JP7010735B2 - Terminal fixing structure and bracket - Google Patents

Description

The present invention relates to a terminal fixing structure for fixing a round terminal to which an electric wire is connected to a bracket, and a bracket used for the terminal fixing structure.

The in-vehicle device may be grounded to a housing or the like by using the round terminal 1 for grounding. As a conventional terminal fixing structure for fixing a round terminal, there is one shown in FIG. The terminal fixing structure of FIG. 5 has a bracket 50 having an insertion hole (not shown), a round terminal (LA terminal) 1 connected to the ground wire W, and a bolt 51, and the bolt 51 is used. When the bracket 50 is fastened to a housing (not shown) or the like, the round terminal 1 is fastened together. The ground wire W is electrically connected to a round terminal 1, a bracket 50, and a housing (not shown), thereby forming a ground path for an in-vehicle device.

JP-A-2017-152350

However, in the conventional terminal fixing structure, the shaft hole (not shown) of the round terminal 1 and the bolt hole (not shown) of the bracket 50 must be aligned and bolted, so that the fastening work must be performed. There was a problem that workability was poor because it was accompanied.

Therefore, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a terminal fixing structure having good workability for fixing a round terminal to a bracket, and a bracket used for the terminal fixing structure.

The terminal fixing structure of the present invention is a terminal fixing structure for fixing a round terminal to which an electric wire is connected to a bracket. A shaft hole fixing portion that regulates both sides of the hole and supports the round terminal rotatably around the shaft hole, and an insertion position of the round terminal inserted into the shaft hole fixing portion. It is characterized in that it is provided with a terminal fixing portion that prevents the round terminal from rotating in both directions at the more rotated rotation completion position.

The bracket of the present invention is a bracket for fixing a round terminal to which an electric wire is connected. The round terminal is provided so as to be insertable, and both sides of the shaft hole of the inserted round terminal are restricted. Further, at the shaft hole fixing portion that rotatably supports the round terminal around the shaft hole and the rotation completion position in which the round terminal inserted into the shaft hole fixing portion is rotated from the insertion position. It is characterized by being provided with a terminal fixing portion that prevents rotation of the round terminal in both directions.

According to the present invention, the round terminal can be fixed to the bracket by inserting the round terminal into the shaft hole fixing portion and rotating the inserted round terminal to the rotation completion position, so that the workability of fixing the round terminal to the bracket is good.

An embodiment of the present invention is shown, where (a) is a perspective view of a terminal fixing structure, (b) is a sectional view taken along line A1-A1 of (a), and (c) is a sectional view taken along line B1-B1 of (a). be. An embodiment of the present invention is shown, (a) is a perspective view of a terminal fixing structure showing a state in which a round terminal is inserted into a shaft hole fixing portion, and (b) is a sectional view taken along line A2-A2 of (a). .. An embodiment of the present invention is shown, where (a) is a perspective view of a terminal fixing structure showing a state in which a round terminal is rotated to a rotation completion position, and (b) is a sectional view taken along line B2-B2 of (a). (A) to (d) are sectional views which show the modification of the shaft hole fixing part, respectively. It is a perspective view of the terminal fixing structure of the conventional example.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

1 to 4 show an embodiment of the present invention. As shown in FIG. 1, the terminal fixing structure includes a round terminal 1 which is a plate-shaped terminal to which a ground electric wire W is connected, and a bracket 10 for fixing the round terminal 1.

The base end of the ground wire W is connected to a negative terminal of an in-vehicle device (not shown).

The round terminal 1 is integrally provided with a thin plate-shaped circular terminal main body 2 having a shaft hole 2a in the center and the circular terminal main body 2, and is a wire crimping portion 3 for crimping and connecting the tip side of the ground wire W. And have. The round terminal (LA terminal) 1 is a product conforming to JIS D-5403 (electric wire terminal for automobiles) and JIS C-2805 (crimp terminal for electric wires).

The bracket 10 is formed by cutting a flat plate of a conductive member into a predetermined shape and bending it into a predetermined shape. The bracket 10 is fixed to the vehicle body side (for example, a housing) with bolts or the like. The bracket 10 includes a shaft hole fixing portion 11 and a terminal fixing portion 16.

The shaft hole fixing portion 11 has a base plate portion 12, a vertical wall portion 13 bent from one end side of the base plate portion 12, and a holding plate portion 14 bent from the upper end of the vertical wall portion 13. The holding plate portion 14 is arranged in parallel with the base plate portion 12. A terminal sandwiching space S is formed between the sandwiching plate portion 14 and the base plate portion 12. The terminal sandwiching space S is formed to have a width dimension d (shown in FIG. 1B) that is approximately the same as the wall thickness of the circular terminal main body 2 of the round terminal 1. In the terminal sandwiching space S, the side opposite to the vertical wall portion 13 is the insertion direction of the round terminal 1.

The holding plate portion 14 is provided with a support protrusion 15 that protrudes into the terminal holding space S. The support protrusion 15 is a cylindrical (cylindrical) protrusion having a size that can be inserted into the shaft hole 2a of the round terminal 1 without a gap. The round terminal 1 inserted into the terminal sandwiching space S is regulated (positioned) in the vertical direction by having its upper and lower surfaces in close contact with the base plate portion 12 and the sandwiching wall portion, respectively. The round terminal 1 is rotatably supported by inserting the support protrusion 15 into the shaft hole 2a.

The terminal fixing portion 16 is formed by bending a leaf spring portion 17 formed by two parallel slits of the base plate portion 12 and a leaf spring portion 17, and prevents reverse rotation protruding from the upper surface of the base plate portion 12. It has a portion 18 and an excess rotation preventing portion 19 bent in a vertical direction from one end side of the base plate portion 12.

The reverse rotation blocking portion 18 has a tapered surface 18a that gradually increases in the rotation direction from the insertion position of the round terminal 1 to the rotation completion position, and from the rotation completion position of the round terminal 1 to the insertion position. With respect to the rotation direction, it has a rotation control surface 18b that abuts on the wire crimping portion 3 of the round terminal 1. The rotation restricting surface 18b is formed in a surface shape that substantially follows the outer surface of the wire crimping portion 3 of the round terminal 1.

With such a configuration, the reverse rotation blocking portion 18 allows rotation from the insertion position of the round terminal 1 at the shaft hole fixing portion 11 to the rotation complete position rotated by 90 degrees, and the round terminal 1 is said to have the above-mentioned rotation. The rotation from the rotation completion position to the insertion position at the shaft hole fixing portion 11 is prevented.

The excessive rotation blocking unit 19 blocks the rotation of the round terminal 1 in the direction beyond the rotation completion position. The terminal fixing portion 16 prevents the round terminal 1 inserted into the shaft hole fixing portion 11 from rotating in both directions at the rotation completion position rotated by 90 degrees from the insertion position.

Next, the work of attaching the round terminal 1 to the bracket 10 will be described. As shown in FIG. 2, the round terminal 1 is inserted into the terminal holding space S of the shaft hole fixing portion 11. The upper and lower surfaces of the round terminal 1 inserted into the terminal holding space S are in close contact with the base plate portion 12 and the holding wall portion 14, respectively, and are regulated (positioned) in the vertical direction, and the support protrusions are provided in the shaft hole 2a. The portion 15 fits in.

Next, as shown in FIG. 3, the round terminal 1 inserted into the shaft hole fixing is rotated. The round terminal 1 overcomes the tapered surface 18a of the reverse rotation blocking portion 18 due to bending deformation of the leaf spring portion 17 and rotates to the rotation completion position. The round terminal 1 rotated to the rotation completion position is prevented from rotating in both directions by the rotation restricting surface 18b of the reverse rotation blocking portion 18 and the excessive rotation blocking portion 19. As a result, the round terminal 1 is fixed to the bracket 10.

As described above, if the round terminal 1 is inserted into the shaft hole fixing portion 11 and the inserted round terminal 1 is rotated to the rotation completion position, the round terminal 1 can be fixed to the bracket 10, so that the round terminal 1 can be fixed to the bracket 10. Workability is good because the fixing work is easy and can be done in a short time.

Since the entire surface of both sides of the circular terminal main body 2 of the round terminal 1 is in close contact with the base plate 12 and the holding plate 14, a sufficient grounding area can be secured.

The bracket 10 can be provided with a shaft hole fixing portion 11 and a terminal fixing portion 16 at a desired position separately from a position where the bracket 10 is fixed to the vehicle body side (for example, a housing) with bolts or the like. Therefore, a ground connection can be made at any position on the vehicle body side (for example, the housing). For example, the ground wire W can be installed at a position where the minimum length can be set, or the bracket 10 can be shared by a plurality of vehicle models and a plurality of grades. If the bracket 10 can be shared by a plurality of vehicle models and a plurality of grades, the design man-hours and the period of the bracket 10 can be reduced as compared with the case where individual designs are performed.

In this embodiment, the shaft hole fixing portion 11 has a terminal holding space S between the base plate portion 12 and the base plate portion 12, and the holding plate portion for sandwiching the round terminal 1 inserted into the terminal holding space S. It is composed of 14 and a support protrusion 15 that is projected into the terminal holding space S in at least one of the holding plate portion 14 and the base plate portion 12 and is inserted into the shaft hole 2a of the round terminal 1. A configuration in which a shaped terminal 1 is provided so as to be insertable, both sides of the shaft hole 2a of the inserted round terminal 1 are opened, and the round terminal 1 is rotatably supported around the shaft hole 2a. If it is good.

In this embodiment, the terminal fixing portion 16 is provided by bending the base plate portion 12 to allow rotation of the round terminal 1 from the insertion position at the shaft hole fixing portion 11 to the rotation completion position, and A reverse rotation blocking portion 18 that prevents rotation of the round terminal 1 from the rotation completion position to the insertion position side in the shaft hole fixing portion 11 and a direction that is bent from the base plate portion 12 and exceeds the rotation completion position. Although it is configured to have an excessive rotation preventing portion 19 that prevents the rotation of the round terminal 1, the round terminal 1 inserted into the shaft hole fixing portion 11 is rotated from the insertion position at the rotation completion position, and the round terminal 1 is in both directions. Any configuration may be used as long as it prevents rotation.

In this embodiment, the terminal fixing portion 16 is provided at a 90-degree rotation position of the round terminal 1 inserted into the shaft hole fixing portion 11, but any rotation angle may be used.

FIG. 4 shows each modification of the shaft hole fixing portion 11. In the first modification of FIG. 4A, a cylindrical (cylindrical) support protrusion 15 is provided on the base plate portion 12. In the second modification of FIG. 4B, the holding plate portion 14 is provided with a cylindrical support protrusion 15 cut into a tapered shape when viewed from the side surface. Due to the tapered shape, the round terminal 1 can be smoothly inserted into the terminal holding space S. In the third modification of FIG. 4C, the support protrusions 15 are provided on both the base plate portion 12 and the holding plate portion 14. Each support protrusion 15 has a spherical shape. Due to the spherical shape, the round terminal 1 can be smoothly inserted into the terminal holding space S. In the fourth modification of FIG. 4D, a cylindrical (cylindrical) support protrusion 15 is provided on the holding surface portion as in the above embodiment, but the holding plate portion 14 is the entrance of the terminal holding space S. It is tilted in the direction of narrowing. The holding force to the round terminal 1 becomes stronger, and reliable contact is possible.

W electric wire 1 Round terminal (plate-shaped terminal)
2 Circular terminal body 2a Shaft hole 10 Bracket 11 Shaft hole fixing part 12 Base plate part 14 Holding plate part 15 Support protrusion 16 Terminal fixing part 18 Reverse rotation prevention part 19 Excessive rotation prevention part S Terminal holding space

Claims (4)

In the terminal fixing structure that fixes the plate-shaped terminal to which the electric wire is connected to the bracket,
The bracket is provided so that the plate-shaped terminal can be inserted, regulates both sides of the inserted shaft hole of the plate-shaped terminal, and is rotatable around the shaft hole of the plate-shaped terminal. Supporting shaft hole fixing part and
A terminal fixing portion provided with a terminal fixing portion that prevents the plate-shaped terminal from rotating in both directions at a rotation completion position in which the plate-shaped terminal inserted into the shaft hole fixing portion is rotated from the insertion position. Construction. The terminal fixing structure according to claim 1.
The shaft hole fixing portion has a terminal holding space between the base plate portion and the base plate portion, and the holding plate portion that sandwiches the plate-shaped terminal inserted in the terminal holding space, the holding plate portion, and the above. At least one of the base plate portions has a support protrusion portion that is projected into the terminal holding space and is inserted into the shaft hole of the plate-shaped terminal.
The terminal fixing portion is provided by bending the base plate portion, allows rotation of the plate-shaped terminal from the insertion position at the shaft hole fixing portion to the rotation completion position, and allows the plate-shaped terminal to rotate. A reverse rotation blocking portion that blocks rotation from the rotation completion position to the insertion position at the shaft hole fixing portion,
A terminal fixing structure characterized by having an excessive rotation blocking portion that is bent from the base plate portion and blocks rotation in a direction beyond the rotation completion position. In the bracket that fixes the plate-shaped terminal to which the electric wire W is connected,
A shaft hole that is provided so that the plate-shaped terminal can be inserted, regulates both sides of the shaft hole of the inserted plate-shaped terminal, and rotatably supports the plate-shaped terminal around the shaft hole. Fixed part and
A bracket characterized in that it is provided with a terminal fixing portion that prevents the plate-shaped terminal from rotating in both directions at a rotation completion position in which the plate-shaped terminal inserted into the shaft hole fixing portion is rotated from the insertion position. The bracket according to claim 3.
The shaft hole fixing portion has a terminal sandwiching space between the base plate portion and the base plate portion, and the plate-shaped terminal inserted in the terminal sandwiching space is sandwiched by a spring return force to position the plate-shaped terminal in the orthogonal direction of the shaft hole. It has a plate portion and a support protrusion portion that is projected into the terminal sandwiching space in at least one of the holding plate portion and the base plate portion and is inserted into the shaft hole of the plate-shaped terminal.
The terminal fixing portion is provided by bending the base plate portion, allows rotation of the plate-shaped terminal from the insertion position at the shaft hole fixing portion to the rotation completion position, and allows the plate-shaped terminal to rotate. A reverse rotation blocking portion that blocks rotation from the rotation completion position to the insertion position at the shaft hole fixing portion,
A bracket provided by being bent from the base plate portion and having an excessive rotation blocking portion for blocking rotation in a direction exceeding the rotation completion position.

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