Power plug wire with gas detection, alarm, leakage and circuit break functions
Technical Field
The utility model relates to a plug power cord technical field, concretely relates to power plug wire with gaseous detection, warning, electric leakage, function of opening circuit.
Background
A power plug is one of electrical wiring appliances, and is a connection appliance that is provided at an end of a power cable connected to an electrical appliance and is used by being inserted into a socket. Generally, electric power supplied to a home or a factory is connected to an electric outlet, and a plug of an electric appliance is inserted into the electric outlet to supply electric power to the electric appliance to operate the electric appliance.
The existing power plug and power line has single function and can only be used as a power supply for connection.
In addition, for products such as a gas stove and a gas water heater, natural gas or liquefied gas leakage must be prevented during use, the existing leakage prevention method is generally to additionally install a gas monitor, professional personnel are required to get on the door in the mode, and an indoor circuit is often required to be modified so that the gas monitor is connected with a power supply, so that the installation process is complicated and the installation cost is high.
Utility model
The utility model aims at overcoming the defects in the prior art, and providing a plug power line which has simple structure and convenient use, can effectively detect natural gas or liquefied gas, and can send out alarm and automatic power-off.
In order to achieve the above purpose, the utility model adopts the following scheme: the utility model provides a power plug wire with gaseous detection, warning, electric leakage, function of opening circuit which characterized in that: comprises that
A shell body, a plurality of first connecting rods and a plurality of second connecting rods,
the circuit board is arranged in the shell and is connected with the pins on the shell;
the gas sensor is arranged on the circuit board and used for detecting liquefied gas or natural gas or carbon monoxide;
the power-off module is arranged on the circuit board and used for controlling the on-off of an output power line on the circuit board;
the leakage protection module is arranged on the circuit board and used for cutting off a power supply when the circuit leaks electricity;
the buzzer is arranged on the circuit board and used for sending out a buzzing alarm;
the micro control chip is arranged on the circuit board, is respectively connected with the gas sensor, the buzzer and the power-off module, and is used for receiving the detection signal of the gas sensor and controlling the buzzer and the power-off module to work according to the detection signal;
the power line is connected with the circuit board and is used for being conducted with an external electrical appliance;
and the air inlet is arranged on the shell and used for communicating the inside and the outside of the shell.
As another improvement of the power plug wire with the functions of gas detection, alarm, electric leakage and circuit breaking, the pin is a three-pin plug.
As the utility model discloses another kind of improvement of power plug wire with gaseous detection, warning, electric leakage, the function of opening circuit be equipped with test switch on the circuit board, test switch is connected with little control chip be equipped with test button on casing and the corresponding position of test switch.
As the utility model discloses another kind of improvement of power plug wire with gaseous detection, warning, electric leakage, the function of opening circuit be equipped with the LED pilot lamp on the circuit board.
As the utility model discloses another kind of improvement of power plug wire with gaseous detection, warning, electric leakage, function of opening circuit, the casing includes casing and lower casing the internal mounting groove that is equipped with of inferior valve be equipped with the support column in the mounting groove, the circuit board is installed on the support column, the inlet port sets up go up on the casing.
As the utility model discloses another kind of improvement of power plug wire with gaseous detection, warning, electric leakage, function of opening circuit go up and be equipped with the joint groove in the casing lower extreme the casing is equipped with the joint lug with the corresponding position in joint groove down, joint lug joint is in the joint inslot.
As the utility model discloses another kind of improvement of power plug wire with gaseous detection, warning, electric leakage, the function of opening circuit be equipped with a plurality of strengthening ribs between support column outer wall and the shells inner wall.
As the utility model discloses another kind of improvement of power plug wire with gaseous detection, warning, electric leakage, function of opening circuit be equipped with reset switch on the circuit board, reset switch is connected with little the control chip be equipped with reset button on casing and the corresponding position of reset switch.
To sum up, the utility model discloses for its beneficial effect of prior art is: the utility model discloses simple structure, convenient to use can effectively detect natural gas or liquefied gas to send out police dispatch newspaper and auto-power-off, in addition, whether there is the electric leakage in the circuit that earth leakage protection module can the automated inspection plug cord, and auto-power-off under the condition of electric leakage, improved the security performance greatly.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a second perspective view of the present invention.
Fig. 3 is a schematic view of the internal structure of the present invention.
Fig. 4 is a schematic structural diagram of the upper housing of the present invention.
Fig. 5 is a schematic diagram of the circuit board of the present invention.
Detailed description of the preferred embodiments
The above and further features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1-5, a power plug wire with gas detection, alarm, leakage and open circuit functions is characterized in that: comprises that
The number of the housings 1 is such that,
the circuit board 2 is arranged in the shell 1 and is connected with the pins 3 on the shell 1;
a gas sensor 4 disposed on the circuit board 2 for detecting liquefied gas or natural gas or carbon monoxide;
the power-off module is arranged on the circuit board 2 and used for controlling the on-off of an output power line on the circuit board;
the earth leakage protection module is arranged on the circuit board 2 and used for cutting off the power supply when the circuit leaks electricity;
a buzzer 5 arranged on the circuit board 2 for giving a buzzer alarm;
the micro control chip 6 is arranged on the circuit board 2, is respectively connected with the gas sensor 4, the buzzer 5 and the power-off module, and is used for receiving the detection signal of the gas sensor 4 and controlling the buzzer 5 and the power-off module to work according to the detection signal;
the power line is connected with the circuit board 2 and is used for being conducted with an external electrical appliance;
and the air inlet 7 is arranged on the shell 1 and is used for communicating the inside and the outside of the shell 1.
The utility model discloses during the use, be connected the power cord with outside electrical apparatus, wherein outside electrical apparatus can be for gas-cooker or gas heater, then will participate in 3 and insert the socket, at this moment, the commercial power is through 1 entering circuit board 2 of plug power cord, through 2 commutations of circuit board, step-down, produce 5V direct current voltage, give little control chip 6, the power supply of gas sensor 4, little control chip 6 discerns, handles, the different sound production modes of judging back through bee calling organ 5 to the signal that gas sensor 4 detected show. The sounding mode of the buzzer is as follows: slow sounding = mild alarm, fast sounding = moderate alarm, long sounding = severe alarm. Meanwhile, the micro control chip 6 controls the power-off module to power off the gas stove or the gas water heater.
In addition, the leakage protection module can automatically detect whether the circuit in the plug cord has leakage or not, and automatically cuts off the power supply under the condition of leakage, so that the safety performance is greatly improved.
The utility model discloses be equipped with test switch 30 on circuit board 2, test switch 30 is connected with little control chip 6 be equipped with test button 40 on casing 1 and the corresponding position of test switch 30. An LED indicator 70 is provided on the circuit board 2. When the pin 3 is inserted into the socket and powered on, the LED indicator lamp is lightened.
The utility model discloses be equipped with reset switch 80 on circuit board 2, reset switch 80 is connected with little control chip 6 be equipped with reset button 90 on casing 1 and the corresponding position of reset switch 80.
Casing 1 includes casing 11 and lower casing 12 be equipped with mounting groove 13 in the casing 12 down be equipped with support column 14 in the mounting groove 13, circuit board 2 installs on the support column 14, inlet port 7 sets up on the casing 11. Be equipped with joint groove 18 in the upper housing 11 lower extreme casing 12 is equipped with joint lug 19 with the corresponding position in joint groove 18 down, joint lug 19 joint is in the joint groove 18. A plurality of reinforcing ribs 50 are arranged between the outer wall of the supporting column 14 and the inner wall of the shell 1. The utility model discloses when well upper housing 11 assembles with lower housing 12, through being in the 19 joints of joint lug the joint inslot 18 is then through the fix with screw. The connection is convenient and firm.
The utility model discloses in the shape of circuit board 2 and the shape phase-match of mounting groove 13, circuit board 2 is arranged in on the support column 14 to fix through the screw that sets up on support column 14, receive the restriction of mounting groove 13 and screw in the use, make circuit board 2 can not rock, thereby avoid circuit board 2 impaired.
The utility model discloses in be equipped with anti-skidding groove 17 on the 1 left and right sides of casing respectively. The friction force between the hand and the shell 1 can be increased through the anti-skid groove 17, so that the process of plugging and unplugging the plug power line is more convenient.
The circuit layout of the circuit board 2 is shown in fig. 5. The gas sensor is a product sold in the market, can be purchased from Shenzhen Shenzhou electronic technology Limited company, and has the model number of: SGA-100. The micro-control chip is a commercially available product, and can be a model WT2003H micro-control chip produced by Shenzhen Chuanzhiyuyin electronics Limited company or a model NV040D micro-control chip produced by Guangzhou nine-core electronics technology Limited company. The leakage protection module is a commercially available product and can be purchased from Xinmacroki vacuum appliances, inc. in Zhejiang.
The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.