A multi-d-sub connector hub

Abstract

This invention discloses a hub device for multiple D-sub connectors, belonging to the field of signal cable shielding technology. The invention includes a metal housing and a top cover covering the housing. A panel is provided on the side of the housing. The housing, top cover, and panel enclose a sealed space, and the housing is connected to a grounding wire. A first connector is provided within the sealed space, connected to a signal cable. A notch is provided on one side of the housing, through which one end of the signal cable passes and is positioned outside the housing. The outermost layer of the signal cable within the housing is a shielding layer. A through hole is provided on the panel, allowing one end of the first connector to protrude beyond the panel. This invention, by using a metal housing and signal cable, ensures that the shielding layer of the signal cable contacts the bottom surface of the housing. The connection of the housing to the grounding wire allows the current in the shielding layer to flow into the ground, achieving electromagnetic shielding.

Description

Technical Field

[0001] This invention belongs to the field of signal cable shielding technology, and specifically relates to a hub device with multiple D-sub connectors. Background Technology

[0002] D-sub connectors are a type of connector. D-sub connectors, manufactured and designed, offer a variety of models, options, and accessories, representing a highly economical interconnection solution. These include D-sub connectors for mixed high and low frequencies, high current, and high density. A typical D-sub connector includes an insulating body, a harpoon-shaped locking plate, a back cover, and multiple conductive terminals. After assembly, the harpoon-shaped locking plate is confined within a limiting mechanism, effectively solving the problem of uneven pin height caused by unreliable harpoon-shaped locking and easy rotation in existing D-sub connectors.

[0003] D-sub connectors are typically connected to signal cables, which have shielding layers that need to be grounded. When there are multiple D-sub connectors and multiple signal cables, the shielding layers need to be grounded separately, resulting in poor electromagnetic shielding. Summary of the Invention

[0004] To address the aforementioned shortcomings, this invention provides a hub device for multiple D-sub connectors, which enables the shielding layers of multiple signal cables to be grounded uniformly, resulting in good electromagnetic shielding.

[0005] This invention protects a hub device for multiple D-sub connectors, comprising a metal housing and a top cover covering the housing, a panel on the side of the housing, the housing, the top cover and the panel forming a closed space, and the housing being connected to a grounding wire.

[0006] The enclosed space is provided with a first connector, one end of which is connected to a signal cable. The side of the box away from the panel is provided with a notch. The end of the signal cable away from the first connector passes through the notch and is placed on the outside of the box. The outermost layer of the signal cable inside the box is a shielding layer. The panel is provided with a through hole so that the end of the first connector away from the signal cable can protrude from the panel.

[0007] The box has a bottom surface, and a retaining strip is provided on the bottom surface to fix the first connector.

[0008] Furthermore, the box body is made of aluminum.

[0009] Furthermore, a groove is provided on the bottom surface, and the signal cable can be placed in the groove.

[0010] Furthermore, the trench has a bottom wall, on which a metal sheet is provided. The metal sheet is a flexible elastic sheet, and the angle between the metal sheet and the bottom wall is less than 90°.

[0011] Furthermore, an elastic element is provided between the metal sheet and the bottom wall, and the elastic element provides elastic force to the metal sheet.

[0012] Furthermore, the elastic element is a spring.

[0013] Furthermore, the first connector can be detachably connected to the second connector.

[0014] Beneficial effects:

[0015] This invention utilizes a metal housing and a signal cable with a shielded outermost layer placed within it. This allows the shielding layer of the signal cable to contact the bottom surface of the housing, and the housing is connected to a grounding wire, enabling the current from the shielding layer to flow into the ground. By incorporating locking strips, the first connector is fixed to the bottom of the housing, allowing multiple first connectors to be placed side-by-side. This unifies the shielding current of multiple signal cables, connecting them to the metal housing and thus flowing into the ground to achieve electromagnetic shielding. Furthermore, the large contact area between the shielding layer and the bottom surface of the housing in this invention results in excellent electromagnetic shielding. Attached Figure Description

[0016] 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 these drawings without creative effort.

[0017] in:

[0018] Figure 1 This is a perspective view of a hub device for a multi-D-sub connector according to an embodiment of the present invention.

[0019] Figure 2 for Figure 1 Top view.

[0020] Figure 3 for Figure 1 A 3D view after removing the top cover.

[0021] Figure 4 for Figure 3 Top view.

[0022] Figure 5 for Figure 4 Exploded view.

[0023] Figure 6This is a top view of a multi-D-sub connector hub device according to another embodiment of the present invention after removing the top cover.

[0024] Figure 7 for Figure 6 The main view of section A in the image.

[0025] In the diagram, 1. Box body; 2. Top cover; 3. Panel; 4. Notch; 5. Second connector; 6. First connector; 7. Groove; 8. Metal sheet; 9. Spring; 10. Locking strip. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all 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.

[0027] refer to Figures 1-5 This invention protects a hub device for multiple D-sub connectors. D-sub connectors, also known as DB connectors, are divided into male connectors with pin-like prongs and female connectors with holes. The hub device includes a metal housing 1 and a top cover 2 covering the housing 1. The metal material includes iron, aluminum, and copper, etc. A panel 3 is provided on the side of the housing 1. The housing 1, top cover 2, and panel 3 form a closed space. The two ends of the panel 3 protrude from the housing 1. The panel 3 can be made of any material; when it is metal, the housing 1 can be grounded through the panel 3.

[0028] The enclosed space is provided with a first connector 6, which can be a male or female connector. One end of the first connector 6 is connected to the signal cable. The side of the box 1 away from the panel 3 is provided with a notch 4. The end of the signal cable away from the first connector 6 passes through the notch 4 and is placed on the outside of the box 1. The outermost layer of the signal cable in the box 1 is a shielding layer. The panel 3 is provided with a through hole so that the end of the first connector 6 away from the signal cable can protrude from the panel 3.

[0029] The box body 1 has a bottom surface, and a retaining strip 10 is provided on the bottom surface. The retaining strip 10 can fix the first connector 6. The retaining strip 10 is set perpendicular to the bottom surface according to the external dimensions and shape of the first connector 6, so that the first connector 6 can be fixed on the bottom surface.

[0030] In one specific embodiment, the housing 1 is made of aluminum. Aluminum has good electrical conductivity and is lightweight, making it suitable for use as a hub device.

[0031] refer to Figure 6In another specific embodiment, a groove 7 is provided on the bottom surface, and the signal cable can be placed in the groove 7. The groove 7 is in the shape of a regular shape such as an arc or a square, or an irregular shape, preferably an arc, as the arc shape can better fit the outer surface of the signal cable.

[0032] The trench 7 has a bottom wall with a metal sheet 8 mounted on it. The metal sheet 8 is a flexible spring; when the signal cable presses against the metal sheet 8, the metal sheet 8 can move closer to the bottom wall. When the signal cable is removed, the metal sheet 8 returns to its unpressed state. The angle between the metal sheet 8 and the bottom wall is less than 90°. The metal sheet 8 is welded to the bottom wall at an angle. When the signal cable is inserted, part of the signal cable is suspended and cannot contact the trench 7. Increasing the number of metal sheets 8 increases the probability of contact with the shielding layer, thus improving the shielding effect. There are multiple metal sheets 8, and each angle can be the same or different. The preferred angles between the metal sheet 8 and the bottom wall are 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, and 60°.

[0033] refer to Figure 7 In one specific embodiment, an elastic element is provided between the metal sheet 8 and the bottom wall, which provides elastic force to the metal sheet 8. The elastic element helps the metal sheet 8 maintain a set angle. The elastic element is preferably a spring 9.

[0034] refer to Figure 5 The first connector 6 can be detachably connected to the second connector 5. The second connector 5 and the first connector 6 are plug-in type; that is, if the first connector 6 is male, the second connector 5 is female, and vice versa. The second connector 5 can be omitted if needed.

[0035] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A hub device with multiple D-sub connectors, characterized in that, It includes a metal box (1) and a top cover (2) covering the box (1). The side of the box (1) is provided with a panel (3). The box (1), the top cover (2) and the panel (3) form a closed space. The box (1) is connected to a grounding wire. The enclosed space is provided with a first connector (6), one end of which is connected to a signal cable. The side of the box (1) away from the panel (3) is provided with a notch (4). The end of the signal cable away from the first connector (6) passes through the notch (4) and is placed on the outside of the box (1). The outermost layer of the signal cable in the box (1) is a shielding layer. The panel (3) is provided with a through hole so that the end of the first connector (6) away from the signal cable can protrude from the panel (3). The box body (1) has a bottom surface, and a retaining strip (10) is provided on the bottom surface, which can fix the first connector (6); The bottom surface is provided with a groove (7), and the signal cable can be placed in the groove (7); The groove (7) has a bottom wall, on which a metal sheet (8) is provided. The metal sheet (8) is a flexible elastic sheet, and the angle between the metal sheet (8) and the bottom wall is less than 90°. An elastic element is provided between the metal sheet (8) and the bottom wall, and the elastic element can provide elastic force to the metal sheet (8).

2. The hub device with multiple D-sub connectors according to claim 1, characterized in that, The box body (1) is made of aluminum.

3. The hub device with multiple D-sub connectors according to claim 1, characterized in that, The elastic element is a spring (9).

4. The hub device with multiple D-sub connectors according to claim 1, characterized in that, The first connector (6) can be detachably connected to the second connector (5).

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