Connector

Abstract

A connector (1) comprises a housing element (10) with a fitting section (11A) to be fitted with a mating connector (110), and a fastening element (20) which, together with the housing element (10), is attached to a fixed wall surface (102). The fastening element (20) includes the through-hole (23) of the fastening bolt (50), which is attached to the fastening hole (104) of the fixed wall surface (102) to fasten the fastening element (20) together with the housing element (10) to the fixed wall surface (102). The housing element (10) is positioned on the opposite side of the through hole (23) provided in the fastening element (20), with the fitting section (11A) being arranged between them in the vertical direction (Z), and has the positioning projection section (33) which is designed to project towards the fixed wall surface (102) when assembled.The positioning projection section (33) is inserted into the wall surface groove section (105), which is formed in the fixed wall surface (102), along the insertion and removal direction (X) in the assembled state.

Description

Background of the invention 1. Field of the invention

[0001] The present invention relates to a connector. 2. Description of the state of the art

[0002] Devices such as an inverter and a motor installed in an electric vehicle and a hybrid vehicle are connected to each other by a connector attached to one end of an electrical cable. The connector is electrically connected to a mating part by plugging into a mating connector provided in the mating part.

[0003] For example, Japanese Patent Laid-Open No. 2020-102307 discloses a connector that includes a fitting portion that accommodates a terminal and is fixed to a mating connector provided at a connection target, and a shield shell that accommodates the fitting portion, and that fixes the shield shell and a fixed wall surface of the connection target with a fixing bolt in an assembled state in which the fitting portion is fixed to the mating connector.

[0004] For example, in the connector disclosed in Japanese Patent Application Laid-Open No. 2020-102307, when the shield shell and the fixed wall surface of the connection target are fastened with the fastening bolt, the terminal in the fitting portion may be twisted with respect to the mating connector when the connector is inclined with respect to the mating connector, and therefore there is room for improvement. Summary of the invention

[0005] Therefore, it is an object of the present invention to provide a connector which can be suitably fitted into a mating connector.

[0006] To achieve the aforementioned object, a connector according to one aspect of the present invention comprises a housing member that accommodates a terminal and has a fitting portion that is fitted with a mating connector provided at a connection target; and a fastening member that is fixed to a fixed wall surface of the connection target together with the housing member in an assembled state in which the fitting portion is fitted to the mating connector, wherein the fastening member has a through-hole through which a fastening bolt that communicates with a fastening hole formed in the fixed wall surface along an insertion direction of the fitting portion with respect to the mating connector in the assembled state and is fixed to the fastening hole is inserted into the fastening member along the insertion direction.wherein the housing member or the fastening member has a positioning projection portion positioned on an opposite side of the through-hole transversely to the fitting portion with respect to a cutting direction intersecting the insertion direction, and formed to protrude toward a side of the fixed wall surface in the assembled state, and wherein the positioning projection portion is inserted into a groove portion formed in the fixed wall surface along the insertion direction in the assembled state.

[0007] The foregoing and other objects, features, advantages, as well as technical and industrial significance of this invention will be better understood when the following detailed description of the present preferred embodiments of the invention is read in conjunction with the accompanying drawings. Short description of the drawings Fig. 1 is a perspective view showing a schematic configuration of a connector according to an embodiment; Fig. 2 is a perspective view showing a schematic configuration of the connector according to the embodiment; Fig. 3 is a front view of the connector according to the embodiment, viewed from an insertion direction; Fig. 4 is an exploded perspective view showing a schematic configuration of the connector according to the embodiment; Fig. 5 is a cross-sectional view showing how the connector according to the embodiment is assembled; Fig. 6 is a cross-sectional view showing an assembling process of the connector according to the embodiment; and Fig. 7 is a cross-sectional view showing an assembling process of the connector according to the embodiment. Detailed description of the preferred embodiments

[0008] Below, an embodiment of the present invention will be described in detail with reference to the drawings. It should be noted that the present invention is not limited to this embodiment. Furthermore, the components in the following embodiment include those that can be easily replaced by those skilled in the art or that are substantially the same. Embodiment

[0009] A connector 1 according to the present invention, in the Fig. 1, Fig. 2 and Fig. The embodiment shown in Fig. 3 is incorporated, for example, into a wiring harness WH installed in a vehicle such as an automobile. The wiring harness WH is configured, for example, such that a plurality of wiring elements W used for power supply and signal communication are bundled to form a collective component for connection between devices mounted in a vehicle, and the plurality of wiring elements W are connected to the devices through the connector 1 or the like. The wiring harness WH includes the wiring elements W having conductivity and the connector 1 electrically connected to the wiring elements W.

[0010] The wiring member W includes, for example, an electric wire in which an outer surface of a conductor portion (core wire) including a plurality of conductive metal wires is covered with an insulating cover, an electric wire bundle obtained by bundling the electric wires, a metal rod in which an outer surface of a conductive rod-shaped member is covered with the insulating cover, and the like. The wire harness WH may further include a grommet, a protector, a bracket, an electrical junction box, and the like.

[0011] The connector 1 of the present embodiment is physically and electrically connected to a mating connection device 100. The connector 1 is inserted into a connector insertion hole 103 formed in a housing 101 of the mating device 100 to be fixed to a mating connector 110 to form an electrical connection portion with the mating connection device 100. The connector 1 is fixed to a fixed wall surface 102 of the mating connection device 100 in a state in which the connector 1 is fixed to the mating connector 110. As shown in Fig. 3, the connector 1 in the present embodiment includes a housing member 10 having a fitting portion 11A to be mounted on the mating connector 110 and a fixing member 20 fixed to the fixed wall surface 102. Here, a state in which the connector 1 is fixed to the mating connector 110 is a state in which a fitting portion 11A is fixed to the mating connector 110 and the fixing member 20 is fixed to the fixed wall surface 102. In the present embodiment, the connector 1 is described as a male connector, and the mating connector 110 is described as a female connector.

[0012] In the following description, among an X direction, a Y direction, and a Z direction in the drawing, the X direction is referred to as "insertion and removal direction X," the Y direction is referred to as "width direction Y," and the Z direction is referred to as "vertical direction Z." The insertion and removal direction X, the width direction Y, and the vertical direction Z are orthogonal to each other. In the present embodiment, in the insertion and removal direction X, a direction X1 is referred to as "insertion direction X1," and a direction X2 is referred to as "removal direction X2." The insertion direction X1 is a direction along an insertion direction of the connector 1 with respect to the mating connector 110. In the vertical direction Z, a Z1 direction is referred to as "upward direction Z1," and a Z2 direction is referred to as "downward direction Z2."In the present embodiment, the vertical direction Z is a direction along the vertical direction, but the present invention is not limited thereto.

[0013] The fixed wall surface 102 is a wall surface of the housing 101 on the side of the withdrawal direction X2 of the housing 101 and is a portion to which the connector 1 is attached and fixed. The fixed wall surface 102 consists of a uniform flat surface and is formed with a plurality of holes. Specifically, the fixed wall surface 102 is formed with a connector insertion hole 103, a fixing hole 104, a wall surface groove portion 105, and a pair of groove portions 106. The connector insertion hole 103, the fixing hole 104, the wall surface groove portion 105, and the pair of groove portions 106 are all formed in a substantially linear shape from the fixed wall surface 102 along the insertion and withdrawal direction X.Among the connector insertion hole 103, the fixing hole 104, the wall surface groove portion 105, and the pair of groove portions 106, the connector insertion hole 103, the fixing hole 104, and the wall surface groove portion 105 are arranged linearly along the vertical direction Z. These three holes (or grooves) are arranged in the order of the fixing hole 104, the connector insertion hole 103, and the wall surface groove portion 105 from the upward direction Z1 to the downward direction Z2.

[0014] As in the Fig. 2 and 5 to 7, in the connector insertion hole 103, the mating connector 110 is accommodated within the connector insertion hole 103, and the fitting portion 11A is inserted in a state where the connector 1 is fitted to the mating connector 110. An opening shape of the connector insertion hole 103 is formed in accordance with the shape of the fitting portion 11A of the connector 1 as viewed from the insertion direction X1. For example, an opening shape of the connector insertion hole 103 as viewed from the insertion direction X1 is formed in a substantially elliptical shape. The connector insertion hole 103 is arranged between the fixing hole 104 and the wall surface groove portion 105, among the fixing hole 104, the connector insertion hole 103 and the wall surface groove portion 105 arranged along the vertical direction Z.

[0015] The fastening hole 104 is a portion into which a fastening bolt 50 for fastening the connector 1 to the fixed wall surface 102 is screwed in a state where the connector 1 is attached to the mating connector 110. The fastening bolt 50 includes a head portion 51 and a shaft portion 52. The fastening hole 104 is a hole in which a screw groove is formed on the inner peripheral surface, and a shaft portion 52 of the fastening bolt 50 is screwed therein. The fastening hole 104 is located on the upward direction Z1 side of the connector insertion hole 103.

[0016] The fastening bolt 50 is a fastening element that fixes the connector 1 to the fixed wall surface 102. The head portion 51 is provided at one end in an extending direction of the shaft portion 52 and is a portion that serves as a base portion of the fastening bolt 50. The head portion 51 has a hexagonal shape when viewed from the extending direction of the shaft portion 52. The shaft portion 52 is columnar. On a surface of the shaft portion 52, a spiral screw groove is formed along the extending direction of the shaft portion 52. As shown in Fig. 2, the fastening bolt 50 is inserted into a through hole 23 provided in the fastening element 20 along the insertion and removal direction X. The fastening bolt 50 is fixed to the fastening hole 104 by screwing it into the fastening hole 104 while being inserted into the through hole 23. That is, as shown in Fig. 2, the connector 1 is fixed to the fixed wall surface 102 by the fixing bolt 50 in a state where the fixing member 20 is fixed to cover the housing member 10. With such a configuration, the fixing member 20 is fixed to the fixed wall surface 102 together with a housing member 10 in an assembled state where the fitting portion 11A is fitted to the mating connector 110.

[0017] The wall surface groove portion 105 is a portion into which a positioning projection portion 33 formed on the wall surface groove portion 105 is fitted. Fig. 3 and Fig. 4 side of the connector 1, is inserted in an assembled state in which the fitting portion 11A is fitted into the mating connector 110. An opening shape of the wall surface groove portion 105 is formed, for example, in accordance with a shape as viewed from the insertion direction X1 of the positioning projection portion 33. The wall surface groove portion 105 of the present embodiment is formed to have a rectangular opening shape. The wall surface groove portion 105 is located on the downward direction Z2 side of the connector insertion hole 103. As shown in FIGS. Fig. 2 and 5 to 7, the wall surface groove portion 105 has a pair of first guide surfaces 105a and second guide surfaces 105b.

[0018] The pair of first guide surfaces 105a and second guide surfaces 105b are formed in the vertical direction Z with the opening therebetween. The first guide surface 105a and the second guide surface 105b are inclined inwardly from the fixed wall surface 102 in the direction of the insertion direction X1 into the wall surface groove portion 105.

[0019] The pair of groove portions 106 are portions that receive screw heads provided on the side of the connector 1 in an assembled state in which the fitting portion 11A is mounted to the mating connector 110. The pair of groove portions 106 are arranged at regular intervals along the width direction Y to enclose the wall surface groove portion 105.

[0020] The housing element 10 has a fitting portion 11A which receives the connector terminals 3 and is fitted into the mating connector 110. As shown in Fig. As shown in Figure 4, the housing member 10 includes a plurality of elements. Specifically, the housing member 10 includes a housing 11, a rear cover 12, a front holder 13, an inner housing 14, and a gasket 15. The housing 11, the rear cover 12, the front holder 13, and the inner housing 14 are each made of an insulating resin material. The fitting portion 11A of the present embodiment includes a cylindrical portion 34 provided in the housing 11, a front holder 13 fixed to the cylindrical portion 34, an inner housing 14, and a gasket 15.

[0021] The housing 11 and a rear cover 12 are members joined together to form a box shape and accommodate four connector terminals 3. The connector terminal 3 is a metal terminal made of a conductive metal material. As shown in Fig. 5, the connector terminal 3 is a male terminal electrically connected to a mating female terminal 111. The connector terminals 3 are physically and electrically connected to the terminals of the wiring elements W. Note that the housing 11 and the rear cover 12 accommodate the four connector terminals 3 in a state where they are connected to each other, but are not limited thereto.

[0022] The housing 11 is shaped so that both ends are open in the insertion and removal direction X. In the housing 11, in a state where the connector terminals 3 are housed, the connector terminals 3 are exposed to the outside from the opening on the insertion direction X1 side, and the opening on the removal direction X2 side is closed by the rear cover 12. The housing 11 includes a housing body 30 and a wiring element insertion portion 32, which are integrally formed.

[0023] As in Fig. 3, the housing body 30 has a substantially rectangular shape when viewed from the insertion direction X1. The housing body 30 has an opposing surface 31 facing the fixed wall surface 102 in the insertion and removal direction X, and the cylindrical portion 34 projecting from the opposing surface 31 toward the mating connector 110 and accommodated within the mating connector 110 in an assembled state in which the fitting portion 11A is fitted to the mating connector 110. As shown in FIGS. Fig. As shown in Figures 3 to 7, the opposing surface 31 has the positioning protrusion portion 33 formed to protrude toward the fixed wall surface 102 in an assembled state in which the fitting portion 11A is fitted into the mating connector 110. The cylindrical portion 34 houses the cylindrical inner case 14 along the inner peripheral surface, and the rear cover 12 is fixed along the outer peripheral surface.

[0024] As in Fig. 3, the positioning protrusion portion 33 is located on the opposite side of the through-hole 23 above the fitting portion 11A with respect to the vertical direction Z, which is a sectional direction crossing the insertion direction X1. The positioning protrusion portion 33 has a rectangular cross-sectional shape when viewed in the insertion and removal direction X. The positioning protrusion portion 33 is inserted into the wall surface groove portion 105 in an assembled state in which the fitting portion 11A is fitted to the mating connector 110. The positioning protrusion portion 33 includes a distal end portion 40 provided at a distal end on the insertion direction X1 side, a first inclined surface 41 provided on the upward direction Z1 side of the distal end portion 40, and a second inclined surface 42 provided on the downward direction Z2 side of the distal end portion 40.

[0025] The distal end portion 40 is located between the first inclined surface 41 and the second inclined surface 42 in the vertical direction Z. The first inclined surface 41 is inclined from the distal end portion 40 in the upward direction Z1 along the withdrawal direction X2. The second inclined surface 42 is an inclined surface inclined from the distal end portion 40 in the downward direction Z2 along the withdrawal direction X2.In an assembled state in which the fitting portion 11A is fitted to the mating connector 110 and in a state in which the connector 1 is fixed to the fixed wall surface 102 by the fixing bolt 50, the distal end portion 40 is located on the insertion direction X1 side with respect to the distal end on the insertion direction X1 side of the cylindrical portion 34 when viewed from the width direction Y, and is located on the withdrawal direction X2 side with respect to the distal end on the insertion direction X1 side of the shaft portion 52.

[0026] The inner housing 14 is a member formed separately from the housing 11, which receives and holds the connector terminal 3 along the insertion and removal direction X in a state in which it is fixed to the housing body 30.

[0027] The gasket 15 is a ring-shaped water-stopping member fixed to the housing 11. The gasket 15 is disposed between the housing 11 and the mating connector 110 in an assembled state in which the fitting portion 11A is fixed to the mating connector, and comes into contact with the housing 11 and the mating connector 110 to stop water and ensure sealing performance.

[0028] The wiring element insertion portion 32 is a portion through which the wiring elements W are inserted. The wiring element insertion portion 32 is formed to protrude along the downward direction Z2 from an end portion on the downward direction Z2 side of the housing body 30. The wiring element insertion portion 32 is tubular, and the wiring elements W are guided inside the wiring element insertion portion along the vertical direction Z. That is, the housing 11 holds the connector terminal 3 along the insertion and removal direction X, and the wiring elements W are inserted along the vertical direction Z orthogonal to the insertion and removal direction X.

[0029] The fastening element 20 is fastened to the fixed wall surface 102 together with the housing element 10 in an assembled state in which the fitting portion 11A is connected to the mating connector 110. As shown in Fig. 4, the fastening element 20 comprises a shell body 21 and a lower shell 25. The shell body 21 and the lower shell 25 are each formed from a conductive metal material.

[0030] The shell body 21 is formed in a trough shape to cover the outside of the housing 11, and a support portion 22 is provided at one end portion on the upward direction Z1 side. The shell body 21 is made of a so-called shield shell and is shaped to cover the outside of the housing part 10. The support portion 22 has a through hole 23 through which the fastening bolt 50 is inserted along the insertion and removal direction X. The through hole 23 is a through hole that penetrates the support portion 22 along the insertion and removal direction X, and the shaft portion 52 of the fastening bolt 50 is passed therethrough. As described above, the shell body 21 can be referred to as a shield shell provided with the through hole 23.

[0031] The lower shell 25 is a part that fixes the housing member 10 to the fixing member 20 by being fixed to the shell body 21 with a bolt or the like. The lower shell 25 is fixed to the shell body 21 by fastening two bolts in a state where the wiring member insertion portion 32 of the housing member 10 is sandwiched between the lower shell 25 and the shell body 21 in the insertion and removal direction X.

[0032] Next, a working procedure for attaching the connector 1 having the above-described configuration to the mating connector 110 and for fixing the connector 1 to the fixed wall surface 102 will be described. First, in a state where the fixing bolt 50 is inserted into the through hole 23 of the fixing member 20 of the connector 1, an operator inserts the fixing bolt 50 into the fixing hole 104 of the fixed wall surface 102 and screws in the fixing bolt. At this time, as shown in Fig. 6, the end portion of the connector 1 on the upstream side Z1 is relatively close to the fixed wall surface 102 with respect to the end portion on the downstream side Z2 and cannot be opposed to the fixed wall surface 102.

[0033] When the operator further screws the fastening bolt 50 into the fastening hole 104, the positioning projection portion 33 abuts against the wall surface groove portion 105 of the fixed wall surface 102. At this time, in the positioning projection portion 33, either the distal end portion 40, the second inclined surface 42, or the boundary between the distal end portion 40 and the second inclined surface 42 comes into contact with the second guide surface 105b of the wall surface groove portion 105 and slides thereon.

[0034] Accordingly, the positioning projection portion 33 is inserted toward the wall surface groove portion 105. As a result, the connector 1, as shown in Fig. 7, has no inclination with respect to the fixed wall surface 102 and faces the mating connector 110.

[0035] The operator further tightens the fastening bolt 50 to connect the fitting portion 11A to the mating connector 110 and to connect the connector terminal 3 to the mating terminal 111 of the mating connector 110 ( Fig. 5).

[0036] In the conventional connector, in a case where the fastening bolt 50 is inserted and screwed into the fastening hole 104 in a state where the fastening bolt 50 is inserted into the through hole 23, there is a risk that the connector does not face the fixed wall surface 102 in the insertion and removal direction X. In the case of fastening the connector with a fastening bolt 50, as in Fig.6, the entire connector tends to tilt in the direction intersecting the insertion and removal direction X due to the size of a gap between the shaft portion 52 and the through-hole 23, which is determined by the ratio between the intersection point of the outer diameter of the shaft portion 52 and the intersection point of the inner diameter of the through-hole 23. If the fastening bolt 50 is further tightened in a state where the connector 1 does not oppose the fixed wall surface 102 in the insertion and removal direction X, there is a possibility that the entire connector 1 is fastened to the mating connector 110 in an inclined state. In this case, there is a risk that the connector terminal 3 comes into contact with the mating terminal 111 in an inclined state, and deformation occurs between the terminals.Therefore, the worker can perform the assembly operation while holding the connector 1 facing the fixed wall surface 102 in the insertion and removal direction X, but there is a risk that the assembly operation takes time and effort.

[0037] As described above, the connector 1 according to the present embodiment includes the housing member 10 having the fitting portion 11A to be attached to the mating connector 110, and the fixing member 20 fixed together with the housing member 10 to the fixed wall surface 102. The fixing member 20 has the through-hole 23 of the fixing bolt 50, which is fixed to the fixing hole 104 of the fixed wall surface 102 to fix the fixing member 20 together with the housing member 10 to the fixed wall surface 102. The housing member 10 is positioned on the opposite side of the through-hole 23 formed in the fixing member 20 with the fitting portion 11A interposed therebetween with respect to the vertical direction Z, and has the positioning protrusion portion 33 formed to protrude toward the fixed wall surface 102 in the mounted state.The positioning projection portion 33 is inserted into the wall surface groove portion 105 formed in the fixed wall surface 102 along the insertion and removal direction X in the assembled state.

[0038] With the above configuration, when the connector 1 is fixed to the fixed wall surface 102 by fastening the fastening bolt 50 and inserting the connector 1 into the mating connector 110, the positioning protrusion portion 33 is inserted toward the wall surface groove portion 105. As a result, the connector 1 can correct the inclination of the connector 1 with respect to the mating connector 110, and the connector terminal 3 in the fitting portion 11A can oppose the mating terminal 111 in the mating connector 110 in the insertion and removal direction X. As a result, the connector 1 can suppress rotation between the connector terminal 3 and the mating terminal 111 and can be properly attached to the mating connector.

[0039] In the connector 1 according to the present embodiment, the housing member 10 includes the housing 11 made of resin, and the positioning protrusion portion 33 is formed integrally with the housing 11. Since the housing 11 is made of resin, the connector 1 is easy to form the positioning protrusion portion 33 with respect to the housing 11.

[0040] In the above embodiment, the positioning protrusion portion 33 has a rectangular cross-sectional shape when viewed from the insertion and removal direction X, but the present invention is not limited to this. The positioning protrusion portion 33 may have a circular or elliptical cross-sectional shape when viewed from the insertion and removal direction X, or it may have a triangular, pentagonal, or more polygonal cross-sectional shape.

[0041] In the above embodiment, the positioning projection portion 33 is provided in the housing 11, but is not limited thereto and may be provided in the shell body 21 as a shield shell.

[0042] In the above embodiment, the positioning protrusion portion 33 is provided at one position relative to the connector 1, but the present invention is not limited thereto, and the positioning protrusion portions may be provided at a plurality of positions. In this case, the wall surface groove portions 105 provided on the fixed wall surface 102 may be formed at a plurality of locations corresponding to the positions of the positioning protrusion portions 33. In a case where the plurality of positioning protrusion portions 33 are arranged at regular intervals along the width direction Y, the wall surface groove portion 105 may be a groove formed to extend in the width direction Y so that the plurality of positioning protrusion portions 33 can be inserted simultaneously.

[0043] In the above embodiment, the positioning protrusion portion 33 is positioned in the insertion and removal direction X along the vertical direction Z in the assembled state on a virtual line passing through a center of the through hole 23 and a center of the connector insertion hole 103, but the present invention is not limited to this. That is, the positioning protrusion portion 33 may be provided at a position offset from the virtual line. In this case, the positioning protrusion portion 33 is preferably provided on the downward direction Z2 side of the connector insertion hole 103.

[0044] In the above embodiment, in the connector 1, the wiring elements W are pulled out toward the downward direction Z2 side, but the present invention is not limited to this. For example, in the connector 1, the wiring elements W may be pulled out toward at least one side in the width direction Y, or may be pulled out toward the withdrawal direction X2 side.

[0045] According to the connector of the present embodiment, the connector can be suitably adapted to the mating connector. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] JP 2020 [0003, 0004] JP 102 307 [0003, 0004]

Claims

[1] Connector (1) comprising: a housing member (10) accommodating a terminal (3) and having a fitting portion (11A) that mates with a mating connector (110) provided at a connection target (100); and a fastening element (20) which is fastened to a fixed wall surface (102) of the connection target (100) together with the housing element (10) in an assembled state in which the fitting portion (11A) is fitted to the mating connector (110), wherein the fastening element (20) comprises a through hole (23) through which a fastening bolt (50) communicating with a fastening hole (104) formed in the fixed wall surface (102) along an insertion direction (X1) of the fitting portion (11A) with respect to the mating connector (110) in the assembled state and fixed to the fastening hole (104) is inserted into the fastening element (20) along the insertion direction (X1), wherein the housing element (10) or the fastening element (20) comprises a positioning projection portion (33) positioned on an opposite side of the through hole (23) above the fitting portion (11A) with respect to a cutting direction (Z) intersecting the insertion direction (X1), and formed to protrude toward one side of the fixed wall surface (102) in the assembled state, and wherein the positioning projection portion (33) in the assembled state is inserted into a groove section (105) formed in the fixed wall surface (102) along the insertion direction (X1). [2] Connector (1) according to claim 1, wherein the housing element (10) comprises: a housing (11) made of resin, the fastening element (20) comprises: a metallic shielding shell (21) covering an outer side of the housing (11), the through hole (23) is formed integrally with the shielding shell (21), and the positioning projection section (33) is formed integrally with the housing (11).

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