CN213091735U - Electronic electric energy meter with overtemperature and too fast temperature rise alarm functions - Google Patents
Electronic electric energy meter with overtemperature and too fast temperature rise alarm functions Download PDFInfo
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- CN213091735U CN213091735U CN202021948676.0U CN202021948676U CN213091735U CN 213091735 U CN213091735 U CN 213091735U CN 202021948676 U CN202021948676 U CN 202021948676U CN 213091735 U CN213091735 U CN 213091735U
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Abstract
The utility model relates to the field of electric meters, in particular to an electronic electric energy meter with overtemperature and too fast temperature rise alarm functions, which comprises a shell and a mainboard arranged inside the shell; the main board is provided with a wiring terminal, a relay, a single chip microcomputer, a timer, an environment temperature sensor and a wiring terminal temperature sensor, a probe of the environment temperature sensor is positioned in the cavity of the shell, and the probe of the wiring terminal temperature sensor is attached to the wiring terminal; the environment temperature sensor, the wiring terminal temperature sensor and the timer are all electrically connected with the single chip microcomputer, the single chip microcomputer is electrically connected with the alarm mechanism, the single chip microcomputer controls the opening and closing of the relay through the special relay control circuit, and the relay is connected with the wiring terminal. The running environment of the electric meter is comprehensively reflected in the form of simultaneously monitoring the internal environment temperature of the electric meter and monitoring the temperature of the wiring terminals at multiple points, and whether the electric meter has an abnormal condition of rapid temperature rise or not is reflected by monitoring the temperature rise in unit time, so that the electric meter and a circuit are protected in time.
Description
Technical Field
The utility model relates to an ammeter technical field especially relates to an electronic type electric energy meter with overtemperature and too fast intensification alarming function.
Background
Along with the integration degree of ammeter function is higher and higher, and circuit design is more and more complicated, the structure is also more and more compact, and the fault rate of ammeter also risees easily, and present ammeter cost is all higher, and the ammeter burns out not only to cause inconvenience for user's daily power consumption, still can bring unnecessary economic loss.
The conventional electric meter has an over-temperature protection function, and when the internal environment temperature of the electric meter is too high or the temperature of a specific position is too high (such as a wiring terminal), an alarm is given or power-off protection is performed. However, the temperature measurement form of the electric meter on the market is single, the judgment of the overheating condition of the electric meter is inaccurate through single-point temperature measurement, the function of monitoring rapid temperature rise is not provided, the alarm and over-temperature protection are not timely, and the protection effect on the electric meter and a circuit is very limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an electronic electric energy meter with overtemperature and too fast temperature rise alarm functions.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an electronic electric energy meter with overtemperature and over-fast temperature rise alarm functions comprises a shell and a main board arranged in the shell; the main board is provided with a wiring terminal, a relay, a single chip microcomputer, a timer, an ambient temperature sensor and a wiring terminal temperature sensor, a probe of the ambient temperature sensor is positioned in the cavity of the shell, and the probe of the wiring terminal temperature sensor is attached to the wiring terminal; the environment temperature sensor, the wiring terminal temperature sensor and the timer are all electrically connected with the single chip microcomputer, the single chip microcomputer is further electrically connected with the alarm mechanism, the single chip microcomputer is connected with the triode and then connected with the relay, and the relay is connected with the wiring terminal.
Preferably, the number of the wiring terminal temperature sensors is three, and probes of the three wiring terminal temperature sensors are respectively attached to two ends and the middle of the wiring terminal.
Preferably, the environment temperature sensor is a temperature sensor inside the single chip microcomputer, and the wiring terminal temperature sensor is an NTC thermistor temperature sensor.
Preferably, the type of the single chip microcomputer is FM33A 048.
Preferably, the timer is an independent timer in the single chip microcomputer.
Preferably, the alarm mechanism is one or a combination of a display screen, a photoelectric alarm and a buzzer.
The utility model has the advantages that:
1. the running environment of the electric meter is comprehensively reflected by the mode of simultaneously monitoring the internal environment temperature of the electric meter and monitoring the temperature of the wiring terminals at multiple points, so that the overheat condition of the electric meter can be timely and accurately judged and measures can be taken.
2. Whether the ammeter has an abnormal condition of rapid temperature rise or not is reflected by monitoring the temperature rise in unit time, so that the ammeter and a circuit can be protected in time, and the faults of a power supply system are reduced.
Drawings
Fig. 1 is an internal schematic view of an electronic electric energy meter with over-temperature and over-rapid temperature rise alarm functions according to the present invention;
fig. 2 is a schematic view of a main view structure of an electronic electric energy meter with over-temperature and over-rapid temperature rise alarm functions according to the present invention;
fig. 3 is a system diagram of an electronic electric energy meter with over-temperature and over-rapid temperature-rise alarm functions according to the present invention.
In the figure: the intelligent temperature control system comprises a shell 1, a mainboard 2, an environment temperature sensor 3, a connecting terminal temperature sensor 4a/4b/4c, a connecting terminal 5, a relay 6, a singlechip 7, a timer 8, a display screen 9, a photoelectric alarm 10 and a buzzer 11.
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.
Referring to fig. 1-3, an electronic electric energy meter with over-temperature and over-fast temperature-rise alarm function comprises a shell 1 and a main board 2 installed inside the shell 1;
the main board 2 is provided with a wiring terminal 5, a relay 6, a singlechip 7, a timer 8, an ambient temperature sensor 3 and a wiring terminal temperature sensor 4; a probe of the ambient temperature sensor 3 is positioned in the cavity of the shell 1 and used for detecting the ambient temperature in the cavity of the electric meter; the probe of the wiring terminal temperature sensor 4 is attached to the wiring terminal 5 and used for detecting the temperature of the wiring terminal 5;
in the embodiment, three wiring terminal temperature sensors 4a/4b/4c are mounted on the main board 2, probes of the three wiring terminal temperature sensors 4a/4b/4c are respectively attached to two ends and the middle of the wiring terminal 5 and used for detecting the temperatures of different positions of the wiring terminal 5, and the number of the wiring terminal temperature sensors 4 and the positions of the probes can be selected according to needs.
The environment temperature sensor 3, the wiring terminal temperature sensor 4, the timer 8 and the alarm mechanism are electrically connected with the single chip microcomputer 7, the single chip microcomputer 7 is connected with a relay 6 after being connected with a special chip of a relay controller, the single chip microcomputer controls the opening and closing of the relay 6 through a special relay control circuit, and the relay 6 is connected with the wiring terminal 5; the environment temperature sensor 3 is a temperature sensor inside the singlechip, and the wiring terminal temperature sensor 4 is an NTC thermistor temperature sensor; the type of the singlechip 7 is FM33A048, and the singlechip has a storage function; the timer 8 is an independent timer built in the singlechip.
In the working state of the electric meter, the environment temperature sensor 3 detects the environment temperature in the cavity of the electric meter in real time and transmits the environment temperature to the singlechip 7, the connecting terminal temperature sensor 4 detects the temperature of different positions on the connecting terminal 5 in real time and transmits the temperature to the singlechip 7, the environment temperature and the connecting terminal temperature are stored in the singlechip in a data form, when the environment temperature is greater than a set value or the temperature of any detection point of the connecting terminal 5 is greater than the set value, the singlechip 7 outputs high level corresponding to a pin, the relay 6 is closed, power-off protection is carried out, meanwhile, the singlechip 7 sends an instruction to the alarm mechanism, and the;
the single chip microcomputer 7 compares the real-time environment temperature with the real-time wiring terminal temperature and historical data, when the temperature increment in unit time exceeds a set value, the single chip microcomputer 7 outputs a high level through a corresponding pin, the relay 6 is closed, namely power-off protection is achieved, meanwhile, the single chip microcomputer 7 sends an instruction to the alarm mechanism, and the alarm mechanism sends an alarm.
In the embodiment, the alarm mechanism is the display screen 9, alarm information is displayed on the display screen 9 to complete alarm action, the photoelectric alarm 10 and the buzzer 11 can be selected as the alarm mechanism according to needs to perform sound and light alarm, or the display screen 9, the photoelectric alarm 10 and the buzzer 11 are combined randomly to achieve the purpose of combined alarm.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. An electronic electric energy meter with overtemperature and over-fast temperature rise alarming functions is characterized by comprising a shell (1) and a main board (2) arranged in the shell (1);
a wiring terminal (5), a relay (6), a single chip microcomputer (7), a timer (8), an ambient temperature sensor (3) and a wiring terminal temperature sensor (4) are arranged on the main board (2), a probe of the ambient temperature sensor (3) is positioned in a cavity of the shell (1), and a probe of the wiring terminal temperature sensor (4) is attached to the wiring terminal (5);
ambient temperature sensor (3), binding post temperature sensor (4), time-recorder (8) all with singlechip (7) electric connection, singlechip (7) still electric connection has alarm mechanism, reconnect behind the triode is connected in singlechip (7) relay (6), relay (6) are connected binding post (5).
2. The electronic electric energy meter with the over-temperature and over-rapid temperature rise alarm function according to claim 1, characterized in that the number of the terminal temperature sensors (4) is three, and probes of the three terminal temperature sensors (4) are respectively attached to two ends and the middle of the terminal (5).
3. The electronic electric energy meter with the over-temperature and over-rapid temperature rise alarm function according to claim 1, characterized in that the environment temperature sensor (3) is a single chip microcomputer internal sensor, and the connection terminal temperature sensor (4) is an NTC thermistor temperature sensor.
4. The electronic electric energy meter with the over-temperature and over-rapid temperature rise alarm function according to claim 1, characterized in that the type of the single chip microcomputer (7) is FM33A 048.
5. The electronic electric energy meter with the over-temperature and over-fast temperature rise alarm function according to claim 1, characterized in that the timer (8) is an independent timer in a single chip microcomputer.
6. The electronic electric energy meter with the over-temperature and over-rapid temperature rise alarm function according to claim 1, wherein the alarm mechanism is one or a combination of a display screen (9), a photoelectric alarm (10) and a buzzer (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021948676.0U CN213091735U (en) | 2020-09-09 | 2020-09-09 | Electronic electric energy meter with overtemperature and too fast temperature rise alarm functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021948676.0U CN213091735U (en) | 2020-09-09 | 2020-09-09 | Electronic electric energy meter with overtemperature and too fast temperature rise alarm functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213091735U true CN213091735U (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021948676.0U Active CN213091735U (en) | 2020-09-09 | 2020-09-09 | Electronic electric energy meter with overtemperature and too fast temperature rise alarm functions |
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| Country | Link |
|---|---|
| CN (1) | CN213091735U (en) |
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2020
- 2020-09-09 CN CN202021948676.0U patent/CN213091735U/en active Active
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