JPS5838467A - Output terminal protecting structure for power source - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power supply device constituting an electronic device, and more particularly to a short-circuit prevention structure for power terminals during adjustment, maintenance, and inspection of the device.

Power is supplied to the signal logic circuit of an electronic device mounted as a printed board shelf unit by using a unit power supply installed below the shelf unit in the housing of the electronic device, or by superimposing multiple unit power supplies. Dedicated power supplies housed in one housing are often low voltage (for example, 5V) and high current (for example, 850A), and as shown in the side view of Figure 1, the insulating pillow material is connected to the power supply unit's casing 1. For example, screw holes 4 are provided at predetermined positions on the side surfaces of two protruding rectangular cross-section power terminals 8 supported by the power supply cape/I/6. The conductor screw 7 is used to tighten the conductor screw 7.

In general, adjustment tests and maintenance inspections of electronic devices are often performed with the door of the housing open and the power terminal bar 8 exposed, and inspection workers may drop tools and parts, which may cause damage to multiple power supplies/components. There is a problem in that it bridges <-3, causing a short circuit and damaging electronic devices. In order to deal with this problem, a conventional method has been adopted in which a soft plastic bag or a sugar bag material 8 is used to cover the power terminal bar 3, crimp terminal 5, and conductor screw 4 all at once. It is necessary to change the mold type of the insulating bag material 8 depending on the cross-sectional shape of the terminal bar and the mounting position of the crimp terminal, and the cost of protective parts and work is very high.The present invention aims to solve the above problems. , which is intended to provide Iyb of the insulation protection structure of the cable lead-out part of the universal power terminal bar with low parts cost and excellent workability, and to the side of the multiple power terminal bars protruding from the front of the case. In a low-voltage, high-current power supply unit in which a crimp terminal provided on a cape μ to be led out is screwed, at least the upper surface of the power terminal bar is covered with an insulating member, and the crimp terminal is inserted into a vertically fit projecting body of the member. Hereinafter, preferred embodiments of the present invention, which are characterized in that the terminals are constructed so that they can be embedded and folded, will be described in detail with reference to the drawings. 2 and 8 are partially sectional front and side schematic diagrams showing an example of the output terminal protection structure of a power supply device according to the present invention, and FIGS. 4 and 5 are schematic diagrams of other embodiments, FIG. 6 shows insulation details 4. applied to other embodiments. This is a perspective view of A, including the symbols in FIG. 1, where l indicates the front plate of the power supply case;
2 is an insulating pillow material, B is a power terminal bar, 4 is a screw hole, 5 is a crimp terminal, 6 is a power supply cape I, 7 is a conductor screw, 8 tabs,
10' indicates an insulating gutter member.

An embodiment of the present invention shown in FIGS. 2 and 3 shows a tap hole 4 of a source terminal bar 3 connected to a rectangular section I' extending from a front plate 1 of a power supply case supported by an insulating pillow material 2. In contrast to the wiring mounting structure in which the crimp terminal 6 of the power supply cable 6 is secured with a bisque with a washer in between, the top surface of the power terminal bar 3 is designed to protect the negative side and bare protrusion of the power terminal bar in an umbrella-like manner. An insulating part dpj having a predetermined width and a thickness of about 1.5% is attached over the entire length of the square-shaped surface, such as a Bakelite plate.

This mounting method can be held down with a sinking screw or attached with adhesive. This method is a universal method that can be implemented at extremely low cost, and is effective in preventing abnormal short circuits during adjustment tests and maintenance inspections of electronic equipment.

Next, another embodiment will be described with reference to FIGS. 4 and 5. This embodiment uses the insulating bag material 80 in the conventional FIG.
Instead, a general-purpose insulating cap 10 is used, and as shown in the perspective view of FIG. A gutter width partition part 101 and a screw head accommodating slit 1 having a continuous gutter shape and accommodating crimp terminals 5 at predetermined intervals on the gutter wall.
02 and the screw tip accommodating slit 108 are each cut out to a predetermined length from an insulating gutter member 10' which is continuously formed in the Japanese direction. Then, as shown in FIGS. 4 and 5, the insulating cap IO is placed over the power terminal bar 3 by engaging the width separating part 101 and the slit groove 102 to the protrusion formed by the crimp terminal 6 and the conductor screw 7. It is used by covering it. In the case of this example as well, standardized insulating caps can be obtained at low cost and it is extremely easy to order them, so it is even more effective in preventing abnormal short circuit failures during adjustment tests and maintenance inspections of electronic equipment. .

[Brief explanation of drawings]

FIG. 1 is a perspective view illustrating a conventional example of the output terminal protection structure of a power supply device, and FIGS. Figure 1 and Figure SA6 show perspective views of insulating gutter members applied to other examples. In the figures, 1 is the front plate of the power supply case, 2 is the insulating pillow material, B is the power terminal bar, and 4 is the screw hole. , 5 is a crimp terminal,
6 is a power supply cable, 7 is a conductor screw, 8 is a soft insulating bag material,
Reference numeral 9 indicates an insulating member, 10 an insulating gap, and 10' an insulating gutter member.

Claims (1)

[Claims] In a low-voltage, high-current, single-current power supply unit formed by screwing crimp terminals provided at the ends of cables to be led out to the sides of a plurality of power source terminals protruding from the front of the case,
An output terminal protection structure for a power supply device, characterized in that at least an upper surface of the power supply terminal bar is covered with an insulating member, and the crimp terminal is embedded in a vertical projection of the member.