JPS59103275A - Battery socket - Google Patents

Abstract

PURPOSE:To make it possible to select terminal inserting holes depending on interval of pinholes on the substrate by providing a plurality of pairs of terminal inserting holes in difference interval to an insulating socket body. CONSTITUTION:The two pairs of terminal inserting holes 5 and 6, 5-1 and 6-1 which allow insertion of pin terminals are formed in such a way that they are opening respectively at the upper part, at the rising wall 4 and recessed part 3 of the socket body 1 which has formed coaxially the battery holding recessed part 3 with the opening part 2. The intervals of two pairs of terminal inserting holes are difference as indicated by L and l and these intervals match the pinhole intervals at the side of printed circuit board. In the case of holding only one flat type battery 9 consisting of a silver battery or mercury battery, the pin terminals 10, 11 inserted to the terminal inserting holes 5, 6 are respectively welded to the case and cover of battery 9 at the sharp and protruded end portion 12 and the sealing shoulder part of battery is held by a ring-shaped tongue portion 8 so that it is not removed from the recessed part 3.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a socket for incorporating a button-type or coin-type battery (hereinafter referred to as a flat battery) into an electronic device that does not require battery replacement. More specifically, the present invention provides a battery socket that allows easy attachment of one or more laminated flat batteries, securely holds the batteries, and eliminates the risk of poor contact with bottle-shaped terminals.

Conventional Structure and Problems Conventionally, a battery socket for holding a flat battery in which a bottle-shaped terminal is inserted into a bottle-shaped terminal insertion hole arranged on a printed circuit board has been used on the battery contacting surface of an electrically insulating board. A bottle-shaped terminal is provided in contact with either the positive or negative terminal of the flat battery, and an elastic terminal is provided on the battery contacting surface of this board or another surface to contact the other terminal of the battery to press and fix the battery to the board. It is known that a terminal is provided and both terminals extend in the same direction like a semiconductor element glue.

In this case, although not shown, since the battery mounting surface has a smooth planar shape in an electrically insulating board in which pin-shaped terminals are embedded, a special conductive material is used to suppress and fix the battery to the board. Even though it is made of elastic metal, if abnormal vibrations or shocks are applied to an electronic device that incorporates this battery socket into a printed circuit board, the force of the elastic terminal to hold the battery in place may However, when the abnormal vibration force is large, there is a defect that the battery separates from between the board and the elastic terminal.Purpose of the InventionThe battery socket of the present invention not only solves the above-mentioned drawbacks of the conventional battery, but also It also securely holds laminated flat batteries.

Structure of the Invention In order to achieve the above-mentioned object, the battery socket of the present invention has an opening in the center, a battery holding recess concentrically with the opening, and a generally dish-shaped socket with a rising wall formed on the outside thereof. A plurality of pairs of terminal inserters at different intervals are formed in the insulating socket body so that one opens on the inner bottom surface of the battery holding recess and the other opens on the upper surface of the rising wall. The device is characterized in that an annular tongue piece for holding the battery is provided on the upper circumferential edge so as to protrude inwardly. This prevents the terminal from separating from the battery and makes it possible to securely hold the battery.

Description of examples Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a battery socket main body according to an embodiment of the present invention, and FIG. 2 shows a cross-sectional view taken along the line ■-■ in FIG. FIG. 3 is a cross-sectional view of the battery socket of the present invention holding one flat battery, and FIG. 4 is a cross-sectional view of the battery socket of the present invention holding a stack of flat batteries.

In the figure, reference numeral 1 designates a socket main body having an opening 2 for welding in the center, a battery holding recess 3 concentrically formed with the opening, and a rising wall 4 formed on the outside thereof. Two pairs of terminal insertion holes 5 and 6 and 5-1 and 6-1 into which pin-shaped terminals are inserted are formed in the rising wall 4 and the recess 3 so as to open at the upper surface, respectively. Guide grooves 7 and 7-1 for fixing pin-shaped terminals are provided in the insertion holes 5 and 5-1, which are continuous with the opening 2.

The intervals between these two pairs of terminal insertion holes are different as shown by L and 2, and are arranged to match the interval between pinholes on the printed circuit board side. Further, reference numeral 8 denotes a battery holding annular tongue piece provided on the inner circumferential upper edge of the rising wall 4 so as to face the recess 3, and is in contact with the shoulder of the flat battery 9 to ensure its holding. It is something.

Figure 3 shows a flat battery 9 consisting of a silver battery or a mercury battery.
The pin-shaped terminals 10 and 11 inserted into the terminal insertion holes 6 and 6 are welded to the battery 90 case and the lid at their sharp small protrusions 12, respectively. Further, the sealing shoulder portion of the battery is held by an annular tongue piece 8 so as not to be pulled out from the recess 3.

FIG. 4 shows an example in which the periphery of two flat batteries 9, 9' is covered with a heat-shrinkable resin tube 13 to hold the integrated laminate 14, and the pin-shaped terminals 10 and 11 are attached to the exposed upper battery. The cover 15 of 9' and the lower case 16 are welded to each other by sharp small protrusions 12. In this example, the sealing shoulder of the lower battery 9 is held down by the annular tongue piece 8 via the tube 13, and the stack 14 is prevented from being pulled out from the battery holding recess 3.

Effects of the Invention When holding the flat type battery of the present invention using a socket, it cannot be attached to a board unless the pinhole spacing of the printed circuit board on the electronic device side matches. Since the terminal insertion holes are provided at different intervals, the terminal insertion holes to be used can be selected depending on the pinhole intervals on the board. Moreover, even if the pin-shaped terminal is loosely fitted into the terminal insertion hole, the socket body contacts the printed circuit board and provides a buffering effect.
The stain pond is securely held by the annular tongue piece, and the battery can be effectively prevented from being pulled out from the socket recess even if subjected to vibration or impact. Moreover, it is possible to provide a battery socket that has a reliable battery holding function with an inexpensive structure without using elastic terminals, and can be easily incorporated into electronic equipment.

[Brief explanation of the drawing]

Fig. 1 is a top view of a battery connector according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the line ■-d in Fig. 1, and Figs. 3 and 4 are sockets holding batteries. FIG. 1... Socket body, 2... Opening,
3...Battery holding recess, 4...Rising wall,
5, 6...Terminal insertion hole, 8...Annular tongue piece, 9,9'...Flat type battery, 10.11...
...Pin terminal.

Claims (1)

[Claims] A generally dish-shaped insulating socket body has an opening in the center, a battery holding recess concentrically with the opening, and a rising wall on the outside thereof, and a plurality of pairs of terminal insertion holes at different intervals are inserted into the socket body. One opening is formed on the inner bottom surface of the holding recess and the other opening is formed on the upper surface of the rising wall, and an annular tongue piece for holding the battery is protruded inward from the inner peripheral upper edge of the rising wall facing the battery holding recess. A battery socket characterized by being provided as follows.