JPS593496Y2 - Electrical connection terminal for battery post - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrical connection terminal for a battery post for connecting an electric wire to a battery post.

Conventionally, as an electric connection terminal for a battery post for connecting an electric wire to a battery post, there are structures shown in FIGS. 6 and 7, for example.

In other words, it is formed from a cast body of lead, etc., and is used as a battery post)
By inserting the tightening bolt B into one side of the double contact plate parts 1 and 2, in which the connection ports 6 and 7 for inserting the P are formed facing each other, and tightening it with the nut T, the battery post (P) is assembled. A crimping part 20 is provided on the other side of the contact plate part 1 to secure the wire by caulking.

However, this conventional electrical connection terminal for battery post 03
When the battery post (P) is tightened with the tightening pole (B) and the nut T, the stress distribution appears as shown in Figure 6, and since the battery post (I-P) is tapered, the contact plate Due to insufficient strength of parts 1 and 2, deformation occurred as shown in FIG. 7.

For this reason, the connection terminal 03 itself becomes idle with respect to the battery post (P), resulting in insufficient attachment.

The present invention was developed in view of the above points, and its purpose is to allow shrinkage near the outside of the connection port formed in the double contact plate portion for inserting the pantry post. By forming concave ribs in a radial manner separating the notches, the bolt can be tightened sufficiently to withstand deformation even when the bolt is tightened, thereby making it possible to securely attach it to the battery post. To provide an electrical connection terminal for a battery post that can be manufactured by punching and bending a plate material such as brass instead of a terminal made of a cast lead body, thereby achieving weight reduction and automating the connection with electric wires. There is something to do.

Hereinafter, the details of the present invention will be explained with reference to the attached drawings in accordance with one embodiment.
are continuous by a bending connection part 3 provided on one side in the wire connection direction, and on the other side in the wire connection direction, an outer U-shaped crimping part 4 for the wire is connected to the contact plate part 1, and an outer U-shaped crimping part 4 for the wire is connected to the contact plate part 2 on the other side in the wire connection direction. An inner U-shaped crimp portion 5 is continuously provided.

The upper and lower contact plate parts 1, 2 are formed with connection ports 6, 7 of different sizes for the battery post (P), and a reduction permitting notch 8 is provided for the connection port 6.7.

Tapered contact flanges 9 and 10 are formed around the connection ports 6 and 7 in the same direction.

A large number of grooves 11 are formed in the axial direction on the inner circumferential surfaces of the contact flanges 9 and 10 to improve the biting against the battery post P and to obtain good contact.

Flanges 12.12 are formed at both ends of the new connecting part 3 for the fastening pole (B), and the flanges 12.12 have bolt insertion holes 13 and bent ears 14, 14 on the outside. The bent ears 14, 14 are arranged to straddle the upper and lower contact plate parts 1.2, and thereby the bolt insertion hole 13 is connected to the surface contact plate part 1.
, located between 2.

Branch circuit terminal plate parts 15 are provided at both ends of the lower contact plate part 1.
15 is formed.

17.17; 18, 18 are concave ribs formed radially near the outside of both the connection ports 6, 7, with the reduction allowance notch 8 between them; It is a nut that is combined.

When using the product of this invention, the inner and outer U-shaped crimp parts 3, 4
The wires are connected by caulking the conductors, and the receiver is used by inserting the tightening pole (B) into the bolt insertion holes 13, 13 of the flange 12.12 and screwing the nut T into this. ) At the outer side of the circumferential contact plate parts 1 and 2, in which the connection ports 6 and 7 for inserting and tightening P are formed, a reduction allowing notch part 8 is separated, as shown in FIGS. 1 and 3. As shown, since concave ribs 17, 17 and 18, 18 are formed in a radial manner, the tightening bolts B and T are screwed together, and the battery post inserted into the connection port 6 and 7 is tightened tightly. Even if the tightening of P is strengthened, the concave ribs 17, 17; 18, 1
8, the peripheral contact plate portions 1 and 2 have a structurally strong structure capable of withstanding the tightening force of the tightening pole B and the nut T.

Incidentally, fix the tip of the battery post (P) that is tightened on both connection ports 6 and 7 in a vise (not shown), and in this state, tighten the battery post (P) to B (P) and change the specified torque for T (Nara) T. Then, the relationship between the tensile force of the connecting terminal in the direction perpendicular to the battery post (P) is measured using a push-pull gauge, and the measurement results shown in FIG. 4 are obtained.

In FIG. 4, O is the electrical connection terminal for the battery post of the present invention, 01 and 02 are terminals with concave ribs formed in a V-shape or a straight line, respectively, and the chain line 20 is the connection terminal O of the present invention. A line graph formed by connecting the lowest tensile forces when using the solid line 21. The one-dot chain line 22 is a line graph formed by connecting the minimum tensile forces when using the connection terminals 01.02 as comparative products in which concave ribs are formed in a V-shape or on a straight line, respectively.

Note that 03 is a terminal that does not have any conventional concave ribs,
The two-dot chain line 23 is a line graph formed by connecting the minimum tensile forces when the terminal 03 is used.

In this case, a torque of 80 kg-cm causes large buckling deformation of part A, making further testing impossible.

Therefore, the electrical connection terminal O for the battery post of the present invention
are large and small connection ports 6 and 7 formed in the circumferential contact plate parts 1 and 2.
Concave ribs 17, 17; 18, 18 are formed in a radial manner on the outer side of the plate, with the reduction permissible notch 8 spaced apart, so that tightening is done by applying the specified torque to the hole) T to the pole)-H. Similarly, the minimum tensile force of the connecting terminal O itself that tightens the battery post P is the connecting terminal 01,0 of the above.
It can be seen that it is higher than 2.

In other words, by providing the concave ribs 17, 17 ; 18 18 radially, the resistance of the circumferential contact plate parts 1 and 2 against the tightening dust between the tightening poles) B and Nara) T can be increased, and on the other hand, Connect the battery post l-P to the connection port 6 of the peripheral contact plate parts 1 and 2.
, 7 can be firmly tightened and connected.

This is a terminal 0 with concave ribs formed in a V-shape or a straight line.
1,02, when the battery post P is tightened with the tightening bolt B and Nara)-T as shown in Fig. Since the stress is applied from the side, the connection terminal 01,
The contact plate parts 1 and 2 of 02 are formed in a structure that is easily deformed, whereas in the connection terminal O of the present invention in which concave ribs 17, 17: 18, 18 are formed radially, the concave ribs 17,
17: Stress is applied directly in front (longitudinal direction) of 18 and 18, making it structurally stronger.

Therefore, when the contact plate parts 1 and 2 are tightened to the battery post P using the tightening poles L-B and Nara T, the contact plate parts 1 and 2 are connected to the radially formed recesses. Ribs 17, 17: Battery post P without being deformed by 18, 18 and without spinning.
Can be installed on.

Also, tapered contact flanges 9 and 10 are formed around the connection ports 6 and 7, and a large number of grooves 11 are formed in the axial direction on the inner peripheral surfaces of the contact flanges 9 and 10. The U-shaped crimp portion 4 on the inside of the other surface is formed with a protruding rib 16 by pressing, so that the protruding rib 16 bites into the conductor of the electric wire. This strengthens the connection between the electric wire and the connecting terminal.

As mentioned above, the present invention provides concave ribs radially apart from the notches that allow for reduction even when the tightening of the bolt is tightened, so that the tightening screws inserted into one side of the upper and lower double contact plate parts can be tightened. The plate part has a robust structure that can withstand this, and can be tightened and fixed to the battery post inserted into the large and small connection ports formed on the surface contact plate part without spinning, and the product itself is free from lead. Instead of using a cast terminal, it can be manufactured by punching and bending a plate material such as brass, making it easy to manufacture and suitable for mass production, reducing costs.Furthermore, it is possible to reduce the weight by a distant relative, and to The connection can also be made reliably by caulking the double U-shaped crimp portion.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing one embodiment of the present invention, Fig. 2 is a side view, Fig. 3 is a developed view of the punched state, and Fig. 4 is a connecting terminal O and a V-shaped shape of the present invention. Or, a graph showing the relationship between tensile force and nut tightening torque for connection terminals 01 and 02 as comparative surfaces with linear concave ribs and connection terminal 03 without concave ribs, FIG. 5 I90, C shows connection terminals 01 and 0□ for comparison and connection terminal O of the present invention.
Figures 6 and 7 are explanatory plan views showing the relationship between concave ribs and internal stress when tightening bolts and nuts, and show conventional electrical connection terminals for battery posts that do not have concave ribs. FIG. 2 is a plan view and a side view. 1.2...Contact plate part, 4,5...U-shaped wire crimping part, 6゜7...Connection port, 17.18
...Concave rib, B...Tighten with bolt,
T...Natsuto, P...Battery post.

Claims (1)

[Scope of utility model registration request] A U-shaped wire crimping part and a double contact plate part are continuously provided by punching and bending a sheet metal, and large and small connection ports are formed for both contact plate parts, and a large and small connection port is formed near the outside of both connection ports. , an electrical connection terminal for a battery post, characterized in that concave ribs are formed radially apart from a reduction-permissible notch.