connector

Abstract

To provide a connector that can prevent the stopcock from falling off the voltage detection plate without increasing the number of parts. [Solution] The connector 1 comprises a housing 10 having a mating portion 22 that fits into a mating connector, a tab terminal 41 connected to the end of a shielded wire 44 and housed in the mating portion 22, a voltage detection hole 37 provided in the housing 10 that faces outward towards the tab terminal 41, a stopcock 86 whose stopcock body waterproofs and seals the voltage detection hole 37, a voltage detection plate 80 fixed to the housing 10 with the stopcock 86 assembled, a mounting hole 81 formed in the voltage detection plate 80 having an elongated opening shape, and a locking head 88 of the stopcock 86 having an elongated cross-sectional shape that can be inserted through the mounting hole 81 with its longitudinal direction aligned.

Description

[[Technical Field]]

[0001] The present invention relates to a connector. [[Background Art]]

[0002] Conventionally, as a connector connected to a large-current cable, one disclosed in, for example, Patent Document 1 is known. This connector has a housing that can be fitted into a mounting hole provided in a case of an apparatus.

[0003] Housed inside this housing are terminal fittings connected to an end of an electric wire and connected to a mating terminal. A voltage detection hole that exposes the terminal fitting upward is opened in an upper surface portion of the housing. A pair of these voltage detection holes are provided corresponding to the positive electrode and the negative electrode, and are holes for bringing each lead bar of a tester into contact with the terminal fitting. This makes it possible to confirm that the terminal fitting is not charged.

[0004] A rubber sealing plug (water stop plug) is tightly fitted into the voltage detection hole, thereby sealing the interior of the housing. The sealing plug is attached to a voltage detection cover (voltage detection plate) mounted on the upper surface of the housing. This sealing plug has a fixing portion that is press-fitted and fixed into a through-hole provided penetrating through the voltage detection cover. If the sealing plug is pulled strongly, the fixing portion will come off the through-hole, so there has been a risk that the sealing plug will fall off the voltage detection cover.

[0005] In view of this, the rubber plug assembly disclosed in Patent Document 2 includes a rubber plug (water stop plug) in which a leg portion is provided around a rubber plug main body portion that water-stops the interior of the housing, and a peripheral wall of a recess provided in the leg portion is continuously connected without breaks, a cover (voltage detection plate) that covers the rubber plug and is fixed to the housing, and a rubber plug holder that has a rubber plug fixing portion provided with a projection that fits into the recess from the opposite side to the cover and is fixed to the cover. According to this rubber plug assembly, it is possible to prevent the leg portion of the rubber plug from coming off the rubber plug fixing portion and the rubber plug from falling off the cover. [[Prior Art Documents]] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2015-82465 [Patent Document 2] Japanese Patent Publication No. 2016-225056 [Overview of the project] [Problems that the invention aims to solve]

[0007] However, in the above-mentioned rubber stopper assembly, the rubber stopper is fixed to the cover (voltage detection plate) by a rubber stopper holder. Therefore, there is a problem in that the manufacturing cost increases due to the increased number of parts and the increased assembly man-hours.

[0008] The present invention has been made in view of the above circumstances, and its purpose is to provide a connector that can prevent a stopcock from falling off the voltage detection plate without increasing the number of parts. [Means for solving the problem]

[0009] The above objective of the present invention is achieved by the following configuration. A housing having a mating portion that fits into the mating connector, A terminal fitting connected to the end of the electric wire and housed in the fitting portion, The housing is provided with a voltage detection hole that faces outward, A water stop valve whose body waterproofs and seals the voltage detection hole, A voltage detection plate is fixed to the housing with the aforementioned shut-off valve assembled, A mounting hole formed in the voltage detection plate having an elongated opening shape, The locking head of the stopcock has an elongated cross-sectional shape that can be inserted through the mounting hole with its longitudinal direction aligned, A connector equipped with the following features. [Effects of the Invention]

[0010] According to the connector of the present invention, it is possible to prevent the stopcock from falling off the voltage detection plate without increasing the number of parts.

[0011] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by referring to the attached drawings and reading through the embodiments for carrying out the invention described below (hereinafter referred to as "embodiments"). [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is a perspective view of a connector according to the first embodiment of the present invention. [Figure 2] Figure 2 is an exploded perspective view of the connector shown in Figure 1. [Figure 3] Figure 3 is a perspective view showing the connector shown in Figure 1 with the voltage detection plate removed. [Figure 4] Figure 4 is a perspective view illustrating the assembly procedure for the voltage detection plate shown in Figure 2. [Figure 5] Figure 5 is a perspective view illustrating the procedure for inserting the stopcock into the mounting hole of the voltage detection plate. [Figure 6] Figures 6(a) and 6(b) are a rear view and a cross-sectional view taken along the line VI-VI, illustrating the procedure for fixing the stopcock to the mounting hole of the voltage detection plate. [Figure 7] Figures 7(a) and 7(b) show a rear view and a cross-sectional view taken along the line VII-VII, respectively, of the stopcock fixed to the mounting hole of the voltage detection plate. [Figure 8] Figure 8 is a perspective view illustrating the assembly procedure of the voltage detection plate of the connector according to the second embodiment of the present invention. [Figure 9] Figure 9 is a perspective view illustrating the procedure for inserting the stopcock shown in Figure 8 into the mounting hole of the voltage detection plate. [Figure 10] Figure 10 is a rear view illustrating the procedure for fixing the stopcock shown in Figure 8 into the mounting hole of the voltage detection plate. [Figure 11]FIG. 11 is a rear view showing a state where the stop valve shown in FIG. 10 is fixed to the mounting hole of the voltage detection plate. MODE FOR CARRYING OUT THE INVENTION

[0013] Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings. (First Embodiment) FIG. 1 and FIG. 2 are a perspective view and an exploded perspective view of a connector 1 according to the first embodiment of the present invention, respectively. In the present specification, the front-rear direction, up-down direction, and left-right direction of the connector 1 follow the directions of the arrows shown in FIG. 1. That is, the front-rear direction is a direction along the connector fitting direction of the connector 1, and the side of the shield case 100 to which a mating connector (not shown) is fitted is defined as the front of the housing 10. The up-down direction is the extending direction of the shielded electric wire 44 perpendicular to the connector fitting direction of the connector 1, and the lead-out direction of the shielded electric wire 44 is defined as downward. Furthermore, the left-right direction is the connector width direction along the longitudinal direction of the substantially oval cross-section of the fitting portion 22 perpendicular to the connector fitting direction.

[0014] As shown in FIG. 1 and FIG. 2, the connector 1 according to the present embodiment includes a housing 10, two terminal-equipped electric wires 40, a cover 30, a shield shell 60, and a voltage detection plate 80. This connector 1 is, for example, a shielded connector used in power supply circuits such as inverters and motors of vehicles such as hybrid vehicles and electric vehicles. This connector 1 is fitted and electrically connected to a mating connector (not shown) provided on a shield case 100 of an inverter, a motor, or the like.

[0015] As shown in FIG. 2, the housing 10 is a substantially L-shaped housing that includes a fitting portion 22 that accommodates tab terminals (terminal fittings) 41 of the terminal-equipped electric wires 40 and is fitted to the mating connector, and two electric wire introduction portions 12 into which the ends of the shielded electric wires 44 connected to the tab terminals 41 are introduced from a downward direction intersecting the fitting direction of the fitting portion 22 (the front-rear direction in FIG. 1).

[0016] The mating portion 22 is formed in a bottomed cylindrical shape with a substantially oval cross-section and protrudes forward in the direction of mating with the mating connector in the housing 10. A pair of terminal insertion holes 14 (see Figure 2) are formed at the bottom of the mating portion 22, arranged in the left-right direction (connector width direction).

[0017] The two wire entry points 12 extend downward, intersecting the mating direction with the mating connector of the housing 10, and are arranged side by side in the left-right direction. Wire entry holes for inserting the shield wire 44 are formed in these wire entry points 12.

[0018] As shown in Figure 2, the housing 10 has a recessed housing portion 13 formed at the rear opposite the fitting portion 22, with an opening 16. A cover 30 is assembled to the opening 16 at the rear of the housing 10 opposite the fitting portion 22. Both the housing 10 and the cover 30 are molded from an electrically insulating synthetic resin.

[0019] When the cover 30 is assembled to the housing 10, the opening 16, which is the mounting hole for the terminal-equipped electric wire 40, is covered by the cover 30. Multiple locking claws 15 are provided protruding from the outer circumferential surface 10a of the housing 10. In addition, a locking projection 17 is provided protruding from the upper center of the outer circumferential surface 10a.

[0020] As shown in Figure 2, the cover 30 is formed in a substantially rectangular plate shape and is assembled to the opening 16 of the housing 10 from the rear side via an annular sealing member 50. Furthermore, the cover 30 has a pair of through-holes 37 for inserting a voltage detection probe (not shown). Also, as shown in Figure 2, a cap nut (nut) 34 for bolting the voltage detection plate 80 (described later) to the back of the connector 1 is integrally molded on the back of the cover 30 by insert molding.

[0021] The sealing member 50 is attached to the outer sealing surface of the cover 30 and provides a waterproof seal between the opening 16 of the housing 10 and the cover 30. As a result, the opening 16 of the housing 10's dwelling section 13 is sealed watertight by the cover 30. The cover 30 has a plurality of locking pieces 35 formed on its periphery, each having a locking hole. When the cover 30 is assembled to the housing 10, the locking claws 15 formed on the housing 10 fit into the locking holes of these locking pieces 35. Each locking piece 35 is then locked by the locking claws 15, holding the cover 30 in the assembled state relative to the housing 10.

[0022] As shown in Figure 2, the terminal-equipped electric wire 40 consists of a shielded electric wire 44, a tab terminal (terminal fitting) 41 connected to the conductor end of the shielded electric wire 44, a shield terminal 43 connected to the braid of the shielded electric wire 44, and first and second sealing packings 45 and 46 that provide a watertight seal between the electric wire introduction section 12 of the housing 10 and the shielded electric wire 44.

[0023] The shielded wire (cable) 44 is configured as a coaxial cable consisting of a core wire arranged from the center, an inner sheath covering the core wire, a conductive braid covering the inner sheath, and an outer sheath covering the braid.

[0024] The tab terminal 41 is formed from a conductive metal material such as copper, copper alloy, aluminum, or aluminum alloy. This tab terminal 41 is crimped onto the exposed core wire at the end of the shielded wire 44 and electrically connected to the shielded wire 44. This tab terminal 41 is inserted into the electrical connection portion of the mating terminal (not shown) provided on the mating connector of the shield case 100, and an electrical connection is made.

[0025] The terminal-equipped wire 40, which is assembled to the housing 10, has the shielded wire 44 passed through the wire insertion hole of the wire introduction section 12, and the tab terminal 41 is inserted into the terminal insertion hole 14 of the mating section 22 and housed in the terminal housing chamber. In this way, the tab terminal 41 of the terminal-equipped wire 40 is fixed to the mating section 22 of the housing 10.

[0026] Furthermore, each shielded wire 44 of the terminal-equipped wire 40 is fitted with first and second sealing packings 45 and 46. The first sealing packing 45 seals the space between the shield terminal 43 connected to the braid of the shielded wire 44 and the wire introduction section 12. The second sealing packing 46 seals the space between the shielded wire 44 and the shield terminal 43. These first and second sealing packings 45 and 46 seal the space between the shielded wire 44 and the wire introduction section 12.

[0027] As shown in Figure 2, the connector 1 according to this embodiment includes a shield shell 60 composed of an upper shield shell (first shield shell) 61 assembled from the rear side of the housing 10 and a lower shield shell (second shield shell) 62 assembled from below. The upper shield shell 61 is formed by press-forming a metal plate, and the lower shield shell 62 is formed by die-casting molten metal.

[0028] The upper shield shell 61 is formed in a box shape having a substantially rectangular, flat bottom plate portion 63 and peripheral walls 65 that are vertically attached to the periphery of the bottom plate portion 63. The bottom plate portion 63 covers the rear surface of the housing 10, and the peripheral walls 65 cover the top surface and left and right sides (sides) of the housing 10. Below the bottom plate portion 63, a first wire clamping portion 73 is provided for clamping the shield terminal 43 of the terminal-equipped wire 40 extending from the wire introduction portion 12 of the housing 10.

[0029] The upper shield shell 61 is provided with a fixing piece 67 having a hole 67a protruding from the left side of the first wire clamping portion 73, a mounting piece 68 having a hole 68a protruding from the upper right corner of the peripheral wall 65, and a locking hole 75 formed in the upper center of the peripheral wall 65.

[0030] Furthermore, the upper shield shell 61 is provided with a pair of through holes 69 formed below the bottom plate portion 63, and through holes 76 and 77 formed above the bottom plate portion 63. The through holes 69 are screw insertion holes through which mounting screws 93 for joining the upper shield shell 61 and the lower shield shell 62 are inserted. The through hole 76 is an oval opening for inserting a voltage detection probe from the back of the upper shield shell 61 into the voltage detection hole 37 of the cover 30. The through hole 77 is a bolt insertion hole through which a fixing bolt 95 for bolting the voltage detection plate 80 to the cap nut 34 of the cover 30 is inserted.

[0031] The lower shield shell 62 has a second wire clamping portion 71 for clamping the shield terminal 43 of the terminal-equipped wire 40 extending from the wire introduction portion 12 of the housing 10, and covers the portion of the front of the housing 10 excluding the fitting portion 22. The lower shield shell 62 is also provided with a fixing piece 64 that protrudes from the left side of the second wire clamping portion 71 corresponding to the fixing piece 67 and has a hole 64a, and a pair of screw holes 66 formed above the second wire clamping portion 71 corresponding to a pair of through holes 69.

[0032] As shown in Figure 2, the voltage detection plate 80 according to this first embodiment has a water stop valve 86 on its inner surface for sealing off the voltage detection hole 37 of the cover 30. As shown in Figure 4, the voltage detection plate 80 is formed from a conductive metal material into a roughly rectangular plate shape, and has bolt insertion holes 84 through which fixing bolts 95 are inserted, and a pair of mounting holes 81. The mounting holes 81 are oval (long) through holes that extend in the vertical direction. That is, the mounting holes 81 have an elongated opening shape in which the opening length extending in the vertical direction is sufficiently longer than the width in the horizontal direction.

[0033] As shown in Figures 4 and 5, the rubber stopcock 86 is constructed integrally with a substantially cylindrical stopcock body 87, a locking head 88 integrally formed at the axial end of the stopcock body 87, and a constricted portion 89 formed between the stopcock body 87 and the locking head 88. The main body 87 of the water stop valve has a cross-sectional diameter slightly larger than the inner diameter of the voltage detection hole 37, and multiple outer lips adhere tightly to the inner surface of the voltage detection hole 37 of the cover 30 to stop the water flow.

[0034] The locking head 88 is formed in a rectangular truss shape with a cross-sectional shape that allows it to be inserted through the mounting hole 81 of the voltage detection plate 80 with its longitudinal direction aligned. Specifically, the locking head 88 is formed such that the longitudinal length L2 of the base of the rectangular truss is approximately the same as the vertical length L1 of the mounting hole 81, and the short-side length W2 of the base of the rectangular truss is approximately the same as the widthwise length W1 of the mounting hole 81.

[0035] Therefore, the locking head 88 can be inserted by aligning its longitudinal direction with the mounting hole 81 of the voltage detection plate 80. Furthermore, the upper surface of the locking head 88 in the square truss is considered the tip side, making insertion into the mounting hole 81 easy. In addition, since the locking head 88 is elastically deformable, it can also be press-fitted into the mounting hole 81.

[0036] The constricted portion 89 has a cross-sectional diameter approximately the same as the widthwise length W1 of the mounting hole 81 and is movably held in the mounting hole 81. Thus, when the voltage detection plate 80 is attached to the back of the upper shield shell 61, the stopcock 86 held in the voltage detection plate 80 is centered and positioned by the reaction force of the stopcock body portion 87 inserted into the voltage detection hole 37 of the cover 30.

[0037] Next, the procedure for attaching the stopcock 86 to the mounting hole 81 of the voltage detection plate 80 will be explained. First, as shown in Figure 5, the locking head 88 of the stopcock 86 is inserted from the front into the mounting hole 81 of the voltage detection plate 80, with its longitudinal direction aligned. Then, as shown in Figures 6(a) and (b), the locking head 88 is pressed into the mounting hole 81 while elastically deforming, and the constricted portion 89 reaches the mounting hole 81.

[0038] Then, the stopcock 86 is rotated 90 degrees axially, so that the longitudinal direction of the locking head 88 of the stopcock 86 is perpendicular to the longitudinal direction of the mounting hole 81, as shown in Figure 7(a). As a result, the stopcock 86, which is held and fixed to the inner surface of the voltage detection plate 80, has a wider engagement area of ​​the locking head 88 with respect to the opening edge of the mounting hole 81, as shown in Figure 7(b), preventing it from falling off the voltage detection plate 80. In other words, it is possible to prevent the stopcock 86 from falling off the voltage detection plate 80 without increasing the number of parts.

[0039] Next, we will describe how to assemble the connector 1 according to this first embodiment. First, as shown in Figure 2, the shielded wire 44 of the terminal-equipped wire 40 is passed through the wire entry section 12 of the housing 10, and the tab terminal 41 is pulled out towards the housing section 13. Then, the tab terminal 41 is inserted into the terminal insertion hole 14 of the housing 10.

[0040] Then, the cover 30 is brought close to the housing portion 13 of the housing 10 so as to cover the opening 16 from the rear side, and the locking claws 15 of the housing 10 are locked into the locking pieces 35 of the cover 30. As a result, the sealing member 50 attached to the housing 10 provides a waterproof seal between the opening 16 of the housing 10 and the cover 30.

[0041] Next, the shield shell 60 is attached to the housing 10. First, the upper shield shell 61 of the shield shell 60 is attached from the rear so as to cover the housing 10 to which the cover 30 is assembled. In this case, the upper shield shell 61 is attached to the rear of the housing 10 by first engaging the locking hole 75 with the locking projection 17 of the housing 10, and then placing the first wire clamping portion 73 over the wire introduction portion 12.

[0042] Next, the lower shield shell 62 of the shield shell 60 is attached from below so as to cover the wire entry section 12 of the housing 10. Then, the upper shield shell 61 and the lower shield shell 62 are fixed to the housing 10 by inserting the mounting screws 93 into the through holes 69 and screwing them into the screw holes 66.

[0043] Furthermore, the upper shield shell 61 and the lower shield shell 62 are electrically connected to each other via mounting screws 93. In addition, one end of the braided shield wire 44 is electrically connected to the shield shell 60 by the shield terminal 43 of the terminal-equipped wire 40.

[0044] Furthermore, the voltage detection plate 80 is attached to the back of the upper shield shell 61 such that the stopcock 86 is inserted through the through hole 76 of the upper shield shell 61 and closes the voltage detection hole 37 of the cover 30. In addition, fixing bolts 95, which are inserted through the bolt insertion hole 84 of the voltage detection plate 80 and the through hole 77 of the upper shield shell 61, are screwed into the cap nuts 34 of the cover 30.

[0045] As shown in Figure 1, the connector 1 according to this first embodiment has a mating portion 22 that is fitted into a mating connector provided on the shield case 100. Connector 1 is electrically connected when the tab terminal 41 in the mating portion 22 is inserted into the electrical connection portion of the mating terminal. When connector 1 is mated to the mating connector, the mounting piece 68 of the upper shield shell 61 is placed on the fixing boss 101 of the shield case 100, and the double-layered portion 70 of the shield shell 60 is placed on the fixing boss 102 of the shield case 100.

[0046] Therefore, the fixing bolt 94 inserted into the hole 68a of the mounting piece 68 of the upper shield shell 61 is screwed into the threaded hole of the fixing boss 101, and the fixing bolt 94 inserted into the holes 64a and 67a of the fixing pieces 64 and 67 is screwed into the threaded hole of the fixing boss 102. As a result, the connector 1 is pushed toward the mating connector by the fastening force of the fixing bolt 94. This makes it possible to easily mate connector 1 with the mating connector.

[0047] Then, when inserting a voltage detection probe into the voltage detection hole 37 provided in the cover 30 to check whether or not electricity is flowing through the tab terminal 41 of the terminal-equipped wire 40, as shown in Figure 3, loosen the fixing bolt 95 and remove the voltage detection plate 80 from the back of the upper shield shell 61.

[0048] In this case, even if the main body 87 of the stopcock is pulled strongly, the stopcock 86, which has a wide engagement area for the locking head 88 with respect to the opening edge of the mounting hole 81, will not fall off the voltage detection plate 80. Furthermore, the stopcock 86 is a single part, just like conventional seal plugs, and the number of parts does not increase.

[0049] Therefore, according to the connector 1 of this first embodiment, it is possible to prevent the stopcock 86 from falling off the voltage detection plate 80 without increasing the number of parts.

[0050] (Second Embodiment) Figure 8 is a perspective view illustrating the assembly procedure for the voltage detection plate 80A of the connector 1 according to the second embodiment of the present invention. Figure 9 is a perspective view illustrating the procedure for inserting the stopcock 86A shown in Figure 8 into the mounting hole 82 of the voltage detection plate 80A.

[0051] As shown in Figure 8, the voltage detection plate 80A according to this second embodiment has a shut-off valve 86A on its inner surface for sealing off the voltage detection hole 37 of the cover 30. As shown in Figure 8, the voltage detection plate 80A is formed from a conductive metal material into a roughly rectangular plate shape, and has bolt insertion holes 84 through which fixing bolts 95 are inserted, and a pair of mounting holes 82.

[0052] The mounting hole 82 is a through-hole having a two-winged insertion portion 82a, a small-diameter locking portion 82b, and a narrow groove-shaped connecting portion 82c that connects the insertion portion 82a and the locking portion 82b. In other words, the mounting hole 82 has an insertion portion 82a with a two-winged (long) opening shape extending in the left-right direction, a locking portion 82b with a smaller opening area than the insertion portion 82a, and a connecting portion 82c that connects the insertion portion 82a and the locking portion 82b.

[0053] As shown in Figures 8 and 9, the rubber stopcock 86A is constructed by integrally comprising a substantially cylindrical stopcock body 87, a locking head 90 integrally formed at the axial end of the stopcock body 87, and a constricted portion 89 formed between the stopcock body 87 and the locking head 90. The main body 87 of the water stop valve has a cross-sectional diameter slightly larger than the inner diameter of the voltage detection hole 37, and multiple outer lips adhere tightly to the inner surface of the voltage detection hole 37 of the cover 30 to stop the water flow.

[0054] The locking head 90 is formed in a two-wing shape with a cross-sectional shape that allows it to be inserted into the insertion portion 82a of the mounting hole 82 of the voltage detection plate 80A with its longitudinal direction aligned. That is, the locking head 90 is formed to have substantially the same external shape as the opening shape of the insertion portion 82a of the mounting hole 82 that extends in the left-right direction.

[0055] Therefore, the locking head 90 can be inserted by aligning its longitudinal direction with the mounting hole 82 of the voltage detection plate 80A. The constricted portion 89 has approximately the same dimensions as the inner diameter of the locking portion 82b in the mounting hole 82 of the voltage detection plate 80A, and has a cross-sectional diameter slightly larger than the groove width of the communication portion 82c, allowing it to move within the communication portion 82c.

[0056] Next, we will explain the procedure for attaching the stopcock 86A to the mounting hole 82 of the voltage detection plate 80A. First, as shown in Figure 9, the locking head 90 of the stopcock 86A is inserted from the front into the insertion portion 82a of the mounting hole 82 of the voltage detection plate 80A, with its longitudinal direction aligned.

[0057] Subsequently, as shown in Figure 10, by moving the stopcock 86A upwards from the mounting hole 82, the constricted portion 89 passes through the communication portion 82c while the locking head 90 reaches the locking portion 82b. As a result, the stopcock 86A, which is held and fixed to the inner surface of the voltage detection plate 80A, has a wider engagement area for the locking head 90 with respect to the opening edge of the locking portion 82b, preventing it from falling off the voltage detection plate 80. In other words, it is possible to prevent the stopcock 86A from falling off the voltage detection plate 80A without increasing the number of parts.

[0058] Furthermore, the stopcock 86A is rotated 90 degrees axially, so that, as shown in Figure 11, the longitudinal direction of the locking head 90 of the stopcock 86A is perpendicular to the longitudinal direction of the insertion portion 82a in the mounting hole 82. In this state, the locking head 90 of the stopcock 86A can cover the communication portion 82c of the mounting hole 82. In other words, the two-winged locking head 90 covers the communication portion 82c located near the water-stopping portion of the water-stopping valve body 87, making it less likely for water to directly come into contact with the water-stopping portion and reducing the risk of water entering the voltage detection hole 37.

[0059] For example, if the mounting hole for the voltage detection plate is a so-called "daruma hole" and the disc-shaped locking head of the stopcock is attached, then if the hole is made smaller to prevent water from directly contacting the area near the stopcock, it becomes necessary to reduce the engagement area of ​​the stopcock due to concerns about the stopcock breaking, which makes it difficult to achieve sufficient holding force for the stopcock.

[0060] In contrast, in the voltage detection plate 80A according to this second embodiment, the insertion portion 82a of the mounting hole 82 through which the two-winged locking head 90 of the stopcock 86A is inserted has a two-winged opening shape, which makes it possible to keep the opening area of ​​the mounting hole 82 smaller compared to a round hole, and makes it easier to secure the engagement area of ​​the locking head 90 with respect to the opening edge, thus making it easier to achieve the holding force of the stopcock 86A.

[0061] Furthermore, the present invention is not limited to the embodiments described above, and can be modified, improved, etc., as appropriate. In addition, the material, shape, dimensions, number, placement, etc. of each component in the embodiments described above are arbitrary and not limited, as long as they can achieve the present invention.

[0062] For example, in the above embodiment, the connector 1 of this embodiment was described using a shielded connector as an example, but it is not limited to this and can be applied to various connectors that have a voltage detection plate fixed to the housing with a shut-off valve that closes a voltage detection hole provided in the housing attached.

[0063] Here, the features of the embodiments of the connector according to the present invention described above are briefly summarized and listed below in [1] to [3]. [1] A housing (10) having a mating portion (22) that is mated to the mating connector, A terminal fitting (tab terminal 41) is connected to the end of the electric wire (shielded electric wire 44) and housed in the mating portion (22), The housing (10) has a voltage detection hole (37) that faces outward, The shut-off valve body (87) waterproofs and seals the voltage detection hole (37) of the shut-off valve (86, 86A), With the aforementioned shut-off valves (86, 86A) assembled, a voltage detection plate (80, 80A) is fixed to the housing (10), Mounting holes (81, 82) formed in the voltage detection plate (80, 80A) having an elongated opening shape, The locking heads (88, 90) of the stopcock (86, 86A) have an elongated cross-sectional shape that allows them to be inserted through the mounting holes (81, 82) with their longitudinal directions aligned, A connector (1) equipped with [a specific feature].

[0064] According to the connector (1) with the configuration described in [1] above, after the locking heads (88,90) of the stopcock (86,86A) are inserted into the mounting holes (81,82) of the voltage detection plate (80,80A) with their longitudinal directions aligned, the stopcock (86,86A) is rotated 90 degrees axially so that the longitudinal direction of the locking heads (88,90) is perpendicular to the longitudinal direction of the mounting holes (81,82). As a result, the engagement area of ​​the locking heads (88,90) of the stopcock (86,86A) held and fixed to the inner surface of the voltage detection plate (80,80A) is widened, preventing it from falling out of the voltage detection plate (80,80A).

[0065] [2] The mounting hole (81) has an oval opening shape, The locking head (88) is formed in a rectangular pendulum shape having a cross-sectional shape that allows it to be inserted through the mounting hole (81) with its longitudinal direction aligned. The connector (1) described in [1] above.

[0066] According to the connector (1) with the configuration described in [2] above, the locking head (88), which is formed in a square truss shape, is inserted into the mounting hole (81) of the voltage detection plate (80) with its longitudinal direction aligned. Then, the stopcock (86) is rotated 90 degrees axially so that the longitudinal direction of the locking head (88) is perpendicular to the longitudinal direction of the mounting hole (81). As a result, the stopcock (86), which is held and fixed to the inner surface of the voltage detection plate (80), has a wider engagement area with respect to the opening edge of the mounting hole (81), preventing it from falling off the voltage detection plate (80).

[0067] [3] The mounting hole (82) has an insertion portion (82a) having a two-winged opening shape, a locking portion (82b) having a smaller opening area than the insertion portion (82a), and a connecting portion (82c) that connects the insertion portion (82a) and the locking portion (82b), The locking head (90) is formed in a two-wing shape having a cross-sectional shape that allows it to be inserted into the insertion portion (82a) with its longitudinal direction aligned. The connector (1) described in [1] above.

[0068] According to the connector (1) with the configuration described in [3] above, the locking head (90), which is formed in a two-wing shape, is inserted longitudinally into the insertion portion (82a) of the mounting hole (82) of the voltage detection plate (80A). Then, by moving the stopcock (86A), the locking head (90) reaches the locking portion (82b). As a result, the stopcock (86A), which is held and fixed to the inner surface of the voltage detection plate (80A), has a wider engagement area between the locking head (90) and the opening edge of the locking portion (82b), preventing it from falling off the voltage detection plate (80A). Furthermore, when the stopcock (86A) is rotated 90 degrees axially, and the longitudinal direction of the locking head (90) of the stopcock (86A) is perpendicular to the longitudinal direction of the insertion portion (82a) in the mounting hole (82), the locking head (90) can cover the communication portion (82c) of the mounting hole (82). In other words, the two-winged locking head (90) covers the communication portion (82c) near the water-stopping portion of the stopcock body (87), making it less likely for water to directly come into contact with the water-stopping portion and reducing the risk of water entering the voltage detection hole (37). [Explanation of Symbols]

[0069] 1… Connector 10… Housing 22…Matching part 44...Shielded power lines (power lines) 41... Tab terminals (terminal fittings) 37...hole for voltage detection 81…Mounting holes 80... Voltage detection plate 86... water stop valve 87...Water stop valve body 88... Locking head

Claims

1. A housing having a mating portion that fits into the mating connector, A terminal fitting connected to the end of the electric wire and housed in the fitting portion, The housing is provided with a voltage detection hole that faces outward, A water stop valve whose body waterproofs and seals the voltage detection hole, A voltage detection plate is fixed to the housing with the aforementioned shut-off valve assembled, A mounting hole formed in the voltage detection plate having an elongated opening shape, The locking head of the stopcock has an elongated cross-sectional shape that can be inserted through the mounting hole with its longitudinal direction aligned, A connector equipped with the following features.

2. The mounting hole has an oval opening shape, The locking head is formed in a rectangular pendulum shape having a cross-sectional shape that allows it to be inserted through the mounting hole with its longitudinal direction aligned. The connector according to claim 1.

3. The mounting hole has an insertion portion having a two-winged opening shape, a locking portion having a smaller opening area than the insertion portion, and a connecting portion that connects the insertion portion and the locking portion. The locking head is formed in a two-wing shape having a cross-sectional shape that allows it to be inserted into the insertion portion with its longitudinal direction aligned. The connector according to claim 1.

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