JP3129165U - Safety shut-off terminal device with light-emitting display - Google Patents

Abstract

To quickly assemble and reduce costs.
An outer casing having two inspection ports and one translucent portion provided on the upper surface and an opening provided on the bottom surface, and the outer casing and the outer casing provided from the opening, respectively, are arranged in parallel. A terminal blade portion composed of two metal conductive pieces; and a light emitter installed in the light transmitting portion, wherein a fuse is connected between the two metal conductive pieces, and an upper end portion of the two metal conductive pieces. The L-shaped frame is provided with an end portion that is inserted into the two inspection ports, and an inner side portion near the upper end portion of the two metal conductive pieces is extended outward and a free end faces upward. And the two electrodes of the light emitter make contact with the two L-shaped frames, respectively, so that it can be assembled quickly and cost can be reduced.
[Selection] Figure 4

Description

  The present invention relates to a safety interrupting terminal device with a light emitting display, and more particularly, to a safety interrupting terminal device that can be assembled quickly and can reduce manufacturing costs.

  FIG. 1 shows a three-dimensional exploded view of a conventional fuse terminal with a light emitting display. As shown in the figure, the fuse terminal includes the following members.

  The outer casing 1 includes an opening 11 that communicates with an upper part and a bottom part.

  The terminal blade 2 is composed of two parallel metal conductors 21, a fuse 22 is connected between the two metal conductors 21, an end 24 is provided at the upper end 23 of the metal conductors 21, and An L-shaped frame 25 having an inner side portion of the upper end 23 of the metal guide piece 21 extending outward and a free end facing upward is provided.

  The upper lid 3 is a transparent body, and covers the opening 11 on the upper surface of the outer casing 1 and includes two inspection ports 31.

  The light emitter 4 is installed on the two L-shaped frames 25 of the terminal blade portion 2, and this light emitter 4 is further packaged after two light emitting diodes are connected in parallel, and two external contacts are provided on the surface thereof. It is done.

  FIG. 2 shows a three-dimensional assembly diagram of a conventional fuse terminal with a light emitting display. As shown in this figure, the terminal blade portion 2 is inserted correspondingly from the upper surface opening 11 of the outer casing 1 and is fixed in the outer casing 1 so that the upper and lower ends of the terminal blade portion 2 extend from the outer casing 1. Exposed. After the light emitter 4 is installed on the two L-shaped frames 25 of the terminal blade 2, the upper lid 3 is closed to the opening 11 on the upper surface of the outer casing 1, and the two ends 24 of the terminal blade 2 are connected to the upper lid 3. A corresponding entry into the mouthpiece 31 is made. As can be seen from the above-described conventional assembly structure, this conventional fuse terminal with a light emitting display requires two complicated molds to manufacture the upper lid 3 and the outer casing 1 respectively, which means an increase in manufacturing cost. In addition, it is necessary to fix the light emitter 4 by soldering the light emitter 4 on the terminal blade portion 2 in advance during assembly.

  FIG. 3 shows a circuit diagram of a conventional fuse terminal with a light emitting display. As shown in this figure, the light emitter 7 is configured by connecting two light emitting diodes 73 in parallel in the opposite direction and then connecting a resistor 74 in series. When the fuse is broken, the current is emitted in the same direction as the current flow. The diode is selected to pass through and emit light, but since the light emitting diode 73 is connected in two opposite directions, it is difficult to reduce the entire volume of the light emitter 7.

  For this reason, how to provide a safety shut-off terminal device with a light-emitting display that can be assembled quickly and increase the discrimination rate of faulty fuses at the time of power supply disconnection, and can suppress the manufacturing cost, is an active aspect of the present invention. The point to explore.

  In view of the above-mentioned drawbacks of the conventional fuse terminals, the present invention has been researched based on many years of experience in the related industries of the inventor in order to overcome the imperfections, and can be assembled quickly and keep costs down. Developed a safety shut-off terminal device with light emitting display.

  A main object of the present invention is to provide a safety shut-off terminal device with a light emitting display that can be assembled quickly and can be reduced in cost.

  In the present invention, two inspection ports and one translucent part are provided on the upper surface, and an outer casing having an opening on the bottom surface, and the opening is installed in the outer casing and arranged in parallel. A terminal blade portion composed of two metal conductive pieces; and a light emitter installed in the light transmitting portion, wherein a fuse is connected between the two metal conductive pieces, and an upper end portion of the two metal conductive pieces. The L-shaped frame is provided with an end portion that is inserted into the two inspection ports, and an inner side portion near the upper end portion of the two metal conductive pieces is extended outward and a free end faces upward. And the two electrodes of the light emitter form contact with the two L-shaped frames, respectively, and the light emitter is a bipolar light emitting diode and at least one voltage dividing resistor connected to the bipolar light emitting diode. Composed of two of the light emitters When one end of the piezoresistor is connected to each of the two metal conductors, the terminal blade is installed in a load device or a power source, and the current exceeds the rated value, the fuse forms a burnout open circuit, Passing through the light emitter, the light emitter emits light. As a result, it is possible to quickly assemble and reduce the cost.

  In addition, the light emitting device has two conductive layers with different polarities on the wafer, and the light emitting device can be connected to other load devices without the need to distinguish between positive and negative electrodes. It is preferable to keep one conductive layer in a conductive state.

  Further, it is preferable that the light emitting device is an SMD (Surface Mount Device) bipolar light emitting diode (BIPOLAR LED).

  Moreover, it is preferable that the outer mold | type of the said translucent part comprises the arc surface which protruded outside from the said outer casing upper surface.

  In order to promote the full understanding of the purpose, characteristics, and effects of the present invention to the members of the judging committee, the present invention will be described in detail based on specific examples and drawings.

  FIG. 4 shows a three-dimensional exploded view of the present invention. As shown in this figure, the present invention includes the following members.

  The outer casing 5 is formed by integral molding, and has two inspection ports 51 and one translucent portion 53 provided on the upper surface thereof, and an opening is formed on the bottom surface.

  The terminal blade portion 6 is installed in the outer casing 5 from the opening and is composed of two metal conductors 61 arranged in parallel. A fuse 62 is connected between the two metal conductors 61, and the two End portions 63 that enter the two inspection ports 51 are respectively provided at the upper end portions of the metal conducting pieces 61, and the inner side portions near the upper end portions of these two metallic conducting pieces 61 are extended outward to be free. An L-shaped frame 64 whose end faces upward is formed.

  The light emitter 7 is installed in the translucent part 53 of the outer shell 5, and the outer mold of the translucent part 53 exhibits an arc surface protruding outward from the upper surface of the outer casing 5, so that a light collecting effect is obtained. The light emitted from the light emitter 7 can be made clearer by passing through the arc surface, and the two electrodes of the light emitter 7 are in contact with the two L-shaped frames, respectively.

  FIG. 5 shows a three-dimensional assembly drawing of the present invention. As shown in this figure, the light emitter 7 is installed corresponding to the inside of the translucent portion 53 of the outer casing 5, and the upper end of the terminal blade portion 6 is inserted and fixed from the opening on the bottom surface of the outer casing 5. The end portions 63 at the upper end portions of the two metal guide pieces 61 are respectively entered corresponding to the two inspection ports 51 of the outer casing 5, and the translucent portion 53 simultaneously presses and joins the light emitter 7 and the L-shaped frame 64.

  FIG. 6 shows a circuit diagram of the present invention. As shown in this figure, the light emitter 7 (for example, SMD (surface mounted component) bipolar light emitting diode 71 (BIPOLAR LED) can be, but is not limited to) is a bipolar light emitting diode 71 and the bipolar light emitting diode 71. The voltage dividing resistor 72 is connected in series to the front end and the rear end. Among them, the light emitter 7 (which can be, for example, the SMD bipolar light emitting diode 71 (BIPOLAR LED), but is not limited to this) has two conductive layers having different polarities formed on the wafer. preferable. That is, it is preferable to employ a bipolar light emitting diode that functions as a diode in both directions. As a result, the light emitter 7 can be connected to other load devices without having to separate the positive and negative contacts. At one moment, one conductive layer is kept in a conductive state, and one end (opposite side of the diode) of the two voltage dividing resistors 72 is connected to the two metal conductors 61, respectively, and the terminal blade 6 is connected to the load device 8 or the power source 9. Can be installed between. When the current exceeds the rated value, the fuse 62 forms a burned-out open circuit, and the current is passed through the light emitter 7. When the current passes, the light emitter 7 emits light, and the repair personnel have the circuit structure of this part. Notify that there is an abnormality.

  By the structural design of the present invention, the cost of the mold can be greatly reduced, and the soldering process between the light emitter 7 and the terminal blade portion 6 can be omitted at the time of assembly, so that the assembly can be performed quickly and reliably. be able to.

  As described above, the design of the safety shut-off terminal device with light-emitting display of the present invention is the first application that has never existed so far, and its configuration is really simple and practical, and has practicality and inventive step, It belongs to a rational idea. For this reason, we would like to apply for a utility model registration here based on the law and to register the utility model after examination by the authorities.

It is a three-dimensional exploded view of a conventional fuse terminal with a light emitting display. It is a three-dimensional assembly drawing of a conventional fuse terminal with a light emitting display. It is a circuit diagram of the conventional fuse terminal with a light emission display. It is a three-dimensional exploded view of the present invention. It is a three-dimensional assembly drawing of the present invention. It is a circuit diagram of the present invention.

Explanation of symbols

  1 outer casing, 11 opening, 2 terminal blade, 21 metal conductor, 22 fuse, 23 upper end, 24 end, 25 L-shaped frame, 3 upper lid, 31 inspection port, 4 light emitter, 5 outer casing, 51 inspection Measure, 53 Translucent part, 6 Terminal blade part, 61 Metal conductor, 62 Fuse, 63 End, 64 L-shaped frame, 7 Light emitter, 71 Bipolar light emitting diode, 72 Voltage divider resistor, 73 Light emitting diode, 74 Resistor, 8 load device, 9 power supply.

Claims (4)

  Two metal inspection openings and one translucent part are provided on the top surface, and an outer casing having an opening at the bottom, and two metal guides arranged in parallel from the opening to the outer casing. A terminal blade portion composed of a piece, and a light emitter installed in the light transmitting portion, wherein a fuse is connected between the two metal conductive pieces, and the two metal conductive piece upper ends are connected to the two An L-shaped frame is provided in which an end portion that enters the inspection port is provided, and an inner side portion near the upper ends of the two metal conductive pieces is extended outward, and a free end faces upward. The two electrodes of the light emitter form contact with the two L-shaped frames, respectively, and the light emitter comprises a bipolar light emitting diode and at least one voltage dividing resistor connected to the bipolar light emitting diode; Two voltage dividing resistors of the light emitter One end is connected to each of the two metal conductors, the terminal blade is installed in a load device or a power source, and when the current exceeds the rated value, the fuse forms a burnout open circuit, and the current is supplied to the light emitter. A safety shut-off terminal device with a light-emitting display, wherein the light-emitting device emits light by passing through.   The light-emitting device has two conductive layers with different polarities on the wafer, and the light-emitting device can be connected to other load devices without having to distinguish between positive and negative electrodes, and The safety interrupting terminal device with a light-emitting display according to claim 1, wherein one conductive layer is kept conductive.   The safety shut-off terminal device with a light emitting display according to claim 1 or 2, wherein the light emitting device is a SMD (Surface Mount Device) bipolar light emitting diode (BIPOLAR LED).   The safety interrupting terminal device with a light emitting display according to claim 1, wherein an outer mold of the translucent part forms an arc surface protruding outward from the upper surface of the outer casing.

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