Substrate connector

Abstract

A substrate connector includes inner terminals, an inner housing, outer terminals, an outer housing, and a fixing member. The outer terminals include a barrel portion and a connecting portion electrically connected to a circuit substrate. The connecting portion is connected to the barrel portion via a step portion, and is disposed at a radially outer side of the barrel portion. The outer housing includes a rotation preventing portion that suppresses rotation of the outer terminals by abutting against the connecting portion of the outer terminals.

Description

Technical Field

[0001] This invention relates to a substrate connector. Background Technology

[0002] For example, in the prior art, a substrate connector mounted on a circuit board is known. Patent document JP2013-37928A discloses a technology related to a substrate connector, which includes: an inner conductor terminal as a terminal fitting; a dielectric including a terminal holding portion, in which the inner conductor terminal is press-fitted; and an outer conductor terminal configured to cover the dielectric in which the inner conductor terminal is mounted. The substrate connector is configured such that the inner conductor terminal and the outer conductor terminal are arranged close to each other. According to this configuration, the size of the inner conductor terminal is reduced, and the inner conductor terminal and the outer conductor terminal are arranged close to each other. Therefore, the size of the substrate connector can be reduced. Summary of the Invention

[0003] In such a substrate connector, when the distance between the connection part of the outer conductor terminal (outer terminal) and the connection part of the inner conductor terminal (inner terminal) decreases, the impedance cannot be adjusted, and there is a possibility that the transmission performance becomes unstable.

[0004] The purpose of this invention is to provide a substrate connector that can stabilize transmission performance by adjusting the distance between the connection portion of the outer terminal and the connection portion of the inner terminal.

[0005] The substrate connector according to the present invention includes: an inner terminal electrically connected to a circuit board and in contact with a mating inner terminal of a mating connector; an inner housing including a receiving portion for accommodating the inner terminal; an outer terminal covering a portion of the inner terminal, electrically connected to the circuit board, and in contact with a mating outer terminal of the mating connector; a housing including a receiving hole for accommodating the outer terminal; and a fixing member for fixing the housing to the circuit board. The outer terminal includes a cylindrical portion and a connecting portion electrically connected to the circuit board. The connecting portion is connected to the cylindrical portion via a stepped portion and is disposed radially outward of the cylindrical portion. The housing includes a rotation-prevention portion that suppresses rotation of the outer terminal by abutting against the connecting portion of the outer terminal.

[0006] Based on the above structure, a substrate connector can be provided that can stabilize transmission performance by adjusting the distance between the connecting portion of the outer terminal and the connecting portion of the inner terminal. Attached Figure Description

[0007] Figure 1 This is a perspective view showing the state in which the substrate connector according to this embodiment is mounted on the circuit board.

[0008] Figure 2 This is a schematic plan view of the board connector as seen from the back surface side of the circuit board.

[0009] Figure 3 This is a 3D view of the substrate connector.

[0010] Figure 4 This is an exploded perspective view of the substrate connector.

[0011] Figure 5 This is a rear view of the substrate connector, viewed from the rear side.

[0012] Figure 6 It is along Figure 5 The cross-sectional view taken from line AA.

[0013] Figure 7 This is a side view of the inner terminal.

[0014] Figure 8 This is a front view of the inner casing, viewed from the front side.

[0015] Figure 9 It is along Figure 8 A cross-sectional view taken from the BB line.

[0016] Figure 10 This is a front view of the outer terminal, viewed from the front side.

[0017] Figure 11 It is along Figure 10 A cross-sectional view taken from the CC line.

[0018] Figure 12 This is a front view of the outer casing, viewed from the front side.

[0019] Figure 13 This is a rear view of the outer casing, viewed from the rear side.

[0020] Figure 14 This is a front view of the stud, viewed from the front side. Detailed Implementation

[0021] Referring to the accompanying drawings, the substrate connector according to this embodiment is described in detail below. Note that for ease of explanation, the dimensions in the drawings are exaggerated and may differ from the actual scale.

[0022] like Figure 1 As shown, the substrate connector 1 according to this embodiment is a vertical male connector for high-frequency use, also known as a printed circuit board (PCB) connector, and can be mated to a mating connector (female connector) omitted in the figure.

[0023] like Figures 1 to 6As shown, the substrate connector 1 includes an inner terminal 10, an inner housing 20, an outer terminal 30, an outer housing 40, and a fixing component (bolt 50). The substrate connector 1 is mounted on the circuit board 2 and used (see...). Figure 1 In this embodiment, the side of the housing 40 with opening 40a is referred to as the front side FR, and the side with circuit board 2 is referred to as the rear side RR.

[0024] Figure 7 The inner terminal 10 shown is electrically connected to the circuit board 2 and contacts the mating inner terminal (omitted in the figure) of the mating connector. The inner terminal 10 is also referred to as the inner conductor. In this embodiment, one inner terminal 10 is configured, but multiple inner terminals may also be configured.

[0025] like Figure 7 As shown, the inner terminal 10 is formed in the shape of a rod of metal or the like, and includes a main body 11 and a connecting portion 12. The end portion 13 of the main body 11 contacts and is in communication with the mating inner terminal (omitted in the figure). A press-fit protrusion 14 is formed at the main body 11. A plurality of (four in this embodiment) press-fit protrusions 14 are formed at the main body 11 and are configured such that the inner terminal 10 is press-fitted into the receiving portion 21 of the inner housing 20. The connecting portion 12 extends from the rear end of the main body 11 toward the rear side RR. The connecting portion 12 contacts and is in communication with the circuit board 2. The connecting portion 12 is inserted into a through hole formed in the circuit board 2 and is fixed thereto by solder (see Figure 2 ).

[0026] Figure 8 and Figure 9 The inner housing 20 shown includes a receiving portion 21 for accommodating the inner terminal 10. A receiving portion 21 is provided.

[0027] like Figure 8 and Figure 9 As shown, the inner housing 20 is formed into a cylindrical shape made of synthetic resin or the like, and includes a receiving portion 21 and a cylindrical protrusion 22. The receiving portion 21 receives the inner terminal 10. The cylindrical protrusion 22 is formed on the outer periphery of the receiving portion 21 and is configured such that the inner housing 20 is press-fitted and received within the cylindrical outer terminal 30. In this embodiment, a plurality of cylindrical protrusions 22 (four in this embodiment) are provided at intervals in the circumferential direction.

[0028] Figure 10 and Figure 11 The outer terminal 30 shown covers a portion of the inner terminal 10, is electrically connected to the circuit board 2, and contacts the mating outer terminal (omitted in the figure) of the mating connector. The outer terminal 30 is also referred to as the outer conductor. An outer terminal 30 is configured.

[0029] like Figure 10 and Figure 11As shown, the outer terminal 30 is formed of metal or the like and includes a cylindrical portion 31 and a connecting portion 32. The cylindrical portion 31 is formed in a cylindrical shape and abuts against the cylindrical protrusion 44 of the outer casing 40. The cylindrical portion 31 is the part that contacts the mating outer terminal (omitted in the figure) and is the part that accommodates the inner casing 20. A plurality of locking portions 33 are formed in the cylindrical portion 31 by cutting and lifting. The locking portions 33 lock the inner casing 20. The connecting portion 32 contacts and is conductive to the circuit board 2. The connecting portion 32 is connected to the cylindrical portion 31 via a stepped portion 34 and is disposed on the radially outer side of the cylindrical portion 31 (see figure). Figure 11 The connecting part 32 is inserted into a through hole formed in the circuit board 2 and fixed thereto by solder (see...). Figure 2 In this embodiment, a plurality of (four in this embodiment) connecting portions 32 are formed at intervals in the circumferential direction.

[0030] Figure 12 and Figure 13 The housing 40 shown includes a receiving hole 43 for receiving the external terminal 30.

[0031] like Figure 12 and Figure 13 As shown, the housing 40 includes a cylindrical body 41 formed of synthetic resin or the like. A locking portion 42 for locking mating connectors (omitted in the illustration) is formed at the upper part of the body 41. A receiving hole 43 for assembling the outer terminal 30 is formed inside the body 41, and a cylindrical protrusion 44 for the outer terminal 30 to abut against is formed on the inner periphery of the receiving hole 43. Furthermore, a rotation-preventing portion 45 is formed at the rear RR end of the body 41, which functions as a positioning and anti-rotation part relative to the connecting portion 32 of the outer terminal 30. The rotation-preventing portion 45 includes a plurality of ribs 46 spaced apart in the circumferential direction of the housing 40, and the connecting portion 32 of the outer terminal 30 is disposed between these ribs 46. Additionally, retaining portions 47 for retaining studs 50 are formed on the left and right sides of the body 41, respectively. The retaining portion 47 includes a slit 48 extending along the insertion direction of the stud 50.

[0032] Figure 14 The bolt 50 shown secures the outer casing 40 to the circuit board 2.

[0033] like Figure 14As shown, the stud 50 includes a stud body 51, which is formed into a plate shape made of metal or the like. Press-fit protrusions 52 are formed on the left and right sides of the stud body 51, respectively. The press-fit protrusions 52 are configured to press-fit and assemble the stud 50 into the retaining portion 47 (slit 48) of the housing 40. A connecting portion 53 is formed on the stud body 51, extending downward from the lower end surface of the stud body 51. The connecting portion 53 contacts and communicates with the circuit board 2. The connecting portion 53 is inserted into a through hole formed in the circuit board 2 and fixed thereto by solder (see...). Figure 2 ).

[0034] When the distance between the outer conductor (outer terminal 30) and the inner conductor (inner terminal 10) in the circuit board 2 is excessively reduced, the impedance is affected, and the transmission performance may be unstable. In this embodiment, to stabilize the transmission performance, a stepped portion 34 is formed between the cylindrical portion 31 and the connecting portion 32 of the outer conductor (outer terminal 30), and the distance between the connecting portion 32 of the outer conductor (outer terminal 30) and the connecting portion 12 of the inner conductor (inner terminal 10) is adjusted (see...). Figure 6 ).

[0035] Furthermore, when viewed from the back surface of the circuit board 2, the connection portion 32 of the external terminal 30 is arranged at equal intervals P (90 degrees in this embodiment) with respect to the signal line 3 of the circuit board 2, avoiding positions at 0 degrees and 180 degrees (see...). Figure 2 By configuring the connection portion 32 of the external terminal 30 in this manner, overlap between the connection portion 32 of the external terminal 30 and the signal line 3 of the circuit board 2 is prevented. For example, this is because the arrangement of the signal line 3 may become complicated when the connection portion 32 of the external terminal 30 is positioned at 0 degrees or 180 degrees. In this embodiment, to simplify the arrangement of the signal line 3 of the circuit board 2, the connection portion 32 of the external terminal 30 is configured as follows: Figure 2 The configuration shown.

[0036] Furthermore, when the substrate connector 1 is connected to the circuit board 2, if the connection portion 32 for positioning the outer terminal 30 is not present, the outer terminal 30 may rotate inside the housing 40. Therefore, in this embodiment, a rotation prevention portion 45 (rib 46) is formed at the housing 40 to position the outer terminal 30 and restrict its rotation (see...). Figure 5 and Figure 6 ).

[0037] As described above, the substrate connector 1 according to this embodiment includes: an inner terminal 10 electrically connected to the circuit board 2 and in contact with a mating inner terminal of a mating connector; and an inner housing 20 including a receiving portion 2 for receiving the inner terminal 10. The substrate connector 1 includes: an outer terminal 30 covering a portion of the inner terminal 10, electrically connected to the circuit board 2 and in contact with a mating outer terminal of a mating connector; and a housing 40 including a receiving hole 43 for receiving the outer terminal 30. The substrate connector 1 includes a fixing member (stud 50) for fixing the housing 40 to the circuit board 2. The outer terminal 30 includes a cylindrical portion 31 and a connecting portion 32 electrically connected to the circuit board 2, and the connecting portion 32 is connected to the cylindrical portion 31 via a stepped portion 34 and disposed radially outside the cylindrical portion 31. The housing 40 includes a rotation prevention portion 45 that suppresses rotation of the outer terminal 30 by abutting against the connecting portion 32 of the outer terminal 30.

[0038] The connecting portion 32 of the outer terminal 30 is connected to the cylindrical portion 31 via the stepped portion 34 and is disposed radially outside the cylindrical portion 31. In this case, the distance between the outer terminal 30 and the inner terminal 10 can be adjusted to stabilize the transmission performance. Furthermore, the housing 40 includes a rotation prevention portion 45, which suppresses the rotation of the outer terminal 30 by abutting against the connecting portion 32 of the outer terminal 30. In this case, it is convenient to assemble the outer terminal 30 to the circuit board 2 and the assembly operability can be improved.

[0039] According to the above embodiment, a substrate connector 1 can be provided, and by adjusting the distance between the connecting portion 32 of the outer terminal 30 and the connecting portion 12 of the inner terminal 10, the substrate connector 1 can achieve stable transmission performance.

[0040] In the substrate connector 1, the rotation prevention part 45 includes a plurality of ribs 46 spaced apart in the circumferential direction of the housing 40.

[0041] Therefore, the rib 46 can position and prevent rotation of the connection portion 32 of the external terminal 30, facilitate the assembly of the external terminal 30 to the circuit board 2, and improve assembly operability.

[0042] While specific embodiments have been described, these embodiments are presented by way of example only and are not intended to limit the scope of the invention. In fact, the novel embodiments described herein can be implemented in various other forms; furthermore, various omissions, substitutions, and modifications in the embodiments described herein can be made without departing from the spirit of the invention. The appended claims and their equivalents are intended to cover such forms or modifications that fall within the scope and spirit of the invention.

Claims

1. A substrate connector, comprising: The inner terminal is electrically connected to the circuit board and contacts the mating inner terminal of the mating connector; An inner housing, the inner housing including a receiving portion for accommodating the inner terminals; An outer terminal, which covers a portion of the inner terminal, is electrically connected to the circuit board and contacts the mating outer terminal of the mating connector; The housing includes a receiving hole for receiving the outer terminal; as well as A fixing component secures the outer casing to the circuit board, wherein... The external terminal includes a cylindrical portion and a connection portion that is electrically connected to the circuit board. The connecting portion is connected to the cylindrical portion via a stepped portion and is disposed on the radially outer side of the cylindrical portion, and The housing includes a rotation prevention part that suppresses rotation of the external terminal by abutting against the connection part of the external terminal.

2. The substrate connector according to claim 1, wherein, The rotation prevention part includes a plurality of ribs spaced apart in the circumferential direction of the outer casing.

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