CN2275763Y - Fuse with photoelectric display - Google Patents
Fuse with photoelectric display Download PDFInfo
- Publication number
- CN2275763Y CN2275763Y CN 95204590 CN95204590U CN2275763Y CN 2275763 Y CN2275763 Y CN 2275763Y CN 95204590 CN95204590 CN 95204590 CN 95204590 U CN95204590 U CN 95204590U CN 2275763 Y CN2275763 Y CN 2275763Y
- Authority
- CN
- China
- Prior art keywords
- fuse
- emitting diode
- light
- resistor
- illuminating circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a fuse with photoelectric display, which belongs to the field of appliance elements. The utility model is characterized in that a fuse wire in the fuse is connected in parallel with a photoelectric display circuit which is composed of a resistor and a light emitting diode which is arranged in a through hole of the middle part of the plug cover of the fuse can be directly seen from outside. When the fuse wire is in order, the light emitting diode is off; when the fuse wire is fused, the light emitting diode emits light to specifically display the error.
Description
The utility model relates to a kind of improved fuse, and particularly a kind of fuse that can show the fuse switching automatically belongs to the electric component field.
A large amount of RCIA type semi-seal plugtype fuses that use in low-voltage distributing line, its fuse is installed in fuse inside.When consuming device cuts off the power supply, check to judge it is blown fuse or other fault if the measurement of no electrician's instrument then needs the slotting lid of fuse pulled up.Particularly when the fuse installation site is higher, overhaul more inconvenient.
The utility model is that RCIA type semi-seal plugtype fuse is improved slightly, gives in the middle part of its porcelain is inserted lid and stays a through hole, and in the hole light-emitting diode is installed.When fuse was intact in the fuse, light-emitting diode did not work; Light-emitting diode sends light when blown fuse, has represented the blown fuse in this fuse, clearly shows guilty culprit.
The utility model is achieved in that illuminating circuit in parallel on the fuse in RCIA type semi-seal plugtype fuse, and this illuminating circuit is made up of with the resistor of two different resistances a light-emitting diode.Wherein the resistor of big resistance is connected with light-emitting diode (utmost point of light-emitting diode connects to appointing), and both vacant pins electrically connect respectively in that fuse is slotting and cover on the fixed screw of two copper contact pin.Less resistance resistors two pins electrically connect with light-emitting diode two pins respectively and form both in parallel.Because the two ends of fuse also are to electrically connect in copper contact pin, so be in parallel with whole illuminating circuit.When fuse was intact, electric current directly passed through fuse, illuminating circuit two ends no-voltage, and light-emitting diode does not work.Because the resistance of illuminating circuit is very big, so can not influence the insurance function of fuse.When blown fuse, supply voltage adds to illuminating circuit, makes lumination of light emitting diode after the resistor step-down.The resistor that is connected in parallel on luminous two pipes is used for protecting the unlikely overcurrent of light-emitting diode to burn.Two resistors are installed in fuse and insert the lid bottom and give in the groove of keeping somewhere earlier, and light-emitting diode is installed in fuse and inserts the lid middle part and give in the through hole that stays and can directly see from the top.
Owing to adopt such scheme, the intact and fusing situation of fuse in the fuse is reflected with bright intuitively by going out of light-emitting diode, clearly show guilty culprit.
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is an electrical schematic diagram of the present utility model.
Fig. 2 is the structural map of fuse embodiment.(the fuse pedestal does not draw)
1 bronze medal contact pin fixed screw among the figure, 2 light-emitting diodes, 3 fuses, 4 than big resistance resistors, 5 less resistance resistors, 6 bronze medal contact pin, 7 insulating cements, 8 fuses are inserted lid, and 9 insert the through holes that cover, the 10 slotting bottom recesses, 11 fuse support columns covered.
The two ends of fuse in the accompanying drawing 1 (3) are connected on respectively in two copper contact pin (6).Resistor (4) is connected with light-emitting diode (2), and both vacant pins are the illuminating circuit two ends, connects with two copper contact pin respectively, to form in parallel with fuse.Resistor (5) is in parallel separately with light-emitting diode (2).Usually resistor (4) is 200 kilo-ohms, and resistor (5) is 5 kilo-ohms.When fuse is intact, illuminating circuit two ends no-voltage, light-emitting diode does not work.When blown fuse, supply voltage pressurization illuminating circuit two ends make light-emitting diode (2) luminous after resistor (4) step-down.
The illuminating circuit two ends are crimped on respectively on the two bronze medal contact pin fixed screws in the accompanying drawing 2.Light-emitting diode (2) is placed in the through hole (9), and resistor (4), (5) are placed in the groove (10).
Claims (2)
1. be with the fuse of photoelectric display, resistor and the illuminating circuit that light-emitting diode is formed by two different resistances is housed in this fuse, wherein the resistor of big resistance is connected with light-emitting diode, both vacant pins are the two ends of illuminating circuit, resistor two pins of less resistance are electrically connected the parallel connection that forms both respectively with light-emitting diode the two poles of the earth pin, it is characterized in that: the illuminating circuit two ends are connected electrically in respectively on the fixed screw of two copper contact pin of fuse, rely on the fastening force of screw to make it closely to contact with copper contact pin, with constitute with this fuse in fuse in parallel.
2, fuse according to claim 1 is characterized in that: light-emitting diode is installed in fuse and inserts in the through hole at lid middle part and can directly see from the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204590 CN2275763Y (en) | 1995-03-04 | 1995-03-04 | Fuse with photoelectric display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95204590 CN2275763Y (en) | 1995-03-04 | 1995-03-04 | Fuse with photoelectric display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2275763Y true CN2275763Y (en) | 1998-03-04 |
Family
ID=33857068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95204590 Expired - Fee Related CN2275763Y (en) | 1995-03-04 | 1995-03-04 | Fuse with photoelectric display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2275763Y (en) |
-
1995
- 1995-03-04 CN CN 95204590 patent/CN2275763Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 1998.03.04 |