High-low frequency mixed connector ground isolation ring

Abstract

This application relates to a grounding isolation ring for high- and low-frequency mixed-assembly connectors, and pertains to the field of high- and low-frequency mixed-assembly connectors. It includes a socket and mating first and second connecting plugs. The socket includes a housing, a grounding isolation ring, a high-frequency connecting socket, and a low-frequency connecting socket. The grounding isolation ring is mounted on the head of the housing and is fixedly connected to it. The high-frequency and low-frequency connecting sockets are respectively mounted at the upper and lower ends of the grounding isolation ring, and both are fixedly connected to it. The first connecting plug includes an upper cover plate assembly and a corresponding insertion rod end to the high-frequency connecting socket. This application, through the I-shaped structure of the grounding isolation ring and the placement of a ferrite magnetic ring, forms a natural electromagnetic barrier and a specific frequency band interference absorption device, effectively isolating interference between high- and low-frequency signals.

Description

Technical Field

[0001] This application relates to the technical field of high- and low-frequency mixed connectors, and in particular to grounding isolation rings for high- and low-frequency mixed connectors. Background Technology

[0002] With the rapid development of technologies such as 5G communication, the Internet of Things, and high-speed data transmission, electronic devices are increasingly demanding higher signal transmission rates and stability. High- and low-frequency mixed-signal connectors, as key components for enabling the co-transmission of multiple signals, are widely used in modern communication equipment, aerospace, and medical electronics. The core challenge of these connectors lies in the fact that when high-frequency signals (such as millimeter-wave and radio frequency signals) and low-frequency signals (such as power and control signals) coexist in the same interface, due to electromagnetic coupling effects, high-frequency signals are highly susceptible to interference from low-frequency signals, leading to signal integrity degradation and increased bit error rate.

[0003] While the industry commonly employs multi-layer PCB design and differential signal transmission technologies to enhance anti-interference capabilities, signal isolation remains a significant challenge at the crucial connector interface. High-frequency signals have short wavelengths, demanding extremely high integrity in electromagnetic shielding; even minute gaps or impedance discontinuities can lead to signal reflection and crosstalk. Furthermore, the increasing miniaturization of devices and the resulting compression of internal connector space further complicate the implementation of traditional isolation methods.

[0004] Existing solutions for high- and low-frequency signal isolation can be summarized into three main categories:

[0005] The first type is based on overall shielding, typically using a nickel-plated copper alloy or stainless steel integrated metal shield. This type of solution only blocks external noise and is almost ineffective for near-field coupling between high-frequency signals and low-frequency power lines inside the connector. More seriously, the metal shield introduces additional parasitic capacitance, causing a decrease in the edge rate of high-frequency signals. The second type is based on physical separation, mainly by injection molding metal partitions or ceramic partitions onto the connector insulation body. The separation structure requires a lot of space, increasing the connector width by more than 30%, which cannot meet the stringent requirements of ultra-thin designs in consumer electronics products; at the same time, rigid partitions limit the floating compensation capability of the terminals, easily causing contact failure in vibration environments. The third type is based on flexible conductive materials. In practical applications, conductive fillers will shed particles after repeated insertion and removal, leading to an increase in contact resistance. Organic substrates will undergo permanent deformation after working in high-temperature environments, losing their resilience and causing a decrease in shielding effectiveness. Summary of the Invention

[0006] To ensure the interference-free and stable use of high- and low-frequency mixed connectors, this application provides a grounding isolation ring for high- and low-frequency mixed connectors.

[0007] The grounding isolation ring for the high- and low-frequency mixed connector provided in this application adopts the following technical solution:

[0008] A high- and low-frequency mixed connector grounding isolation ring includes a socket and a mating first and second connecting plug. The socket includes a housing, a grounding isolation ring, a high-frequency connecting socket, and a low-frequency connecting socket. The grounding isolation ring is installed at the head of the housing and is fixedly connected to the housing. The high-frequency and low-frequency connecting sockets are respectively installed at the upper and lower ends of the grounding isolation ring and are both fixedly connected to the grounding isolation ring. The first connecting plug includes an upper cover plate assembly and a plug end corresponding to the high-frequency connecting socket. The plug end is evenly installed on the inner side of the upper cover plate assembly along the circumferential direction and is fixedly connected to the upper cover plate assembly. The second connecting plug includes a lower cover plate assembly and a plug plate end corresponding to the low-frequency connecting socket. The plug plate end is fixedly installed on the inner side of the lower cover plate assembly.

[0009] By adopting the above technical solution, the socket, in conjunction with the first and second connecting plugs, enables composite connections suitable for both high-frequency and low-frequency circuits. The socket's design, consisting of a housing, a grounding isolation ring, a high-frequency connector, and a low-frequency connector, ensures that the housing serves as an external protective shell. The grounding isolation ring allows for separate installation of the high-frequency and low-frequency connectors. By installing the high-frequency and low-frequency connectors at their respective ends of the grounding isolation ring and using corresponding plugs, separate transmission of high and low frequency signals is achieved. Furthermore, the isolation ring's structural design forms a natural electromagnetic barrier, and the embedded materials within it absorb interference in specific frequency bands, effectively reducing mutual interference. This avoids mutual interference between high and low frequency signals, improving the stability and reliability of signal transmission. The first connecting plug's design, with a cover plate and a plug end working together, allows for the connection of high-frequency signal lines during installation. When the plug end is inserted into the high-frequency connector, stable high-frequency signal transmission is achieved, and the cover plate provides protection at the upper part of the connection. Similarly, the second connector is designed with a structure in which the lower cover plate and the plug end cooperate, so that a low-frequency signal line can be connected to the second connector during use. When the plug end is inserted into the low-frequency connector, the purpose of stable transmission of low-frequency signal can be achieved. The lower cover plate can shield and protect the lower end of the connection.

[0010] Optionally, the housing includes a front housing, a connecting housing, and a wiring tail housing. The front housing and the wiring tail housing are disposed at the front and rear ends of the connecting housing, and both the front housing and the wiring tail housing are fixedly connected to the connecting housing.

[0011] By adopting the above technical solution, the housing adopts a combination structure of front housing, connecting housing and wiring tail housing, which facilitates the installation and wiring of connectors, and also improves the overall strength and stability of the housing.

[0012] Optionally, positioning slots are provided on both sides of the front shell, and positioning blocks are fixedly installed in the positioning slots. A locking screw is also provided above the positioning slot, and the locking screw is threadedly connected to the front shell. An auxiliary slot is provided on the lower end face of the front shell.

[0013] By adopting the above technical solution, the positioning slot, positioning block, locking screw and auxiliary slot on the front shell enable the second connector to be accurately aligned and firmly locked when connected to the socket. Furthermore, by locking the second connector, the first connector is pressed down, thus ensuring that the first and second connectors are stably fixed on the socket for use, thereby improving the connection stability and reliability of the connector.

[0014] Optionally, the grounding isolation ring includes a top shell, a middle web, and a bottom shell. The high-frequency connector is fixedly installed in the top shell, and the low-frequency connector is fixedly installed in the bottom shell. The top shell and the bottom shell are arranged parallel to each other at both ends of the middle web, and the top shell, the middle web, and the bottom shell form an I-shaped structure. The top shell, the middle web, and the bottom shell are integrally formed.

[0015] The above technical solution designs the grounding isolation ring as a structure consisting of a top shell, a middle web, and a bottom shell that fit together. In use, high-frequency and low-frequency connectors are installed on the top and bottom shells respectively, and the middle web separates them. Furthermore, the I-shaped structure of the grounding isolation ring, with its vertical web forming a natural electromagnetic barrier, effectively blocks electromagnetic interference between high and low frequency signals. Simultaneously, the integrally molded structure ensures the overall strength and stability of the grounding isolation ring.

[0016] Optionally, an outer ear plate connected to the front shell is integrally formed on the outer side surface of the top shell and the bottom shell, and a ferrite magnetic ring is embedded in the middle web plate and fixedly connected to the middle web plate.

[0017] By adopting the above technical solution, the outer ear plates of the top and bottom shells facilitate the connection between the grounding isolation ring and the base shell, while the ferrite magnetic ring embedded in the middle web plate can absorb interference in specific frequency bands, further improving the anti-interference capability of the grounding isolation ring.

[0018] Optionally, the high-frequency connector has several sets of circular slots along the circumferential direction, and a conductive spring is fixedly installed in the circular slots. The low-frequency connector has several sets of square slots evenly distributed, and an arc-shaped conductive spring is fixedly installed in the square slots.

[0019] By adopting the above technical solution, the conductive spring in the round hole slot of the high-frequency connector and the arc-shaped conductive spring in the square slot of the low-frequency connector can make good contact with the contact head at the plug end and the metal plug at the plug plate end, respectively, ensuring the stable transmission of high and low frequency signals.

[0020] Optionally, the housing is injection molded from glass fiber reinforced PPS material, and a metal woven mesh is provided on the inner side of the housing. The inner side of the metal woven mesh is provided with a nano-roughened surface, which is formed by nano-shot peening of stainless steel. The grounding isolation ring is made of nickel-titanium shape memory alloy, and the surface of the grounding isolation ring is coated with a silver-graphite composite coating connected to the metal woven mesh.

[0021] By adopting the above technical solution, the housing is injection molded from glass fiber reinforced PPS material, possessing excellent mechanical and insulation properties. The metal braided mesh and nano-roughened surface disrupt the electromagnetic wave reflection phase, forming a broadband absorber in conjunction with the magnetic ring within the grounding isolation ring, effectively reducing external interference. The grounding isolation ring is made of nickel-titanium shape memory alloy, and its surface silver-graphite composite coating significantly reduces contact resistance. Simultaneously, the nickel-titanium alloy substrate automatically adjusts contact pressure to compensate for thermal expansion and contraction.

[0022] Optionally, the insertion rod end includes a column portion and a contact head connected to a conductive spring. The contact head is configured as a spherical structure and is fixedly installed at one end of the column portion.

[0023] By adopting the above technical solution, the spherical contact head at the plug end is connected to the conductive spring. During signal transmission, the high-frequency current is mainly conducted through the multi-point distributed path formed by the spherical contact head and the isolation ring, which improves the efficiency and stability of high-frequency signal transmission.

[0024] Optionally, the lower cover plate assembly includes a semi-circular plate, an outer handle, and an elastic retaining plate corresponding to the positioning block. The outer handle is fixedly installed on the outer side of the semi-circular plate, and the elastic retaining plate is fixedly installed on both sides of the semi-circular plate. A reinforcing plate corresponding to the auxiliary slot is also provided at the lower end of the inner side of the semi-circular plate, and an auxiliary pressure rod for pressing the upper cover plate assembly is integrally formed on the upper end surface of the outer handle.

[0025] By adopting the above technical solution, the elastic retaining plate, reinforcing plate and auxiliary pressure rod of the lower cover plate group make the connection between the second connector plug and the socket more secure. At the same time, the auxiliary pressure rod can also press down the upper cover plate group, further improving the connection stability of the entire connector.

[0026] Optionally, the insert end includes an insulating plate base and a metal insert corresponding to the square slot. The metal insert is evenly installed on the inner side of the insulating plate base and is fixedly connected to the insulating plate base.

[0027] By adopting the above technical solution, the metal inserts at the plug end correspond to the square slots, and the low-frequency current is conducted through the large-area contact between the metal inserts and the isolation ring slots, ensuring the stable transmission of low-frequency signals.

[0028] In summary, this application includes at least one of the following beneficial technical effects: By using the I-shaped structure of the grounding isolation ring and the ferrite magnetic ring, this application forms a natural electromagnetic barrier and a specific frequency band interference absorption device, effectively isolating interference between high and low frequency signals. Simultaneously, the system's unique dual-path design ensures that the high-frequency return path impedance is more than 20% lower than the low-frequency path, achieving spectrum separation and improving signal transmission quality. The silver-graphite coating on the isolation ring surface generates a tunneling effect, forming quantum dot contacts at the microscopic level, significantly reducing contact resistance and improving signal transmission efficiency. Furthermore, the nickel-titanium alloy substrate automatically adjusts the contact pressure when the temperature changes, compensating for thermal expansion and contraction, ensuring the stability and reliability of the connector under different ambient temperatures. The rough surface structure of the shielding layer inside the shell disrupts the electromagnetic wave reflection phase, and together with the magnetic ring inside the isolation ring, forms a broadband absorber, effectively absorbing and reducing external interference. When the connector is mated, the high-frequency terminal group can provide pre-clamping force through a conductive spring, ensuring stable transmission of high-frequency signals. Attached Figure Description

[0029] Figure 1 This is a perspective view of the overall structure in the embodiments of this application.

[0030] Figure 2 yes Figure 1 Side view of the device shown.

[0031] Figure 3 This is a perspective view of the socket in the embodiment of this application.

[0032] Figure 4 yes Figure 3 Front view of the device shown.

[0033] Figure 5 yes Figure 1 A schematic diagram of the exploded structure of the device shown.

[0034] Figure 6 yes Figure 5 Front view of the device shown.

[0035] Figure 7 This is a perspective view of the first connector in an embodiment of this application.

[0036] Figure 8 yes Figure 7 Top view of the device shown.

[0037] Figure 9 This is a perspective view of the second connector in an embodiment of this application.

[0038] Figure 10 yes Figure 9 Rear view of the device shown.

[0039] Explanation of reference numerals in the attached drawings: 1. Socket; 11. Base housing; 111. Front housing; 112. Connecting housing; 113. Wiring tail housing; 114. Positioning slot; 115. Positioning block; 116. Locking screw; 117. Auxiliary slot; 12. Grounding isolation ring; 121. Top housing; 122. Middle web plate; 123. Bottom housing; 124. Outer ear plate; 125. Ferrite magnetic ring; 13. High-frequency connector; 131. Round hole Slot; 14. Low-frequency connector; 141. Square slot; 2. First connector plug; 21. Upper cover plate assembly; 22. Insert rod end; 221. Post rod part; 222. Contact head; 3. Second connector plug; 31. Lower cover plate assembly; 311. Semicircular plate; 312. Outer handle; 313. Elastic retaining plate; 314. Reinforcing plate; 315. Auxiliary pressure rod; 32. Insert plate end; 321. Insulating plate base; 322. Metal insert. Detailed Implementation

[0040] The present application will be further described in detail below with reference to the accompanying drawings.

[0041] This application discloses a grounding isolation ring for a high- and low-frequency mixed-assembly connector. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The high- and low-frequency mixed connector grounding isolation ring 12 includes a socket 1 and a first connecting plug 2 and a second connecting plug 3 that cooperate with it. The socket 1 includes a housing 11, a grounding isolation ring 12, a high-frequency connecting seat 13 and a low-frequency connecting seat 14. The grounding isolation ring 12 is installed at the head of the housing 11 and is fixedly connected to the housing 11. The high-frequency connecting seat 13 and the low-frequency connecting seat 14 are respectively installed at the upper and lower ends of the grounding isolation ring 12 and are fixedly connected to the grounding isolation ring 12. The first connecting plug 2 includes an upper cover plate assembly 21 and a plug end 22 corresponding to the high-frequency connecting seat 13. The plug end 22 is evenly installed on the inner side of the upper cover plate assembly 21 along the circumferential direction and is fixedly connected to the upper cover plate assembly 21. The second connecting plug 3 includes a lower cover plate assembly 31 and a plug plate end 32 corresponding to the low-frequency connecting seat 14. The plug plate end 32 is fixedly installed on the inner side of the lower cover plate assembly 31. The socket 1, in conjunction with the first connector 2 and the second connector 3, enables composite connections suitable for both high-frequency and low-frequency circuits. The socket 1 is designed with a housing 11, a grounding isolation ring 12, a high-frequency connector 13, and a low-frequency connector 14 working together. The housing 11 serves as an external protective shell, while the grounding isolation ring 12 allows for the separate installation of the high-frequency and low-frequency connectors 13 and 14. By mounting the high-frequency and low-frequency connectors 13 and 14 at their respective ends of the grounding isolation ring 12 and using corresponding connectors, separate transmission of high and low frequency signals is achieved. Furthermore, the isolation ring's structural design creates a natural electromagnetic barrier, and the embedded materials within it absorb interference in specific frequency bands, effectively reducing mutual interference. This avoids mutual interference between high and low frequency signals, improving the stability and reliability of signal transmission. By designing the first connector 2 with a structure in which the upper cover assembly 21 and the plug end 22 cooperate, it is ensured that a high-frequency signal line can be connected through the first connector 2 during installation. When the plug end 22 is inserted into the high-frequency connector 13, the purpose of stable high-frequency signal transmission can be achieved, and the upper cover assembly 21 can shield and protect the upper end of the connection. Similarly, the second connector 3 is designed with a structure in which the lower cover assembly 31 and the plug end 32 cooperate, which facilitates the connection of a low-frequency signal line through the second connector 3 during use. When the plug end 32 is inserted into the low-frequency connector 14, the purpose of stable low-frequency signal transmission can be achieved, and the lower cover assembly 31 can shield and protect the lower end of the connection.

[0042] Reference Figure 2 , Figure 3 , Figure 4 and Figure 6The housing 11 includes a front housing 111, a connecting housing 112, and a wiring tail housing 113. The front housing 111 and the wiring tail housing 113 are located at the front and rear ends of the connecting housing 112, and are both fixedly connected to the connecting housing 112. The housing 11 adopts a combined structure of the front housing 111, the connecting housing 112, and the wiring tail housing 113, which facilitates the installation and wiring of the connector, and also improves the overall strength and stability of the housing 11. Positioning slots 114 are provided on both sides of the front housing 111, and positioning blocks 115 are fixedly installed in the positioning slots 114. A locking screw 116 is also provided above the positioning slots 114, and the locking screw 116 is threadedly connected to the front housing 111. An auxiliary slot 117 is provided on the lower end face of the front housing 111. The positioning slot 114, positioning block 115, locking screw 116, and auxiliary slot 117 on the front housing 111 ensure accurate alignment and secure locking of the second connector 3 when connected to the socket 1. Locking the second connector 3 also presses down on the first connector 2, guaranteeing stable fixation of both connectors on the socket 1 and improving the connector's connection stability and reliability. The housing 11 is injection molded from glass fiber reinforced PPS material, and its inner surface features a metal braided mesh with a nano-roughened surface formed from stainless steel through nano-shot peening. The grounding isolation ring 12 is made of nickel-titanium shape memory alloy, and its surface is coated with a silver-graphite composite plating layer connected to the metal braided mesh. The housing 11, injection molded from glass fiber reinforced PPS material, possesses excellent mechanical and insulating properties. The metal braided mesh and nano-roughened surface disrupt the electromagnetic wave reflection phase, forming a broadband absorber with the magnetic ring inside the grounding isolation ring 12, effectively reducing external interference. The grounding isolation ring 12 is made of nickel-titanium shape memory alloy, and its silver-graphite composite coating significantly reduces contact resistance. At the same time, the nickel-titanium alloy substrate can automatically adjust the contact pressure to compensate for thermal expansion and contraction.

[0043] Reference Figure 4 , Figure 5 and Figure 6The grounding isolation ring 12 includes a top shell 121, a middle web 122, and a bottom shell 123. A high-frequency connector 13 is fixedly installed in the top shell 121, and a low-frequency connector 14 is fixedly installed in the bottom shell 123. The top shell 121 and bottom shell 123 are arranged parallel to each other at both ends of the middle web 122, forming an I-shaped structure. The top shell 121, middle web 122, and bottom shell 123 are integrally formed. By designing the grounding isolation ring 12 with a cooperating structure of the top shell 121, middle web 122, and bottom shell 123, the high-frequency connector 13 and low-frequency connector 14 are installed separately through the top shell 121 and bottom shell 123 during use. The middle web 122 then separates the high-frequency connector 13 and low-frequency connector 14 from each other. Furthermore, the I-shaped grounding isolation ring 12 utilizes its vertical web to form a natural electromagnetic barrier, effectively blocking electromagnetic interference between high and low frequency signals. Simultaneously, the integrally molded structure ensures the overall strength and stability of the grounding isolation ring 12. External ear plates 124, connected to the front shell 111, are integrally formed on the outer surfaces of the top shell 121 and bottom shell 123. A ferrite magnetic ring 125 is embedded in the middle web 122 and fixedly connected to it. The external ear plates 124 of the top shell 121 and bottom shell 123 facilitate the connection between the grounding isolation ring 12 and the base shell 11, while the ferrite magnetic ring 125 embedded in the middle web 122 absorbs interference in specific frequency bands, further improving the anti-interference capability of the grounding isolation ring 12. Its core principle is based on the hysteresis loss, eddy current loss, and residual loss of ferrite materials, converting the energy of electromagnetic interference into heat dissipation, thereby suppressing the propagation of interference signals. The high-frequency connector 13 has several sets of circular slots 131 along its circumference, and conductive springs are fixedly installed in the circular slots 131. The low-frequency connector 14 has several sets of square slots 141 evenly distributed, and arc-shaped conductive springs are fixedly installed in the square slots 141. The conductive springs in the circular slots 131 of the high-frequency connector 13 and the arc-shaped conductive springs in the square slots 141 of the low-frequency connector 14 can make good contact with the contact head 222 of the plug end 22 and the metal plug 322 of the plug plate end 32, respectively, ensuring stable transmission of high and low frequency signals.

[0044] Reference Figure 7 and Figure 8 The insertion end 22 includes a post portion 221 and a contact head 222 connected to a conductive spring. The contact head 222 is located at one end of the post portion 221 and is configured as a spherical structure. The spherical contact head 222 of the insertion end 22 is connected to the conductive spring. During signal transmission, the high-frequency current is mainly conducted through the multi-point distributed path formed by the spherical contact head 222 and the isolation ring, which improves the efficiency and stability of high-frequency signal transmission.

[0045] Reference Figure 9 and Figure 10 The lower cover plate assembly 31 includes a semi-circular plate 311, an outer handle 312, and an elastic retaining plate 313 corresponding to the positioning retaining block 115. The outer handle 312 is fixedly installed on the outer side of the semi-circular plate 311, and the elastic retaining plate 313 is fixedly installed on both sides of the semi-circular plate 311. A reinforcing plate 314 corresponding to the auxiliary slot 117 is also provided at the lower end of the inner side of the semi-circular plate 311. An auxiliary pressure rod 315 for pressing the upper cover plate assembly 21 is integrally formed on the upper end surface of the outer handle 312. The elastic retaining plate 313, the reinforcing plate 314, and the auxiliary pressure rod 315 of the lower cover plate assembly 31 make the connection between the second connector plug 3 and the socket 1 more secure. At the same time, the auxiliary pressure rod 315 can also press down the upper cover plate assembly 21, further improving the connection stability of the entire connector. The insertion plate end 32 includes an insulating plate base 321 and metal inserts 322 corresponding to the square slot 141. The metal inserts 322 are evenly installed on the inner side of the insulating plate base 321 and are fixedly connected to the insulating plate base 321. The metal inserts 322 of the insertion plate end 32 correspond to the square slot 141. Low-frequency current is conducted through the large-area surface contact between the metal inserts 322 and the isolation ring slot, ensuring stable transmission of low-frequency signals.

[0046] The implementation principle of the grounding isolation ring of the high- and low-frequency mixed connector in this application embodiment is as follows: When the connector is inserted, the first connector plug 2 and the second connector plug 3 are installed in sequence. When the first connector plug 2 is inserted, the plug end 22 is aligned with the round hole slot 131 on the high-frequency connector 13 and inserted, so that the contact head 222 on the post part 221 contacts the conductive spring in the round hole slot 131, and then the conductive spring is pressed to ensure that the high-frequency signal can be transmitted stably. In order to ensure that the upper cover plate group 21 and the lower cover plate group 31 are installed more stably on the front shell 111, the inner side of the upper cover plate group 21 and the lower cover plate group 31 are integrally formed with an arc plate that is inserted into the front shell 111, so that the arc plate can fit against the inner side of the front shell 111 during installation. After the first connector 2 is installed, the second connector 3 can be installed. Insert the metal tab 322 on the inner side of the second connector 3 into the square slot 141 of the low-frequency connector 14. The metal tab 322 contacts and conducts through the metal tab 322 in the square slot 141, so that when fully inserted, the elastic plates 313 on both sides of the lower cover plate assembly 31 can engage and fix on the positioning block 115 of the positioning slot 114 to achieve quick locking. The stability of the connection is further increased by the cooperation of the reinforcing plate 314 and the auxiliary slot 117. After the second connector 3 is installed, the auxiliary pressure rod 315 stably presses and fixes the first connector 2 at the upper end to ensure the safety of the overall use.

[0047] During signal transmission, high-frequency current is primarily conducted through a multi-point distributed path formed by the spherical contact head 222 of the plug end 22 and the grounding isolation ring 12. The vertical web of the I-shaped structure of the grounding isolation ring 12 forms a natural electromagnetic barrier, and the ferrite magnetic ring 125 embedded inside absorbs interference in specific frequency bands. Low-frequency current is conducted through the large-area surface contact between the metal insert 322 of the plug end 32 and the slot of the grounding isolation ring 12. The system's unique dual-path design makes the impedance of the high-frequency return path more than 20% lower than that of the low-frequency path, achieving spectrum separation. The silver-graphite coating on the surface of the grounding isolation ring 12 generates a tunneling effect, forming quantum dot contacts at the microscopic level, significantly reducing contact resistance. The nickel-titanium alloy substrate automatically adjusts the contact pressure to compensate for thermal expansion and contraction when the temperature changes.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-low frequency mixed-assembly connector grounding isolation ring, comprising a socket (1) and a first connecting plug (2) and a second connecting plug (3) matched with each other, characterized in that: The socket (1) comprises a seat shell (11), a grounding isolation ring (12), a high-frequency connecting seat (13) and a low-frequency connecting seat (14), the grounding isolation ring (12) is installed at the head of the seat shell (11), and the grounding isolation ring (12) is fixedly connected with the seat shell (11), the high-frequency connecting seat (13) and the low-frequency connecting seat (14) are respectively installed at the upper and lower ends in the grounding isolation ring (12), and the high-frequency connecting seat (13) and the low-frequency connecting seat (14) are fixedly connected with the grounding isolation ring (12), the first connecting plug (2) comprises an upper cover plate group (21) and a plug rod end (22) corresponding to the high-frequency connecting seat (13), the plug rod end (22) is uniformly installed on the inner side of the upper cover plate group (21) in the circumferential direction, and the plug rod end (22) is fixedly connected with the upper cover plate group (21), and the second connecting plug (3) comprises a lower cover plate group (31) and a plug plate end (32) corresponding to the low-frequency connecting seat (14), the plug plate end (32) is fixedly installed on the inner side of the lower cover plate group (31); The grounding isolation ring (12) comprises a top shell part (121), a middle web (122) and a bottom shell part (123), the high-frequency connecting seat (13) is fixedly installed in the top shell part (121), the low-frequency connecting seat (14) is fixedly installed in the bottom shell part (123), the top shell part (121) and the bottom shell part (123) are arranged in parallel at the two ends of the middle web (122), and the top shell part (121), the middle web (122) and the bottom shell part (123) form a H-shaped structure, and the top shell part (121), the middle web (122) and the bottom shell part (123) are integrally formed; An outer lug (124) connected with the seat shell (11) is integrally formed on the outer side of the top shell part (121) and the bottom shell part (123), and a ferrite magnetic ring (125) is embedded and installed in the middle web (122), and the ferrite magnetic ring (125) is fixedly connected with the middle web (122); The seat shell (11) is made of glass fiber reinforced PPS material and is injection molded, a metal woven mesh is arranged on the inner side of the seat shell (11), a nano rough surface is arranged on the inner side of the metal woven mesh, the nano rough surface is formed by nano shot blasting treatment of stainless steel, the grounding isolation ring (12) is made of nickel-titanium shape memory alloy, and the surface of the grounding isolation ring (12) is coated with a silver-graphite composite plating layer connected with the metal woven mesh.

2. The high-low frequency mixed-connector grounding isolation ring of claim 1, wherein: The seat shell (11) comprises a front shell part (111), a connecting shell (112) and a wiring tail shell (113), the front shell part (111) and the wiring tail shell (113) are arranged at the front and rear ends of the connecting shell (112), and the front shell part (111) and the wiring tail shell (113) are fixedly connected with the connecting shell (112).

3. The high-low frequency mixed-connector grounding isolation ring of claim 2, wherein: Positioning slots (114) are formed at the two sides of the front shell part (111), positioning clamping blocks (115) are fixedly installed in the positioning slots (114), locking screws (116) are further arranged above the positioning slots (114), the locking screws (116) are threadedly connected with the front shell part (111), and auxiliary slots (117) are formed in the lower end surface of the front shell part (111).

4. The high-low frequency mixed-connector grounding isolation ring of claim 1, wherein: The high-frequency connecting seat (13) is provided with a plurality of groups of circular hole slots (131) in the circumferential direction, the circular hole slots (131) are fixedly provided with conductive springs, the low-frequency connecting seat (14) is uniformly provided with a plurality of groups of square slots (141), and the square slots (141) are fixedly provided with arc-shaped conductive spring sheets.

5. The high-low frequency mixed-connector grounding isolation ring of claim 3, wherein: The plug rod end (22) comprises a column rod part (221) and a contact head (222) connected with the conductive spring, the contact head (222) is provided in a spherical structure, and the contact head (222) is fixedly installed at one end of the column rod part (221).

6. The high-low frequency mixed-connector grounding isolation ring of claim 5, wherein: The lower cover plate group (31) comprises a semicircular plate (311), an outer handle (312) and an elastic clamping plate (313) corresponding to the positioning clamping block (115), the outer handle (312) is fixedly installed on the outer side of the semicircular plate (311), the elastic clamping plate (313) is fixedly installed on the two sides of the semicircular plate (311), the lower end of the inner side of the semicircular plate (311) is further provided with a reinforcing plate (314) corresponding to the auxiliary slot (117), and the upper end surface of the outer handle (312) is further integrally provided with an auxiliary pressing rod (315) for pressing the upper cover plate group (21).

7. The high-low frequency mixed-connector grounding isolation ring of claim 4, wherein: The plug plate end (32) comprises an insulating plate seat (321) and a metal plug sheet (322) corresponding to the square slot (141), the metal plug sheet (322) is uniformly installed on the inner side of the insulating plate seat (321), and the metal plug sheet (322) is fixedly connected with the insulating plate seat (321).

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