CN216897788U

CN216897788U - Instant heating type safety electric heating water tap

Info

Publication number: CN216897788U
Application number: CN202220294615.XU
Authority: CN
Inventors: 张建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-07-05
Anticipated expiration: 2032-02-14

Abstract

The utility model provides an instant heating type safe electric heating water faucet, which comprises a water faucet body and a power supply control device, wherein a heater and a water valve state acquisition device are arranged in the water faucet body, the water valve state acquisition device acquires the opening and closing state of a water valve, the power supply control device is arranged outside the water faucet body, the power supply control device comprises a control unit and a relay, the input end of the relay is connected with commercial power, the output end of the relay is connected with the heater, the control unit converts the commercial power into low-voltage power, the water valve state acquisition device is connected with the control unit, the relay is controlled to work by adopting a low-voltage power supply by detecting the opening and closing state of the water valve, a high-voltage working circuit of the relay is connected with or disconnected with the heater, the problem that the contact switch arranged in the water faucet generates electric arc due to overlarge current and the phenomenon of contact bonding is solved, the adverse consequences such as overtemperature, electric leakage and the like of the faucet are avoided.

Description

Instant heating type safety electric heating water tap

Technical Field

The utility model relates to the technical field of electric heating faucets, in particular to an instant heating type safe electric heating faucet.

Background

The electric heating faucet is widely favored by consumers due to the characteristics that the electric heating faucet is opened and heated instantly without preheating and does not need water storage for heat preservation, water and electricity are saved, and the installation is simple and convenient.

Disclosure of Invention

In view of the above, there is a need to provide a safe instant heating type electric heating faucet which is safe in use.

An instant heating type safe electric heating faucet comprises a faucet body and a power supply control device, wherein a heater and a water valve state acquisition device are arranged in the faucet body, the water valve state acquisition device is arranged on a water valve of the faucet and used for acquiring the opening and closing state of the water valve, the power supply control device is arranged outside the faucet body and comprises a control unit and a relay, the input end of a high-voltage working circuit of the relay is electrically connected with a mains supply, the output end of the high-voltage working circuit of the relay is electrically connected with the heater, the input end of the control unit is electrically connected with the mains supply to convert the mains supply into a low-voltage power supply, the water valve state acquisition device is electrically connected with the control unit, the water valve state acquisition device generates an opening signal after acquiring the opening state of the water valve, and the control unit provides the low-voltage power supply for a low-voltage control circuit of the relay after detecting the opening signal, and controlling the relay to be closed, so that a high-voltage working circuit of the relay is conducted, and the commercial power is supplied to the heater to work.

Preferably, the number of the relays is two, the relays are respectively electrically connected with the zero line and the live line and simultaneously control the conduction or disconnection of the zero line and the live line and the heater.

Preferably, this internal heating chamber that is provided with of tap, the heater sets up in the heating chamber, still be provided with the temperature sensor who detects the temperature in the heating chamber, temperature sensor and the control unit electric connection, the control unit passes through temperature sensor and detects the temperature, and when the temperature was higher than the temperature value that the control unit set for, the high-pressure work circuit disconnection of the control unit control relay, when the temperature was less than the temperature value that the control unit set for, the control unit stops to start the relay.

According to the technical scheme, the instant heating type safe electric heating faucet comprises a faucet body and a power supply control device, wherein the power supply control device is arranged outside the faucet body, and a relay is controlled to work by adopting a low-voltage power supply through detecting the opening and closing state of a water valve, so that a high-voltage working circuit of the relay is connected with or disconnected from a heater, the problem that electric arcs are generated due to the fact that current of a contact switch arranged in the faucet is too large, the phenomenon of contact bonding is caused is solved, and the adverse consequences such as damage and the like caused by the fact that the temperature of the faucet is too high are avoided.

Drawings

Fig. 1 is a schematic structural diagram of the instant heating type safety electric heating faucet.

Fig. 2 is a schematic diagram of a connection structure of the power control device.

In the figure: the water faucet comprises a water faucet body 10, a heating cavity 11, a heater 12, a temperature sensor 13, a melting type overtemperature protector 14, a water valve 15, a water valve state acquisition device 16, a power supply control device 20, a control unit 21 and a relay 22.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1 and 2, an embodiment of the present invention provides an instant heating type safe electric heating faucet, including a faucet body 10 and a power control device 20, wherein a heater 12 and a water valve state acquisition device 16 are disposed in the faucet body 10, the water valve state acquisition device 16 is disposed on a water valve 15 of the faucet to acquire an open/close state of the water valve 15, the power control device 20 is disposed outside the faucet body 10, the power control device 20 includes a control unit 21 and a relay 22, an input end of a high-voltage operating circuit of the relay 22 is electrically connected to a mains supply, an output end of the high-voltage operating circuit is electrically connected to the heater 12, an input end of the control unit 21 is electrically connected to the mains supply to convert the mains supply into a low-voltage power supply, the water valve state acquisition device 15 is electrically connected to the control unit 21, after the water valve state acquisition device 15 acquires the open state of the water valve 15, when the control unit 21 detects the opening signal, it generates an opening signal to supply a low voltage power to the low voltage control circuit of the relay 22, and controls the relay 22 to close, so that the high voltage operating circuit of the relay 22 is turned on, and the commercial power is supplied to the heater 12 to operate.

Specifically, the water valve state collecting device 16 is a contact switch or a contact switch, and can be used in cooperation with a pressure switch on the water valve 15, the mains supply is connected to 110 v-220 v ac power by the power control device 20, and is electrically connected to the control unit 21 and the relay 22 at the same time, the relay 22 is a dc electromagnetic relay, a working circuit of the relay 22 can be divided into a low-voltage control circuit and a high-voltage working circuit, an input end of the high-voltage working circuit is electrically connected to the mains supply, and an output end of the high-voltage working circuit is electrically connected to the heater 12, the control unit 21 includes a voltage conversion module, an I/O module and a driving module, the driving module is an L298N driving module, a triode or an ULN2803 driving module, the voltage conversion module can convert the mains supply into a 12v dc power supply, after the I/O module detects an opening signal of the water valve 15, the relay 22 can be controlled to be closed through an L298N driving module, a triode or an ULN2803 driving module, so that a high-voltage working circuit of the relay 22 is conducted, and mains supply is supplied to the heater 12 for heating, after the I/O module detects a closing signal of the water valve 15, the I/O module cuts off a 12v direct-current power supply transmitted to the relay 22, so that the high-voltage working circuit of the relay 22 is disconnected, heating is stopped, the relay 22 is controlled to work by adopting a low-voltage power supply, so that the high-voltage working circuit of the relay 22 is conducted or disconnected with the heater 12, and the heater 12 is an electric heating pipe.

Referring to fig. 2, further, two relays 22 are provided, and are electrically connected to the zero line and the live line of the commercial power respectively, and simultaneously control the connection or disconnection between the zero line and the live line and the heater 12, so as to implement a double-break and double-open function.

With continuing reference to fig. 1 and 2, further, a heating cavity 11 is disposed in the faucet body 10, the heater 12 is disposed in the heating cavity 11, a temperature sensor 13 for detecting a water temperature is further disposed in the heating cavity 11, the temperature sensor 13 is electrically connected to an I/O module of the control unit 21, the control unit 21 detects the water temperature through the temperature sensor 13, and when the water temperature is higher than a set temperature value or lower than the set temperature value, the control unit 21 controls the high-voltage operating circuit of the relay 22 to be disconnected. The control unit 21 sets the temperature values to be 80 ℃ and 0 ℃, when the control unit 21 detects that the water temperature is more than or equal to 80 ℃, the high-voltage working circuit of the relay 22 is controlled to be disconnected so as to prevent the heating temperature of the water faucet from being overhigh and the service life of the water faucet from being shortened, and when the control unit 21 detects that the water temperature is less than or equal to 0 ℃, the high-voltage working circuit of the relay 22 is stopped to be started to be conducted and operated so as to prevent the water faucet from being heated under the condition that the interior of the water faucet is frozen in winter and the water faucet is burst.

The heating intracavity 11 of tap body 10 still is provided with melts type overtemperature prote ware 14, if temperature sensor 13 became invalid, after heater 12 overtemperature, melts type overtemperature prote ware 14 and fuses, stops heater 12 and continues to heat to prevent tap body overtemperature damage, further provide the safety guarantee for tap uses.

When the device is used specifically, the control unit 21 detects the water valve state acquisition device 16 and the temperature sensor 13 in sequence, when the I/O module of the control unit 21 detects a water valve 15 opening signal and a water temperature signal, the control unit 21 provides a low-voltage power supply for the relay 22 to control the relay 22 to be closed, a high-voltage working circuit of the relay 22 is conducted, and commercial power is provided for the heater 12 to work, if the I/O module of the control unit 21 does not detect the water valve 15 opening signal or the detected temperature value exceeds a set value, the control unit 21 controls the working circuit of the relay 22 to be disconnected, thereby solving the problems that an electric arc is generated due to overlarge current of a contact switch arranged in the water faucet, the contact bonding phenomenon occurs, the overtemperature damage of the water faucet is avoided, and the double-break double-open function is realized by adopting the two relays 22 at the same time, the zero line and the live line are simultaneously disconnected, and the use safety is further improved.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an instant heating type safety electric heating faucet which characterized in that: the water valve state acquisition device comprises a water tap body and a power supply control device, wherein a heater and a water valve state acquisition device are arranged in the water tap body, the water valve state acquisition device is arranged on a water valve of the water tap and is used for acquiring the opening and closing state of the water valve, the power supply control device is arranged outside the water tap body and comprises a control unit and a relay, the input end of a high-voltage working circuit of the relay is electrically connected with mains supply, the output end of the high-voltage working circuit of the relay is electrically connected with the heater, the input end of the control unit is electrically connected with the mains supply to convert the mains supply into low-voltage power supply, the water valve state acquisition device is electrically connected with the control unit, the water valve state acquisition device generates an opening signal after acquiring the opening state of the water valve, the control unit provides the low-voltage power supply for a low-voltage control circuit of the relay after detecting the opening signal, and controls the relay to be closed, the high-voltage working circuit of the relay is conducted, and the commercial power is supplied to the heater to work.

2. The tankless, safe electric water heating faucet of claim 1, further comprising: the two relays are respectively electrically connected with the zero line and the live line and simultaneously control the conduction or the disconnection of the zero line and the live line and the heater.

3. The tankless, safe electric water heating faucet of claim 1, further comprising: this internal heating chamber that is provided with of tap, the heater sets up in the heating chamber, still be provided with the temperature sensor who detects the temperature in the heating chamber, temperature sensor and the control unit electric connection, the control unit passes through temperature sensor and detects the temperature, and when the temperature was higher than the temperature value that the control unit set for, the high-pressure working circuit disconnection of the control unit control relay when the temperature was less than the temperature value that the control unit set for, the control unit stop start relay.