CN203053601U - Temperature detection device - Google Patents
Temperature detection device Download PDFInfo
- Publication number
- CN203053601U CN203053601U CN201220603999.5U CN201220603999U CN203053601U CN 203053601 U CN203053601 U CN 203053601U CN 201220603999 U CN201220603999 U CN 201220603999U CN 203053601 U CN203053601 U CN 203053601U
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- Prior art keywords
- resistance
- temperature
- temperature signal
- operational amplifier
- resistor
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Abstract
The utility model discloses a temperature detection device. The temperature detection device comprises a temperature signal detection circuit, a temperature signal amplification circuit and a single chip microcomputer; the temperature signal detection circuit includes a temperature sensor, a first resistor and a second resistor; the temperature signal amplification circuit comprises an operational amplifier, a third resistor, a fourth resistor, a fifth resistor and a sixth resistor; the temperature signal detection circuit converts sampled temperature values of powered devices into voltage values and outputs the voltage values to the temperature signal amplification circuit; the voltage values are amplified by the temperature signal amplification circuit; the amplified voltage values are outputted to the single chip microcomputer; and the inputted voltage values are processed by the single chip microcomputer, such that real-time temperature of the powered devices can be obtained. The temperature detection device of the utility model can carry out real-time detection on the temperature of the powered devices so as to prevent electrical fires and eliminate the root causes of the electrical fires.
Description
Technical field
The utility model relates to a kind of temperature-detecting device, relates in particular to a kind of for the temperature-detecting device of control with the protection switch controller.
Background technology
Control and protection switch controller have the function that mode that far distance automatic controlling and the control of manpower on the spot has concurrently is carried out control operation; have cooperation time-the current protection characteristic; have control and protection from movingly, after the short circuit function of operation continuously, can realize control and protection to motor load, distribution load.But; traditional control and protection switch controller only have the overload long delay; the short circuit short time delay; short circuit is instantaneous, undercurrent, three-phase imbalance; basic control functions such as overvoltage/undervoltage protection; can't the real time temperature of main line and consumer be detected, cause consumer Yin Wendu too high and cause fire, can not comprehensively bring protection to electric fault.
The utility model content
At above-mentioned technical matters, the purpose of this utility model is to provide a kind of temperature-detecting device, and it can detect in real time to the temperature of consumer, prevents the generation of electrical fire.
For reaching this purpose, the utility model by the following technical solutions:
A kind of temperature-detecting device, this device comprises temperature signal testing circuit, temperature signal amplifying circuit and single-chip microcomputer;
Described temperature signal testing circuit comprises temperature sensor, first resistance and second resistance, and described temperature signal amplifying circuit comprises operational amplifier, the 3rd resistance, the 4th resistance, the 5th resistance and the 6th resistance;
Wherein, one end ground connection of described temperature sensor, the other end and the node after an end of first resistance is connected connect an end of second resistance, the other end of described first resistance connects power supply, the input end in the same way of another termination operational amplifier of described second resistance, the reverse input end of described operational amplifier and the node after an end of the 3rd resistance is connected connect an end of the 4th resistance, the other end of described the 4th resistance and the node after the output terminal of operational amplifier is connected connect the input end of single-chip microcomputer, the other end of described the 3rd resistance connects an end of the 5th resistance, one end of the 6th resistance, the other end ground connection of described the 5th resistance, the other end of described the 6th resistance is connected with described power supply.
Especially, described temperature signal testing circuit also comprises first electric capacity, one end ground connection, and the other end is connected with the input end in the same way of operational amplifier.
Especially, described temperature signal amplifying circuit also comprises second electric capacity and the 7th resistance, one end of described second electric capacity and node concatenation operation amplifier after described power supply is connected, other end ground connection, one end of described the 7th resistance is connected with described power supply, the output terminal of other end concatenation operation amplifier.
The utility model is converted to magnitude of voltage by temperature sensor in the temperature signal testing circuit with the temperature value of the consumer that samples and exports to the temperature signal amplifying circuit, by the temperature signal amplifying circuit described magnitude of voltage is amplified, export to single-chip microcomputer, by single-chip microcomputer the magnitude of voltage of input is handled, obtained the real time temperature of consumer.The utility model can detect in real time to the temperature of consumer, when temperature is higher than the alarming value that control sets with the protection switch controller, with disconnecting circuit or warning, prevents and stop the generation of electrical fire from the source.
Description of drawings
The temperature-detecting device structural drawing that Fig. 1 provides for the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with drawings and Examples.
Please refer to shown in Figure 1ly, temperature-detecting device comprises in the present embodiment: temperature signal testing circuit, temperature signal amplifying circuit and single-chip microcomputer (not shown).
Described temperature signal testing circuit comprises temperature sensor PT, first resistance R 1, second resistance R 2 and first capacitor C 1, and described temperature signal amplifying circuit comprises operational amplifier UA, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7 and second capacitor C 2.
Wherein, the end ground connection GND of described temperature sensor PT, the other end and the node after an end of first resistance R 1 is connected connect an end of second resistance R 2, the other end of described first resistance R 1 connects power supply VCC, the input end in the same way of another termination operational amplifier UA of described second resistance R 2, the reverse input end of described operational amplifier UA and the node after an end of the 3rd resistance R 3 is connected connect an end of the 4th resistance R 4, the other end of described the 4th resistance R 4 and the node after the output terminal of operational amplifier UA is connected connect the input end of single-chip microcomputer, the other end of described the 3rd resistance R 3 connects an end of the 5th resistance R 5, one end of the 6th resistance R 6, the other end ground connection GND of described the 5th resistance R 5, the other end of described the 6th resistance R 6 is connected with described power supply VCC.One end ground connection GND of described first capacitor C 1, the other end is connected with the input end in the same way of operational amplifier UA.One end of described second capacitor C 2 and node concatenation operation amplifier UA after described power supply VCC is connected, other end ground connection GND, an end of described the 7th resistance R 7 is connected with described power supply VCC, the output terminal of other end concatenation operation amplifier UA.
The course of work of the present utility model is as follows: power supply VCC selects the power supply of 5V for use, and the resistance of temperature sensor PT can change along with temperature variation.First resistance R 1 is connected with temperature sensor PT and is formed bleeder circuit, the magnitude of voltage that temperature sensor PT is formed by the temperature of the consumer that samples is received the input end in the same way of operational amplifier UA through second resistance R 2, operational amplifier UA exports to the single-chip microcomputer processing with described magnitude of voltage after amplifying processing, thereby obtains the real time temperature of consumer.When this temperature is lower than the protection value of setting, temperature-detecting device will detect the temperature of consumer again, and when this temperature is higher than the alarming value of setting, single-chip microcomputer will be protected output, disconnecting circuit or warning.
The technical solution of the utility model can detect in real time to the temperature of consumer, prevents and stopped the generation of electrical fire from the source.
Above-mentioned only is preferred embodiment of the present utility model and institute's application technology principle; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed in the protection domain of the present utility model.
Claims (3)
1. a temperature-detecting device is characterized in that, comprises temperature signal testing circuit, temperature signal amplifying circuit and single-chip microcomputer;
Described temperature signal testing circuit comprises temperature sensor, first resistance and second resistance, and described temperature signal amplifying circuit comprises operational amplifier, the 3rd resistance, the 4th resistance, the 5th resistance and the 6th resistance;
Wherein, one end ground connection of described temperature sensor, the other end and the node after an end of first resistance is connected connect an end of second resistance, the other end of described first resistance connects power supply, the input end in the same way of another termination operational amplifier of described second resistance, the reverse input end of described operational amplifier and the node after an end of the 3rd resistance is connected connect an end of the 4th resistance, the other end of described the 4th resistance and the node after the output terminal of operational amplifier is connected connect the input end of single-chip microcomputer, the other end of described the 3rd resistance connects an end of the 5th resistance, one end of the 6th resistance, the other end ground connection of described the 5th resistance, the other end of described the 6th resistance is connected with described power supply.
2. temperature-detecting device according to claim 1 is characterized in that, described temperature signal testing circuit also comprises first electric capacity, one end ground connection, and the other end is connected with the input end in the same way of operational amplifier.
3. temperature-detecting device according to claim 2, it is characterized in that, described temperature signal amplifying circuit also comprises second electric capacity and the 7th resistance, one end of described second electric capacity and node concatenation operation amplifier after described power supply is connected, other end ground connection, one end of described the 7th resistance is connected with described power supply, the output terminal of other end concatenation operation amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220603999.5U CN203053601U (en) | 2012-11-15 | 2012-11-15 | Temperature detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220603999.5U CN203053601U (en) | 2012-11-15 | 2012-11-15 | Temperature detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203053601U true CN203053601U (en) | 2013-07-10 |
Family
ID=48736543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220603999.5U Expired - Fee Related CN203053601U (en) | 2012-11-15 | 2012-11-15 | Temperature detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203053601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319306A (en) * | 2018-01-26 | 2018-07-24 | 德施普科技发展温州有限公司 | A kind of chamber temperature control system |
-
2012
- 2012-11-15 CN CN201220603999.5U patent/CN203053601U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108319306A (en) * | 2018-01-26 | 2018-07-24 | 德施普科技发展温州有限公司 | A kind of chamber temperature control system |
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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: 20130710 Termination date: 20151115 |
|
| EXPY | Termination of patent right or utility model |