CN2178950Y - The base of the improved relay base - Google Patents

Abstract

The improved base of relay base has square columns in the front corresponding to the terminal seats in two ends of the casing and cross columns in the number corresponding to the number of the inserted holes in the relay socket in the casing.

Description

The utility model relates to an improved base of a relay base. On the front of the base of the base, there are square and cross-shaped cylinders for supporting terminal fixing pieces and pin clips. The terminal block on the seat or the lower pressure generated when the relay is plugged in prevents the connecting metal sheet from being bent due to external force.

The relay uses electromagnetic action to achieve the function of switching circuits. It has been used in automatic control components in the early days. Because the relay can complete the circuit opening and closing without manual operation by means of electromagnetic action, and has a simple structure and low production cost, it is still widely used today. Applied to the control circuit. However, its volume is gradually reduced due to technological progress and technological improvement. At present, the relays with larger capacity commonly used in the market are still fixed, and the rest of the relays with smaller capacity are plug-in type. The difference from the fixed type is that it has a foot. This foot is the relay and the relay. The connection device of the external circuit, the external circuit is connected to the relay through the terminal block on the foot base. The plug-in relays can be roughly divided into two types: cylindrical and flat according to the shape of their pins. Among them, flat pin relays are smaller in size than cylindrical pin relays, and have a wider range of use, so they are currently the most commonly used.

Since the current relays have been miniaturized, it is hoped that the maximum performance can be obtained with the smallest occupied space. Compared with the relay base, it is natural to cooperate with the miniaturization to achieve the finishing touch. Lost", the result of miniaturization has resulted in the reduction of the available space inside the foot, increasing the difficulty of the internal connection of the foot. , there are direct welding between the pin clip and the terminal base with wires (see Figure 1) and stamped metal sheet connection (see Figure 2), among which direct wire welding is the simplest method, but its disadvantages Most of them are also described as follows:

1. The part of the welding wire must be covered with an insulating sleeve to prevent short circuit caused by accidentally touching other wires;

2. There are many welding procedures, which waste manpower and reduce production;

3. The connecting wires are messy, which hinders the appearance and damages the product image;

4. If the size shrinks in the future, it will increase the difficulty of welding;

And because the directly welded terminal block and pin clips are all fixed on the foot shell, so its base is a simple chimera, which does not help to improve the internal connection.

The more advanced ones use stamped connecting metal sheets. The advantages are that the matching position of the connecting metal sheets is fixed, easy to assemble, labor-saving, and the interior of the foot is beautiful, which is beneficial to the establishment of the image. However, there is only one on the foot base. The structural design for the positioning of the connecting metal sheet, this structure cannot bear most of the external force, so the connecting metal sheet is thicker and wider with stronger rigidity. The disadvantage is that it needs to consume more materials and mold costs, and the pin clips are metal sheets of different thicknesses from the connecting metal sheets, so it needs to be processed in series to make the pin clips fixed on the connecting metal sheets. In addition, in order to take into account the rigidity of the connecting metal sheet, its size must be considered, which will hinder the miniaturization of the foot in the future;

The purpose of this utility model is to provide an improved base of a flat-plate pin relay foot seat.

The utility model aims at the shortcomings of the above two, and makes it have a cylinder, which is used to support the terminal fixing piece and the pin clip that must bear external force at both ends of the connecting metal sheet, so that the external force is supported by the cylinder without The connecting metal piece can directly bear the external force, so the connecting metal piece can be made with a thinner design, and it can be stamped in one piece to match the thickness of the pin clip. In this way, in addition to increasing the appearance, it can also reduce unnecessary Necessary processing and waste of cost, and because the connecting metal sheet does not have to bear external force, its shape can be changed according to future needs, which is conducive to future development.

In order to make the utility model easier to understand, an embodiment is now illustrated with the accompanying drawings.

In the attached picture:

FIG. 1 is an internal connection diagram of a conventional foot seat welded with wires;

Fig. 2 is the external view of the connecting metal sheet formed by stamping of the conventional foot seat;

Fig. 3 is a combination diagram of the relay foot shell, the connecting metal sheet and the utility model;

Fig. 4 is the top view and the front view of the utility model;

Fig. 5 is a cross-sectional view of the foot of the utility model and the position related to the connecting metal sheet.

Please refer to Fig. 1, which shows the internal connection diagram of the known wire-welded foot base, the pin clip 21 and the terminal blocks 13, 14 are directly welded with the wire 5, and the wire 5 must be covered with an insulating sleeve 6.

Please refer to Figure 2, which shows the appearance of the stamped and formed connection metal sheet in the known foot seat. The connection metal sheet 2 has to consider its rigidity, so it adopts a wide and thick design, and the pin clip at the upper end 21 is a thinner metal sheet, so it must be connected in series on the connecting metal sheet 2, and the processing is relatively inconvenient.

Please refer to Fig. 3 again, shown in the figure is the combination diagram of relay foot housing, connecting metal sheet and the present utility model, and its assembly is: foot housing 1, there is relay socket 12 on its upper plane 11, and both sides end have The upper and lower rows of terminal blocks 13, 14 are separated by partitions; the connecting metal sheet 2 is arranged in the foot shell 1, and the required shape is punched out according to the assembly position. One end of the connecting metal sheet 2 can be accommodated in the jack 121 of the plane 11 relay socket 12 on the foot base, and is used to clamp the pin clip 21 of the relay pin, and the other end is a square terminal fixing piece 22, and the utility model pin Seat base 3, the structure of foot base is known. Now only illustrate with regard to the utility model part:

Please refer to Figures 4 and 5, which show a top view and a front view of the foot base 3 of the present utility model. The utility model relay foot base 3, its upper plane 31 both sides are equipped with upper and lower two rows of terminal blocks 13, 14 corresponding to the square long and short cylinders 311 and 312 in equal quantities with the two ends of the foot housing 1. The square long and short columns 311 and 312 are located directly below the upper and lower rows of terminal blocks 13 and 14 when the base 3 is embedded in the foot housing 1 . And between the upper end of each cylinder and the bottom of the terminal base, a terminal fixing piece 22 can just be placed, and make it close to the upper end of the cylinder. The upper end plane of the square cylinder 311, 312 is provided with a concave hole 4 that can place and fix the nut 41 in addition. The shape of the concave hole 4 is the outer shape of the nut 41. The top surface is just aligned with the upper planes of the square cylinders 13 and 14 , and the nuts are used to fix the terminal fixing piece 22 and the external terminal with screws 42 . The above-mentioned square long and short cylinders 311, 312 provide a function of supporting the terminal connecting piece 22 (please refer to FIG. 3 ). When applying external force to loosen or tighten the screw 42 on the terminal fixing piece 22 The pressure applied on the terminal fixing piece 22 can be offset to prevent the terminal fixing piece 22 from being bent and deformed due to the force. In addition, there is a gap 32 between the rectangular long and short columns 311 and 312 that allows the connecting metal piece to pass through, so that the connecting metal piece 2 can adopt a shorter connecting distance and reduce the waste of metal materials. The middle part of the upper plane of the base 3 is equipped with a cross-shaped column 313 equal to the number of sockets on the top of the base housing 1 . When the base is embedded on the housing, the cross-shaped cylinder 313 is just below the casing jack 121, and the upper end of the cross-shaped cylinder 313 can support the bottom of the pin clip 21 contained in the jack 121 (please Refer to Fig. 5), so that the pin clip 21 will not sink and deform due to excessive downward force when the relay is inserted. And each cross-shaped cylinder 313 is provided with the gap 32 that can allow the connecting piece 2 to pass through, to match the design of the square cylinder. That is, the foot base 3 of the present utility model, the square long and short cylinders 311 and 312 or the ten-shaped cylinder 313 on its upper plane, its purpose is to respectively make the terminal fixing piece 22 and the pin clip 21 positioned and can Offset the external force applied to the terminal fixing piece 22 and the pin clamping piece 21, and avoid the bending and deformation of the two metal pieces due to external force, so the connecting metal piece used in the utility model is thinner than the commonly used connecting metal piece, and the pin clamping piece can still be , Connecting sheet metal, terminal fixing sheet is integrally stamped and formed, and the shape of the connecting sheet is designed in the most economical way according to the needs, which will be more helpful for future development.

To sum up the above, the relay foot of the utility model has:

1. Mass production of relay sockets can be done economically and quickly;

2. The connecting metal sheet in the foot seat can be stamped into one piece;

3. Due to the distance between the columns, there is no concern of short circuit caused by contact of the connecting metal pieces;

4. The internal connection is simple and beautiful, which will greatly help to improve the design image of the product in the future; the function is indeed better than that of the commonly used relay socket, and it has met the requirements of the patent application. Please grant the patent.

Claims (3)

1, a kind of base of relay sole of improvement is characterized in that the front includes:

Be positioned at base front surface two ends shape in a row, equivalent is corresponding to the square cylinder of the upper and lower two row's terminal base numbers in relay runners two ends, this square cylinder at the base build-in behind the runners housing, just can keep flat the terminal stator that is connected sheet metal on it with between the terminal base bottom, can hold nut and make its fixing shrinkage pool and have on each cylinder, and the degree of depth of this shrinkage pool is the thickness of nut;

Be positioned at the base front surface stage casing, equivalent is corresponding to the cruciate cylinder of relay socket interpolation hole count in plane on the relay sole seat, this cruciate cylinder behind the runners housing, just is positioned at the bottom that jack below and bracketing place jack pin intermediate plate at the base build-in on it.

According to the base of the relay runners of claim 1, it is characterized in that 2, the square cylinder upper end is for the shrinkage pool of putting nut, it is shaped as nut is profile.

3, according to the base of the relay runners of claim 1, it is characterized in that between square, cruciate cylinder, having to make and connect the space that sheet metal passes through.

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