High-rate connector

Abstract

The invention relates to the technical field of circuit connectors, and particularly discloses a high-speed connector which comprises a connecting end A, a middle connector and a connecting end B. The connecting end A and the connecting end B each comprise an insulating shell and a solid electrode column, and an electromagnetic shielding layer A is fixedly arranged on the inner wall of each insulating shell; the intermediate connector comprises an insulating column strip and a conductive sleeve fixed in the insulating column strip. According to the device, the solid electrode column is provided with the clamping groove matched with the elastic conductive folding piece of the conductive sleeve, so that the electrical contact stability of the two connecting ends and the middle connector can be realized, and meanwhile, the connecting stability can be improved; the two connecting ends are provided with the electromagnetic shielding layers A, and the electromagnetic shielding layers B and the electromagnetic shielding layers A are arranged in a staggered manner when the two connecting ends are in butt joint with the intermediate connector, so that shielding gap regions of the electromagnetic shielding layers A can be made up, and the shielding stability of the interface is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit connectors, and more specifically, to high-speed connectors. Background Art

[0002] Wire harness connectors are indispensable nodes in electronic systems. Their functions run through the entire life cycle of equipment design, operation, and maintenance. Electrical connections are achieved through the pin / socket structure to ensure the stable transmission of current or signals in the circuit. For example, in an automobile, the connector connects the engine control unit (ECU) to sensors and actuators to achieve real-time transmission of signals such as power and braking, decomposes complex circuits into multiple modules, and enables quick plugging and unplugging between modules through the connector. In a server, a faulty hard disk can be quickly replaced or a storage module can be expanded through a wire harness connector. High-density wire harnesses adopt a shielding design to effectively block electromagnetic interference and ensure signal integrity.

[0003] Currently, the wire harness connectors usually implement the real-time transmission of electrical signals by inserting pins into a metal conductive sleeve that mates with the pins. The wire harness adopts a shielding design, but there is often a lack of shielding measures at the joints; Moreover, the mating of general wire harnesses is achieved through an interference fit between rubbers to achieve a tight connection. The signal is stably transmitted through the fitting contact between the pins and the metal conductive sleeve. The contact surface between the pins and the metal conductive sleeve is small, resulting in the defect problem of unstable signal transmission and requiring improvement. Therefore, we propose a high-speed connector. Summary of the Invention

[0004] In view of the above technical problems in the related art, the present invention provides a high-speed connector that can solve the above problems.

[0005] To achieve the above technical objectives, the technical solution of the present invention is realized as follows: A high-speed connector includes a connection end A, an intermediate connector, and a connection end B. The connection end A and the connection end B have the same external dimensions and are symmetrically plugged into both ends of the intermediate connector from left to right; Both the connection end A and the connection end B include an insulating shell and a solid electrode column. An electromagnetic shielding layer A is fixedly arranged on the inner wall of the insulating shell; The intermediate connector includes an insulating column bar and a conductive sleeve fixed inside the insulating column bar. When the connection end A and the connection end B are respectively plugged into both ends of the intermediate connector, the solid electrode column is in an inlaid fit connection with the inside of the conductive sleeve.

[0006] Furthermore, a plurality of card slots are circumferentially formed on the circumferential surface of the solid electrode post, and two groups of groove sets are circumferentially formed on the circumferential surface of the conductive sleeve. Each groove set is composed of a plurality of grooves with the same number as the card slots. Elastic conductive flaps are fixedly arranged at the bottom ends of the grooves in each group of groove sets. When the connecting end A and the connecting end B are respectively inserted into both ends of the intermediate connector, the elastic conductive flaps are in close fit with the card slots.

[0007] Furthermore, the card slot includes an inclined surface slot and a flat bottom groove with a slope, and the elastic conductive flap includes an inclined surface elastic piece and an L-shaped elastic piece.

[0008] Furthermore, an electromagnetic shielding layer B is arranged inside the insulating column bar, and the conductive sleeve is located inside the electromagnetic shielding layer B.

[0009] Furthermore, when the connecting end A and the connecting end B are respectively inserted into both ends of the intermediate connector, the outer circumferential surface of the insulating column bar is in close fit with the inner wall of the electromagnetic shielding layer A.

[0010] Furthermore, a limiting ring is integrally formed at the central position of the outer circumferential surface of the insulating column bar, and the outer diameter of the limiting ring is consistent with the outer diameter of the insulating shell.

[0011] Furthermore, both the electromagnetic shielding layer A and the electromagnetic shielding layer B are made of beryllium copper.

[0012] Advantages of the present invention: In the device of the present application, both connecting ends are designed as solid electrode posts, and electrical connection is achieved by being clamped with the intermediate connector. Since the solid electrode post is designed with card slots that cooperate with the elastic conductive flaps of the conductive sleeve, not only can the electrical contact stability between the two connecting ends and the intermediate connector be realized, but also the connection stability can be improved; By arranging the electromagnetic shielding layer A on both connecting ends, and when the two connecting ends are docked with the intermediate connector, the electromagnetic shielding layer B and the electromagnetic shielding layer A are arranged in an interleaved manner, which can make up for the shielding gap area of the electromagnetic shielding layer A and improve the shielding stability at the interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] The following further describes the present invention in detail with reference to the drawings.

[0015] Figure 1 is an exploded view of the solid electrode post and the conductive sleeve; Figure 2 is a cross-sectional view of the connecting ends A, B and the intermediate connector; Figure 3 It is a sectional view showing the cooperation between the solid electrode column and the conductive sleeve.

[0016] In the figure: 1. Connection end A; 101. Insulating shell; 102. Electromagnetic shielding layer A; 103. Solid electrode column; 2. Connection end B; 3. Intermediate connector; 301. Insulating column strip; 302. Limiting ring; 303. Conductive sleeve; 304. Electromagnetic shielding layer B; 4. Card slot; 401. Flat bottom groove with slope; 402. Inclined plane groove; 5. Groove; 6. Elastic conductive flap; 601. Inclined plane elastic flap; 602. L-shaped elastic flap. Specific implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0018] As Figures 1-3 shown, according to the present invention, a high-speed connector is disclosed, which includes a connection end A1, an intermediate connector 3, and a connection end B2. The outer dimensions of the connection end A1 and the connection end B2 are the same and they are symmetrically inserted into both ends of the intermediate connector 3 from left to right; Both the connection end A1 and the connection end B2 include an insulating shell 101 and a solid electrode column 103. An electromagnetic shielding layer A102 is fixedly arranged on the inner wall of the insulating shell 101; The intermediate connector 3 includes an insulating column strip 301 and a conductive sleeve 303 fixed inside the insulating column strip 301. When the connection end A1 and the connection end B2 are respectively inserted into both ends of the intermediate connector 3, the solid electrode column 103 is in an inlaid fit connection with the inside of the conductive sleeve 303. A plurality of card slots 4 are circumferentially formed on the circumferential surface of the solid electrode column 103. Two groups of groove groups are circumferentially formed on the circumferential surface of the conductive sleeve 303. Each groove group is composed of a plurality of grooves 5 with the same number as the card slots 4. An elastic conductive flap 6 is fixedly arranged at the bottom end of each groove 5 in each groove group. When the connection end A1 and the connection end B2 are respectively inserted into both ends of the intermediate connector 3, the elastic conductive flap 6 is in tight fit with the card slot 4.

[0019] Embodiment 1: The solid electrode post 103 is only applicable to connectors with a diameter size ≥ 1 mm. The longitudinal depth of the card slot is one-sixth of the solid electrode post 103. The insulating shell 101, the electromagnetic shielding layer A102, the insulating column strip 301, and the electromagnetic shielding layer B304 are all cylindrical. The outer diameter of the insulating column strip 301 is 0.3 mm larger than the inner diameter of the electromagnetic shielding layer A102. When the connection end A1, the connection end B2 are inserted into the intermediate connector 3, the insulating column strip 301 is in interference friction contact with the electromagnetic shielding layer A102. At the same time, when the solid electrode post 103 is in precise fit with the conductive sleeve 303, the elastic conductive flap 6 is clamped in the card slot 4. Thus, the solid electrode post 103 is elastically clamped with the conductive sleeve 303, which can not only achieve the electrical contact stability between the two connection ends and the intermediate connector 3, but also improve its connection stability. In order to ensure the precise fit between the solid electrode post 103 and the conductive sleeve 303, a blind plug structure can be set on the outer surface of the insulating column strip 301 and the inner wall of the electromagnetic shielding layer A102. For example, a groove is opened on the outer surface of the insulating column strip 301, and a rib is provided on the inner wall of the electromagnetic shielding layer A102. Only when the two cooperate can the two connection ends be docked with the intermediate connector 3.

[0020] In the preferred technical solution, the card slot 4 includes an inclined plane slot 402 and a flat bottom slot 401 at the slope bottom. The elastic conductive flap 6 includes an inclined plane elastic piece 601 and an L-shaped elastic piece 602. The inclined plane elastic piece 601 is in fitting contact with the inclined plane slot 402, and the L-shaped elastic piece 602 is clamped in the flat bottom slot 401 at the slope bottom, realizing the electrical connection stability between the solid electrode post 103 and the conductive sleeve 303 and preventing loosening at the same time.

[0021] In the preferred technical solution, an electromagnetic shielding layer B304 is arranged inside the insulating column strip 301, and the conductive sleeve 303 is located inside the electromagnetic shielding layer B304. Both the electromagnetic shielding layer A102 and the electromagnetic shielding layer B304 are made of beryllium copper. Beryllium copper has a high elastic modulus and strong anti-fatigue property, which is suitable for connectors with a high number of plugging and unplugging times. When the intermediate connector 3 is docked, the electromagnetic shielding layer B304 and the electromagnetic shielding layer A102 are arranged alternately, which can make up for the shielding gap area of the electromagnetic shielding layer A102 and improve the shielding stability at the interface.

[0022] In the preferred technical solution, when the connection end A1 and the connection end B2 are respectively inserted into both ends of the intermediate connector 3, the outer circumferential surface of the insulating column strip 301 is in contact with the inner wall of the electromagnetic shielding layer A102. The outer diameter of the insulating column strip 301 is 0.3 mm larger than the inner diameter of the electromagnetic shielding layer A102. When the connection end A1, the connection end B2 are inserted into the intermediate connector 3, the insulating column strip 301 is in interference friction contact with the electromagnetic shielding layer A102, improving the mating stability of the two connection ends and the intermediate connector 3 during docking.

[0023] In a preferred technical solution, a limiting ring 302 is integrally formed at the central position of the outer circumferential surface of the insulating column strip 301. The outer diameter of the limiting ring 302 is consistent with the outer diameter of the insulating shell 101. When the two connection ends are docked with the intermediate connector 3, the end face of the connection end abuts against the limiting ring 302 to indicate that the fitting is in place.

[0024] In specific use, the solid electrode column 103 is electrically connected to the cable in the connection end. The electromagnetic shielding layer A 102 does not come into contact with the solid electrode column 103. The conductive sleeve 303 is horizontally straight through. When the connection end A 1 and the connection end B 2 are respectively inserted into the left and right ends of the intermediate connector 3, the solid electrode columns 103 of the connection end A 1 and the connection end B 2 are both inserted into the same conductive sleeve 303 at the same time. Thus, the connection end A 1 and the connection end B 2 conduct electrical signal transmission through the solid electrode column 103 and the conductive sleeve 303.

[0025] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high-speed connector, characterized in that: It comprises a connection terminal A (1), an intermediate connector (3) and a connection terminal B (2), wherein the connection terminal A (1) and the connection terminal B (2) have the same external dimensions and are symmetrically plugged into the two ends of the intermediate connector (3); The connecting terminal A (1) and the connecting terminal B (2) both comprise an insulating shell (101) and a solid electrode column (103); an electromagnetic shielding layer A (102) is fixedly provided on the inner wall of the insulating shell (101); The intermediate connector (3) comprises an insulating column bar (301) and a conductive sleeve (303) fixed inside the insulating column bar (301); when the connecting terminal A (1) and the connecting terminal B (2) are respectively plugged into two ends of the intermediate connector (3), the solid electrode column (103) is embedded and matched with the inside of the conductive sleeve (303) for connection.

2. The high-speed connector according to claim 1, characterized in that: The solid electrode column (103) is provided with a plurality of slots (4) around its circumferential surface, and the conductive sleeve (303) is provided with two groups of groove groups around its circumferential surface. The groove groups are composed of a plurality of grooves (5) having the same number as the slots (4), and an elastic conductive folding piece (6) is fixedly provided at the bottom end of the grooves (5) of each group of the groove groups. When the connecting terminal A (1) and the connecting terminal B (2) are respectively plugged into the two ends of the intermediate connector (3), the elastic conductive folding piece (6) and the slot (4) are tightly fitted.

3. The high-speed connector according to claim 2, characterized in that: The card slot (4) comprises an inclined slot (402) and a flat slot with a sloped bottom (401), and the elastic conductive folding piece (6) comprises an inclined spring piece (601) and an L-shaped spring piece (602).

4. The high-speed connector according to claim 1, characterized in that: An electromagnetic shielding layer B (304) is provided inside the insulating column bar (301), and the conductive sleeve (303) is located inside the electromagnetic shielding layer B (304).

5. The high-speed connector according to claim 1, characterized in that: When the connecting terminal A (1) and the connecting terminal B (2) are respectively plugged into the two ends of the intermediate connector (3), the outer circular surface of the insulating column (301) fits against the inner wall of the electromagnetic shielding layer A (102).

6. The high-speed connector according to claim 1, characterized in that: A limiting ring (302) is integrally formed at the center of the outer circumferential surface of the insulating column (301), and the outer diameter of the limiting ring (302) is consistent with the outer diameter of the insulating shell (101).

7. The high-speed connector according to claim 4, characterized in that: The electromagnetic shielding layer A (102) and the electromagnetic shielding layer B (304) are both made of beryllium copper.

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