Electrical connector
By incorporating an extension portion at the grounding point of the electrical connector that interlocks with the signal connection portion, the problem of insulator separation from the outer conductor under external force is solved, thereby improving EMI characteristics and signal stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 爱沛股份有限公司
- Filing Date
- 2021-06-14
- Publication Date
- 2026-07-14
AI Technical Summary
Existing jack connectors are prone to insulator separation from outer conductor under external force, leading to signal leakage and deterioration of EMI characteristics.
An electrical connector is designed in which an extension is provided in the grounding connection part of the grounding contact. The extension extends and intersects with the signal connection part and engages with the grounding connection part to form a closed or narrowed opening of the signal connection part, thereby ensuring the stable fixation of the housing.
It effectively suppresses shell peeling, reduces signal leakage, and improves the EMI characteristics of the electrical connector.
Smart Images
Figure CN115777164B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an electrical connector. Background Technology
[0002] A connector device is known that electrically connects a signal transmission component to a substrate circuitry by engaging a plug connector connected to a signal transmission component with a socket connector mounted on a substrate (see, for example, Patent Document 1). The socket connector of Patent Document 1 comprises: an outer conductor that engages with a cylindrical conductor of the plug connector; an inner conductor that contacts the conductor of the plug connector inside the outer conductor; and an insulator.
[0003] [Background Technical Documents]
[0004] [Patent Literature]
[0005] Patent Document 1: Japanese Patent No. 5024449 Summary of the Invention
[0006] [The problem the invention aims to solve]
[0007] Here, in the socket connector described in Patent Document 1, for example, when a load is applied to the insulator (shell) from the outside, there is a risk that the insulator and the inner conductor will peel off together with the outer conductor. Although a configuration to prevent the insulator from peeling off from the outer conductor is also considered, in order to adopt such a configuration, an opening must be formed in the outer conductor (to retain the opening of the insulator). Because of the formation of such an opening, signals inside the connector are prone to leakage to the outside (which can easily generate noise), and the EMI characteristics of the connector are deteriorated.
[0008] The present invention was made in view of the aforementioned facts, and its object is to provide an electrical connector that can improve EMI characteristics while properly maintaining the housing.
[0009] [Technical means to solve the problem]
[0010] An electrical connector according to one aspect of the present invention is mounted on a substrate and includes: a first contact having: a cylindrical fitting portion fitting into a grounding contact of a counterpart connector; and a grounding connection portion connected to the substrate; a second contact being arranged in a manner surrounded by the fitting portion and electrically connected to a signal contact of the counterpart connector; a housing holding the first contact and the second contact in an insulated state; and an extension portion fixing the housing to the first contact; and the second contact having: a center conductor contacting the signal contact of the counterpart connector; and a signal connection portion extending along the substrate from the center conductor and connected to a terminal portion of the substrate; the extension portion extending from the housing in a direction intersecting the extension direction of the signal connection portion, engaging with the grounding connection portion outside the fitting portion, thereby fixing the housing to the first contact.
[0011] In an electrical connector according to one aspect of the present invention, an extension portion extending from the housing holding the first and second contacts toward the direction intersecting the extending direction of the signal connection portion connected to the terminal portion of the substrate engages with the ground connection portion of the first contact outside the mating portion. Therefore, even when a load is applied to the housing from the outside, for example, by having the extension portion connected to the housing engage with the ground connection portion outside the mating portion, housing peeling can be appropriately suppressed. In other words, according to an electrical connector according to one aspect of the present invention, the housing can be appropriately held. Here, in order to adopt the configuration of engaging the extension portion for holding the housing with the ground connection portion, an opening for arranging the housing (filled with resin, etc., constituting the housing) needs to be provided in the ground connection portion of the first contact. In the electrical connector of the present invention, since the extension portion for holding the housing is provided in a direction intersecting the extending direction of the signal connection portion, it is possible to adopt a configuration where the opening of the ground connection portion of the first contact holding the housing is not formed in the extending direction of the signal connection portion. Therefore, in the ground connection portion of the first contact, the opening in the extending direction of the signal connection portion can be miniaturized or closed. Therefore, the structure of the signal connection part is designed to prevent signal leakage (design to reduce noise generation), thereby improving the EMI characteristics of the electrical connector.
[0012] Alternatively, multiple extension sections can be provided. With this configuration, the extension sections engage at multiple locations of the grounding connection section, which can more properly retain the casing.
[0013] Alternatively, the extension portions can be arranged in pairs at positions symmetrical with respect to the center line of the connection center conductor and the signal connection portion when viewed from the mating direction with the other connector. This allows for a more balanced retention of the housing from both sides, thus ensuring proper housing stability.
[0014] Alternatively, the extension portion can be positioned orthogonal to the extending direction of the signal connection portion. This allows the opening for retaining the housing to be formed at a position sufficiently separated from the extending direction of the signal connection portion. Consequently, this configuration prevents signals from the signal connection portion from leaking outwards through the opening for retaining the housing, thereby improving the EMI characteristics of the electrical connector.
[0015] Alternatively, in the grounding connection portion, an opening is formed in the extending direction of the extension portion, and the extension portion is provided in a manner that fits into the opening. This configuration allows the extension portion to pass appropriately to the outside of the fitting portion while closing the opening used to hold the housing, thus enabling more appropriate holding of the housing.
[0016] Alternatively, the grounding connection portion may have a narrow, wide portion outside the mating portion, with the width of the opening reduced. This configuration makes it less likely for signals from the signal connection portion to leak outwards from the opening used to hold the housing, further improving the EMI characteristics of the electrical connector. Furthermore, an engaging extension portion is also provided in the narrow, wide portion of the first contact, allowing for more proper housing retention.
[0017] Alternatively, the housing may be provided only in the area within the mating portion in the extending direction of the signal connector. Therefore, in order to keep the resin within the mating portion and prevent it from flowing outside, the opening in the extending direction of the signal connector at the end of the housing other than the extension portion can be made smaller or closed, resulting in a configuration where signals from the signal connector are less likely to leak outwards, thus further improving the EMI characteristics of the electrical connector.
[0018] Alternatively, the grounding connection may not have an opening in the extending direction of the signal connection. This makes it less likely for signals from the signal connection to leak outwards, further improving the EMI characteristics of the electrical connector.
[0019] [The effects of the invention]
[0020] According to the present invention, EMI characteristics can be improved while the housing of the electrical connector can be properly maintained. Attached Figure Description
[0021] Figure 1 This is a perspective view of a connector device according to an embodiment of the present invention.
[0022] Figure 2 This is a perspective view of a socket connector mounted on a printed wiring substrate.
[0023] Figure 3 (a) to (d) are diagrams showing the jack connectors. Figure 3 (a) is a top view. Figure 3 (b) is a bottom view. Figure 3 (c) is a 3D view. Figure 3 (d) is along Figure 3 (a) Sectional view of line AA.
[0024] Figure 4 (a) to (c) are diagrams showing the grounding contacts of the jack connector. Figure 4 (a) is a top view. Figure 4 (b) is a bottom view. Figure 4 (c) is a 3D view.
[0025] Figure 5 (a) to (c) are diagrams showing the signal contacts of the jack connector. Figure 5 (a) is a top view. Figure 5(b) is a bottom view. Figure 5 (c) is a 3D view.
[0026] Figure 6 (a) to (c) are diagrams showing the insulator (housing and extension) of the jack connector. Figure 6 (a) is a top view. Figure 6 (b) is a bottom view. Figure 6 (c) is a 3D view.
[0027] Figure 7 (a) to (b) are diagrams showing the mating state of the plug connector and the socket connector. Figure 7 (a) is a top view. Figure 7 (b) is a sectional view along line AA in (a).
[0028] Figure 8 (a) to (b) are diagrams showing the connector device of the comparative example. Figure 8 (a) is a perspective view of the connector device of the comparative example. Figure 8 (b) is a perspective view of the socket connector included in the connector device of the comparative example.
[0029] Figure 9 This is a chart representing the EMI characteristics of a connector assembly.
[0030] Figure 10 Figures (a) to (c) are diagrams showing the comparative example of the socket connector. Figure 10 (a) is a top view. Figure 10 (b) is a bottom view. Figure 10 (c) is a 3D view.
[0031] Figure 11 Figures (a) to (c) are diagrams showing variations of the jack connector. Figure 11 (a) is a top view. Figure 11 (b) is a bottom view. Figure 11 (c) is a 3D view.
[0032] Figure 12 Figures (a) to (c) are diagrams showing variations of the jack connector. Figure 12 (a) is a top view. Figure 12 (b) is a bottom view. Figure 12 (c) is a 3D view. Detailed Implementation
[0033] Because the embodiments of the present invention described below are illustrative of the invention, the present invention should not be limited to the following content. In the following description, the same reference numerals are used for the same element or elements having the same function, and repeated descriptions are omitted.
[0034] [Overview of Connector Device]
[0035] refer to Figure 1 and Figure 2 The general outline of connector device 1 will be described. For example... Figure 1 As shown, the connector device 1 includes a socket connector 10 (electrical connector) and a plug connector 100 (peer connector). The socket connector 10 is mounted on a substrate 200 (reference) by means of, for example, soldering. Figure 2 The plug connector 100 is connected to the coaxial cable SC (signal transmission component) and engages with the jack connector 10. In the connector assembly 1, the plug connector 100, mounted on the terminal portion of the coaxial cable SC, electrically connects the coaxial cable SC to the circuitry of the substrate 200 by engaging with the jack connector 10 mounted on the substrate 200. Furthermore, while the substrate 200 may be, for example, a printed wiring substrate, it is not limited to this. Alternatively, other signal transmission components for transmitting signals from various electronic devices may be used instead of the coaxial cable SC.
[0036] Furthermore, in the following description, the mating direction of the socket connector 10 and the plug connector 100 of the connector device 1 is referred to as the "Z direction," the axial direction of the coaxial cable SC in the mating state is referred to as the "X direction," and the direction orthogonal to the Z and X directions is referred to as the "Y direction." Additionally, regarding the Z direction, for example, [the following is an explanation of the Z direction]. Figure 1 In the illustrated configuration, the plug connector 100 side is referred to as "upper," and the jack connector 10 side is referred to as "lower." Furthermore, regarding the X direction, the end of the coaxial cable SC where the plug connector 100 is mounted is referred to as "front," and the opposite end is referred to as "rear."
[0037] [Jack Connector]
[0038] Next, refer to Figure 3 (a)~ Figure 6 (c) Details of the jack connector 10 are described. The jack connector 10 is mounted on the substrate 200 (reference). Figure 2 ), which fits into the plug connector 100 installed on the coaxial cable SC (reference) Figure 1 ).like Figure 3 (a)~ Figure 3 As shown in (c), the jack connector 10 includes a grounding contact 11 (first contact), a signal contact 12 (second contact), and an insulator 13 (housing 13a and extension 13b).
[0039] (Grounding connection)
[0040] like Figure 4 (a)~ Figure 4As shown in (c), grounding contact 11 has a grounding contact 101 that fits into the plug connector 100 (reference). Figure 7 (b) The cylindrical fitting portion 11a and the grounding connection portion 11b connected to the substrate 200. The grounding contact 11 is electrically connected to the grounding contact 101 (reference). Figure 7 (b) constitutes a grounding circuit. The grounding contact 11 is formed of, for example, a thin plate-shaped metal component.
[0041] The fitting portion 11a is formed into a cylindrical shape with the Z-direction as the axial direction, and the outer shell 13a is housed within its cylindrical opening. The inner circumferential surface of the fitting portion 11a, except for the area where the outer shell 13a is not formed, is in contact with the outer circumferential surface of the outer shell 13a (see reference). Figure 3 (a)). On the outer peripheral surface of the fitting portion 11a, a recess 11x is formed that is recessed radially inward (towards the center side of the fitting portion 11a) throughout the entire circumference (see reference). Figure 3 (d)). The mating portion 11a connects with the protrusion 101x formed on the outer periphery of the grounding contact 101 of the plug connector 100 via the recess 11x (see reference). Figure 7 (b) Engagement, fitting into the grounding contact 101 of the plug connector 100 (details to be described later). The engagement portion 11a is provided erected from the grounding connection portion 11b.
[0042] Grounding connection part 11b, as shown Figure 2 As shown, it is disposed on the substrate 200 in such a way as to be connected to the ground terminal portion 202 of the substrate 200. Figure 4 (a)~ Figure 4 As shown in (c), openings 11c, 11c, and 11e, extending through the Z direction, are formed in the grounding connection portion 11b along the outer periphery of the fitting portion 11a. Openings 11c and 11c are formed at positions symmetrical with respect to the center line connecting the center conductor 12a and the signal connection portion 12b when viewed from the Z direction; specifically, they are formed at positions opposite each other in the Y direction. Openings 11c and 11c are formed in the extending direction of the extension portion 13b, which will be described later (see reference). Figure 3 (b)). The extension portion 13b (see reference) is filled in the openings 11c, 11c. Figure 3 (b) Opening 11e is formed at a position where it intersects (more specifically, orthogonally) the line segment connecting openings 11c, 11c. Opening 11e is formed in the extension direction of the signal connection portion 12b of the signal contact 12, which will be described later (see reference). Figure 3(b)). In this embodiment, the exposed portion 12x, described later, is housed within the area surrounded by the fitting portion 11a of the grounding contact 11. During manufacturing, a carrier (not shown) used to connect the plurality of grounding contacts 11 extends from the signal connection portion 12b through the opening 11e, and the carrier is cut off at a specific location, thereby forming the exposed portion 12x. The opening 11e is formed by narrow intervals for inserting the carrier.
[0043] Additionally, the grounding connection portion 11b has narrow and wide portions 11d, 11d (see reference) outside the fitting portion 11a, which are provided in a way that narrows the width of the opening 11c. Figure 3 (b) Narrow width portions 11d, 11d are provided continuously with the grounding connection portion 11b at both ends of the opening 11c in the X direction. The narrow width portions 11d, 11d are formed as protrusions protruding in opposite directions. In addition, the narrow width portions 11d, 11d are provided between the housing 13a and the extension portion 13b. Furthermore, the position of the narrow width portions 11d, 11d is not limited to this, for example, it may be provided near the center of the opening 11c in the Y direction. In addition, the grounding connection portion 11b may have only one narrow width portion 11d corresponding to each opening 11c, or it may have three or more narrow width portions 11d corresponding to each opening 11c.
[0044] (signal contact)
[0045] Signal contact 12, for example Figure 3 (a)~ Figure 3 As shown in (c), the signal contact 102 of the plug connector 100 is electrically connected to the plug connector 100 (reference) and is arranged in a manner surrounded by the mating portion 11a. Figure 7 (b) Signal contact 12 is mounted on housing 13a. Signal contact 12 is, for example, a conductor for signal transmission formed from a thin sheet-like metal component. Signal contact 12 is as follows: Figure 5 (a)~ Figure 5 As shown in (c), it has a center conductor 12a and a signal connection part 12b.
[0046] The center conductor 12a is the signal contact 102 of the plug connector 100 (reference). Figure 7 (b) The conductor in contact. The center conductor 12a is formed in a cylindrical shape with the Z-direction as the axial direction, and contacts the signal contact 102 on its outer peripheral surface (see reference). Figure 7 (b) The center conductor 12a is mounted on the support portion 13y of the housing 13a (see reference). Figure 3 (a)). The signal connection portion 12b extends along the substrate 200 from the center conductor 12a and is connected to the signal terminal portion 201 of the substrate 200 (see reference). Figure 2In other words, the signal is connected to the lower end of the center conductor 12a via the connector 12b, and simultaneously moves forward in the X direction (approaching the fitting part 11a and away from the inner conductor SC1 of the coaxial cable SC, as referenced). Figure 7 (b)))Extends and connects with the signal terminal portion 201 of the substrate 200 (reference) Figure 2 Contact. Although the shape of the signal connector 12b is not limited, for example... Figure 5 (a) and Figure 5 As shown in (c), it is a plate-shaped component, which, when viewed from the Z direction, is roughly rectangular in shape with a length in the Y direction that is less than its length in the X direction.
[0047] Signal connector 12b, for example Figure 3 As shown in (a), the top (front end) portion of the signal connector 12b, which is housed within the area surrounded by the mating portion 11a of the grounding contact 11, is exposed to the outside. "Exposed to the outside" means, for example, that it can be seen from the outside. More specifically, the signal connector 12b is configured such that a portion of it, namely the exposed portion 12x, is visible when viewed in the Z direction from the plug connector 100 toward the substrate 200. The exposed portion 12x is located within the signal connector 12b and intersects with the signal terminal portion 201 (see reference 12b). Figure 2 ) contact area.
[0048] (Outer casing and extensions)
[0049] Insulator 13 is a component used to insulate the grounding contact 11 from the signal contact 12, and is made of resin. Insulator 13 as... Figure 6 (a)~ Figure 6 As shown in (c), it has a housing 13a and an extension portion 13b.
[0050] The housing 13a maintains the grounding contact 11 and the signal contact 12 in an insulated state. The housing 13a is generally disk-shaped and is a component housed inside the fitting portion 11a. The outer peripheral surface of the housing 13a, except for the area where the housing 13a is not formed, is in contact with the inner peripheral surface of the fitting portion 11a (see reference). Figure 3 (a)). Additionally, a portion of the outer peripheral surface of the outer casing 13a is in contact with the narrow and wide portions 11d, 11d (see reference). Figure 3 (b)). The outer shell 13a is shown in Figure (a). Figure 6 As shown in (c), in its central part, there is a support portion 13y for mounting the center conductor 12a.
[0051] Casing 13a Figure 3As shown in (a), the housing 13a is provided only in the area within the mating portion 11a in the extending direction of the signal connection portion 12b. That is, the housing 13a is not the shape of the opening 11e formed in the extending direction (X direction) of the signal connection portion 12b (the unreached shape). In particular, the housing 13a is provided only in the area closer to the center conductor 12a than the top of the signal connection portion 12b in the extending direction of the signal connection portion 12b as viewed from the mating direction of the plug connector 100. The housing 13a is formed such that the contact area of the signal connection portion 12b with the signal terminal portion 201, i.e., the exposed portion 12x, is exposed to the outside. The housing 13a can also be formed, for example, by cutting off a portion of the housing 13a to expose the exposed portion 12x to the outside.
[0052] The extension portion 13b secures the housing 13a to the grounding contact 11. The extension portion 13b extends from the housing 13a in a direction intersecting (or orthogonal) the extending direction of the signal connection portion 12b, and engages with the grounding connection portion 11b outside the fitting portion 11a, thus securing the housing 13a to the grounding contact 11. Figure 3 As shown in (a), the insulator 13 has a plurality of (more specifically, a pair) extension portions 13b, 13b. The pair of extension portions 13b, 13b are positioned symmetrically with respect to the center line connecting the center conductor 12a and the signal connection portion 12b when viewed from the Z direction; more specifically, they are positioned opposite each other in the Y direction. Figure 6 (a)~ Figure 6 As shown in (c), the extension portions 13b, 13b are connected to the outer casing 13a and extend in directions that are separated from each other in the Y direction (outer side of the Y direction).
[0053] A pair of extension portions 13b, 13b are provided at positions corresponding to a pair of openings 11c, 11c. That is, one extension portion 13b is filled with resin through one opening 11c, and the other extension portion 13b is filled with resin through the other opening 11c (see reference). Figure 3 (b)). The extension portions 13b, 13b pass through the openings 11c, 11c of the grounding connection portion 11b formed in a direction intersecting the extending direction (X direction) of the signal connection portion 12b (see reference). Figure 4 (a)~(c)), extending to the outside of the fitting portion 11a (see reference) Figure 3 (a) Figure 3 (c) Furthermore, the extension portions 13b, 13b are provided outside the fitting portion 11a in such a way as to disconnect a portion of the grounding connection portion 11b, and are engaged with the grounding connection portion 11b (see reference). Figure 3 (c)). Furthermore, the extension portions 13b, 13b also engage with the narrow and wide portions 11d, 11d provided in the grounding connection portion 11b (see reference). Figure 3(b)). In this way, by engaging the extension portions 13b, 13b with the grounding connection portion 11b and the narrow and wide portions 11d, 11d, the outer casing 13a connected to the extension portions 13b, 13b can be effectively prevented from peeling off from the grounding contact 11. In this way, the extension portions 13b, 13b fix the outer casing 13a to the grounding contact 11.
[0054] [Connector assembly (fitting state of jack connectors and plug connectors)]
[0055] Next, refer to Figure 7 (a) and Figure 7 (b) The connector device 1 in which the socket connector 10 and the plug connector 100 are engaged with each other will be described in detail.
[0056] In addition, the plug connector 100, as Figure 7 As shown in (b), the device includes a grounding contact 101, a signal contact 102, and a housing 103. The grounding contact 101 is a cylindrical contact component fitted into the grounding contact 11. The grounding contact 101 is connected to the outer conductor of the coaxial cable SC. A protrusion 101x protruding radially inward (towards the center of the cylindrical shape of the grounding contact 101) is formed along the entire circumference of the lower end of the grounding contact 101. The signal contact 102 is electrically connected to the signal contact 12. The signal contact 102 is mounted inside the housing 103, connected to the inner conductor SC1 of the coaxial cable SC, and connected to the center conductor 12a of the signal contact 12 of the jack connector 10. The housing 103 is cylindrical, holding the grounding contact 101 and the signal contact 102 in an insulated state. The outer circumferential surface of the housing 103 is in contact with the inner circumferential surface of the grounding contact 101.
[0057] like Figure 7 As shown in (b), the socket connector 10 and the plug connector 100 are engaged with each other via the recess 11x of the mating portion 11a of the socket connector 10. In the engaged state, the signal contact 102 of the plug connector 100 contacts the center conductor 12a of the socket connector 10. Thus, the signal contact 102 connected to the inner conductor SC1 of the coaxial cable SC and the signal terminal portion 201 connected to the substrate 200 via the signal connection portion 12b (see reference) are connected. Figure 2 The center conductor 12a of the connector 100 contacts the center conductor 12a of the connector 100, forming the signal transmission circuit of the connector device 1. Furthermore, in the mating state, the grounding contact 101 of the plug connector 100 contacts the mating portion 11a of the jack connector 10. Thus, the grounding contact 101, connected to the outer conductor of the coaxial cable SC, and the grounding terminal portion 202 (refer to grounding connection portion 11b connected to the substrate 200) are connected to the grounding terminal portion 202 of the substrate 200. Figure 2 The mating part 11a of the connector makes contact with the grounding circuit of the connector device 1.
[0058] Furthermore, in connector device 1, in the mating state, such as Figure 7 As shown in (b), the signal connector 12b is housed within the area surrounded by the grounding contact 101 of the plug connector 100. Furthermore, in the unengaged state, as... Figure 3 As shown in (a), the exposed portion 12x of the signal connection portion 12b is exposed to the outside (that is, it is configured to be visible).
[0059] Next, refer to Figure 8 (a)~ Figure 9 The EMI (Electromagnetic Interference) characteristics of connector device 1 are explained.
[0060] First, refer to Figure 8 (a) and Figure 8 (b) The connector device 501 of the comparative example will be described. The connector device 501 is the same as the connector device 1 of this embodiment, and is a connector device that electrically connects the signal transmission component to the circuit of the substrate. Figure 8 (a) indicates that the jack connector 510 and the plug connector 600 are in a mating state. For example... Figure 8 As shown in (b), the connector assembly 501 has a socket connector 510 with a grounding contact 511, a signal contact 512, and an insulator 513. The grounding contact 511 has a mating portion 511a and a grounding connection portion 511b. The signal contact 512 has a center conductor 512a and a signal connection portion 512b extending outward from the center conductor 512a. The insulator 513 has a housing 513a and an extension portion 513b.
[0061] In the comparative example connector device 501, in the socket connector 510, the grounding connector 511b has openings 511c and 511e extending in the Z direction along the outer periphery of the mating portion 511a. The openings 511c and 511e are formed facing each other in the X direction. Specifically, opening 511c is formed with reference to the center conductor 512a in a direction opposite to the extending direction of the signal connection portion 512b, and opening 511e is formed with reference to the center conductor 512a in the extending direction of the signal connection portion 512b. Extension portions 513b are filled into openings 511c and 511e. A pair of extension portions 513b are formed facing each other in the X direction. The extension portions 513b and 513b extend from the housing 513a in the direction of extending the signal connection portion 512b and in the opposite direction. They engage with the grounding connection portion 511b outside the fitting portion 511a, thereby fixing the housing 513a to the grounding contact 511. In the connector device 501 of the comparative example, in order to adopt the configuration of engaging the extension portions 513b and 513b used to hold the housing 513a with the grounding connection portion 511b, openings 511c and 511e for arranging the extension portions 513b and 513b (for filling the resin, etc. constituting the extension portions 513b and 513b) are provided in the grounding connection portion 511b of the grounding contact 511. Here, in order to realize the signal terminal portion 201 (refer to Figure 2 For contact with the signal connection portion 512b, the width of the opening 511e used to fill the extension portion 513b needs to be set to a required width or more. Therefore, in the connector device 501 of the comparative example, the opening 511e formed in the extension direction of the signal connection portion 512b of the grounding connection portion 511b is larger than the opening 11e in the extension direction of the signal connection portion 12b formed in the grounding connection portion 11b of the socket connector 10 (the opening of the connector device 1 in this embodiment, and the opening formed only for the purpose of connecting the carrier of multiple grounding contacts 11 for the purpose of insertion) (see reference). Figure 3 (a)~ Figure 3 (c)).
[0062] Figure 9 This is a graph showing the EMI characteristics of the signal strength leaked to each connector device using connector device 1 and connector device 501 of the comparative example. Figure 9 In the graph, the vertical axis represents far-field gain (dBi), and the horizontal axis represents frequency (GHz). For example, the higher the vertical axis, the worse the EMI characteristics. Additionally, Figure 9 The values of connector device 501 in the comparative example are represented by triangles, and the values of connector device 1 in this embodiment are represented by circles. For example... Figure 9As shown, the EMI characteristics of connector device 1 are about 10 dBi better than those of connector device 501 in the comparative example in any frequency band.
[0063] [Effects]
[0064] Next, the effects of the socket connector 10 will be explained.
[0065] The plug connector 10 of this embodiment is an electrical connector mounted on the substrate 200, and includes: a ground contact 11 having: a cylindrical fitting portion 11a fitting into the ground contact 101 of the plug connector 100; and a grounding connection portion 11b connected to the substrate 200; a signal contact 12 arranged in a manner surrounded by the fitting portion 11a and electrically connected to the signal contact 102 of the plug connector 100; a housing 13a that holds the ground contact 11 and the signal contact 12 in an insulated state; and an extension portion 13b that extends the housing 13a. Fixed to grounding contact 11; signal contact 12 has: a center conductor 12a that contacts signal contact 102 of plug connector 100; and a signal connection portion 12b that extends along substrate 200 from the center conductor 12a and is connected to signal terminal portion 201 of substrate 200; an extension portion 13b extends from housing 13a in a direction intersecting the extension direction of signal connection portion 12b, and engages with grounding connection portion 11b outside of fitting portion 11a, thereby fixing housing 13a to grounding contact 11.
[0066] In one aspect of the electrical connector of the present invention, an extension portion 13b extending from the housing 13a holding the ground contact 11 and the signal contact 12 in a direction intersecting the extending direction of the signal connection portion 12b connected to the signal terminal portion 201 of the substrate 200 engages with the ground connection portion 11b of the ground contact 11 outside the engagement portion 11a. Therefore, even when a load is applied to the housing 13a from the outside, for example, by having the extension portion 13b connected to the housing 13a engage with the ground connection portion 11b outside the engagement portion 11a, peeling of the housing 13a can be appropriately suppressed. In other words, according to one aspect of the electrical connector of the present invention, the housing 13a can be appropriately retained. Here, in order to employ a configuration in which the extension portion 13b holding the housing 13a engages with the ground connection portion 11b, an opening for arranging the housing 13a (for filling the resin or the like constituting the housing 13a) needs to be provided in the ground connection portion 11b of the ground contact 11. In the electrical connector of the present invention, since the extension portion 13b for holding the housing 13a is provided in a direction intersecting the extending direction of the signal connection portion 12b, it is possible to adopt a configuration in which the opening of the grounding connection portion 11b of the grounding contact 11 of the housing 13a is not formed in the extending direction of the signal connection portion 12b. Therefore, in the grounding connection portion 11b of the grounding contact 11, the opening in the extending direction of the signal connection portion 12b can be miniaturized or closed. Accordingly, this results in a configuration where signals from the signal connection portion 12b are less likely to leak out (a configuration that is less prone to noise generation), thereby improving the EMI characteristics of the electrical connector.
[0067] The socket connector 10 is provided with a plurality of extension portions 13b. With this configuration, the extension portions 13b engage with multiple portions of the grounding connection portion 11b, thereby more properly retaining the housing 13a.
[0068] In the socket connector 10, the extension portions 13b are arranged in pairs at positions symmetrical with respect to the center line of the connecting center conductor 12a and the signal connection portion 12b when viewed from the mating direction (Z direction) with the plug connector 100. This allows for a more balanced holding of the housing 13a from both sides, thus ensuring proper holding of the housing 13a.
[0069] In the socket connector 10, the extension portion 13b is provided in a direction orthogonal to the extending direction of the signal connection portion 12b. Therefore, the opening 11c for holding the housing 13a is formed at a position sufficiently separated from the extending direction of the signal connection portion 12b. This configuration makes it less likely for signals from the signal connection portion 12b to leak outwards from the opening 11c for holding the housing 13a, further improving the EMI characteristics of the socket connector 10.
[0070] In the socket connector 10, an opening 11c is formed in the grounding connection portion 11b in the extending direction of the extension portion 13b, and the extension portion 13b is provided to be inserted into the opening 11c. This configuration allows the extension portion 13b to pass properly toward the outside of the fitting portion 11a while closing the opening 11c used to hold the housing 13a, thus enabling more proper holding of the housing 13a.
[0071] In the jack connector 10, the grounding connection portion 11b has a narrow and wide portion 11d outside the mating portion 11a, which narrows the width of the opening 11c. This configuration makes it less likely for signals from the signal connection portion 12b to leak outwards from the opening 11c used to hold the housing 13a, further improving the EMI characteristics of the jack connector 10. Furthermore, the extension portion 13b also engages in the narrow and wide portion 11d of the first contact, thereby more properly holding the housing 13a.
[0072] In the socket connector 10, the housing 13a is provided only in the area within the mating portion 11a in the extending direction of the signal connection portion 12b. Therefore, in order to keep resin within the mating portion 11a and prevent it from flowing outside, the opening in the extending direction of the signal connection portion 12b can be made smaller or closed at the end of the housing 13a other than the extension portion 13b. This configuration makes it difficult for signals from the signal connection portion 12b to leak outwards, further improving the EMI characteristics of the socket connector 10.
[0073] [Example of variation]
[0074] While this embodiment has been described above, the present invention is not limited to the described embodiment. For example, although an example with multiple extension portions 13b has been described, only one extension portion may be provided. Furthermore, the narrow and wide portion 11d is not an essential configuration.
[0075] Figure 10 (a)~ Figure 10 (c) is a diagram showing a variation of the socket connector 210. For example... Figure 10 (a)~ Figure 10 As shown in (c), the grounding connection portion 11b of the socket connector 210 may not be formed as shown in the diagram. Figure 3 (a) shows the opening 11e in the extending direction of the signal connection portion 12b. In this case, the grounding connection portion 11b is configured to be closed in the X direction of the signal connection portion 12b. As a result, the signal from the signal connection portion 12b is less likely to leak outward, and the EMI characteristics of the jack connector 210 can be further improved.
[0076] Figure 11 (a)~ Figure 11(c) is a diagram showing a variation of the socket connector 310. For example... Figure 11 (a)~ Figure 11 As shown in (c), in a configuration where the paired extension portions 13b, 13b are positioned symmetrically with respect to the centerline of the connecting center conductor 12a and the signal connection portion 12b when viewed from the Z direction, the pair of extension portions 13b, 13b can be positioned in a direction not orthogonal to the extending direction (X direction) of the signal connection portion 12b. Even in this case, the housing 13a is held more evenly from both sides, thereby properly holding the housing 13a. Furthermore, rather than in a direction orthogonal to the extending direction of the signal connection portion 12b, the extension portions 13b, 13b of the socket connector 310 can also be formed in a direction opposite to the extending direction of the signal connection portion 12b, with the center conductor 12a as a reference. Thus, the openings 11c, 11c used to hold the housing 13a are formed in a position sufficiently separated from the extending direction of the signal connection portion 12b. Accordingly, the signal from the signal connection portion 12b is less likely to leak out through the opening used to hold the housing, which further improves the EMI characteristics of the jack connector 310.
[0077] Figure 12 (a)~ Figure 12 (c) is a diagram showing a variation of the socket connector 410. For example... Figure 12 (a)~ Figure 12 As shown in (c), the housing 13a may be disposed in a region closer to the center conductor 12a than the top of the signal connection portion 12b in the extending direction of the signal connection portion 12b when viewed from a plane orthogonal to the extending direction of the signal connection portion 12b. Alternatively, the housing 13a may cover the surface of the signal connection portion 12b when viewed from the mating side with the plug connector 100, and be exposed to the outside when viewed from the opposite side of the mating side with the plug connector 100.
[0078] [Symbol Explanation]
[0079] 10, 210, 310, 410: Socket connectors (electrical connectors)
[0080] 11: Grounding contact (first contact)
[0081] 11a: Fitting part
[0082] 11b: Grounding connection part
[0083] 11c: Opening
[0084] 11d: Narrow and wide section
[0085] 11e: Opening
[0086] 12: Signal contact (2nd contact)
[0087] 12a: Center conductor
[0088] 12b: Signal connection part
[0089] 13a: Outer shell
[0090] 13b: Extension Department
[0091] 100: Plug connector (opposite connector)
[0092] 101: Grounding contact
[0093] 102: Signal contact
[0094] 200: Substrate
[0095] 201: Signal terminal part.
Claims
1. An electrical connector, mounted on a substrate, and comprising: The first contact has: a cylindrical fitting portion that fits into the grounding contact of the other connector; and a grounding connection portion that connects to the substrate; The second contact is configured such that it is surrounded by the mating portion and is electrically connected to the signal contact of the other connector. The outer casing holds the first contact and the second contact in an insulated state; and The extension portion secures the outer casing to the first contact point; and The second contact has: a center conductor that contacts the signal contact of the other connector; and a signal connection portion that extends along the substrate from the center conductor and is connected to a terminal portion of the substrate; and The extension portion extends from the housing in a direction intersecting the extension direction of the signal connection portion, and engages with the grounding connection portion outside the fitting portion, thereby fixing the housing to the first contact point; An opening is formed in the grounding connection portion in the extending direction of the extension portion. The extension portion is provided in a manner that it is embedded in the opening.
2. The electrical connector according to claim 1, wherein a plurality of the extension portions are provided.
3. The electrical connector according to claim 2, wherein the extension portions are arranged in pairs at positions symmetrical with respect to the center line connecting the center conductor and the signal connection portion when viewed from the mating direction with the other connector.
4. The electrical connector according to claim 3, wherein the extension portion is disposed in a direction orthogonal to the extension direction of the signal connection portion.
5. The electrical connector according to claim 1, wherein the grounding connection portion outside the mating portion has a narrow width portion provided in such a way as to narrow the width of the opening.
6. The electrical connector according to any one of claims 1 to 5, wherein the housing is disposed only in the region within the mating portion in the extending direction of the signal connection portion.
7. The electrical connector according to any one of claims 1 to 5, wherein the grounding connection portion does not have an opening formed in the extending direction of the signal connection portion.