CN203561904U - Temperature control circuit for incubators - Google Patents
Temperature control circuit for incubators Download PDFInfo
- Publication number
- CN203561904U CN203561904U CN201320744796.2U CN201320744796U CN203561904U CN 203561904 U CN203561904 U CN 203561904U CN 201320744796 U CN201320744796 U CN 201320744796U CN 203561904 U CN203561904 U CN 203561904U
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- diode
- relay
- switch
- transformer
- electric contact
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Abstract
The utility model discloses a temperature control circuit for incubators. The circuit comprises an alternating-current power supply, a switch, a fuse, a transformer, a first diode, a second diode, a third diode, a relay, a capacitor, a first resistor, a second resistor, an electric contact thermometer, a neon indicating lamp, a heater and a bidirectional thyristor. When the measured temperature is lower than a set value of the electric contact thermometer, a temperature contact of the electric contact thermometer is in an off state, the relay is released, a normally closed contact switch of the relay is switched on, the bidirectional thyristor obtains trigger current and is switched on, the heater is energized to start heating, and the neon indicating lamp is lighted up. When the temperature rises to the set temperature of the electric contact thermometer, the temperature contact of the electric contact thermometer is connected, the relay is pulled in, the normally closed contact switch of the relay is switched off, trigger current obtained by the bidirectional thyristor obtains disappears, the heater is powered off and stops heating, and the neon indicating lamp goes out. The temperature control circuit for incubators has the advantages of simple structure, fewer components and low cost.
Description
Technical field
The utility model relates to a kind of temperature control circuit, relates in particular to a kind of temperature control circuit for incubator.
Background technology
Incubator refers to that the conditions such as the humiture of manual simulation oviparous animal maternal instinct incubation develop into fertile egg the cabinet of life through certain hour, be mainly used in hatching of breeding eggs, embryonic development, plant, hatchery etc., for people's production and life provides a great convenience, economic benefit is high.But existing incubator temperature control circuit structure more complicated, components and parts are more, and cost is higher.
Utility model content
The purpose of this utility model provides a kind of temperature control circuit for incubator with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of temperature control circuit for incubator, comprise AC power, switch, fuse, transformer, the first diode, the second diode, the 3rd diode, relay, electric capacity, the first resistance, the second resistance, electric contact thermometer, neon indicator, well heater and bidirectional thyristor, the first end of described AC power is connected with the first end of described switch, the second end of described switch is connected with the first end of described fuse, the second end of described fuse respectively with the first end of the primary coil of described transformer, the first end of described the second resistance is connected with the second anode of described bidirectional thyristor, the second end of described AC power respectively with the first end of described neon indicator, the second end of the first end of described well heater and the primary coil of described transformer is connected, the second end of described neon indicator is connected with the first end of described the first resistance, the second end of described the first resistance is connected with the second end of described well heater and the first anode of described bidirectional thyristor respectively, the control utmost point of described bidirectional thyristor is connected with the first end of the normally closed contact switch of described relay, the second end of the normally closed contact switch of described relay is connected with the second end of described the second resistance, the first end of the secondary coil of described transformer is connected with the positive pole of described the first diode, the second end of the secondary coil of described transformer is connected with the positive pole of described the second diode, the negative pole of described the second diode respectively with the negative pole of described the first diode, the first end of described electric capacity, described the 3rd negative pole of diode and the first end of described relay are connected, the second end of described relay is connected with described the 3rd positive pole of diode and the first end of described electric contact thermometer respectively, the second end of described electric contact thermometer is connected rear ground connection with the middle part of secondary coil and second end of described electric capacity of described transformer respectively.
The beneficial effects of the utility model are:
The utility model is a kind of temperature control circuit for incubator, and in the temperature of incubator, during lower than design temperature, Automatic-heating, when temperature rises to design temperature, disconnects automatically, has circuit structure simple simultaneously, and components and parts are few, advantage with low cost.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of temperature control circuit for incubator of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of temperature control circuit for incubator of the utility model, comprise AC power AC, switch S, fuse FU, transformer T, the first diode D1, the second diode D2, the 3rd diode D3, relay J, capacitor C, the first resistance R 1, the second resistance R 2, electric contact thermometer Q, neon indicator HL, well heater EH and bidirectional thyristor BCR, the first end of AC power AC is connected with the first end of switch S, the second end of switch S is connected with the first end of fuse FU, the second end of fuse FU respectively with the first end of the primary coil of transformer T, the first end of the second resistance R 2 is connected with the second anode of bidirectional thyristor BCR, the second end of AC power AC respectively with the first end of neon indicator HL, the second end of the primary coil of the first end of well heater EH and transformer T is connected, the second end of neon indicator HL is connected with the first end of the first resistance R 1, the second end of the first resistance R 1 is connected with the first anode of bidirectional thyristor BCR with the second end of well heater EH respectively, the control utmost point of bidirectional thyristor BCR is connected with the first end of the normally closed contact switch J-1 of relay J, the second end of the normally closed contact switch J-1 of relay J is connected with the second end of the second resistance R 2, the first end of the secondary coil of transformer T is connected with the positive pole of the first diode D1, the second end of the secondary coil of transformer T is connected with the positive pole of the second diode D2, the negative pole of the second diode D2 respectively with the negative pole of the first diode D1, the first end of capacitor C, the 3rd negative pole of diode D3 and the first end of relay J are connected, the second end of relay J is connected with the first end of electric contact thermometer Q with the positive pole of the 3rd diode D3 respectively, the second end of electric contact thermometer Q is connected rear ground connection with the middle part of secondary coil and the second end of capacitor C of transformer T respectively.
Turn on-switch S, AC power AC is after transformer T step-down, the first diode D1 and the second diode D2 rectification and capacitor C filtering, for relay J provides working power.While rigidly connecting energize, dut temperature is lower than the setting value of electric contact thermometer Q, the temperature contact of electric contact thermometer Q is in off-state, relay J discharges, the normally closed contact switch J-1 of relay J connects, bidirectional thyristor BCR obtains trigger current and conducting, and well heater EH energising starts heating, and neon indicator HL lights.When temperature rises to the design temperature of electric contact thermometer Q, the temperature contact of electric contact thermometer Q is connected, relay J adhesive, the normally closed contact switch J-1 of relay J disconnects, the trigger current of bidirectional thyristor BCR is disappeared, well heater EH power-off and stop heating, simultaneously neon indicator HL extinguishes.
Claims (1)
1. the temperature control circuit for incubator, it is characterized in that: comprise AC power, switch, fuse, transformer, the first diode, the second diode, the 3rd diode, relay, electric capacity, the first resistance, the second resistance, electric contact thermometer, neon indicator, well heater and bidirectional thyristor, the first end of described AC power is connected with the first end of described switch, the second end of described switch is connected with the first end of described fuse, the second end of described fuse respectively with the first end of the primary coil of described transformer, the first end of described the second resistance is connected with the second anode of described bidirectional thyristor, the second end of described AC power respectively with the first end of described neon indicator, the second end of the first end of described well heater and the primary coil of described transformer is connected, the second end of described neon indicator is connected with the first end of described the first resistance, the second end of described the first resistance is connected with the second end of described well heater and the first anode of described bidirectional thyristor respectively, the control utmost point of described bidirectional thyristor is connected with the first end of the normally closed contact switch of described relay, the second end of the normally closed contact switch of described relay is connected with the second end of described the second resistance, the first end of the secondary coil of described transformer is connected with the positive pole of described the first diode, the second end of the secondary coil of described transformer is connected with the positive pole of described the second diode, the negative pole of described the second diode respectively with the negative pole of described the first diode, the first end of described electric capacity, described the 3rd negative pole of diode and the first end of described relay are connected, the second end of described relay is connected with described the 3rd positive pole of diode and the first end of described electric contact thermometer respectively, the second end of described electric contact thermometer is connected rear ground connection with the middle part of secondary coil and second end of described electric capacity of described transformer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744796.2U CN203561904U (en) | 2013-11-21 | 2013-11-21 | Temperature control circuit for incubators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744796.2U CN203561904U (en) | 2013-11-21 | 2013-11-21 | Temperature control circuit for incubators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203561904U true CN203561904U (en) | 2014-04-23 |
Family
ID=50511615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320744796.2U Expired - Fee Related CN203561904U (en) | 2013-11-21 | 2013-11-21 | Temperature control circuit for incubators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203561904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556128A (en) * | 2018-04-26 | 2018-09-21 | 长沙远大住宅工业集团股份有限公司 | A kind of curing system and its maintenance process for producing prefabricated components |
-
2013
- 2013-11-21 CN CN201320744796.2U patent/CN203561904U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556128A (en) * | 2018-04-26 | 2018-09-21 | 长沙远大住宅工业集团股份有限公司 | A kind of curing system and its maintenance process for producing prefabricated components |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20141121 |
|
| EXPY | Termination of patent right or utility model |