JPS5939992B2 - Manufacturing method of multi-voltage rectifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multivoltage rectifier of the type in which a plurality of capacitors and a plurality of diodes are directly connected without using a wiring board.

A conventional multi-voltage rectifier of this type has a molded structure having lead-out portions 2 between a plurality of capacitor elements 1 arranged at predetermined intervals and on their outer surfaces, as shown in FIG. Processed press.

This uses a capacitor block with terminals 3 connected by soldering. By arranging the capacitor element body 1 at a predetermined interval in this way, by forming a predetermined interval between the lead-out part 2 of the &L terminal 3 and the end of the capacitor element body 1, corona in that part can be avoided. This is to prevent the occurrence of discharge. When constructing a multiplier rectifier using such a capacitor block, the capacitor body 1 and the terminal 3 are first connected by soldering to form the capacitor block, and then the lead-out part 2 is connected to the capacitor block by soldering. The diode lead wires had to be soldered to each other, and although the soldering process was the same, they had to be processed separately. Also, between the press terminal 3 itself, between the capacitor body 1, and between the end of the capacitor body 1 and the terminal 3.
Since it is necessary to perform processing to form a predetermined distance between the terminal and the lead-out portion 2, the shape becomes complicated, which increases the cost of the terminal itself, and the solder connection process is complicated as described above. As a result, there was a disadvantage that the cost of the multi-voltage rectifier increased. The present invention has been made in view of the above points, and an object of the present invention is to provide a method for manufacturing a multi-voltage rectifier that can simultaneously solder connect all required components and is also advantageous in terms of cost. For this purpose, a coil-shaped terminal is used as the terminal connected between the capacitor bodies, and the diode lead wire is inserted between the coiled terminals. This feature is characterized in that the two are soldered together at the same time.

An embodiment of the present invention will be described in detail below with reference to the drawings.

2 and 3, reference numeral 11 denotes a plurality of capacitor bodies each having electrodes 12 and 13 formed on both sides;
4 is a coil-shaped terminal interposed between these capacitor bodies 11, which connects each capacitor body 11 in series, and 15 is a terminal of the capacitor body 1 located outside.
The capacitor body 11 and the coiled terminals 14 and 15 constitute capacitor blocks 16 and 11, which are connected to the coiled terminal 14 and connected to the coiled terminal 14.

A plurality of diodes 18 are arranged across two sets of capacitor blocks 16 and 17 arranged at a predetermined interval, and are connected in series via coiled terminals 14 and 15.

Reference numerals 19, 20, 21, and 22 are an input side lead wire, a ground side lead wire, a high voltage output lead wire, and a medium/high voltage output lead wire, respectively, and their tips are inserted and fixed into coiled terminals 14 and 15, respectively. .

In other words, the multivoltage rectifier shown in FIGS. 2 and 3 is constructed into an equivalent circuit as shown in FIG. Two sets of capacitor blocks 16 and 17 are constructed by alternately arranging the terminals. In this case, of course,
Needless to say, the carefully arranged capacitor body 11 and coiled terminals 14, 15 must be fixed using a predetermined jig or the like so that they do not come apart. These two sets of capacitor blocks 16, 17 are arranged at a predetermined interval, and the lead wires of the diode 18 and the lead wires 19, 20 for each purpose are connected in the gap between the predetermined coiled terminals 14, 15. Insert the tips of 21 and 22 and hold them together,
Thereafter, pressure is applied from both ends of each capacitor block using a predetermined jig or the like to hold the intervening component. Note that if a predetermined pressing force is already applied when forming a capacitor block with the capacitor body and coiled terminal, it is necessary to apply pressure again after inserting the lead wire of the diode etc. into the coiled terminal. There isn't. After that, the entire component is immersed in molten solder to simultaneously solder connect the capacitor electrode and the coiled terminal, and the coiled terminal and each lead wire, respectively, and then apply an insulating coating to the whole as necessary. The entire device is molded with resin to complete the device. As described above, the method for manufacturing a multi-voltage rectifier of the present invention includes arranging coiled terminals between a plurality of capacitor bodies and on the outer surface, and inserting required lead wires into the gaps between the coiled terminals. After that, each component is held while being pressed from both ends of the capacitor block, and the entire component is immersed in solder. This makes it possible to solder all components at once, which greatly simplifies the assembly process. Since it is simplified and the terminal itself is simply formed into a coil shape, it is advantageous in terms of cost, and the multi-voltage rectifier itself is also inexpensive.

In addition, since there is no extra protrusion like the lead-out portion of a conventional press terminal, the entire structure is more compact. The configuration of the multi-voltage rectifier is not limited to that of the above-described embodiment, and may have a circuit configuration that does not take out medium and high voltages.

[Brief explanation of drawings]

FIG. 1 is a front view of a conventional capacitor block, FIG. 2 is a front view of a multi-voltage rectifier according to the manufacturing method of the present invention, and FIG.
The figure is a side view thereof, and FIG. 4 is its equivalent circuit diagram. 11... Capacitor body, 12, 13... Electrode, 14, 15... Coiled terminal, 16, 17
...Capacitor block, 18...Die auto-19...Input side lead wire, 20.
...Ground side lead wire, 21...High voltage output lead wire, 22...Mid-high voltage output lead wire.

Claims (1)

[Claims] 1. Two sets of capacitor blocks are arranged at a predetermined interval, each consisting of a plurality of capacitor bodies having electrodes on both sides, with coil terminals connected between each capacitor body and on the outer surface thereof,
Insert the lead wires of a plurality of diodes so that they span each other's capacitor blocks, and insert the required lead wires such as input/output lead wires into the predetermined coiled terminals, and then By holding each component while pressing it from both ends of each capacitor block and immersing the entire component in solder, it is possible to simultaneously solder connect the capacitor electrode and the coiled terminal, and the coiled terminal and each lead wire. A method for manufacturing a multi-voltage rectifier featuring features.