JPH11111260A - Terminal splicer for storage battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal splicer for storage battery having the structure that it is hard to be loosed in a long time use and it is hard to be come off from a connector terminal even in the case where the connector is loosed a little. SOLUTION: A splicing bar 4 provided with slits 4b communicated with outside, taper holes 4c provided on the way of the slits 4b, and screw holes 4a provided in side surfaces so as to cross the slits 4b for passing through is fitted in splicing poles 3 for fixation to a collector terminal of a storage battery, and fixed by bolts 5 from over, and furthermore, fastened by bolts 7 from the lateral direction. The inner peripheral surface of the taper holes 4c of the splicing bar 4 and the surface of the splicing poles 3 are plated 8 with the soft metal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for a storage battery terminal which has excellent vibration resistance and shock resistance which does not easily come off even if the place where the battery pack is installed is subjected to a certain degree of vibration or impact. .

[0002]

2. Description of the Related Art An assembled battery used as a power source for controlling an electric vehicle, an underwater vehicle, a rocket, and the like is configured by arranging a plurality of storage batteries in a storage case. Since such an assembled battery generates a high voltage and a large current, a terminal connector for connecting a current collecting terminal to another current collecting terminal must be robust and not easily come off. Also, a storage case,
The plurality of storage batteries stored in the storage case are required to have an assembly structure with improved earthquake resistance or impact resistance.

[0003] As a conventional battery having vibration resistance and shock resistance for use in electric vehicles and the like, as disclosed in Japanese Patent Application Laid-Open No. 8-264170, part of a battery case of a prismatic battery is proposed. 2. Description of the Related Art There is known an assembled battery device in which a packing is inserted into a protruding columnar projection, and the columnar projection is fitted into a through hole provided in an exterior plate via the packing. In this assembled battery device, the impact is mitigated by using a means having a vibration-resistant and impact-resistant mounting structure between the outer plate for accommodating the rectangular battery and the rectangular battery. Also, Japanese Patent Application Laid-Open No. 9-19 / 1997
No. 0811, as shown in FIG. 7, two through holes 22 for fitting a cathode pole terminal and an anode pole terminal at both ends of a conductive connecting rod body 21, and these through holes 22,
A pole terminal of a storage battery in which a longitudinal intermediate opening 24 communicating between the connecting rods 22 and a bolt insertion hole 26 are provided in the front and rear walls at the center of the connecting rod body 21, and a bolt 23 is screwed into the bolt insertion hole 26. Inter-connectors have been proposed. The connecting device 20 between pole pole terminals of this storage battery has a cathode pole terminal and an anode pole terminal fitted into two through holes 22 provided in the connecting rod body 21 respectively, and a bolt 23 inserted into a bolt insertion hole 26. Nut 2
By tightening at 8, the through hole, the cathode pole terminal, and the anode pole terminal are securely fixed.

[0004]

The battery pack used for controlling electric vehicles, underwater vehicles, rockets, etc., generates a high voltage and a large current as described above, so that the connection between the batteries does not cause a short circuit. Must be particularly robust. In the assembled battery, a connector for connecting the current collecting terminal of each battery to the current collecting terminal is made of a metal having good conductivity such as copper or brass. However, since it is a hard metal, the connecting portion tends to be loosened during use for a long period of time. In addition, it is desirable that the structure be such that it does not come off from the current collecting terminal as easily as possible even after the connector is loosened.

[0005] The present invention has been made to address the above-described problems, and does not easily loosen even after long-term use.
Another object of the present invention is to provide a terminal connector for a storage battery having a structure that does not easily come off from a current collecting terminal even when the terminal is slightly loosened.

[0006]

According to the present invention, in order to solve the above-mentioned problems, a connector for a terminal of a storage battery has split grooves (4b) communicating with the outside on both sides, and a hole in the middle of the split grooves. (4c), and a screw hole (4a) is formed on the side surface so as to penetrate the groove (4b).
A connection bar (4) provided with
A screw (3) formed so as to fit into the hole (4c) of (4) and screwed with the electrode terminals (1a, 1b) of the storage battery at the bottom.
a) and a connection pole (3) with a screw (3b) on top
And a bolt (5) screwed to the upper part of the connection pole (3) via a connection bar (4), and a screw hole (4a) provided on a side surface of the connection bar (4). Bolts to be combined (7)
And characterized by comprising:

Further, the split groove (4b) of the connection bar (4) of the above means is characterized in that it is a split groove whose outer end is connected.

Alternatively, a hole (4c) formed in the middle of the split groove (4b) of the connecting bar (4) of the above means or the above means.
Are tapered holes.

[0009] In addition, the above-mentioned or / or means for connecting a terminal for a storage battery may include at least the connecting bar.
(4) The inner peripheral surface of the hole (4c) and the surface of the connection port (3) are plated with a soft metal (8) or coated.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. 1 is an overall perspective view of a storage battery terminal connector of the present invention and a storage battery to which the storage battery terminal connector is attached. FIG. 2 is an exploded perspective view of the storage battery terminal connector of the present invention. Fig. 4 (A) is a partially assembled view of the connector for a storage battery terminal according to the present invention.
FIG. 4B is a plan view of a connection bar constituting the terminal connector of the storage battery according to the present invention, FIG. 4B is a cross-sectional view taken along the line MM of FIG. 4A, and FIG. Is a bottom view of the connection bar.

As shown in FIG. 1, a plurality of storage batteries 1 are housed in a plurality of storage cases (not shown). The plurality of storage batteries 1 are connected to the terminals of the storage battery according to the present invention. The collector terminal 1a on one positive electrode side is connected to the collector terminal 1b on the negative electrode side of the other storage battery 1 (see FIG. 6) by using the tool 2 to form a collective battery.

[0012] The terminal fitting 2 of the storage battery includes a connection bar.
4, a connection pole 3 for fixing the lower portion to the current collecting terminal of the storage battery with screws and an upper portion to the connection bar 4, and a washer 6.
And a bolt 5 to be screwed (sandwiched) above the connection poles 3 and 3 via a connection bar 4 and screw holes 4a and 4a provided on both side surfaces of the connection bar-4. And bolts 7 to be made.

Next, as shown in FIG.
Are provided with split grooves 4b, 4b communicating with the outside on both sides, and tapered holes 4c, 4c formed in the middle of the split grooves 4b, 4b. On the side surface of the connection bar-4, the split groove 4 is provided.
b, 4b, screw holes 4a, 4a
Is provided. The split groove 4b of the connection bar-4 is for elastically deforming both sides of the split groove 4b when the connection pole 3 is fitted into the hole 4c and tightened through the bolt 7, as described later. Therefore, if the split groove 4b can be elastically deformed, the outer end of the split groove 4b may be connected. The hole 4c may be a normal cylindrical hole instead of a tapered hole.

The connection pole 3 is formed in a tapered shape around its girth, that is, in the shape of a truncated cone, and in the middle of split grooves 4b, 4b provided at both ends of the connection bar-4. The taper holes 4c are formed so as to fit exactly into the taper holes 4c. Further, a male screw 3a is provided at a lower portion of the connection port 3. The male screw 3a is for screwing with a female screw 1c (see FIG. 1) provided at the head of the current collecting terminal 1a of the storage battery 1. When the hole 4c is not a tapered hole, the connection hole 3 may be a normal cylindrical one.

When the terminal 2 of the storage battery of the present invention having the above-described structure is mounted on the current collecting terminals 1a, 1b of the storage battery 1, the connection ports are connected to the taper holes 4c, 4c provided in the connection bar-4. Screws 3 and 3 and screw holes 4a and 4a with bolts 7 and
When the screw 7 is screwed and tightened, both ends of the elastically acting connection bar 4 on both sides of the split grooves 4b, 4b securely tighten and securely fix the tapered hole 4c and the connection pole 3. Can be.

Next, FIG. 5 is a sectional view of the components (port 3, connection bar 4, bolt 5, washer 6, etc.) constituting the connector for a terminal of a storage battery according to the present invention (however, FIG. 5). , Bolt 7
Is omitted). These materials are usually made of a conductive member such as copper alloy or brass. However, these metals have considerable surface hardness. Therefore, even if these members are assembled and tightened, if they are vibrated for a long time, they may gradually loosen. As a countermeasure, the surfaces of the connection bar 4, the connection pole 3, the washer 6 and the bolt 5 are plated 8 with a soft metal such as zinc, lead, gold, silver or an alloy thereof. In some cases, instead of plating, coating treatment with a soft metal may be performed.

As described above, when the surface of each member is coated or plated with a soft metal, when the tapered hole 4c of the connection bar 4 and the surface of the connection hole 3 are fitted together, The two are strongly joined to each other and become sticky. The same applies to the area around the hole of the washer 6 and the head of the bolt 5, but at least the plating 8 of this soft metal is used to
It may be applied to the inner peripheral surface of the hole 4c and the surface of the connection pole 3.

FIG. 6A is a view showing a state in which the terminal fitting 2 of the storage battery of the present invention having the above-described structure is connected to the current collecting terminal of the storage battery. As shown in this figure, at the time of assembling, first, screws 1c, 1c are provided for the current collecting terminals 1a, 1b.
Male threads 3a, 3a of connection poles 3, 3 are screwed into 1d, respectively, and fixed. Next, the connection poles 3, 3 are fitted into the taper holes 4c, 4c of the connection bar-4, and the connection bars are connected.
The bolts 5, 5 are screwed into female screws 3b, 3b provided on the heads of the connection poles 3, 3 with the washers 6, 6 from above, thereby fixing the connection bar-4. Then, bolts 7, 7 are screwed into screw holes 4a, 4a provided on the side surfaces of the connection bar 4, and the connection bar 4 is firmly fixed to the connection holes 3, 3.
In this case, since the surfaces of the tapered holes 4c and 4c of the connection bars 4 and 4 and the surfaces of the connection holes 3 and 3 are coated with the soft metal plating 8, the tapered holes 4c and 4c are formed. And connection port 3
It is firmly and firmly fixed, and rarely looses even with vibration and impact. As shown in FIG. 6 (B), even if both bolts 5 are slightly loosened, as long as these bolts 5 are screwed into the connection pole 3, the connection bar is not connected.
4 does not come off even if it shakes up and down slightly. That is, even if these bolts 5 and 5 are slightly loosened, the connection bar-4
It will not come off easily.

In the above embodiment, female screws 1c are provided at the current collecting terminals (1a, 1b) of the storage battery, and male screws 3a are provided at the lower part of the connection pole 3 for screwing with the female screws 1c.
However, conversely, a male screw may be provided at the current collecting terminals 1a and 1b of the storage battery and a female screw may be provided at the lower part of the connection pole 3. In addition, a bolt 5 is provided above the connection pole 3.
Although a female screw is provided for screwing with the above, a male screw may be provided on the upper part of the connection pole 3 and fixed with a nut via a connection bar-4.

[0020]

As described in detail above, according to the storage battery terminal connecting device of the present invention, the connecting device falls off even in a place where vibration or impact is likely to occur in an electric vehicle, an underwater vehicle, or the like. There is almost no disconnection.
Further, the danger of a short circuit caused by the disconnection of the connection tool can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a storage battery terminal connector of the present invention and a storage battery to which the storage battery terminal connector is attached.

FIG. 2 is an exploded configuration perspective view of a terminal fitting for a storage battery according to the present invention.

FIG. 3 is a partially assembled view of the connector for a terminal of a storage battery according to the present invention.

4 (A) is a plan view of a connection bar constituting the present invention, FIG. 4 (B) is a cross-sectional view taken along line MM of FIG. 4 (A), and FIG. (C) is a bottom view of the connection bar.

FIG. 5 is a cross-sectional view of a component of the connector for a storage battery terminal according to the present invention.

FIG. 6 (A) is a view showing a state in which the connector for a storage battery terminal of the present invention is connected to a current collecting terminal of the storage battery;
FIG. 6 (B) is a diagram showing a state in which the terminal fitting for the storage battery of the present invention is slightly loosened.

FIG. 7 is a perspective view of a conventional connector for a terminal of a storage battery.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage battery 1a Positive electrode terminal 1b Negative terminal 1c Female screw 2 Battery terminal connector 3 Connection pole 4 Connection bar 4a Screw hole 4b Split groove 4c Tape hole 5 Bolt 6 Washer 7 Bolt 8 Soft metal plating 8 Soft Metal plating (or clothing treatment)

Claims (4)

[Claims] 1. A split groove communicating with the outside on both sides,
A connection bar formed with a hole in the middle of the split groove, and further provided with a screw hole on the side surface so as to penetrate across the split groove;
A connection hole having a waist formed so as to fit into the hole of the connection bar and having a screw screwed to an electrode terminal of a storage battery at a lower portion and a screw provided at an upper portion, and connected to an upper portion of the connection port; Bar
And a bolt screwed into a screw hole provided in a side surface of the connection bar. 2. The terminal connector for a storage battery according to claim 1, wherein the split groove of the connection bar is a split groove whose outer end is connected. 3. The connector for a storage battery terminal according to claim 1, wherein the hole formed in the middle of the split groove of the connection bar is a tapered hole. 4. The connector for a storage battery terminal according to claim 1, wherein at least the inner peripheral surface of the hole of the connection bar and the surface of the connection pole are coated with a soft metal.