A method for improving connector SI performance

Abstract

This invention discloses a method for improving the SI (Integrated Signal Performance) of a connector. Under normal conditions, the first inclined surface on the upper terminal and the second inclined surface on the lower terminal are in close contact under the action of a linkage mechanism, forming a complete signal terminal structure. A separation interface is formed at the contact point between the first and second inclined surfaces. During insertion, the first signal terminal in the female terminal directly contacts the upper terminal. When the first signal terminal just passes the separation interface, the female terminal contacts the linkage mechanism and drives it to rotate. The linkage mechanism directly drives the plastic component to rotate, causing the upper and lower terminals to separate. After insertion, the upper and lower terminals are in a separated state, thereby reducing the overall length of the signal terminal. In this invention, when the male and female terminals mate, the overall length of the signal terminal is reduced while ensuring compliance with standard wiping lengths, thus reducing signal terminal redundancy and effectively improving the SI performance of the connector.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more specifically to a method for improving connector SI performance. Background Technology

[0002] The U2 connector is a new physical electrical interface designed for high-performance storage media (currently mainly SSDs in drive form). While retaining the pin definitions of the SFF-8482 interface (the physical electrical interface of SAS hard drives) (backward compatible with SATA / SAS hard drives), it adds new pin definitions. A single U2 interface can use up to 4 PCIe lanes, providing the foundation for high-performance data transfer between SSDs in drive form and the host.

[0003] In practical applications, a single product needs to meet multiple high-frequency performance requirements simultaneously. As data storage volume continues to grow, transmission rate requirements also increase; and with the expanding applications of these products, while existing U2 connectors can achieve transmission rates of 32Gbps, SI performance requirements are also rising.

[0004] Because the male and female terminals of the connector have a certain wiping length requirement when they are mated, the length of the signal terminal needs to be determined based on the wiping length. This results in too much redundancy on the signal terminal, which reduces the SI performance of the connector. Summary of the Invention

[0005] The purpose of this invention is to provide a method for improving the SI performance of connectors, which can effectively improve the SI performance of connectors.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A method for improving connector SI performance includes using a connector with the following structure to improve connector SI performance;

[0008] The connector includes a male terminal and a female terminal. The male terminal has a housing and a signal terminal inserted into the housing. The housing includes a housing body and an extension connected to the housing body, and the extension has a mounting groove. The signal terminal includes an upper terminal and a lower terminal. After the lower terminal is fixedly installed on the housing body, one end is used to connect to the PCB board, and the other end extends into the mounting groove. The upper terminal is fixedly installed on a plastic part, and the plastic part is rotatably installed in the mounting groove. The upper terminal has a first inclined surface, and the lower terminal has a second inclined surface. The housing body has a linkage mechanism, which is connected to the plastic part.

[0009] Under normal conditions, the first inclined surface on the upper terminal and the second inclined surface on the lower terminal are in close contact under the action of the linkage mechanism, forming a complete signal terminal structure, and a separation interface is formed at the contact position of the first inclined surface and the second inclined surface.

[0010] During insertion, the first signal terminal in the female end directly contacts the upper terminal. When the first signal terminal just wipes the separation interface, the female end will contact the linkage mechanism and drive the linkage mechanism to move. The linkage mechanism directly drives the plastic part to rotate, so that the upper terminal and the lower terminal are separated.

[0011] After insertion, the upper terminal and the lower terminal are separated; by reducing the overall length of the signal terminal, the redundant part of the signal terminal is reduced.

[0012] The extension has a mounting hole that communicates with the mounting groove. The plastic part has a rotating shaft on both sides. The plastic part is installed in the mounting groove by rotating the shaft. The rotating shaft on both sides of the plastic part is connected to a linkage mechanism. Under the action of the linkage mechanism on both sides, the first inclined surface is forced to make close contact with the second inclined surface, and the plastic part is rotated stably under the action of the rotating shaft.

[0013] Further optimized, the linkage mechanism includes a first tension spring, a second tension spring, a pull rope, and a wrench. A first limit post and a second limit post are provided on the rotating shaft. The first limit post is horizontally set, and the second limit post is vertically set. One end of the first tension spring is connected to the extension, and the other end is connected to the first limit post. A pin is provided in the mounting groove, and a clearance groove is provided on the extension. The clearance groove is connected to the mounting groove. One end of the wrench is rotatably connected to the pin, and the other end passes through the clearance groove. The second tension spring is connected to the pull rope. The upper end of the pull rope is connected to the second limit post, and the lower end of the second tension spring is connected to the wrench. Under the action of the first tension spring and the second tension spring, the first inclined surface and the second inclined surface are in close contact.

[0014] The first tension spring, the second tension spring, and the pull rope are designed to keep the plastic parts in a state of dynamic equilibrium.

[0015] Under normal conditions, the first and second tension springs ensure that the first and second inclined surfaces are in close contact, thus guaranteeing a tight connection between the upper and lower terminals and forming a complete signal terminal structure.

[0016] During insertion, the first signal terminal in the female end wipes against the upper terminal. When the first signal terminal just wipes past the separation interface and makes contact with the lower terminal, the female end just makes contact with the wrench.

[0017] During the continuous mating process, the wrench rotates around the pin, pulling the second tension spring and the pull rope. The plastic part rotates after overcoming the tension of the first tension spring, thus separating the first and second inclined surfaces.

[0018] The mounting groove contains a first pin, and the lower end of the first tension spring is connected to the first pin.

[0019] Further optimization involves providing a limiting part or notch in the middle of the wrench, with the lower end of the second tension spring contacting the limiting part or notch to prevent the second tension spring from slipping.

[0020] Furthermore, a groove is provided on the first inclined surface of the upper terminal, and a protrusion is provided on the second inclined surface of the lower terminal. The bottom of the groove and the end of the protrusion are both inclined surfaces. Under the action of the protrusion and the groove, the upper terminal and the lower terminal are prevented from sliding and shifting, thereby improving the tightness of the connection between the upper terminal and the lower terminal.

[0021] The extension is provided with a first clearance groove that communicates with the mounting groove, and the first limiting post is located in the first clearance groove, thereby making the first limiting post clearance and making the overall structure more compact.

[0022] The male end has guide insertion parts at both ends of the housing body, and insertion grooves are provided on the insertion parts. The female end has insertion ends corresponding to the insertion grooves. The insertion grooves and insertion ends make the male end and female end more stable when inserted.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In practical use, this invention uses a male and female connector to drive a linkage mechanism. Under normal conditions, the first bevel on the upper terminal of the male connector is in close contact with the second bevel on the lower terminal under the action of the linkage mechanism, forming a complete signal terminal structure. A separation interface is formed at the contact point between the first and second bevels. During insertion, the first signal terminal in the female connector directly contacts the upper terminal. When the first signal terminal just brushes past the separation interface, the female connector contacts the linkage mechanism and drives it to rotate. The linkage mechanism directly drives the plastic component to rotate, separating the upper and lower terminals. After insertion, the upper and lower terminals are in a separated state. By reducing the overall length of the signal terminals, redundant parts that do not contribute positively to signal transmission are reduced. This ensures that when the male and female terminals are mated, the overall length of the signal terminals is reduced while maintaining standard brushing lengths, thereby reducing signal terminal redundancy and effectively improving the SI performance of the connector. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the connector described in this invention.

[0027] Figure 2 This is a schematic diagram of the overall structure of the public terminal of the present invention.

[0028] Figure 3 For the present invention Figure 2 A magnified view of a portion of point A in the middle.

[0029] Figure 4 This is a schematic diagram showing the connection relationship between the signal terminal and the plastic part of the present invention.

[0030] Figure 5 This is a schematic diagram showing the connection relationship between the linkage mechanism and the plastic part of the present invention.

[0031] Figure 6 This is a schematic diagram of the overall structure of the signal terminal of the present invention.

[0032] Figure 7 This is an impedance diagram of a connector in the prior art.

[0033] Figure 8 This is the impedance diagram of the connector in this invention.

[0034] Figure 9 This is a diagram showing the insertion loss of connectors in the prior art.

[0035] Figure 10 This is a diagram showing the insertion loss of the connector in this invention.

[0036] Figure 11 This is a return loss diagram for connectors in the prior art.

[0037] Figure 12 This is a return loss diagram of the connector in this invention.

[0038] Figure label:

[0039] 101-Housing shell, 102-PCB board, 103-Female end, 104-First signal terminal, 105-Signal terminal, 106-Housing shell body, 107-Extension, 108-Mounting groove, 109-Upper terminal, 110-Lower terminal, 111-Plastic part, 112-First inclined surface, 113-Second inclined surface, 114-Linkage mechanism, 115-Mounting hole, 116-Rotating shaft, 117-First tension spring, 118-Second tension spring, 119-Pull rope, 120-Wrench, 121-First limiting post, 122-Second limiting post, 123-Pin, 124-Relief groove, 125-Groove, 126-Protrusion, 127-First relief groove, 128-Guide insertion part, 129-Insertion groove, 130-Insertion end, 131-Male end. Detailed Implementation

[0040] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the embodiments of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0041] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0044] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0046] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0047] Example 1

[0048] See Figures 1-12 This embodiment discloses a method for improving connector SI performance, which includes using a connector with the following structure to improve connector SI performance;

[0049] The connector includes a male terminal 131 and a female terminal 103. The male terminal 131 includes a housing 101 and a signal terminal 105 inserted into the housing 101. The housing 101 includes a housing body 106 and an extension 107 connected to the housing body 106. The extension 107 is provided with a mounting groove 108. The signal terminal 105 includes an upper terminal 109 and a lower terminal 110. The lower terminal 110 is fixedly installed on the housing body 106, with one end used to connect to the PCB board 102 and the other end extending into the mounting groove 108. The upper terminal 109 is fixedly installed on a plastic part 111, and the plastic part 111 is rotatably installed in the mounting groove 108. The upper terminal 109 is provided with a first inclined surface 112, and the lower terminal 110 is provided with a second inclined surface 113. The housing body 106 is provided with a linkage mechanism 114, which is connected to the plastic part 111.

[0050] Under normal conditions, the first inclined surface 112 on the upper terminal 109 and the second inclined surface 113 on the lower terminal 110 are in close contact under the action of the linkage mechanism 114, forming a complete signal terminal structure, and a separation interface is formed at the contact position of the first inclined surface 112 and the second inclined surface 113.

[0051] During insertion, the first signal terminal 104 in the female end 103 directly contacts the upper terminal 109. When the first signal terminal 104 just wipes the separation interface, the female end 103 will contact the linkage mechanism 114 and drive the linkage mechanism 114 to move. The linkage mechanism 114 directly drives the plastic part 111 to rotate, so that the upper terminal 109 and the lower terminal 110 are separated.

[0052] After insertion, the upper terminal 109 and the lower terminal 110 are separated; by reducing the overall length of the signal terminal 105, the redundant part of the signal terminal 105 is reduced.

[0053] Under the action of the linkage mechanism 114, the plastic part 111 with the upper terminal 109 can rotate, thereby realizing the separation of the upper terminal 109 and the lower terminal 110. While ensuring the wiping length is met, the redundant part of the signal terminal 105 that has no positive effect on signal transmission is reduced. This effectively solves the technical problem in the prior art where the length of the signal terminal 105 needs to be designed according to the wiping length under the premise that the wiping length is required when the connector is mated, which reduces the SI performance of the connector. The present invention can effectively improve the SI performance of the connector.

[0054] In actual use, the housing body 106 is mounted on the PCB board 102.

[0055] Among them, the male end 131 has guide insertion parts 128 at both ends of the plastic shell body 106, and insertion grooves 129 are provided on the insertion parts. The female end 103 is provided with insertion ends 130 corresponding to the insertion grooves 129. Through the provided insertion grooves 129 and insertion ends 130, the male end 131 and the female end 103 are more stable when inserted.

[0056] Further optimization involves providing a mounting hole 115 on the extension 107 that communicates with the mounting groove 108. A rotating shaft 116 is provided on both sides of the plastic part 111. The plastic part 111 is rotatably mounted in the mounting groove 108 via the rotating shaft 116. A linkage mechanism 114 is connected to the rotating shaft 116 on both sides of the plastic part 111. Under the action of the linkage mechanism 114 on both sides, the first inclined surface 112 is forced to make close contact with the second inclined surface 113, and under the action of the rotating shaft 116, the plastic part 111 rotates stably.

[0057] The linkage mechanism 114 includes a first tension spring 117, a second tension spring 118, a pull rope 119, and a wrench 120. A first limiting post 121 and a second limiting post 122 are provided on the rotating shaft 116. The first limiting post 121 is horizontally positioned, and the second limiting post 122 is vertically positioned. One end of the first tension spring 117 is connected to the extension 107, and the other end is connected to the first limiting post 121. A pin 123 is provided in the mounting groove 108, and a [missing information - likely a device or mechanism] is provided on the extension 107. A clearance groove 124 is provided, which is connected to the mounting groove 108. One end of the wrench 120 is rotatably connected to the pin 123, and the other end passes through the clearance groove 124. The second tension spring 118 is connected to the pull rope 119. The upper end of the pull rope 119 is connected to the second limiting post 122, and the lower end of the second tension spring 118 is connected to the wrench 120. Under the action of the first tension spring 117 and the second tension spring 118, the first inclined surface 112 and the second inclined surface 113 are in close contact.

[0058] The first tension spring 117, the second tension spring 118, and the pull rope 119 are configured to keep the plastic part 111 in a dynamic equilibrium state.

[0059] Under normal conditions, the first tension spring 117 and the second tension spring 118 make the first inclined surface 112 and the second inclined surface 113 in close contact to ensure that the upper terminal 109 and the lower terminal 110 are tightly connected to form a complete signal terminal 105 structure.

[0060] During insertion, the first signal terminal 104 in the female end 103 wipes the upper terminal 109. When the first signal terminal 104 just wipes the separation interface and contacts the lower terminal 110, the female end 103 just contacts the wrench 120.

[0061] During the continuous mating process, the wrench 120 rotates around the pin 123, and the wrench 120 pulls the second tension spring 118 and the pull rope 119. The plastic part 111 rotates after overcoming the tension of the first tension spring 117, thereby realizing the separation of the first inclined surface 112 and the second inclined surface 113.

[0062] In this embodiment, the first tension spring 117, the second tension spring 118, and the pull rope 119 enable the plastic part 111 to maintain a dynamic balance. Under normal conditions, the first tension spring 117 and the second tension spring 118 ensure that the first inclined surface 112 and the second inclined surface 113 are in close contact, guaranteeing a tight connection between the upper terminal 109 and the lower terminal 110, forming a complete signal terminal 105 structure. The first inclined surface 112 and the second inclined surface 113 serve as limiting elements. When the male terminal 131 is inserted into the female terminal 103, the first signal terminal 104 in the female terminal 103 wipes against the upper terminal 109. After terminal 104 has just wiped the separation interface and made contact with the lower terminal 110, the female end 103 is now in contact with the wrench 120. During the continuous mating process, the wrench 120 will rotate around the pin 123, and the wrench 120 will pull the second tension spring 118 and the pull rope 119. At this time, the plastic part 111 will overcome the tension of the first tension spring 117 and rotate to separate the first inclined surface 112 and the second inclined surface 113. This ensures that the length of the signal terminal 105 is reduced while meeting the wiping length requirement, reducing the redundant parts on the signal terminal 105, thereby reducing signal attenuation and improving SI performance.

[0063] The mounting groove 108 is provided with a first pin, and the lower end of the first tension spring 117 is connected to the first pin.

[0064] In practical applications, signal terminals 105 generally include long signal terminals and short signal terminals. The wiping plane length of the long signal terminal is L1 = 6.85 mm, and the wiping plane length of the short signal terminal is L2 = 6.35 mm.

[0065] The planar length of the lower terminal 110 in both long and short signal terminals is generally L3 = 4.45 mm;

[0066] Right now:

[0067] Redundancy in long signal terminals: A = L1 - L3 = 2.4 mm;

[0068] Redundancy in the short signal terminal: B = L2 - L3 = 1.9 mm;

[0069] In this application, the signal terminals (including long signal terminals and short signal terminals) are configured as a separate structure, which can be separated after mutual wiping.

[0070] It should be noted that the SI performance of the connector in this application specifically includes impedance, insertion loss, and return loss. To facilitate a more intuitive understanding of SI performance by those skilled in the art, the SI performance is further explained below:

[0071] The PCIe signal transmission specification sets a target impedance of 85 ohms for the entire signal transmission system. At this impedance, signal transmission loss is optimal. Therefore, all electronic components in a PCIe signal transmission system strive to achieve an impedance close to 85 ohms. Impedance affects signal transmission loss, primarily manifested as insertion loss and return loss. Insertion loss can be understood as signal loss caused by the involvement of the male and female terminals of the connector; therefore, lower insertion loss is better. Return loss can be understood as discontinuity or impedance mismatch when the signal enters or leaves the male or female connector. This is why component impedances need to be as close to 85 ohms as possible, as this will cause signal reflection or echo. The power loss of the reflected or returned signal is return loss, demonstrating a strong correlation between impedance and return loss.

[0072] To better demonstrate the SI performance of the connector disclosed in this invention, simulations were performed on conventional connectors in the prior art and connectors using the connector disclosed in this application to test the SI performance.

[0073] It should be noted that when conducting comparative simulation tests, existing simulation software and methods can be used, and will not be described in detail in this application. When conducting simulation tests, in order to ensure the accuracy of the simulation results, the signal transmission structure (signal terminal) of the connector in the prior art is different from the signal transmission structure (split-type signal terminal) of the connector described in this application, while other parameters remain the same.

[0074] The specific test results are as follows:

[0075] 1. Impedance simulation comparison

[0076] See Figure 7 and Figure 8 ,according to Figure 7 and Figure 8 It can be seen that for a typical connector, when the X coordinate is 110PS, the impedance is the low point caused by the corresponding stub, which is about 76 ohms. After reducing the redundant part of the signal terminal 105, the impedance corresponding to the X coordinate 110ps is about 86 ohms, which is closer to the target impedance of 85 ohms set by the PCIe signal system, thus reducing the low impedance point caused by the excessive length of the stub.

[0077] Here, "stub" refers to the redundant part on the terminal that does not contribute positively to signal transmission.

[0078] 2. Simulation comparison of insertion loss

[0079] See Figure 9 and Figure 10 The closer the insertion loss (Y-axis) is to 0, the better. Figure 9 and Figure 10In the middle, the shaded line at the bottom represents the standard line for PCIe signal specifications; Figure 10 The slope of the interpolation loss is significantly smaller than that of the interpolation loss. Figure 9 That is, at the same frequency (X-axis), the insertion loss value is closer to 0, and the margin is significantly larger for the specification.

[0080] 3. Comparison of simulated pullback losses

[0081] See Figure 11 and Figure 12 , Figure 11 and Figure 12 The shaded line at the top center is the standard line for PCIe signal specifications. Figure 12 The margin between the return loss and the standard line is significantly larger. Line A and Line B are the same electrical channel, and the return loss can be viewed from different ports (male and female 103). Figure 11 In the example, lines A and B are closer to the standard line. During actual production, fluctuations in the manufacturing process, coupled with a smaller return loss margin, may lead to poor signal transmission and product scrap. Figure 12 In this case, the return loss margin is significantly larger, which can reduce the scrap rate caused by poor signal transmission due to process fluctuations during production, thereby reducing the connector production cost.

[0082] In summary, in practical use, this invention can effectively improve the SI performance of connectors, reduce signal loss during connector signal transmission, improve the signal transmission quality of connectors, reduce the scrap rate of connectors during the production process, reduce connector production costs, and make connector performance more stable.

[0083] Example 2

[0084] This embodiment is a further optimization based on Embodiment 1. In this embodiment, a limiting part or notch is provided in the middle of the wrench 120, and the lower end of the second tension spring 118 contacts the limiting part or notch to prevent the second tension spring 118 from sliding. After the middle of the wrench 120 contacts the second tension spring 118, a lever structure can be formed to ensure that the resistance between the male end 131 and the female end 103 is smaller when they are mated, and to improve the smoothness of mating.

[0085] Example 3

[0086] This embodiment is a further optimization based on embodiment one or two. In this embodiment, a groove 125 is provided on the first inclined surface 112 of the upper terminal 109, and a protrusion 126 is provided on the second inclined surface 113 of the lower terminal 110. The bottom of the groove 125 and the end of the protrusion 126 are both inclined surfaces. Under the action of the protrusion 126 and the groove 125, the upper terminal 109 and the lower terminal 110 are prevented from sliding and shifting, thereby improving the tightness of the connection between the upper terminal 109 and the lower terminal 110.

[0087] Further optimization involves providing a first clearance groove 127 on the extension 107 that communicates with the mounting groove 108, with the first limiting post 121 located within the first clearance groove 127, thereby allowing clearance for the first limiting post 121 and making the overall structure more compact.

[0088] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0089] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for improving connector SI performance, characterized in that: This includes using connectors with the following structures to improve connector SI performance; The connector includes a male terminal and a female terminal. The male terminal has a housing and a signal terminal inserted into the housing. The housing includes a housing body and an extension connected to the housing body, and the extension has a mounting groove. The signal terminal includes an upper terminal and a lower terminal. After the lower terminal is fixedly installed on the housing body, one end is used to connect to the PCB board, and the other end extends into the mounting groove. The upper terminal is fixedly installed on a plastic part, and the plastic part is rotatably installed in the mounting groove. The upper terminal has a first inclined surface, and the lower terminal has a second inclined surface. The housing body has a linkage mechanism, which is connected to the plastic part. Under normal conditions, the first inclined surface on the upper terminal and the second inclined surface on the lower terminal are in close contact under the action of the linkage mechanism, forming a complete signal terminal structure, and a separation interface is formed at the contact position of the first inclined surface and the second inclined surface. During insertion, the first signal terminal in the female end directly contacts the upper terminal. When the first signal terminal just wipes the separation interface, the female end will contact the linkage mechanism and drive the linkage mechanism to move. The linkage mechanism directly drives the plastic part to rotate, so that the upper terminal and the lower terminal are separated. After insertion, the upper terminal and the lower terminal are separated; by reducing the overall length of the signal terminal, the redundant part of the signal terminal is reduced; A groove is provided on the first inclined surface of the upper terminal, and a protrusion is provided on the second inclined surface of the lower terminal. The bottom of the groove and the end of the protrusion are both inclined surfaces. The protrusions and grooves prevent the upper and lower terminals from sliding or shifting, thus improving the tightness of the connection between the upper and lower terminals.

2. The connector SI performance improvement method according to claim 1, characterized in that: The extension is provided with a mounting hole that communicates with the mounting groove. The plastic part is provided with a rotating shaft on both sides. The plastic part is installed in the mounting groove by rotating the shaft. The rotating shaft on both sides of the plastic part is connected to a linkage mechanism. Under the action of the linkage mechanism on both sides, the first inclined surface is forced to make close contact with the second inclined surface, and the plastic part is made to rotate stably under the action of the rotating shaft.

3. The connector SI performance improvement method according to claim 1, characterized in that: The linkage mechanism includes a first tension spring, a second tension spring, a pull rope, and a wrench. A first limit post and a second limit post are provided on the rotating shaft. The first limit post is horizontally positioned, and the second limit post is vertically positioned. One end of the first tension spring is connected to the extension, and the other end is connected to the first limit post. A pin is provided in the mounting groove, and a clearance groove is provided on the extension. The clearance groove communicates with the mounting groove. One end of the wrench is rotatably connected to the pin, and the other end passes through the clearance groove. The second tension spring is connected to the pull rope. The upper end of the pull rope is connected to the second limit post, and the lower end of the second tension spring is connected to the wrench. Under the action of the first tension spring and the second tension spring, the first inclined surface and the second inclined surface are in close contact. The first tension spring, the second tension spring, and the pull rope are designed to keep the plastic parts in a state of dynamic equilibrium. Under normal conditions, the first and second tension springs ensure that the first and second inclined surfaces are in close contact, thus guaranteeing a tight connection between the upper and lower terminals and forming a complete signal terminal structure. During insertion, the first signal terminal in the female end wipes against the upper terminal. When the first signal terminal just wipes past the separation interface and makes contact with the lower terminal, the female end just makes contact with the wrench. During the continuous mating process, the wrench rotates around the pin, pulling the second tension spring and the pull rope. The plastic part rotates after overcoming the tension of the first tension spring, thus separating the first and second inclined surfaces.

4. The connector SI performance improvement method according to claim 3, characterized in that: The mounting slot contains a first pin, and the lower end of the first tension spring is connected to the first pin.

5. The connector SI performance improvement method according to claim 4, characterized in that: The wrench has a limiting part or notch in the middle, and the lower end of the second tension spring contacts the limiting part or notch to prevent the second tension spring from slipping.

6. The connector SI performance improvement method according to claim 1, characterized in that: The extension is provided with a first clearance groove that communicates with the mounting groove. The first limiting post is located in the first clearance groove, which allows the first limiting post to be moved aside, making the overall structure more compact.

7. A connector SI performance improvement method according to any one of claims 1-5, characterized in that: The male end has guide insertion parts at both ends of the housing body, and insertion grooves are provided on the insertion parts. The female end has insertion ends corresponding to the insertion grooves. The insertion grooves and insertion ends make the male end and female end more stable when inserted.

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