CN203673012U - Multipath electric heaterdisconnectionwarning device - Google Patents
Multipath electric heaterdisconnectionwarning device Download PDFInfo
- Publication number
- CN203673012U CN203673012U CN201420021691.9U CN201420021691U CN203673012U CN 203673012 U CN203673012 U CN 203673012U CN 201420021691 U CN201420021691 U CN 201420021691U CN 203673012 U CN203673012 U CN 203673012U
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- circuit
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- electric heating
- comparer
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- Expired - Lifetime
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- 238000005485 electric heating Methods 0.000 claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 description 3
- 101000575029 Bacillus subtilis (strain 168) 50S ribosomal protein L11 Proteins 0.000 description 2
- 102100035793 CD83 antigen Human genes 0.000 description 2
- 101001070329 Geobacillus stearothermophilus 50S ribosomal protein L18 Proteins 0.000 description 2
- 101000946856 Homo sapiens CD83 antigen Proteins 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses a multipath electric heater disconnection warning device. The device comprises a plurality of electric heating tubes R1, the circuit of the electric heating tubes R1 is provided with a current transformer H1, the output end of the current transformer H1 is input to the input end of a comparator A1 after rectification of a bridge rectifier circuit BJ1 and filtering of a capacitor C1, the output end of the comparator A1 is output to a single status display circuit, the output end of each comparator A1 is also output to an overall sound-light alarm circuit, a comparison benchmark end of the comparator A1 is connected with the output end of a potentiometer W1, one end of the input end of the potentiometer W1 is connected to the ground while the other end of the input end is connected with a power supply E, the single status display circuit can display the working state of the electric heating tubes R1, and the overall sound-light alarm circuit alarms when any electric heating tube R1 breaks. The multipath electric heater disconnection warning deviceprovided by the utility model has the beneficial effects of being simple in circuit, low in cost, convenient to use and maintain, accurate and clear in disconnection alarm, and capable of ensuring uniform heating of multipath electric heating equipment.
Description
Technical field
The utility model relates to a kind of Multi-path electricity well heater break alarm device.
Background technology
The application of electric heating temperature control equipment is very extensive.Most of heating equipments all can install branched electric heater.For example: in an electric furnace, many group heating wire are generally housed; On the injection moulding cylinder of a plastic injection molding machine, can fill branched heating jacket; In a commutator compression mould, conventionally there are 4-16 heating tubes.These heating wire, heating jacket, heating tube conventionally and be connected in power circuit, shares temperature thermocouple and temperature controller, observing and controlling be the bulk temperature of calandria.In this equipment that many well heaters are housed, indivedual well heaters damage or broken string, bulk temperature does not often have a significant effect, do not reflect the fault of indivedual well heaters from temperature instrumentation, but really can obviously affect the temperature of local space, damage well heater environment temperature certainly on the low side, make bulk temperature constant, must also can make other local temperatures higher.If the well heater damaging is near thermopair, the temperature that thermopair records can be starkly lower than other position.On a commutator plasticator, the inhomogeneous meeting of this temperature causes the inhomogeneous even partially spent of product quality.
Utility model content
The utility model, according to above not enough, provides a kind of Multi-path electricity well heater break alarm device, and this warning device can be used for electric furnace, the plastic injection molding machine of branched heating jacket and the commutator compression mould of branched heating tube of many group heating wire.
The technical solution of the utility model is:
A kind of Multi-path electricity well heater break alarm device, comprise: some electric heating tube R1, in the circuit of electric heating tube R1, be provided with current transformer H1, the output terminal of current transformer H1 is through bridge rectifier circuit BJ1 rectification, after capacitor C 1 filtering, be input to the input end of comparer A1, the output terminal of comparer A1 outputs to single status display circuit, the output terminal of some comparer A1 also outputs to overall sound light alarming circuit, the benchmark end of comparer A1 is connected with the output terminal of potentiometer W1, input end one end ground connection of potentiometer W1, another termination power E, single status display circuit can show the duty of electric heating tube R1, in the time that arbitrary road electric heating tube R1 opens circuit, entirety sound light alarming circuit is reported to the police.
As preferably, described overall sound light alarming circuit comprises Sheffer stroke gate A3, several input ends of Sheffer stroke gate A3 are connected with the output terminal of several comparers A1 respectively, the output terminal of Sheffer stroke gate A3 is the input end to triode T through resistance R 4, the output terminal of triode T through LED 3, hummer SP to power supply E.
As preferably, described single status display circuit comprises, phase inverter A2, and input end one tunnel of this phase inverter A2 is connected with the output terminal of comparer A1, another road meets power supply E through resistance R 2, LED 1, and the output terminal of this phase inverter A2 meets power supply E through resistance R 3, LED 2.
The utlity model has that circuit is simple, cost is low, easy maintenance, breaking alarming accurately understand, can guarantee the beneficial effect of multichannel firing equipment homogeneous heating.
Brief description of the drawings
Fig. 1 is one-piece construction schematic diagram of the present utility model.
Embodiment
Now by reference to the accompanying drawings the utility model is further described:
As shown in the figure, a kind of Multi-path electricity well heater break alarm device, comprise: some electric heating tube R1 access 220VAC power supplys, in the circuit of electric heating tube R1, be provided with current transformer H1, current transformer H1 by the electric current sensing through bridge rectifier circuit BJ1 rectification, after capacitor C 1 filtering, be input to the input end of comparer A1, the output terminal of comparer A1 outputs to single status display circuit, the output terminal of some comparer A1 also outputs to overall sound light alarming circuit, the benchmark end of comparer A1 is connected with the output terminal of potentiometer W1, input end one end ground connection of potentiometer W1, the power supply E that another termination is 12 volts.
Single status display circuit comprises, phase inverter A2, input end one tunnel of this phase inverter A2 is connected with the output terminal of comparer A1, and another road meets power supply E through resistance R 2, LED 1, and the output terminal of this phase inverter A2 meets power supply E through resistance R 3, LED 2.
Entirety sound light alarming circuit comprises Sheffer stroke gate A3, several input ends of Sheffer stroke gate A3 are connected with the output terminal of several comparers A1 respectively, the output terminal of Sheffer stroke gate A3 is the input end to triode T through resistance R 4, the output terminal of triode T through LED 3, hummer SP to power supply E.
In the utility model, circuit before entirety sound light alarming circuit is unit warning circuit BL11, unit warning circuit BL12, unit warning circuit BL21, unit warning circuit BL22, these unit warning circuit structures are identical, these unit warning circuits can be input to respectively each input end of Sheffer stroke gate A3, in the time that quantity is more, also can be divided into two groups, unit warning circuit BL11, unit warning circuit BL12 etc. are as one group of two input end that are input to Sheffer stroke gate A3, unit warning circuit BL21, unit warning circuit BL22 etc. are as other one group two input ends that are input to Sheffer stroke gate A4, the output terminal of Sheffer stroke gate A3 is connected with resistance R 4 through isolating diode D1, the output terminal of Sheffer stroke gate A3 is also connected with resistance R 4 through isolating diode D2, many groups unit warning circuit shares an overall sound light alarming circuit, electric heating tube R1 can tandem tap K1.
Ultimate principle of the present utility model is, taking unit, a road warning circuit wherein as example, in the time that electric heating tube R1 normally works, current transformer H1 can detect ac current signal, this ac current signal is through bridge rectifier circuit BJ1 rectification, capacitor C 1 is filtered into the comparative voltage comparison in DC voltage and comparer A1, and higher than comparative voltage, comparer A1 output HIGH voltage, LED 1(redness) not conducting, LED 2(green) conducting, LED 3(redness) not conducting, hummer SP does not report to the police, in the time of electric heating tube R1 malfunction, comparer A1 output LOW voltage, LED 1(redness) conducting, LED 2(green) not conducting, LED 3(redness) conducting, hummer SP reports to the police.
Claims (3)
1. a Multi-path electricity well heater break alarm device, comprise: some electric heating tube R1, it is characterized in that, in the circuit of electric heating tube R1, be provided with current transformer H1, the output terminal of current transformer H1 is through bridge rectifier circuit BJ1 rectification, after capacitor C 1 filtering, be input to the input end of comparer A1, the output terminal of comparer A1 outputs to single status display circuit, the output terminal of some comparer A1 also outputs to overall sound light alarming circuit, the benchmark end of comparer A1 is connected with the output terminal of potentiometer W1, input end one end ground connection of potentiometer W1, another termination power E, single status display circuit can show the duty of electric heating tube R1, in the time that arbitrary road electric heating tube R1 opens circuit, entirety sound light alarming circuit is reported to the police.
2. a kind of Multi-path electricity well heater break alarm device as claimed in claim 1, it is characterized in that, described overall sound light alarming circuit comprises Sheffer stroke gate A3, several input ends of Sheffer stroke gate A3 are connected with the output terminal of several comparers A1 respectively, the output terminal of Sheffer stroke gate A3 is the input end to triode T through resistance R 4, the output terminal of triode T through LED 3, hummer SP to power supply E.
3. a kind of Multi-path electricity well heater break alarm device as claimed in claim 1 or 2, it is characterized in that, described single status display circuit comprises, phase inverter A2, input end one tunnel of this phase inverter A2 is connected with the output terminal of comparer A1, another road meets power supply E through resistance R 2, LED 1, and the output terminal of this phase inverter A2 meets power supply E through resistance R 3, LED 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420021691.9U CN203673012U (en) | 2014-01-15 | 2014-01-15 | Multipath electric heaterdisconnectionwarning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420021691.9U CN203673012U (en) | 2014-01-15 | 2014-01-15 | Multipath electric heaterdisconnectionwarning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203673012U true CN203673012U (en) | 2014-06-25 |
Family
ID=50969290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420021691.9U Expired - Lifetime CN203673012U (en) | 2014-01-15 | 2014-01-15 | Multipath electric heaterdisconnectionwarning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203673012U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765128A (en) * | 2016-08-17 | 2018-03-06 | 西安益翔航电科技有限公司 | A kind of current interruption detects circuit |
| CN108107340A (en) * | 2016-11-24 | 2018-06-01 | 天津曼洛尔科技有限公司 | A kind of circuit breaker detecting module |
-
2014
- 2014-01-15 CN CN201420021691.9U patent/CN203673012U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765128A (en) * | 2016-08-17 | 2018-03-06 | 西安益翔航电科技有限公司 | A kind of current interruption detects circuit |
| CN108107340A (en) * | 2016-11-24 | 2018-06-01 | 天津曼洛尔科技有限公司 | A kind of circuit breaker detecting module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
|
| CX01 | Expiry of patent term |