connector

Abstract

To provide a connector capable of preventing reduction in sealing performance caused by the occurrence of bias of a cover when a component is bolted to the cover.SOLUTION: A connector 1 includes: a housing 10 having a fitting portion 11 to be fitted to a mating connector; a cover 30 assembled to an opening 16 opposite to the fitting portion 11; an annular seal member 50 sealing a gap between the inner peripheral side seal surface 16a of the opening 16 and the outer peripheral side seal surface of the cover 30; a plurality of reinforcing ribs 19 disposed at predetermined intervals along the inner peripheral surface of the housing 10 and extending along the assembling direction of the cover 30; engaging projections 70 projecting from the inner bottom surface of the cover 30 and configured to restrict displacement of the cover 30 with respect to the housing 10 by being meshed with the reinforcing ribs 19; and a fixing bolt 85 screwed into the cap nut 34 provided on the cover 30 to fix a voltage detection plate 80 fixed to the cover 30.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] Conventionally, as disclosed in Patent Documents 1 to 3, for example, a connector to be attached to a device case includes a synthetic resin housing formed in a generally L-shape and having a fitting portion that houses a terminal connected to the end of an electric wire and is fitted into a device-side connector (mating connector), and an electric wire introduction portion through which the electric wire connected to the terminal is introduced from a direction intersecting the fitting direction of the fitting portion. The housing has an access hole (opening) formed on the side opposite the fitting portion, and a cover attached to the access hole.

[0003] A seal ring (annular seal member) is attached to the outer seal surface of the cover, and fits tightly against the inner seal surface of the working hole (inner seal surface) to seal the inside of the housing. By being attached to the working hole, the cover protects the housing from water and other contaminants entering through the working hole. In other words, the seal ring provides a seal between the inner seal surface of the working hole and the outer seal surface of the cover.

[0004] Also known are connectors that allow a voltage detector probe to be inserted into a voltage detector hole on the back of the connector to check whether electricity is flowing to the terminals housed within the housing. In such connectors, the voltage detector hole is sometimes provided in the cover, and if the connector is installed in a non-waterproof space, the voltage detector hole must be sealed with a water stop valve. Therefore, a voltage detector plate (component) must be attached to the cover to hold the water stop valve that seals off the voltage detector hole. Such voltage detector plates are typically bolted to the cover with fixing bolts that thread into nuts on the cover. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-86150 [Patent Document 2] Japanese Patent Application Laid-Open No. 2015-82466 [Patent Document 3] Japanese Patent Publication No. 2022-2194 Summary of the Invention [Problem to be solved by the invention]

[0006] The cover attached to the access hole is centered and positioned relative to the inner sealing surface of the access hole by the reaction force of the annular sealing member. If a force other than the reaction force of the sealing member is applied to the cover attached to the access hole, the cover may become misaligned.

[0007] Therefore, when the above-mentioned electroscopic plate is fixed to the cover with bolts, the tightening torque of the fixing bolts is applied to the cover, causing it to rotate together, which may cause the cover to shift to one side and make it impossible to ensure the sealing allowance of the sealing member.

[0008] The present invention has been made in consideration of the above-mentioned circumstances, and its purpose is to provide a connector that can prevent the cover from shifting to one side when a component is bolted to the cover, thereby preventing a decrease in sealing performance. [Means for solving the problem]

[0009] The above object of the present invention can be achieved by the following configuration. a housing having a mating portion to be mated with a mating connector; a cover attached to the opening on the opposite side to the fitting portion; an annular seal member that seals between an inner circumferential seal surface of the opening and an outer circumferential seal surface of the cover; a plurality of reinforcing ribs disposed at predetermined intervals along an inner peripheral surface of the housing located on the inner side of the opening relative to an inner peripheral seal surface and extending in an assembly direction of the cover; an engaging protrusion provided on an inner bottom surface of the cover and engaging with the reinforcing rib to restrict displacement of the cover relative to the housing; a component fixed to the cover; a fixing bolt that is screwed into a nut provided on the cover to fix the component; A connector comprising: [Effects of the Invention]

[0010] According to the connector of the present invention, it is possible to prevent the cover from shifting to one side when fixing a component to the cover with bolts, thereby preventing a decrease in sealing performance.

[0011] The present invention has been briefly described above. The details of the present invention will become clearer by reading the following detailed description of the invention (hereinafter referred to as "embodiments") with reference to the accompanying drawings. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view of a connector according to one embodiment of the present invention. [Figure 2] FIG. 2 is an exploded perspective view of the connector shown in FIG. [Figure 3] FIG. 3 is a perspective view illustrating the assembly procedure of the connector shown in FIG. [Figure 4] FIG. 4 is a rear view of the housing shown in FIG. [Figure 5] 5 is a perspective view of the inner bottom surface side of the cover shown in FIG. 2. FIG. [Figure 6] FIG. 6 is a front view showing the inner bottom surface of the cover to which the sealing member is attached. [Figure 7] 7A to 7C are perspective views illustrating the assembly procedure of the connector shown in FIG. [Figure 8] FIG. 8 is a schematic left side view of the connector shown in FIG. [Figure 9] FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. [Figure 10] FIG. 10 is an enlarged view of the main part of FIG. [Figure 11] FIG. 11 is a rear view of the connector shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. (Embodiment) 1 and 2 are a perspective view and an exploded perspective view of a connector 1 according to one embodiment of the present invention. In this specification, the front-rear direction, up-down direction, and left-right direction of the connector 1 correspond to the directions of the arrows shown in Figures 1 to 3. That is, the front-rear direction is the direction along the connector fitting direction of the connector 1, and the side where a mating connector (not shown) is fitted is defined as the front of the housing 10. The up-down direction is the extension direction of the shielded wire 44 that is perpendicular to the connector fitting direction of the connector 1, and the direction in which the shielded wire 44 is drawn out is defined as downward. Furthermore, the left-right direction is the longitudinal direction of the rectangular opening in the bottomed tubular fitting portion 11 that is perpendicular to the connector fitting direction.

[0014] 1 and 2, the connector 1 according to this embodiment includes a housing 10, two electric wires 40 with terminals, a cover 30, a sealing member 50, a shield shell 60, and a voltage detector plate 80. This connector 1 is a shielded connector used in the power supply circuits of inverters, motors, etc. of vehicles such as hybrid vehicles and electric vehicles. This connector 1 is fitted into a mating connector provided in the case of the inverter, motor, etc., for electrical connection.

[0015] As shown in FIGS. 2 and 3, the housing 10 is a housing formed in a substantially L-shape and has a fitting portion 11 that accommodates the tab terminal (terminal) 41 of the terminal-fitted electric wire 40 and is fitted into an equipment-side connector (mating connector), and an electric wire introduction portion 12 through which an end of the shielded electric wire 44 connected to the tab terminal 41 is introduced from a direction intersecting with the fitting direction X (see FIG. 1) of the fitting portion 11.

[0016] The fitting portion 11 is formed in a cylindrical shape with a rectangular opening and a bottom, and protrudes forward in the fitting direction X with the mating connector of the housing 10. A pair of terminal insertion holes (see FIG. 4) are formed in the bottom of the fitting portion 11. A packing 24 and a front holder 22 are attached to the outer periphery of the fitting portion 11, and an inner housing 20 having terminal accommodating chambers 21 is attached to the inner periphery of the fitting portion 11.

[0017] The wire introduction portion 12 extends downward intersecting with the fitting direction X of the housing 10 with the mating connector. The wire introduction portion 12 is formed with a wire insertion hole 18 (see FIG. 9) through which the shielded wire 44 is inserted.

[0018] The rear of the housing 10, opposite the fitting portion 11, is a receiving portion 13 formed in a recessed shape with an opening 16. A cover 30 is attached to the opening 16 on the rear side of the housing 10 opposite the fitting portion 11. The housing 10 and cover 30 are molded from an electrically insulating synthetic resin. When the cover 30 is attached to the housing 10, the opening 16, which is an attachment hole for the terminal-fitted electric wire 40, is covered by the cover 30.

[0019] 3 and 4, a plurality of ribs 17 are arranged along the outer peripheral surface 10a of the housing 10 corresponding to the outside of the opening 16. The ribs 17 are protrusions with a rectangular cross section that extend in the assembly direction of the upper shield shell 61, which will be described later. Furthermore, a plurality of locking claws 15 are protrudingly provided on the outer peripheral surface 10a of the housing 10.

[0020] 3 and 4, a plurality of reinforcing ribs 19 are arranged at the corners of the accommodating portion 13 to suppress deformation of the accommodating portion 13. The reinforcing ribs 19 are arranged at predetermined intervals along the inner peripheral surface 10b of the housing 10 located on the rear side of the inner peripheral sealing surface 16a of the opening 16, and extend in the assembling direction of the cover 30 (the front-rear direction of the connector 1).

[0021] That is, the reinforcing rib 19 extends from the bottom surface 10c of the housing 10 along the inner peripheral surface 10b toward the open end of the opening 16, with the end of the reinforcing rib 19 in the extending direction being located further back than the inner peripheral seal surface 16a. The end of the reinforcing rib 19 in the extending direction has an abutment surface 19a that is parallel to the width direction end surface 51c of the seal main body 51 when the cover 30 is assembled to the opening 16.

[0022] 5 and 6, the cover 30 is formed in a substantially rectangular plate shape. The cover 30 is attached to the opening 16 of the housing 10 from the rear side with an annular seal member 50 interposed therebetween. The cover 30 has an outer peripheral seal surface 31 having an outer peripheral shape corresponding to the opening 16 of the housing 10 and onto which the seal member 50 is fitted, and a flange portion 32 projecting radially outward from the rear end of the outer peripheral seal surface 31 in the assembly direction. The flange portion 32 restricts rearward movement of the seal member 50 fitted onto the outer peripheral seal surface 31.

[0023] A pair of voltage detection holes 37 for inserting a voltage detection probe (not shown) are formed through the cover 30. Furthermore, as shown in Fig. 3, cap nuts 34 for bolt-fixing a voltage detection plate 80 (described later) to the back surface of the connector 1 are integrally molded by insert molding on the back surface of the cover 30.

[0024] Furthermore, a pair of engagement projections 70 are provided on the inner bottom surface 36 of the cover 30 to restrict displacement of the cover 30 relative to the housing 10 by engaging with the reinforcing ribs 19 of the housing 10 .

[0025] As shown in FIG. 6, the pair of engaging projections 70 are arranged symmetrically with respect to a central plane S of the cover 30 that includes the axis P of the cap nut 34 that is arranged at the center of the cover 30 in the vertical direction.

[0026] Therefore, when the cover 30 rotates around the axis P of the cap nut 34, the same rotational moment acts on each of the pair of engaging protrusions 70. Therefore, the pair of engaging protrusions 70, on which the rotational torque of the cover 30 acts equally, can be made to have the same shape and strength, which makes it easy to mold the cover 30 from resin.

[0027] The engaging protrusion 70 is a columnar protrusion with a U-shaped cross section, integrally formed with a pair of support piece portions 71, each with its inner surface 71a facing the outer surface 19b of the pair of reinforcing ribs 19 in the thickness direction, and a connecting piece portion 73 that connects the pair of support piece portions 71 (see Figure 10).

[0028] Therefore, when the cover 30 rotates around the axis P of the cap nut 34, the inner surface 71a of the support piece portion 71 of the engaging protrusion 70 is in surface contact with the outer surface 19b, and is able to apply rotational torque to the reinforcing rib 19. Therefore, the stress acting between the engaging protrusion 70 and the reinforcing rib 19 can be dispersed, and damage to the engaging protrusion 70 and the reinforcing rib 19 can be suppressed without increasing strength by making them larger than necessary.

[0029] 2, the seal member 50 is composed of a seal body 51 formed in an annular shape from an elastic material such as rubber, and a plurality of T-shaped locking pieces 53 that protrude toward the center from the rear end of the seal body 51 in the insertion direction. The T-shaped locking pieces 53 each have a T-shape with leading ends extending to the left and right.

[0030] An outer lip 51a is provided on the outer peripheral surface of the seal body 51, which fits tightly against the inner peripheral seal surface 16a of the opening 16. An inner lip 51b is provided on the inner peripheral surface of the seal body 51, which fits tightly against the outer peripheral seal surface 31 of the cover 30. Furthermore, a widthwise end surface 51c of the seal body 51 can face a contact surface 19a formed on the end of the reinforcing rib 19 in the extension direction.

[0031] The seal member 50 is attached to the outer peripheral seal surface 31 of the cover 30, and provides a waterproof seal between the opening 16 of the housing 10 and the cover 30. The seal member 50 has a T-shaped locking piece 53 that is locked into a locking recess 33 formed on the outer peripheral edge of the cover 30, preventing it from accidentally falling off forward. Furthermore, the cover 30 attached to the opening 16 of the housing 10 is centered and positioned relative to the inner circumferential seal surface 16 a of the opening 16 by the reaction force of the annular seal member 50 .

[0032] As a result, the opening 16 of the accommodating portion 13 of the housing 10 is watertightly sealed by the cover 30. A plurality of locking pieces 35 having locking holes are formed on the periphery of the cover 30. 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 the locking pieces 35. Each locking piece 35 is locked by the locking claws 15, and the cover 30 is maintained in an assembled state on the housing 10.

[0033] As shown in FIG. 2, the electric wire with terminal 40 is composed of a shielded electric wire 44, a tab terminal (terminal) 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 rubber plugs 45, 46 that provide a waterproof seal between the electric wire introduction portion 12 of the housing 10 and the shielded electric wire 44.

[0034] The shielded electric wire (electric wire) 44 is configured as a coaxial cable consisting of a core wire arranged from the center, an inner coating covering the core wire, a conductive braid covering the inner coating, and an outer sheath covering the braid.

[0035] The tab terminal 41 is made of a conductive metal material such as copper, a copper alloy, aluminum, an aluminum alloy, etc. The tab terminal 41 is crimped onto the core wire exposed at the end of the shielded electric wire 44, and is electrically connected to the shielded electric wire 44. This tab terminal 41 is inserted into an electrical connection portion of a mating terminal (not shown) provided on a mating connector, and is electrically connected.

[0036] The electric wire with terminal 40 to be assembled to the housing 10 has the shielded electric wire 44 passed through the electric wire insertion hole 18 of the electric wire introduction portion 12, and the tab terminal 41 inserted into the terminal insertion hole 14 of the fitting portion 11 to be accommodated in the terminal accommodating chamber 21 of the inner housing 20. In this way, the tab terminal 41 of the electric wire with terminal 40 is fixed to the fitting portion 11 of the housing 10.

[0037] Further, rubber stoppers 45, 46 are attached to each shielded electric wire 44 of the terminal-fitted electric wire 40. The rubber stopper 45 seals between the shielded terminal 43 connected to the braid of the shielded electric wire 44 and the electric wire introduction portion 12. The rubber stopper 46 seals between the shielded electric wire 44 and the shielded terminal 43. These rubber stoppers 45, 46 seal between the shielded electric wire 44 and the electric wire introduction portion 12.

[0038] 2 and 3, the connector 1 according to this embodiment includes a shield shell 60 that includes an upper shield shell 61 that is assembled from the rear side of the housing 10 and a lower shield shell 62 that is assembled from the lower side. The upper shield shell 61 and the lower shield shell 62 are each made of a conductive metal material.

[0039] The upper shield shell (shield shell) 61 is formed in a box shape having a substantially rectangular, flat bottom plate portion 63 and a peripheral wall 65 extending vertically from the periphery of the bottom plate portion 63. The bottom plate portion 63 covers the rear surface of the housing 10, and the peripheral wall 65 covers the top surface and left and right side surfaces (side surfaces) of the housing 10.

[0040] The upper shield shell 61 is also provided with a fixing piece 67 having a hole formed therein, and through holes 68, 69, and 91 formed through the bottom plate portion 63. The through hole 68 is an oval opening for inserting a voltage detection probe into the voltage detection hole 37 of the cover 30 from the rear surface of the upper shield shell 61. The through hole 69 is a screw insertion hole through which a mounting screw 93 is inserted for joining the upper shield shell 61 and the lower shield shell 62. The through hole 91 is a bolt insertion hole through which a fixing bolt 85 is inserted for bolt-fixing the voltage detection plate 80 to the cap nut 34 of the cover 30.

[0041] The lower shield shell (shield shell) 62 covers the front surface of the housing 10 except for the fitting portion 11. The lower shield shell 62 is provided with a fixing piece 64 having a hole formed therein and a screw hole 66.

[0042] As shown in FIGS. 2 and 3, the electroscopic plate 80 is made of a conductive metal material and has a substantially rectangular plate shape. The voltage detector plate 80 of this embodiment, which is a component fixed to the cover 30, holds a water stop valve 83 on its inner surface for stopping water from entering the voltage detector hole 37 of the cover 30. The water stop valve 83 is held by the voltage detector plate 80 by press-fitting protrusions 83a that are press-fitted from the front into a pair of mounting holes formed in the voltage detector plate 80.

[0043] The voltage detector plate 80 is also formed with bolt insertion holes 81 through which fixing bolts 85 are inserted. The voltage detector plate 80 is attached to the back surface of the upper shield shell 61 so as to cover the through-hole 68 through which the stop valve 83 is inserted.

[0044] Therefore, the voltage detection plate 80 covers the oval through hole 68 of the upper shield shell 61, through which the voltage detection probe or stop valve 83 is inserted, from the back of the upper shield shell 61, thereby preventing a decrease in shielding performance. The voltage detection plate 80 holding the stop valve 83 is then bolted to the cover 30 via the upper shield shell 61 by a fixing bolt 85 threaded into the cap nut 34 .

[0045] Next, the assembly of the connector 1 according to this embodiment will be described. First, as shown in FIG. 3 , the shielded wire 44 of the terminal-attached wire 40 is passed through the wire introduction portion 12 of the housing 10, and the tab terminal 41 is pulled out toward the accommodating portion 13. Then, the tab terminal 41 is inserted into the terminal insertion hole 14 of the housing 10.

[0046] Then, the cover 30 is brought close to the receiving portion 13 of the housing 10 so as to cover the opening 16 from the rear side thereof, and the locking claws 15 of the housing 10 are locked with the locking pieces 35 of the cover 30 .

[0047] Then, the seal member 50, which is attached so that the inner lip 51b is in close contact with the outer peripheral seal surface 31 of the cover 30, has the outer lip 51a in close contact with the inner peripheral seal surface 16a of the opening 16. Thus, the seal member 50 attached to the housing 10 can provide a waterproof seal between the opening 16 of the housing 10 and the cover 30.

[0048] Furthermore, the engaging protrusions 70 of the cover 30 engage with the reinforcing ribs 19 such that the inner surfaces 71a of the pair of support piece portions 71 face the outer surfaces 19b of the pair of reinforcing ribs 19 in the thickness direction. Thus, the engaging protrusions 70 can restrict rotational displacement of the cover 30 relative to the housing 10 around the axis P of the cap nut 34 (see FIGS. 9 and 10).

[0049] The engaging protrusions 70 also serve as a guide when the cover 30 is assembled to the opening 16 of the housing 10, and are assembled while the inner surface 71a slides over the outer surface 19b of the reinforcing rib 19. Thus, the engaging protrusions 70 prevent forced assembly, such as inserting the cover 30 at an extreme angle relative to the opening 16, and can also prevent the sealing member 50 from getting caught and excessive load from being applied to the locking pieces 35 when the cover 30 is assembled.

[0050] Next, a shield shell 60 is attached to the housing 10 . First, as shown in FIG. 8, the upper shield shell 61 of the shield shell 60 is attached from the rear side so as to cover the housing 10 to which the cover 30 is attached. At this time, the inner surface of the peripheral wall 65 of the housing 10 is in sliding contact with a plurality of ribs 17 protruding from the outer peripheral surface 10a of the housing 10 and is guided during loading.

[0051] Next, the lower shield shell 62 of the shield shell 60 is attached from below so as to cover the wire introduction portion 12 of the housing 10 . Then, the upper shield shell 61 and the lower shield shell 62 are attached to the housing 10, and the through holes 69 of the upper shield shell 61 are communicated with the screw holes 66 of the lower shield shell 62. Thereafter, the mounting screws 93 are inserted into the through holes 69 and screwed into the screw holes 66, thereby fixing the upper shield shell 61 and the lower shield shell 62 to the housing 10.

[0052] The upper shield shell 61 and the lower shield shell 62 are electrically connected to each other via mounting screws 93. Furthermore, one end of the braid of the shielded electric wire 44 is electrically connected to the shield shell 60 by the shield terminal 43 of the electric wire with terminal 40.

[0053] The voltage detection plate 80 is attached to the rear surface of the upper shield shell 61 so that the stopcock 83 passes through the through-hole 68 of the upper shield shell 61 and closes the voltage detection hole 37 of the cover 30.

[0054] Thereafter, the fixing bolt 85 inserted through the bolt insertion hole 81 of the voltage detection plate 80 and the through hole 91 of the upper shield shell 61 is screwed into the cap nut 34 of the cover 30 . 11, the tightening torque of the fixing bolt 85 in the direction of arrow R is applied to the cover 30, causing the cover 30 to tend to rotate together with the fixing bolt 85. However, as shown in FIGS. 9 and 10, the engagement projections 70 of the cover 30 engage with the reinforcing ribs 19 of the housing 10, restricting the rotational displacement of the cover 30 relative to the housing 10 about the axis P of the cap nut 34, and thus preventing the cover 30 from rotating together.

[0055] Therefore, when the electroscope plate 80 is fixed to the cover 30 with bolts, it is possible to prevent the cover 30 from shifting to one side with respect to the opening 16 of the housing 10. As a result, there is no risk that the cover 30 will shift to the opening 16, making it impossible to ensure the sealing allowance of the seal member 50.

[0056] The connector 1 having the above structure is mated at its mating portion 11 with a mating connector provided on the case of an inverter, motor, or the like. As a result, the tab terminals 41 in the mating portion 11 are inserted into the electrical connection portions of the mating terminals and electrically connected. When the connector 1 is mated with the mating connector, the packing 24 adheres tightly to the housing of the mating connector. This seals the mating portion between the connector 1 and the mating connector.

[0057] Furthermore, when mating the connector 1 with the mating connector, a bolt (not shown) inserted into the hole in the fixing piece 67 of the upper shield shell 61 and the hole in the fixing piece 64 of the lower shield shell 62 is screwed into a screw hole (not shown) formed in the case. Then, the fastening force of the bolt presses the connector 1 toward the mating connector. This allows the connector 1 to be easily mated with the mating connector.

[0058] Furthermore, the shield shell 60 is electrically connected to the case by fastening the fixing piece 67 of the upper shield shell 61 to the fixing piece 64 of the lower shield shell 62 with a bolt. As a result, the connector 1 is covered by the shield shell 60 fixed to the case, and a good electromagnetic shielding effect is obtained.

[0059] As described above, according to the connector 1 of this embodiment, when the electroscope plate 80 is fixed to the cover 30 with bolts, the engaging projections 70 of the cover 30 engage with the reinforcing ribs 19 of the housing 10, thereby restricting rotational displacement of the cover 30 relative to the housing 10. This prevents the cover 30 from co-rotating due to the tightening torque of the fixing bolts 85. As a result, the cover 30 does not shift to one side relative to the opening 16 of the housing 10, the sealing allowance of the seal member 50 is secured, a decrease in sealing pressure is prevented, and an excellent waterproof seal is ensured.

[0060] In addition, in the connector 1 according to this embodiment, the part fixed to the cover 30 is a voltage detection plate 80 for holding a water stop valve 83 that stops water from entering the voltage detection hole 37 provided in the cover 30.

[0061] Therefore, when inserting a voltage detection probe into the voltage detection hole 37 provided in the cover 30 to check whether electricity is flowing through the tab terminal 41 of the terminal-attached electric wire 40, the voltage detection plate 80 can be easily removed from the cover 30 by loosening the fixing bolt 85. Furthermore, when the voltage detection plate 80 is attached to the cover 30, the voltage detection hole 37 can be reliably sealed off with the water stop valve 83, and the gap between the opening 16 of the housing 10 and the cover 30 can be reliably sealed.

[0062] The present invention is not limited to the above-described embodiments, and can be appropriately modified, improved, etc. Furthermore, the material, shape, size, number, location, etc. of each component in the above-described embodiments are arbitrary and not limited as long as they can achieve the present invention. For example, in the above embodiment, the connector 1 of this embodiment was described using a shielded connector as an example, but this is not limited to this and can be applied to various connectors that require parts such as a voltage detector plate to be fixed to the cover.

[0063] Here, the features of the above-described embodiments of the connector according to the present invention will be briefly summarized and listed below in [1] to [4]. [1] A housing (10) having a mating portion (11) to be mated with a mating connector; a cover (30) attached to the opening (16) on the opposite side of the fitting portion (11); an annular seal member (50) that seals between an inner peripheral seal surface (16a) of the opening (16) and an outer peripheral seal surface (31) of the cover (30); a plurality of reinforcing ribs (19) arranged at predetermined intervals along an inner peripheral surface (10b) of the housing (10) located on the inner side of the inner peripheral sealing surface (16a) of the opening (16) and extending in the assembling direction of the cover (30); an engaging projection (70) that projects from the inner bottom surface (36) of the cover (30) and engages with the reinforcing rib (19) to restrict displacement of the cover (30) relative to the housing (10); A component (electroscopic plate 80) fixed to the cover (30); a fixing bolt (85) that is screwed into a nut (cap nut 34) provided on the cover (30) to fix the component (electrical detection plate 80); A connector (1) comprising:

[0064] According to the connector (1) having the configuration [1] above, when the component (electrical detection plate 80) is bolted to the cover (30), the engaging projections (70) of the cover (30) engage with the reinforcing ribs (19) of the housing (10), thereby restricting rotational displacement of the cover (30) relative to the housing (10). This prevents the cover (30) from rotating together with the housing (10) due to the tightening torque of the fixing bolts (85). As a result, the cover (30) does not shift to one side relative to the opening (16) of the housing (10), ensuring a sufficient sealing margin for the seal member (50), preventing a decrease in sealing pressure, and ensuring a good waterproof seal.

[0065] [2] The pair of engagement protrusions (70) are arranged symmetrically with respect to a central plane (S) of the cover (30) including the axis (P) of the nut (cap nut 34). The connector (1) described in [1] above.

[0066] According to the connector (1) having the configuration [2] above, when the cover (30) rotates around the axis (P) of the nut (cap nut 34), the same rotational moment acts on each of the pair of engaging protrusions (70). Therefore, the pair of engaging protrusions (70), on which the rotational torque of the cover (30) acts equally, can be made to have the same shape and strength, which makes it easy to mold the cover (30) from resin.

[0067] [3] The engaging projection (70) is a columnar projection having a U-shaped cross section, which is integrally formed with a pair of support piece portions (71) whose inner surfaces (71a) face the outer surfaces (19b) of the pair of reinforcing ribs (19) in the thickness direction, and a connecting piece portion (73) that connects the pair of support piece portions (71). The connector (1) described in [1] above.

[0068] According to the connector (1) having the configuration [3] above, when the cover (30) rotates around the axis (P) of the nut (cap nut 34), the inner surface (71a) of the support piece portion (71) of the engaging projection (70) is in surface contact with the outer surface (19b) and can apply a rotational torque to the reinforcing rib (19). Therefore, the stress acting between the engaging projection (70) and the reinforcing rib (19) can be dispersed, and damage to the engaging projection (70) and the reinforcing rib (19) can be suppressed without increasing the strength by making them larger than necessary.

[0069] [4] The part is an electroscopic plate (80) for holding a stop valve (83) that stops water from entering the electroscopic hole (37) provided in the cover (30). The connector (1) according to any one of the above [1] to [3].

[0070] According to the connector (1) having the configuration [4] above, when inserting a voltage detection probe into the voltage detection hole (37) provided in the cover (30) to check whether electricity is flowing to the terminals (tab terminals 41) housed in the housing (10), the voltage detection plate (80) can be easily removed from the cover (30) by loosening the fixing bolts (85). Furthermore, when the voltage detection plate (80) is attached to the cover (30), the voltage detection hole (37) can be reliably sealed with the stop valve (83), and the gap between the opening (16) of the housing (10) and the cover (30) can be reliably sealed. [Explanation of symbols]

[0071] 1...Connector 10. Housing 11...Mating part 16...Opening 16a...Inner seal surface 19...Reinforcing rib 30...Cover 31...Outer seal surface 34...Cap nut (nut) 40...Wire with terminal 50...Sealing member 60...Shield Shell 70…Engagement protrusion 80...Voltage detector plate (part) 85...Fixing bolt

Claims

1. a housing having a mating portion to be mated with a mating connector; a cover attached to the opening on the opposite side to the fitting portion; an annular seal member that seals between an inner circumferential seal surface of the opening and an outer circumferential seal surface of the cover; a plurality of reinforcing ribs disposed at predetermined intervals along an inner peripheral surface of the housing located on the inner side of the opening relative to an inner peripheral sealing surface thereof and extending in an assembly direction of the cover; an engaging protrusion provided on an inner bottom surface of the cover and engaging with the reinforcing rib to restrict displacement of the cover relative to the housing; a component fixed to the cover; a fixing bolt that is screwed into a nut provided on the cover to fix the component; A connector comprising:

2. The pair of engagement projections are arranged symmetrically with respect to a central plane of the cover including an axis of the nut. The connector according to claim 1 .

3. The engaging projection is a columnar projection having a U-shaped cross section, which is integrally formed with a pair of support piece portions whose inner surfaces face the outer surfaces of the pair of reinforcing ribs in the thickness direction, and a connecting piece portion that connects the pair of support piece portions. The connector according to claim 1 .

4. The part is a voltage detection plate for holding a water stop valve that stops water from entering the voltage detection hole provided in the cover. The connector according to any one of claims 1 to 3.

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