JP6052086B2 - Terminal pair - Google Patents

Description

  The present invention relates to a terminal pair.

As a connector provided with a terminal held by a housing, for example, a connector described in Patent Document 1 is known.
In this connector, when the terminal held by the housing and the counterpart terminal are connected, the terminal is held by the housing in a state of being in contact with the counterpart terminal.

JP 2002-75543 A

  In the connector described in Patent Document 1, the contact load between the terminal and the mating terminal is held by the housing. Without the housing, a sufficient contact load cannot be obtained, and the electrical connection reliability between the terminals can be obtained. There was concern that this would be insufficient.

  The present invention has been completed based on the above circumstances, and an object thereof is to provide a terminal pair with improved electrical connection reliability.

  In order to solve the above problems, the present invention comprises an inner peripheral terminal disposed on the inner side and an outer peripheral terminal disposed on the outer side of the inner peripheral terminal so as to come into contact with the inner peripheral terminal. The peripheral terminal is biased in the outer direction and has a contact portion that contacts the outer peripheral terminal, while the outer peripheral terminal is biased in the inner direction and is a terminal pair having a contact portion that contacts the inner peripheral terminal. .

  In the present invention, the contact portion of the inner peripheral terminal is urged outward and contacts the outer peripheral terminal, and the contact portion of the outer peripheral terminal is urged inward and contacts the inner peripheral terminal. A sufficient contact load can be obtained simply by bringing the contact portion of the outer peripheral terminal into contact with the outside of the portion. As a result, according to the present invention, a terminal pair with improved electrical connection reliability can be provided.

The present invention may have the following configuration.
Of the contact portion of the inner peripheral terminal and the contact portion of the outer peripheral terminal, the contact portion of at least one terminal may have an elastic contact piece.
With such a configuration, the contact load can be set more finely, so that the connection reliability can be further improved.

Both the contact portion of the inner peripheral terminal and the contact portion of the outer peripheral terminal may have an annular shape.
With such a configuration, when the inner peripheral terminal and the outer peripheral terminal are fitted, the fitting position is not restricted, and the fitting operation can be performed smoothly.

  ADVANTAGE OF THE INVENTION According to this invention, the terminal pair which improved the electrical connection reliability can be provided.

The perspective view of the connector provided with the terminal pair of Embodiment 1. Perspective view of first connector and second connector before mating Exploded perspective view of the first connector Exploded perspective view of the second connector Side view of the first connector Sectional drawing in the AA line of FIG. Bottom view of the first connector Sectional drawing in the BB line of FIG. Side view of the second connector Sectional view taken along line CC in FIG. Bottom view of the second connector Sectional drawing in the DD line of FIG. Connector side view Sectional drawing in the EE line of FIG. Bottom view of mated connector Sectional drawing in the FF line of FIG. Perspective view showing terminal pair before mating Perspective view of mated terminal pair Side view of mated terminal pair Sectional drawing in the GG line of FIG.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the connector 10 having the terminal pair 40 (40A, 40B, 40C) of the present embodiment has a first connector 11 (left side in the figure) and a second connector 25 (right side in the figure) that are fitted to each other. ).

  In the present embodiment, the first terminal 18 (an example of the inner peripheral terminal) of the first connector 11 and the first terminal 33 (an example of the outer peripheral terminal) of the second connector 25 constitute a terminal pair 40. The second terminal 19 (an example of an inner peripheral terminal) and the second terminal 34 (an example of an outer peripheral terminal) of the second connector 25 constitute a terminal pair 40, and the third terminal 20 (an example of an outer peripheral terminal) of the first connector 11. ) And the third terminal 35 (an example of an inner peripheral terminal) of the second connector 25 constitute a terminal pair 40.

(First connector 11)
As shown in FIG. 3, the first connector 11 includes a first terminal 18, a second terminal 19, a third terminal 20, a fourth terminal 21 having contact portions 18 </ b> A, 19 </ b> A, 20 </ b> A, 21 </ b> A, And a housing 12 that holds 19, 20, and 21.

  The terminals 18, 19, 20, and 21 of the first connector 11 are a first terminal 18, a second terminal 19, a third terminal 20, and a fourth terminal 21 in order from the left side in FIG. The first terminal 18, the second terminal 19, and the third terminal 20 are each a ring-shaped contact portion 18A, 19A, 20A and a plate protruding from the approximate center of the contact portion 18A, 19A, 20A. Terminal portions 18B, 19B, and 20B.

  The diameters of the contact portions 18A, 19A, and 20A of the first terminal 18, the second terminal 19, and the third terminal 20 are set to be smaller in the order of the first terminal 19, the second terminal 19, and the third terminal 20. The fourth terminal 21 has a pin shape, and the surface thereof is a contact portion 21A. Details of the first terminal 18, the second terminal 19, and the third terminal 20 will be described later.

  A terminal holding hole 13 through which the four terminals 18, 19, 20, and 21 are inserted is formed on the left end side in FIG. 3 of the housing 12 of the first connector 11. As shown in FIGS. 5 and 7, the housing 12 of the first connector 11 has a first terminal holding portion 14 that holds and holds the contact portion 18 </ b> A of the first terminal 18 on the outer wall surface 12 </ b> A (outside of the housing 12). And a second terminal holding part 15 for fitting and holding the contact part 19A of the second terminal 19 closer to the right end part than the first terminal holding part 14. The 1st terminal holding | maintenance part 14 and the 2nd terminal holding | maintenance part 15 have comprised the shape (concave shape) which can fit each contact part 18A, 19A.

  Further, as shown in FIGS. 6 and 8, the third terminal holding portion 16 is recessed in the inner wall surface 12 </ b> B (inside the housing 12) of the housing 12 of the first connector 11.

  The fourth terminal 21 is held in the holding hole 17 in the back wall (left wall portion) of the housing 12 of the first connector 11 further inside in the radial direction than the third terminal 20.

  The four terminals 18, 19, 20, and 21 of the first connector 11 are provided on the inside of the housing 12 and the first terminal holding part 14 and the second terminal holding part 15 provided on the outside of the housing 12 of the first connector 11. The third terminal holding part 16 and the holding hole 17 hold it.

(Second connector 25)
As shown in FIG. 4, the second connector 25 includes a first terminal 33 having contact portions 33A, 34A, 35A, and 36A, a second terminal 34, a third terminal 35, a fourth terminal 36, and these terminals 33 and 34. , 35, and 36.

  Terminals 33, 34, 35, and 36 of the second connector 25 are a first terminal 33, a second terminal 34, a third terminal 35, and a fourth terminal 36 in order from the left side in FIG. The first terminal 33, the second terminal 34, and the third terminal 35 respectively protrude from the approximate center of the contact portions 33A, 34A, and 35A that are annular and partially open, and the contact portions 33A, 34A, and 35A. It consists of plate-shaped terminal portions 33C, 34C, and 35C.

  The diameters of the contact portions 33A, 34A, 35A of the first terminal 33, the second terminal 34, and the third terminal 35 are set to be smaller in the order of the first terminal 33, the second terminal 34, and the third terminal 35. The fourth terminal 36 includes a U-shaped contact portion 36A extending in the fitting direction and a plate-shaped terminal portion 36B protruding from the approximate center of the contact portion 36A.

  A plurality of elastic contact pieces 33B, 34B, and 35B are formed on the contact portions 33A, 34A, and 35A of the first terminal 33, the second terminal 34, and the third terminal 35, respectively. Details of the first terminal 33, the second terminal 34, and the third terminal 35 will be described later.

  A terminal holding hole 27 through which the four terminals 33, 34, 35, and 36 are inserted is formed on the right end portion side in FIG. 4 of the housing 26 of the second connector 25. The housing 26 of the second connector 25 has a substantially cylindrical shape and includes a cylindrical holding portion 30 inside thereof.

  As shown in FIGS. 10 and 12, the inner wall of the housing 26 of the second connector 25 is provided with a first terminal holding portion 28 that holds the contact portion 33 </ b> A of the first terminal 33 on the outermost side in the radial direction. . Further, on the inner wall of the housing 26, a second terminal holding portion that holds the contact portion 34A of the second terminal 34 closer to the right end portion than the first terminal holding portion 28 and on the inner side in the radial direction than the first terminal holding portion 28. 29 is provided.

  As shown in FIGS. 10 and 12, a third terminal holding portion 31 is provided on the outer surface of the cylindrical holding portion 30 of the housing 26 of the second connector 25. Four terminals 36 are held (fourth terminal holding part 32).

  The four terminals 33, 34, 35, 36 of the second connector 25 are held at positions shifted in the radial direction in the housing 26 of the second connector 25.

  When the first connector 11 and the second connector 25 are fitted, the first connector 11 is rotatably fitted to the second connector 25.

  In the state where the first connector 11 and the second connector 25 are fitted, as shown in FIG. 14, the contact between the contact portion 18 </ b> A of the first terminal 18 of the first connector 11 and the first terminal 33 of the second connector 25. The contact portion 19A contacts the contact portion 19A of the second terminal 19 of the first connector 11 and the contact portion 34A of the second terminal 34 of the second connector 25. Further, in the state where the first connector 11 and the second connector 25 are fitted, as shown in FIG. 16, the contact portion 20 </ b> A of the third terminal 20 of the first connector 11 and the third terminal 35 of the second connector 25. The contact portion 35A comes into contact, and the contact portion 21A of the fourth terminal 21 of the first connector 11 and the contact portion 36A of the fourth terminal 36 of the second connector 25 come into contact with each other.

  The plurality of terminals 33, 34, 35, 36 of the second connector 25 are respectively connected to the terminals 18, 19, 20, of the first connector 11 when the fitting with the first connector 11 is completed in the housing 26 of the second connector 25. It is hold | maintained so that it may contact 21 contact part 18A, 19A, 20A, 21A.

  When the fitting is completed, the contact portions 18A, 19A, 20A, 21A of the terminals 18, 19, 20, 21 of the first connector 11 are contact portions 33A of the corresponding terminals 33, 34, 35, 36 of the second connector 25. , 34A, 35A, and 36A, the connectors 11 and 25 are in an electrically connectable state.

(Terminal pair 40)
The terminal pair 40 of this embodiment is demonstrated.
The first terminal 18 and the second terminal 19 of the first connector 11 are inside the first terminal 33 and the second terminal 34 of the paired second connector 25, and the third terminal 20 of the first connector 11 is the second terminal. These are terminals 18, 19, 20 on a cylindrical surface having a coaxial axis and are arranged outside the third terminal 35 of the connector 25.

  The first terminal 33, the second terminal 34, and the third terminal 35 of the second connector 25 are arranged so as to be in contact with the first terminal 18, the second terminal 19, and the third terminal 20 of the first connector 11. , 19 and 20 are terminals 33, 34 and 35 on a cylindrical surface having the same axis.

  17 to 20, the terminal pair 40 in which the inner peripheral terminal is the first terminal 18 of the first connector 11 and the outer peripheral terminal is the first terminal 33 of the second connector 25 is illustrated. The pair 40 is substantially the same, and will be described collectively.

  As described above, the first terminal 18, the second terminal 19, and the third terminal 35 (inner peripheral terminal) are urged outward. The first terminal 33, the second terminal 34, and the third terminal 20 (outer peripheral terminal) are urged inward. The first terminal 18, the second terminal 19, and the third terminal 35 (inner peripheral terminal) have contacts 18A, 19A, 35A, and the first terminal 33, the second terminal 34, and the third terminal 20 (outer peripheral terminal) are in contact. It has parts 33A, 34A, 20A.

  In the present embodiment, the contact portions 33A, 34A, 35A of the terminals 33, 34, 35 attached to the first connector 11 have elastic contact pieces 33B, 34B, 35B, respectively.

  The elastic contact pieces 33B, 34B, and 35B are arranged so that the base end portions 331, 341, and 351 are forward in the fitting direction (in the direction indicated by the arrow Y in FIG. 19). (Direction to point).

  Connection portions 332, 342, and 352 of the elastic contact pieces 33B, 34B, and 35B with the corresponding terminals 18, 19, and 20 are provided in the rear in the fitting direction.

  That is, in this embodiment, in the terminals 33, 34, and 35, the front in the fitting direction of the terminals 33, 34, and 35 is defined as the base end portions 331, 341, and 351, and the elastic contact pieces 33B and 34B extending rearward in the fitting direction. , 35B are provided so that when the outer peripheral terminals 33, 34, 35 and the inner peripheral terminals 18, 19, 20 are fitted together, the connecting portions 332, 342, 352 side of the elastic contact pieces 33B, 34B, 35B are It can be prevented from being damaged by turning up.

  In this embodiment, the contact portions 18A, 19A, 20A of the inner peripheral terminals 18, 19, 20 and the contact portions 33A, 34A, 35A of the outer peripheral terminals 33, 34, 35 are as shown in FIG. Since the ring is formed, the insertion position is not selected when the terminals 18, 19, 20 and the terminals 33, 34, 35 are fitted.

(Function and effect)
The operation and effect of this embodiment will be described.
In the present embodiment, the contact portions 18A, 19A, and 35A of the inner peripheral terminals 18, 19, and 35 are urged outwardly to contact the outer peripheral terminals 33, 34, and 20 and the contact portions of the outer peripheral terminals 33, 34, and 20 are contacted. Since 33A, 34A, and 20A are urged inward to contact the inner peripheral terminals 18, 19, and 35, the outer peripheral terminals 33 and 34 are outside the contact portions 18A, 19A, and 35A of the inner peripheral terminals 18, 19, and 35. , 20 contact portions 33A, 34A, 35A can be brought into contact with each other to obtain a sufficient contact load. As a result, according to the present embodiment, it is possible to provide the terminal pair 40 with improved electrical connection reliability.

  Moreover, according to this embodiment, since the contact parts 33A, 34A, 35A of the outer peripheral terminals 33, 34, 35 have the elastic contact pieces 33B, 34B, 35B, the contact load can be set more finely. In addition, the electrical connection reliability of the terminal pair 40 can be further improved.

  Furthermore, according to the present embodiment, the contact portions 18A, 19A, 35A of the inner peripheral terminals 18, 19, 35 and the contact portions 33A, 34A, 20A of the outer peripheral terminals 33, 34, 20 are both annular. When the terminals 18, 19, 20 and the terminals 33, 34, 35 are fitted, the fitting position is not restricted, and the fitting operation can be performed smoothly.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the contact portions 33A and 34A of the outer peripheral terminals 33 and 34 and the contact portion 35A of the inner peripheral terminal 35 have the elastic contact pieces 33B, 34B and 35B, respectively. It is not limited to this. Only the contact portion of the inner peripheral terminal may have the elastic contact piece, or both the contact portion of the outer peripheral terminal and the contact portion of the inner peripheral terminal may have the elastic contact piece.
(2) In the above embodiment, the cantilevered outer peripheral terminals 33, 34, and 35 and the inner peripheral terminals 18, 19, and 20 are shown. However, the outer peripheral terminal and the inner peripheral terminal may be both-end supported.
(3) In the above embodiment, the contact portions 18A, 19A, and 20A of the terminals 18, 19, and 20 and the contact portions 33A, 34A, and 35A of the terminals 33, 34, and 35 are both shown in an annular shape. Further, it may be a rectangular shape instead of an annular shape.

DESCRIPTION OF SYMBOLS 10 ... Connector 11 ... 1st connector 18 ... 1st terminal (inner peripheral terminal)
18A: Contact portion (contact portion of inner peripheral terminal)
19 ... 2nd terminal (inner peripheral terminal)
19A ... contact part (contact part of inner peripheral terminal)
20 ... Third terminal (outer peripheral terminal)
20A ... contact part (contact part of outer peripheral terminal)
25 ... 2nd connector 33 ... 1st terminal (outer periphery terminal)
33A: Contact portion (contact portion of outer peripheral terminal)
33B ... Elastic contact piece 34 ... Second terminal (outer peripheral terminal)
34A: Contact portion (contact portion of outer peripheral terminal)
34B ... elastic contact piece 35 ... third terminal (inner peripheral terminal)
35A ... contact part (contact part of inner peripheral terminal)
35B ... elastic contact piece 40 ... terminal pair

Claims (2)

An inner peripheral terminal disposed on the inner side, and an outer peripheral terminal disposed on the outer side of the inner peripheral terminal so as to contact the inner peripheral terminal,
The inner peripheral terminal is biased outwardly and has a contact portion that contacts the outer peripheral terminal,
The peripheral pin is biased inwardly, have a contact portion in contact with the inner peripheral terminals,
The contact portion of at least one of the contact portion of the inner peripheral terminal and the contact portion of the outer peripheral terminal has an elastic contact piece that elastically contacts the contact portion of the other terminal,
The elastic contact piece is disposed in front of the base end portion in the fitting direction with the other terminal,
A pair of terminals , wherein the contact portion is arranged rearward in the fitting direction . The terminal pair according to claim 1, wherein the contact portion of the inner peripheral terminal and the contact portion of the outer peripheral terminal are both in an annular shape .

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