JPS63194574A - Power connection structure - Google Patents

Abstract

PURPOSE:To simplify assembly operation by fixing winding drawer parts of power transformer and choke coil directly at power buses. CONSTITUTION:A power connection structure is composed of power buses 1-4, winding drawer parts 5a-5d of a power transformer 5, and winding drawer parts 6a-6b of a choke coil 6. One ends of said power buses 1 and 2 are connected with winding drawer parts 5a and 5b, 6b, respectively, and ends of power buses 3 and 4, with winding drawer parts 5c and 5d, 6b, respectively. Then, the other ends of respective winding drawer parts 1-4 are connected with respective terminals of a diode stack 7. Thus, it is possible to constitute a circuit where a high current flows without going via auxiliary minor buses.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power supply connection structure, and particularly to a connection structure for a rectifier and smoothing circuit in a DC stabilized power supply that supplies a large current.

[Conventional technology]

2. Description of the Related Art Stabilized DC power supplies are often used as power supplies for electronic devices that make full use of electronics technology, such as information processing devices. As devices become smaller and more densely packed, there is a demand for larger capacity power supplies.

Particularly in the information processing field, there is a demand for stabilized DC power supplies that can generate several hundred amperes.

A switching regulator is also used in such a @ current stabilized power supply, and the above-mentioned large current flows through its rectifying and smoothing circuit. Therefore, the wiring of such a rectifying and smoothing circuit is required to have a material and structure suitable for stably supplying a predetermined large current.

Conventionally, thick wires with large diameters and plate-shaped conductors have been used for the connection wiring of rectifying and smoothing circuits such as the conventional one. However, such wiring material has little flexibility, so even if it is only a short length, it can be used as an auxiliary connection material (minor bus).
The disadvantage is that it may not be possible to connect as an electrical circuit unless you use .

Also, the structure of the connection wiring must be determined according to the structure of the terminals of the choke coil and pulse transformer.
Another drawback is that it is difficult to obtain a well-balanced and optimal connection wiring structure.

[Problem that the invention seeks to solve]

The problem to be solved by the present invention, in other words, the purpose of the present invention is to provide a power supply connection structure that improves the above-mentioned drawbacks by connecting the main components of a rectifying and smoothing circuit without using auxiliary connecting materials. It is about providing.

[Means for solving problems]

The power supply connection structure of the present invention has an integrated power supply bus that directly connects the secondary winding lead-out part of the power transformer and the terminal of the diode, and the power supply bus has an integrated power supply bus that directly connects the secondary winding lead-out part of the power transformer and the winding lead-out part of the first coil. are connected directly to each other and to the diode via the power supply bus.

〔Example〕

Hereinafter, a power supply connection structure according to the present invention will be explained with reference to the drawings.

FIG. 1 is a partial plan view showing one embodiment of the present invention. In the figure, the power supply connection structure includes power buses 1 to 4, winding lead-out parts 5a to 5d of the power transformer 5, and winding lead-out parts 6a to 6b of the choke coil 6.

One end of power bus 1 is connected to winding lead-out portion 5a, and one end of power bus 2 is connected to winding lead-out portions 5b and 6a.

Further, one end of the power bus 3 is connected to the winding lead-out portion 5C, and one end of the power bus 4 is connected to the winding lead-out portions 5d and 6b. The other end of each winding lead-out portion 1 to 4 is a diode stack 7
Connect to each terminal.

Figure 2 (a) is an enlarged view of the XX section in Figure 1;
bl is the same (an enlarged view of the Y-Y cross section. In the same figure (al), the power bus 1 is fixed by the screw 1a to the winding pull-out part 5a, and the power bus 3 is fixed by the screw 2a to the winding pull-out part 5C. In addition, in the same figure (bl), the power supply bus 2 is fixed by screws 3a to the winding pull-out parts 5b and 6a,
The power supply bus 4 is fixed to the winding lead-out portions 5d and 6b with screws 4a.

As described above, each winding of the power transformer 5 and the choke coil 6 can be directly connected to the power buses 1 to 4 without using any wiring auxiliary material.

FIG. 3 is a partial circuit diagram of the rectifying and smoothing circuit. In the figure, a connection point 11 connects the secondary winding of the power transformer T and the positive electrode of the diode DI, and corresponds to the power bus 1 described above. Connection point 12Fi connects the secondary winding of the power transformer T, the winding of the choke coil Ll, and the positive electrode of the diode D2, and corresponds to the power bus 2 described above. Similarly, the connection point 13 connects the other secondary winding of the power transformer T and the positive electrode of the diode D3, and the connection point 14 connects the other secondary winding of the power transformer T with the winding of the first coil L2. Connect the line and the positive terminal of diode D4. The connection point 13 corresponds to the power supply bus 3, and the connection point 14 corresponds to the power supply bus 4.

〔Effect of the invention〕

As explained in detail above, according to the power supply connection structure of the present invention, the winding lead-out portion of the power transformer and choke coil can be directly fixed to the power supply bus, so that the power supply connection structure of the present invention can be connected directly to the power supply bus without using an auxiliary minor bus. This has the effect of configuring a circuit through which current flows.

Therefore, it is possible to simplify the assembly work and provide a power source with less loss.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of a power supply connection structure according to the present invention, FIGS. 2(a) and (bl are partially enlarged cross-sectional views,
FIG. 3 is a circuit diagram. 1 to 4... Power bus, 5... Power transformer, 6 1st figure (z, 3(l ztt 1=b---6 mute 4 drawer sound p 2nd (Ku)

Claims (1)

[Scope of Claim] A connection structure for a rectifying and smoothing circuit in a DC stabilized power supply, etc., comprising an integrally molded power supply bus that directly connects a winding lead-out portion of a secondary winding of a power transformer and a terminal of a diode, A power supply connection structure characterized in that the winding lead-out part and the winding lead-out part of the choke coil are directly connected to each other and connected to the diode via the power supply bus.