JPS61116754A - Sealed storage battery - Google Patents

Abstract

PURPOSE:To surely fix a lead terminal by inserting both ends of a U-shaped terminal plate into a pair of long holes installed in an outer case and bending the ends so as to surround projected parts installed on the inner surfaces of the long holes. CONSTITUTION:A U-shaped terminal plate 4 is faced to the surface of a pair of long holes 3 installed in a case 2a and inserted into the holes 3. The tips of the terminal plate 4 are projected to the inner side of the case and bent toward ribs so as to surround them. The tips, located on the inner side of the case, of terminal plate are bent one more time because of the presence of ribs 5 and a space is generated between the bent tip and the rib. When a tip of lead terminal is soldered to the space, heat of a soldering iron is concentrated on the tip without giving heat effect to the case 2a, and the lead terminal is surely soldered.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to improvements in input/output terminals provided on the outer container of a sealed storage battery.

Prior art Input/output terminals 1 in conventional sealed storage batteries are constructed by inserting U-shaped terminal pieces 4 into a pair of long holes 3 provided in an outer container 2, and inserting the tips of the terminal pieces 4 inside the container. It was formed by bending it in one direction.

Problems to be Solved by the Invention However, in such a conventional input/output terminal 1, the tip of the U-shaped terminal piece 4 was simply pawned through the elongated hole 3 and then bent. The elastic restoring force of the battery, so-called buckling, causes the caulking of the long hole and its vicinity to become loose, causing looseness between the terminal and the outer container, which can cause the battery to get caught when loaded into equipment that uses batteries. There was a problem. Also, when soldering one end of the lead extending from the battery side to the tip of this terminal piece, the tip of the terminal piece and the inner surface of the container are in close contact, so the heat during soldering will be transferred to the tip of the terminal piece. There was a problem in that it was not possible to concentrate quickly and reliable soldering could not be expected.

The present invention securely fixes the input/output terminal to the outer container to ensure soldering to one end of the lead, and also eliminates looseness between the container and the terminal to connect the input terminal section of the equipment used and the input/output terminal. This allows for reliable and smooth contact.

Means for Solving the Problems In order to solve these conventional problems, the present invention provides a pair of input/output terminals formed in the outer container by inserting U-shaped terminal pieces into a pair of elongated holes provided in the outer container. The terminal piece is formed by penetrating the terminal piece from the front side of the container and bending the tip end of the terminal piece so as to surround a protrusion provided on the inner side of the elongated hole.

Function: With this configuration of the input/output terminal, even if so-called buckling occurs, which causes the tip of the terminal piece to try to return to its original state after being bent, the degree of caulking of the tip of the terminal piece to the protruding strip will not change. The terminal piece is only slightly loosened, but the terminal piece maintains good caulking to the protrusion and bite into the corner of the long hole on the front side of the container, so there is no looseness, and the lead tip to the tip of the terminal piece remains secure. This allows for good soldering.

Example Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a state in the process of assembling a sealed storage battery in which a plurality of flat unit storage batteries electrically connected in series are housed in an external container under pressure. In the figure, reference numeral 1 denotes a pair of input/output terminals, which are provided on one 2a of the two insulating and rigid cases 2L and 2b constituting the outer container 2.

As is clear from FIG. 2, the terminal 1 is constructed by passing a U-shaped terminal piece 4 through a pair of elongated holes 3 provided in a case 22L from the front side of the case, and forming a protrusion provided on the inner surface of the elongated hole. The tip is bent to surround this lip 6 and crimped without any looseness.

The specific procedure for configuring this input/output terminal 1 is as shown in Fig. 3. First, insert a U-shaped terminal piece 4 into a pair of elongated holes 3 provided in the case 2& on the front side of the case. Make it correspond.

Next, as shown in B, the terminal piece 4 is passed through the elongated hole 3, the tip is made to protrude inside the case, and this protruding tip is inserted into the rib 6.
Fold it so that it almost surrounds the side ribs. The state after this bending is C, and the tip of the terminal piece 4 located inside the case is bent 11iA more times than before due to the presence of the lip 6, and is crimped to the lip and bent. There is a space between the tip and lip 6.

is occurring.

Between the case 2a provided with such an input/output terminal 1 and the other case 2b, three flat unit storage batteries 6 are stacked, and the respective lead terminals are connected in series by connecting pieces 7. are doing. Reference numeral 8 denotes a liquid-absorbing mat disposed across the safety valve portions 9 of these three unit storage batteries, which absorbs and removes the electrolyte released together with gas when the internal pressure of the unit storage batteries increases.

The positive terminal 10a and the negative terminal 10b of the storage batteries at both ends of these three series-connected unit storage batteries are connected to the lead 11.
It is connected to the input/output terminal 1 by.

In this state, as is clear from FIG. 2, the tip of the lead 11 is located inside the case of the input/output terminal 1 and is soldered to the inwardly bent tip of the lip 6.

As mentioned above, the bent tip of terminal 1 has a space between it and case 2 and is not in close contact with it, so if you solder the lead tip here, the heat from the solder will be transferred to the terminal. The heat is applied concentratedly on the tip, and the lead tip can be soldered quickly and reliably without causing any thermal effect on the case 22L. Figure 4 shows the connection of lead 11 completed and 2
The case 2 & 2b are integrated to form a completed outer container, and the three unit storage batteries inside the container are housed under pressure from the reaction surface side and under group pressure.

Effects of the Invention As described above, the input/output terminals of the sealed storage battery of the present invention are securely fixed to the outer container without any looseness, and the ends of the leads that connect to the storage battery housed inside the container are also securely soldered. has been done. Therefore, even when this battery is loaded into a device, the input/output terminals will not get caught on the terminals on the device side and cause damage.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a sealed storage battery according to an embodiment of the present invention during assembly, Fig. 2 is a cross-sectional view showing the input/output terminal portion formed on the outer container of the battery, and Fig. 3 is a FIG. 4 is a perspective view of a completed sealed storage battery, and FIG. 5 is a sectional view showing the input/output terminal portion of a conventional storage battery. 1...Input/output terminal, 2...Outer container,
3... Long hole, 4... U-shaped terminal piece, 6
...Protrusion (rep), 6...Unit storage battery, 101L, 101)...Positive and negative terminals of unit storage battery at both ends, 11... Lead. Name of agent: Patent attorney Toshio Nakao and one other person
Figure 2 (f Figure 3 Figure 5

Claims (2)

[Claims] (1) A plurality of flat unit storage batteries electrically connected in series, a rigid insulating outer container in which the plurality of unit storage batteries are pressurized and housed, and a pair of flat unit storage batteries formed in the outer container. It is equipped with input/output terminals and leads for connecting the pair of input/output terminals to the positive and negative terminals of the unit storage battery at both ends, and the pair of input/output terminals are inserted into a pair of elongated holes provided in the outer container in a U-shape. A sealed storage battery that is constructed by passing a shaped terminal piece through the hole and bending the tip of the terminal piece to surround a protrusion provided on the inner surface of a long hole. (2) The sealed storage battery according to claim 1, wherein the input/output terminal has a lead end soldered to the tip of the terminal piece bent so as to surround the protrusion.