JP2018181756A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the coupling work of terminals, while reducing the number of components furthermore.SOLUTION: In a connector 1 including a first terminal 50 having a first fastening hole 51, a second terminal 60 having a second fastening hole 61, a connector housing 10 extending in the vertical direction, and including a body protrusion 11 arranged in the second fastening hole 61 for the first and second terminals 50, 60 superposed in the vertical direction, and a cover 30 attached to the connector housing 10 from above, and having a tabular cover body 31, a pair of elastic pieces 32 extending vertically downward from the cover body 31 and placed between the inner peripheral surface of the second fastening hole 61 and the outer peripheral surface of the body protrusion 11, and a cover protrusion 33 projecting farther radially outward than the pair of elastic pieces 32, when the body protrusion 11 is inserted between the pair of elastic pieces 32 and the pair of elastic pieces 32 are opened, upward displacement of the first and second terminals 50, 60 is blocked by the cover protrusion 33, in a state where the first and second terminals 50, 60 are pressed upward.SELECTED DRAWING: Figure 2

Description

  The technology disclosed by the present specification relates to a connector.

  DESCRIPTION OF RELATED ART Conventionally, the connector as described in Unexamined-Japanese-Patent No. 2014-22266 (following patent document 1) is known. The connector includes a housing and L-shaped terminals and relay terminals connected to each other in the housing.

  The L-shaped terminal includes a round terminal portion through which the fixing screw is inserted and a barrel portion crimped and connected to the stretchable conductor, and is L-shaped by bending between the round terminal portion and the barrel portion at a substantially right angle ing.

  The relay terminal includes a round terminal portion through which the fixing screw is inserted and a barrel portion crimped and connected to the core wire of the electric wire, and the round terminal portion and the barrel portion are arranged in the vertical direction.

  The L-shaped terminal and the relay terminal are arranged such that the round terminal portion of the L-shaped terminal and the round terminal portion of the relay terminal overlap on the fixing nut fixed in the housing. Fixing screws are inserted through the respective round holes of the L-shaped terminal and the relay terminal, and the fixing screws are tightened into the fixing nuts. Thus, the L-shaped terminal and the relay terminal are fixed to the housing by the fixing screw and the fixing nut.

  When fastening the L-shaped terminal and the relay terminal, pass the fixing screw through the working holes provided on the back of the housing through the round terminals of the L-shaped terminal and the relay terminal, then insert the tool and fix the fixing screw. It is supposed to be fastened to the nut.

JP, 2014-22266, A

  However, when fastening the fixing screw to the fixing nut, for example, when the fastening position of the fixing screw is deep from the working hole, there is a problem that the fixing screw is dropped halfway. In addition, since it is necessary to close the working hole after fastening the fixing screw to the fixing nut, it is necessary to attach a cover to the working hole of the housing, which causes a problem that the number of parts increases.

The connector disclosed in the specification includes a first terminal having a first fastening hole, a second terminal having a second fastening hole, and the first terminal and the first terminal extending in the vertical direction and stacked in the vertical direction. A connector housing comprising a main body protrusion disposed in the second fastening hole for two terminals, a cover mounted on the connector housing from above, a plate-like cover main body, and the cover main body A pair of elastic pieces extending vertically downward and disposed between the inner peripheral surface of the second fastening hole and the outer peripheral surface of the main body projection, and radially outward from the pair of elastic pieces A cover having a projecting portion, the connector including: the main body projecting portion is inserted between the pair of elastic pieces to open the pair of elastic pieces; The second terminal is pressed upward Displacement upward is prevented by the cover protrusion in a state.
With such a configuration, the second terminal presses the first terminal upward with respect to the first terminal whose upward displacement is blocked, so the first terminal and the second terminal It will electrically conduct. Therefore, conventionally, it has been necessary to fasten the two terminals with the fixing screw and the fixing nut and to further close the working hole to be tightened with the cover, but in the above configuration, the main body protrusion provided on the connector housing and The first terminal and the second terminal can be connected by the pair of elastic pieces provided on the cover. Therefore, the fastening operation of the fixing screw and the fixing nut becomes unnecessary, and the connecting operation of the first terminal and the second terminal can be simplified. Furthermore, since the fixing screw and the fixing nut are not required, the number of parts can be reduced.

Further, the main body projection may be tapered upward.
With this configuration, when the main body projection is inserted between the pair of elastic pieces, the tapered portion of the main body projection serves as a guide for insertion of the pair of elastic pieces.

Further, the inner peripheral surfaces of the pair of elastic pieces may be tapered downward.
With such a configuration, the tapered portion of the pair of elastic pieces serves as a guide when the pair of elastic pieces are inserted between the inner peripheral surface of the second fastening hole and the outer peripheral surface of the main body projection. Will

  According to the connector disclosed in the present specification, the connection operation between the terminals can be simplified, and the number of parts can be further reduced.

Cross section of the connector before mounting the cover Cross section of the connector after the cover is attached The enlarged view of the connection part of the 1st terminal and the 2nd terminal in FIG. 2 Front view of connector after mounting cover

Embodiment
The present embodiment will be described with reference to FIGS. 1 to 4.
As shown in FIG. 1, the connector 1 according to this embodiment includes a connector housing 10, first and second terminals 50 and 60 disposed inside the connector housing 10, and a cover 30 attached to the connector housing 10. Have. In the following description, the Z direction in FIG. 1 is upward, and the X direction is forward.

  The connector housing 10 is made of resin and, as shown in FIG. 1, is open in the vertical direction. The connector housing 10 is provided with a hole 15 opening upward and a hole 16 opening downward. The diameter of the hole 16 is smaller than the diameter of the hole 15. From the bottom wall 17 of the hole 16, a main body protrusion 11 is formed extending upward. The main body projection 11 slightly protrudes upward from the opening edge 18 of the hole 16. The main body protrusion 11 is tapered upward. By doing so, when a pair of elastic pieces 32 of the cover 30 described later is inserted into the main body protrusion 11, the tapered portion serves as a guide for insertion of the pair of elastic pieces 32. A plate-like terminal support 13 is formed rearward from the opening edge 18 of the hole 16.

  The first terminal 50 and the second terminal 60 are so-called LA terminals, and each have a first fastening hole 51 and a second fastening hole 61 for fastening the terminals. The hole diameter of the second fastening hole 61 of the second terminal 60 is the same as the hole diameter of the first fastening hole 51 of the first terminal 50. The first terminal 50 and the second terminal 60 are disposed in an overlapping manner inside the connector housing 10, and are inserted into the first fastening hole 51 of the first terminal 50 and the main body protrusion 11. The second terminal 60 is disposed below the first terminal 50, and the second terminal 60 is in contact with the opening edge 18 of the hole 16 and the terminal support 13. The first terminal 50 is disposed inside the connector housing 10 in a direction opposite to the second terminal 60. Although not shown, a wire disposed from the front of the connector housing 10 is connected to the first terminal 50. Further, although not shown, an electric wire disposed from the rear of the connector housing 10 is connected to the second terminal 60. There is a space S1 between the inner peripheral surface of the first fastening hole 51 of the first terminal 50 and the second fastening hole 61 of the second terminal 60 and the outer peripheral surface of the main body projection 11, and a cover described later in the space S1. Thirty pairs of elastic pieces 32 are inserted.

  The cover 30 is made of a resin, and as shown in FIG. 1, includes a plate-like cover main body 31 and a pair of elastic pieces 32 vertically extending downward from the cover main body 31. . In the vicinity of the center in the vertical direction of the pair of elastic pieces 32, a cover projection 33 that protrudes outward in the radial direction is provided. The inner peripheral surfaces of the pair of elastic pieces 32 are tapered downward from near the center in the vertical direction of the pair of elastic pieces 32. By doing this, the tapered portions of the pair of elastic pieces 32 serve as a guide when inserting the pair of elastic pieces 32 into the space S1. As shown in FIG. 1, the outer diameter R1 of the pair of elastic pieces 32 is slightly smaller than the inner diameter of the first fastening hole 51 of the first terminal 50 and the second fastening hole 61 of the second terminal 60. The inner diameter of the upper surface of the main body projection 11 is larger than the inner diameter R2 of the tip of the pair of elastic pieces 32, but smaller than the inner diameter R3 near the center in the vertical direction of the pair of elastic pieces 32 There is. Therefore, when the pair of elastic pieces 32 is inserted into the space S1 (the outer peripheral surface side of the main body protrusion 11), the pair of elastic pieces 32 are elastic outward in the radial direction by engaging with the main body protrusion 11. Will be displaced.

Next, the operation of the present embodiment will be described.
When the pair of elastic pieces 32 of the cover 30 is inserted into the space S1 and the pair of elastic pieces 32 is further inserted downward along the outer peripheral surface of the main body protrusion 11, the inner peripheral surfaces of the pair of elastic pieces 32 The outer peripheral surface of the main body protrusion 11 contacts and slides. When the pair of elastic pieces 32 are inserted through the main body projection 11 while the inner peripheral surfaces of the pair of elastic pieces 32 slide on the outer peripheral surface of the main body projection 11, as shown in FIG. The elastic piece 32 is elastically displaced toward the circumferential direction outer side (direction A in FIG. 3) by the main body projection 11.

  As shown in FIG. 3, when the pair of elastic pieces 32 are elastically displaced outward in the circumferential direction, the pair of elastic pieces 32 are the inner peripheral surface of the first fastening hole 51 of the first terminal 50 and the second terminal It slides on the inner peripheral surface of the 60 second fastening holes 61. Thereby, the first terminal 50 and the second terminal 60 are pushed upward by the pair of elastic pieces 32 (direction B in FIG. 3) and displaced.

  When the first terminal 50 and the second terminal 60 are displaced upward, the upper end surface of the first fastening hole 51 of the first terminal 50 abuts on the lower end of the cover projection 33 and the upper side of the first terminal 50 and the second terminal 60 The displacement is prevented by the cover projection 33.

  When the pair of elastic pieces 32 is further inserted along the outer peripheral surface of the main body protrusion 11, as shown in FIG. 2, the cover main body 31 has an opening edge at the upper end of the hole 15 which opens above the connector housing 10. Abut on. Further, as shown in FIG. 4, the cover 30 is attached to the connector housing 10.

  The first terminal 50 and the second terminal 60 are pressed upward by the pair of elastic pieces 32, and the upward displacement is blocked by the cover projection 33. Therefore, the first terminal 50 and the second terminal 60 are vertically It is electrically connected in a state of being sandwiched from the direction. Therefore, since the connection work by the fixing screw and the fixing nut which were required by fastening of the conventional terminals becomes unnecessary, the connection work of the terminals can be simplified. Furthermore, since the fixing screw and the fixing nut which were conventionally required are not required, the number of parts can be reduced.

  As described above, according to the present embodiment, the second terminal 60 presses the first terminal 50 upward with respect to the first terminal 50 whose upward displacement is blocked. And the second terminal 60 are electrically connected. Therefore, conventionally, it has been necessary to fasten two terminals with a securing screw and a securing nut and further cover the working hole to be fastened with a cover, but in the above configuration, the main body projection provided on the connector housing 10 The first terminal 50 and the second terminal 60 can be connected by the pair 11 of elastic pieces 32 provided on the cover 30. Therefore, the fastening operation of the fixing screw and the fixing nut becomes unnecessary, and the connecting operation of the first terminal 50 and the second terminal 60 can be simplified. Furthermore, since the fixing screw and the fixing nut are not required, the number of parts can be reduced.

  In addition, when the main body protrusion 11 is inserted between the pair of elastic pieces 32, the tapered portion of the main body protrusion 11 serves as a guide for insertion of the pair of elastic pieces 32.

  Further, the tapered portions of the pair of elastic pieces 32 play a role as a guide when the pair of elastic pieces 32 are inserted between the inner peripheral surface of the second fastening hole 61 and the outer peripheral surface of the main body protrusion 11. It will be.

Other Embodiments
The art disclosed by the present specification is not limited to the embodiments described above with reference to the drawings and the drawings, and includes, for example, various aspects as follows.
(1) In the present embodiment, the main body projection 11 is tapered upward, but may not be tapered. For example, the main body projection 11 may be formed in a rod shape having the same diameter and extending in the vertical direction. It is good.
(2) In the present embodiment, the inner peripheral surfaces of the pair of elastic pieces 32 are tapered downward, but it is not necessary to provide a taper, for example, from the cover main body 31 It may be shaped to extend vertically downward with the same inner diameter.
(3) In the present embodiment, the hole diameter of the first fastening hole 51 of the first terminal 50 disposed on the upper side and the hole diameter of the second fastening hole 61 of the second terminal 60 disposed on the lower side are the same. The hole diameter of the first fastening hole 51 may be larger than the hole diameter of the second fastening hole 61.
(4) In the present embodiment, although the first fastening hole 51 of the first terminal 50 and the second fastening hole 61 of the second terminal 60 are inserted through the main body protrusion 11, the second terminal 60 Only the two fastening holes 61 may be inserted into the main body protrusion 11.

DESCRIPTION OF SYMBOLS 1 ... Connector 10 ... Connector housing 11 ... Body projection part 30 ... Cover 31 ... Cover main-body part 32 ... A pair of elastic piece 33 ... Cover projection part 50 ... 1st terminal 51 ... 1st fastening hole 60 ... 2nd terminal 61 ... 2nd Two fastening holes

Claims (3)

A first terminal having a first fastening hole;
A second terminal having a second fastening hole;
A connector housing including main body projections disposed in the second fastening holes with respect to the first terminals and the second terminals extending in the vertical direction and stacked in the vertical direction;
A cover mounted on the connector housing from above, the cover main body having a plate-like shape, and the inner peripheral surface of the second fastening hole and the main body projection extending vertically downward from the cover main body A connector comprising: a pair of elastic pieces disposed between the outer peripheral surface of the cover and a cover protrusion projecting radially outward from the pair of elastic pieces,
The main body projection is inserted between the pair of elastic pieces, and the pair of elastic pieces is opened, whereby the first terminal and the second terminal are pressed upward by the cover projection. Connectors that are prevented from displacement.   The connector according to claim 1, wherein the main body projection is tapered upward.   The connector according to claim 1 or 2, wherein the inner peripheral surfaces of the pair of elastic pieces are tapered downward.

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