CN211088665U - Patch board with temperature alarm function - Google Patents

Abstract

The utility model belongs to the technical field of the sensor, a from wiring board of taking temperature warning is related to. The patch board comprises a box body, a national standard universal hole, a transformer, a single chip microcomputer chip, an indicator light, a loudspeaker and a temperature sensor. The universal holes are arranged in the box body, the power line is connected into the box body, the power line is connected with the universal holes in the box body through the buttons, and the connecting wires transmit voltage and current to the universal holes in the national standards, so that a multi-purpose effect is achieved. One end of the connecting wire converts 220V alternating current into 5V direct current through a transformer, after the 5V direct current passes through the current-limiting and voltage-dividing effects of a capacitor and a resistor of the direct current voltage stabilizing circuit, the voltage flows into the single chip microcomputer chip, and the single chip microcomputer chip is connected with the indicator lamp, the loudspeaker and the temperature sensor respectively. The utility model discloses can the measured temperature, make the user use more convenient, safety, the resident can also acquire the temperature in the wiring board through temperature-sensing to safety and efficient unification have been reached.

Description

Patch board with temperature alarm function

Technical Field

The utility model belongs to the technical field of the sensor, a from wiring board of taking temperature warning is related to.

Background

With the continuous enlargement of the scale of modern industrial construction, most patch boards on the market do not have the temperature alarm function, and great threat is caused to the safety of family property and personal life. Due to the fact that many families and companies lack corresponding temperature alarm patch boards, the factors that the patch boards are burnt out and exploded and the like are not found in time, irretrievable consequences are often caused. However, the patch board is small in size, simple in structure and simple in structure, and is often damaged or even exploded due to the connection of a plurality of high-power electrical appliances. In fact, if a plurality of high-power electrical appliances are connected as connecting devices of household circuits and electrical appliances, a series of problems such as circuit short circuit and the like can be caused, corrosion occurs or an oxidation layer exists to cause overlarge contact resistance, so that electric sparks are generated due to overheating and then the electric sparks are melted, and the melted scorching fusant ignites surrounding combustibles. The common patch board can only centralize a plurality of sockets and cannot detect the internal temperature in real time, so that a user has no knowledge about the inside of the patch board and has great unknown about the safety of the patch board. According to effective data display, the high temperature of the patch board easily triggers a fire, according to the condition, the temperature alarm function is added to the patch board, the internal temperature of the patch board can be detected and alarmed in real time, and property loss and casualties are reduced. The patch board with the temperature alarm has very important function for protecting the family.

SUMMERY OF THE UTILITY MODEL

The utility model aims at detecting the inside temperature of wiring board, in case the inside high temperature of wiring board or exceed the temperature value of settlement, the inside speaker of this equipment can trigger the suggestion immediately and warn the user that the wiring board high temperature should reduce the load or stop using.

In order to solve the technical problem, the technical scheme of the utility model is that:

a patch board with a temperature alarm function comprises a box body, a national standard universal hole, a transformer rectifier, a single chip microcomputer chip, an indicator light, a loudspeaker and a temperature sensor.

The universal holes are arranged in the box body, the power line is connected into the box body, the power line is connected with the universal holes in the box body through the buttons, and the connecting wires transmit voltage and current to the universal holes in the national standards, so that a multi-purpose effect is achieved.

220V alternating current is converted into 5V direct current through the rectifier transformer in connecting wire one end, and after the 5V direct current passes through the current-limiting partial pressure effect of direct current voltage stabilizing circuit's electric capacity and resistance, voltage flows into singlechip chip, and singlechip chip is connected respectively with pilot lamp, speaker and temperature-sensing ware, and singlechip chip, pilot lamp, speaker and temperature-sensing ware set up one side in the box body.

The patch board temperature rises, and temperature-sensing ware gives the singlechip chip with signal transmission, and the singlechip chip receives the signal, opens the speaker, makes near user learn the high temperature, and the pilot lamp lights out the scintillation simultaneously, reminds the user high temperature, and the patch board needs the outage or reduces the load and handles.

Furthermore, the temperature sensor adopts DS18B20 to detect the temperature, and has the characteristics of small volume, low hardware cost, strong anti-interference capability and high precision, wherein the internal memory comprises a high-speed temporary storage RAM and an electrically erasable RAM, the electrically erasable RAM comprises a temperature trigger TH and a T L, and a configuration register.

The single chip adopts an STM32F107 chip, and has the characteristics of high performance, low cost and low power consumption. The chip has small size and is suitable for small circuit boards.

The utility model discloses following beneficial effect has:

1. and the jack is flexibly, practically and conveniently combined by adopting the national standard.

(1) The old universal hole socket, namely the socket of which the jack can be compatible with two poles or three poles simultaneously, even the socket of plug used in non-daily use such as British standard, American standard and European standard. The socket has larger jacks, so that the contact area between the socket contact pieces and the plug of the electric appliance is too small, and the contact pieces are easy to overheat to cause fire accidents. Firstly, it is unsafe, secondly, the consumed power is high and the household appliances are easy to burn out.

(2) New-type national standard combination socket sets up the shutter, prevents to lead to the electric shock accident because finger or metal object mistake are touched because of the inside electrically conductive metal of socket and the electrically conductive foreign matter direct contact of outside, avoid children.

(3) The cross-sectional area of a power line conductor used by the socket with the length of less than 5m in the international standard is not less than 1 square millimeter, so that the safety and the reliability are improved.

2. Temperature alarm guarantees the safety of wiring board, user and user equipment.

(1) In present market, the wiring board that can only detect the outage exists, and our product can the temperature measurement, makes the user use more convenient, safety, and the resident can also obtain the interior temperature of wiring board through temperature-sensing to safety and efficient unification have been reached.

(2) After the alarm is given, the power supply of the patch board can be turned off by a user, so that the patch board and the electric equipment are protected, and the short circuit of the equipment is avoided.

3. Accurately identifying temperature and alarming for transmission; when the temperature of the plug board exceeds the threshold value, the alarm can give an alarm at the first time to remind a user in the field and prompt the user to power off in time, so that the occurrence rate of urban fire is greatly reduced.

Drawings

Fig. 1 is an internal structure diagram of the present invention.

Fig. 2 is an overall structure diagram of the system of the present invention.

Fig. 3 is a system diagram of a single chip microcomputer.

Fig. 4 is an operation flowchart.

Fig. 5 is a dc regulated voltage of 5V.

FIG. 6 is a circuit diagram of a crystal oscillator.

Fig. 7 is a buzzing warning circuit diagram.

FIG. 8 is a diagram of a single chip microcomputer control DS18B 20.

In the figure: 1, a button; 2, national standard universal holes; 3 connecting a lead; 4, a voltage transformation rectifier; 5, capacitance; 6, resistance; 7, a single chip microcomputer chip; 8 an indicator light; 9 a loudspeaker; 10 a temperature sensor; 11 power supply lines.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The utility model discloses an in power cord 11 inserts 220V alternating current entering wiring board, press button 1 wiring board and begin work, the general hole of national standard 2 circular telegrams send each general hole of national standard with voltage electric current through connecting wire 3 to reach multi-purpose effect. The voltage is converted into 5V direct current through the transformer rectifier 4 from original 220V alternating current, and after the current-limiting and voltage-dividing effects of the resistor 6 through the rectification and filtering of the capacitor 5 on the direct current voltage stabilizing circuit, the voltage flows into the single chip microcomputer 7, the single chip microcomputer STM32F107 chip starts to work, and meanwhile, the indicator light 8 and the temperature sensor 10 are driven to work. After the temperature-adjustable socket is used for a period of time, the temperature of the socket rises, the temperature exceeds the temperature (70 ℃) written in software in advance, the temperature sensor transmits a signal to the single chip microcomputer STM32F107 chip, the single chip microcomputer chip receives the signal and turns on the loudspeaker 9, so that a user nearby knows that the temperature is too high, and meanwhile, the indicator light is turned on and off to flash, so that the user is reminded of the fact that the temperature is too high, and the socket needs to be powered off or load reduction treatment.

As shown in fig. 5, the dc voltage stabilizing circuit converts 220v ac power into 5v dc power through the transformer rectifier to supply power to the single chip, and since the single chip cannot bear 220v high voltage, the transformer rectifier is used for voltage reduction.

The crystal oscillator circuit is shown in fig. 6. Two ends of the crystal oscillator of 11.0592MHz are grounded through two capacitors of 33 picofarads to form a clock circuit, and the clock circuit is input into the singlechip through a pin to provide a clock.

The early warning function part is realized by a buzzer, an alarm mode is generally set in the software part, and then the buzzer sounds when the temperature exceeds a threshold value, so that the alarm reminding function is realized, as shown in fig. 7.

The temperature data is directly measured by using the temperature sensor chip, and then the linkage effect is carried out with the loudspeaker through a single chip microcomputer program. The temperature sensor is considered to be used, the design of a single chip microcomputer circuit is combined, the DS18B20 temperature sensor is adopted, the measured temperature value is directly read, then conversion is carried out, and the design requirements are sequentially completed.

Claims (4)

1. A patch board with a temperature alarm function is characterized by comprising a box body, a national standard universal hole (2), a transformer rectifier (4), a single chip microcomputer chip (7), an indicator light (8), a loudspeaker (9) and a temperature sensor (10);

the national standard universal holes (2) are arranged in the box body, the power line (11) is connected into the box body, the power line (11) is connected with the national standard universal holes (2) in the box body through the button (1), and the connecting wire (3) sends voltage and current to each national standard universal hole (2), so that a multi-purpose effect is achieved;

one end of the connecting wire (3) converts 220V alternating current into 5V direct current through the transformer rectifier (4), after the 5V direct current passes through the current-limiting and voltage-dividing effects of the capacitor (5) and the resistor (6) of the direct current voltage stabilizing circuit, voltage flows into the single chip microcomputer chip (7), the single chip microcomputer chip is respectively connected with the indicator lamp (8), the loudspeaker (9) and the temperature sensor (10), and the single chip microcomputer chip (7), the indicator lamp (8), the loudspeaker (9) and the temperature sensor (10) are arranged on one side in the box body;

the plug board temperature rises, and the temperature-sensing ware gives singlechip chip (7) with signal transmission, and singlechip chip (7) receive the signal, open speaker (9), make near user learn the high temperature, and pilot lamp (8) carry out the bright scintillation of going out simultaneously.

2. The patch panel with temperature alarm of claim 1, wherein said temperature sensor is DS18B20, and its internal memory includes a high speed register RAM and an electrically erasable RAM.

3. The patch board with the temperature alarm function according to claim 1, wherein the single chip (7) adopts an STM32F107 chip.

4. The patch board with the temperature alarm function according to claim 2, wherein the single chip (7) adopts an STM32F107 chip.

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