Temperature waiting terminal detection circuit for electricity selling terminal

Abstract

The utility model provides a temperature waiting terminal detection circuit for an electricity selling terminal, which comprises a power supply, a power supply circuit, a data conversion circuit, a communication circuit and a temperature detection circuit, the power supply is connected with the input end of the power supply circuit, and the output end of the power supply is connected with the input end of the temperature detection circuit. The output end of the temperature detection circuit is connected with the input end of the data conversion circuit, the output end of the data conversion circuit is connected with the input end of the communication circuit, and a temperature thermistor JVD1 is arranged in the temperature detection circuit. By using the circuit, the problem that potential safety hazards exist in an electricity selling management controller in the prior art can be effectively solved, by applying the circuit, the temperature thermistor JVD1 can conduct temperature monitoring in real time, temperature and voltage signals are continuously sent to the data conversion circuit, data are sent to a background system through the communication circuit, and the data are stored in the background system. And background remote real-time monitoring and early warning are realized, the use safety of equipment is improved, and the competitiveness of a product is improved.

Description

Technical Field

[0001] This utility model relates to the field of electricity sales terminal technology, specifically to a temperature detection circuit for a power sales terminal. Background Technology

[0002] With economic development and social progress, and the continuous development of power equipment, commercial venues such as shopping malls, office buildings, and hotels consume a large amount of electricity and have high requirements for the safety and stability of power equipment. The electricity sales management controller is a power control device that allows users to recharge for power supply and plays a vital role as the power supply terminal of power equipment.

[0003] In industrial environments such as factories and workshops, the high demand for electricity leads to heavy operating loads on electricity sales management controllers, which can easily cause overheating. This can result in equipment failure, fires, and other safety hazards due to excessively high temperatures. Existing electricity sales management controllers lack temperature detection modules, making it difficult to provide effective high-temperature warnings and ensuring safe operation, which hinders product competitiveness. Utility Model Content

[0004] This utility model provides a temperature detection circuit for a power sales terminal, which solves the safety hazard problem of existing power sales management controllers.

[0005] This utility model discloses a temperature detection circuit for a power sales terminal, comprising a power supply, a power supply circuit, a data conversion circuit, a communication circuit, and a temperature detection circuit. The power supply is connected to the input terminal of the power supply circuit, the output terminal of the power supply is connected to the input terminal of the temperature detection circuit, the output terminal of the temperature detection circuit is connected to the input terminal of the data conversion circuit, and the output terminal of the data conversion circuit is connected to the input terminal of the communication circuit. The temperature detection circuit includes a temperature thermistor JVD1, which transmits the detected analog temperature signal to the data conversion circuit. The data conversion circuit converts the received analog temperature signal into a digital temperature signal and transmits it to the communication circuit. The communication circuit then transmits the temperature signal to a remote device for temperature warning.

[0006] In a further improvement, the temperature detection circuit further includes a voltage divider resistor RVD5. One end of the temperature thermistor JVD1 is connected to the input terminal of the power supply circuit, and the other end of the temperature thermistor JVD1 is connected to one end of the voltage divider resistor RVD5. Both the other end of the temperature thermistor JVD1 and one end of the voltage divider resistor RVD5 are connected to the input terminal of the data conversion circuit, and the other end of the voltage divider resistor RVD5 is grounded.

[0007] This utility model is further improved, and the resistance of the voltage divider resistor RVD5 is 10KΩ.

[0008] This utility model is further improved. The data conversion circuit includes an analog-to-digital converter chip U1, which has 216 pins. Pin 55 of the analog-to-digital converter chip U1 is connected to both a voltage divider resistor RVD5 and a temperature thermistor JVD1. Pins 75 and 76 of the analog-to-digital converter chip U1 are connected to the input terminal of the communication circuit.

[0009] This utility model is further improved by providing a communication interface on the communication circuit. The communication interface has 30 contacts. The 9th and 13th contacts of the interface are connected to the 75th and 76th pins of the analog-to-digital converter chip U1. The 9th and 13th contacts of the interface can be connected to an external communication device to transmit temperature numerical signals.

[0010] This utility model is further improved, the power supply circuit includes a first power supply adjustment circuit and a second power supply adjustment circuit, the power supply is connected to the input terminal of the first power supply adjustment circuit, the output terminal of the first power supply adjustment circuit is connected to the input terminal of the second power supply adjustment circuit, and the output terminal of the second power supply adjustment circuit is connected to one end of the temperature thermistor JVD1.

[0011] This utility model is further improved. The first power supply regulation circuit includes a first buck-boost chip U351, an inductor L351 and a diode D352. The first buck-boost chip U351 has 8 pins. The power supply is connected to the 7th pin of the first buck-boost chip U351. The 1st pin of the first buck-boost chip U351 is connected to one end of the inductor L351. The other end of the inductor L351 is connected to the positive terminal of the diode D352. The negative terminal of the diode D352 is connected to the input terminal of the second power supply regulation circuit.

[0012] The present invention is further improved in that the second power supply regulation circuit includes a second buck-boost chip U32, which has three pins. The negative terminal of diode D352 is connected to the first pin of the second buck-boost chip U32, and the third pin of the second buck-boost chip U32 is connected to one end of the temperature thermistor JVD1.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a temperature terminal detection circuit for a power sales terminal. By using this circuit, the safety hazards of the power sales management controller in the prior art can be effectively solved. By applying this circuit, the temperature thermistor JVD1 can monitor the temperature in real time and continuously send temperature voltage signals to the data conversion circuit. The data is then transmitted to the back-end system through the communication circuit, realizing remote real-time monitoring and early warning in the back-end, improving the safety of equipment use, and helping to improve the competitiveness of the product. Attached Figure Description

[0014] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the circuit for detecting the temperature terminal of a power sales terminal.

[0016] Figure 2 This is a circuit diagram of a data conversion circuit.

[0017] Figure 3 This is the circuit diagram for the temperature detection circuit;

[0018] Figure 4 This is a circuit diagram for a communication circuit.

[0019] Figure 5 The circuit diagram for the power supply circuit;

[0020] Figure 6 This is the circuit diagram for the power supply circuit. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish different objects, not to describe a particular order.

[0022] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 1-6As shown, this utility model discloses a system comprising a power supply, a power supply circuit, a data conversion circuit, a communication circuit, and a temperature detection circuit. The power supply is connected to the input terminal of the power supply circuit, and its output terminal is connected to the input terminal of the temperature detection circuit. The output terminal of the temperature detection circuit is connected to the input terminal of the data conversion circuit, and the output terminal of the data conversion circuit is connected to the input terminal of the communication circuit. The temperature detection circuit includes a temperature thermistor JVD1, which transmits the detected analog temperature signal to the data conversion circuit. The data conversion circuit converts the received analog temperature signal into a digital temperature signal and transmits it to the communication circuit. The communication circuit then transmits the temperature signal to a remote device for temperature warning.

[0025] By setting up a temperature detection circuit, the safety of equipment use can be effectively improved. The temperature thermistor JVD1 monitors the temperature in real time and continuously sends temperature and voltage signals to the data conversion circuit. The data conversion circuit performs analog-to-digital conversion to obtain a digital signal, i.e., the temperature detection signal. Finally, the data is sent to the back-end system through the communication circuit. When the value exceeds the set threshold, a prompt or alarm is issued, which improves the user experience of the equipment, facilitates the management of back-end personnel, and helps to improve the competitiveness of the product.

[0026] The temperature detection circuit also includes a voltage divider resistor RVD5. One end of the temperature thermistor JVD1 is connected to the input terminal of the power supply circuit, and the other end of the temperature thermistor JVD1 is connected to one end of the voltage divider resistor RVD5. Both the other end of the temperature thermistor JVD1 and one end of the voltage divider resistor RVD5 are connected to the input terminal of the data conversion circuit, and the other end of the voltage divider resistor RVD5 is grounded.

[0027] By setting the voltage divider resistor RVD5, the temperature detection circuit can be divided.

[0028] The voltage divider resistor RVD5 has a resistance of 10KΩ. This resistance value effectively ensures the voltage division effect.

[0029] The data conversion circuit includes an analog-to-digital converter chip U1, which has 216 pins. Pin 55 of the analog-to-digital converter chip U1 is connected to both a voltage divider resistor RVD5 and a temperature thermistor JVD1. Pins 75 and 76 of the analog-to-digital converter chip U1 are connected to the input terminals of the communication circuit.

[0030] By setting up a data conversion circuit, the signal transmitted from the temperature thermistor JVD1 can be effectively converted and processed before being transmitted to the communication circuit.

[0031] The communication circuit is equipped with a communication interface with 30 contacts. The 9th and 13th contacts of the interface are connected to the 75th and 76th pins of the analog-to-digital converter chip U1. The 9th and 13th contacts of the interface can be connected to an external communication device to transmit temperature signals.

[0032] When in use, the communication peripheral device needs to be plugged into the communication interface. Signals are transmitted to the communication peripheral device through the 9th and 13th contacts of the connection interface. The communication peripheral device then remotely transmits the data to the backend system to achieve the effect of remote monitoring and early warning.

[0033] The power supply circuit includes a first power supply regulation circuit and a second power supply regulation circuit. The power supply is connected to the input terminal of the first power supply regulation circuit, the output terminal of the first power supply regulation circuit is connected to the input terminal of the second power supply regulation circuit, and the output terminal of the second power supply regulation circuit is connected to one end of the temperature thermistor JVD1.

[0034] The voltage can be stepped down by setting up the first power supply regulation circuit and the second power supply regulation circuit.

[0035] The first power supply regulation circuit includes a first buck-boost chip U351, an inductor L351, and a diode D352. The first buck-boost chip U351 has 8 pins. The power supply is connected to the 7th pin of the first buck-boost chip U351. The 1st pin of the first buck-boost chip U351 is connected to one end of the inductor L351. The other end of the inductor L351 is connected to the anode of the diode D352. The cathode of the diode D352 is connected to the input terminal of the second power supply regulation circuit.

[0036] By setting up the first power supply regulation circuit, the voltage can be effectively converted from 12V to 5V.

[0037] The second power supply regulation circuit includes a second buck-boost chip U32, which has three pins. The cathode of diode D352 is connected to the first pin of the second buck-boost chip U32, and the third pin of the second buck-boost chip U32 is connected to one end of the temperature thermistor JVD1.

[0038] By setting up a second power supply regulation circuit, the voltage can be effectively converted from 5V to 3.3V.

[0039] As can be seen from the above, the beneficial effects of this utility model are: by adopting its mechanism, it can effectively solve the problem of safety hazards in the existing electricity sales management controller. By applying this circuit, the temperature thermistor JVD1 can monitor the temperature in real time and continuously send temperature voltage signals to the data conversion circuit. The data is transmitted to the background system through the communication circuit, realizing remote real-time monitoring and early warning in the background, improving the safety of equipment use, and helping to improve the competitiveness of the product.

[0040] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A temperature detection circuit for a power sales terminal, characterized in that: The system includes a power supply, a power supply circuit, a data conversion circuit, a communication circuit, and a temperature detection circuit. The power supply is connected to the input terminal of the power supply circuit, and its output terminal is connected to the input terminal of the temperature detection circuit. The output terminal of the temperature detection circuit is connected to the input terminal of the data conversion circuit, and the output terminal of the data conversion circuit is connected to the input terminal of the communication circuit. The temperature detection circuit includes a temperature thermistor JVD1, which transmits the detected analog temperature signal to the data conversion circuit. The data conversion circuit converts the received analog temperature signal into a digital temperature signal and transmits it to the communication circuit. The communication circuit then transmits the numerical temperature signal to a remote device for temperature warning.

2. The temperature detection circuit for a power sales terminal according to claim 1, characterized in that: The temperature detection circuit also includes a voltage divider resistor RVD5. One end of the temperature thermistor JVD1 is connected to the input terminal of the power supply circuit, and the other end of the temperature thermistor JVD1 is connected to one end of the voltage divider resistor RVD5. Both the other end of the temperature thermistor JVD1 and one end of the voltage divider resistor RVD5 are connected to the input terminal of the data conversion circuit, and the other end of the voltage divider resistor RVD5 is grounded.

3. The temperature detection circuit for a power sales terminal according to claim 2, characterized in that: The voltage divider resistor RVD5 has a resistance of 10KΩ.

4. The standby temperature terminal detection circuit for a power sales terminal according to claim 2, characterized in that: The data conversion circuit includes an analog-to-digital converter chip U1, which has 216 pins. Pin 55 of the analog-to-digital converter chip U1 is connected to both the voltage divider resistor RVD5 and the temperature thermistor JVD1. Pins 75 and 76 of the analog-to-digital converter chip U1 are connected to the input terminal of the communication circuit.

5. The temperature detection circuit for a power sales terminal according to claim 4, characterized in that: The communication circuit is provided with a communication interface, which has 30 contacts. The 9th and 13th contacts of the connection interface are connected to the 75th and 76th pins of the analog-to-digital converter chip U1. The 9th and 13th contacts of the connection interface can be connected to an external communication device to transmit temperature numerical signals.

6. The standby temperature terminal detection circuit for a power sales terminal according to claim 5, characterized in that: The power supply circuit includes a first power supply regulation circuit and a second power supply regulation circuit. The power supply is connected to the input terminal of the first power supply regulation circuit, the output terminal of the first power supply regulation circuit is connected to the input terminal of the second power supply regulation circuit, and the output terminal of the second power supply regulation circuit is connected to one end of the temperature thermistor JVD1.

7. The standby temperature terminal detection circuit for a power sales terminal according to claim 6, characterized in that: The first power supply regulation circuit includes a first buck-boost chip U351, an inductor L351, and a diode D352. The first buck-boost chip U351 has 8 pins. The power supply is connected to the 7th pin of the first buck-boost chip U351. The 1st pin of the first buck-boost chip U351 is connected to one end of the inductor L351. The other end of the inductor L351 is connected to the anode of the diode D352. The cathode of the diode D352 is connected to the input terminal of the second power supply regulation circuit.

8. The standby temperature terminal detection circuit for a power sales terminal according to claim 7, characterized in that: The second power supply regulation circuit includes a second buck-boost chip U32, which has three pins. The negative terminal of the diode D352 is connected to the first pin of the second buck-boost chip U32, and the third pin of the second buck-boost chip U32 is connected to one end of the temperature thermistor JVD1.

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