Electrical connectors

Abstract

This invention discloses an electrical connector, relating to the field of electrical connector technology. The connector includes a sleeve, a connector head, and an elastic element. At least one end of the sleeve has a plurality of elastic arms spaced circumferentially. Each elastic arm has an inwardly folded-over bend at its end. The connector head includes a contact portion and a limiting portion connected to each other. The limiting portion protrudes from the outer periphery of the contact portion and is located inside the sleeve. The contact portion is movably inserted through the sleeve, and its outer peripheral surface is electrically connected to the plurality of bends. The elastic element is located inside the sleeve, and its end abuts against the connector head, allowing the limiting portion to abut against the corresponding bend. Notably, at least one of the outer peripheral surface of the limiting portion and the inner peripheral surface of the sleeve has a higher resistivity than the outer peripheral surface of the contact portion. The technical solution provided by this invention aims to improve the high-frequency performance of the electrical connector.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical connectors, and in particular to an electrical connector. BACKGROUND

[0002] In the related art, the related structure of the electrical connector forms an additional conduction circuit inside, which causes signal reflection, crosstalk and electromagnetic interference, resulting in loss and greatly affecting the high-frequency performance of the electrical connector. SUMMARY

[0003] The main purpose of the present application is to provide an electrical connector, which aims to improve the high-frequency performance of the electrical connector.

[0004] To achieve the above-mentioned purpose, the electrical connector provided by the present application comprises:

[0005] A sleeve, at least one end of the sleeve has a plurality of elastic arms distributed in a circumferential direction, and the end of each elastic arm is provided with a bending part folded inward;

[0006] A connector, the connector comprises a contact part and a limiting part connected to each other, the limiting part is protruded relative to the outer periphery of the contact part, the limiting part is located in the sleeve, the contact part is movably arranged in the sleeve, and the outer peripheral surface of the contact part is in conductive contact with the plurality of bending parts; and

[0007] A resilient member is arranged in the sleeve, and the end of the resilient member abuts against the connector, so that the limiting part can abut against the corresponding bending part.

[0008] Among the outer peripheral surface of the limiting part and the inner peripheral surface of the sleeve, the resistivity of at least one of them is higher than the resistivity of the outer peripheral surface of the contact part.

[0009] In an embodiment, the resistivity of at least one of the outer peripheral surface of the limiting part and the inner peripheral surface of the sleeve is more than five times the resistivity of the outer peripheral surface of the contact part.

[0010] In an embodiment, the limiting part is configured as a high-resistance material or an insulating material as a whole.

[0011] In an embodiment, at least one of the outer peripheral surface of the limiting part and the inner peripheral surface of the sleeve is coated with a first coating layer, and the first coating layer is configured as a high-resistance material or an insulating material.

[0012] In an embodiment, the contact part is configured as a high-conductivity material as a whole, and the outer surface of the contact part is coated with a second coating layer, and the second coating layer is configured as a high-conductivity material.

[0013] In an embodiment, the second coating layer is configured as a noble metal material.

[0014] In one embodiment, both ends of the sleeve have a plurality of elastic arms, and two connectors are correspondingly provided. The two connectors are respectively inserted through both ends of the sleeve, and the two ends of the elastic element abut against and are insulated from the two connectors.

[0015] In one embodiment, one end of the sleeve has a plurality of elastic arms, and the other end is provided with a contact conductive part. One end of the elastic element abuts against and is insulated from the connector, and the other end abuts against and is insulated from the contact conductive part.

[0016] In one embodiment, the electrical connector further includes an insulating sleeve, the sleeve being movably inserted into the insulating sleeve and engaging with the insulating sleeve axially via a positioning structure.

[0017] In one embodiment, the inner circumferential surface of the insulating sleeve is provided with a first positioning protrusion, and the outer circumferential surface of the sleeve is provided with two second positioning protrusions spaced apart along the axial direction. In the axial direction of the sleeve, the first positioning protrusion is slidably disposed between the two second positioning protrusions.

[0018] In one embodiment, the sleeve is formed by welding and fixing at least two separate parts that are spliced ​​together along the axial direction.

[0019] In one embodiment, the sleeve is formed by welding and fixing at least two circumferentially joined parts together.

[0020] In one embodiment, the end face of the contact portion is configured to abut against the mating member;

[0021] The end face of the contact portion is a closed structure; or, the end face of the contact portion has an opening, and the mating member abuts against the periphery of the opening; or, the opening has a plurality of mating portions spaced apart along the circumferential direction, and the mating member abuts against the plurality of mating portions.

[0022] In one embodiment, the sleeve has a circumferentially extending protrusion disposed near the contact portion to reduce the characteristic impedance of the portion of the sleeve near the contact portion.

[0023] In the technical solution of this invention, the formation of unexpected current paths can be effectively suppressed, ensuring that the current is mainly concentrated in the preset current path, avoiding signal reflection, resonance, and energy loss caused by multi-path conduction. At the same time, under the elastic action of the elastic arm, the multiple bending parts and the outer peripheral surface of the contact part maintain stable and reliable conductive contact, further ensuring the continuity of the preset current path and low contact resistance, which helps to weaken the residual stake effect, improve signal integrity, and thus improve the high-frequency performance of the electrical connector. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the electrical connector provided by the present invention;

[0026] Figure 2 for Figure 1 A cross-sectional structural diagram of the electrical connector in the diagram;

[0027] Figure 3 A schematic diagram of another embodiment of the electrical connector provided by the present invention;

[0028] Figure 4 for Figure 3 A cross-sectional structural diagram of the electrical connector in the diagram;

[0029] Figure 5 A schematic diagram of another embodiment of the electrical connector provided by the present invention;

[0030] Figure 6 for Figure 5 A cross-sectional structural diagram of the electrical connector in the diagram;

[0031] Figure 7 This is a schematic diagram of another embodiment of the electrical connector provided by the present invention;

[0032] Figure 8 A schematic diagram of yet another embodiment of the electrical connector provided by the present invention;

[0033] Figure 9 This is a cross-sectional structural diagram of the mating state of an embodiment of the electrical connector and the external insulating mounting component provided by the present invention.

[0034] Explanation of icon numbers:

[0035] 100. Sleeve; 110. Flexible arm; 111. Bending part; 112. Outward protrusion; 120. Contact conductive part; 130. Second positioning protrusion;

[0036] 200. Connector; 201. Mounting hole; 210. Contact part; 211. Through port; 212. End face; 213. Butt joint; 220. Limiting part;

[0037] 300, elastic element; 400, insulating sleeve; 410, first positioning protrusion; 500, insulating mounting component.

[0038] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0041] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0042] This invention proposes an electrical connector. It can be understood that an electrical connector is also called a spring probe.

[0043] Please see Figure 1 and Figure 2In one embodiment of the present invention, the electrical connector includes a sleeve 100 and a connector 200. At least one end of the sleeve 100 has a plurality of elastic arms 110 spaced apart in a circumferential direction. The end of each elastic arm 110 is provided with an inwardly folded bending portion 111. The connector 200 includes a contact portion 210 and a limiting portion 220 connected to each other. The limiting portion 220 protrudes relative to the outer periphery of the contact portion 210 and is located inside the sleeve 100. The contact portion 210 is movably inserted through the sleeve 100, and the outer peripheral surface of the contact portion 210 makes conductive contact with the plurality of bending portions 111.

[0044] In this way, multiple elastic arms 110 abut against the outer periphery of the contact portion 210 through their respective bent portions 111, forming multiple stable and uniform conductive contacts with the outer periphery of the contact portion 210. At the same time, the elastic force provided by the elastic arms 110 ensures tight contact between the bent portions 111 and the contact portion 210. During the axial movement and position adjustment of the connector 200 relative to the sleeve 100, it is ensured that the connector 200 preferentially contacts the contact portion 210 and the bent portion 111, reducing the residual post effect and improving the high-frequency performance of the electrical connector.

[0045] In addition, the limiting part 220 can be limited by the bending part 111, thereby preventing the connector 200 from disengaging from the sleeve 100 and ensuring a stable connection between the connector 200 and the sleeve 100.

[0046] The electrical connector also includes an elastic element 300 disposed within the sleeve 100, the end of the elastic element 300 abutting against the connector head 200, such that the limiting portion 220 abuts against the corresponding bending portion 111.

[0047] Thus, when no external force is applied, the elastic member 300 can hold the connector 200, causing the limiting part 220 and the bending part 111 to come into contact, achieving the maximum extension length of the contact part 210. At the same time, when the connector 200 is subjected to external force, it can also compress the elastic member 300, so that the limiting part 220 is appropriately moved away from the bending part 111, thereby changing the extension length of the contact part 210 to adapt to the connection distance required by the external electrical components.

[0048] Furthermore, the elastic element 300 is insulated from the connector 200 and the sleeve 100, and at least one of the outer peripheral surface of the limiting portion 220 and the inner peripheral surface of the sleeve 100 has a higher resistivity than the outer peripheral surface of the contact portion 210.

[0049] Thus, the main conductive area between the connector 200 and the sleeve 100 is the contact position between the contact portion 210 and the bent portion 111 at the end of the elastic arm 110, thereby forming the preset current path of the electrical connector. Based on this, by increasing the resistivity of at least one of the outer peripheral surface of the limiting portion 220 and the inner peripheral surface of the sleeve 100, current flow through the contact position can be suppressed after accidental contact between the two. It can be understood that the greater the resistivity at the contact position, the better the current path is suppressed; therefore, it is preferable that the outer peripheral surface of the limiting portion 220 and the inner peripheral surface of the sleeve 100 be insulated from each other.

[0050] Therefore, the technical solution of the present invention can effectively suppress the formation of unexpected current paths, ensuring that the current is mainly concentrated in the preset current path, and avoiding signal reflection, resonance and energy loss caused by multi-path conduction. At the same time, under the elastic action of the elastic arm 110, the multiple bent portions 111 and the outer peripheral surface of the contact portion 210 maintain stable and reliable conductive contact, further ensuring the continuity of the preset current path and low contact resistance, which helps to weaken the residual stake effect, improve signal integrity, and thus improve the high-frequency performance of the electrical connector.

[0051] Furthermore, the resistivity of at least one of the outer peripheral surface of the limiting portion 220 and the inner peripheral surface of the sleeve 100 is more than five times that of the outer peripheral surface of the contact portion 210. This further enhances the suppression of unintended current paths, ensuring that the current is primarily concentrated in the preset current path, avoiding signal reflection, resonance, and energy loss caused by multi-path conduction, thereby improving signal integrity and enhancing the high-frequency performance of the electrical connector.

[0052] Specifically, at least the contact point between the limiting part 220 and the sleeve 100 has a high resistance value or can achieve an insulating fit. In particular, the limiting part 220 can be entirely configured as a high-resistance material or an insulating material. Thus, even if the limiting part 220 wears, it can reliably ensure that the contact point with the sleeve 100 has a high resistance value or insulating properties.

[0053] Alternatively, at least one of the outer peripheral surface of the limiting part 220 and the inner peripheral surface of the sleeve 100 may be covered with a first coating, which may be a high-resistivity material or an insulating material. That is, both the limiting part 220 and the sleeve 100 may have a first coating applied to their base structure. The base structure and the first coating may have different properties to meet different requirements. Especially for the sleeve 100, if the base portion has conductivity, the first coating can ensure that the contact area between the limiting part 220 and the sleeve 100 has a high resistance. It should be noted that the first coating applied to the limiting part 220 and the sleeve 100 may be the same material or different materials, as long as they have a relatively high resistance or insulating properties.

[0054] For the contact portion 210, at least the outer surface portion of the contact portion 210 has high conductivity to ensure a low resistance value for the preset current path. Specifically, the high conductivity of the outer peripheral portion of the contact portion 210 helps to ensure a stable electrical connection with low contact resistance between the contact portion 210 and the bending portion 111, while the high conductivity of the end portion of the contact portion 210 helps to ensure a stable electrical connection with low contact resistance between the contact portion 210 and the external structure.

[0055] Specifically, the contact portion 210 can be entirely made of a highly conductive material. In this way, even if the contact portion 210 wears down, it can ensure that the conductive contact points have a relatively low resistance, thereby ensuring a low resistance in the preset current path.

[0056] Alternatively, the outer surface of the contact portion 210 may be coated with a second coating, which is made of a highly conductive material, such as a carbon-based conductive material or a metallic conductive material (including copper and precious metals). The substrate structure of the contact portion 210 can be a non-conductive material or a highly conductive material. When the substrate structure of the contact portion 210 is also made of a highly conductive material, the relationship between the conductivity of the substrate structure and the conductivity of the second coating is not limited. That is, the second coating may have lower conductivity but higher stability and be less prone to wear; for example, the substrate structure of the contact portion 210 may be made of copper or a copper alloy, and the second coating may be made of a precious metal, such as gold, silver, or platinum group metals. Alternatively, the second coating may have higher conductivity to improve the conductivity of the contact portion 210.

[0057] Specifically, the resistivity of the aforementioned high-resistivity material is greater than or equal to... Ω·m, the conductivity corresponding to the above-mentioned high conductivity materials is greater than or equal to S / m.

[0058] For the elastic element 300, the elastic element 300 can be insulated from the connector 200 and the sleeve 100 to prevent current from forming an unintended conductive path through the elastic element 300. Of course, even if the elastic element 300 is conductively connected to the connector 200 and the sleeve 100, the relatively long conductive path formed by the elastic element 300 can effectively suppress current from passing through that conductive path. For details, please refer to... Figure 2 , Figure 4 and Figure 6The connector 200 is configured as a tubular structure, forming an internal mounting hole 201 for mounting the end of the elastic member 300. The extension depth of the mounting hole 201 in the contact portion 210 can be set according to the length of the elastic member 300 to ensure stable installation of the elastic member 300. It is understood that the end of the contact portion 210 away from the limiting portion 220 should be a closed structure, and the specific shape of the connector 200 can be square or circular.

[0059] Please refer to Figure 1 and Figure 2 Two connectors 200 can be respectively provided at both ends of the sleeve 100, providing two external conductive points. Specifically, both ends of the sleeve 100 have multiple elastic arms 110, and two connectors 200 are correspondingly provided. The two connectors 200 are respectively inserted through both ends of the sleeve 100, and the two ends of the elastic element 300 abut against and insulate against the two connectors 200. In this way, a pre-tightening force can be applied to the two connectors 200 through the elastic element 300 to ensure that each contact interface maintains a stable and reliable electrical connection. Since both connectors 200 are of movable design, they have a certain axial floating capability, which can effectively compensate for assembly tolerances and thermal deformation, and improve the reliability of the connection.

[0060] Of course, the electrical connector can also adopt a single-head structure, that is, one end of the sleeve 100 is provided with a connector 200, which serves as one external conductive point, and the other end of the sleeve 100 serves as the other external conductive point. For details, please refer to [link to relevant documentation]. Figures 3 to 6 The sleeve 100 has a plurality of elastic arms 110 at one end and a contact conductive part 120 at the other end. One end of the elastic member 300 abuts against and is insulated from the connector 200, and the other end abuts against and is insulated from the contact conductive part 120. However, the structure of the connector 200 simplifies the number of components and reduces manufacturing costs. It is particularly suitable for applications where one end is fixedly connected and the other end is plugged in. For example, one end is soldered to a circuit board as a fixed end via the contact conductive part 120, and the other end is connected to a probe or socket via the connector 200.

[0061] Further, please refer to Figure 5 and Figure 6 The electrical connector further includes an insulating sleeve 400, into which the sleeve 100 is movably inserted and axially engaged with the insulating sleeve 400 via a positioning structure. By axially moving the sleeve 100 relative to the insulating sleeve 400, the length of the sleeve 100 extending beyond the insulating sleeve 400 can be changed, allowing the electrical connector to connect more flexibly to external structures. The positioning structure ensures that the sleeve 100 will not dislodge from the insulating sleeve 400, thus contributing to the structural stability of the electrical connector. In other embodiments, it can also be as follows...Figure 3 and Figure 4 As shown, no insulating sleeve is installed outside the sleeve 100.

[0062] Further, please refer to Figure 5 and Figure 6 The insulating sleeve 400 has a first positioning protrusion 410 protruding from its inner circumferential surface, and the sleeve 100 has two second positioning protrusions 130 distributed axially at intervals on its outer circumferential surface. The first positioning protrusion 410 is slidably disposed between the two second positioning protrusions 130 along the axial direction of the sleeve 100. Thus, the interval between the two second positioning protrusions 130 provides a certain amount of axial movement for the first positioning protrusion 410, that is, it provides sufficient axial displacement for the sleeve 100. Simultaneously, the two second positioning protrusions 130 and the first positioning protrusion 410 abut against each other, which can limit the travel of the sleeve 100 and prevent the sleeve 100 from disengaging from the two ends of the insulating sleeve 400. In other embodiments, the two second positioning protrusions 130 may protrude from the inner circumferential surface of the insulating sleeve 400, and the first positioning protrusion 410 may protrude from the outer circumferential surface of the sleeve 100.

[0063] In one embodiment, the sleeve 100 can be divided into at least two separate parts. After the relevant structures are assembled, the separate parts are spliced ​​together, and then the splice seams of the separate parts are welded and fixed. This improves the assembly convenience of the electrical connector and also helps to ensure the structural stability of the electrical connector. It is preferable that the sleeve 100 is divided into two separate parts. In other embodiments, it can also be divided into three or other numbers as needed.

[0064] The sleeve 100 can be formed by welding and fixing at least two split parts spliced ​​along the axial direction. In this way, the relevant structure can be assembled into one of the split parts, and then the other split parts can be spliced ​​with the split part, which makes the assembly more convenient.

[0065] Of course, the sleeve 100 can also be formed by welding and fixing at least two parts spliced ​​together in the circumferential direction. This splicing direction makes the circumferential consistency of each part relatively high, and the parts can be conveniently and reliably aligned.

[0066] In other embodiments, the sleeve 100 can also be integrally formed without bending the end of the elastic arm 110 first. Then, the limiting part 220 of the connector 200 is inserted into the sleeve 100, and the end of the elastic arm 110 is bent to form the bent part 111.

[0067] In one embodiment, the end face 212 of the contact portion 210 is configured to abut against the mating member, wherein, it may be, as follows: Figure 1 As shown, the end face 212 of the contact portion 210 is configured as a closed structure, or it can be, as...Figure 7 As shown, the end face 212 of the contact portion 210 has a through-hole 211, and the mating member abuts against the periphery of the through-hole 211, so that the mating member and the end face of the contact portion 210 form a line contact, or, as... Figure 8 As shown, the through-hole 211 has multiple circumferentially spaced mating portions 213. The mating member abuts against the multiple mating portions 213, forming multi-point contact between the mating member and the end face of the contact portion 210. It is worth noting that the mating member forming line contact or multi-point contact with the end face of the contact portion 210 effectively alleviates the current concentration phenomenon caused by geometric abrupt changes at the connection interface for high-frequency signals, reduces abrupt changes in contact area, thereby reducing impedance discontinuity, suppressing signal reflection, resonance, and energy loss, and significantly improving signal integrity and high-frequency transmission performance. The mating member abutting against the periphery of the through-hole 211, or against the multiple circumferentially distributed mating portions 213, can make the current distribution more uniform in the circumferential direction, improving conduction reliability. Specifically, when the through-hole 211 is opened on the end face 212 of the contact portion 210, the contact portion 210 can be configured as a tubular structure, and the inner diameter of the through-hole 211 can be less than or equal to the inner diameter of the contact portion 210.

[0068] In one embodiment, please refer to Figures 7 to 9 The sleeve 100 has a circumferentially extending protrusion 112, which is located near the contact portion 210 to reduce the characteristic impedance of the portion of the sleeve 100 near the contact portion 210. Specifically, the protrusion 112 can be located on the elastic arm 110, with multiple protrusions 112 on the elastic arms 110 forming an intermittent annular structure. Alternatively, the protrusion 112 can be located on the body of the sleeve 100 near the elastic arm 110, forming a closed annular structure. The protrusion 112 effectively thickens the sleeve 100 locally, reducing the impedance at that location. Because the protrusion 112 is relatively close to the contact portion 210, it provides conjugate compensation for the higher contact impedance when the mating member and the contact portion 210 abut and conduct. This effectively balances the problem of high impedance caused by the small contact area at the mating position of the external mating member and the contact portion 210, helping to solve the median impedance problem and facilitating high-frequency characteristic impedance matching. Specifically, please refer to... Figure 9 When the electrical connector is installed inside the insulating mounting 500, the external protrusion 112 and the boss inside the insulating mounting 500 can form a movable locking position to prevent the electrical connector from detaching from the insulating mounting 500.

[0069] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. An electrical connector, characterized by, The electric connector comprises: a sleeve, at least one end of which is provided with a plurality of elastic arms distributed in a circumferential direction, and each of the elastic arms is provided with a bent portion which is inwardly folded at a terminal end thereof; a connector head, which comprises a contact portion and a limiting portion, the limiting portion is protruded relative to an outer periphery of the contact portion, the limiting portion is located in the sleeve, the contact portion is movably arranged in the sleeve, and an outer peripheral surface of the contact portion is electrically contacted with the bent portions; a resilient member, which is arranged in the sleeve and the end of which is abutted against the connector head, so that the limiting portion is abutted against the corresponding bent portion; wherein the electric resistivity of at least one of the outer peripheral surface of the limiting portion and the inner peripheral surface of the sleeve is higher than the electric resistivity of the outer peripheral surface of the contact portion.

2. The electrical connector of claim 1, wherein, The electric resistivity of at least one of the outer peripheral surface of the limiting portion and the inner peripheral surface of the sleeve is more than five times of the electric resistivity of the outer peripheral surface of the contact portion.

3. The electrical connector of claim 1, wherein, The limiting portion is integrally configured as a high-resistance material or an insulating material. Alternatively, at least one of the outer peripheral surface of the limiting portion and the inner peripheral surface of the sleeve is coated with a first coating layer, which is configured as a high-resistance material or an insulating material.

4. The electrical connector of claim 1, wherein, The contact portion is integrally configured as a high-conductivity material, and an outer surface of the contact portion is coated with a second coating layer, which is configured as a high-conductivity material.

5. The electrical connector of claim 4, wherein, The second coating layer is configured as a noble metal material.

6. The electrical connector of claim 1, wherein, Both ends of the sleeve are provided with a plurality of elastic arms, and the connector head is correspondingly provided with two connector heads, which are movably arranged in the two ends of the sleeve, and the two ends of the resilient member are respectively abutted against and insulated with the two connector heads.

7. The electrical connector of claim 1, wherein, One end of the sleeve is provided with a plurality of elastic arms, and the other end is provided with a contact and conducting portion, one end of the resilient member is abutted against and insulated with the connector head, and the other end is abutted against and insulated with the contact and conducting portion.

8. The electrical connector of claim 7, wherein, The electric connector further comprises an insulating sleeve, the sleeve is movably arranged in the insulating sleeve and is axially matched with the insulating sleeve through a positioning structure.

9. The electrical connector of claim 8, wherein, The inner peripheral surface of the insulating sleeve is protruded with a first positioning protrusion, and the outer peripheral surface of the sleeve is protruded with two second positioning protrusions which are distributed in an axial direction, and in the axial direction of the sleeve, the first positioning protrusion is slidably arranged between the two second positioning protrusions.

10. The electrical connector of any one of claims 1 to 9, wherein, The sleeve is formed by welding at least two split parts which are spliced in an axial direction, or the sleeve is formed by welding at least two split parts which are spliced in a circumferential direction. And / or, the end surface of the contact portion is configured to abut against a counterpart. The end surface of the contact portion is a closed structure, or the end surface of the contact portion is provided with a through opening, the counterpart is abutted against the peripheral edge of the through opening, or the through opening is provided with a plurality of abutting portions which are distributed in a circumferential direction, and the counterpart is abutted against the plurality of abutting portions. And / or, the sleeve is provided with an outer protrusion which extends in a circumferential direction, and the outer protrusion is arranged close to the contact portion to reduce the characteristic impedance of the part of the sleeve close to the contact portion.

Images