Substrate connector

Abstract

To achieve both of impedance matching and a fitting prevention of another member into a gate-shaped part.SOLUTION: A substrate connector A comprises: an inner conductor 10 to be connected to a circuit substrate P; a dielectric body 20 housing the inner conductor 10; and an outer conductor 30 surrounding the dielectric body 20. The outer conductor 30 includes a hood part 31 surrounding a front-end part of the inner conductor 10; and a gate-shaped part 33 that is arranged over an area rearward of the inner conductor 10 and the dielectric body 20. In the gate-shaped part 33, a rear surface and a lower surface facing the circuit substrate P are open. In an inner surface of at least one side wall part 36 of left and right side wall parts 36 constituting the gate-shaped part 33, an upper rib 40 and a lower rib 41 are formed. A minimum opposite interval W3 of a pair of the side wall parts 36 including the upper rib 40 and the lower rib 41 is smaller than a width dimension W2 of the hood part 31.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to a board connector. [Background technology]

[0002] Patent Document 1 discloses a board connector having an outer conductor. The outer conductor has a gate-shaped dielectric enclosure with openings at the bottom and rear, and a tubular portion extending forward from the dielectric enclosure. The dielectric enclosure is fixed to a circuit board. A dielectric holding an inner conductor is housed in the dielectric enclosure. The board connection portion of the inner conductor is exposed to the outside of the dielectric behind the dielectric, and is disposed within the dielectric enclosure. The dielectric enclosure has a gate-shaped portion located behind the dielectric and the inner conductor. The gate-shaped portion has the function of shielding noise from the inner conductor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-017423 A Summary of the Invention [Problem to be solved by the invention]

[0004] Since the gate-shaped portion is a metal part, its impedance may be lower than other areas. One possible solution to this problem is to match the impedance by widening the gap between the pair of side walls that make up the gate-shaped portion. However, if the gap between the side walls of the gate-shaped portion is widened and becomes larger than the width of the tubular portion of the outer conductor, there is a risk that the tubular portion of one outer conductor may become stuck in the gate-shaped portion of another outer conductor, for example, when multiple outer conductors are transported in a bagged state.

[0005] The board connector of the present disclosure was completed based on the above circumstances, and aims to achieve both impedance matching and prevention of other components becoming stuck in the gate-shaped portion. [Means for solving the problem]

[0006] The board connector of the present disclosure comprises: an inner conductor connected to a circuit board; a dielectric material that accommodates the inner conductor; an outer conductor surrounding the dielectric; The outer conductor is a hood portion surrounding a front end portion of the inner conductor; a gate-shaped portion disposed over a range behind the inner conductor and the dielectric, the gate-shaped portion has an opening at a rear surface and a bottom surface facing the circuit board, A rib is formed on an inner surface of at least one of the left and right side wall portions constituting the gate-shaped portion, The minimum opposing distance between the pair of side wall portions including the ribs is smaller than the width dimension of the hood portion. Effect of the Invention

[0007] According to the present disclosure, it is possible to achieve both impedance matching and prevention of other components from becoming stuck in the gate portion. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a board connector according to a first embodiment, viewed obliquely from below and from the front. [Diagram 2] FIG. 2 is a perspective view of the board connector shown in FIG. 1 as viewed obliquely from below and behind. [Diagram 3] 3 is an exploded perspective view of the board connector shown in FIG. 1, as viewed obliquely from below and behind. [Figure 4] 4 is a side cross-sectional view of the board connector shown in FIG. [Diagram 5] 5 is a plan sectional view of the board connector shown in FIG. [Figure 6] 6 is a rear view of the board connector shown in FIG. 1. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described. Any combination of the following embodiments without causing any contradiction is also included in the embodiments for carrying out the present invention. The board connector of the present disclosure comprises: (1) An electrical connector includes an inner conductor connected to a circuit board, a dielectric that houses the inner conductor, and an outer conductor that surrounds the dielectric, the outer conductor having a hood that surrounds the front end of the inner conductor and a gate-shaped portion disposed over a range behind the inner conductor and the dielectric, the gate-shaped portion having an opening at a rear surface and a lower surface that faces the circuit board, a rib is formed on the inner surface of at least one of the side walls of the left and right side walls that constitute the gate-shaped portion, and the minimum opposing distance between the pair of side walls including the rib is smaller than the width dimension of the hood portion. According to the configuration of the present disclosure, the minimum opposing distance between the pair of side walls including the rib is smaller than the width dimension of the hood portion, so that the hood portion can be prevented from fitting into the gate-shaped portion. The formation of the rib can increase the maximum distance between the pair of side walls, so that impedance matching can be achieved by suppressing a decrease in impedance.

[0010] (2) In (1), it is preferable that a housing space that opens rearward and houses the dielectric is formed in a region of the outer conductor in front of the gate-shaped portion, and the rib is formed with a guide surface that guides the dielectric during the process of inserting the dielectric into the housing space. This configuration improves the workability when inserting the dielectric into the housing space.

[0011] (3) In (1) or (2), it is preferable that the board connection portion of the inner conductor connected to the circuit board is exposed on the rear surface of the dielectric in a vertically elongated state, and the rib is disposed only at a height close to the upper end or lower end of the board connection portion. With this configuration, it is possible to suppress impedance mismatch caused by the formation of the rib. In other words, with respect to the position of the rib in the vertical direction, the height close to the upper end or lower end of the board connection portion is a height at which the rib is unlikely to cause a decrease in impedance near the upper end or lower end of the board connection portion.

[0012] (4) In (1) or (2), it is preferable that the board connection portion of the inner conductor connected to the circuit board is exposed on the rear surface of the dielectric in a vertically elongated state, a wide portion having a width greater than that of both upper and lower ends is formed in an intermediate region between the upper and lower ends of the board connection portion, and the rib is disposed at a different height from the wide portion in the vertical direction. With this configuration, it is possible to suppress impedance mismatch caused by the formation of the rib.

[0013] [Details of the embodiment of the present disclosure] [Example 1] A board connector A according to a first embodiment of the present disclosure will be described with reference to Figs. 1 to 6. The present invention is not limited to these examples, but is defined by the claims, and includes all modifications within the meaning and scope equivalent to the claims. In this first embodiment, the F direction in Figs. 1 to 5 is defined as the front with respect to the front-rear direction. The H direction in Figs. 1 to 4 and 6 is defined as the up-down direction. The R direction in Figs. 1 to 3, 5 and 6 is defined as the right-hand direction. The left-right direction and the width direction are used synonymously.

[0014] The board connector A of the present embodiment 1 is a connector that has a shielding function and is attached to a circuit board P. As shown in FIG. 3, the board connector A is configured by assembling an inner conductor 10, a dielectric 20, and an outer conductor 30. The inner conductor 10 is a single part formed by bending a long and narrow metal plate material. As shown in FIGS. 3 and 4, the inner conductor 10 has a terminal connection portion 11 that extends in the front-rear direction, and a board connection portion 12 that extends diagonally downward and rearward in a cantilever shape from the rear end of the terminal connection portion 11. The board connection portion 12 has an upper end narrow portion 13 that is continuous with the terminal connection portion 11, a lower end narrow portion 14 that is fixed to the circuit board P, and a wide portion 15 that connects the upper end narrow portion 13 and the lower end narrow portion 14. The width dimension of the wide portion 15 is larger than the upper end narrow portion 13 and the lower end narrow portion 14.

[0015] The dielectric 20 is a single component made of synthetic resin and has a front housing portion 21 and a rear housing portion 22. As shown in Figs. 4 and 5, a pair of left and right press-fit holes 23 penetrating the front housing portion 21 in the front-rear direction are formed in the front housing portion 21. The rear housing portion 22 is a portion protruding rearward from the rear end portion of the front housing portion 21. The vertical dimension of the rear housing portion 22 is larger than the vertical dimension of the front housing portion 21. The width dimension (horizontal dimension) of the rear housing portion 22 is larger than the width dimension of the front housing portion 21. A pair of left and right housing grooves 24 open rearward and downward are formed in the rear housing portion 22. The rear ends of the press-fit holes 23 open at the upper ends of the housing grooves 24.

[0016] A pair of left and right inner conductors 10 are attached to the dielectric 20. During attachment, the terminal connection portion 11 is press-fitted into the press-fit hole 23 from the rear of the dielectric 20. When the inner conductor 10 is attached to the dielectric 20, the front end of the terminal connection portion 11 protrudes forward from the front accommodating portion 21, and the board connection portion 12 is accommodated in the accommodating groove 24. The lower end of the board connection portion 12 protrudes downward below the lower surface of the dielectric 20 (rear accommodating portion 22).

[0017] The outer conductor 30 is a single metal part formed by die casting. As shown in Figs. 1, 2, 4 and 5, the outer conductor 30 has a hood portion 31, a flange portion 32 and a gate-shaped portion 33. The shape of the hood portion 31 in a front view of the outer conductor 30 from the front is a rectangle with its long sides facing in the left-right direction. An accommodation space 34 for accommodating the front accommodation portion 21 of the dielectric 20 is formed inside the hood portion 31. The flange portion 32 has a shape that protrudes in the up-down and left-right directions from the rear end portion of the outer circumferential surface of the hood portion 31.

[0018] The gate-shaped portion 33 protrudes rearward from the rear surface of the flange portion 32. The gate-shaped portion 33 has an upper wall portion 35, a pair of side wall portions 36, a pair of upper ribs 40, and a pair of lower ribs 41. The upper wall portion 35 extends horizontally rearward from the rear surface of the flange portion 32 with its thickness direction facing the up-down direction. The left and right side wall portions 36 extend rearward from the rear surface of the flange portion 32 with its thickness direction facing the left-right direction. The upper edges of the side wall portions 36 are connected to the left and right side edges of the upper wall portion 35 at right angles. A pair of legs 37 spaced apart in the front-rear direction are formed on the lower end surfaces of the side wall portions 36. The outer conductor 30 is attached to the circuit board P so as to be conductively connected thereto by fitting the legs 37 into fitting holes (not shown) of the circuit board P.

[0019] An open space 38 that is open to the rear and downward of the gate-shaped portion 33 is formed inside the gate-shaped portion 33. The vertical dimension of the open space 38 is larger than the vertical dimension of the storage space 34. The width dimension of the open space 38 is larger than the width dimension of the storage space 34. As shown in Figures 3 to 5, due to the difference in size between the open space 38 and the storage space 34, a rectangular stopper 39 that surrounds the entire opening of the storage space 34 is formed on the rear end surface (front end surface) of the open space 38.

[0020] The dielectric 20 is attached to the outer conductor 30. When attaching, the dielectric 20 is inserted into the open space 38 from the rear of the outer conductor 30, the front accommodating portion 21 is fitted into the accommodating space 34, and the rear accommodating portion 22 is disposed in the open space 38. The front outer peripheral edge of the rear accommodating portion 22 is abutted against a stopper 39, thereby positioning the dielectric 20 in the front-rear direction relative to the outer conductor 30. With the dielectric 20 attached to the outer conductor 30, the front end of the terminal connection portion 11 is disposed within the hood portion 31 (within the accommodating space 34). The lower end of the board connection portion 12 protrudes downward beyond the lower surface of the gate-shaped portion 33.

[0021] The maximum opposing distance W1 between the inner faces of the side wall portions 36 (maximum width dimension of the open space 38) is equal to or slightly larger than the width dimension W2 of the hood portion 31 (the distance between the left and right outer faces of the hood portion 31). Therefore, there is a concern that the hood portion 31 may become fitted into the open space 38 when a large number of outer conductors 30 are transported in a bagged or boxed state. As a countermeasure to this, a pair of upper ribs 40 and a pair of lower ribs 41 are formed on the inner faces of the left and right side wall portions 36, i.e., on the inner wall faces where the side wall portions 36 face each other.

[0022] As shown in Fig. 6, in a rear view of the gate-shaped portion 33 seen from the rear, each of the ribs 40, 41 has a rectangular shape. One upper rib 40 and one lower rib 41 are formed on each side wall portion 36. These ribs 40, 41 extend linearly in the front-rear direction. As shown in Fig. 5, the range in which the ribs 40, 41 are formed in the front-rear direction is the range from the front end (stopper 39) of the open space 38 to the rear end of the open space 38 (gate-shaped portion 33).

[0023] As shown in Figs. 2 to 4, the upper rib 40 is disposed in the center of the open space 38 in the height direction. In other words, the upper rib 40 is disposed within the formation range of the storage space 34 in the up-down direction. The lower rib 41 is disposed lower than the upper rib 40. The lower rib 41 is disposed at the lower end of the open space 38 so as to follow the lower edge of the side wall portion 36. The pair of upper ribs 40 are disposed so as to face each other in the left-right direction at the same height. The pair of lower ribs 41 are disposed so as to face each other in the left-right direction at the same height. The mutually facing inner surfaces of the pair of upper ribs 40 and the mutually facing inner surfaces of the pair of lower ribs 41 are defined as opposing surfaces 42.

[0024] The opposing distance between the opposing surfaces 42 of the pair of upper ribs 40 and the opposing distance between the opposing surfaces 42 of the pair of lower ribs 41 are set to the same dimension. This opposing distance is defined as the minimum opposing distance W3 between the left and right side wall portions 36. The minimum opposing distance W3 is set to be smaller than the width dimension W2 of the hood portion 31. The minimum opposing distance W3 is set to be the same as or slightly larger than the width dimension of the rear accommodating portion 22 of the dielectric 20 (the distance between the left and right outer side surfaces of the rear accommodating portion 22).

[0025] A guide surface 43 is formed at the rear end of the opposing surface 42 of each of the ribs 40, 41, inclined with respect to the length direction of the ribs 40, 41 in a plan view of the outer conductor 30 viewed from above. The guide surfaces 43 opposing each other in the left-right direction are inclined in a direction that widens the opposing distance toward the rear. If the dielectric 20 is misaligned in the left-right direction with respect to the outer conductor 30 when the dielectric 20 is assembled to the outer conductor 30, the outer surface of the front accommodating portion 21 and the outer surface of the rear accommodating portion 22 slide against the guide surface 43, thereby correcting the misalignment of the dielectric 20 with respect to the outer conductor 30. As a result, the front accommodating portion 21 is inserted into the accommodating space 34 without being caught by the stopper 39.

[0026] The board connector A of the first embodiment includes an inner conductor 10 connected to a circuit board P, a dielectric 20 that houses the inner conductor 10, and an outer conductor 30 that surrounds the dielectric 20. The outer conductor 30 has a hood portion 31 and a gate-shaped portion 33. The hood portion 31 surrounds the front end of the terminal connection portion 11 of the inner conductor 10. The gate-shaped portion 33 is disposed over a range behind the inner conductor 10 and the dielectric 20. The gate-shaped portion 33 has an opening at its rear surface and at its lower surface that faces the circuit board P. A pair of upper ribs 40 and a pair of lower ribs 41 are formed on the inner surfaces of the left and right side wall portions 36 that constitute the gate-shaped portion 33. The minimum opposing distance W3 between the pair of side wall portions 36 including the upper rib 40 and the lower rib 41 is smaller than the width dimension W2 of the hood portion 31.

[0027] According to this configuration, the minimum opposing distance W3 of the pair of side wall portions 36 including the upper rib 40 and the lower rib 41 is smaller than the width dimension W2 of the hood portion 31, so that it is possible to prevent the hood portion 31 from fitting into the gate-shaped portion 33. By forming the upper rib 40 and the lower rib 41, it is possible to increase the maximum opposing distance W1 of the pair of side wall portions 36. This makes it possible to prevent a decrease in impedance, thereby achieving impedance matching.

[0028] An accommodating space 34 for accommodating the dielectric 20 is formed in a region in front of the gate-shaped portion 33 in the outer conductor 30. The accommodating space 34 opens rearward. The upper rib 40 and the lower rib 41 are formed with guide surfaces 43 for guiding the dielectric 20 in the process of inserting the dielectric 20 into the accommodating space 34. This configuration improves the workability when inserting the dielectric 20 into the accommodating space 34.

[0029] Of the inner conductor 10, the board connection portion 12 connected to the circuit board P is exposed in an elongated shape extending vertically in the accommodating groove 24 on the rear surface of the dielectric 20. In a rear view of the outer conductor 30 seen from behind, the upper rib 40 and the lower rib 41 are disposed only at a height close to the upper end narrow portion 13 (upper end) and the lower end narrow portion 14 (lower end) of the board connection portion 12. With this configuration, it is possible to suppress impedance mismatch caused by the formation of the upper rib 40 and the lower rib 41.

[0030] Of the inner conductor 10, the board connection portion 12 connected to the circuit board P is exposed in an elongated shape extending vertically in the housing groove 24 on the rear surface of the dielectric 20. In the board connection portion 12, a wide portion 15 having a width larger than both the upper and lower ends (the upper narrow portion 13 and the lower narrow portion 14) is formed in an intermediate region between both the upper and lower ends (the upper narrow portion 13 and the lower narrow portion 14) of the board connection portion 12. Of the upper rib 40 and the lower rib 41, the lower rib 41 is disposed at a different height in the vertical direction from the wide portion 15. With this configuration, it is possible to suppress impedance mismatch caused by the formation of the lower rib 41.

[0031] [Other Examples] The present invention is not limited to the embodiments described above and shown in the drawings, but is indicated by the claims. The present invention includes the equivalent meaning of the claims and all modifications within the scope of the claims, including the following embodiments. The outer conductor is not limited to one made by die casting, but may be one formed by forging or casting, or may be one formed by bending a metal plate. The rib may have no guide surface. The ribs may be located at a height between the upper and lower ends of the board connection portion. The rib may be disposed in a region above the upper end of the board connection portion. The ribs may be located at the same height as the wide portion. The number of ribs formed on one side wall portion may be one, or three or more. The rib may be formed on only one of the left and right side wall portions. The board connection portion may have a shape in which the wide portion is not formed. [Explanation of symbols]

[0032] A…Board connector P: Circuit board W1: Maximum distance between side walls W2: Width of hood W3: Minimum spacing between side walls 10…Inner conductor 11...Terminal connection part 12...Board connection part 13…Top end narrow part (top end) 14...Narrow part on the lower end side (lower end) 15…Wide section 20...Dielectric 21…Front storage section 22…Rear storage section 23…Press-fit hole 24…Storage groove 30…Outer conductor 31…Food section 32…Flange section 33...Portal part 34…Containment space 35...Top wall part 36…Side wall 37...legs 38...Open space 39…Stopper 40…Upper rib (rib) 41…Lower rib (rib) 42…Opposite surface 43...Guide surface

Claims

1. an inner conductor connected to a circuit board; a dielectric material that accommodates the inner conductor; an outer conductor surrounding the dielectric; The outer conductor is a hood portion surrounding a front end portion of the inner conductor; a gate-shaped portion disposed over a range behind the inner conductor and the dielectric, the gate-shaped portion has an opening at a rear surface and a bottom surface facing the circuit board, A rib is formed on an inner surface of at least one of the left and right side wall portions constituting the gate-shaped portion, A board connector in which the minimum opposing distance between the pair of side wall portions including the rib is smaller than the width dimension of the hood portion.

2. a housing space that opens rearward and houses the dielectric body is formed in a region of the outer conductor in front of the gate-shaped portion, 2. The board connector according to claim 1, wherein the rib is formed with a guide surface for guiding the dielectric during insertion of the dielectric into the receiving space.

3. a board connection portion of the inner conductor that is connected to the circuit board is exposed on a rear surface of the dielectric in a vertically elongated state, 3. The board connector according to claim 1, wherein the ribs are disposed only at a height close to an upper end or a lower end of the board connection portion.

4. a board connection portion of the inner conductor that is connected to the circuit board is exposed on a rear surface of the dielectric in a vertically elongated state, a wide portion having a width greater than that of both upper and lower ends is formed in an intermediate region between both upper and lower ends of the board connection portion, 3. The board connector according to claim 1, wherein the rib is disposed at a different height from the wide portion in the vertical direction.

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