JPH0438457Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of a mount type battery mounted on a printed circuit board.

[Prior Art] With the miniaturization of electronic devices, the amount of semiconductors used is rapidly increasing, and not only non-volatile memories but also volatile memories are increasing due to their large integration and cost advantages. Long-life primary batteries and rechargeable secondary batteries are used to back up this volatile semiconductor memory. When attaching this battery to a printed circuit board by connecting the lead terminals, the electrodes will be shot if the battery is attached to the printed circuit board and automatically soldered in an automatic soldering bath, so handle it separately from other parts and insert the battery lead. It was necessary to cover the holes with tape, automatically solder other parts, then install the battery and dip the solder. Furthermore, during the process of assembling electronic devices from solder dips into electronic devices, reverse voltage was sometimes applied to electronic components, especially semiconductors, resulting in their destruction. Furthermore, in order to avoid this risk, it was sometimes necessary to incorporate a printed circuit board into an electronic device, check its operation, and then install the battery.

[Means for solving the problem] This invention was made to eliminate the drawbacks of the conventional ones as described above. One electrode of the battery has a lead terminal fixed to it, and the other electrode has a lead terminal fixed to it. A movable lead with spring properties is used, and until the electronic device is operated, a part of the movable lead that touches the electrode is fixed to another fixed lead with a cuttable member, and the electric device is operated and checked. The object of the present invention is to provide a battery device in which the movable lead and the fixed lead are energized to melt the fusing member and function as a battery.

[Example] Hereinafter, an example of this invention will be described based on the drawings. In FIG. 1, reference numeral 1 denotes a battery, one electrode of which has a lead terminal 6 fixed to one electrode 2, and the other electrode 12 left blank. Furthermore,
The movable lead 4 has a spring property and is connected to the electrode 12 of the battery 1.
The end of the fixed lead 5 is stretched with a fusible material 7 such as copper alloy, nickel alloy, silver alloy, etc., which is fused with a minute current. A case 8 fixes the lead terminal 6, the movable lead 4, and the fixed lead 5, and includes a battery.

Next, the operation of this invention will be explained. 1st
A circuit diagram corresponding to the figure is shown in FIG. The electrode 3 of the movable lead 4 and the end of the fixed lead 5 are connected via the fusible body 7. Therefore, a current is applied to the movable lead 4 and the fixed lead 5 from the outside. A circuit diagram in this case is shown in FIG. Reference numeral 13 designates an external battery, in which the fusible body 7 is melted away, and the lead terminal 6 and the movable lead 4 are connected via the battery 1. A structural diagram in this case is shown in FIG. That is, the fusible material 7 is removed, and the electrodes 12 and 3 are in contact with each other and are in close contact with each other. Therefore, battery power can be extracted from between the lead terminal 6 and the movable lead 4. Further, the fixed lead 5 becomes independent.

FIG. 5 is a circuit diagram of an example of use, where 9 is a volatile memory IC that requires backup, 10 is a power supply for the electronic equipment, and 11 is a switch for operating this electronic equipment. In addition, the terminal b of the switch 11 is connected to the power supply terminal V of the volatile memory IC 9 and the fixed lead 5.
and a lead terminal 6 which connects this anode via a diode 14. Furthermore, the movable lead 4 is connected to ground. Then, when the switch 11 is turned on, a voltage is applied to the fixed lead 5 and the movable lead 4, a current flows, and the fusible body 7
is fused, and the battery 1 is interposed between the lead terminal 6 and the movable lead 4. At this time, the fixed lead 5 becomes independent and becomes useless on the circuit.

[Effects of the invention] As described above, according to this invention, a three-terminal battery device is created, and after this battery device is mounted on a printed circuit board together with other parts and automatic soldering is performed, the two terminals of the battery device are connected. By applying current and melting the fusible material between the two terminals, we created a normal two-electrode battery, so it can be used to test electronic devices or printed circuit board assemblies before they are put into operation. Since it does not function as a battery, there is no need to be careful when handling the battery, which makes it easy to handle, and when mounting on a printed circuit board, normal automatic soldering or solder dipping can be performed, improving work efficiency. This also eliminates the application of reverse voltage to semiconductors and the like after mounting, and eliminates the possibility of accidentally shooting the battery when a single battery device is used, reducing the number of battery defects. It is extremely effective and useful.

[Brief explanation of the drawing]

Fig. 1 is a structural diagram of a battery device according to an embodiment of this invention, Fig. 2 is a circuit diagram of Fig. 1 of this invention, and Fig. 3 is a battery device after processing as shown in Fig. 1 of this invention. FIG. 4 is a circuit diagram of the state shown in FIG. 3, and FIG. 5 is a circuit diagram of the battery device of this invention. 1... Battery, 2, 3, 12... Electrode, 4... Movable lead, 5... Fixed lead, 6... Lead terminal, 7... Fusible body, 9... Memory IC.

Claims (1)

[Claims for Utility Model Registration] 1. A movable lead 4 stretched by a fusible body 7 that is fused by flowing an electric current, and for pulling the movable lead 4 in one direction via the fusible body 7. a fixed lead 5 having a terminal; a battery 1;
A lead terminal 6 connected to one electrode 2 of the battery 1, the movable lead 4 and the fixed lead 5.
and the other electrode 12 of the battery 1 with which the electrode of the movable lead 4 comes into contact when the fusible body 7 is melted by applying current, and the electrode of the movable lead 4 is connected to the other electrode 12 of the battery 1. A battery device for mounting on a substrate, in which the output of the battery 1 is taken out between the lead terminal 6 and the movable lead 4 when the lead terminal 6 contacts the movable lead 4. 2. The battery device for board mounting according to claim 1, wherein the fusible body 7 is made of copper alloy, nickel alloy, silver alloy, etc.