermediate conductor is axially limited by the end of the small-diameter section of the right outer insulating sleeve; the right outer insulating sleeve is fitted around the right intermediate conductor with its large-diameter section abutting against the end of the large-diameter section of the left outer insulating sleeve; and the right outer conductor is fitted around the right outer insulating sleeve and welded to the left outer conductor.
[0046] Furthermore, the outer diameter of the right end of the left outer insulating sleeve is smaller than the outer diameter of its large diameter section, so that an installation space is formed between the right end of the left outer insulating sleeve and the right end of the left outer conductor. The large diameter section of the right outer conductor is inserted into this installation space, and a boss 5.14 is also provided on the outer wall of the large diameter section of the right outer conductor. The boss abuts against the end of the large diameter section of the left outer conductor and is welded to the left outer conductor.
[0047] Furthermore, the outer walls of the center conductor, the left inner insulating sleeve, the left middle conductor, and the left outer insulating sleeve are provided with several protruding structures 8, so that a stable interference fit is formed between the center conductor and the left inner insulating sleeve, between the left inner insulating sleeve and the left middle conductor, between the left middle conductor and the left outer insulating sleeve, and between the left outer insulating sleeve and the left outer conductor, thereby achieving a seal.
[0048] In one embodiment, a sealing gasket 13 is further provided inside the socket mating end, the sealing gasket 13 being located on the side of the first glass disc facing the socket mating end. Figure 2 (As shown on the left) settings.
[0049] like Figure 7As shown, in one embodiment, the left end of the left intermediate conductor and the right end of the right intermediate conductor are both socket structures formed by several spring claws, used to form elastic contact with the corresponding contact element to improve the contact force. The center conductor is a double-ended pin contact element.
[0050] like Figure 8 As shown, the socket also includes a cable adapter structure, comprising a first adapter 9 connected to the right end of the low-frequency contact, a second adapter 10 connected to the right end of the differential contact, a third adapter 11 connected to the pin end of the RF contact, and a fourth adapter 12 connected to the right end of the center conductor of the MIL-C-1553B contact assembly. The low-frequency contact is connected to the cable core via the first adapter, and the differential contact is connected to the cable core via the second adapter. Both the first and second adapters utilize existing technology and will not be described further.
[0051] The RF contact pin is connected to the cable core via a third adapter. The third adapter includes an adapter housing 11.1 and a third adapter inner conductor 11.2. An insulator is provided between the adapter housing and the third adapter inner conductor. The three ends of the third adapter inner conductor are socket structures, one end of which is used to connect to the RF contact pin and the other end is used to connect to the cable core.
[0052] Through the aforementioned single-core RF contact component structure, a connection is formed between the RF contact plug end (i.e., the RF contact socket end) in the socket and the single-core RF contact at the plug end; a connection is formed between the RF contact in the socket and the third adapter; and a connection is formed between the third adapter and the cable core.
[0053] Similarly, the right end of the center conductor of the MIL-C-1553B contact assembly is connected to the cable core via a fourth adapter. The fourth adapter 12 includes a fourth adapter inner conductor 12.1, both ends of which are socket structures. One end is connected to the right end of the center conductor of the MIL-C-1553B contact assembly, and the other end is connected to the cable core. The remaining structure is not described in detail. Through the above MIL-C-1553B contact assembly structure, a primary connection is formed between the MIL-C-1553B contact mating end in the socket and the MIL-C-1553B contact at the plug end. A primary connection is formed between the MIL-C-1553B contact in the socket and the fourth adapter, and a primary connection is formed between the fourth adapter and the cable core.
[0054] Therefore, the total number of connection transitions for both the single-core and multi-core RF contacts in this socket is three. Compared to the original single-core and multi-core RF contact assemblies, this reduces two internal transitions (the original single-core and multi-core RF contact assemblies required transition pieces at both ends, necessitating three internal transitions). Thus, this invention reduces the number of internal transitions, lowers the contact resistance, avoids signal strength degradation and interference, reduces costs, and improves the socket's reliability. Simultaneously, the socket's mating end (i.e....) Figure 2 The left side of the first glass disc (as shown) no longer requires the left-side adapter for single-core and multi-core RF contact assemblies, nor the insulating components for fixing and supporting the left-side adapter. This simplifies the internal structure of the socket, reduces the number of socket parts, and shortens the axial dimension of the socket, especially the axial dimension of the socket's mating end (i.e., Figure 2 The axial dimension of the left side of the first glass disc shown) shortens the exposed portion of the low-frequency contact to 5.9 mm (the exposed portion of the low-frequency contact in the original socket was 15.6 mm, as shown). Figure 1 As shown in the figure, it is not prone to bending deformation.
[0055] The above description is merely an embodiment of this utility model and is not intended to limit the utility model in any way. This utility model can also have other embodiments based on the above structure and function, which will not be listed hereafter. Therefore, any simple modifications, equivalent changes, and alterations made by those skilled in the art to the above embodiments based on the technical essence of this utility model without departing from the scope of the utility model's technical solution shall still fall within the scope of the utility model's technical solution.
Claims
1. A short-axial-dimension contact mixed-assembly socket connector comprising a socket housing, a low-frequency contact (2) and a differential contact assembly (3) being arranged in the socket housing, characterized in that, The socket housing is also provided with a single-core radio frequency contact assembly (4) and a multi-core radio frequency contact assembly (5). The single-core radio frequency contact assembly includes a single-core radio frequency contact outer conductor (4.1), an insulator (4.2), and a radio frequency contact (4.3). The multi-core radio frequency contact assembly includes a multi-core single-core radio frequency contact outer conductor, an intermediate conductor, and a center conductor (5.9). Insulating sleeves are provided between the intermediate conductor and the multi-core single-core radio frequency contact outer conductor, as well as between the intermediate conductor and the center conductor. The low-frequency contact, differential contact assembly, single-core radio frequency contact outer conductor, and multi-core single-core radio frequency contact outer conductor are disposed in the socket housing through glass discs.
2. The short-axial dimension contact-mixed socket connector of claim 1, wherein: The outer conductor and insulator of the single-core radio frequency contact both include a large-diameter section and a small-diameter section. The small-diameter section of the outer conductor and the small-diameter section of the insulator are located at the socket mating end, while the large-diameter section is used to connect cables.
3. The short-axial dimension contact-mixed socket connector according to claim 1 or 2, characterized by: The two ends of the RF contact are a socket end and a pin end, respectively, with the socket end located at the mating end of the single-core RF contact assembly.
4. The short-axial dimension contact-mixed socket connector of claim 3, wherein: The outer conductor mating end of the single-core RF contact is also provided with an insulating end cap (4.5), and the end of the RF contact socket is located in the insulating end cap.
5. The short-axial-length contact-mixed socket connector of claim 1 or 2, wherein: The outer wall of the RF contact and the outer wall of the insulator are provided with several protruding structures (8). Through these protruding structures, a stable interference fit is formed between the RF contact and the insulator, and between the insulator and the outer conductor of the single-core RF contact.
6. The short-axial dimension contact-mixed socket connector of claim 1, wherein: The multi-core RF contact assembly includes a left outer conductor (5.1) and a left middle conductor (5.3). A left outer insulating sleeve (5.5) is installed between the left outer conductor and the left middle conductor. A left inner insulating sleeve (5.7) is installed between the left middle conductor and the center conductor (5.9). The left outer insulating sleeve, the left middle conductor, and the left inner insulating sleeve are sequentially fitted into the left outer conductor, and the center conductor is assembled into the left inner insulating sleeve.
7. The short-axial dimension contact-mixed socket connector of claim 6, wherein: The outer walls of the left outer insulating sleeve, the left middle conductor, the left inner insulating sleeve and the center conductor are provided with several protruding structures (8), so that the left outer conductor, the left outer insulating sleeve, the left middle conductor, the left inner insulating sleeve and the center conductor are interferometrically assembled.
8. The short-axial dimension contact-mixed socket connector of claim 6, wherein: The left outer conductor, left outer insulating sleeve, left middle conductor, and left inner insulating sleeve all have large-diameter and small-diameter sections, and the small-diameter sections of the left outer conductor, left outer insulating sleeve, left middle conductor, and left inner insulating sleeve are located at the socket mating end.
9. The short-axial dimension contact-mixed socket connector of Claim 6 or 8, wherein: The multi-core RF contact assembly also includes a right outer conductor (5.2), a right outer insulating sleeve (5.6), a right middle conductor (5.4), and a right inner insulating sleeve (5.8). The right outer conductor, the right outer insulating sleeve, and the right inner insulating sleeve have large-diameter sections and small-diameter sections. The small-diameter sections of the right outer conductor, the right outer insulating sleeve, and the right inner insulating sleeve are used to connect cables. The right inner insulating sleeve, the right middle conductor, the right outer insulating sleeve, and the right outer conductor are sequentially fitted around the center conductor.
10. The short-axial dimension contact-mixed socket connector of claim 9, wherein: The right inner insulating sleeve is fitted outside the center conductor and its large diameter section abuts against the left inner insulating sleeve. One end of the right middle conductor is fitted outside the small diameter section of the right inner insulating sleeve and connected to the left middle conductor for conduction. Its other end is axially limited by the right outer insulating sleeve. The right outer insulating sleeve is fitted outside the right middle conductor and its large diameter section abuts against the left outer insulating sleeve. The right outer conductor is fitted outside the right outer insulating sleeve and welded to the left outer conductor.
11. The short-axial dimension contact-mixed socket connector of claim 1, wherein: The low-frequency contact, differential contact assembly, single-core RF contact outer conductor and multi-core single-core RF contact outer conductor are disposed in the socket housing through the first glass disc (6), and a sealing gasket (13) is provided on the side of the first glass disc facing the socket mating end.
12. The short-axial dimension contact-mixed socket connector of claim 1, wherein: The socket also has a cable adapter structure, through which low-frequency contacts, differential contact assemblies, single-core RF contact assemblies, and multi-core RF contact assemblies are connected to the cable.