CN212059118U - Infrared temperature sensor - Google Patents
Infrared temperature sensor Download PDFInfo
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- CN212059118U CN212059118U CN202020996135.9U CN202020996135U CN212059118U CN 212059118 U CN212059118 U CN 212059118U CN 202020996135 U CN202020996135 U CN 202020996135U CN 212059118 U CN212059118 U CN 212059118U
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- temperature sensor
- central controller
- infrared
- infrared temperature
- circuit board
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Abstract
The utility model discloses an infrared temperature sensor, which comprises a shell, wherein the shell comprises an upper cover, the upper cover is connected with a protective shell through screws, a cavity is arranged in the protective shell, a circuit board is arranged in the cavity, an infrared receiver is arranged at one side of the circuit board, a central controller is also arranged on the circuit board, a display screen is arranged at one side of the central controller, a binding post is arranged at the other end of the central controller, the other end of the binding post is provided with a wiring port sensor which monitors the temperature of a measured object when in operation, after the temperature exceeds a protection set value, a signal output end W sends an output low level to associated equipment, the associated equipment controls a relay to act, the protected equipment is shut down, a corresponding fault alarm indicator lamp is lightened simultaneously, and overtemperature alarm protection is realized, and the infrared receiver is used for receiving the infrared signal to judge the temperature threshold value.
Description
Technical Field
The utility model belongs to the technical field of infrared detection and sensor, concretely relates to infrared temperature sensor.
Background
In nature, when the temperature of an object is higher than absolute zero, electromagnetic waves are continuously radiated to the periphery due to the existence of internal thermal motion of the object, wherein the electromagnetic waves comprise infrared rays with wave bands of 0.75-100 mu m, and the infrared temperature sensor is manufactured by utilizing the principle.
The infrared temperature sensor used at present is applied to a small number of types of underground coal mine models, has the problem of inaccurate detection at the present stage, and often has the problem of damage caused by improper operation due to the problem of underground environment.
Disclosure of Invention
To solve the problems set forth in the background art described above. The utility model provides an infrared temperature sensor has the characteristics that detect accuracy, not fragile.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an infrared temperature sensor, includes the shell, the shell includes the upper cover, the upper cover has the protective housing through screwed connection, the inside cavity that is provided with of protective housing, install the circuit board in the cavity, infrared receiver is installed to one side of circuit board, still install central controller on the circuit board, the display screen is installed to one side of central controller, the terminal is installed to the other end of central controller, the other end of terminal is provided with the wiring mouth.
Preferably, the binding post includes power connection VCC, power connection VCC is this ampere of power input wiring, and the power is provided by associated equipment.
Preferably, the binding post further comprises an external intrinsic safety direct current power supply negative end GND and a signal output contact.
Preferably, a toggle switch is further arranged on the circuit board.
Preferably, the wiring port is further provided with a pressing nut type line pressing module.
Preferably, the central controller is of the type F1 series STMANF103RCT 6.
Preferably, the interface of the central controller is respectively connected with a power chip, an MCU power supply, a ground wire isolation, a 485 communication circuit, a jumper cap, a relay output circuit, a USB interface, a functional capacitor, a temperature selection and an infrared probe; the power chip is power source, and is a contact pin, and the MCU power is kept apart the power inlet wire, and the ground wire is kept apart and is used for the inlet wire ground connection to keep apart, the maintenance of being convenient for, and the wire jumper cap is used for switching with 485 communication circuit and download serial ports, and the USB interface is the serial ports of download procedure, functional capacitor, anti-jamming, the temperature selection, the pin connects on MCU, when for how much temperature, jump at which grade temperature selection, infrared probe connects on U5.
Compared with the prior art, the beneficial effects of the utility model are that: when the sensor is in operation, the temperature of a measured object is monitored, and after the temperature exceeds a protection set value, a signal output end W outputs a low level to be sent to associated equipment, so that the associated equipment controls the action of a relay, the protected equipment is stopped, meanwhile, a corresponding fault alarm indicator lamp is lightened, overtemperature alarm protection is realized, and an infrared receiver is used for receiving an infrared signal to judge a temperature threshold value.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the upper cover structure of the present invention;
FIG. 3 is a circuit diagram of the CPU of the present invention;
fig. 4 is a circuit diagram of the power supply chip of the present invention;
FIG. 5 is a circuit diagram of the MCU power supply of the present invention;
fig. 6 is a circuit diagram of the ground line isolation of the present invention;
fig. 7 is a 485 communication circuit diagram of the present invention;
FIG. 8 is a circuit diagram of a jumper cap according to the present invention;
fig. 9 is a circuit diagram of the relay output circuit of the present invention;
fig. 10 is a circuit diagram of a USB interface according to the present invention;
FIG. 11 is a circuit diagram of a medium-function capacitor according to the present invention;
FIG. 12 is a circuit diagram of temperature selection in the present invention;
fig. 13 is a circuit diagram of the mid-infrared probe of the present invention;
in the figure: 1. a protective shell; 2. a wiring port; 3. an infrared receiver; 4. a circuit board; 5. a display screen; 6. A binding post; 7. a central controller; 8. a toggle switch; 9. and (7) covering.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-13, the present invention provides the following technical solutions: the utility model provides an infrared temperature sensor, includes the shell, the shell includes upper cover 9, upper cover 9 has protective housing 1 through screwed connection, the inside cavity that is provided with of protective housing 1, install circuit board 4 in the cavity, infrared receiver 3 is installed to one side of circuit board 4, still install central controller 7 on the circuit board 4, display screen 5 is installed to one side of central controller 7, terminal 6 is installed to central controller 7's the other end, the other end of terminal 6 is provided with wiring mouth 2.
Specifically, terminal 6 includes power connection VCC, power connection VCC is this ampere of power input wiring, and the power is provided by associated equipment.
Specifically, the binding post 6 further comprises an external intrinsic safety direct current power supply negative terminal GND and a signal output contact.
Specifically, the circuit board 4 is further provided with a toggle switch 8.
Specifically, the wiring port 2 is further provided with a pressing nut type line pressing module.
Specifically, the central controller is of the type F1 series STMANF103RCT 6.
Specifically, the interface of the central controller is respectively connected with a power supply chip, an MCU power supply, a ground wire isolation, a 485 communication circuit, a jumper cap, a relay output circuit, a USB interface, a functional capacitor, a temperature selection and an infrared probe; the power chip is power source, and is a contact pin, and the MCU power is kept apart the power inlet wire, and the ground wire is kept apart and is used for the inlet wire ground connection to keep apart, the maintenance of being convenient for, and the wire jumper cap is used for switching with 485 communication circuit and download serial ports, and the USB interface is the serial ports of download procedure, functional capacitor, anti-jamming, the temperature selection, the pin connects on MCU, when for how much temperature, jump at which grade temperature selection, infrared probe connects on U5.
The working principle and the using process of the invention are as follows: connecting the sensor to the associated equipment by a three-core flame-retardant rubber sleeve cable, checking that each connection is correct, pressing the connection position reliably to cover each shell cover, fixing the equipment and supplying power, starting the sensor after the associated equipment is powered on, pressing a position selection button on the shell after the sensor is externally connected with the associated equipment and powering on, wherein a temperature protection action value is displayed, pressing an increase button, setting a display flicker position of a nixie tube within a range of 0-9, pressing the position selection button after setting the position, performing next position display digital setting of the nixie tube, setting the current temperature protection action value at 25.0 ℃, then pressing the position selection button once again to restore the nixie tube display to the current temperature display state, measuring the current states of output contacts K1 and K2 by using a universal meter diode gear, pressing a temperature sensing head by hand, and measuring the state of the output contacts by using a universal meter diode gear, if the temperature of the sensor changes, the sensor works normally, the temperature protection action value of the sensor is restored to a set gear, and the temperature protection action value can be set according to the underground environment. The sensor can be put into a well to be matched with associated equipment for use after a ground temperature protection test is qualified, the associated equipment provides a working power supply and receives an output signal, the associated equipment is powered on, the sensor is put into operation, the GWH100 mining intrinsic safety type infrared temperature sensor senses the temperature of a measured point of a measured object through an infrared temperature probe, the temperature rise value of the measured object is reflected to a detection circuit, when the measured temperature of the measured object is higher than a preset value, the contact states of a sensor signal output end K1 and a sensor signal output end K2 are overturned and changed, an analog quantity signal can be output or the temperature value can be directly read through 485 communication, the sensor is matched with the associated equipment for use to realize overtemperature alarm protection, after the sensor breaks down, the power supply is firstly turned off, a new sensor is used for replacing, the sensor is taken down to the ground for inspection, and whether a temperature sensing head and a selection, if the damage needs to be updated in time, a ground temperature protection test needs to be carried out after updating, the infrared temperature probe of the sensor can be continuously put into use after checking all normal conditions, the surface of the infrared temperature probe of the sensor is strictly forbidden to accumulate coal dust, and the infrared temperature probe needs to be cleaned regularly so as to prevent the monitoring sensitivity from being reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An infrared temperature sensor, characterized in that: the solar cell module comprises an outer shell, the shell includes upper cover (9), upper cover (9) have protective housing (1) through screwed connection, the inside cavity that is provided with of protective housing (1), install circuit board (4) in the cavity, infrared receiver (3) are installed to one side of circuit board (4), still install central controller (7) on circuit board (4), display screen (5) are installed to one side of central controller (7), terminal (6) are installed to the other end of central controller (7), the other end of terminal (6) is provided with wiring mouth (2).
2. An infrared temperature sensor according to claim 1, characterized in that: binding post (6) are including power connection VCC, power connection VCC is this ampere of power input wiring, and the power is provided by associated equipment.
3. An infrared temperature sensor according to claim 1, characterized in that: the binding post (6) further comprises an external intrinsic safety direct current power supply negative end GND and a signal output contact.
4. An infrared temperature sensor according to claim 1, characterized in that: and the circuit board (4) is also provided with a toggle switch (8).
5. An infrared temperature sensor according to claim 1, characterized in that: the wiring port (2) is also provided with a pressing nut type line pressing module.
6. An infrared temperature sensor according to claim 1, characterized in that: the central controller is of type F1 series STMANF103RCT 6.
7. An infrared temperature sensor according to claim 1, characterized in that: the interface of the central controller is respectively connected with a power chip, an MCU power supply, a ground wire isolation, a 485 communication circuit, a jumper cap, a relay output circuit, a USB interface, a functional capacitor, a temperature selection device and an infrared probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020996135.9U CN212059118U (en) | 2020-06-03 | 2020-06-03 | Infrared temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020996135.9U CN212059118U (en) | 2020-06-03 | 2020-06-03 | Infrared temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212059118U true CN212059118U (en) | 2020-12-01 |
Family
ID=73513281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020996135.9U Active CN212059118U (en) | 2020-06-03 | 2020-06-03 | Infrared temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212059118U (en) |
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2020
- 2020-06-03 CN CN202020996135.9U patent/CN212059118U/en active Active
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