CN2311046Y - Electric appliance working state self-checking display device - Google Patents
Electric appliance working state self-checking display device Download PDFInfo
- Publication number
- CN2311046Y CN2311046Y CN 97243829 CN97243829U CN2311046Y CN 2311046 Y CN2311046 Y CN 2311046Y CN 97243829 CN97243829 CN 97243829 CN 97243829 U CN97243829 U CN 97243829U CN 2311046 Y CN2311046 Y CN 2311046Y
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- diode assembly
- electric appliance
- diode
- utility
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- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model discloses an electric appliance working state self-checking display device. The utility model is provided with a diode assembly D1-D3, and the diodes of the diode assembly D1-D3 are connected in series. A luminous tube LED is connected with the both ends of the diode assembly D1-D3 in parallel after the luminous tube LED is connected with a current-limiting resistor R in series. The utility model is connected with the line of a checked electric appliance in series, a detection signal is obtained by using the characteristic, and the characteristic is that the definite voltage can be dropped when the electric conduction of the positive direction of the diode is realized. When the electric appliance is in normal operation, by using the diode assembly D1-D3, the current can generate the definite pressure drop, and the luminous tube LED which is connected with the circuit in parallel can do luminous action. When the fault of the electric appliance happens, the line is not provided with the current, and the luminous tube LED stops doing the luminous action. Only a diode assembly is needed to be reversely connected with the diode assembly D1-D3 in parallel, and the diodes of the diode assembly are connected in series; thus, the utility model can be used for an alternating current circuit.
Description
The utility model relates to a kind of electrical work state self check display, but the duty of the various electrical equipment of remote monitoring.
In producing and living, some equipment are usually arranged, whether whether some electrical equipment on it is in normal operating conditions, directly influence entire equipment and run well, and even relate to personal safety, and can't be subjected to artificial supervision all the time, as the various pilot lamp on the automobile, industrial air cooling blower fan or the like.Useful infrared telemetry pilot lamp and computer glitch self-checking unit detect in the prior art, but these apparatus structure complexity, the cost height.Chinese patent ZL9121771.2 discloses a kind of " automobile signal light monitor ", it utilizes the current balance type principle, be serially connected with relay on the signal lamp circuit, a termination of its electric contact has alarm, and relay J is the reed switch relay that is wound with the two-wire parallel wound coil.This monitor can only use on the pilot lamp of work in pairs, and can not use separately, and when two pilot lamp all were in malfunction, the relay no current passed through, and alarm can not reported to the police yet.Relay needs special processing and fabricating, cost height.In the actual track, also be serially connected with a working station indicator in the circuit after two pilot lamp parallel connections, be out of order, then also will cause automobile indicator not work, increased failure rate on the contrary as this lamp.In addition, must mate between three lamps, otherwise can't operate as normal.This device can't be expanded use in alternating circuit.
The purpose of this utility model provides a kind of simple in structure, and is with low cost, reliable operation, and it is convenient to implement, the electrical work state self check display that versatility is good.
The purpose of this utility model realizes by following measure.
A kind of electrical work state self check display has a diode in series group D1～D3, luminotron LED and the two ends that are parallel to diode group D1～D3 after current-limiting resistance R connects.
The last reverse parallel connection of diode group D1～D3 has another diode in series group D4～D6.
Be parallel with a hummer HA on diode group D1～D3.
Compared with prior art the advantage that the utility model had is: the feature extraction detection signal that this autoscope has certain voltage to fall when utilizing the diode forward conduction, circuit is made of diode, luminotron and resistance commonly used, and is simple in structure, with low cost.Only need directly be serially connected in the circuit of detected electrical equipment place and get final product the enforcement convenience.Each autoscope works alone, intuitive display, reliable operation.Versatility is good, only needs the diode group of one group of differential concatenation of multi-parallel promptly to can be used in the alternating circuit.
The combination accompanying drawing is introduced embodiment of the present utility model below.
Fig. 1 is the circuit theory diagrams that are used for the utility model electrical work state self check display of DC circuit.
Fig. 2 is the circuit theory diagrams that are used for the utility model electrical work state self check display of alternating circuit.
Embodiment 1:
The utility model is used for the structure of DC circuit, as shown in Figure 1, have a diode group D1～D3 by 3 silicon diodes serial connection, luminotron LED and the two ends that are parallel to diode group D1～D3 after current-limiting resistance R connects are parallel with a hummer HA on diode group D1～D3.
The utility model is serially connected in by electricity measurer place DC circuit, in certain side marker light W place circuit of automobile.Automobile when this directional steering, pole changer K1 closure.At this moment, W is in normal operating conditions as steering indicating light, and then electric current flows to earth terminal by power supply E positive pole through autoscope, side marker light W.Because every silicon diode has 0.7 volt pressure drop when forward conduction, on the silicon diode group D1～D3 of 3 series connection 2.1 volts pressure drop is arranged, make that luminotron LED and the hummer HA on the circuit in parallel with it enters duty, luminous and sounding type simultaneously.At this moment, if pilot lamp W does not work (short circuit or open circuit), no current passes through in the circuit, and the voltage at diode group D1～D3 two ends has not existed yet, and luminotron LED and hummer HA dead electricity stop luminous and sounding type.Among the figure, RD is a fuse.This autoscope can be common to operating voltage at all automobiles of 6 volts-30 volts.
Embodiment 2:
Shown in Figure 2, be used for the structure of alternating circuit for the utility model.On the basis of embodiment 1 described circuit, the diode group D4～D6 of reverse parallel connection one serial connection on diode group D1～D3 is to guarantee the unimpeded of alternating circuit.Three groups of pipe group D4～D6 are made of three silicon diode series connection equally.In addition, do not use hummer on the autoscope of present embodiment.
The utility model is serially connected in by electricity measurer place alternating circuit, in the circuit of process computer blower fan DB place.With K switch 2 closures.At this moment, DB is in normal operating conditions as blower fan, then as direction of current and diode group D1～when the D3 direction is consistent, produce 2.1 volts of pressure drops thereon, makes that the luminotron LED on the parallel circuit is luminous.At this moment, if blower fan DB does not work (because of circuit fusing fuse dead electricity or open circuit), no current passes through in the circuit, and then luminotron LED stops luminous.
Claims (3)
1. electrical work state self check display is characterized in that: have a diode in series group D1～D3, luminotron LED and the two ends that are parallel to diode group D1～D3 after current-limiting resistance R connects.
2. electrical work state self check display according to claim 1 is characterized in that: the last reverse parallel connection of diode group D1～D3 has another diode in series group D4～D6.
3. electrical work state self check display according to claim 1 and 2 is characterized in that: be parallel with a hummer HA on diode group D1～D3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97243829 CN2311046Y (en) | 1997-10-30 | 1997-10-30 | Electric appliance working state self-checking display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97243829 CN2311046Y (en) | 1997-10-30 | 1997-10-30 | Electric appliance working state self-checking display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2311046Y true CN2311046Y (en) | 1999-03-17 |
Family
ID=33952718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97243829 Expired - Fee Related CN2311046Y (en) | 1997-10-30 | 1997-10-30 | Electric appliance working state self-checking display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2311046Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442335C (en) * | 2006-04-20 | 2008-12-10 | 启耀光电股份有限公司 | Light-emitting device |
-
1997
- 1997-10-30 CN CN 97243829 patent/CN2311046Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442335C (en) * | 2006-04-20 | 2008-12-10 | 启耀光电股份有限公司 | Light-emitting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BAOSHAN IRON & STEEL CO., LTD. Free format text: FORMER NAME OR ADDRESS: BAOSHAN STEEL GROUP IRON AND STEEL CO LTD |
|
| CP03 | Change of name, title or address |
Address after: 201900, Fujin Road, Shanghai, Baoshan District orchard Patentee after: Baoshan Iron & Steel Co., Ltd. Address before: 201900 No. 1, middle front road, Baoshan District Shanghai factory Patentee before: Baoshan Iron & Steel (Group) Co., Ltd. |
|
| 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 |