Connector unit

Abstract

To provide a connector unit capable of realizing an airtight structure in the periphery of a pin terminal and a socket terminal while reducing the number of components in a connected state of a pin connector and a socket connector.SOLUTION: A connector unit (1) comprises: a socket connector (2) including a socket terminal (4) and a socket side holding member (5) covering the outer peripheral surface of the socket terminal (4) in an airtight manner; and a pin connector (3) including a pin terminal (10) and a pin side holding member (12) covering the outer peripheral surface of the pin terminal (10) in an airtight manner. The socket side holding member (5) includes a recess (5b) into which the pin side holding member (12) is inserted. The pin side holding member (12) consists of an elastic member. The end face (4h) of the socket terminal 4 is brought into contact with the pin side holding member (12), and the pin side holding member (12) is brought into contact with the bottom face (5c) of the recess (5b) of the socket side holding member (5).SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a connector unit.

Background Art

[0002] Generally, it is preferable that the connector unit has a configuration capable of suppressing partial discharge (corona discharge) in a connected state between a pin connector and a socket connector. For example, as shown in FIG. 27, the connector unit 100 of Patent Document 1 includes a pin connector 103 in which a pin terminal 102 is insert-molded on a base 101, and a socket connector 106 in which a socket terminal 105 is insert-molded on a base portion 104.

[0003] The bottomed cylindrical portion 101a of the base 101 is covered with a seal packing 107 made of a soft synthetic resin. In a state where the bottomed cylindrical portion 101a of the base 101 and the holding cylinder 104a of the base portion 104 are fitted together, the end portion of the socket terminal 105 on the side of the pin connector 103 contacts the seal packing 107, and the end portion of the holding cylinder 104a of the base portion 104 on the side of the pin connector 103 contacts the seal packing 107.

[0004] With such a configuration, the outer peripheral surface of the pin terminal 102 is airtightly covered by the base 101, and the outer peripheral surface of the socket terminal 105 is airtightly covered by the base portion 104. At the same time, in a state where the bottomed cylindrical portion 101a of the base 101 and the holding cylinder 104a of the base portion 104 are fitted together, the end portion of the socket terminal 105 on the side of the pin connector 103 contacts the seal packing 107, and the end portion of the holding cylinder 104a of the base portion 104 on the side of the pin connector 103 contacts the seal packing 107.

[0005] As a result, the connector unit 100 of Patent Document 1 has an airtight structure around the pin terminal 102 and the socket terminal 105 in a connected state between the pin connector 103 and the socket connector 106, and suppresses partial discharge.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] In the connector unit 100 of Patent Document 1, in the connected state of the pin connector 103 and the socket connector 106, in order to realize an airtight structure around the pin terminal 102 and the socket terminal 105, a seal packing 107 is required separately from the base body 101 of the pin connector 103 and the base portion 104 of the socket connector 106.

[0008] Therefore, the connector unit 100 of Patent Document 1 has a problem of a large number of parts for realizing an airtight structure around the pin terminal 102 and the socket terminal 105 in the connected state of the pin connector 103 and the socket connector 106.

[0009] An object of the present disclosure is to provide a connector unit capable of realizing an airtight structure around a pin terminal and a socket terminal with a small number of parts in a connected state of a pin connector and a socket connector.

Means for Solving the Problems

[0010] A connector unit according to an aspect of the present disclosure includes: a socket connector having a socket terminal and a socket-side holding member that airtightly covers an outer peripheral surface of the socket terminal; a pin connector having a pin terminal connected to the socket terminal and a pin-side holding member that airtightly covers an outer peripheral surface of the pin terminal; and is provided with the socket-side holding member is formed so as to surround an end surface on a connection side of the socket terminal with the pin connector, and in a state where the socket connector and the pin connector are connected, has a recess into which an end portion on a connection side of the pin-side holding member with the socket connector is inserted. The pin-side holding member is made of an elastic member, Inside the recess of the socket-side holding member in a state where the socket connector and the pin connector are connected, the end face on the connection side of the socket terminal with the pin connector contacts the pin-side holding member, and the end portion on the connection side of the pin-side holding member with the socket connector contacts the bottom surface of the recess of the socket-side holding member.

[0011] In the above connector unit, in a state where the socket connector and the pin connector are connected, it is preferable that the peripheral surface of the end portion on the connection side of the pin-side holding member with the socket connector contacts the peripheral surface of the recess of the socket-side holding member.

[0012] In the above connector unit, inside the recess of the socket-side holding member, it is preferable that the end face on the connection side of the socket terminal with the pin connector and the bottom surface of the recess of the socket-side holding member are arranged flush.

[0013] In the above connector unit, the pin connector preferably includes a biasing member that biases the pin-side holding member toward the connection side with the socket connector when the socket connector and the pin connector are connected and the pin-side holding member is pushed in the opposite direction to the connection side with the socket connector.

[0014] In the above connector unit, it is preferable that the pin-side holding member includes a flange portion that is pushed by the biasing member.

[0015] In the above connector unit, it is preferable that the socket-side holding member is integrally formed with the socket terminal by insert molding.

[0016] In the above connector unit, the socket terminal includes a flange portion, It is preferable that the socket-side holding member is formed so as to cover the flange portion of the socket terminal.

[0017] In the above-described connector unit, it is preferable that the pin-side holding member is integrally formed with the pin terminal by insert molding.

[0018] A connector unit according to one aspect of the present disclosure includes a socket connector having a socket terminal and a socket-side holding member that airtightly covers the outer peripheral surface of the socket terminal, a pin connector having a pin terminal connected to the socket terminal, a first pin-side holding member that airtightly covers the outer peripheral surface of the pin terminal, and a biasing member that biases the first pin-side holding member toward the connection side with the socket connector when the first pin-side holding member is pushed in on the side opposite to the connection side with the socket connector, and is provided with the socket-side holding member is formed so as to surround the end face on the connection side of the socket terminal with the pin connector, and in a state where the socket connector and the pin connector are connected, has a recess into which the end portion on the connection side of the first pin-side holding member with the socket connector is inserted, the first pin-side holding member is made of an elastic member, in the recess of the socket-side holding member in a state where the socket connector and the pin connector are connected, the end face on the connection side of the socket terminal with the pin connector contacts the first pin-side holding member, and the end portion on the connection side of the first pin-side holding member with the socket connector contacts the bottom surface of the recess of the socket-side holding member, the first pin-side holding member has a flange portion that is pushed by the biasing member and an extension portion that extends on the side opposite to the connection side with the socket connector with respect to the flange portion, the biasing member is composed of a plurality of divided pieces and is arranged so as to surround the extension portion of the first pin-side holding member.

[0019] In the above connector unit, the pin connector includes: a second pin-side holding member that holds the first pin-side holding member; an insulator having a through-hole into which the second pin-side holding member is inserted while holding the first pin-side holding member; a resin member filled in a portion of the through-hole of the insulator on the side opposite to the connection side with the socket connector with respect to the second pin-side holding member; and is provided with: It is preferable that the biasing member is disposed between the second pin-side holding member and a stepped portion formed in the through-hole of the insulator.

[0020] In the above connector unit, the split piece of the biasing member has an engaging portion; the second pin-side holding member has an engaged portion with which the engaging portion of the biasing member is engaged; It is preferable that the split piece of the biasing member is fixed so as to surround the extension portion of the first pin-side holding member in a state where the engaging portion of the split piece of the biasing member is engaged with the engaged portion of the second pin-side holding member.

[0021] In the above connector unit, in a state where the socket connector and the pin connector are connected, it is preferable that the peripheral surface of the end portion on the connection side of the first pin-side holding member with the socket connector contacts the peripheral surface of the recess of the socket-side holding member.

[0022] In the above connector unit, it is preferable that the end surface on the connection side of the socket terminal with the pin connector and the bottom surface of the recess of the socket-side holding member are flush with each other inside the recess of the socket-side holding member.

[0023] In the above connector unit, it is preferable that the socket-side holding member is integrally formed with the socket terminal by insert molding.

[0024] In the above connector unit, the socket terminal is provided with a flange portion, it is preferable that the socket-side holding member is formed so as to cover the flange portion of the socket terminal.

[0025] In the above connector unit, it is preferable that the first pin-side holding member is integrally formed with the pin terminal by insert molding.

Advantages of the Invention

[0026] According to the present disclosure, it is possible to provide a connector unit capable of realizing an airtight structure around the pin terminal and the socket terminal with a small number of parts in a state where the pin connector and the socket connector are connected.

Brief Description of the Drawings

[0027]

Figure 1

Figure 2

Figure 3

Figure 4

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Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

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Figure 14

Figure 15

Figure 16

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Figure 18

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Figure 21

Figure 22

Figure 23

Figure 24

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Figure 26

Figure 27

Embodiments for Carrying Out the Invention

[0028] Hereinafter, specific embodiments to which the present disclosure is applied will be described in detail with reference to the drawings. However, the present disclosure is not limited to the following embodiments. Also, for clarity of explanation, the following description and drawings are simplified as appropriate. Here, in the following description, a three-dimensional (XYZ) coordinate system is used for clarity of explanation.

[0029] <Embodiment 1> FIG. 1 is a perspective view of the state where the socket connector and the pin connector in the connector unit of the present embodiment are connected as viewed from the -Y axis side. FIG. 2 is a cross-sectional view showing the state where the socket connector and the pin connector in the connector unit of the present embodiment are connected.

[0030] FIG. 3 is a perspective view of the connector unit according to the present embodiment, as viewed from the +Y axis side, with the socket connector and the pin connector not connected. The connector unit 1 according to the present embodiment is, for example, a high-voltage connector unit, and as shown in FIGS. 1 to 3, includes a socket connector 2 and a pin connector 3.

[0031] FIG. 4 is a perspective view of the socket connector in the connector unit according to the present embodiment, as viewed from the +Y axis side. FIG. 5 is a perspective view of the socket connector in the connector unit according to the present embodiment, as viewed from the -Y axis side.

[0032] FIG. 6 is a cross-sectional view of the socket connector in the connector unit according to the present embodiment. FIG. 7 is a perspective view of the socket terminal of the socket connector in the connector unit according to the present embodiment, as viewed from the +Y axis side.

[0033] As shown in FIGS. 4 to 6, the socket connector 2 includes a socket terminal 4 and a holding member 5. The socket terminal 4 is made of a conductive metal member, and as shown in FIGS. 6 and 7, includes a first cylindrical portion 4a, a second cylindrical portion 4b, a partition portion 4c, and a flange portion 4d.

[0034] As shown in FIG. 7, the first cylindrical portion 4a has a substantially cylindrical shape and extends in the Y-axis direction. The internal space of the first cylindrical portion 4a forms a first insertion portion 4e into which the -Y axis side end of the pin terminal 10 of the pin connector 3 is inserted, as shown in FIG. 2.

[0035] As shown in FIG. 7, the second cylindrical portion 4b has a substantially cylindrical shape and extends in the Y-axis direction. The second cylindrical portion 4b is disposed on the -Y axis side with respect to the first cylindrical portion 4a and is continuous with the first cylindrical portion 4a in the Y-axis direction.

[0036] As shown in FIG. 6, the central axis AX1 of the second cylindrical portion 4b may be arranged so as to substantially overlap with the central axis AX2 of the first cylindrical portion 4a. Further, the outer diameter of the second cylindrical portion 4b may be smaller than the outer diameter of the first cylindrical portion 4a, and the inner diameter of the second cylindrical portion 4b may be smaller than the inner diameter of the first cylindrical portion 4a.

[0037] As shown in FIG. 6, the internal space of the second cylindrical portion 4b forms a second insertion portion 4f into which the conductor 6a of the first wiring 6 is inserted. Then, with the conductor 6a of the first wiring 6 inserted into the second insertion portion 4f, the socket terminal 4 and the conductor 6a of the first wiring 6 are connected by brazing or the like.

[0038] At this time, as shown in FIGS. 6 and 7, a notch portion 4g may be formed at the Y-axis - side end of the second cylindrical portion 4b for brazing and connecting the conductor 6a of the first wiring 6 to the second cylindrical portion 4b.

[0039] The notch portion 4g is, for example, as shown in FIGS. 6 and 7, arranged in the Z-axis + side portion at the Y-axis - side end of the second cylindrical portion 4b, and may have a curved shape that curves toward the Z-axis - side as it goes toward the Y-axis - side when viewed from the X-axis direction.

[0040] As shown in FIG. 6, the partition portion 4c is arranged between the first cylindrical portion 4a and the second cylindrical portion 4b so as to divide the internal space of the first cylindrical portion 4a and the internal space of the second cylindrical portion 4b.

[0041] As shown in FIG. 6, the Y-axis + side surface of the partition portion 4c may be formed as a substantially conical surface that expands in diameter as it goes toward the Y-axis + side so that the pin terminal 10 of the pin connector 3 can be inserted well. Also, the Y-axis - side surface of the partition portion 4c may be formed as a substantially conical surface that expands in diameter as it goes toward the Y-axis - side so that the conductor 6a of the first wiring 6 can be inserted well.

[0042] As shown in FIG. 7, the flange portion 4d protrudes radially outward from the end portion on the -Y axis side of the first cylindrical portion 4a and has a substantially annular shape when viewed in the Y-axis direction. The flange portion 4d may be disposed slightly on the +Y axis side with respect to the partition wall portion 4c, for example, as shown in FIG. 6.

[0043] The holding member (socket-side holding member) 5 is made of an insulating resin member and airtightly covers the outer peripheral surface of the socket terminal 4 as shown in FIGS. 4 and 6. The holding member 5 has a substantially cylindrical shape and extends in the Y-axis direction. A male screw portion 5a is formed on the portion on the +Y axis side of the outer peripheral surface of the holding member 5, as shown in FIG. 5.

[0044] The holding member 5 may be integrally formed with the socket terminal 4 by insert molding so as to airtightly cover the portion on the +Y axis side from the end portion on the +Y axis side of the second cylindrical portion 4b on the outer peripheral surface of the socket terminal 4, for example, as shown in FIG. 6.

[0045] Therefore, as shown in FIG. 6, the inner peripheral surface of the holding member 5 is in close contact with the outer peripheral surfaces of the end portion on the +Y axis side of the second cylindrical portion 4b of the socket terminal 4, the flange portion 4d, and the first cylindrical portion 4a to realize an airtight structure.

[0046] Since the holding member 5 is formed so as to cover the flange portion 4d of the socket terminal 4 in this way, the socket terminal 4 can be firmly fixed to the holding member 5. At this time, as shown in FIGS. 4 and 5, the notch portion 4g of the second cylindrical portion 4b of the socket terminal 4 protrudes from the holding member 5 to the -Y axis side.

[0047] The portion on the +Y axis side with respect to the socket terminal 4 in the internal space of the holding member 5 forms an insertion portion (i.e., a recess) 5b into which the holding member 12 of the pin connector 3 is inserted, as shown in FIGS. 2 and 6. And the end surface on the -Y axis side (i.e., the bottom surface) 5c of the insertion portion 5b exposes the end surface 4h on the +Y axis side of the socket terminal 4.

[0048] At this time, as shown in FIG. 6, the diameter of the inserted portion 5b is larger than the outer diameter of the first cylindrical portion 4a of the socket terminal 4. And the end face 5c on the -Y axis side of the inserted portion 5b is arranged substantially parallel to the XZ plane and is arranged substantially flush with the end face 4h on the +Y axis side of the socket terminal 4.

[0049] Here, in order for an operator or the like to hold the socket connector 2 when connecting the socket connector 2 and the pin connector 3, flat surfaces 5d substantially parallel to the YZ plane are formed at the +X axis side end and the -X axis side end of the holding member 5, as shown in FIGS. 4 and 5.

[0050] FIG. 8 is a perspective view of the pin connector in the connector unit of the present embodiment as viewed from the -Y axis side. FIG. 9 is an exploded view of the pin connector in the connector unit of the present embodiment as viewed from the +Y axis side. FIG. 10 is a cross-sectional view of the pin connector in the connector unit of the present embodiment.

[0051] FIG. 11 is a perspective view of the state where the pin terminals of the pin connector in the connector unit of the present embodiment are connected to the second wiring as viewed from the -Y axis side. FIG. 12 is a perspective view of the state where the holding member of the pin connector in the connector unit of the present embodiment is integrated with the pin terminals as viewed from the -Y axis side.

[0052] As shown in FIGS. 8 to 10, the pin connector 3 includes pin terminals 10, contacts 11, a holding member 12, a cap 13, and a biasing member 14. The pin terminals 10 are made of a conductive metal member and include a columnar portion 10a, a tapered portion 10b, a cylindrical portion 10c, and a flange portion 10d.

[0053] As shown in FIG. 11, the columnar portion 10a has a substantially cylindrical shape and extends in the Y-axis direction. The diameter of the columnar portion 10a is smaller than the inner diameter of the first inserted portion 4e of the socket terminal 4 in the socket connector 2.

[0054] As shown in FIG. 11, the conical portion 10b has a substantially conical shape that tapers as it extends toward the Y-axis side. The conical portion 10b is disposed on the Y-axis side with respect to the columnar portion 10a and is continuous with the columnar portion 10a in the Y-axis direction.

[0055] As shown in FIG. 10, the central axis AX3 of the conical portion 10b is preferably arranged to substantially overlap the central axis AX4 of the columnar portion 10a. Further, the outer diameter of the end portion of the conical portion 10b on the Y-axis + side is preferably substantially equal to the inner diameter of the first insertion portion 4e of the socket terminal 4 in the socket connector 2.

[0056] Furthermore, the length obtained by adding the length of the conical portion 10b in the Y-axis direction to the length of the columnar portion 10a in the Y-axis direction is preferably slightly shorter than the length of the first insertion portion 4e of the socket terminal 4 in the socket connector 2 in the Y-axis direction.

[0057] As shown in FIG. 11, the cylindrical portion 10c has a substantially cylindrical shape and extends in the Y-axis direction. The cylindrical portion 10c is disposed on the Y-axis + side with respect to the columnar portion 10a and is continuous with the columnar portion 10a in the Y-axis direction.

[0058] As shown in FIG. 10, the central axis AX5 of the cylindrical portion 10c is preferably arranged to substantially overlap the central axis AX4 of the columnar portion 10a. Also, the outer diameter of the cylindrical portion 10c is preferably substantially equal to the outer diameter of the columnar portion 10a.

[0059] As shown in FIG. 10, the internal space of the cylindrical portion 10c forms an insertion portion 10e into which the conductor 15a of the second wiring 15 is inserted. Then, with the conductor 15a of the second wiring 15 inserted into the insertion portion 10e, the cylindrical portion 10c is caulked so that the pin terminal 10 and the conductor 15a of the second wiring 15 are connected.

[0060] As shown in FIG. 11, the flange portion 10d protrudes radially outward from the end portion of the columnar portion 10a on the Y-axis + side and has a substantially annular shape when viewed from the Y-axis direction. The outer diameter of the flange portion 10d is preferably substantially equal to the inner diameter of the first insertion portion 4e of the socket terminal 4 in the socket connector 2, for example.

[0061] The contact 11 is made of a conductive metal member and is a substantially barrel-shaped leaf spring as shown in FIGS. 8 and 9. Specifically, the contact 11 includes a first cylindrical portion 11a, a second cylindrical portion 11b, and a leaf spring body 11c. The first cylindrical portion 11a is a plate body bent in a substantially C shape when viewed from the Y-axis direction and extends in the Y-axis direction.

[0062] As shown in FIG. 10, the inner diameter of the first cylindrical portion 11a is substantially equal to the diameter of the columnar portion 10a of the pin terminal 10. Also, the outer diameter of the first cylindrical portion 11a is slightly smaller than the inner diameter of the first insertion portion 4e of the socket terminal 4 in the socket connector 2. The second cylindrical portion 11b has substantially the same shape as the first cylindrical portion 11a as shown in FIGS. 8 and 9 and is arranged on the +Y-axis side with respect to the first cylindrical portion 11a.

[0063] The leaf spring body 11c is a plate body bent convexly outward in the radial direction of the contact 11 as shown in FIGS. 8 and 9 and extends in the Y-axis direction. And the leaf spring bodies 11c are arranged at intervals in the circumferential direction of the contact 11 and connect the first cylindrical portion 11a and the second cylindrical portion 11b. A contact point 11d protruding outward in the radial direction of the contact 11 is formed at the bent portion of the leaf spring body 11c.

[0064] Such a contact 11 is arranged between the conical portion 10b and the flange portion 10d of the pin terminal 10 with the columnar portion 10a of the pin terminal 10 arranged inside the contact 11 as shown in FIGS. 8 and 10.

[0065] The holding member (pin-side holding member) 12 is made of an insulating elastic member such as silicon and hermetically covers the outer peripheral surface of the pin terminal 10 as shown in FIGS. 9, 10, and 12. The holding member 12 may be integrally formed with the pin terminal 10 by insert molding so as to hermetically cover, for example, the +Y-axis side end of the flange portion 10d of the pin terminal 10, the outer peripheral surface of the cylindrical portion 10c, and the connection portion between the pin terminal 10 and the second wiring 15.

[0066] As shown in FIGS. 9, 10, and 12, the holding member 12 includes a cylindrical portion 12a and a flange portion 12b. The cylindrical portion 12a has a substantially cylindrical shape and extends in the Y-axis direction. The inner peripheral surface of the cylindrical portion 12a is in close contact with the end portion on the +Y-axis side of the flange portion 10d of the pin terminal 10, the outer peripheral surface of the cylindrical portion 10c, and the connection portion between the pin terminal 10 and the second wiring 15 to realize an airtight structure.

[0067] As shown in FIG. 2, the outer diameter of the cylindrical portion 12a is substantially equal to the diameter of the inserted portion 5b of the holding member 5 of the socket connector 2. And the end surface on the -Y-axis side of the cylindrical portion 12a (that is, the end surface on the -Y-axis side of the holding member 12) 12c is arranged substantially parallel to the XZ plane as shown in FIG. 12.

[0068] As shown in FIGS. 9 and 12, the flange portion 12b projects radially outward from the end portion on the +Y-axis side of the cylindrical portion 12a. The length of the portion on the -Y-axis side of the cylindrical portion 12a with respect to the flange portion 12b is substantially equal to the length in the Y-axis direction of the inserted portion 5b of the holding member 5 of the socket connector 2 as shown in FIG. 2.

[0069] As shown in FIGS. 9 and 12, the flange portion 12b has a substantially annular shape when viewed from the Y-axis direction. And the outer diameter of the flange portion 12b is smaller than the outer diameter of the holding member 5 of the socket connector 2 as shown in FIG. 2.

[0070] At this time, the end surface on the -Y-axis side of the flange portion 12b is preferably formed as a substantially conical surface that expands in diameter as it goes toward the +Y-axis side as shown in FIG. 12. And the end surface on the +Y-axis side of the flange portion 12b is preferably arranged substantially parallel to the XZ plane as shown in FIG. 9. Also, flat surfaces 12d substantially parallel to the YZ plane are preferably formed at the end portion on the +X-axis side and the end portion on the -X-axis side of the flange portion 12b.

[0071] The cap 13 is made of, for example, an insulating resin member and includes a cylindrical portion 13a and a flange portion 13b as shown in FIG. 9. The outer shape of the cylindrical portion 13a is, for example, substantially rectangular when viewed from the Y-axis direction, and the inner shape of the cylindrical portion 13a is substantially circular.

[0072] As shown in FIG. 2, the internal space of the cylindrical portion 13a forms an insertion portion 13c into which the +Y-axis side end portion of the holding member 5 of the socket connector 2 is inserted. The inner diameter of the cylindrical portion 13a is substantially equal to the outer diameter of the holding member 5 of the socket connector 2.

[0073] As shown in FIG. 2, an internal thread portion 13d into which the male thread portion 5a of the holding member 5 of the socket connector 2 is screwed is formed on the inner peripheral surface of the cylindrical portion 13a. At this time, a convex portion 13e extending in the Y-axis direction is preferably formed on the outer peripheral surface of the cylindrical portion 13a so that the hand of the operator does not slip when screwing the internal thread portion 13d of the cap 13 onto the male thread portion 5a of the holding member 5 of the socket connector 2, as shown in FIG. 8.

[0074] As shown in FIG. 9, the flange portion 13b protrudes radially inward from the +Y-axis side end portion of the cylindrical portion 13a. A through hole 13f extending in the Y-axis direction is formed substantially at the center of the flange portion 13b when viewed in the Y-axis direction. The diameter of the through hole 13f is larger than the diameter of the second wiring 15.

[0075] As shown in FIG. 10, such a cap 13 is passed through the second wiring 15 so as to cover the +Y-axis side portion of the holding member 12. At this time, when the shrink tube 16 passed through the second wiring 15 is fixed to the -Y-axis side portion of the second wiring 15, the movement of the cap 13 in the +Y-axis direction can be suppressed.

[0076] The biasing member 14 is made of an insulating resin member and can be constituted by, for example, a Teflon (registered trademark) washer as shown in FIG. 9. The biasing member 14 is disposed between the flange portion 12b of the holding member 12 and the flange portion 13b of the cap 13 in a state of being passed through the second wiring 15 and disposed in the insertion portion 13c of the cap 13, as shown in FIG. 10.

[0077] Incidentally, in the illustrated examples such as FIG. 9, two biasing members 14 are provided, but the number of biasing members 14 can be appropriately changed. Further, the biasing member 14 may be constituted by a coil spring or the like. In short, any configuration may be used as long as the holding member 12 can be biased toward the Y-axis - side.

[0078] Next, an example of the assembly process of the socket connector 2 of the connector unit 1 of the present embodiment will be described. The socket connector 2 can be assembled by integrally forming the portion on the Y-axis + side from the end portion on the Y-axis + side of the second cylindrical portion 4b of the socket terminal 4 with the holding member 5 by insert molding.

[0079] Next, an example of the assembly process of the pin connector 3 of the connector unit 1 of the present embodiment will be described. First, the shrink tube 16 is passed through the second wiring 15 and fixed. Then, the conductor 15a of the second wiring 15 is inserted into the insertion portion 10e of the pin terminal 10, and the cylindrical portion 10c is caulked to connect the pin terminal 10 and the second wiring 15.

[0080] Next, the pin terminal 10 is inserted into the contact 11, and the contact 11 is disposed between the tapered portion 10b and the flange portion 10d of the pin terminal 10. Then, the second wiring 15 to which the pin terminal 10 is connected is passed through the through hole 13f of the flange portion 13b of the cap 13 from the Y-axis + side toward the Y-axis - side, and further passed through the biasing member 14.

[0081] Next, the cap 13 and the biasing member 14 are disposed on the Y-axis + side along the second wiring 15, and the pin connector 3 can be assembled by integrally forming the end portion on the Y-axis + side of the flange portion 10d of the pin terminal 10, the cylindrical portion 10c, and the connection portion between the pin terminal 10 and the second wiring 15 with the holding member 12 by insert molding. In the present embodiment, the pin connector 3 includes the second wiring 15, but it may be configured in a state where the second wiring 15 is not connected.

[0082] Next, the process of connecting the socket connector 2 and the pin connector 3 of the connector unit 1 of the present embodiment will be described. For example, with the conductor 6a of the first wiring 6 connected to the socket terminal 4 of the socket connector 2, and with the cap 13 of the pin connector 3 moved along the second wiring 15 to the +Y axis side, the end portion on the -Y axis side of the pin terminal 10 and the contact 11 in the pin connector 3 are inserted into the first insertion portion 4e of the socket terminal 4 in the socket connector 2.

[0083] Then, the portion on the -Y axis side of the holding member 12 in the pin connector 3 is inserted into the insertion portion 5b of the holding member 5 in the socket connector 2, and the end face 12c on the -Y axis side of the holding member 12 in the pin connector 3 is brought into contact with the end face 4h on the +Y axis side of the socket terminal 4 in the socket connector 2.

[0084] At the same time, the end face 12c on the -Y axis side of the holding member 12 in the pin connector 3 is brought into contact with the end face 5c on the -Y axis side of the insertion portion 5b of the holding member 5 in the socket connector 2. Also, the outer peripheral surface of the cylindrical portion 12a of the holding member 12 of the pin connector 3 is brought into contact with the peripheral surface of the insertion portion 5b of the holding member 5 of the socket connector 2.

[0085] At this time, since the holding member 12 of the pin connector 3 is composed of an elastic member, the end face 12c on the -Y axis side of the holding member 12 in the pin connector 3 reliably adheres to the end face 4h on the +Y axis side of the socket terminal 4 in the socket connector 2, and an airtight structure is realized.

[0086] At the same time, the end face 12c on the -Y axis side of the holding member 12 in the pin connector 3 reliably adheres to the end face 5c on the -Y axis side of the insertion portion 5b of the holding member 5 in the socket connector 2, and an airtight structure is realized. Also, the outer peripheral surface of the cylindrical portion 12a of the holding member 12 of the pin connector 3 reliably adheres to the peripheral surface of the insertion portion 5b of the holding member 5 of the socket connector 2, and an airtight structure is realized.

[0087] And, the outer peripheral surface of the socket terminal 4 in the socket connector 2 is airtightly covered by the holding member 5 to realize an airtight structure, and the outer peripheral surface of the pin terminal 10 in the pin connector 3 is airtightly covered by the holding member 12 to realize an airtight structure.

[0088] Next, move the cap 13 of the pin connector 3 along the second wiring 15 to the -Y axis side. While inserting the +Y axis side portions of the holding member 12 of the pin connector 3 and the +Y axis side portion of the holding member 5 of the socket connector 2 into the insertion portion 13c of the cap 13, screw the female screw portion 13d of the cap 13 onto the male screw portion 5a of the holding member 5 of the socket connector 2, thereby connecting the socket connector 2 and the pin connector 3.

[0089] At this time, the biasing member 14 takes a reaction force on the flange portion 13b of the cap 13 to bias the holding member 12 to the -Y axis side, bringing the -Y axis side end face 12c of the holding member 12 in the pin connector 3 into contact with the +Y axis side end face 4h of the socket terminal 4 in the socket connector 2, and also bringing the -Y axis side end face 12c of the holding member 12 in the pin connector 3 into contact with the -Y axis side end face 5c of the insertion portion 5b of the holding member 5 in the socket connector 2.

[0090] In this way, the connector unit 1 of the present embodiment can suppress partial discharge in the connection state between the socket connector 2 and the pin connector 3 by the above-described airtight structure. At this time, in the connector unit 1 of the present embodiment, the holding member 12 that holds the pin terminal 10 of the pin connector 3 is constituted by an elastic member.

[0091] Therefore, compared with the connector unit 100 of Patent Document 1, in the connection state of the socket connector 2 and the pin connector 3, in order to realize the airtight structure around the socket terminal 4 and the pin terminal 10, in addition to the holding member 5 of the socket connector 2 and the holding member 12 of the pin connector 3, it is not necessary to prepare a seal packing, and the airtight structure around the socket terminal 4 and the pin terminal 10 can be realized with a small number of parts. Thereby, the connector unit 1 of the present embodiment can be miniaturized, inexpensively, and easily manufactured compared with the connector unit 100 of Patent Document 1.

[0092] In particular, in the connector unit 1 of the present embodiment, since the holding member 12 of the pin connector 3 is composed of an elastic member, even if a manufacturing error occurs in the holding member 12 or the like, the end face 12c on the Y-axis - side of the holding member 12 in the pin connector 3 can be brought into contact with the end face 4h on the Y-axis + side of the socket terminal 4 in the socket connector 2, and the end face 12c on the Y-axis - side of the holding member 12 in the pin connector 3 can be brought into good contact with the end face 5c on the Y-axis - side of the inserted portion 5b of the holding member 5 in the socket connector 2.

[0093] Further, in the connector unit 1 of the present embodiment, the outer peripheral surface of the cylindrical portion 12a of the holding member 12 of the pin connector 3 is in contact with the peripheral surface of the inserted portion 5b of the holding member 5 of the socket connector 2. Therefore, when the end face 12c on the Y-axis - side of the holding member 12 in the pin connector 3 is in contact with the end face 4h on the Y-axis + side of the socket terminal 4 in the socket connector 2, and the end face 12c on the Y-axis - side of the holding member 12 in the pin connector 3 is in contact with the end face 5c on the Y-axis - side of the inserted portion 5b of the holding member 5 in the socket connector 2, deformation of the holding member 12 of the pin connector 3 in the radial direction of the holding member 12 can be suppressed, and the above-described contact state can be prevented from breaking down.

[0094] Moreover, in the connector unit 1 of the present embodiment, when the end face 4h on the +Y axis side of the socket terminal 4 in the socket connector 2 and the end face 5c on the -Y axis side of the inserted portion 5b of the holding member 5 are arranged substantially flush, the end face 4h on the +Y axis side of the socket terminal 4 in the socket connector 2 and the end face 5c on the -Y axis side of the inserted portion 5b of the holding member 5 can be easily brought into contact with the end face 12c on the -Y axis side of the holding member 12 in the pin connector 3.

[0095] Further, in the connector unit 1 of the present embodiment, when the socket terminal 4 and the holding member 5 are integrally formed by insert molding, a structure in which the holding member 5 hermetically covers the outer peripheral surface of the socket terminal 4 can be easily realized. At this time, when the holding member 5 is formed so as to cover the flange portion 4d of the socket terminal 4, the socket terminal 4 can be firmly fixed to the holding member 5.

[0096] Similarly, in the connector unit 1 of the present embodiment, when the pin terminal 10 and the holding member 12 are integrally formed by insert molding, a structure in which the holding member 12 hermetically covers the outer peripheral surface of the pin terminal 10 and the connection portion between the pin terminal 10 and the second wiring 15 can be easily realized.

[0097] Also, in the connector unit 1 of the present embodiment, when the holding member 12 includes a flange portion 12b, the area where the biasing member 14 contacts the holding member 12 can be increased, and the holding member 12 can be favorably biased toward the -Y axis side.

[0098] Note that the configurations of the socket connector 2 and the pin connector 3 of the present embodiment are examples, and at least, the holding member 12 of the pin connector 3 is made of an elastic member, and in a state where the socket connector 2 and the pin connector 3 are connected, the end face 12c on the -Y axis side of the holding member 12 in the pin connector 3 contacts the end face 4h on the +Y axis side of the socket terminal 4 in the socket connector 2, and the end face 12c on the -Y axis side of the holding member 12 in the pin connector 3 contacts the end face 5c on the -Y axis side of the inserted portion 5b of the holding member 5 in the socket connector 2. Any configuration is acceptable.

[0099] Also, the process of assembling the socket connector 2 and the pin connector 3 of the present embodiment is illustrative, and the order of assembly is not limited.

[0100] <Embodiment 2> FIG. 13 is a perspective view of the state in which the socket connector and the pin connector in the connector unit of the present embodiment are connected, as viewed from the Y-axis - side. FIG. 14 is a cross-sectional view showing the state in which the socket connector and the pin connector in the connector unit of the present embodiment are connected.

[0101] FIG. 15 is an enlarged cross-sectional view showing the state in which the socket connector and the pin connector in the connector unit of the present embodiment are connected. FIG. 16 is a perspective view of the state in which the socket connector and the pin connector in the connector unit of the present embodiment are not connected, as viewed from the Y-axis - side. The connector unit 21 of the present embodiment includes, for example, as shown in FIGS. 13 to 16, a socket connector 22 and a pin connector 23.

[0102] FIG. 17 is a perspective view of the socket connector in the connector unit of the present embodiment, as viewed from the Y-axis + side. FIG. 18 is a view of the socket connector in the connector unit of the present embodiment, as viewed from the X-axis + side. FIG. 19 is a view of the socket connector in the connector unit of the present embodiment, as viewed from the Y-axis + side. FIG. 20 is a cross-sectional view of the socket connector in the connector unit of the present embodiment.

[0103] As shown in FIGS. 17 to 20, the socket connector 22 includes a socket terminal 24, a first holding member 25, a second holding member 26, an insulator 27, a resin member 28, and a shell 29. The socket terminal 24 is made of a conductive metal member and includes a first cylindrical portion 24a, a second cylindrical portion 24b, a partition portion 24c, and a flange portion 24d.

[0104] As shown in FIGS. 14, 15, and 20, the first cylindrical portion 24a has a substantially cylindrical shape and extends in the Y-axis direction. The internal space of the first cylindrical portion 24a forms a first insertion portion 24e into which the Y-axis-side end of the pin terminal 31 of the pin connector 23 is inserted.

[0105] As shown in FIG. 20, the second cylindrical portion 24b has a substantially cylindrical shape and extends in the Y-axis direction. The second cylindrical portion 24b is disposed on the Y-axis + side with respect to the first cylindrical portion 24a and is continuous with the first cylindrical portion 24a in the Y-axis direction.

[0106] As shown in FIG. 20, the central axis of the second cylindrical portion 24b is preferably arranged so as to substantially overlap the central axis of the first cylindrical portion 24a. The internal space of the second cylindrical portion 24b forms a second insertion portion 24f into which the Y-axis + side end of the core wire 30 is inserted. And the socket terminal 24 and the core wire 30 are electrically connected in a state where the Y-axis + side end of the core wire 30 is inserted into the second insertion portion 24f.

[0107] As shown in FIG. 20, the partition portion 24c is disposed between the first cylindrical portion 24a and the second cylindrical portion 24b so as to divide the internal space of the first cylindrical portion 24a and the internal space of the second cylindrical portion 24b.

[0108] As shown in FIGS. 14, 15, and 20, the Y-axis + side surface of the partition portion 24c is preferably formed as a substantially conical surface that expands in diameter as it goes toward the Y-axis + side so that the pin terminal 31 of the pin connector 23 can be inserted well. Also, the Y-axis - side surface of the partition portion 24c is preferably formed as a substantially conical surface that expands in diameter as it goes toward the Y-axis - side so that the core wire 30 can be inserted well.

[0109] As shown in FIG. 20, the flange portion 24d protrudes radially outward from the Y-axis - side end of the first cylindrical portion 24a and has a substantially annular shape when viewed in the Y-axis direction. The flange portion 24d is preferably disposed slightly on the Y-axis + side with respect to the partition portion 24c, for example.

[0110] The first holding member (socket-side holding member) 25 is made of an insulating resin member and, as shown in FIG. 20, hermetically covers the outer peripheral surface of the socket terminal 24. The first holding member 25 has a substantially cylindrical shape and extends in the Y-axis direction. It is preferable that a notch portion 25a, which notches the outer peripheral surface of the first holding member 25, is formed at the end portion on the +Y-axis side of the first holding member 25. The notch portion 25a has a substantially annular shape when viewed from the Y-axis direction.

[0111] For example, as shown in FIG. 20, the first holding member 25 is preferably integrally formed with the socket terminal 24 by insert molding so as to hermetically cover from the end portion on the -Y-axis side to the end portion on the +Y-axis side of the first cylindrical portion 24a on the outer peripheral surface of the socket terminal 24.

[0112] Therefore, for example, as shown in FIG. 20, the inner peripheral surface of the first holding member 25 is in close contact with the outer peripheral surface of the first cylindrical portion 24a and the outer peripheral surface of the flange portion 24d of the socket terminal 24 to realize an airtight structure. At this time, the first holding member 25 protrudes on the +Y-axis side with respect to the socket terminal 24.

[0113] As shown in FIGS. 14, 15, and 20, the internal space of the first holding member 25 that protrudes on the +Y-axis side with respect to the socket terminal 24 forms an insertion portion (i.e., recess) 25b into which the end portion on the -Y-axis side of the first holding member 33 of the pin connector 23 is inserted. And on the end surface 25c on the -Y-axis side of the insertion portion 25b, the end surface 24g on the +Y-axis side of the socket terminal 24 is exposed.

[0114] As shown in FIG. 20, the diameter of the insertion portion 25b is larger than the outer diameter of the first cylindrical portion 24a of the socket terminal 24. And the end surface 25c on the -Y-axis side of the insertion portion 25b is arranged substantially parallel to the XZ plane and is arranged substantially flush with the end surface 24g on the +Y-axis side of the socket terminal 24.

[0115] The second holding member 26 is made of an insulating resin member. The second holding member 26 has, for example, a substantially cylindrical shape as shown in FIG. 20 and extends in the Y-axis direction. The inner peripheral surface of the second holding member 26 has a shape corresponding to the outer peripheral surface of the first holding member 25.

[0116] As shown in FIG. 20, the second holding member 26 holds the first holding member 25 in a state where the first holding member 25 is inserted into the second holding member 26 so as to cover the first holding member 25. At this time, the end portion of the first holding member 25 on the -Y axis side and the end portion of the second holding member 26 on the -Y axis side may be arranged at substantially equal positions in the Y-axis direction.

[0117] For example, as shown in FIG. 20, a male screw portion 26a may be formed on the outer peripheral surface of the second holding member 26. Further, at the end portion of the second holding member 26 on the +Y axis side, for example, as shown in FIGS. 17 and 19, an insertion portion 26b for inserting a tool for screwing and fixing the second holding member 26 into the first through portion 27a of the insulator 27 may be formed.

[0118] The insulator 27 has, for example, a substantially cylindrical shape as shown in FIGS. 17 to 20 and extends in the Y-axis direction. The insulator 27 includes a first through portion 27a, a second through portion 27b, an insertion portion 27c, and a groove portion 27d. The first through portion 27a is arranged in the portion of the insulator 27 on the +Y axis side. The diameter of the first through portion 27a is substantially equal to the outer diameter of the second holding member 26.

[0119] For example, as shown in FIG. 20, a female screw portion 27e may be formed on the peripheral surface of the first through portion 27a. Then, the male screw portion 26a of the second holding member 26 is screwed into the female screw portion 27e of the first through portion 27a, and the second holding member 26 may be fixed to the insulator 27 in a state where the second holding member 26 is inserted into the first through portion 27a.

[0120] As shown in FIG. 20, the second through-hole 27b is continuous with the first through-hole 27a and is disposed on the -Y axis side with respect to the first through-hole 27a. The central axis of the second through-hole 27b may substantially overlap with the central axis of the first through-hole 27a.

[0121] As shown in FIG. 20, the second through-hole 27b includes a first portion 27f and a second portion 27g. The first portion 27f is disposed on the +Y axis side with respect to the second portion 27g. The diameter of the first portion 27f may be smaller, for example, than the outer diameter of the flange portion 24d of the socket terminal 24.

[0122] As shown in FIG. 20, the diameter of the second portion 27g may be larger than the diameter of the first portion 27f. Therefore, a flange portion 27h that protrudes radially inward of the second through-hole 27b is disposed between the first through-hole 27a and the second portion 27g of the second through-hole 27b.

[0123] As a result, as shown in FIG. 20, the first holding member 25 and the second holding member 26 can be positioned with the -Y axis side end of the first holding member 25 and the -Y axis side end of the second holding member 26 in contact with the +Y axis side end of the flange portion 27h. A core wire 30 is inserted into such a second through-hole 27b. At this time, the core wire 30 may protrude from the insulator 27 toward the -Y axis side.

[0124] As shown in FIGS. 14, 15, and 20, the insertion portion 27c is formed at the +Y axis side end of the insulator 27, and the -Y axis side end of the insulator 35 of the pin connector 23 is inserted therein. As shown in FIG. 17, the insertion portion 27c is disposed so as to surround the first through-hole 27a when viewed in the Y axis direction, and is a substantially annular recess.

[0125] As shown in FIGS. 18 and 20, the groove portion 27d is formed on the outer peripheral surface of the insulator 27 in order to gain creepage distance. The groove portion 27d extends in the circumferential direction of the insulator 27 and is disposed at substantially equal intervals in the Y axis direction.

[0126] As shown in FIG. 20, the resin member 28 is filled inside the second through-hole 27b of the insulator 27. The resin member 28 fixes the socket terminal 24 and the core wire 30. The shell 29 includes a cylindrical portion 29a and a flange portion 29b.

[0127] As shown in FIGS. 17 to 20, the cylindrical portion 29a has a substantially cylindrical shape and extends in the Y-axis direction. The cylindrical portion 29a includes, for example, a male screw portion 29c and an inserted portion 29d. The male screw portion 29c is formed on the Y-axis + side portion of the outer peripheral surface of the cylindrical portion 29a. The male screw portion 29c may be, for example, a multi-threaded screw.

[0128] As shown in FIGS. 14, 15, and 20, the inserted portion 29d is formed at the Y-axis + side end of the cylindrical portion 29a, and the Y-axis - side end of the third shell 41 of the pin connector 23 is inserted therein. The inserted portion 29d has a substantially annular shape when viewed from the Y-axis direction, and is a notch portion obtained by notching the inner peripheral surface of the inserted portion 29d. At this time, for example, as shown in FIGS. 17 and 19, a recess 29e extending in the Y-axis direction may be formed in the inserted portion 29d.

[0129] As shown in FIG. 20, the flange portion 29b protrudes radially outward from the cylindrical portion 29a. The flange portion 29b can be used, for example, when fixing the socket connector 22 to the housing of the electronic device. Such a shell 29 is fixed, for example, to the Y-axis + side portion of the insulator 27 with the insulator 27 inserted inside the shell 29.

[0130] FIG. 21 is a perspective view of the pin connector in the connector unit of the present embodiment as viewed from the Y-axis - side. FIG. 22 is a view of the pin connector in the connector unit of the present embodiment as viewed from the X-axis + side. FIG. 23 is a view of the pin connector in the connector unit of the present embodiment as viewed from the Y-axis - side.

[0131] FIG. 24 is a cross-sectional view of the pin connector in the connector unit of the present embodiment. FIG. 25 is an exploded perspective view of the pin terminal, the first holding member, the second holding member, etc. in the connector unit of the present embodiment as viewed from the Y-axis side.

[0132] As shown in FIGS. 21 to 24, the pin connector 23 includes a pin terminal 31, a contact 32, a first holding member 33, a second holding member 34, an insulator 35, a biasing member 36, a resin member 37, a first shell 38, a second shell 39, an insulating member 40, a third shell 41, and a fourth shell 42.

[0133] The pin terminal 31 is made of a conductive metal member and includes a columnar portion 31a, a conical portion 31b, a cylindrical portion 31c, and a flange portion 31d as shown in FIG. 24. The columnar portion 31a has a substantially cylindrical shape and extends in the Y-axis direction. The diameter of the columnar portion 31a is smaller than the inner diameter of the first insertion portion 24e of the socket terminal 24 in the socket connector 22 as shown in FIGS. 14 and 15.

[0134] As shown in FIGS. 24 and 25, the conical portion 31b has a substantially conical shape that tapers as it goes toward the Y-axis side. The conical portion 31b is disposed on the Y-axis side with respect to the columnar portion 31a and is continuous with the columnar portion 31a in the Y-axis direction. The outer diameter of the end portion on the Y-axis + side of the conical portion 31b is preferably substantially equal to the inner diameter of the first insertion portion 24e of the socket terminal 24 in the socket connector 22 as shown in FIGS. 14 and 15.

[0135] As shown in FIGS. 24 and 25, the cylindrical portion 31c is disposed at the end portion on the Y-axis + side of the columnar portion 31a. The cylindrical portion 31c has a substantially cylindrical shape and projects from the columnar portion 31a toward the Y-axis + side. At this time, the central axis of the columnar portion 31a, the central axis of the conical portion 31b, and the central axis of the cylindrical portion 31c are preferably arranged so as to substantially overlap. The core wire 43a of the wiring 43 is electrically connected to the cylindrical portion 31c in a state where the end portion on the Y-axis - side is inserted.

[0136] As shown in FIGS. 24 and 25, the flange portion 31d is disposed on the +Y side with respect to the conical portion 31b. The flange portion 31d protrudes radially outward from the columnar portion 31a and has a substantially annular shape when viewed in the Y-axis direction. As shown in FIGS. 14 and 15, the outer diameter of the flange portion 31d is preferably substantially equal to the inner diameter of the first insertion portion 24e of the socket terminal 24 in the socket connector 22.

[0137] As shown in FIGS. 14 and 15, the length in the Y-axis direction of the -Y side portion with respect to the +Y side end of the flange portion 31d in the pin terminal 31 is preferably substantially equal to the length in the Y-axis direction of the first insertion portion 24e of the socket terminal 24 in the socket connector 22.

[0138] As shown in FIG. 25, the contact 32 has substantially the same shape as the contact 11 of the first embodiment, and is disposed between the conical portion 31b and the flange portion 31d of the pin terminal 31 with the -Y side portion of the columnar portion 31a of the pin terminal 31 inserted into the contact 32.

[0139] The first holding member (first pin-side holding member) 33 is made of an insulating elastic member such as silicon, and hermetically covers the outer peripheral surface of the pin terminal 31 as shown in FIGS. 24 and 25. The first holding member 33 is preferably integrally formed with the pin terminal 31 by insert molding so as to hermetically cover the +Y side portion including the +Y side end of the flange portion 31d in the pin terminal 31.

[0140] As shown in FIGS. 24 and 25, the first holding member 33 includes a cylindrical portion 33a, a flange portion 33b, and an extension portion 33c. The cylindrical portion 33a has a substantially cylindrical shape and extends in the Y-axis direction.

[0141] As shown in FIGS. 14 and 15, the outer diameter of the cylindrical portion 33a is substantially equal to the diameter of the insertion portion 25b of the first holding member 25 of the socket connector 22. The end surface on the -Y side of the cylindrical portion 33a (that is, the end surface on the -Y side of the first holding member 33) 33d is disposed substantially parallel to the XZ plane as shown in FIGS. 24 and 25.

[0142] As shown in FIGS. 24 and 25, the flange portion 33b protrudes radially outward from the end portion on the +Y axis side of the cylindrical portion 33a. The flange portion 33b has a substantially annular shape when viewed in the Y-axis direction. The end face 33e on the -Y axis side of the flange portion 33b may be formed, for example, as a substantially conical surface that expands in diameter as it goes toward the +Y axis side.

[0143] As shown in FIGS. 24 and 25, the end face 33f on the +Y axis side of the flange portion 33b may be arranged substantially parallel to the XZ plane. Further, flat surfaces 33g substantially parallel to the YZ plane may be formed, for example, at the end portion on the +X axis side and the end portion on the -X axis side of the flange portion 33b.

[0144] As shown in FIGS. 24 and 25, the extension portion 33c has a substantially cylindrical shape and protrudes from the cylindrical portion 33a toward the +Y axis side. The outer diameter of the extension portion 33c may be, for example, smaller than the outer diameter of the cylindrical portion 33a.

[0145] As shown in FIGS. 24 and 25, the inner peripheral surface of the cylindrical portion 33a and the inner peripheral surface of the extension portion 33c are in close contact with the portion between the end portion on the +Y axis side of the flange portion 31d on the outer peripheral surface of the pin terminal 31 and the cylindrical portion 31c to realize an airtight structure. Therefore, the portion on the -Y axis side with respect to the end portion on the +Y axis side of the flange portion 31d in the pin terminal 31 and the cylindrical portion 31c of the pin terminal 31 are exposed from the first holding member 33.

[0146] The second holding member (second pin-side holding member) 34 is made of an insulating resin member. The second holding member 34 has a substantially cylindrical shape and extends in the Y-axis direction, for example, as shown in FIGS. 24 and 25. The inner peripheral surface of the second holding member 34 has a shape corresponding to the portion on the -Y axis side including the end portion on the +Y axis side of the flange portion 33b on the outer peripheral surface of the first holding member 33.

[0147] As shown in FIG. 24, the second holding member 34 holds the first holding member 33 in a state where the first holding member 33 is inserted into the second holding member 34 so as to cover a portion on the -Y axis side including the end portion on the +Y axis side of the flange portion 33b in the first holding member 33.

[0148] At this time, the end portion on the +Y axis side of the flange portion 33b of the first holding member 33 (that is, the end face 33f on the +Y axis side of the flange portion 33b) and the end portion on the +Y axis side of the second holding member 34 are arranged at substantially the same position in the Y-axis direction. And the first holding member 33 protrudes from the second holding member 34 toward the -Y axis side.

[0149] On the outer peripheral surface of the second holding member 34, for example, as shown in FIG. 24, a male screw portion 34a may be formed. Further, at the end portion on the -Y axis side of the second holding member 34, as shown in FIG. 23, an insertion portion 34b for inserting a tool when screwing and fixing the second holding member 34 into the first through portion 35a of the insulator 35 may be formed.

[0150] Here, FIG. 26 is a diagram for explaining the engagement structure between the second holding member of the pin connector and the biasing member in the connector unit of the present embodiment. At the end portion on the +Y axis side of the second holding member 34, as shown in FIG. 26, a reduced-diameter portion 34c having a diameter smaller than that of the portion on the -Y axis side of the second holding member 34 may be formed.

[0151] An engaged portion 34d is formed in the reduced-diameter portion 34c. The engaging portion 36c of the biasing member 36 is engaged with the engaged portion 34d. The engaged portion 34d may be formed with a flat portion 34e, an insertion portion 34f, and a concave portion 34g.

[0152] As shown in FIG. 26, the flat portion 34e is formed so as to notch the end portions on the +X axis side and the -X axis side of the reduced-diameter portion 34c. The flat portion 34e is substantially parallel to the YZ plane and faces in the X-axis direction.

[0153] The inserted parts 34f are formed in respective flat parts 34e and are groove parts extending in the Z-axis direction as shown in FIG. 26. The end parts on the +Z-axis side and the -Z-axis side of the inserted parts 34f are open. The recessed parts 34g are formed at the bottoms of the inserted parts 34f and are arranged at intervals in the Z-axis direction in respective inserted parts 34f. The recessed parts 34g are recessed toward the other inserted parts 34f.

[0154] The insulator 35 is made of an insulating resin member. As shown in FIG. 24, the insulator 35 has a substantially cylindrical shape and extends in the Y-axis direction. The insulator 35 includes a first through-hole 35a, a second through-hole 35b, a first inserted part 35c, and a second inserted part 35d.

[0155] Inside the first through-hole 35a, as shown in FIG. 24, a pin terminal 31, a second holding member 34 that holds the first holding member 33, and a wiring 43 are inserted. The diameter of the part on the -Y-axis side of the first through-hole 35a is substantially equal to the outer diameter of the second holding member 34.

[0156] On the part on the -Y-axis side of the circumferential surface of the first through-hole 35a, for example, as shown in FIG. 24, a female screw part 35e may be formed. Then, the male screw part 34a of the second holding member 34 is screwed into the female screw part 35e of the first through-hole 35a, and the second holding member 34 may be fixed to the insulator 35 in a state of being inserted into the first through-hole 35a.

[0157] Also, in the first through-hole 35a, as shown in FIG. 24, a first stepped part 35f and a second stepped part 35g may be formed. The first stepped part 35f is arranged at a boundary part where the diameter is reduced compared to the part on the -Y-axis side of the first through-hole 35a.

[0158] As shown in FIG. 24, the second stepped portion 35g is disposed at a boundary portion where the diameter is enlarged as compared with a portion where the diameter is reduced with the first stepped portion 35f in the first through-hole 35a as a boundary. A dielectric member 43b that covers the core wire 43a in the wiring 43 may be disposed in a portion on the +Y axis side with respect to the second stepped portion 35g in the first through-hole 35a.

[0159] As shown in FIG. 24, the second through-hole 35b is continuous with the first through-hole 35a and is disposed on the -Y axis side with respect to the first through-hole 35a. Inside the second through-hole 35b, a portion that protrudes from the second holding member 34 toward the -Y axis side together with the first holding member 33 of the pin terminal 31 is disposed.

[0160] As shown in FIGS. 14 and 15, a portion radially inside the insulator 27 is inserted into the second through-hole 35b with respect to the inserted portion 27c of the insulator 27 in the socket connector 22. At this time, the end portion on the -Y axis side of the insulator 35 is inserted into the inserted portion 27c of the insulator 27 of the socket connector 22.

[0161] As shown in FIG. 24, the first inserted portion 35c is disposed at the end portion on the -Y axis side of the insulator 35. The first inserted portion 35c is a notch portion obtained by notching the end portion on the -Y axis side of the outer peripheral surface of the insulator 35, and has a substantially annular shape when viewed from the Y-axis direction. As shown in FIGS. 14 and 15, a portion radially outside the insulator 27 is inserted into the first inserted portion 35c with respect to the inserted portion 27c of the insulator 27 in the socket connector 22.

[0162] As shown in FIG. 24, the second inserted portion 35d is disposed at the end portion on the +Y axis side of the insulator 35. The second inserted portion 35d is a notch portion obtained by notching the end portion on the +Y axis side of the outer peripheral surface of the insulator 35, and has a substantially annular shape when viewed from the Y-axis direction.

[0163] The biasing member 36 is made of, for example, an insulating elastic member. The biasing member 36 may be, for example, a plate body having a substantially annular shape as viewed from the Y-axis direction as shown in FIG. 24. The biasing member 36 is disposed inside the first through-hole 35a of the insulator 35.

[0164] Then, as shown in FIG. 24, with the extension 33c of the first holding member 33 passed through the inside of the biasing member 36, the flange portion 33b of the first holding member 33 and the second holding member 34 are sandwiched between the first step portion 35f of the first through-hole 35a of the insulator 35.

[0165] At this time, the biasing member 36 and the second holding member 34 sandwich the flange portion 33b of the first holding member 33. Thereby, the positions of the pin terminal 31 and the first holding member 33 in the Y-axis direction can be restricted, and when the first holding member 33 is pushed in the +Y-axis side, the first holding member 33 can be biased in the -Y-axis side by the elastic force of the biasing member 36.

[0166] The biasing member 36 may be divided into a plurality of divided pieces, although the detailed function will be described later. The biasing member 36 may be divided, for example, into a first divided piece 36a and a second divided piece 36b as shown in FIG. 26. Here, since the first divided piece 36a and the second divided piece 36b have a plane-symmetric configuration with the XY plane as the symmetric plane, the first divided piece 36a will be described as a representative.

[0167] The first divided piece 36a is formed by splitting the biasing member 36 in half in the Z-axis direction as shown in FIG. 26, and includes an engaging portion 36c. The engaging portion 36c includes a concave portion 36d, an insertion portion 36e, and a convex portion 36f. The concave portion 36d is formed at the -Y-axis side end of the first divided piece 36a and is a groove portion extending in the Z-axis direction.

[0168] As shown in Fig. 26, the insertion part 36e protrudes inward from the X-axis + side end and the X-axis - side end of the recess 36d in the X-axis direction. The insertion parts 36e face each other in the X-axis direction and extend in the Z-axis direction. The convex part 36f protrudes inward from each insertion part 36e in the X-axis direction.

[0169] When the reduced-diameter part 34c of the second holding member 34 is inserted into the recess 36d of the first split piece 36a from the Z-axis + side, and the insertion part 36e of the first split piece 36a is inserted into the inserted part 34f of the second holding member 34, the convex part 36f of the first split piece 36a is engaged with the recess 34g of the second holding member 34, thereby fixing the first split piece 36a to the second holding member 34. Thus, the first split piece 36a and the second split piece 36b are fixed while surrounding the extension part 33c of the first holding member 33.

[0170] As shown in Fig. 24, the resin member 37 is filled in the part on the Y-axis + side with respect to the biasing member 36 inside the first through-hole 35a of the insulator 35. The resin member 37 fixes the part on the Y-axis + side with respect to the pin terminal 31, the connection part between the pin terminal 31 and the core wire 43a of the wiring 43, and the connection part between the wiring 43 and the pin terminal 31.

[0171] The first shell 38 is made of a conductive metal member. As shown in Fig. 24, the first shell 38 includes a cylindrical part 38a and a flange part 38b. The cylindrical part 38a has a substantially cylindrical shape and extends in the Y-axis direction. The flange part 38b protrudes radially inward from the Y-axis + side end of the cylindrical part 38a. The flange part 38b has a substantially annular shape when viewed in the Y-axis direction.

[0172] As shown in FIG. 24, the first shell 38 is arranged to cover the +Y-axis side portion of the insulator 35. At this time, the wiring 43 is passed through the inside of the flange portion 38b of the first shell 38. And the cylindrical portion 38a of the first shell 38 is inserted into the second insertion portion 35d of the insulator 35 so as to cover the +Y-axis side portion of the insulator 35.

[0173] The second shell 39 is made of a conductive metal member. The second shell 39 includes a cylindrical portion 39a and a flange portion 39b as shown in FIG. 24. The cylindrical portion 39a has a substantially cylindrical shape and extends in the Y-axis direction. The flange portion 39b projects radially inward of the cylindrical portion 39a from the +Y-axis side end of the cylindrical portion 39a. The flange portion 39b has a substantially annular shape when viewed in the Y-axis direction.

[0174] As shown in FIG. 24, the second shell 39 is arranged to cover the first shell 38. At this time, the wiring 43 is passed through the inside of the flange portion 39b of the second shell 39. And the ground shield 43c of the wiring 43 is sandwiched between the first shell 38 and the second shell 39 via a conductive spacer 44 to form a ground path. The cylindrical portion 39a of the second shell 39 projects from the first shell 38 to the -Y-axis side, and for example, a female screw portion 39c may be formed on the inner peripheral surface of the projecting portion.

[0175] As shown in FIGS. 14 and 24, the insulating member 40 covers the portion of the insulating member 43d of the wiring 43 that has been peeled off so that the portion of the ground shield 43c in the wiring 43 that is exposed does not protrude from the pin connector 23. The insulating member 40 is passed through the inside of the insulating member 40 and is passed through the inside of the flange portion 39b of the second shell 39 with the wiring 43 passed through it.

[0176] Here, for example, as shown in FIGS. 21 and 22, a flat portion 39d substantially parallel to the YZ plane projects from the flange portion 39b of the second shell 39 to the + side of the Y axis, and the insulating member 40 is sandwiched from the X-axis direction by a sandwiching member 45 spanned over the flat portions 39d arranged on both sides in the Z-axis direction with the wiring 43 therebetween. Thereby, the wiring 43 can be firmly fixed to the second shell 39.

[0177] The third shell 41 is made of a conductive metal member. As shown in FIG. 24, the third shell 41 has a substantially cylindrical shape and extends in the Y-axis direction. The third shell 41 is rotatably held around the Y axis with respect to the insulator 35 in a state where the insulator 35 is inserted into the third shell 41 so as to cover the portion on the - side of the Y axis of the insulator 35.

[0178] At this time, as shown in FIG. 24, the end portion on the - side of the Y axis of the third shell 41 is disposed at a position substantially equal to the end portion on the - side of the Y axis of the insulator 35 in the Y-axis direction. Also, the portion on the + side of the Y axis of the third shell 41 is disposed between the insulator 35 and the cylindrical portion 39a of the second shell 39.

[0179] Here, for example, as shown in FIG. 24, a male screw portion 41a may be formed on the portion on the + side of the Y axis of the outer peripheral surface of the third shell 41. And the male screw portion 41a of the third shell 41 may be screwed into the female screw portion 39c of the cylindrical portion 39a of the second shell 39. Thereby, the third shell 41 can be fixed to the second shell 39.

[0180] Also, for example, as shown in FIGS. 21 and 23, a convex portion 41b to be inserted into the recess 29e of the shell 29 of the socket connector 22 may be formed on the portion on the - side of the Y axis of the outer peripheral surface of the third shell 41. The convex portion 41b extends in the Y-axis direction.

[0181] The fourth shell 42 is made of a conductive metal member. As shown in FIGS. 21 and 24, the fourth shell 42 has a substantially cylindrical shape and extends in the Y-axis direction. The inner diameter of the fourth shell 42 is larger than the outer diameter of the third shell 41. And on the inner peripheral surface of the fourth shell 42, as shown in FIG. 15, a female screw portion 42a into which the male screw portion 29c of the shell 29 of the socket connector 22 is screwed is formed.

[0182] As shown in FIG. 24, the fourth shell 42 rotatably holds the third shell 41 around the Y-axis in a state where the third shell 41 is inserted into the fourth shell 42 so as to cover the portion of the third shell 41 that protrudes from the second shell 39 toward the +Y-axis side.

[0183] Next, an example of the flow of assembling the socket connector 22 in the connector unit 21 of the present embodiment will be described. First, the end portion of the core wire 30 on the +Y-axis side is electrically connected to the second cylindrical portion 24b of the socket terminal 24. Then, the socket terminal 24 is integrally formed with the first holding member 25 by insert molding, and the socket terminal 24 is covered with the first holding member 25.

[0184] Next, the first holding member 25 is inserted into the second holding member 26, and the first holding member 25 is covered with the second holding member 26. Then, the core wire 30 is passed through the first through portion 27a and the second through portion 27b of the insulator 27 from the +Y-axis side, and the male screw portion 26a of the second holding member 26 is screwed into the female screw portion 27e of the insulator 27.

[0185] Thereby, the socket terminal 24, the first holding member 25, and the second holding member 26 are inserted into the first through portion 27a of the insulator 27, and the end portion of the first holding member 25 on the -Y-axis side and the end portion of the second holding member 26 on the -Y-axis side are brought into contact with the flange portion 27h of the insulator 27.

[0186] As a result, the socket terminal 24, the first holding member 25, the second holding member 26, and the core wire 30 are fixed to the insulator 27. At this time, it is advisable to insert a tool into the insertion portion 26b of the second holding member 26 and screw in the second holding member 26. Thereby, the second holding member 26 can be easily screwed into and fixed to the first through portion 27a of the insulator 27.

[0187] Note that the shell 29 may be fixed to the insulator 27 in advance. Thereafter, the socket connector 22 can be assembled by filling the second through portion 27b of the insulator 27 with the resin member 28.

[0188] Next, an example of the process of assembling the pin connector in the connector unit of the present embodiment will be described. First, the contact 32 is passed through and fixed to the pin terminal 31, and the end portion of the core wire 43a of the wiring 43 on the Y-axis - side is electrically connected to the cylindrical portion 31c of the pin terminal 31. Then, the pin terminal 31 and the wiring 43 are passed through the inside of the flange portion 39b of the second shell 39 via the insulating member 40, and the insulating member 43d of the wiring 43 is peeled off to expose the ground shield 43c.

[0189] Next, the pin terminal 31, the core wire 43a of the wiring 43, and the dielectric member 43b are passed through the inside of the flange portion 38b of the first shell 38. At this time, the ground shield 43c of the wiring 43 is disposed between the first shell 38 and the second shell 39.

[0190] Then, the first shell 38 is inserted into the second shell 39, and the ground shield 43c of the wiring 43 is sandwiched between the first shell 38 and the second shell 39 via the spacer 44. At this time, the core wire 43a and the dielectric member 43b of the wiring 43 are pulled in the Y-axis - side so that the subsequent steps can be performed with respect to the first shell 38 and the second shell 39.

[0191] Next, pass the pin terminal 31, the core wire 43a of the wiring 43, and the dielectric member 43b through the first through-hole 35a and the second through-hole 35b of the insulator 35, and expose the core wire 43a and the dielectric member 43b of the wiring 43 from the insulator 35 to the -Y axis side. At this time, it is preferable that the third shell 41 and the fourth shell 42 are attached to the insulator 35.

[0192] Next, integrally form the pin terminal 31 with the first holding member 33 by insert molding, and cover the pin terminal 31 with the first holding member 33. Then, insert the first holding member 33 into the second holding member 34, and cover the first holding member 33 with the second holding member 34.

[0193] Next, while inserting the concave portion 36d of the first split piece 36a of the biasing member 36 into the reduced-diameter portion 34c of the second holding member 34 from the +Z axis side, insert the insertion portion 36e of the first split piece 36a into the insertion portion 34f of the second holding member 34. Then, engage the convex portion 36f of the first split piece 36a with the concave portion 34g of the second holding member 34 to fix the first split piece 36a to the second holding member 34.

[0194] Similarly, while inserting the concave portion 36d of the second split piece 36b of the biasing member 36 into the reduced-diameter portion 34c of the second holding member 34 from the -Z axis side, insert the insertion portion 36e of the second split piece 36b into the insertion portion 34f of the second holding member 34. Then, engage the convex portion 36f of the second split piece 36b with the concave portion 34g of the second holding member 34 to fix the second split piece 36b to the second holding member 34.

[0195] By adopting such a split structure for the biasing member 36, even after the wiring 43 is passed through the first shell 38 and the second shell 39 and the pin terminal 31 is insert-molded onto the first holding member 33, the first holding member 33 onto which the pin terminal 31 is insert-molded can be easily surrounded by the biasing member 36. As a result, the first split piece 36a and the second split piece 36b are fixed to the second holding member 34 while surrounding the extension portion 33c of the first holding member 33.

[0196] Next, draw the wiring 43 into the +Y axis side. Along with this, while drawing the pin terminal 31, the first holding member 33, the second holding member 34, and the biasing member 36 into the inside of the first through-hole 35a and the inside of the second through-hole 35b of the insulator 35, thread the male screw portion 34a of the second holding member 34 into the female screw portion 35e of the insulator 35, and bring the +Y axis side end portion of the biasing member 36 into contact with the first step portion 35f of the insulator 35.

[0197] Here, it is advisable to insert a tool into the insertion portion 34b of the second holding member 34 and thread the second holding member 34. Thereby, the second holding member 34 can be easily threaded into and fixed to the first through-hole 35a of the insulator 35.

[0198] At this time, the flange portion 33b of the first holding member 33 is sandwiched between the biasing member 36 and the second holding member 34. And the biasing member 36 is sandwiched between the second holding member 34 and the first step portion 35f of the insulator 35. Also, the pin terminal 31 is fixed to the first holding member 33. Therefore, the pin terminal 31 and the first holding member 33 are fixed to the insulator 35.

[0199] In such a state, fill the first through-hole 35a of the insulator 35 with the resin member 37. At this time, since the pin terminal 31 and the first holding member 33 are fixed to the insulator 35 as described above, for example, it is not necessary to fix the wiring 43 with a jig or the like so that the pin terminal 31 and the first holding member 33 do not move in the Y-axis direction until the resin member 37 hardens, and the pin terminal 31 can be easily and accurately arranged.

[0200] Next, draw the insulator 35 to which the wiring 43 and the pin terminal 31 etc. are fixed into the +Y axis side. Along with this, while inserting the +Y axis side portion of the insulator 35 into the inside of the first shell 38, thread the male screw portion 41a of the third shell 41 into the female screw portion 39c of the second shell 39, and insert the +Y axis side portion of the third shell 41 between the insulator 35 and the second shell 39.

[0201] After that, the insulating member 40 is sandwiched from the X-axis direction by the sandwiching members 45 spanned over the flat portions 39d arranged on both sides in the Z-axis direction with the wiring 43 in the second shell 39 in between, and the wiring 43 is fixed to the second shell 39, whereby the pin connector 23 can be assembled.

[0202] Next, the process of connecting the socket connector 22 and the pin connector 23 of the connector unit 21 of the present embodiment will be described. For example, as shown in FIGS. 14 and 15, while inserting the radially inner portion of the insulator 27 with respect to the inserted portion 27c of the insulator 27 in the socket connector 22 into the second through portion 35b of the insulator 35 in the pin connector 23, the +Y-axis side portion of the insulator 27 in the socket connector 22 is inserted into the first inserted portion 35c of the insulator 35 in the pin connector 23.

[0203] At the same time, as shown in FIGS. 14 and 15, while inserting the -Y-axis side portion of the insulator 35 in the pin connector 23 into the inserted portion 27c of the insulator 27 in the socket connector 22, the -Y-axis side portion of the third shell 41 is inserted into the inserted portion 29d of the shell 29 in the socket connector 22.

[0204] At this time, the convex portion 41b of the third shell 41 in the pin connector 23 is inserted into the concave portion 29e of the shell 29 of the socket connector 22. Thereby, the relative displacement around the Y-axis between the socket connector 22 and the pin connector 23 can be suppressed.

[0205] Then, as shown in FIGS. 14 and 15, the -Y-axis side portion of the pin terminal 31 and the contact 32 in the pin connector 23 are inserted into the first inserted portion 24e of the socket terminal 24 in the socket connector 22.

[0206] Also, as shown in FIGS. 14 and 15, the Y-axis - side end of the first holding member 33 in the pin connector 23 is inserted into the insertion portion 25b of the first holding member 25 in the socket connector 22, and the Y-axis - side end face 33d of the first holding member 33 in the pin connector 23 is brought into contact with the Y-axis + side end face 24g of the socket terminal 24 in the socket connector 22.

[0207] At the same time, as shown in FIGS. 14 and 15, the Y-axis - side end face 33d of the first holding member 33 in the pin connector 23 is brought into contact with the Y-axis - side end face 25c of the insertion portion 25b of the first holding member 25 in the socket connector 22. Also, the outer peripheral surface of the cylindrical portion 33a of the first holding member 33 of the pin connector 23 is brought into contact with the peripheral surface of the insertion portion 25b of the first holding member 25 of the socket connector 22.

[0208] At this time, since the first holding member 33 of the pin connector 23 is composed of an elastic member, the Y-axis - side end face 33d of the first holding member 33 in the pin connector 23 is surely in close contact with the Y-axis + side end face 24g of the socket terminal 24 in the socket connector 22, and an airtight structure is realized.

[0209] At the same time, the Y-axis - side end face 33d of the first holding member 33 in the pin connector 23 is surely in close contact with the Y-axis - side end face 25c of the insertion portion 25b of the first holding member 25 in the socket connector 22, and an airtight structure is realized. Also, the outer peripheral surface of the cylindrical portion 33a of the first holding member 33 of the pin connector 23 is surely in close contact with the peripheral surface of the insertion portion 25b of the first holding member 25 of the socket connector 22, and an airtight structure is realized.

[0210] And, the outer peripheral surface of the socket terminal 24 in the socket connector 22 is hermetically covered by the first holding member 25, and an airtight structure is realized. The outer peripheral surface of the pin terminal 31 in the pin connector 23 is hermetically covered by the first holding member 33, and an airtight structure is realized.

[0211] Next, by rotating the fourth shell 42 of the pin connector 23 and screwing the female thread portion 42a of the fourth shell 42 into the male thread portion 29c of the shell 29 in the socket connector 22, the socket connector 2 and the pin connector 3 can be connected.

[0212] At this time, in the pin connector 23, the biasing member 36 reacts against the first step portion 35f of the insulator 35 to bias the first holding member 33 toward the Y-axis negative side, and the Y-axis negative side end face 33d of the first holding member 33 in the pin connector 23 is brought into contact with the Y-axis positive side end face 24g of the socket terminal 24 in the socket connector 22. At the same time, the Y-axis negative side end face 33d of the first holding member 33 in the pin connector 23 can be brought into contact with the Y-axis negative side end face 25c of the inserted portion 25b of the first holding member 25 in the socket connector 22.

[0213] Thus, also in the connector unit 21 of the present embodiment, partial discharge in the connected state of the socket connector 22 and the pin connector 23 can be suppressed by the above-described airtight structure. At this time, in the connector unit 21 of the present embodiment, the first holding member 33 that holds the pin terminal 31 of the pin connector 23 is formed of an elastic member.

[0214] Therefore, compared with the connector unit 100 of Patent Document 1, in order to realize an airtight structure around the socket terminal 24 and the pin terminal 31 in the connected state of the socket connector 22 and the pin connector 23, in addition to the first holding member 25 of the socket connector 22 and the first holding member 33 of the pin connector 23, there is no need to prepare a seal packing, and the airtight structure around the socket terminal 24 and the pin terminal 31 can be realized with a small number of parts. As a result, the connector unit 21 of the present embodiment can also be miniaturized, manufactured at low cost, and easily compared with the connector unit 100 of Patent Document 1.

[0215] In particular, in the connector unit 21 of the present embodiment, since the biasing member 36 has a split structure, the first holding member 33 in which the pin terminal 31 is insert-molded can be easily surrounded by the biasing member 36.

[0216] Moreover, in the connector unit 21 of the present embodiment, when the first holding member 33 to which the pin terminal 31 is fixed is sandwiched between the biasing member 36 and the second holding member 34 and fixed to the insulator 35, for example, until the resin member 37 hardens, there is no need to fix the wiring 43 with a jig or the like so that the pin terminal 31 and the first holding member 33 do not move in the Y-axis direction, and the pin terminal 31 can be easily and accurately arranged.

[0217] Note that the configurations of the socket connector 22 and the pin connector 23 of the present embodiment are examples, and at least the first holding member 33 of the pin connector 23 is made of an elastic member. In a state where the socket connector 22 and the pin connector 23 are connected, the end face 33d on the Y-axis - side of the first holding member 33 in the pin connector 23 contacts the end face 24g on the Y-axis + side of the socket terminal 24 in the socket connector 22, and the end face 33d on the Y-axis - side of the first holding member 33 in the pin connector 23 contacts the end face 25c on the Y-axis - side of the inserted portion 25b of the first holding member 25 in the socket connector 22, and it is sufficient that the biasing member 36 has a split structure.

[0218] Also, the flow of assembling the socket connector 22 and the pin connector 23 of the present embodiment is an example, and the order of assembly is not limited.

[0219] The present disclosure is not limited to the above-described embodiments, and can be appropriately modified without departing from the gist.

Description of Reference Numerals

[0220] 1 Connector unit 2 Socket connector 3 Pin connector 4 Socket terminal, 4a First cylindrical portion, 4b Second cylindrical portion, 4c Partition portion, 4d Flange portion, 4e First inserted portion, 4f Second inserted portion, 4g Notch portion, 4h End face of the socket terminal on the + side of the Y axis 5 Holding member, 5a Male screw portion, 5b Inserted portion, 5c End face of the inserted portion on the - side of the Y axis, 5d Flat surface 6 First wiring, 6a Conductor 10 Pin terminal, 10a Columnar portion, 10b Tapered portion, 10c Cylindrical portion, 10d Flange portion, 10e Inserted portion 11 Contact, 11a First cylindrical portion, 11b Second cylindrical portion, 11c Leaf spring body, 11d Contact point 12 Holding member, 12a Cylindrical portion, 12b Flange portion, 12c End face of the cylindrical portion on the - side of the Y axis, 12d Flat surface 13 Cap, 13a Cylindrical portion, 13b Flange portion, 13c Inserted portion, 13d Female screw portion, 13e Protrusion, 13f Through hole 14 Biasing member 15 Second wiring, 15a Conductor 16 Shrink tube AX1 Central axis of the second cylindrical portion of the socket terminal AX2 Central axis of the first cylindrical portion of the socket terminal AX3 Central axis of the tapered portion of the pin terminal AX4 Central axis of the columnar portion of the pin terminal AX5 Central axis of the cylindrical portion of the pin terminal 21 Connector unit 22 Socket connector 23 Pin connector 24 Socket terminal, 24a First cylindrical portion, 24b Second cylindrical portion, 24c Partition portion, 24d Flange portion, 24e First inserted portion, 24f Second inserted portion, 24g End face of the socket terminal on the + side of the Y axis 25 First holding member, 25a Notch portion, 25b Inserted portion, 25c End face of the inserted portion on the - side of the Y axis 26 Second holding member, 26a Male screw portion, 26b Inserted portion 27 Insulator, 27a First through-hole, 27b Second through-hole, 27c Inserted portion, 27d Groove portion, 27e Female thread portion, 27f First portion, 27g Second portion, 27h Flange portion 28 Resin member 29 Shell, 29a Cylindrical portion, 29b Flange portion, 29c Male thread portion, 29d Inserted portion, 29e Concave portion 30 Core wire 31 Pin terminal, 31a Columnar portion, 31b Tapered portion, 31c Cylindrical portion, 31d Flange portion 32 Contact 33 First holding member, 33a Cylindrical portion, 33b Flange portion, 33c Extension portion, 33d End face on the Y-axis - side of the cylindrical portion, 33e End face on the Y-axis - side of the flange portion, 33f End face on the Y-axis + side of the flange portion, 33g Flat surface 34 Second holding member, 34a Male thread portion, 34b Inserted portion, 34c Reduced-diameter portion, 34d Engaged portion, 34e Flat portion, 34f Inserted portion, 34g Concave portion 35 Insulator, 35a First through-hole, 35b Second through-hole, 35c First inserted portion, 35d Second inserted portion, 35e Female thread portion, 35f First step portion, 35g Second step portion 36 Biasing member, 36a First split piece, 36b Second split piece, 36c Engaging portion, 36d Concave portion, 36e Insertion portion, 36f Convex portion 37 Resin member 38 First shell, 38a Cylindrical portion, 38b Flange portion 39 Second shell, 39a Cylindrical portion, 39b Flange portion, 39c Female thread portion, 39d Flat portion 40 Insulating member 41 Third shell, 41a Male thread portion, 41b Convex portion 42 Fourth shell, 42a Female thread portion 43 Wiring, 43a Core wire, 43b Dielectric member, 43c Ground shield, 43d Insulating member 44 Spacer 45 Clamping member 100 Connector unit 101 Substrate, 101a Bottomed cylindrical portion 102-pin terminal 103-pin connector 104 base, 104a holding cylinder 105 socket terminal 106 socket connector 107 sealing packing

Claims

1. a socket connector having a socket terminal and a socket side holding member that airtightly covers an outer peripheral surface of the socket terminal; a pin connector including a pin terminal connected to the socket terminal and a pin side holding member airtightly covering an outer peripheral surface of the pin terminal; Equipped with the socket side holding member is formed so as to surround an end face of the socket terminal on a side connected to the pin connector, and has a recess into which an end of the pin side holding member on a side connected to the socket connector is inserted when the socket connector and the pin connector are connected to each other, The pin-side holding member is made of an elastic member, A connector unit in which, inside the recess of the socket side holding member when the socket connector and the pin connector are connected, the end face of the socket terminal on the connection side with the pin connector contacts the pin side holding member, and the end of the pin side holding member on the connection side with the socket connector contacts the bottom surface of the recess of the socket side holding member.

2. 2. The connector unit according to claim 1, wherein when the socket connector and the pin connector are connected, the peripheral surface of the end of the pin side holding member on the connection side with the socket connector contacts the peripheral surface of the recess of the socket side holding member.

3. 3. The connector unit according to claim 1, wherein the end face of the socket terminal on the connection side with the pin connector and the bottom surface of the recess of the socket side holding member are flush with each other inside the recess of the socket side holding member.

4. 3. The connector unit according to claim 1, wherein the pin connector is provided with a biasing member that biases the pin side holding member toward the connection side with the socket connector when the socket connector and the pin connector are connected and the pin side holding member is pushed in the opposite direction to the connection side with the socket connector.

5. The connector unit according to claim 4 , wherein the pin side holding member includes a flange portion that is pressed by the biasing member.

6. 3. The connector unit according to claim 1, wherein said socket side holding member is integrally formed with said socket terminal by insert molding.

7. The socket terminal includes a flange portion, The connector unit according to claim 6 , wherein the socket side holding member is formed so as to cover a flange portion of the socket terminal.

8. 3. The connector unit according to claim 1, wherein the pin side holding member is integrally formed with the pin terminal by insert molding.

9. a socket connector having a socket terminal and a socket side holding member that airtightly covers an outer peripheral surface of the socket terminal; a pin connector including a pin terminal to be connected to the socket terminal, a first pin side holding member airtightly covering an outer peripheral surface of the pin terminal, and a biasing member biasing the first pin side holding member toward a connection side with the socket connector when the first pin side holding member is pressed in a side opposite to a connection side with the socket connector; Equipped with the socket side holding member is formed so as to surround an end face of the socket terminal on a side connected to the pin connector, and has a recess into which an end of the first pin side holding member on a side connected to the socket connector is inserted when the socket connector and the pin connector are connected to each other; the first pin side holding member is made of an elastic member, inside the recess of the socket side holding member when the socket connector and the pin connector are connected, an end face of the socket terminal on the side connecting with the pin connector contacts the first pin side holding member, and an end of the first pin side holding member on the side connecting with the socket connector contacts a bottom surface of the recess of the socket side holding member, the first pin side holding member has a flange portion that is pressed by the biasing member, and an extension portion that extends further than the flange portion toward a side opposite to a connection side with the socket connector, A connector unit, wherein the urging member is made up of a plurality of divided pieces and is arranged so as to surround the extension portion of the first pin side holding member.

10. The pin connector comprises: a second pin side holding member that holds the first pin side holding member; an insulator having a through portion into which the second pin side holding member is inserted while holding the first pin side holding member; a resin member filled in a portion of the insulator that is opposite to a connection side of the second pin side holding member with respect to the socket connector at the through-hole portion; Equipped with The connector unit according to claim 9 , wherein the biasing member is disposed between the second pin side holding member and a step portion formed in the through portion of the insulator.

11. The divided pieces of the biasing member have an engagement portion, the second pin side holding member has an engaged portion with which the engaging portion of the biasing member is engaged, The connector unit according to claim 10, wherein the split piece of the urging member is fixed so as to surround the extension portion of the first pin side holding member with the engaging portion of the split piece of the urging member engaged with the engaged portion of the second pin side holding member.

12. 11. A connector unit as described in claim 9 or 10, wherein when the socket connector and the pin connector are connected, the peripheral surface of the end of the first pin side holding member on the connection side with the socket connector contacts the peripheral surface of the recess of the socket side holding member.

13. The connector unit according to claim 9 or 10, wherein inside the recess of the socket side holding member, the end face of the socket terminal on the connection side with the pin connector and the bottom surface of the recess of the socket side holding member are arranged flush with each other.

14. 11. The connector unit according to claim 9, wherein the socket side holding member is integrally formed with the socket terminal by insert molding.

15. The socket terminal includes a flange portion, The connector unit according to claim 14 , wherein the socket side holding member is formed so as to cover a flange portion of the socket terminal.

16. 11. The connector unit according to claim 9, wherein the first pin side holding member is integrally formed with the pin terminal by insert molding.

Images