JP2001102042A - Battery power line connection structure - Google Patents

Abstract

(57) [Summary] [Problem] To provide a battery power line connection structure in which a sufficient connection state cannot be obtained by erroneous connection with different polarities. SOLUTION: Positive terminal 4 and negative terminal 5 of a battery
The positive terminal 8 of the positive power line 6 and the negative terminal 9 of the negative power line 7 are connected to each other with the same polarity.
And the negative electrode connecting portion 15. The positive terminals 4 and 8 of the positive connecting portion 14 and the negative terminals 5 and 9 of the negative connecting portion 15 have different convex portions 16a and 17a and concave portions 1 for each polarity.
6b and 17b are fitted and connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a battery having a positive terminal and a negative terminal, wherein a positive terminal of a positive power line and a negative terminal of a negative power line are connected to a positive terminal and a negative terminal of the battery with matching polarities. The present invention relates to a power line connection structure of a battery having a connection portion.

[0002]

2. Description of the Related Art In this type of battery power line connection structure, a positive electrode and a negative electrode of a load are connected to the positive power line and the negative power line with the same polarity. When connecting the terminal and the negative terminal of the power supply line for the negative electrode to the positive terminal and the negative terminal of the battery, it is necessary to ensure that the polarities are correct. Conventionally, in order to ensure that the polarity is not confused at the time of connection, each terminal has been provided with a different color or a positive or negative display.

[0003]

However, in the case of a color difference or a positive / negative display, if the work site is dark or the like, the display is insufficiently confirmed, and the negative terminal of the negative power supply line is connected to the positive terminal of the battery. However, there is a problem that the positive terminal of the positive power supply line is erroneously connected to the negative terminal of the battery. Further, even with such an erroneous connection, the mechanical connection state becomes the same as usual, and there is a problem that the erroneous connection is not noticed.

An object of the present invention is to provide a power supply line connection structure for a battery which can reliably perform connection in accordance with polarity. It is another object of the present invention to provide a power supply line connection structure of a battery in which a sufficient connection state cannot be obtained by incorrect connection having different polarities. Another object of the present invention is to provide a power supply line connection structure for a battery that can stabilize the drawing direction of the positive power supply line and the negative power supply line.

[0005]

Means for Solving the Problems The structure of the present invention which solves the above-mentioned problems and achieves the above-mentioned object will be described. In a battery power line connection structure in which a positive terminal of a power line and a negative terminal of a negative power line are connected with matching polarities to form a positive connection portion and a negative connection portion, a mutual connection of the positive connection portion is provided. The negative electrode terminal of the positive electrode terminal and the negative electrode terminal of the negative electrode connection portion are connected by fitting a convex portion and a concave portion that are different for each polarity.

As described above, if the mutual positive terminal of the positive electrode connection portion and the mutual negative terminal of the negative electrode connection portion are connected by fitting different projections and recesses for each polarity, a connection state having different polarities may occur. The convex and concave parts are no longer fitted,
It turns out that the connection is wrong, and you just have to reconnect. Therefore, according to the present invention, it is possible to reliably perform the connection with the same polarity.

Next, a second aspect of the present invention is the first aspect.
In the battery, the positive electrode terminal and the negative electrode terminal each include a seat portion and a bolt portion erected from the seat portion, and a convex portion and a concave portion that are different for each polarity are formed of the bolt portion. The seats are provided at different angles in the circumferential direction, and the seats are provided on opposing surfaces of the positive electrode terminal of the positive power supply line and the negative electrode terminal of the negative power supply line, which are overlapped with the polarities thereof. It is characterized by the following.

In this case, in the case of erroneous connection, the projections and recesses of the seat and the terminal of the power supply line do not fit, and a gap is formed between the seat and the terminal of the power supply line, resulting in an erroneous connection. Can be easily known visually or by touch. Also,
In a normal connection state, the convex and concave fit together,
The direction of the terminal of the power supply line becomes constant, and the leading direction of the positive power supply line and the negative power supply line can be made constant.

[0009]

1 to 3A and 3B show an embodiment of a battery power line connection structure according to the present invention. FIG. 1 shows a battery power supply according to the present embodiment. FIGS. 2A and 2B are exploded perspective views of the wire connection structure, FIGS. 2A and 2B are plan views of a battery terminal and a power supply line terminal forming a connection portion of one polarity, and FIGS. FIG. 5 is a plan view of terminals of a battery and terminals of a power supply line, which constitute a connection portion having a negative polarity.

In the battery power line connection structure of the present embodiment, the battery 1 has a positive electrode terminal 4 on the upper surface of the lid 3 of the battery case 2.
And a negative electrode terminal 5 are provided. The positive electrode terminal 4 and the negative electrode terminal 5 are respectively composed of seats 4a, 5a and bolts 4b, 5b standing upright from the seats 4a, 5a.

Each of the positive power supply line 6 and the negative power supply line 7 connected to the positive terminal 4 and the negative terminal 5 has a structure in which an outer periphery of a conductor is coated with an insulating coating. The conductors at the ends of the wire 6 and the negative power line 7 include
The positive electrode terminal 8 and the negative electrode terminal 9 are crimp-connected with matching polarities. Fitting holes 10 and 11 are formed in the positive electrode terminal 8 and the negative electrode terminal 9 to fit into the corresponding bolt portions 4b and 5b, respectively.

The positive terminal 8 of the positive power line 6 and the negative terminal 9 of the negative power line 7 are respectively connected to the bolt portions 4b and 4b of the positive terminal 4 and the negative terminal 5 by using the respective fitting holes 10 and 11. 5
b, and with the positive electrode terminal 8 and the negative electrode terminal 9 superimposed on the corresponding polar seats 4a, 5a, the nuts 12, 1
The positive electrode connection part 14 and the negative electrode connection part 15 are configured by screwing and fastening the bolts 3 to the bolt parts 4b and 5b.

The positive electrode connecting portion 14 thus constructed
The positive terminals 4, 8 of the negative electrode and the negative terminals 5, 9 of the negative connecting portion 15 have different convex portions 16a, 17a and concave portions 1 for each polarity.
6b and 17b are fitted and connected. In this example, the convex portions 16a, 17a and the concave portions 16b,
17b are provided four each, and each seat part 4a, 5a is provided with a different angle in the circumferential direction of each bolt part 4b, 5b.
And a positive electrode terminal 8 of the positive power supply line 6 and a negative electrode terminal 9 of the negative power supply line 7 which are overlapped with each other with the same polarity. The recesses 16b and 17b are formed by slits. In the positive electrode terminal 8 of the positive electrode power supply line 6, the four recesses 16b are formed such that the angle between the axis of the positive electrode power supply line 6 and the adjacent recess 16b is A ° as shown in FIG. , The convex portion 16a of the seat portion 4a
Are provided so as to match the positional relationship of the concave portion 16b of the positive electrode terminal 8 as shown in FIG. In the negative electrode terminal 9 of the negative electrode power supply line 7, the four recesses 17b are formed by the axis of the negative electrode power supply line 7 and the recess 1 adjacent thereto as shown in FIG.
The angle formed with B is set as B °, and the convex portion 17a of the seat portion 5a is provided in conformity with the positional relationship of the concave portion 17b of the negative electrode terminal 9 shown in FIG. Where angle A
And the angle B are set to A ≠ B.

As described above, the mutual positive terminals 4 and 8 of the positive electrode connecting portion 14 and the mutual negative terminals 5 and 9 of the negative electrode connecting portion 15 are
Convex portions 16a, 17a and concave portions 16b, 17 differing for each polarity
If the connection is made by fitting b, in the case of a connection state having different polarities, the projection and the recess will not be fitted, and it will be understood that the connection is erroneous, and the connection may be made again. Therefore, according to the present invention, it is possible to reliably perform the connection with the same polarity.

A convex portion 16a, 17a and a concave portion 16b, 17b, each having a different polarity, are provided at different angles in the circumferential direction of the bolt portions 4b, 5b, and each of the seat portions 4a, 5a is overlapped with the corresponding polarities. If the power supply line 6 is provided on the opposite surface of the positive terminal 8 of the power supply line 6 and the negative terminal 9 of the negative power supply line 7, the protrusion and the recess of the seat and the terminal of the power supply line will be fitted in a wrong connection. There is a gap between the seat and the power line terminal,
It is possible to easily know that the connection is incorrect by visual or touching.

In a normal connection state, the projections 16a,
Since the recesses 16a and 17b are fitted with the recesses 17a, the directions of the terminals 8 and 9 of the power supply lines 6 and 7 become constant, and the drawing directions of the positive power supply line 6 and the negative power supply line 7 can be made constant. .

Further, as shown in FIG. 4, for example, by changing the set angle C.degree.
Also has a high degree of freedom and can be set with high accuracy.

In the above example, the convex portions 1 differing for each polarity are provided.
6a and 17a and four recesses 16b and 17b are provided, respectively, but the present invention is not limited to this.
An appropriate number can be selected as long as the number is equal to or more than the number.

In the above example, the projections 16a, 17a are provided on the seats 4a, 5a, and the depressions 16b, 17b are connected to the terminals 8,
9, the present invention is not limited to this. Protrusions 16 a, 17 a are provided on terminals 8, 9, and recesses 16
b, 17b may be provided on the seats 4a, 5a.

[0020]

According to the power supply line connection structure for a battery according to the first aspect, the mutual positive terminal of the positive connecting portion and the negative terminal of the negative connecting portion are fitted with different convex portions and concave portions for each polarity. Since the connection is made, in the case of a connection state having different polarities, the convex portion and the concave portion are not fitted to each other, it is understood that the connection is erroneous, and the connection having the same polarity can be reliably performed.

Next, in the battery power supply line connection structure according to the second aspect, the convex portions and the concave portions, which are different for each polarity, are different in angle in the circumferential direction of each bolt portion so that the polarity is matched to each terminal. The positive and negative power supply lines are provided on the opposite surfaces of the positive and negative power supply lines, respectively. There is a gap between the terminal seat and the terminal of the power supply line, and it can be easily visually or touched that the connection is incorrect. In a normal connection state, the protrusions and the recesses are fitted with each other, so that the direction of the terminals of the power supply line is fixed, so that the leading directions of the positive power supply line and the negative power supply line can be made constant.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of an embodiment of a power supply line connection structure for a battery according to the present invention.

FIGS. 2A and 2B are plan views of a terminal of a battery and a terminal of a power supply line which constitute a connection part of one polarity.

FIGS. 3A and 3B are plan views of terminals of a battery and terminals of a power supply line which constitute a connection part of the other polarity.

FIG. 4 is a perspective view showing an example in which a set angle C ° of a concave portion of a terminal is changed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery 2 Battery case 3 Lid 4 Positive electrode terminal 5 Negative electrode terminal 4a, 5a Seat part 4b, 5b Bolt part 6 Power supply line for positive electrode 7 Power supply line for negative electrode 8 Positive terminal 9 Negative terminal 10, 11, Fitting hole 12, 13 Nut part 14 Positive electrode connection part 15 Negative electrode connection part 16a, 17a Convex part 16b, 17b Concave part

Claims (2)

[Claims] 1. A positive terminal and a negative terminal are connected to a positive terminal and a negative terminal of a battery, respectively, with a positive terminal of a positive power line and a negative terminal of a negative power line connected to each other. In the power supply line connection structure for a battery, the positive terminal of the positive terminal and the negative terminal of the negative terminal are connected to each other by fitting different convex portions and concave portions for each polarity. A power line connection structure for a battery. 2. The battery according to claim 2, wherein the positive electrode terminal and the negative electrode terminal each include a seat portion and a bolt portion erected from the seat portion. The seats are provided at different angles in the circumferential direction of the bolt portion, and the seats are provided on the facing surfaces of the positive terminal of the positive power line and the negative terminal of the negative power line, respectively, which are overlapped with the polarities thereof. The power supply line connection structure for a battery according to claim 1, wherein: