connector

Abstract

A lid (13) closes an opening portion (11) of a case (12) that holds a plurality of terminals (14). Each terminal (14) has a connecting portion (21) to which a counterpart terminal (9) is connected. The lid (13) has a first surface (42), a second surface (43) including an exposed surface (43a) exposed from the opening portion (11) to an inner side of the case (12) on a back surface side of the first surface (42), a first reinforcing rib (45) protruding from the first surface (42), and a second reinforcing rib (47) protruding from the second surface (43). A direction in which the plurality of connecting portions (21) are arranged is set as a first direction (X), and a direction that is a direction intersecting the first direction (X) and that is a direction from a base end toward a tip end of the connecting portion (21) is set as a second direction (Y). The first reinforcing rib (45) extends along the first direction (X). The second reinforcing rib (47) extends along the second direction (Y) between adjacent connecting portions (21).

Description

Technical Field

[0001] This disclosure relates to connectors. Background Technology

[0002] Traditionally, electrical equipment mounted in vehicles was housed within a enclosure. This equipment was electrically connected to other electrical devices, for example, via connectors that were electrically connected to terminal blocks fixed to the enclosure. The terminal blocks were mounted in mounting holes provided within the enclosure. These mounting holes allowed communication between the inside and outside of the enclosure.

[0003] As a connector that connects to a terminal block, for example, as described in Patent Document 1, there is a connector comprising: a connector housing having an opening; a plurality of terminals held in the connector housing; and a cover that closes the opening. When the connector is electrically connected to the terminal block, firstly, the connector housing is disposed on the terminal block. At this time, the cover is not fitted onto the connector housing, and the opening is not closed by the cover. Then, a tool is inserted into the inside of the connector housing through the opening, and by means of this tool, the plurality of terminals on the plurality of opposite terminals of the terminal block are electrically connected respectively. Then, the opening is closed by the cover. Existing technical documents Patent documents

[0004] Patent Document 1: Japanese Patent Application Publication No. 2017-92418 Summary of the Invention The problem that the invention aims to solve

[0005] However, due to heat generated by electrical equipment, the interior of the enclosure can sometimes become very hot. This increases the pressure inside the enclosure, and consequently, the pressure acting on the cover from the inside of the enclosure also increases. Therefore, this pressure change can cause the cover to deform. When the cover deforms, a gap may form between the cover and the connector housing. When a gap forms between the cover and the connector housing, liquids such as water may seep into the interior of the connector.

[0006] The purpose of this disclosure is to provide a connector that can suppress deformation of the cover. Solution for solving the problem

[0007] The connector disclosed herein comprises: a connector housing having an opening; a cover closing the opening; and a plurality of terminals held in the connector housing, each of the plurality of terminals having a connection portion electrically connected to a different counterpart terminal, the plurality of connection portions being arranged in a row inside the connector housing, the cover having: a first surface exposed to the outside of the connector housing; and a second surface including an exposed surface on the back side of the first surface exposed from the opening toward the inside of the connector housing; at least one first reinforcing rib protruding from the first surface; and at least one second reinforcing rib protruding from the second surface, wherein when the direction in which the plurality of connection portions are arranged is designated as a first direction, a direction intersecting the first direction and extending from the base end of the connection portion toward the top end is designated as a second direction, and a direction perpendicular to both the first and second directions is designated as a third direction, the first reinforcing rib extends along the first direction, and the second reinforcing rib extends along the second direction between adjacent connection portions when viewed from the third direction. Invention Effects

[0008] The connector disclosed herein can suppress deformation of the cover. Attached Figure Description

[0009] Figure 1 This is a perspective view of the connector in the implementation method. Figure 2 yes Figure 1 Exploded perspective view of the connector. Figure 3 yes Figure 1 A top view of the cover in the embodiment. Figure 4 yes Figure 3 Side view of the lid. Figure 5 yes Figure 3 A bottom view of the cover. Figure 6 yes Figure 3 A three-dimensional view of the lid. Figure 7 yes Figure 3 A cross-sectional view of the lid. Figure 8 This is a three-dimensional view of the lid in the first variation. Figure 9 This is a three-dimensional view of the lid in the second variation. Figure 10 yes Figure 9 Top view of the cover. Detailed Implementation

[0010] [Description of embodiments of this disclosure] First, embodiments of this disclosure will be described. The connector disclosed herein, [1] The connector housing includes: a connector housing having an opening; a cover closing the opening; and a plurality of terminals held in the connector housing, each of the plurality of terminals having a connection portion electrically connected to a different counterpart terminal, the plurality of connection portions being arranged in a row inside the connector housing, the cover having: a first surface exposed to the outside of the connector housing; and a second surface including an exposed surface on the back side of the first surface exposed from the opening to the inside of the connector housing; at least one first reinforcing rib protruding from the first surface; and at least one second reinforcing rib protruding from the second surface, wherein when the direction in which the plurality of connection portions are arranged is designated as a first direction, a direction intersecting the first direction and extending from the base end of the connection portion toward the top end is designated as a second direction, and a direction perpendicular to both the first and second directions is designated as a third direction, the first reinforcing rib extends along the first direction, and the second reinforcing rib extends along the second direction between adjacent connection portions when viewed from the third direction.

[0011] According to this structure, the cover has a first reinforcing rib on its first surface and a second reinforcing rib on its second surface, which is located on the back side of the first surface. Furthermore, the first reinforcing rib, protruding from the first surface, extends along a first direction. The second reinforcing rib, protruding from the second surface, extends along a second direction, which intersects the first direction. Therefore, compared to the case where the reinforcing rib is only present on either the first or second surface, or where the first and second reinforcing ribs extend in the same direction, the rigidity of the cover can be improved. Therefore, when an external force is applied to the cover, deformation of the cover can be suppressed.

[0012] [2] Preferably, the cover has a sealing portion that, when viewed from the third direction, protrudes from the second surface in a manner that surrounds the exposed surface and is embedded in the opening, wherein the protruding length of at least one of the second reinforcing ribs protruding from the second surface is longer than the protruding length of the sealing portion protruding from the second surface.

[0013] According to this structure, the rigidity of the cover can also be improved by utilizing the sealing part. In addition, because the sealing part is embedded in the opening, it is easy to prevent liquids such as water from seeping into the interior of the connector housing from the opening.

[0014] [3] The cover is a resin molded article, and the second reinforcing ribs are respectively provided between the adjacent connecting parts in the first direction, regardless of whether it is viewed from the second direction or the third direction.

[0015] According to this structure, compared to the case where a second reinforcing rib is provided between adjacent connecting parts in the first direction when viewed from the third direction, but not between adjacent connecting parts in the first direction when viewed from the second direction, the length of the second reinforcing rib in the third direction can be increased. Therefore, the rigidity of the cover can be further improved.

[0016] [4] Preferably, the second surface is wider than the exposed surface in both directions along the first direction, the connector housing has two first guide portions extending along the third direction at both ends of the connector housing in the first direction, and the cover has two second guide portions. The two second guide portions protrude from two portions of the second surface located outside the exposed surface along the first direction, respectively. The two second guide portions are respectively engaged with the two first guide portions to limit the relative misalignment of the connector housing and the cover in the first direction and the second direction.

[0017] According to this structure, when the cover is disposed on the connector housing, by interlocking the first guide portion and the second guide portion, the cover can be easily positioned on the connector housing in both the first and second directions. Therefore, the cover can be easily assembled onto the connector housing.

[0018] [5] Preferably, the cover has at least one of two first reinforcing portions and two second reinforcing portions, the two first reinforcing portions extending from the two second guide portions to a first end of the cover in the second direction on the second surface, and the two second reinforcing portions extending from the two second guide portions to a second end of the cover in the second direction on the second surface.

[0019] According to this structure, the rigidity of the cover can be further improved by utilizing at least one of the second guide portion and the first reinforcing portion and the second reinforcing portion. [6] Preferably, the cover has a peripheral wall portion that protrudes from the first surface and extends along the periphery of the first surface.

[0020] According to this structure, the rigidity of the cover can be further improved by utilizing the peripheral wall portion. [7] Preferably, the peripheral wall portion is formed as an annular ring along the periphery of the first surface. According to this structure, by forming the peripheral wall portion into a ring shape, it is easier to improve the rigidity of the cover compared to not forming the peripheral wall portion into a ring shape.

[0021] [8] Preferably, the at least one second reinforcing rib includes a plurality of second reinforcing ribs, and the cover has at least one connecting rib that connects adjacent second reinforcing ribs in the first direction to each other.

[0022] This structure improves the strength of the second reinforcing rib, thus further enhancing the rigidity of the cover. [9] Preferably, the cover has two of the first reinforcing ribs.

[0023] According to this structure, the rigidity of the cover is increased compared to the case where the cover has only one first reinforcing rib. Furthermore, compared to the case where the cover has three or more first reinforcing ribs, the complexity of the cover's shape can be suppressed. Moreover, compared to the case where the cover has three or more first reinforcing ribs, the amount of material constituting the cover can be reduced.

[0024]

[10] Preferably, at least one of the two end faces of the cover in the second direction includes an outwardly extending along the first direction, the cover having: a sealing portion that protrudes from the second face in a manner that surrounds the exposed surface when viewed from the third direction and is embedded in the opening; an annular sealing member that seals between the outer peripheral surfaces of the opposing sealing portions and the connector housing; and a protrusion that protrudes from at least one of the outwardly extending portions in the second direction or in a direction opposite to the second direction.

[0025] According to this structure, not only the sealing part but also the sealing member can prevent liquid from seeping into the interior of the connector housing from the opening. Furthermore, when the cover, not assembled to the connector housing, is placed on a surface such as the ground or floor, it sometimes faces outwards with its protrusion facing the ground or floor. In this case, the cover is positioned on the surface with a gap formed between the protrusion and the surface of the ground or floor. That is, the cover is positioned with a portion lifted by the protrusion. Therefore, the sealing part can easily be positioned upwards from the ground or floor. Thus, contact between the sealing member located on the outer peripheral surface of the sealing part and the surface of the ground or floor can be prevented. As a result, foreign matter such as sand and dust on the ground or floor can be prevented from adhering to the sealing member.

[0026] [Details of the embodiments of this disclosure] Specific examples of connectors according to this disclosure are described below with reference to the accompanying drawings. Furthermore, the invention is not limited to these examples, but is intended to include all variations within the scope of the claims, as indicated by the claims. Additionally, in the drawings, the dimensional ratios of the constituent elements sometimes differ from the actual dimensional ratios or those in other figures.

[0027] The following describes one embodiment of the connector. Figure 1The connector 10 of this embodiment shown is electrically connected to an electrical device (not shown) mounted on a vehicle. Examples of such electrical devices include, but are not limited to, an electric motor used to drive the vehicle's wheels, which serves as a power source for the vehicle's movement. The electrical device is housed in a housing (not shown). A mounting hole is formed in the housing to allow communication between the inside and outside of the housing. A terminal block is mounted in the mounting hole, and the terminal block has a plurality of opposing terminals 9. Furthermore, the opposing terminals 9 are only... Figure 7 The diagram shows a terminal block, for example, with three opposing terminals 9. Each opposing terminal 9 is electrically connected to an electrical device inside the housing. Each opposing terminal 9 protrudes from the terminal block to the outside of the housing when the connector 10 is not connected to the terminal block.

[0028] like Figure 1 and Figure 2 As shown, the connector 10 includes: a connector housing 12 having an opening 11; a cover 13 for closing the opening 11; and a plurality of terminals 14 held in the connector housing 12. Hereinafter, the connector housing 12 will be referred to as "housing 12".

[0029] (Terminal 14) like Figure 2 and Figure 7 As shown, the connector 10 of this embodiment has three terminals 14, the same number as the counterpart terminal 9. However, when the connector 10 has multiple terminals 14, it is not limited to three and can be varied appropriately. Each terminal 14 is made of a metallic material. Examples of materials for each terminal 14 include copper, copper alloys, aluminum, and aluminum alloys. Each terminal 14 is electrically connected to a different counterpart terminal 9.

[0030] Multiple terminals 14 each have a connecting portion 21 that is electrically connected to a different counterpart terminal 9. The connecting portion 21 is the portion of terminal 14 that overlaps with the counterpart terminal 9. Each terminal 14 has a connecting portion 21 at its end protruding toward the inside of the housing 12. Each terminal 14 has a terminal body portion 22 held by the housing 12. In each terminal 14, the connecting portion 21 extends from the end of the terminal body portion 22 that protrudes toward the inside of the housing 12. In each terminal 14, the end of the connecting portion 21 farthest from the terminal body portion 22 in the protruding direction of the connecting portion 21 is the top end of the connecting portion 21. Additionally, in each terminal 14, the end of the connecting portion 21 closest to the terminal body portion 22 in the protruding direction of the connecting portion 21 is the base end of the connecting portion 21.

[0031] In this embodiment, the connecting portions 21 of the multiple terminals 14 are all formed with the same shape. The connecting portions 21 are, for example, formed as plates with through holes. Each connecting portion 21 has a connecting surface 23 that abuts against the corresponding opposite terminal 9. The connecting surface 23 is, for example, a side surface of the connecting portion 21 in the thickness direction of the plate.

[0032] Multiple connecting portions 21 are arranged in a row inside the housing 12. For example, the multiple connecting portions 21 are arranged in a row such that the connecting surfaces 23 of each connecting portion 21 are disposed in the same plane. Furthermore, the multiple connecting portions 21 are arranged parallel to each other in a direction from the base end to the top end of each connecting portion 21. Adjacent connecting portions 21 are separated from each other in the direction in which the multiple connecting portions 21 are arranged.

[0033] Here, the direction in which the multiple connecting parts 21 are arranged is designated as the first direction X. The first direction X can also be the direction indicated by the arrow on the X-axis in each figure. When the three connecting parts 21 are designated as connecting parts 21a to 21c respectively, the connecting parts 21a to 21c are arranged along the first direction X in the order of connecting part 21a, connecting part 21b, and connecting part 21c. In addition, the direction from the base end of the connecting part 21 toward the top end is designated as the second direction Y. This second direction Y is a direction that intersects with the first direction X. In detail, when the directions from the base end of each connecting part 21 toward the top end are parallel to each other, the direction from the base end of the connecting part 21 toward the top end when viewed from the first direction X is designated as the second direction Y. Furthermore, the direction that is perpendicular to the first direction X and perpendicular to the second direction Y is designated as the third direction Z. For example, when the second direction Y is viewed from the first direction X as a left-to-right direction, the third direction Z is a bottom-to-top direction. In the following description, when we use the terms first direction X, second direction Y, and third direction Z, we are referring to the first direction X, second direction Y, and third direction Z in the connector 10 in the assembled state.

[0034] Multiple terminals 14 are electrically connected to wires 25. Each wire 25 is electrically connected to a portion of the terminal 14 to which it is connected, away from the connection portion 21. Each wire 25 is, for example, a wire with a core made of conductor and an insulating sheath covering the outer periphery of the core. The end of each wire 25 opposite to the end connected to the terminal 14 is electrically connected to an electrical device (not shown) that is different from the electrical device electrically connected to the connector 10 via a terminal block. For example, the end of each wire 25 opposite to the end connected to the terminal 14 is electrically connected to an inverter that generates alternating current from direct current from a battery. Furthermore, this end of each wire 25 may also be electrically connected to an electrical device other than an inverter.

[0035] (Connector housing 12) The housing 12 is, for example, a resin molded article. The housing 12 retains each terminal 14, for example, by using insert molding to arrange a portion of each terminal 14 inside the resin constituting the housing 12. Alternatively, the multiple terminals 14 can be fixed to the housing 12 after the housing 12 and the multiple terminals 14 are formed independently.

[0036] The housing 12 has a housing body 31 with connecting portions 21a to 21c disposed on its inner side. The housing body 31 is cylindrical. The shape of the housing body 31, for example, when viewed from the axial direction of the housing body 31, is formed as a flat shape that is longer in the first direction X and thinner in the second direction Y. The ends of the plurality of terminals 14 having connecting portions 21a to 21c protrude from the inner peripheral surface of the housing body 31 into the inner space of the housing body 31. Furthermore, in this embodiment, the thickness direction of the connecting portions 21a to 21c is parallel to the axial direction of the housing body 31.

[0037] The housing body 31 has an opening 11. The housing body 31 has an opening 11 at its end in the third direction Z. For example, one of the openings at both ends of the housing body 31 in the axial direction corresponds to the opening 11. In the housing body 31, the opening on the side opposite to the opening 11 is an insertion opening 32 disposed inside the terminal block or housing.

[0038] like Figure 1 and Figure 2 As shown, the housing 12 may also have a wire holding portion 33, which holds the ends of the wires 25 that are electrically connected to each terminal 14. The wire holding portion 33 is integrally formed with the housing body 31, for example. The wire holding portion 33 protrudes from the housing body 31 to the outside of the housing body 31. The wire holding portion 33 holds the electrical connection portion of the wires 25 and the terminals 14 on its inner side.

[0039] The housing 12 may also have first guide portions 34a and 34b extending along the third direction Z at both ends in the first direction X. The first guide portion 34a protrudes from a first end in the first direction X of the housing body 31 and extends along the third direction Z. The first guide portion 34a has a guide recess 35a. The guide recess 35a is recessed from the top end of the first guide portion 34a in the first direction X towards a direction opposite to the first direction X. Furthermore, the guide recess 35a penetrates the first guide portion 34a in the third direction Z. The cross-sectional shape of the guide recess 35a, cut with a plane perpendicular to the third direction Z, is, for example, quadrilateral. However, the cross-sectional shape of the guide recess 35a cut with a plane perpendicular to the third direction Z is not limited to a quadrilateral; it can also be any shape such as a semicircle. The cross-sectional shape of the first guide portion 34a cut with a plane perpendicular to the third direction Z is constant in the third direction Z.

[0040] The first guide portion 34b protrudes from its second end in the first direction X of the housing body 31 in a direction opposite to that of the first guide portion 34a, and extends along the third direction Z. The first guide portion 34b has a guide recess 35b. The guide recess 35b is recessed from the top end of the first guide portion 34b in the direction opposite to that of the first direction X towards the first direction X. Furthermore, the guide recess 35b penetrates the first guide portion 34b in the third direction Z. The cross-sectional shape of the guide recess 35b, cut with a plane perpendicular to the third direction Z, is, for example, quadrilateral. However, the cross-sectional shape of the guide recess 35b, cut with a plane perpendicular to the third direction Z, is not limited to a quadrilateral; it can also be any shape such as a semicircle. The cross-sectional shape of the first guide portion 34b, cut with a plane perpendicular to the third direction Z, is constant in the third direction Z.

[0041] (Cover 13) The cover 13 is, for example, a resin molded article. The cover 13 is, for example, made of a resin material with a lower conductivity than that of the terminal 14. The cover 13 has a closing portion 41 that closes the opening 11. The closing portion 41, when viewed from the third direction Z, is formed as a plate larger than the opening 11. Furthermore, the closing portion 41 is, for example, formed as a plate whose length along the first direction X is wider than its length (width) along the second direction Y. The cover 13 is disposed on the housing 12 such that the opening 11 is covered by the closing portion 41. Furthermore, in the cover 13 disposed on the housing 12, the thickness direction of the closing portion 41 coincides with the third direction Z. Additionally, in this cover 13, the thickness direction of the closing portion 41 coincides with the axial direction of the housing body 31. Incidentally, the thickness direction of the closing portion 41 and the third direction Z may not be strictly coincident. Furthermore, the thickness direction of the closing portion 41 and the axial direction of the housing body 31 may not be strictly coincident.

[0042] like Figure 7 As shown, the cover 13 has a first surface 42 exposed to the outside of the housing 12 and a second surface 43 located on the back side of the first surface 42. Incidentally, Figure 7 This is a sectional view of the cover 13 cut with a plane perpendicular to the second direction Y. Figure 3 Sectional view 7-7 in the figure.

[0043] The first surface 42 is, for example, the side of the closed portion 41 opposite to the opening portion 11. The first surface 42 is formed as a plane perpendicular to the third direction Z. Alternatively, the first surface 42 may not be strictly perpendicular to the third direction Z.

[0044] The second surface 43 is, for example, the side surface of the closure 41 that becomes the back side of the first surface 42. The second surface 43 is opposite to the opening 11. The second surface 43 includes an exposed surface 43a that protrudes from the opening 11 toward the inside of the housing 12. The second surface 43 may also be larger than the exposed surface 43a in two directions along the first direction X. Furthermore, the second surface 43 includes, for example, the exposed surface 43a and a non-opposing surface 43b, the non-opposing surface 43b being located on the outer periphery of the exposed surface 43a and not opposite to the opening 11. The second surface 43 is formed as a plane perpendicular to the third direction Z. In addition, the second surface 43 may not be strictly perpendicular to the third direction Z. The exposed surface 43a and the non-opposing surface 43b are, for example, located in the same plane. However, the positions of the exposed surface 43a and the non-opposing surface 43b in the third direction Z may also be staggered. In addition, the second surface 43 may also be composed only of the exposed surface 43a.

[0045] like Figures 4-7 As shown, the cover 13 may also have a sealing portion 44, which protrudes from the second surface 43 and surrounds the exposed surface 43a when viewed from the third direction Z, and is embedded in the opening 11. The sealing portion 44 is formed as a cylinder protruding from the second surface 43 and extending in a direction opposite to the third direction Z. The shape of the sealing portion 44 is formed such that it fits into the housing body 31 from the opening 11, and is smaller than the inner circumferential surface of the housing body 31 when viewed from the third direction Z. Therefore, the sealing portion 44 of this embodiment is formed as a flat shape that is longer in the first direction X and thinner in the second direction Y when viewed from the third direction Z. Incidentally, the exposed surface 43a is the portion of the sealing portion 44 located inside the second surface 43 when viewed from the third direction Z.

[0046] The sealing portion 44 has sidewall portions 44a and 44b facing each other in the second direction Y. Sidewall portion 44a forms a first end portion of the sealing portion 44 in the second direction Y. Sidewall portion 44b forms a second end portion of the sealing portion 44 in the second direction Y. When viewed from the third direction Z, the sidewall portions 44a and 44b extend along the first direction X.

[0047] The sealing portion 44 may also have a sealing groove 44c on its outer peripheral surface. The sealing groove 44c extends in an annular manner, for example, when viewed from the third direction Z. The sealing groove 44c opens on the outer peripheral side of the sealing portion 44.

[0048] The cover 13 may also have an annular sealing member 44d that seals the outer peripheral surfaces of the opposing sealing portions 44 with the housing 12. For example, the sealing member 44d seals the outer peripheral surface of the sealing portion 44 with the inner peripheral surface of the housing body 31, which faces the outer peripheral surface. The sealing member 44d is disposed, for example, in the sealing groove 44c. A rubber ring can be used as the sealing member 44d, for example. Furthermore, as long as the sealing member 44d is formed as an annulus surrounding the outer periphery of the sealing portion 44, a sealing element other than a rubber ring can be used. When the sealing portion 44 is engaged with the housing body 31, the sealing member 44d is fluid-tightly sealed to the inner peripheral surface of the housing body 31 and the inner peripheral surface of the sealing groove 44c. The sealing member 44d prevents liquids such as water that have seeped into the inside of the housing body 31 from the opening 11 from seeping into the terminal block connected to the connector 10.

[0049] like Figures 1-4 and Figure 7 As shown, the cover 13 has at least one first reinforcing rib 45 protruding from the first surface 42. In this embodiment, the cover 13 has two first reinforcing ribs 45. Furthermore, the number of first reinforcing ribs 45 on the cover 13 is not limited to two, but may also be one or more than three.

[0050] Each of the first reinforcing ribs 45 protrudes from the first surface 42 in the third direction Z, i.e., away from the opening 11. Furthermore, when viewed from the third direction Z, each of the first reinforcing ribs 45 extends along the first direction X. Each of the first reinforcing ribs 45 extends, for example, from a first end to a second end on the first surface 42 in the first direction X. That is, each of the first reinforcing ribs 45 extends from a first end to a second end on the closing portion 41 in the first direction X. Each of the first reinforcing ribs 45 is integrally formed with the closing portion 41. The two first reinforcing ribs 45 are separated in the second direction Y. Additionally, the two first reinforcing ribs 45 extend, for example, in parallel. Furthermore, the plurality of first reinforcing ribs 45 need only extend along the first direction X when viewed from the third direction Z, and do not necessarily need to be parallel to each other.

[0051] The cross-sectional shape of each first reinforcing rib 45 cut by a plane perpendicular to the first direction X is, for example, quadrilateral. Furthermore, the cross-sectional shape of the first reinforcing rib 45 cut by a plane perpendicular to the first direction X can be any shape protruding from the first surface 42, and is not limited to a quadrilateral. The cross-sectional shape of the first reinforcing rib 45 cut by a plane perpendicular to the first direction X can also be any shape other than a quadrilateral, such as a polygon, a semicircle, or a shape with a portion of a circle missing.

[0052] The cover 13 may also have a peripheral wall portion 46 that protrudes from the first surface 42 and extends along the periphery of the first surface 42. The peripheral wall portion 46 may be formed, for example, as an annular shape along the periphery of the first surface 42. As used in this description, the term "annular" sometimes refers to any structure forming the annulus or a continuous shape without ends. The shape of an "annular" includes, but is not limited to, circles, ellipses, and polygons with pointed or rounded corners.

[0053] The peripheral wall portion 46 protrudes from the first surface 42 in the third direction Z. For example, when viewed from the third direction Z, the peripheral wall portion 46 is shaped as a flat frame with a width in the first direction X greater than its width in the second direction Y. The peripheral wall portion 46 is integrally formed with the closing portion 41. The cross-sectional shape of the peripheral wall portion 46, when cut with a plane perpendicular to its extending direction, is, for example, quadrilateral. Furthermore, the cross-sectional shape of the peripheral wall portion 46 is not limited to any shape that protrudes from the first surface 42. For example, the cross-sectional shape of the peripheral wall portion 46 can also be any shape other than a quadrilateral, such as a polygon, a semicircle, or a shape with a portion of a circle missing.

[0054] When viewed from the third direction Z, each of the first reinforcing ribs 45 is located, for example, inside the peripheral wall portion 46. Furthermore, both ends of each of the first reinforcing ribs 45 in the first direction X are connected to the peripheral wall portion 46. That is, each of the first reinforcing ribs 45 is integrally formed with the peripheral wall portion 46. Additionally, the protruding length of each of the first reinforcing ribs 45 and the peripheral wall portion 46, for example, protruding from the first surface 42, is the same. Alternatively, the protruding length of each of the first reinforcing ribs 45 and the peripheral wall portion 46 protruding from the first surface 42 may differ.

[0055] like Figures 4-7 As shown, the cover 13 has at least one second reinforcing rib 47 protruding from the second surface 43. The cover 13 has, for example, one fewer second reinforcing rib 47 than the number of connecting portions 21. Specifically, the connector 10 of this embodiment has three terminals 14, therefore the cover 13 has two second reinforcing ribs 47. Furthermore, the cover 13 may have one or more second reinforcing ribs 47, and is not limited to two. Additionally, the number of second reinforcing ribs 47 is not limited to one fewer than the number of terminals 14. For example, if the connector 10 has four or more terminals 14, the number of second reinforcing ribs 47 may be two fewer than the number of terminals 14.

[0056] In this embodiment, the cover 13 is made of a resin material with a lower conductivity than that of the terminal 14. Therefore, each of the second reinforcing ribs 47 has a lower conductivity than that of the terminal 14. Each of the second reinforcing ribs 47 protrudes from the second surface 43 in a direction opposite to the third direction Z, i.e., away from the first surface 42. Furthermore, each of the second reinforcing ribs 47 extends along the second direction Y between adjacent connecting portions 21 when viewed from the third direction Z. For example, when viewed from the third direction Z, a second reinforcing rib 47 is also provided between two adjacent connecting portions 21 in the first direction X. That is, when viewed from the third direction Z, connecting portions 21 are respectively arranged on both sides of each second reinforcing rib 47 in the first direction X. Specifically, when viewed from the third direction Z, a second reinforcing rib 47 is arranged between adjacent connecting portions 21a and 21b in the first direction X. Similarly, when viewed from the third direction Z, a second reinforcing rib 47 is arranged between adjacent connecting portions 21b and 21c in the first direction X.

[0057] Each of the second reinforcing ribs 47 protrudes, for example, from the exposed surface 43a in a direction opposite to the third direction Z. Furthermore, each of the second reinforcing ribs 47 is integrally formed with the closure portion 41. Each of the second reinforcing ribs 47, when viewed from the third direction Z, is formed as a flat plate extending along the second direction Y. For example, each of the second reinforcing ribs 47 is formed as a flat plate perpendicular to the first direction X. However, each of the second reinforcing ribs 47 does not necessarily need to be perpendicular to the first direction X. The two second reinforcing ribs 47 are separated in the first direction X. Furthermore, the two second reinforcing ribs 47 are, for example, parallel to each other. Moreover, the two second reinforcing ribs 47 only need to extend along the second direction Y when viewed from the third direction Z, and do not necessarily need to be parallel to each other.

[0058] Each of the second reinforcing ribs 47, when viewed from the third direction Z, is located, for example, inside the outer peripheral surface of the sealing portion 44. Further, each of the second reinforcing ribs 47 has two ends connected to the sealing portion 44, for example, in the second direction Y. Specifically, the first end of each of the second reinforcing ribs 47 in the second direction Y is connected to the sidewall portion 44a. Further, the second end of each of the second reinforcing ribs 47 in the second direction Y is connected to the sidewall portion 44b. Thus, each of the second reinforcing ribs 47 can also be integrally formed with the sealing portion 44.

[0059] like Figure 7As shown, each of the second reinforcing ribs 47 protrudes longer from the second surface 43 than the connecting portion 21. That is, the distance D1 between the second surface 43 and the top of the second reinforcing rib 47 in the third direction Z is longer than the distance D2 between the second surface 43 and the connecting surface 23 in the third direction Z. Therefore, in the first direction X, a second reinforcing rib 47 is provided between adjacent connecting portions 21. For example, in the first direction X, a second reinforcing rib 47 is provided between adjacent connecting portions 21a and 21b. Furthermore, in the connector 10, regardless of whether it is viewed from the second direction Y or the third direction Z, a second reinforcing rib 47 is provided between adjacent connecting portions 21 in the first direction X.

[0060] Alternatively, the protruding length of at least one second reinforcing rib 47 protruding from the second surface 43 may be longer than the protruding length of the sealing portion 44 protruding from the second surface 43. For example, the protruding length of each of the second reinforcing ribs 47 protruding from the second surface 43 may be longer than the protruding length of the sealing portion 44 protruding from the second surface 43. Therefore, the protruding length of each of the second reinforcing ribs 47 protruding from the second surface 43 in the direction opposite to the third direction Z is longer than that of the sealing portion 44. Therefore, the distance D1 is longer than the distance D3 between the second surface 43 and the top end of the sealing portion 44 in the third direction Z. In addition, the protruding lengths of the two second reinforcing ribs 47 protruding from the second surface 43 may also be equal. Furthermore, the protruding lengths of the plurality of second reinforcing ribs 47 protruding from the second surface 43 may also be different.

[0061] like Figures 4-7 As shown, the cover 13 may also have at least one connecting rib 48, which connects the adjacent second reinforcing ribs 47 in the first direction X to each other. Incidentally, "adjacent second reinforcing ribs 47 in the first direction X" refers to the second reinforcing ribs 47 adjacent in the first direction X when only considering the second reinforcing ribs 47. The cover 13 has, for example, one connecting rib 48. When viewed from the third direction Z, the connecting rib 48 connects the two second reinforcing ribs 47 located on both sides of the connecting portion 21b to each other. That is, when viewed from the third direction Z, the connecting rib 48 connects the second reinforcing rib 47 located between the connecting portions 21a and 21b and the second reinforcing rib 47 located between the connecting portions 21b and 21c.

[0062] The connecting rib 48 is located closer to the connecting portion 21 than the second surface 43 in the third direction Z. The connecting rib 48 extends along the first direction X when viewed from the third direction Z. The connecting rib 48 is provided, for example, on the top surface of the side wall portion 44a. This connecting rib 48 protrudes from the top surface of the side wall portion 44a in a direction opposite to the third direction Z. Furthermore, this connecting rib 48 connects the first ends of two adjacent second reinforcing ribs 47 in the second direction Y to each other. The connecting rib 48 is integrally formed with the two second reinforcing ribs 47 to be connected and the sealing portion 44. The top end of the connecting rib 48 and the top end of the second reinforcing rib 47 in the third direction Z can also be at the same position. Alternatively, the top end of the connecting rib 48 and the top end of the second reinforcing rib 47 in the third direction Z can also be different.

[0063] The cover 13 may also have at least one auxiliary rib 49 integrally formed with the second reinforcing rib 47. The auxiliary rib 49 is integral with the second end of the second reinforcing rib 47 in the second direction Y. For example, each of the second reinforcing ribs 47 may have an auxiliary rib 49. Each auxiliary rib 49 extends along the first direction X when viewed from the third direction Z. In addition, each auxiliary rib 49, together with the integrally formed second reinforcing rib 47, is T-shaped when viewed from the third direction Z. Each auxiliary rib 49 is provided, for example, on the top surface of the side wall portion 44b. Each auxiliary rib 49 protrudes from the top surface of the side wall portion 44b in a direction opposite to the third direction Z. Furthermore, each auxiliary rib 49 is integral with the sealing portion 44. The top end of the auxiliary rib 49 and the top end of the second reinforcing rib 47 may be at the same position in the third direction Z. Alternatively, the top end of the auxiliary rib 49 and the top end of the second reinforcing rib 47 may be at different positions in the third direction Z.

[0064] like Figures 4-6 As shown, the cover 13 may also have a protruding wall 51a in the first end region in the first direction X. Additionally, the cover 13 may also have a protruding wall 51b in the second end region in the first direction X. The protruding wall 51a protrudes from the portion of the second surface 43 that is away from the exposed surface 43a in the first direction X. For example, the protruding wall 51a protrudes from the first end of the second surface 43 in the first direction X in a direction opposite to the third direction Z. Similarly, the protruding wall 51b protrudes from the portion of the second surface 43 that is away from the exposed surface 43a in a direction opposite to the first direction X. For example, the protruding wall 51b protrudes from the second end of the second surface 43 in the first direction X in a direction opposite to the third direction Z. The protruding walls 51a and 51b are integrally formed with the closing portion 41. The protruding walls 51a and 51b are, for example, formed as flat plates perpendicular to the first direction X.

[0065] The cover 13 may also have a fixing portion 52a protruding from the protruding wall 51a. Alternatively, the cover 13 may also have a fixing portion 52b protruding from the protruding wall 51b. The fixing portion 52a protrudes from the top end of the protruding wall 51a in a first direction X. The fixing portion 52a has a fixing hole 53a through which it passes in a third direction Z. The fixing portion 52b protrudes from the top end of the protruding wall 51b in a direction opposite to the first direction X. The fixing portion 52b has a fixing hole 53b through which it passes in a third direction Z.

[0066] The cover 13 may also have ribs 56a and 56b that protrude from the second surface 43 and are integrally formed with the protruding wall 51a. Alternatively, the cover 13 may also have ribs 56c and 56d that protrude from the second surface 43 and are integrally formed with the protruding wall 51b.

[0067] When viewed from the third direction Z, ribs 56a and 56b are located away from the exposed surface 43a in the first direction X. Rib 56a protrudes from its first end in the second direction Y of the second surface 43 in a direction opposite to the third direction Z. Rib 56b protrudes from its second end in the second direction Y of the second surface 43 in a direction opposite to the third direction Z. The first end of rib 56a and the first end of rib 56b in the first direction X are each connected to the protruding wall 51a. Ribs 56a and 56b are each, for example, formed as a flat plate perpendicular to the second direction Y. As ribs 56a and 56b move away from the protruding wall 51a in a direction opposite to the first direction X, the protrusion length of each rib protruding from the second surface 43 decreases.

[0068] When viewed from the third direction Z, ribs 56c and 56d are located away from the exposed surface 43a in a direction opposite to the first direction X. Rib 56c protrudes from its first end in the second direction Y of the second surface 43 in a direction opposite to the third direction Z. Rib 56d protrudes from its second end in the second direction Y of the second surface 43 in a direction opposite to the third direction Z. The second end of rib 56c in the first direction X and the second end of rib 56d in the first direction X are each connected to the protruding wall 51b. Ribs 56c and 56d are each, for example, formed as a flat plate perpendicular to the second direction Y. As ribs 56c and 56d move away from the protruding wall 51b along the first direction X, the protrusion length of each rib protruding from the second surface 43 decreases.

[0069] like Figure 2 and Figures 4-6As shown, the cover 13 may also have second guide portions 57a and 57b, which protrude from the portion of the second surface 43 that moves away from the exposed surface 43a in the first direction X and the portion of the second surface 43 that moves away from the exposed surface 43a in the opposite direction to the first direction X, respectively. The second guide portion 57a ​​protrudes from the portion of the non-opposing surface 43b that moves away from the exposed surface 43a in the first direction X in the opposite direction to the third direction Z. Furthermore, the second guide portion 57a ​​is positioned such that when the cover 13 is disposed on the housing 12, it can be inserted into the guide recess 35a in the direction opposite to the third direction Z. The second guide portion 57b protrudes from the portion of the non-opposing surface 43b that moves away from the exposed surface 43a in the opposite direction to the first direction X in the opposite direction to the third direction Z. Furthermore, the second guide portion 57b is positioned such that when the cover 13 is disposed on the housing 12, it can be inserted into the guide recess 35b in the direction opposite to the third direction Z.

[0070] The shape of the second guide portion 57a ​​is formed to correspond to the shape of the inner peripheral surface of the guide recess 35a. The cross-section of the second guide portion 57a, cut with a plane perpendicular to the third direction Z, is, for example, formed as a quadrilateral, the same as the cross-section of the guide recess 35a cut with a plane perpendicular to the third direction Z. Furthermore, the cross-sectional shape of the second guide portion 57a ​​cut with a plane perpendicular to the third direction Z is not limited to a quadrilateral, and may be appropriately modified according to the cross-sectional shape of the guide recess 35a cut with a plane perpendicular to the third direction Z.

[0071] The shape of the second guide portion 57b is formed to correspond to the shape of the inner peripheral surface of the guide recess 35b. The cross-section of the second guide portion 57b, cut with a plane perpendicular to the third direction Z, is, for example, formed as a quadrilateral, the same as the cross-section of the guide recess 35b cut with a plane perpendicular to the third direction Z. Furthermore, the cross-sectional shape of the second guide portion 57b cut with a plane perpendicular to the third direction Z is not limited to a quadrilateral, and may be appropriately modified according to the cross-sectional shape of the guide recess 35b cut with a plane perpendicular to the third direction Z.

[0072] The second guide portions 57a and 57b each extend along the second direction Y when viewed from the third direction Z, for example. Furthermore, the second guide portions 57a and 57b may each be formed as a flat plate perpendicular to the first direction X. However, the second guide portions 57a and 57b may not be strictly perpendicular to the first direction X.

[0073] The second guide portion 57a ​​engages with the first guide portion 34a by being inserted into the guide recess 35a in a direction opposite to the third direction Z when the cover 13 is disposed on the housing 12. The second guide portion 57b engages with the first guide portion 34b by being inserted into the guide recess 35b in a direction opposite to the third direction Z when the cover 13 is disposed on the housing 12. The second guide portions 57a and 57b, by engaging with the first guide portions 34a and 34b respectively, limit the relative misalignment of the housing 12 and the cover 13 in the first direction X and the second direction Y.

[0074] like Figures 4-6 As shown, the cover 13 may also have first reinforcing portions 58a and 58b, which extend from the second guide portions 57a and 57b to a first end of the cover 13 in the second direction Y on the second surface 43, respectively. Alternatively, the cover 13 may also have second reinforcing portions 59a and 59b, which extend from the second guide portions 57a and 57b to a second end of the cover 13 in the second direction Y on the second surface 43, respectively.

[0075] The first reinforcing portion 58a and the second reinforcing portion 59a protrude from the portion of the second surface 43 that is further away from the exposed surface 43a in the first direction X. That is, the first reinforcing portion 58a and the second reinforcing portion 59a protrude from the non-opposing surface 43b in a direction opposite to the third direction Z, further away from the exposed surface 43a in the first direction X. When viewed from the third direction Z, the first reinforcing portion 58a and the second reinforcing portion 59a each extend along the second direction Y. The first reinforcing portion 58a and the second reinforcing portion 59a are each formed, for example, as a flat plate perpendicular to the first direction X. Alternatively, the first reinforcing portion 58a and the second reinforcing portion 59a may not be strictly perpendicular to the first direction X. The second end of the first reinforcing portion 58a in the second direction Y is connected to the second guide portion 57a. The first end of the first reinforcing portion 58a in the second direction Y is connected to the rib wall 56a. Furthermore, the first end portion of the second reinforcing portion 59a in the second direction Y is connected to the second guide portion 57a. The second end portion of the second reinforcing portion 59a in the second direction Y is connected to the rib wall 56b.

[0076] The first reinforcing portion 58b and the second reinforcing portion 59b protrude from the portion of the second surface 43 that is away from the exposed surface 43a in a direction opposite to the first direction X. That is, the first reinforcing portion 58b and the second reinforcing portion 59b protrude from the portion of the non-opposing surface 43b that is away from the exposed surface 43a in a direction opposite to the first direction X in a direction opposite to the third direction Z. When viewed from the third direction Z, the first reinforcing portion 58b and the second reinforcing portion 59b each extend along the second direction Y. The first reinforcing portion 58b and the second reinforcing portion 59b are each formed, for example, as a flat plate perpendicular to the first direction X. However, the first reinforcing portion 58b and the second reinforcing portion 59b may not be strictly perpendicular to the first direction X. The second end of the first reinforcing portion 58b in the second direction Y is connected to the second guide portion 57b. The first end of the first reinforcing portion 58b in the second direction Y is connected to the rib wall 56c. Furthermore, the first end portion of the second reinforcing portion 59b in the second direction Y is connected to the second guide portion 57b. The second end portion of the second reinforcing portion 59b in the second direction Y is connected to the rib wall 56d.

[0077] Alternatively, the cover 13 may also have third reinforcing ribs 61a and 61b protruding from the second surface 43. The third reinforcing rib 61a extends from the second guide portion 57a ​​to the protruding wall 51a. The second end of the third reinforcing rib 61a in the first direction X is connected to the second guide portion 57a. The first end of the third reinforcing rib 61a in the first direction X is connected to the protruding wall 51a. The third reinforcing rib 61b extends from the second guide portion 57b to the protruding wall 51b. The first end of the third reinforcing rib 61b in the first direction X is connected to the second guide portion 57b. The second end of the third reinforcing rib 61b in the first direction X is connected to the protruding wall 51b. When viewed from the third direction Z, each of the third reinforcing ribs 61a and 61b extends along the first direction X. Each of the third reinforcing ribs 61a and 61b may, for example, be formed as a flat plate perpendicular to the second direction Y. Furthermore, the third reinforcing ribs 61a and 61b may not be strictly perpendicular to the second direction Y.

[0078] (Connection of connector 10 to terminal block) like Figure 2 and Figure 7 As shown, when connecting connector 10 to terminal block, the operator first places housing 12 on terminal block. At this time, cover 13 is not placed on housing 12, so opening 11 is not closed by cover 13. Then, the operator inserts a tool into housing 12 through opening 11 to electrically connect terminal 14 to the opposite terminal 9. Terminal 14 and opposite terminal 9 are electrically connected, for example, by a bolt passing through terminal 14 and opposite terminal 9 and a nut fastened to the bolt.

[0079] Next, as Figure 2 , Figure 6 and Figure 7As shown, the operator places the cover 13 onto the housing 12 to close the opening 11. The operator inserts the sealing portion 44 into the housing body 31 from the opening 11 while placing the cover 13 onto the housing 12. At this time, the guide recess 35a of the first guide portion 34a and the guide recess 35b of the first guide portion 34b are inserted into the second guide portion 57a ​​and the second guide portion 57b respectively in a direction opposite to the third direction Z. Thus, the cover 13 is positioned on the housing 12 in the first direction X, in a direction opposite to the first direction X, in the second direction Y, and in a direction opposite to the second direction Y. Furthermore, it is possible to prevent the cover 13 from being assembled onto the housing 12 in an inclined state. Specifically, it is possible to prevent the cover 13 from being assembled onto the housing 12 in a state where the axial direction of the sealing portion 44 is inclined relative to the axial direction of the housing body 31.

[0080] When the cover 13 is disposed on the housing 12, the sealing portion 44 engages with the inner side of the housing body 31. Furthermore, second reinforcing ribs 47 are respectively disposed between adjacent connecting portions 21 in the first direction X. Then, the operator uses bolts (not shown) inserted into fixing holes 53a and 53b to fix the cover 13 to the electrical equipment housing. Thus, the connection of the connector 10 to the terminal block is completed.

[0081] The function of this embodiment will be explained. When the pressure inside the enclosure increases due to heat generated by electrical equipment, the pressure acting on the cover 13 from the inside of the enclosure also increases. In this case, an external force acts on the cover 13, such as pressing the cover 13 from inside the enclosure toward the outside of the enclosure. Specifically, an external force acts on the cover 13, such as pushing the exposed surface 43a toward the outside of the enclosure, i.e., the outside of the housing 12. However, the cover 13 of this embodiment has a first reinforcing rib 45 protruding from the first surface 42 and a second reinforcing rib 47 protruding from the second surface 43. Furthermore, the first reinforcing rib 45 and the second reinforcing rib 47 extend in intersecting directions when viewed from the third direction Z. Therefore, the rigidity of the cover 13 is increased. Therefore, deformation of the cover 13 can be suppressed.

[0082] The effects of this implementation method will be explained. (1) The connector 10 comprises: a housing 12 having an opening 11; a cover 13 closing the opening 11; and a plurality of terminals 14 held in the housing 12. Each of the plurality of terminals 14 has a connection portion 21 electrically connected to a different counterpart terminal 9. The plurality of connection portions 21 are arranged in a row inside the housing 12. The cover 13 has: a first surface 42 exposed to the outside of the housing 12; and a second surface 43 including an exposed surface 43a exposed from the opening 11 to the inside of the housing 12 on the back side of the first surface 42. Further, the cover 13 has two first reinforcing ribs 45 protruding from the first surface 42 and two second reinforcing ribs 47 protruding from the second surface 43. The direction in which the plurality of connection portions 21 are arranged is defined as a first direction X, the direction intersecting the first direction X and the direction from the base end of the connection portion 21 toward the top end is defined as a second direction Y, and the direction perpendicular to the first direction X and perpendicular to the second direction Y is defined as a third direction Z. Each of the first reinforcing ribs 45 extends along the first direction X. Each of the second reinforcing ribs 47 extends along the second direction Y between adjacent connecting portions 21 when viewed from the third direction Z.

[0083] According to this structure, the cover 13 has a first reinforcing rib 45 and a second reinforcing rib 47 on the first surface 42 and the second surface 43 located on the back side of the first surface 42, respectively. Furthermore, the first reinforcing rib 45, protruding from the first surface 42, extends along a first direction X. The second reinforcing rib 47, protruding from the second surface 43, extends along a second direction Y, which intersects the first direction X. Therefore, compared to the case where reinforcing ribs are only present on either the first surface 42 or the second surface 43, or where the first and second reinforcing ribs extend in the same direction, the rigidity of the cover 13 can be improved. Therefore, when an external force is applied to the cover 13, deformation of the cover 13 can be suppressed.

[0084] Furthermore, because deformation of the cover 13 can be suppressed, the formation of a gap between the cover 13 and the housing 12 around the opening 11 can be prevented. As a result, even if the interior of the housing housing which houses the electrical equipment electrically connected to the connector 10 via the terminal block becomes hot, liquids such as water can be prevented from seeping into the interior of the housing 12. Furthermore, liquids such as water can be prevented from seeping into the interior of the housing.

[0085] (2) The cover 13 has a sealing portion 44, which, when viewed from the third direction Z, protrudes from the second surface 43 in such a way as to surround the exposed surface 43a and is embedded in the opening 11. The protruding length of each of the second reinforcing ribs 47 protruding from the second surface 43 is longer than the protruding length of the sealing portion 44 protruding from the second surface 43.

[0086] According to this structure, the rigidity of the cover 13 can also be improved by utilizing the sealing part 44. Therefore, deformation of the cover 13 can be better suppressed. In addition, since the sealing part 44 is embedded in the opening 11, the gap between the sealing part 44 and the inner periphery of the opening 11 can be further reduced. Therefore, it is easier to prevent liquids such as water from seeping into the interior of the housing 12 from the opening 11.

[0087] Furthermore, the cover 13 of this embodiment has a sealing member 44d, which seals the outer peripheral surfaces of the opposing sealing portions 44 with the housing 12. Therefore, the sealing member 44d can further suppress the infiltration of liquids such as water into the interior of the housing 12 from the opening 11.

[0088] (3) The cover 13 is a resin molded article. Regardless of whether it is viewed from the second direction Y or the third direction Z, a second reinforcing rib 47 is provided between the adjacent connecting parts 21 in the first direction X.

[0089] According to this structure, compared to the case where a second reinforcing rib 47 is provided between adjacent connecting portions 21 in the first direction X when viewed from the third direction Z, but not between adjacent connecting portions 21 in the first direction X when viewed from the second direction Y, the length of the second reinforcing rib 47 in the third direction Z can be increased. Therefore, the rigidity of the cover 13 can be further improved. As a result, deformation of the cover 13 can be further suppressed.

[0090] Furthermore, since the cover 13 is a resin molded product, it can be formed using a resin material with a lower conductivity than that of the terminal 14. For example, when the terminal 14 is connected to the opposite terminal 9, at least one of the connecting portion 21 and the opposite terminal 9 may be scraped, resulting in metal slag. In order to prevent short circuits between adjacent connecting portions 21 in the first direction X due to this metal slag, it is preferable to perform insulation treatment between adjacent connecting portions 21 in the first direction X. Therefore, when the cover 13 is a resin molded product using a resin material with a lower conductivity than that of the terminal 14, each of the second reinforcing ribs 47, which is part of the cover 13, can also be formed using a resin material with a lower conductivity than that of the terminal 14. Therefore, it is easy to make the conductivity of each second reinforcing rib 47 lower than that of the terminal 14. Therefore, electrical insulation between adjacent connecting portions 21 in the first direction X can be achieved using the second reinforcing ribs 47 located between the connecting portions 21. Therefore, it is not necessary to separately provide a structure for preventing short circuits between adjacent connecting portions 21 in the first direction X. As a result, the number of components constituting connector 10 can be reduced.

[0091] (4) The second surface 43 is wider than the exposed surface 43a in both directions along the first direction. The housing 12 has first guide portions 34a and 34b extending along the third direction Z at both ends in the first direction X. The cover 13 has second guide portions 57a and 57b, which protrude from two portions of the second surface 43 along the first direction X, respectively, located outside the exposed surface 43a. The second guide portions 57a and 57b respectively engage with the first guide portions 34a and 34b to restrict the relative misalignment of the housing 12 and the cover 13 in the first direction X and the second direction Y.

[0092] According to this structure, when the cover 13 is disposed on the housing 12, by making the first guide portions 34a, 34b and the second guide portions 57a, 57b respectively interlock, the cover 13 can be easily positioned on the housing 12 in the direction along the first direction X and in the direction along the second direction Y. Therefore, the cover 13 can be easily assembled onto the housing 12.

[0093] (5) The cover 13 has first reinforcing portions 58a and 58b, which extend from the second guide portions 57a and 57b to a first end portion in the second direction Y of the cover 13 on the second surface 43, respectively. Further, the cover 13 has second reinforcing portions 59a and 59b, which extend from the second guide portions 57a and 57b to a second end portion in the second direction Y of the cover 13 on the second surface 43, respectively.

[0094] According to this structure, the rigidity of the cover 13 can be further improved by utilizing the second guide portions 57a and 57b, the first reinforcing portions 58a and 58b, and the second reinforcing portions 59a and 59b. As a result, deformation of the cover 13 can be further suppressed.

[0095] (6) The cover 13 has a peripheral wall portion 46 that protrudes from the first surface 42 and extends along the periphery of the first surface 42. According to this structure, the rigidity of the cover 13 can be further improved by utilizing the peripheral wall portion 46. As a result, deformation of the cover 13 can be further suppressed.

[0096] (7) The peripheral wall portion 46 is formed as an annular ring along the periphery of the first surface 42. According to this structure, by forming the peripheral wall portion 46 as an annular ring, it is easier to improve the rigidity of the cover 13 compared to not forming the peripheral wall portion 46 as an annular ring. As a result, deformation of the cover 13 can be further suppressed.

[0097] (8) The cover 13 has a plurality of second reinforcing ribs 47. Furthermore, the cover 13 has at least one connecting rib 48 that connects adjacent second reinforcing ribs 47 in the first direction X. According to this structure, the strength of the second reinforcing ribs 47 can be increased. Therefore, the rigidity of the cover 13 can be further improved. As a result, deformation of the cover 13 can be further suppressed.

[0098] (9) The cover 13 has two first reinforcing ribs 45. According to this structure, the rigidity of the cover 13 is increased compared to the case where the cover 13 has only one first reinforcing rib 45. Furthermore, compared to the case where the cover 13 has three or more first reinforcing ribs 45, the complexity of the shape of the cover 13 can be suppressed. Further, compared to the case where the cover 13 has three or more first reinforcing ribs 45, the amount of material constituting the cover 13 can be reduced. Therefore, the manufacturing cost of the cover 13 can be reduced.

[0099] (10) In this embodiment, the cover 13 does not have a reinforcing rib extending along the first direction X on the exposed surface 43a. Furthermore, the second reinforcing rib 47 provided on the exposed surface 43a is positioned between adjacent connecting portions 21 in the first direction X when viewed from the third direction Z. Therefore, even if the distance between the exposed surface 43a and the connecting portion 21 in the third direction Z is shortened, the second reinforcing rib 47 does not contact the connecting portion 21 from a direction opposite to the third direction Z. Thus, the cover 13 does not have a reinforcing rib on the second surface 43 that could potentially contact the connecting portion 21 from a direction opposite to the third direction Z. Therefore, the enlargement of the connector 10 in the third direction Z can be suppressed, and a structure for improving the rigidity of the cover 13 can be provided on the second surface 43.

[0100] (11) The cover 13 of this embodiment is made of resin material. The cover 13 has a first reinforcing rib 45 and a second reinforcing rib, thereby increasing its rigidity even when made of resin material. Therefore, it is not necessary to add additional metal parts to suppress deformation of the cover 13, or the cover 13 can be made of metal. Therefore, the manufacturing cost of the connector 10 can be reduced.

[0101] (12) Each connecting rib 48 connects to the second end of each of the two adjacent second reinforcing ribs 47 in the second direction Y. When viewed from the third direction Z, the first end of the second reinforcing rib 47 in the second direction Y is the end closest to the top end of the connecting portion 21. Furthermore, when the cover 13 is correctly positioned on the housing 12, each connecting rib 48 is inserted between the inner circumferential surface of the housing 12 and the top end of the connecting portion 21. On the other hand, when the cover 13 is incorrectly positioned on the housing 12 with its orientation opposite to the first direction X, each connecting rib 48 contacts the terminal 14 near the base end of the connecting portion 21 in a direction opposite to the third direction Z. By each connecting rib 48 contacting the terminal 14, further movement of the cover 13 in a direction opposite to the third direction Z is prevented. Therefore, when the cover 13 is positioned in a position different from when it is correctly positioned on the housing 12, further movement in a direction opposite to the third direction Z is prevented. Therefore, the operator can identify when the cover 13 is incorrectly positioned on the housing 12. As a result, misassembly of the cover 13 relative to the housing 12 can be prevented.

[0102] This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other within the scope of technical non-contradiction. The number of connecting ribs 48 on cover 13 is not limited to one; it can also be multiple. For example, as... Figure 8 As shown in the first variation, the cover 13, in the case of having five second reinforcing ribs 47 arranged in the first direction X, may also have two connecting ribs 48, which connect the two second reinforcing ribs 47 on each side of the central second reinforcing rib 47 respectively. Furthermore, in Figure 8 In this document, structures identical to those in the above embodiments and their corresponding structural reference numerals are labeled with the same reference numerals.

[0103] Alternatively, the connecting rib 48 may protrude from the top surface of the side wall portion 44b. Furthermore, if the cover 13 does not have a sealing portion 44, the connecting rib 48 may protrude from the second surface 43 and connect with adjacent second reinforcing ribs 47 in the first direction X. Alternatively, the cover 13 may not have the connecting rib 48.

[0104] The auxiliary rib 49 may also be integrally formed with at least one second reinforcing rib 47. For example, at least one of the plurality of second reinforcing ribs 47 may not be integrally formed with the auxiliary rib 49. Furthermore, the auxiliary rib 49 may be integrally formed with either the first end of the second reinforcing rib 47 in the second direction Y or the second end of the second reinforcing rib 47 in the second direction Y. Additionally, the cover 13 may not have the auxiliary rib 49.

[0105] • The peripheral wall portion 46 may not be annular. That is, the peripheral wall portion 46 may protrude from the first surface 42 and be provided along a portion of the periphery of the first surface 42. The shape of the peripheral wall portion 46 is not limited to the shape described in the above embodiment. The peripheral wall portion 46 extends along the periphery of the first surface 42, so the shape of the peripheral wall portion 46 viewed from the third direction Z can also be deformed according to the shape of the first surface 42. In addition, the cover 13 may not have the peripheral wall portion 46.

[0106] • The cover 13 may also have only one of the first reinforcing parts 58a and 58b. Alternatively, the cover 13 may not have the first reinforcing parts 58a and 58b. Alternatively, the cover 13 may have only one of the second reinforcing parts 59a and 59b. Alternatively, the cover 13 may not have the second reinforcing parts 59a and 59b.

[0107] In the above embodiment, the first guide portions 34a and 34b each have guide recesses 35a and 35b. Furthermore, the second guide portions 57a and 57b are respectively embedded in the guide recesses 35a and 35b. However, the second guide portions 57a and 57b may also each have a guide recess, with the first guide portions 34a and 34b embedded within the guide recess.

[0108] The cover 13 may also include only the first guide portion 34a and the second guide portion 57a, of the first guide portions 34a and 34b and the second guide portions 57a and 57b. Alternatively, the cover 13 may include only the first guide portion 34b and the second guide portion 57b, of the first guide portions 34a and 34b and the second guide portions 57a and 57b. Furthermore, the cover 13 may not include the first guide portions 34a and 34b and the second guide portions 57a and 57b.

[0109] • The protruding length of the second reinforcing rib 47 protruding from the second surface 43 may also be shorter than the protruding length of the connecting surface 23 protruding from the second surface 43. • The cover 13 may not necessarily have a sealing member 44d. Alternatively, the cover 13 may not necessarily have a sealing part 44.

[0110] The shape of the cover 13 is not limited to the shape described in the above embodiment, as long as it has at least one first reinforcing rib 45 and at least one second reinforcing rib 47. For example, the shapes of the protruding walls 51a, 51b, fixing portions 52a, 52b, and rib walls 56a to 56d can be changed. In addition, the cover 13 may further have reinforcing ribs that protrude from the exposed surface 43a and extend along the first direction X. In this case, the length of the reinforcing rib in the third direction Z is set to a length that does not contact the connecting portion 21.

[0111] In addition, for example Figure 9 and Figure 10 The cover 13A of the second variant example further includes a protrusion 71. Furthermore, in Figure 9 and Figure 10 In this document, structures that are the same as or correspond to those described in the above embodiments are marked with the same reference numerals.

[0112] like Figure 9 and Figure 10 As shown, at least one of the first end face 72 and the second end face 73 of the cover 13A in the second direction Y includes an outwardly extending portion 74 along the first direction X. For example, both end face 72 and end face 73 include an outwardly extending portion 74. The outwardly extending portion 74 included in end face 72 is designated as outwardly extending portion 74a, and the outwardly extending portion 74 included in end face 73 is designated as outwardly extending portion 74b. For example, outwardly extending portions 74a and 74b are each formed as a plane perpendicular to the second direction Y. Furthermore, for example, outwardly extending portions 74a and 74b are parallel.

[0113] The cover 13A has a protrusion 71 that protrudes outward from the outside 74a in the second direction Y. The protrusion 71 is located, for example, in the second end region of the cover 13A in the first direction X. In addition, the tip of the protrusion 71 in the protruding direction, that is, the tip of the protrusion 71 in the second direction Y, is located on the outer periphery of the cover 13A when viewed from the third direction Z, which is closer than the sealing member 44d.

[0114] In this case, when the cover 13A is placed on the surface S1 of the ground or floor, without being assembled to the housing 12, the cover 13A sometimes becomes a position in which the protrusion 71 protrudes outward 74a and faces the surface S1. Figure 10 The cover 13A is shown in a configuration where the outer surface 74a faces the surface S1, such as the ground or floor. In this configuration, the cover 13A is positioned on the surface S1 with a gap formed between the outer surface 74a and the surface S1 by the protrusion 71. That is, the cover 13A is positioned on the surface S1 with a portion lifted by the protrusion 71. Therefore, the sealing portion 44 is easily positioned upwards from the surface S1. Thus, the contact between the sealing member 44d located on the outer peripheral surface of the sealing portion 44 and the surface S1 can be suppressed. As a result, foreign matter such as sand and dust on the surface S1 can be prevented from adhering to the sealing member 44d. Therefore, when the cover 13A is assembled to the housing 12, foreign matter can be prevented from being between the sealing member 44d and the housing 12. As a result, the sealing member 44d can fit well with the housing 12. Therefore, the sealing member 44d can fully exert its sealing performance.

[0115] Furthermore, the protrusion 71 is provided only on the outward-facing 74a of the two outward-facing 74a and 74b. Therefore, when the operator assembles the cover 13A onto the housing 12, the protrusion 71 serves as a marker for determining the orientation of the cover 13A relative to the housing 12. This prevents the cover 13A from being assembled onto the housing 12 in an incorrect posture. In addition, the workability of assembling the cover 13A onto the housing 12 is improved.

[0116] Furthermore, the cover 13A may also have at least one protrusion 71 projecting from the outward 74b in a direction opposite to the second direction Y. In this case, the cover 13A may or may not have at least one protrusion 71 facing outward 74a.

[0117] In addition, Figure 9 and Figure 10 In the illustrated cover 13A, the fixing part 52a protrudes from the top end of the protruding wall 51a in a first direction X. On the other hand, when viewed from a third direction Z, the fixing part 52b protrudes from the top end of the protruding wall 51b in a direction intersecting the first direction X. When viewed from the third direction Z, the top end of the fixing part 52b is, for example, located at a position further away from the top end of the fixing part 52a in a second direction Y.

[0118] In addition, such as Figure 10 As shown, when viewed from the third direction, the positions of the fixing holes 53a and 53b of the fixing part 52a and the fixing part 52b in the second direction Y can also be staggered. Figure 10 In the diagram, a centerline L1, which passes through the center between the outward-facing 74a and outward-facing 74b in the second direction Y and extends parallel to the first direction X when viewed from the third direction Z, is illustrated by a dashed line. When viewed from the third direction Z, the center of the fixing hole 53a is, for example, located on the centerline L1. On the other hand, when viewed from the third direction Z, the center of the fixing hole 53b is, for example, located at a position further away from the centerline L1 in the second direction Y.

[0119] In addition, such as Figure 9 and Figure 10 As shown, the cover 13A may also have fixing ribs 75a and 75b protruding from fixing parts 52a and 52b respectively. The fixing rib 75a protrudes from the fixing portion 52a in the third direction Z. The fixing rib 75a, for example, has peripheral ribs 76a and 76b and a connecting portion 77a. The peripheral rib 76a extends along a first end in the second direction Y of the fixing portion 52a. The peripheral rib 76b extends along a second end in the second direction Y of the fixing portion 52a. The second ends of each of the peripheral ribs 76a and 76b in the first direction X are connected to the protruding wall 51a. As the peripheral ribs 76a and 76b move away from the protruding wall 51a along the first direction X, the protrusion length of each of the peripheral ribs 76a and 76b protruding from the fixing portion 52a decreases.

[0120] The connecting portion 77a protrudes from the fixing portion 52a in the third direction Z. The connecting portion 77a connects peripheral ribs 76a and 76b on the first end face of the fixing portion 52a in the third direction Z. When viewed from the third direction Z, the connecting portion 77a is located between the protruding wall 51a and the fixing hole 53a. The shape of the connecting portion 77a when viewed from the third direction Z is, for example, an arc shape. Furthermore, as long as the connecting portion 77a connects the peripheral ribs 76a and 76b, its shape when viewed from the third direction Z can be any shape other than an arc shape. The shape of the connecting portion 77a when viewed from the third direction Z can also be, for example, a straight line, a bent shape, an arbitrary curve, or any other shape.

[0121] The fixing rib 75b protrudes from the fixing portion 52b in the third direction Z. The fixing rib 75b, for example, has peripheral ribs 76c and 76d and a connecting portion 77b. The peripheral rib 76c extends along its first end in the second direction Y of the fixing portion 52b. The peripheral rib 76d extends along its second end in the second direction Y of the fixing portion 52b. The first ends of each of the peripheral ribs 76c and 76d in the first direction X are connected to the protruding wall 51b. As the peripheral ribs 76c and 76d move away from the protruding wall 51b in a direction opposite to the first direction X, the protrusion length of each of the peripheral ribs 76c and 76d protruding from the fixing portion 52b decreases.

[0122] The connecting portion 77b protrudes from the fixing portion 52b in the third direction Z. The connecting portion 77b connects peripheral ribs 76c and 76d on its first end face in the third direction Z of the fixing portion 52b. When viewed from the third direction Z, the connecting portion 77b is located between the protruding wall 51b and the fixing hole 53b. The shape of the connecting portion 77b when viewed from the third direction Z is, for example, an arc shape. Furthermore, as long as the connecting portion 77b connects the peripheral ribs 76c and 76d, its shape when viewed from the third direction Z can also be other than an arc shape. The shape of the connecting portion 77b when viewed from the third direction Z can also be any shape, such as a straight line, a bent shape, or an arbitrary curve.

[0123] In this way, by utilizing the fixing ribs 75a and 75b, the rigidity near the fixing parts 52a and 52b in the cover 13A can be improved. Therefore, when an external force is applied to the cover 13A, deformation of the cover 13A can be more effectively suppressed.

[0124] Incidentally, in Figure 9 and Figure 10 In the illustrated cover 13A, as described above, when viewed from the third direction Z, the positions of the fixing holes 53a and 53b are offset towards the second direction Y. Therefore, when an external force, such as pushing the exposed surface 43a towards the outside of the housing 12, is applied to the cover 13A, the cover 13A may be more prone to stress concentration compared to a cover where the positions of the fixing holes 53a and 53b when viewed from the third direction Z are not offset towards the second direction Y. For example, in the cover 13A, stress may concentrate on either the fixing portion 52a with the fixing hole 53a or the fixing portion 52b with the fixing hole 53b. However, by using the fixing portion ribs 75a and 75b, the rigidity of the fixing portions 52a and 52b and the area near the fixing portions 52a and 52b in the cover 13A can be improved. Therefore, even if the positions of the fixing holes 53a and 53b are offset towards the second direction Y when viewed from the third direction Z, deformation of the cover 13A can be suppressed when an external force is applied to the cover 13A.

[0125] In addition, the cover 13A may have only the fixing rib 75a or only the fixing rib 75b. in addition, Figure 9 and Figure 10 The illustrated cap 13A is formed by injection molding. The cap 13A has a gate mark 78 on its first surface 42. The gate mark 78 is designed so that the gate is located on the first surface 42 during injection molding of the cap 13A. When viewed from the third direction Z, the gate mark 78 is located offset from the first reinforcing rib 45 in the second direction Y. Furthermore, when viewed from the third direction Z, the gate mark 78 is located not alongside the first reinforcing rib 45 in the first direction X. For example, the gate mark 78 is located between two first reinforcing ribs 45 when viewed from the third direction Z. Alternatively, the gate mark 78 may be located between either of the two first reinforcing ribs 45 and a portion of the peripheral wall portion 46 adjacent to that first reinforcing rib 45 in the second direction Y when viewed from the third direction Z.

[0126] In this way, the gate mark 78 is located away from the first reinforcing rib 45. Therefore, each of the first reinforcing ribs 45 can extend continuously from its first end in the first direction X of the first surface 42 to its second end in the first direction X of the first surface 42. Therefore, compared with the case where the first reinforcing rib is divided into multiple parts in the first direction X, the rigidity of the cover 13A can be improved.

[0127] • The housing 12 is not limited to the shape described in the above embodiment as long as it has an opening 11 and can retain the shape of the terminal 14. In the above embodiment, the first direction X is the direction from the connecting portion 21a toward the connecting portion 21c. However, the direction from the connecting portion 21c toward the connecting portion 21a can also be set as the first direction X. Furthermore, in the above embodiment, the second direction Y intersects the first direction X perpendicularly. However, the angle at which the second direction Y and the first direction X intersect can be appropriately modified according to the shape of the connecting portion 21. Additionally, the third direction Z can be any direction that intersects both the first direction X and the second direction Y perpendicularly, and can be a direction different from the one described in the above embodiment.

[0128] This disclosure includes the following methods. Reference numerals are used in the accompanying drawings to indicate several constituent elements of the illustrated embodiments, rather than for limitation, as aids in understanding. Some of the items described in the following methods may be omitted, or several items described in the methods may be selected or combined.

[0129] [Note 1] The connector (10) of several embodiments of this disclosure may also be, having: Terminal (14) is a plurality of terminals (14) arranged in parallel, each terminal (14) having a connection part (21) configured to electrically connect with the opposite terminal (9); A connector housing (12) holds the plurality of terminals (14), defines a storage space for accommodating the plurality of parallel connecting portions (21), and an opening (11) communicating with the storage space; and Cover (13) to close the opening (11). The cover (13) has: The first surface (42) is located on the side opposite to the connector housing (12); At least one first reinforcing rib (45) extends along the long side of the cover (13) in the first surface (42); The second side (43) covers the storage space; and At least one second reinforcing rib (47) extends along the connecting portion (21) in the second surface (43).

[0130] [Note 2] In several installation examples, each of the second reinforcing ribs (47) may protrude in the opposite direction to the first reinforcing rib (45). [Note 3] In several installation examples, each of the second reinforcing ribs (47) may extend in a direction different from that of the first reinforcing rib (45).

[0131] [Note 4] In several installation examples, the cover (13) may also have a sealing portion (44) that protrudes from the second surface (43) in a manner that extends along the opening (11).

[0132] [Note 5] In several installation examples, the first surface (42) may also be the opposite side of the second surface (43). [Note 6] In several installation examples, the second reinforcing rib (47) may also intersect with the sealing part (44).

[0133] [Note 7] In several installation examples, the cover (13) may also have a plurality of first reinforcing ribs (45) that are parallel to each other. [Note 8] In several installation examples, the cover (13) may also have a plurality of parallel second reinforcing ribs (47).

[0134] [Note 9] In several installation examples, the plurality of second reinforcing ribs (47) may also be configured to divide the storage space. Explanation of reference numerals in the attached figures

[0135] 9. Counterside terminal 10 Connectors 11. Opening 12 Connector Housing (Housing) 13, 13A cover 14 terminals 21, 21a~21c connecting parts 22 Terminal body 23 Connecting Surface 25 wires 31. Main body of the shell 32 Insert into the opening 33 Wire holding part 34a, 34b First guiding section 35a, 35b guide recesses 41 Enclosed Section 42 Page 1 43 Page 2 43a Exposed 43b Non-opposite surface 44 Sealing section 44a, 44b sidewalls 44c Sealing groove 44d sealing component 45 First reinforcing rib 46-week wall 47 Second reinforcing rib 48 Connecting Ribs 49 Auxiliary ribs 51a, 51b protruding walls 52a, 52b Fixing parts 53a, 53b fixing holes 56a~56d rib walls 57a, 57b, Second Guide Section 58a, 58b First Reinforcement Section 59a, 59b, Second Reinforcement Section 61a, 61b Third reinforcing rib 71 protrusions 72 and 73 end faces 74, 74a, and 74b face outwards. 75a, 75b Fixing Ribs 76a~76d peripheral ribs 77a, 77b connecting parts 78 Gate Marks Distances of D1, D2, and D3 L1 centerline S 1 side X-direction 1 Y 2nd direction Z-direction 3

Claims

1. A connector comprising: Connector housing with an opening; The cover, to close the opening; and Multiple terminals are held in the connector housing. Each of the plurality of terminals has a connection portion that is electrically connected to a different counterpart terminal. The plurality of the connecting parts are arranged in a row inside the connector housing. The cover has: a first surface exposed to the outside of the connector housing; and a second surface including an exposed surface on the back side of the first surface that protrudes from the opening toward the inside of the connector housing; at least one first reinforcing rib protruding from the first surface; and at least one second reinforcing rib protruding from the second surface. When the direction in which the plurality of connecting parts are arranged is designated as the first direction, the direction intersecting the first direction and extending from the base end of the connecting part towards its top end is designated as the second direction, and the direction perpendicular to both the first and second directions is designated as the third direction, The first reinforcing rib extends along the first direction. When viewed from the third direction, the second reinforcing rib extends along the second direction between adjacent connecting portions. The first reinforcing rib extends continuously from a first end in a first direction of the first surface to a second end in the first direction of the first surface. The second surface includes portions that are larger than the exposed surface in two directions along the first direction. The connector housing has two first guide portions extending along the third direction at each end of the connector housing in the first direction. The cover has two second guide portions, which protrude from two portions of the second surface along the first direction, respectively, located on the outer side of the exposed surface. The two second guide portions respectively engage with the two first guide portions to restrict the relative misalignment of the connector housing and the cover in the first and second directions. The cover has at least one of two first reinforcing portions and two second reinforcing portions, the two first reinforcing portions extending from the two second guiding portions to a first end of the cover in a second direction on the second surface, and the two second reinforcing portions extending from the two second guiding portions to a second end of the cover in the second direction on the second surface. The cover has two third reinforcing ribs, which extend from the two second guide portions to two opposite ends of the cover in the first direction on the second surface.

2. The connector according to claim 1, wherein, The cover has a sealing portion that, when viewed from the third direction, protrudes from the second surface in a manner that surrounds the exposed surface and is embedded in the opening. At least one of the second reinforcing ribs has a longer protrusion length from the second surface than the protrusion length of the sealing portion from the second surface.

3. The connector according to claim 1, wherein, The cover is a resin molded product. Regardless of whether the view is taken from the second or third direction, the second reinforcing ribs are respectively provided between the adjacent connecting portions in the first direction.

4. The connector according to claim 1, wherein, The cover has a peripheral wall portion that protrudes from the first surface and extends along the periphery of the first surface.

5. The connector according to claim 4, wherein, The peripheral wall portion is formed as a ring along the periphery of the first surface.

6. The connector according to claim 1, wherein, The at least one second reinforcing rib includes a plurality of second reinforcing ribs. The cover has at least one connecting rib that connects the second reinforcing ribs adjacent to each other in the first direction.

7. The connector according to claim 1, wherein, The cover has two of the first reinforcing ribs.

8. The connector according to any one of claims 1 to 7, wherein, At least one of the two end faces of the cover in the second direction includes an outwardly extending portion along the first direction. The cover has: a sealing portion that, when viewed from the third direction, protrudes from the second surface in a manner that surrounds the exposed surface and is embedded in the opening; an annular sealing member that seals the outer peripheral surfaces of the opposing sealing portions between the connector housing; and a protrusion that protrudes from at least one of the outward directions in the second direction or in a direction opposite to the second direction.

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