Connector and connector assembly

Abstract

To provide a connector and a connector assembly which allow improvement in assembly workability.SOLUTION: A first connector 10 has: a first terminal 30; a first housing 40 which holds the first terminal 30; and a working hole 51X which penetrates the first housing 40 in a first direction X1, and from which the first terminal 30 is exposed. The first connector 10 has a service cover 90 which is fitted to the first housing 40. The service cover 90 is provided so as to be movable between a first position for exposing the working hole 51X and a second position for closing the working hole 51X, when fitted to the first housing 40. The first housing 40 has: a support shaft 61; and a first guide part 62 which guides the service cover 90 when it moves in a circular motion around the support shaft 61. The service cover 90 has a bearing hole 94 into which the support shaft 61 is inserted. The service cover 90 is provided so as to be movable in the circular motion between the first position and the second position.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to a connector and a connector assembly.

Background Art

[0002] Conventionally, a vehicle is equipped with a connector assembly including a first connector attached to an end of an electric wire, a second connector attached to a case of an electric device and electrically connected to the first connector, and a service cover (see, for example, Patent Document 1). The first connector has a first terminal connected to an end of the electric wire and a first housing holding the first terminal. The second connector has a second terminal and a second housing holding the second terminal. The service cover is attached to the first housing so as to close a work hole of the first housing.

[0003] When connecting the first connector and the second connector, first, the first housing is fitted to the second housing, and a first bolt hole provided in the first terminal and a second bolt hole provided in the second terminal are overlapped. Subsequently, a bolt is inserted into the inside of the first housing through the work hole of the first housing, and the bolt is passed through the first bolt hole and the second bolt hole. Next, by screwing the bolt into a nut, the first terminal and the second terminal are electrically connected to each other by bolt fastening. Thereafter, the service cover is attached to the first housing so as to close the work hole of the first housing.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Incidentally, in the above connector assembly, improvement in assembly workability is desired. An object of the present disclosure is to provide a connector and a connector assembly capable of improving assembly workability.

Means for Solving the Problems

[0006] The connector of the present disclosure includes a first terminal, a first housing that holds the first terminal, a work hole that penetrates the first housing in a first direction and exposes the first terminal, and a service cover that is attached to the first housing and can close the work hole. The service cover is provided so as to be movable between a first position where the work hole is exposed and a second position where the work hole is closed in a state of being attached to the first housing. The first housing has a support shaft and a first guide portion that guides the service cover when the service cover moves in a circular motion around the support shaft. The service cover has a bearing hole into which the support shaft is inserted, and the service cover is provided so as to be capable of the circular motion between the first position and the second position.

Effects of the Invention

[0007] According to the connector and the connector assembly of the present disclosure, there is an effect that assembly workability can be improved.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

[0009] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described. [1] The connector of the present disclosure includes a first terminal, a first housing that holds the first terminal, a working hole that penetrates the first housing in a first direction and exposes the first terminal, and a service cover that is attached to the first housing and can close the working hole. The service cover is movably provided between a first position where the working hole is exposed and a second position where the working hole is closed in a state of being attached to the first housing. The first housing has a support shaft and a first guide portion that guides the service cover when the service cover moves in a circular motion around the support shaft. The service cover has a bearing hole into which the support shaft is inserted, and the service cover is provided so as to be capable of the circular motion between the first position and the second position.

[0010] According to this configuration, the service cover is attached to the first housing so as to be movable between a first position where the working hole is exposed and a second position where the working hole is closed in a state of being attached to the first housing. Therefore, before the mating connector is connected to the connector, the service cover can be attached to the first housing in advance. Thus, when connecting the connector and the mating connector, the working hole can be closed by using the service cover pre-attached to the first housing. As a result, when closing the working hole, the operation of attaching a service cover prepared separately from the connector and the mating connector to the connector can be omitted. Thereby, the assembly workability of the connector assembly can be improved. In particular, it is effective when automating the connection work between the connector and the mating connector. Specifically, since the number of parts added to the production line during the assembly work of the connector assembly can be reduced, the assembly process of the connector assembly can be easily automated.

[0011] Further, the first housing is provided with a support shaft and a first guide portion that guides the service cover when the service cover moves in a circular motion about the support shaft. Therefore, when the service cover moves in a circular motion about the support shaft of the first housing, the service cover is guided by the first guide portion of the first housing. As a result, when the service cover is moved in a circular motion between the first position and the second position, the service cover can be moved in a stable state.

[0012] [2] In the above [1], when the service cover is attached to the first housing, the service cover is movably provided at the first position, the second position, and a third position that is a position facing in a first opposite direction that is the opposite direction of the first direction from the second position, the service cover is provided so as to be capable of the circular motion from the first position to the third position, and the service cover may be provided so as to be slidable along the first direction from the third position to the second position.

[0013] According to this configuration, the service cover can be moved in a circular motion from the first position to the third position and can be translated along the first direction from the third position to the second position. As a result, the service cover can be moved from the first position to the second position by combining the circular motion and the translation. Therefore, the occurrence of stick-slip can be suppressed as compared with the case where the service cover is moved from the first position to the second position using only translation.

[0014] [3] In the above [2], the first housing may further have a second guide portion that guides the service cover when the service cover slides along the first direction.

[0015] According to this configuration, when the service cover slides along the first direction, the service cover is guided by the second guide portion of the first housing. As a result, when the service cover is slid along the first direction between the third position and the second position, the service cover can be moved in a stable state.

[0016] [4] In any one of the above [1] to [3], the first housing further has an engaging portion engageable with the bearing hole, and the engaging portion may be engaged with the bearing hole in a state where the service cover is disposed at the second position.

[0017] According to this configuration, when the service cover is disposed at the second position, the engaging portion of the first housing and the bearing hole of the service cover are engaged with each other. Thereby, the state where the service cover is disposed at the second position, that is, the state where the working hole is closed by the service cover can be preferably maintained.

[0018] [5] In any one of the above [1] to [4], the first housing may further have a supporting portion for supporting the service cover disposed at the first position. According to this configuration, the posture of the service cover disposed at the first position can be preferably maintained by the supporting portion provided on the first housing.

[0019] [6] In any one of the above [1] to [5], the first housing has a cylindrical portion protruding outward from the outer peripheral surface of the first housing and communicating with the working hole, the connector has a sealing member attached to the outer peripheral surface of the cylindrical portion, the service cover has a main body portion for closing the working hole and a fitting cylindrical portion protruding from the main body portion in the first direction, and the fitting cylindrical portion is provided so as to be fitted outside the cylindrical portion in a state where the service cover is disposed at the second position, and the sealing member may seal between the outer peripheral surface of the cylindrical portion and the inner peripheral surface of the fitting cylindrical portion.

[0020] According to this configuration, when the service cover is disposed at the second position, the cylindrical portion of the first housing and the seal member attached to the outer peripheral surface of the cylindrical portion are fitted inside the fitting cylindrical portion of the service cover. Therefore, when the service cover is disposed at the second position, the seal member can seal between the inner peripheral surface of the fitting cylindrical portion and the outer peripheral surface of the cylindrical portion. Thereby, it is possible to preferably suppress liquid such as water from entering the inside of the first housing through the gap between the inner peripheral surface of the fitting cylindrical portion and the outer peripheral surface of the cylindrical portion.

[0021] [7] In the above [6], a cylindrical seal holder is attached inside the cylindrical portion. The seal holder covers an end surface of the cylindrical portion in a first opposite direction which is a direction opposite to the first direction, and has a protruding portion protruding outward from the outer peripheral surface of the cylindrical portion. The seal member is provided between the outer peripheral surface of the first housing and the protruding portion in the first direction, and the protruding portion may be engageable with the seal member.

[0022] According to this configuration, the movement of the seal member in the first opposite direction is restricted by the protruding portion of the seal holder. Thereby, it is possible to preferably suppress the seal member from coming off from the cylindrical portion. [8] In the above [6] or [7], the service cover has a frame body protruding from the main body portion in the first direction, and a protruding piece protruding from the tip portion of the frame body in a direction orthogonal to the first direction. The bearing hole is provided in the frame body, and the protruding piece may be guided by the first guide portion when the service cover performs circular motion.

[0023] According to this configuration, when the service cover performs circular motion about the support shaft of the first housing, the protruding piece of the service cover is guided by the first guide portion of the first housing. Thereby, when the service cover is moved in a circular motion between the first position and the second position, the service cover can be moved in a stable state.

[0024] [9] The connector assembly of the present disclosure includes a first connector that is the connector described in any one of [1] to [8] above, and a second connector connected to the first connector. The second connector has a second terminal connected to the first terminal, and a second housing that holds the second terminal and is fitted to the first housing.

[0025] According to this configuration, the same effects as those of the connector of [1] above can be obtained. [Details of Embodiments of the Present Disclosure] Specific examples of the connector and the connector assembly of the present disclosure will be described below with reference to the drawings. In each drawing, for convenience of explanation, a part of the configuration may be exaggerated or simplified. Also, the dimensional ratios of each part may be different in each drawing. In this specification, "orthogonal", "parallel", and "perpendicular" include not only the cases of strict orthogonality, parallelism, and perpendicularity, but also the cases that are generally orthogonal, parallel, and perpendicular within the scope where the effects of this embodiment are achieved. The "cylindrical" used in the description of this specification includes not only those in which a circumferential wall is continuously formed over the entire circumference in the circumferential direction, but also those in which a plurality of parts are combined to form a cylindrical shape, and those having a notch or the like in a part of the circumferential direction such as a C shape or a U shape. The shape of the "cylindrical" includes, but is not limited to, circular, elliptical, and polygonal shapes having sharp or rounded corners. Also, the terms "first", "second", "third", etc. in this specification are merely used to distinguish objects and do not rank the objects. Each drawing shows an X-axis, a Y-axis, and a Z-axis that are orthogonal to each other. Each drawing shows a first direction X1 that is a direction along the X-axis in one direction, and a first opposite direction X2 that is the opposite direction of the first direction X1. Each drawing shows a second direction Y1 that is a direction along the Y-axis in one direction, and a second opposite direction Y2 that is the opposite direction of the second direction Y1. Each drawing shows a third direction Z1 that is a direction along the Z-axis in one direction, and a third opposite direction Z2 that is the opposite direction of the third direction Z1. It should be noted that the present invention is not limited to these examples, and is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0026] (Overall Structure of the Connector Assembly 1) As shown in FIGS. 1 to 3, the connector assembly 1 includes a first connector 10 and a second connector 200 electrically connected to the first connector 10. The connector assembly 1 is, for example, for electrically connecting electrical devices for vehicles. Examples of electrical devices for vehicles include a high-voltage battery, an inverter, a motor, and a relay box. The first connector 10 is configured to be detachable from the second connector 200, which is a mating connector. The second connector 200 is mounted on an attachment target such as a case of an electrical device (not shown). That is, the second connector 200 is a connector for the device.

[0027] As shown in FIG. 4, the first connector 10 has one or more (two in this embodiment) first terminals 30 each connected to an end of one or more (two in this embodiment) electric wires 20, and a first housing 40 that holds the first terminals 30. The first connector 10 has, for example, a retainer 75, a fitting detection member 80 attached to the first housing 40, and a service cover 90 attached to the first housing 40.

[0028] As shown in FIG. 2, the second connector 200 has one or more (two in this embodiment) second terminals 210 and a second housing 220 that holds the second terminals 210. The first connector 10 and the second connector 200 are assembled to each other along the first direction X1. For example, the first housing 40 of the first connector 10 is fitted to the second housing 220 of the second connector 200 along the first direction X1. Note that the directions in each drawing do not necessarily represent the postures of the first connector 10 and the second connector 200 during use. Also, the description of the directions in the second connector 200 is based on the state where the second connector 200 is assembled to the first connector 10.

[0029] (Specific Structure of the Second Connector 200) The two second terminals 210 are provided side by side, for example, along the third direction Z1. The two second terminals 210 are integrally formed with the second housing 220 by insert molding, for example. Each second terminal 210 is formed in a columnar shape, for example.

[0030] As shown in FIG. 5, each second terminal 210 extends along the first direction X1. Each second terminal 210 has a bolt hole 211 into which a bolt 35 is inserted. The bolt hole 211 is formed to be recessed from the end face of each second terminal 210 in the first opposite direction X2 toward the first direction X1, for example. The bolt hole 211 does not penetrate the second terminal 210 and has a bottom surface. As the material of each second terminal 210, for example, a metal material such as a copper-based or aluminum-based material can be used.

[0031] As shown in FIG. 2, the second housing 220 has a fitting cylinder portion 221, a terminal holding portion 222, and a fixing portion 223. In the second housing 220, the fitting cylinder portion 221, the terminal holding portion 222, and the fixing portion 223 are continuously formed integrally. The second housing 220 is made of synthetic resin, for example.

[0032] The fitting cylinder portion 221 is fitted inside the first housing 40, for example. The fitting cylinder portion 221 is formed in a cylindrical shape extending in the X-axis direction. The fitting cylinder portion 221 is formed in a flat shape that is longer in the Z-axis direction than in the Y-axis direction, for example. The fitting cylinder portion 221 has a bottom wall that closes the opening in the first direction X1, for example.

[0033] The second housing 220 has a plurality (two in this embodiment) of terminal holding portions 222 arranged side by side in the third direction Z1, for example. Each terminal holding portion 222 is formed in a cylindrical shape, for example. Each terminal holding portion 222 is formed to surround the outer periphery of the second terminal 210. Each terminal holding portion 222 surrounds the outer periphery of the second terminal 210 over the entire circumferential direction, for example.

[0034] The fixing portion 223 is formed so as to project radially outward from the outer peripheral surface of the fitting cylinder portion 221 toward the outside in the radial direction of the fitting cylinder portion 221. The fixing portion 223 is formed, for example, so as to project radially outward over the entire circumference in the circumferential direction of the fitting cylinder portion 221. The fixing portion 223 is formed, for example, so as to project outward in a plate shape from the outer peripheral surface at the end portion of the fitting cylinder portion 221 in the first direction X1. The fixing portion 223 is fixed, for example, to the outer surface of the case of an electric device (not shown).

[0035] (Configuration of the electric wire 20) As shown in FIG. 4, each electric wire 20 has a conductive core wire 21 and an insulating coating 22 that surrounds the outer periphery of the core wire 21 and has insulating properties. As the core wire 21, for example, a stranded wire formed by twisting a plurality of metal strands or a single-core wire made of a single conductor can be used. The core wire 21 of the present embodiment is a single-core wire. As the material of the core wire 21, for example, a metal material such as a copper-based or aluminum-based material can be used.

[0036] The insulating coating 22 covers, for example, the outer peripheral surface of the core wire 21 over the entire circumference in the circumferential direction. The insulating coating 22 is formed of, for example, a resin material having insulating properties. The end portion of the core wire 21 in the second direction Y1 is exposed from the insulating coating 22. A first terminal 30 is connected to the exposed end portion of the core wire 21 in the second direction Y1 from the insulating coating 22.

[0037] (Specific structure of the first connector 10) Each first terminal 30 is electrically connected to each of the electric wires 20. As the material of each first terminal 30, for example, a metal material such as a copper-based or aluminum-based material can be used.

[0038] The end of each first terminal 30 in the second opposite direction Y2 is connected to the end of the core wire 21 of each electric wire 20 in the second direction Y1. Each first terminal 30 of the present embodiment is integrally formed with the end of the core wire 21 in the second direction Y1. Each first terminal 30 is formed, for example, in a flat plate shape. As shown in FIG. 5, each first terminal 30 has a bolt hole 31 that penetrates the first terminal 30 in the first direction X1. The bolt hole 31 is provided in the end region of the first terminal 30 in the second direction Y1.

[0039] For example, an insert nut 32 is inserted into each bolt hole 31. The insert nut 32 is made of metal. The insert nut 32 is formed in a cylindrical shape having a bolt hole 33 that penetrates the insert nut 32 in the first direction X1.

[0040] When the first connector 10 is connected to the second connector 200, the first terminal 30 is overlapped with the second terminal 210 in the first direction X1. The first terminal 30 is bolted to the second terminal 210 by, for example, a bolt 35 and an insert nut 32. At this time, the shaft portion of the bolt 35 penetrates the bolt hole 33 of the insert nut 32 and is inserted into the bolt hole 211 of the second terminal 210. Here, the bolt 35 is, for example, an anti-drop bolt. The bolt 35 has, for example, an insulating cap 36 fitted to the head of the bolt 35. The insulating cap 36 is made of synthetic resin. The insulating cap 36 protrudes from the head of the bolt 35 toward the first opposite direction X2. The insulating cap 36 has an opening 37 that exposes a part of the top surface of the head of the bolt 35.

[0041] The first housing 40 has, for example, a main body cylindrical portion 51 and a fitting cylindrical portion 55 into which a fitting cylindrical portion 221 of the second housing 220 of the second connector 200 is fitted. As shown in FIG. 2, the first housing 40 has a mounting portion 60 to which a service cover 90 is attached.

[0042] As shown in FIG. 5, the main body cylindrical portion 51 holds, for example, the first terminal 30 inside. The main body cylindrical portion 51 is formed, for example, in a cylindrical shape extending in the Y-axis direction. The main body cylindrical portion 51 opens, for example, in the second opposite direction Y2. As shown in FIG. 4, the main body cylindrical portion 51 is formed, for example, in a flat shape that is longer in the Z-axis direction than in the X-axis direction.

[0043] As shown in FIG. 5, the main body cylindrical portion 51 has a working hole 51X that penetrates the main body cylindrical portion 51 in the radial direction. The working hole 51X is formed so as to penetrate the peripheral wall 51A provided in the first opposite direction X2 of the main body cylindrical portion 51 in the first direction X1. The working hole 51X is formed, for example, so as to expose the head of the bolt 35 in a state where the second connector 200 is properly fitted to the first connector 10. The working hole 51X is formed, for example, so as to expose the heads of a plurality of bolts 35 collectively. The working hole 51X is formed, for example, so as to expose a plurality of insulating caps 36 collectively.

[0044] The first housing 40 has, for example, a cylindrical portion 52 that protrudes outward from the outer peripheral surface of the peripheral wall 51A of the main body cylindrical portion 51, here in the first opposite direction X2. The cylindrical portion 52 is provided so as to protrude in the first opposite direction X2 from the outer peripheral surface of the peripheral wall 51A that constitutes the working hole 51X. The cylindrical portion 52 is formed so as to surround the working hole 51X in a plan view seen from the X-axis direction. The internal space of the cylindrical portion 52 communicates with the working hole 51X. As shown in FIG. 4, the planar shape of the cylindrical portion 52 seen from the X-axis direction is formed, for example, in a flat shape that is longer in the Z-axis direction than in the Y-axis direction.

[0045] A seal member 70 is attached to the outer peripheral surface of the cylindrical portion 52. The seal member 70 is continuously formed over the entire circumference in the circumferential direction of the cylindrical portion 52. The seal member 70 seals between the outer peripheral surface of the cylindrical portion 52 and the inner peripheral surface of the service cover 90. The seal member 70 is, for example, made of rubber.

[0046] As shown in FIG. 5, inside the cylindrical portion 52, for example, a cylindrical seal holder 53 is attached. The seal holder 53 has a protruding portion 53A provided at the end of the seal holder 53 in the first opposite direction X2. The protruding portion 53A covers the end face of the cylindrical portion 52 in the first opposite direction X2 and protrudes outward from the outer peripheral surface of the cylindrical portion 52. The protruding portion 53A can be engaged with the seal member 70 in the first direction X1. The protruding portion 53A suppresses the seal member 70 from coming off along the first opposite direction X2 from the cylindrical portion 52. Note that the seal member 70 is provided between the outer peripheral surface of the main body cylindrical portion 51 and the protruding portion 53A in the first direction X1.

[0047] The fitting cylindrical portion 55 protrudes from the peripheral wall provided in the first direction X1 of the main body cylindrical portion 51 toward the first direction X1. Inside the fitting cylindrical portion 55, the terminal holding portion 222 of the second housing 220 is inserted. Outside the fitting cylindrical portion 55, the fitting cylindrical portion 221 of the second housing 220 is fitted.

[0048] A seal member 71 is attached to the outer peripheral surface of the fitting cylindrical portion 55. The seal member 71 is continuously formed over the entire circumference in the circumferential direction of the fitting cylindrical portion 55. The seal member 71 seals between the outer peripheral surface of the fitting cylindrical portion 55 and the inner peripheral surface of the fitting cylindrical portion 221. The seal member 71 is made of, for example, rubber.

[0049] Inside the fitting cylindrical portion 55, for example, a cylindrical seal holder 56 is attached. The seal holder 56 has a protruding portion 56A provided at the end of the seal holder 56 in the first direction X1. The protruding portion 56A covers the end face of the fitting cylindrical portion 55 in the first direction X1 and protrudes outward from the outer peripheral surface of the fitting cylindrical portion 55. The protruding portion 56A can be engaged with the seal member 71 in the first direction X1. The protruding portion 56A suppresses the seal member 71 from coming off along the first direction X1 from the fitting cylindrical portion 55. Note that the seal member 71 is provided between the outer peripheral surface of the main body cylindrical portion 51 and the protruding portion 56A in the first direction X1.

[0050] As shown in FIG. 4, the first connector 10 has a seal member 72 attached to the outer peripheral surface of each electric wire 20. Each seal member 72 is continuously formed over the entire circumference in the circumferential direction of the electric wire 20. Each seal member 72 seals between the outer peripheral surface of the electric wire 20 and the inner peripheral surface of the first housing 40. Each seal member 72 is made of, for example, rubber.

[0051] The retainer 75 is attached, for example, to the end portion of the first housing 40 in the second opposite direction Y2. The retainer 75 prevents the seal member 72 from coming off the first housing 40.

[0052] As shown in FIG. 6, the first housing 40 has a fitting detection portion 57 that detects the fitting of the first connector 10 and the second connector 200 (see FIG. 2). The fitting detection portion 57 is provided on the peripheral wall provided in the second direction Y1 of the first housing 40. A fitting detection member 80 is attached to the fitting detection portion 57. The movement of the fitting detection member 80 in the first direction X1 is restricted when the second connector 200 (see FIG. 2) is not properly fitted to the first connector 10. As shown in FIG. 1, when the second connector 200 is properly fitted to the first connector 10, the movement of the fitting detection member 80 in the first direction X1 becomes possible. In other words, if the movement of the fitting detection member 80 in the first direction X1 becomes possible, it can be detected that the second connector 200 is properly fitted to the first connector 10.

[0053] (Configuration of the service cover 90) As shown in FIG. 2, the service cover 90 is attached to the first housing 40. The service cover 90 is attached to the first housing 40 in a state before the second connector 200 is connected to the first connector 10. That is, the service cover 90 is integrated with the first housing 40 in a state before the second connector 200 is connected to the first connector 10. The service cover 90 is attached to the first housing 40 so as to be movable between a first position (see FIG. 2) that exposes the work hole 51X of the first housing 40 and a second position (see FIG. 1) that closes the work hole 51X in a state where the service cover 90 is attached to the first housing 40. The service cover 90 is attached to the first housing 40 so as to be movable to a third position (see FIG. 12) that is a position in the first opposite direction X2 from the second position. Here, the third position is located directly above the second position. The service cover 90 is attached to the first housing 40 so as to be circularly movable between the first position and the third position. The service cover 90 is attached to the first housing 40 so as to be slidable along the first direction X1 between the third position and the second position. In the following description, the description of the direction in the service cover 90 is described based on the state where the service cover 90 is disposed at the second position.

[0054] As shown in FIG. 7, the service cover 90 has, for example, a main body portion 91, a fitting cylinder portion 92, a frame body 93, a bearing hole 94, and a protruding piece 96. The service cover 90 is, for example, a single component in which the main body portion 91, the fitting cylinder portion 92, the frame body 93, and the protruding piece 96 are continuously formed integrally. The service cover 90 is, for example, made of synthetic resin.

[0055] The main body portion 91 is formed in a flat plate shape, for example. The main body portion 91 is formed in a flat shape that is longer in the Z-axis direction than in the Y-axis direction, for example. As shown in FIG. 5, the main body portion 91 is provided so as to close the work hole 51X when the service cover 90 is disposed at the second position.

[0056] As shown in FIG. 7, the fitting cylinder portion 92 protrudes from the end face of the main body portion 91 in the first direction X1 toward the first direction X1. The fitting cylinder portion 92 is formed, for example, in a flat cylindrical shape that is longer in the Z-axis direction than in the Y-axis direction. As shown in FIG. 5, when the service cover 90 is disposed at the second position, the fitting cylinder portion 92 is fitted outside the cylinder portion 52. At this time, the seal member 70 attached to the outer peripheral surface of the cylinder portion 52 seals between the inner peripheral surface of the fitting cylinder portion 92 and the outer peripheral surface of the cylinder portion 52.

[0057] As shown in FIG. 7, the frame body 93 is provided on both sides of the main body portion 91 in the Z-axis direction. In other words, the service cover 90 has a pair of frame bodies 93 provided on both sides of the main body portion 91 so as to sandwich the main body portion 91 therebetween. Each of the pair of frame bodies 93 protrudes from the end face of the main body portion 91 in the first direction X1 toward the first direction X1. Each frame body 93 extends linearly along the first direction X1. Each frame body 93 is formed, for example, in a rectangular frame shape. Each frame body 93 has a bearing hole 94 provided at the central portion in the Y-axis direction. The bearing hole 94 penetrates the frame body 93 in the Z-axis direction. The bearing hole 94 extends along the X-axis direction. The bearing hole 94 is formed, for example, in an elongated hole that is longer in the X-axis direction than in the Y-axis direction. The bearing hole 94 opens in the first opposite direction X2. The bearing hole 94 is closed in the first direction X1. In other words, the frame body 93 has a closing portion 95 that closes the opening of the bearing hole 94 in the first direction X1.

[0058] The protruding piece 96 protrudes, for example, from the frame body 93 toward the second opposite direction Y2. The protruding piece 96 extends along the second opposite direction Y2 from the end portion of the frame body 93 in the first direction X1. The dimension of the protruding piece 96 along the X-axis direction is, for example, the same as the dimension of the closing portion 95 along the X-axis direction.

[0059] (Configuration of the mounting portion 60) As shown in FIG. 6, the attachment portion 60 is provided on the outer peripheral surface of the first housing 40. The attachment portion 60 is provided on both end faces in the Z-axis direction among the end faces of the first housing 40. That is, the attachment portion 60 is provided on both sides of the cylindrical portion 52 in the Z-axis direction. In other words, the first housing 40 has a pair of attachment portions 60 provided on both sides of the cylindrical portion 52 so as to sandwich the cylindrical portion 52 therebetween. The pair of attachment portions 60 are provided, for example, symmetrically with respect to the XY plane. Since the pair of attachment portions 60 have the same structure as each other, in the following description, attention will be paid to the attachment portion 60 provided on the end face of the first housing 40 in the third direction Z1 of the pair of attachment portions 60 for explanation.

[0060] Each attachment portion 60 has, for example, a support shaft 61 and a first guide portion 62 that guides the service cover 90 when the service cover 90 moves in a circular motion around the support shaft 61. Each attachment portion 60 has, for example, one or more (two in this embodiment) second guide portions 63, 64 that guide the movement of the service cover 90 along the first direction X1 of the service cover 90. Each attachment portion 60 has, for example, a support portion 65 that supports the service cover 90 at the first position and an engagement portion 66 that engages with the service cover 90 at the second position.

[0061] The support shaft 61 protrudes from the end face of the first housing 40 in the third direction Z1 toward the third direction Z1. The support shaft 61 is formed in a columnar shape with the central axis oriented in the Z-axis direction. The support shaft 61 is inserted into the bearing hole 94 of the service cover 90.

[0062] The support shaft 61 has, for example, a base portion 61A and an engagement portion 61B. The base portion 61A is formed in a columnar shape, for example. As shown in FIG. 2, the base portion 61A is fitted into the bearing hole 94 of the service cover 90. The engagement portion 61B has a larger planar size than the base portion 61A when viewed from the Z-axis direction. The engagement portion 61B is formed so as to be engageable with the end face of the frame body 93 in the third direction Z1. By providing the engagement portion 61B, it is possible to preferably prevent the frame body 93 of the service cover 90 from falling off the support shaft 61.

[0063] As shown in FIG. 6, the first guide portion 62 guides the service cover 90 when the service cover 90 makes a circular motion from the first position to the third position. The first guide portion 62 guides the service cover 90 when the service cover 90 makes a circular motion around the support shaft 61. The first guide portion 62 guides the service cover 90 when the service cover 90 makes a circular motion with the central axis of the support shaft 61 as the rotation axis. The first guide portion 62 guides, for example, the protruding piece 96 of the service cover 90 when the service cover 90 makes a circular motion. The first guide portion 62 protrudes from the end surface of the first housing 40 in the third direction Z1 toward the third direction Z1. The protruding amount of the first guide portion 62 from the end surface of the first housing 40 in the third direction Z1 is, for example, smaller than the protruding amount of the support shaft 61 from the end surface of the first housing 40 in the third direction Z1.

[0064] As shown in FIG. 8, the first guide portion 62 is formed, for example, so as to extend parallel to the protruding piece 96 of the service cover 90 disposed at the first position. The first guide portion 62 is formed, for example, so as to be inclined with respect to the first direction X1 and to be inclined with respect to the second direction Y1. The first guide portion 62 is formed, for example, to have a rectangular planar shape when viewed from the Z-axis direction.

[0065] The two second guide portions 63 and 64 guide the service cover 90 when the service cover 90 slides along the first direction X1 from the third position to the second position. The two second guide portions 63 and 64 guide the frame body 93 and the protruding piece 96 of the service cover 90 when the service cover 90 moves in parallel along the first direction X1. As shown in FIG. 6, each of the second guide portions 63 and 64 protrudes from the end surface of the first housing 40 in the third direction Z1 toward the third direction Z1. The protruding amount of each of the second guide portions 63 and 64 from the end surface of the first housing 40 in the third direction Z1 is, for example, smaller than the protruding amount of the support shaft 61 from the end surface of the first housing 40 in the third direction Z1.

[0066] As shown in FIG. 8, each of the second guide portions 63 and 64 extends along the first direction X1. The two second guide portions 63 and 64 extend in parallel with each other, for example. Each of the second guide portions 63 and 64 has a rectangular planar shape extending, for example, when viewed from the Z-axis direction. The second guide portion 63 is provided, for example, at a position facing the first direction X1 from the first guide portion 62. The second guide portion 64 is provided at a position facing the second direction Y1 from the second guide portion 63. The second guide portion 64 is provided, for example, at a position shifted in the first direction X1 from the second guide portion 63 in the X-axis direction. As shown in FIG. 12, the two second guide portions 63 and 64 are provided so as to sandwich the closing portion 95 and the protruding piece 96 of the frame body 93 of the service cover 90 disposed at the third position. In the service cover 90 disposed at the third position, the frame body 93 extends straight along the first direction X1.

[0067] As shown in FIG. 2, the support portion 65 supports the frame body 93 of the service cover 90 disposed at the first position, for example. The support portion 65 protrudes from the end surface of the first housing 40 in the third direction Z1 toward the third direction Z1. The protruding amount of the support portion 65 from the end surface of the first housing 40 in the third direction Z1 is smaller than the protruding amount of the support shaft 61 from the end surface of the first housing 40 in the third direction Z1, for example. As shown in FIG. 8, the support portion 65 extends along the first direction X1. The support portion 65 is provided, for example, at a position facing the first opposite direction X2 from the second guide portion 64. The end surface of the support portion 65 in the first opposite direction X2 is a support surface 65A that can contact the frame body 93 of the service cover 90. The support surface 65A is formed so as to extend in parallel with the frame body 93 of the service cover 90 disposed at the first position. The support surface 65A is inclined with respect to the first direction X1 and inclined with respect to the second direction Y1, for example. The support surface 65A is formed so as to be inclined toward the first direction X1 as it goes from the end portion of the support surface 65A in the second direction Y1 to the end portion of the support surface 65A in the second opposite direction Y2.

[0068] As shown in FIG. 1, the engaging portion 66 is provided so as to be engageable with the bearing hole 94 of the frame body 93 of the service cover 90 disposed at the second position. The engaging portion 66 is provided so as to be engageable with the inner surface of the bearing hole 94 of the service cover 90 disposed at the second position, specifically, the end surface in the first opposite direction X2 of the closing portion 95. As shown in FIG. 6, the engaging portion 66 protrudes in the third direction Z1 from the end surface of the first housing 40 in the third direction Z1. The protruding amount of the engaging portion 66 from the end surface of the first housing 40 in the third direction Z1 is, for example, smaller than the protruding amount of the support shaft 61 from the end surface of the first housing 40 in the third direction Z1. The engaging portion 66 extends along the first direction X1.

[0069] The end surface of the engaging portion 66 in the first opposite direction X2 has, for example, a guiding surface 66A. The guiding surface 66A is, for example, an inclined surface inclined so that the protruding amount from the end surface of the first housing 40 in the third direction Z1 increases as it goes from the end in the first opposite direction X2 of the engaging portion 66 toward the end in the first direction X1 of the engaging portion 66. The guiding surface 66A is provided to facilitate the service cover 90 to straddle the engaging portion 66 when the service cover 90 slides along the first direction X1. The end surface of the engaging portion 66 in the first direction X1 is an engaging surface formed to be engageable with the inner surface of the bearing hole 94. The end surface of the engaging portion 66 in the first direction X1 is formed, for example, on a vertical surface extending perpendicular to the end surface of the first housing 40 in the third direction Z1.

[0070] As shown in FIG. 8, the engaging portion 66 is provided at a position toward the first direction X1 from the support shaft 61. The engaging portion 66 is provided, for example, at a position overlapping the support shaft 61 in a plan view seen from the X-axis direction.

[0071] (Manufacturing method of the connector assembly 1) Next, the manufacturing method of the connector assembly 1 will be described. First, as shown in FIG. 9, prepare a first connector 10 having a first housing 40 that holds a first terminal 30 (see FIG. 5) and a service cover 90 attached to the first housing 40. At this time, the service cover 90 is attached to the first housing 40 in advance in a state before the second connector 200 is connected to the first connector 10. That is, the service cover 90 is integrated with the first housing 40 in advance. More specifically, the service cover 90 is attached to the first housing 40 in advance in a state of being disposed at the first position. At this time, the support shaft 61 is inserted into the inner end of the bearing hole 94 of the service cover 90, and the frame body 93 of the service cover 90 is supported by the support portion 65.

[0072] Also, as shown in FIG. 9, prepare a second connector 200 having a second terminal 210 and a second housing 220 that holds the second terminal 210. Subsequently, the first housing 40 of the first connector 10 is fitted to the second housing 220 of the second connector 200 along the first direction X1. At this time, when the first housing 40 is properly fitted to the second housing 220, the fitting detection member 80 can move in the first direction X1. In other words, if the service cover 90 can move in the first direction X1, it can be detected that the second housing 220 is properly fitted to the first housing 40.

[0073] Next, as shown in FIG. 10, after the second housing 220 is properly fitted to the first housing 40, a bolt 35 with an insulating cap 36 fitted therein is inserted into the cylindrical portion 52. However, in a state where the bolt fastening of the bolt 35 is not completed, as shown in FIG. 10, a part of the insulating cap 36 is provided so as to protrude in the first opposite direction X2 from the end face of the seal holder 53 in the first opposite direction X2. For this reason, in a state where the bolt fastening of the bolt 35 is not completed, the movement of the service cover 90, specifically, the circular movement centered on the support shaft 61 is restricted by the insulating cap 36.

[0074] Subsequently, as shown in FIG. 5, bolt 35 is screwed into insert nut 32. A tool for tightening bolt 35 and insert nut 32 is inserted into the interior of first housing 40 through working hole 51X of first connector 10. When bolt 35 is screwed into insert nut 32, first terminal 30 and second terminal 210 are bolted together, and first terminal 30 and second terminal 210 are electrically connected to each other.

[0075] As shown in FIG. 11, when the bolt fastening is completed, insulating cap 36 (see FIG. 10) is housed inside cylindrical portion 52. For this reason, circular movement of service cover 90 becomes possible. In other words, if circular movement of service cover 90 becomes possible, it can be detected that the bolt fastening is completed.

[0076] Next, service cover 90 disposed at the first position is circularly moved about support shaft 61. Specifically, service cover 90 is circularly moved clockwise (see the arrow in the figure) between the first position and the third position with the central axis of support shaft 61 as the rotation axis. At this time, protruding piece 96 of service cover 90 is circularly moved while contacting first guide portion 62. In this way, service cover 90 is circularly moved while being guided by first guide portion 62 due to the contact between protruding piece 96 and first guide portion 62.

[0077] As shown in FIG. 12, service cover 90 is disposed at the third position by the above-described circular movement. In service cover 90 disposed at the third position, main body portion 91 faces cylindrical portion 52, and fitting cylindrical portion 92 is provided away from cylindrical portion 52 in the first direction X1. Also, in service cover 90 disposed at the third position, frame body 93 extends along the X-axis direction, and closing portion 95 and protruding piece 96 of frame body 93 extend along the Y-axis direction. Closing portion 95 and protruding piece 96 are sandwiched by two second guide portions 63, 64.

[0078] Subsequently, in the process shown in FIG. 13, the service cover 90 disposed at the third position (see FIG. 12) is slid along the first direction X1 to the second position. At this time, the service cover 90 is slid along the first direction X1 while being guided by the two second guide portions 63 and 64. At this time, the closing portion 95 of the frame body 93 moves over the engaging portion 66 and moves to a position in the first direction X1 beyond the engaging portion 66. As a result, the inner surface of the bearing hole 94, specifically, the end surface of the closing portion 95 in the second opposite direction X2 and the end surface of the engaging portion 66 in the first direction X1 (i.e., the vertical surface) are engaged with each other in the first direction X1. By the engagement between the closing portion 95 and the engaging portion 66, the state in which the service cover 90 is attached to the first housing 40 at the second position is maintained. Further, as shown in FIG. 5, in the service cover 90 disposed at the second position, the fitting cylinder portion 92 is fitted outside the cylinder portion 52. Further, in the service cover 90 disposed at the second position, the seal member 70 seals between the inner peripheral surface of the fitting cylinder portion 92 and the outer peripheral surface of the cylinder portion 52, and the work hole 51X is closed by the main body portion 91.

[0079] Thereafter, by pressing the fitting detection member 80 in the first direction X1, the fitting detection member 80 is moved along the first direction X1. Note that the movement of the fitting detection member 80 may be performed immediately after the first housing 40 and the second housing 220 are fitted together.

[0080] Through the above manufacturing process, the connector assembly 1 of the present embodiment can be manufactured. Next, the operation and effect of the present embodiment will be described. (1) The first connector 10 includes a first terminal 30, a first housing 40 that holds the first terminal 30, and a working hole 51X that penetrates the first housing 40 in the first direction X1 and exposes the first terminal 30. The first connector 10 has a service cover 90 that is attached to the first housing 40 and can close the working hole 51X. The service cover 90 is movably provided between a first position where the working hole 51X is exposed and a second position where the working hole 51X is closed in a state of being attached to the first housing 40. The first housing 40 has a support shaft 61 and a first guide portion 62 that guides the service cover 90 when the service cover 90 moves in a circular motion around the support shaft 61. The service cover 90 has a bearing hole 94 into which the support shaft 61 is inserted. The service cover 90 is provided so as to be capable of circular motion around the support shaft 61 between the first position and the second position.

[0081] According to this configuration, the service cover 90 is attached to the first housing 40 so as to be movable between a first position where the working hole 51X is exposed and a second position where the working hole 51X is closed in a state of being attached to the first housing 40. Therefore, before the second connector 200, which is a mating connector, is connected to the first connector 10, the service cover 90 can be attached to the first housing 40 in advance. Thus, when connecting the first connector 10 and the second connector 200, the working hole 51X can be closed by using the service cover 90 that is attached to the first housing 40 in advance. As a result, when closing the working hole 51X, the operation of attaching a service cover prepared separately from the first connector 10 and the second connector 200 to the first connector 10 can be omitted. Thereby, the assembly workability of the connector assembly 1 can be improved. In particular, it is effective when automating the connection work between the first connector 10 and the second connector 200. Specifically, since the number of parts added to the manufacturing line during the assembly work of the connector assembly 1 can be reduced, the assembly process of the connector assembly 1 can be easily automated.

[0082] (2) Further, the first housing 40 is provided with a support shaft 61 and a first guide portion 62 for guiding the service cover 90 when it makes a circular motion about the support shaft 61. For this reason, when the service cover 90 makes a circular motion about the support shaft 61 of the first housing 40, the service cover 90 is guided by the first guide portion 62 of the first housing 40. Thereby, when the service cover 90 is made to perform a circular motion between the first position and the second position, the service cover 90 can be moved in a stable state.

[0083] (3) The service cover 90 is movably provided at the first position, the second position, and a third position which is a position facing in the first opposite direction X2 which is the opposite direction of the first direction X1 from the second position, in a state of being attached to the first housing 40. The service cover 90 is provided so as to be capable of performing a circular motion from the first position to the third position. The service cover 90 is provided so as to be slidable along the first direction X1 from the third position to the second position.

[0084] According to this configuration, the service cover 90 can be made to perform a circular motion from the first position to the third position, and can be translated along the first direction X1 from the third position to the second position. Thereby, the service cover 90 can be moved from the first position to the second position by combining a circular motion and a translation. For this reason, compared with the case where the service cover 90 is moved from the first position to the second position using only translation, the occurrence of stick-slip can be suppressed.

[0085] (4) When the service cover 90 slides along the first direction X1, the service cover 90 is guided by the second guide portions 63, 64 of the first housing 40. Thereby, when the service cover 90 is slid along the first direction X1 between the third position and the second position, the service cover 90 can be moved in a stable state.

[0086] When the service cover 90 is disposed at the second position, the engaging portion 66 of the first housing 40 and the bearing hole 94 of the service cover 90 are engaged with each other. Thereby, the state where the service cover 90 is disposed at the second position, that is, the state where the work hole 51X is closed by the service cover 90 can be suitably maintained.

[0087] (6) The first housing 40 has a support portion 65 that supports the service cover 90 disposed at the first position. By this support portion 65, the posture of the service cover 90 disposed at the first position can be suitably maintained.

[0088] (7) When the service cover 90 is disposed at the second position, the cylindrical portion 52 of the first housing 40 and the seal member 70 attached to the outer peripheral surface of the cylindrical portion 52 are fitted inside the fitting cylindrical portion 92 of the service cover 90. Therefore, when the service cover 90 is disposed at the second position, the seal member 70 can seal between the inner peripheral surface of the fitting cylindrical portion 92 and the outer peripheral surface of the cylindrical portion 52. Thereby, it is possible to preferably suppress the intrusion of a liquid such as water into the inside of the first housing 40 through the gap between the inner peripheral surface of the fitting cylindrical portion 92 and the outer peripheral surface of the cylindrical portion 52.

[0089] (8) The seal holder 53 attached inside the cylindrical portion 52 projects outward from the outer peripheral surface of the cylindrical portion 52 and has a projecting portion 53A that can be engaged with the seal member 70. According to this configuration, the movement of the seal member 70 in the first opposite direction X2 is restricted by the projecting portion 53A of the seal holder 53. Thereby, it is possible to preferably suppress the seal member 70 from coming off the cylindrical portion 52.

[0090] (9) When the service cover 90 moves in a circular motion about the support shaft 61 of the first housing 40, the projecting piece 96 of the service cover 90 is guided by the first guide portion 62 of the first housing 40. Thereby, when the service cover 90 is moved in a circular motion between the first position and the second position, the service cover 90 can be moved in a stable state.

[0091] (Modified Example) The above embodiment can be implemented with the following modifications. The above embodiment and the following modification examples can be implemented in combination with each other within a technically non - conflicting range.

[0092] · The structure of the service cover 90 in the above embodiment can be appropriately changed. · The protruding piece 96 may be omitted. · The number of the bearing holes 94 is not particularly limited. The number of the bearing holes 94 may be one or three or more.

[0093] · The fitting cylinder portion 92 may be omitted. In this case, the seal member 70 may be omitted. · The structure of the first housing 40 in the above embodiment can be appropriately changed. · The seal holder 56 may be omitted.

[0094] · The seal holder 53 may be omitted. · The cylinder portion 52 may be omitted. · The structure of the fitting detection portion 57 can be appropriately changed.

[0095] · The fitting detection portion 57 may be omitted. In this case, the fitting detection member 80 may be omitted. · The structure of the attachment portion 60 can be appropriately changed.

[0096] · The support portion 65 may be omitted. · The second guide portion 64 may be omitted. · The second guide portion 63 may be omitted.

[0097] · The guiding surface 66A of the engaging portion 66 may be omitted. · The engaging portion 66 may be omitted. · In the above embodiment, the fitting cylinder portion 92 of the service cover 90 is fitted outside the cylinder portion 52 of the first housing 40, but it is not limited to this. For example, the fitting cylinder portion 92 may be fitted inside the cylinder portion 52. In this case, the seal member 70 may be attached to the outer peripheral surface of the fitting cylinder portion 92.

[0098] ·The structure of the bolt 35 in the above embodiment can be changed as appropriate. For example, the insulating cap 36 may be omitted. ·The structure of the retainer 75 in the above embodiment can be changed as appropriate.

[0099] ·The retainer 75 may be omitted. ·In the above embodiment, the first terminal 30 is formed integrally with the core wire 21 of the electric wire 20, but it is not limited thereto. The first terminal 30 and the core wire 21 may be separate parts, and the first terminal 30 and the core wire 21 may be joined by crimping, welding, or the like.

[0100] ·The structure of the second connector 200 in the above embodiment can be changed as appropriate. ·The bolt hole 211 may be formed so that the second terminal 210 penetrates in the first direction X1.

[0101] ·In the above embodiment, the first connector 10 is connected to the second connector 200 along the first direction X1, but it is not limited thereto. For example, the first connector 10 may be connected to the second connector 200 along the second direction Y1.

[0102] ·The embodiments disclosed this time should be considered as illustrative in all respects and not restrictive. The scope of the present invention is shown not by the above meaning, but by the scope of the claims, and it is intended that all modifications within the meaning and scope equivalent to the scope of the claims are included.

Explanation of Reference Numerals

[0103] 1... Connector assembly, 10... First connector (connector), 20... Electric wire, 21... Core wire, 22... Insulation coating, 30... First terminal, 31... Bolt hole, 32... Insert nut, 33... Bolt hole, 35... Bolt, 36... Insulating cap, 37... Opening, 40... First housing, 51... Main body cylinder part, 51A... Peripheral wall, 51X... Working hole, 52... Cylinder part, 53... Seal holder, 53A... Protrusion, 55... Fitting cylinder part, 56... Seal holder, 56A... Protrusion, 57... Fitting detection part, 60... Mounting part, 61... Support shaft, 61A... Base part, 61B... Engaging part, 62... First guide part, 63, 64... Second guide parts, 65... Support part, 65A... Support surface, 66... Engaging part, 66A... Guide surface, 70, 71, 72... Seal members, 75... Retainer, 80... Fitting detection member, 90... Service cover, 91... Main body part, 92... Fitting cylinder part, 93... Frame body, 94... Bearing hole, 95... Closing part, 96... Protruding piece, 200... Second connector, 210... Second terminal, 211... Bolt hole, 220... Second housing, 221... Fitting cylinder part, 222... Terminal holding part, 223... Fixing part, X1... First direction, X2... First opposite direction, Y1... Second direction, Y2... Second opposite direction, Z1... Third direction, Z2... Third opposite direction.

Claims

1. a first terminal; a first housing that holds the first terminal; a working hole that penetrates the first housing in a first direction and exposes the first terminal; a service cover that is attached to the first housing and can close the working hole; and the service cover is movably provided between a first position where the working hole is exposed and a second position where the working hole is closed in a state where the service cover is attached to the first housing, the first housing has a support shaft and a first guide portion that guides the service cover when the service cover moves in a circular motion around the support shaft, the service cover has a bearing hole into which the support shaft is inserted, the service cover is provided so as to be capable of circular motion between the first position and the second position, a connector.

2. the service cover is movably provided between the first position, the second position, and a third position that is a position in the opposite direction of the first direction from the second position in a state where the service cover is attached to the first housing, the service cover is provided so as to be capable of circular motion from the first position to the third position, the service cover is provided so as to be slidable along the first direction from the third position to the second position, the connector according to claim 1.

3. the first housing further has a second guide portion that guides the service cover when the service cover slides along the first direction, the connector according to claim 2.

4. the first housing further has an engaging portion that can engage with the bearing hole, the engaging portion is engaged with the bearing hole in a state where the service cover is disposed at the second position, the connector according to claim 1.

5. the first housing further has a support portion that supports the service cover disposed at the first position, the connector according to claim 1.

6. the first housing has a cylindrical portion that protrudes outward from an outer peripheral surface of the first housing and communicates with the working hole, the connector has a sealing member attached to an outer peripheral surface of the cylindrical portion, the service cover has a main body portion that closes the working hole and a fitting cylindrical portion that protrudes from the main body portion in the first direction. The fitting cylinder part is provided so as to be fitted outside the cylinder part in a state where the service cover is disposed at the second position. The seal member seals between the outer peripheral surface of the cylinder part and the inner peripheral surface of the fitting cylinder part. The connector according to claim 1.

7. A cylindrical seal holder is attached inside the cylinder part. The seal holder covers an end surface of the cylinder part in a first opposite direction which is the opposite direction of the first direction, and has a protruding part that protrudes outward from the outer peripheral surface of the cylinder part. The seal member is provided between the outer peripheral surface of the first housing and the protruding part in the first direction. The protruding part is engageable with the seal member. The connector according to claim 6.

8. The service cover has a frame body protruding from the main body part in the first direction, and a protruding piece protruding from the tip of the frame body in a direction orthogonal to the first direction. The bearing hole is provided in the frame body. The protruding piece is guided by the first guide part when the service cover performs the circular motion. The connector according to claim 6.

9. A first connector which is the connector according to any one of claims 1 to 8, and a second connector connected to the first connector. The second connector has a second terminal connected to the first terminal, and a second housing that holds the second terminal and is fitted to the first housing. A connector assembly.

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