CN211903321U - Low-voltage automatic compensation power electric water heater - Google Patents
Low-voltage automatic compensation power electric water heater Download PDFInfo
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- CN211903321U CN211903321U CN202020485591.7U CN202020485591U CN211903321U CN 211903321 U CN211903321 U CN 211903321U CN 202020485591 U CN202020485591 U CN 202020485591U CN 211903321 U CN211903321 U CN 211903321U
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Abstract
The utility model relates to an electric water heater, in particular to a low-voltage automatic compensation power electric water heater, which is provided with an inlet water temperature sensor outputting a first temperature signal, a flow sensor outputting a flow pulse signal, an outlet water temperature sensor outputting a second temperature signal, a control mainboard calculating the heating power of a heating element required for heating to a set temperature according to the signals and the set heating temperature, and a silicon controlled control panel adjusting the heating power of the heating element according to the signals of the control mainboard; through setting up in the voltage detection module that the control mainboard electricity is connected, when voltage detection module detects supply voltage fluctuation and surpasss the preset range promptly, voltage detection module exports the signal to the control mainboard, and the control mainboard continues to control silicon controlled rectifier control panel reinforcing heat-generating body output according to this signal, and this kind of structure has solved electric water heater and has gone out the problem that the temperature can not reach the settlement temperature in low-voltage environment to and the poor problem of user experience that leads to it, has improved user experience.
Description
Technical Field
The utility model relates to an electric water heater especially relates to a low-voltage automatic compensation power electric water heater.
Background
In the current intelligent constant temperature electric water heater product, tap water enters a heating body through a water inlet connector and a water inlet electricity-proof wall of the electric water heater to be heated, and then hot water comes out from a water outlet connector through a water outlet electricity-proof wall.
At the rated voltage of 220V or 380V, the output power of the electric water heater is the rated power P. The rated power P of the electric water heater is the rated power of the heating element. However, the working voltage of the electric water heater is low due to low environmental voltage or large line loss, which is far lower than the rated voltage of 220V or 380V, according to the formula: p is U2and/R, P is the rated power of the electric water heater, U is the rated voltage of the electric water heater, R is the resistance of a heating element of the electric water heater, the resistance value R of a normal heating element is unchanged, namely the maximum output power of the electric water heater is far lower than the rated power P, the maximum output power of the heating element is lower than normal, hot water supply cannot be met, the outlet water temperature cannot reach the temperature set by a user or the outlet water quantity is less, and the bathing effect is poor.
Therefore, the traditional electric water heater is easy to cause the problem that the water temperature is suddenly cooled and suddenly heated due to unstable voltage.
In addition, the instability of water pressure can cause the problem of poor bathing effect caused by sudden cold and sudden heat of water temperature.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing a have that environmental voltage strengthens heat-generating body power characteristics when being less than rated voltage automatically to and can adjust the low-voltage automatic compensation power electric water heater of water flow function.
A low voltage auto-compensating power electric water heater comprising: a water inlet pipe; the inlet water temperature sensor is arranged on the inlet pipe; the flow sensor is arranged on the water inlet pipe; the water outlet pipe is communicated with the water inlet pipe; the water outlet temperature sensor is arranged on the water outlet pipe; a heating element for heating the water outlet of the water inlet pipe; the low-voltage automatic compensation power electric water heater further comprises: the silicon controlled rectifier control panel is used for adjusting the output power of the heating element, and the output end of the silicon controlled rectifier control panel is electrically connected with the heating element; the initial conduction angle of the silicon controlled control board is 52.5 degrees to 67.5 degrees; the water inlet temperature sensor, the flow sensor and the water outlet temperature sensor are respectively and electrically connected with the input end of the control mainboard, and the output end of the control mainboard is electrically connected with the input end of the silicon controlled control panel; the voltage detection module is used for detecting whether the fluctuation of the power supply voltage exceeds a preset range or not, and the output end of the voltage detection module is electrically connected with the input end of the control mainboard;
the low-voltage automatic compensation power electric water heater further comprises: accurate intelligent water flow adjusting device sets up on this inlet tube, and this accurate intelligent water flow adjusting device has: the stepping motor is electrically connected with the control main board and is provided with a power output shaft; the driving gear is arranged on the power output shaft; the water regulating valve is arranged on the water inlet pipe and is provided with a valve core; and the sector gear is meshed with the driving gear and is linked with the valve core.
The water inlet temperature sensor arranged on the water inlet pipe outputs a first temperature signal, the flow sensor arranged on the water inlet pipe outputs a flow pulse signal, the water outlet temperature sensor arranged on the water outlet pipe outputs a second temperature signal, the control mainboard calculates the heating power of the heating body required for heating to a set temperature according to the first temperature signal, the flow pulse signal, the second temperature signal and a set heating temperature, the control mainboard is electrically connected with the controlled silicon control board, the controlled silicon control board adjusts the heating power of the heating body according to the signal of the control mainboard, and the control mainboard controls the controlled silicon so as to realize the timely electrifying work of the heating body; through the voltage detection module electrically connected with the control mainboard, under the condition that the working voltage of the electric water heater is too low, so that the water outlet temperature does not reach the set temperature, namely when the voltage detection module detects that the fluctuation of the power supply voltage exceeds the preset range, the voltage detection module outputs a signal to the control mainboard, the control mainboard continuously controls the silicon controlled control panel to improve the effective input voltage of the heating element according to the signal, the output power of the heating element is automatically enhanced, the initial conduction angle of the silicon controlled control panel is 52.5-67.5 degrees, the conduction rate of the silicon controlled on the silicon controlled control panel corresponding to the conduction angle of 52.5 degrees is 62.50%, the conduction rate of the silicon controlled on the silicon controlled control panel corresponding to the conduction angle of 67.5 degrees is 70.83%, the conduction angle of 52.5-67.5 degrees replaces the conduction angle of 0 degrees, namely replaces 100% of the conduction rate, the range of the heating element capable of improving the, the initial conduction rate of the silicon controlled control board is 62.50-70.83%, the conduction rate of the silicon controlled control board is the same as the initial conduction rate in normal use, when the environmental voltage is lower than the rated voltage, the conduction rate is improved by controlling the main board to change the conduction angle, so that the rated power of the electric water heater product, namely the output power of a heating element corresponding to the initial conduction rate gradually reaches the rated power of the heating element, wherein the difference value between the initial conduction rate and the 100% conduction rate is used as the power supplement of the heating element in low voltage, the power of the heating element is not increased when the conduction rate reaches 100%, so that the water temperature lower than the set temperature in low voltage environment is increased to the set temperature, wherein the low voltage means that the environmental voltage is lower than 220V and the difference value of the environmental voltage and the temperature exceed the preset range of the voltage detection module, such as 180V and 190V, and the structure solves the problem that, the problem of poor user experience when the water temperature does not reach the set temperature is solved, and the user experience is improved;
through setting up accurate intelligent water flow adjusting device on this inlet tube, accurate intelligent water flow adjusting device's step motor is connected with the control mainboard electricity, this step motor passes through gear engagement and is connected with the case of adjusting the water valve, during the use, the temperature of intaking and going out water through temperature sensor real-time detection, simultaneously give the control mainboard with the signal, carry out the analysis back to data through the control mainboard, step motor on the accurate intelligent water flow adjusting device of real-time control adjusts the case of adjusting the water valve, thereby the realization is adjusted water flow, step motor pivoted angle is controlled through the signal that the control mainboard sent, pivoted angle accuracy reaches 0.1, prior art's control angle can only reach 1, the accuracy has improved 10 times. Thereby achieving constant water outlet temperature; during the use, can carry out voltage detection module earlier and carry out work, after the conduction rate that improves silicon controlled rectifier control panel through voltage detection module, when leaving water temperature still is less than the settlement temperature, open accurate intelligent water flow adjusting device, reduce water flow in order to reach and set for stable temperature, make leaving water temperature for setting for the temperature, improve user experience and feel.
Further preferably, the rated power of the heating element is 7500W to 12000W.
By improving the rated power of the heating element to 7500W-12000W, the rated power of the low-voltage automatic compensation power electric water heater is larger than that of the traditional product with the rated power lower than 7500W, the heating range of the heating element is increased, and preparation is made for the voltage detection module to improve the heating power of the heating element;
the working process of specifically improving the heating power of the heating body is as follows: if the rated power of the heating element is 12000W, the conduction angle of the controlled silicon control panel is set to 52.5 degrees, the conduction angle of 52.5 degrees corresponds to the initial conduction rate of 62.50 percent, because the control mainboard does not adjust the controlled silicon control panel to improve the power when in normal work, the conduction angle of the controlled silicon control panel is kept unchanged, the rated power of the electric water heater product is fixed to be 62.50 percent of 12000W, namely 7500W, namely the output power of the heating element corresponding to the initial conduction rate is 7500W, when in low voltage, a signal is output to the control mainboard through the voltage detection module, the control mainboard controls the controlled silicon control panel to improve the power of the heating element, so that the output power of the heating element 7500W is gradually improved to the rated power of 12000W, thereby realizing the effect of improving the water temperature, wherein, the process of adjusting the conduction angle to be 0 degree by 52.5 degrees, namely the process of adjusting the conduction rate to be 100 percent by 62.50 percent, namely the process of adjusting the output power of the, the process is stepless regulation. Wherein, in the process of changing the conduction angle from 180 degrees to 0 degrees, the conduction rate is improved from 0 percent to 100 percent, and when the conduction angle is 90 degrees, the conduction rate is 50 percent. In addition, when the conduction angle of 67.5 degrees corresponds to 12000W of the rated power of the heating element, the initial conduction rate is 70.83%, the output power of the heating element corresponding to 8500W, the process of adjusting the conduction angle from 67.5 degrees to 0 degrees, namely the process of adjusting the conduction rate from 70.83% to 100%, namely the process of reaching 12000W of the rated power of the heating element from 8500W of the output power of the heating element, and the difference between 12000W and 8500W is used as the power compensation of the heating element in the low-voltage operation condition.
Further preferably, the control main board is a single chip microcomputer.
The singlechip can be used as a control mainboard of the electric water heater, and can also output PWM control signals to control the output of the silicon controlled rectifier control panel through PWM.
Further preferably, the low-voltage automatic compensation power electric water heater further comprises:
and the relay is arranged in the power supply loop of the heating body and is electrically connected with the control mainboard.
The arranged relay can be used for connecting or disconnecting the heating body and the power supply loop of the heating body after receiving the signal so as to realize the control requirement. For example, the relay can be a live wire on-off relay, and the control main board controls the relay to be communicated with the live wire after receiving the signal of the flow sensor.
Further preferably, the low-voltage automatic compensation power electric water heater further comprises:
a heating chamber in which the heating body is disposed;
the temperature limiter, this temperature limiter and control mainboard electricity are connected, and this temperature limiter has:
the temperature sensing probe is arranged in the heating cavity or is connected with the outer surface of the heating cavity.
Through setting up the heating chamber, set up the heat-generating body in the heating chamber to the temperature limiter setting that will be connected with the control mainboard of electricity is in this heating chamber, and wherein, the stopper has temperature sensing probe, and this temperature sensing probe setting is in this heating chamber or with the surface in this heating chamber in order to detect the temperature.
Further preferably, the low-voltage automatic compensation power electric water heater further comprises:
and the display panel is electrically connected with the control main board.
The display panel is used for showing the state, makes the temperature of constant temperature water heater can show through the control mainboard preset program, on display panel to provide the reference for the user.
Further preferably, the low-voltage automatic compensation power electric water heater further comprises:
the water inlet electricity-proof wall is fixedly connected with the water inlet pipe.
The water inlet electricity-proof wall is fixedly connected with the water inlet pipe and prevents electricity leakage.
Further preferably, the low-voltage automatic compensation power electric water heater further comprises:
and the water outlet electricity-proof wall is fixedly connected with the water outlet pipe.
The water outlet electricity-proof wall is fixedly connected with the water outlet pipe and prevents electricity leakage.
Further preferably, the low-voltage automatic compensation power electric water heater further comprises:
the water inlet joint is connected with the water inlet pipe.
The water inlet joint is connected with a water inlet pipe in the low-voltage automatic compensation power electric water heater, and the outside can be connected with the water inlet joint to be communicated with the water inlet pipe.
Further preferably, the low-voltage automatic compensation power electric water heater further comprises:
and the water outlet connector is connected with the water outlet pipe.
The water outlet joint is connected with a water outlet pipe in the low-voltage automatic compensation power electric water heater, and the outside can be connected with the water outlet joint to be communicated with the water outlet pipe.
Compared with the prior art, the utility model discloses a low-voltage automatic compensation power electric water heater, the temperature sensor of intaking that sets up at the inlet tube outputs first temperature signal, the flow sensor who sets up at the inlet tube outputs flow pulse signal, the temperature sensor of going out that sets up at the outlet tube outputs second temperature signal, the control mainboard calculates the heating power of the required heat-generating body of heating to the settlement temperature according to first temperature signal, flow pulse signal, second temperature signal and the heating temperature of settlement, the control mainboard is connected with the silicon controlled rectifier control panel electricity, the heating power of heat-generating body is adjusted according to the signal of control mainboard to the silicon controlled rectifier control panel, thereby the control mainboard control silicon controlled rectifier realizes the heat-generating body in good time circular; through the voltage detection module electrically connected with the control mainboard, under the condition that the working voltage of the electric water heater is too low, so that the water outlet temperature does not reach the set temperature, namely when the voltage detection module detects that the fluctuation of the power supply voltage exceeds the preset range, the voltage detection module outputs a signal to the control mainboard, the control mainboard continuously controls the silicon controlled control panel to improve the effective input voltage of the heating element according to the signal, the output power of the heating element is automatically enhanced, the initial conduction angle of the silicon controlled control panel is 52.5-67.5 degrees, the conduction rate of the silicon controlled on the silicon controlled control panel corresponding to the conduction angle of 52.5 degrees is 62.50%, the conduction rate of the silicon controlled on the silicon controlled control panel corresponding to the conduction angle of 67.5 degrees is 70.83%, the conduction angle of 52.5-67.5 degrees replaces the conduction angle of 0 degrees, namely replaces 100% of the conduction rate, the range of the heating element capable of improving the, the initial conduction rate of the silicon controlled control board is 62.50-70.83%, the conduction rate of the silicon controlled control board is the same as the initial conduction rate when in normal use, the conduction rate is improved by controlling the main board to change the conduction angle when in low voltage, the rated power of the electric water heater product, namely the output power of the heating element corresponding to the initial conduction rate gradually reaches the rated power of the heating element, wherein, the difference value between the initial conduction rate and the 100% conduction rate is used as the power supplement of the heating element when in low voltage, the power of the heating element is not increased when the conduction rate reaches 100%, the rated power of the electric water heater product, namely the output power of the heating element corresponding to the initial conduction rate gradually reaches the rated power of the heating element, thereby realizing that the water temperature lower than the set temperature in the low voltage environment is increased to the set temperature, and the structure solves the problem that the water, the problem of poor user experience when the water temperature does not reach the set temperature is solved, and the user experience is improved;
through setting up accurate intelligent water flow adjusting device on this inlet tube, accurate intelligent water flow adjusting device's step motor is connected with the control mainboard electricity, this step motor passes through gear engagement and is connected with the case of adjusting the water valve, during the use, the temperature of intaking and going out water through temperature sensor real-time detection, simultaneously give the control mainboard with the signal, carry out the analysis back to data through the control mainboard, step motor on the accurate intelligent water flow adjusting device of real-time control adjusts the case of adjusting the water valve, thereby the realization is adjusted water flow, step motor pivoted angle is controlled through the signal that the control mainboard sent, pivoted angle accuracy reaches 0.1, prior art's control angle can only reach 1, the accuracy has improved 10 times. Thereby achieving constant water outlet temperature; during the use, can carry out voltage detection module earlier and carry out work, after the conduction rate that improves silicon controlled rectifier control panel through voltage detection module, when leaving water temperature still is less than the settlement temperature, open accurate intelligent water flow adjusting device, reduce water flow in order to reach and set for stable temperature, make leaving water temperature for setting for the temperature, improve user experience and feel. .
The utility model discloses a low-voltage automatic compensation power electric water heater has the characteristics of secondary regulation release power.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a low-voltage automatic compensation power electric water heater of the present invention;
fig. 2 is a schematic view of the connection relationship between the precise intelligent water flow regulating device and the water inlet pipe.
Detailed Description
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like, referred to or may be referred to in this specification, are defined relative to their configuration, and are relative concepts. Therefore, it may be changed according to different positions and different use states. Therefore, these and other directional terms should not be construed as limiting terms.
The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a low-voltage automatic compensation power electric water heater according to the present invention.
The utility model discloses a low-voltage automatic compensation power electric water heater, include:
a water inlet pipe 1;
the water inlet temperature sensor 2 is arranged on the water inlet pipe 1 and used for detecting the water inlet temperature and outputting a first temperature signal;
the flow sensor is arranged on the water inlet pipe 1 and used for detecting the water inlet flow and outputting a flow pulse signal;
a water outlet pipe 3 communicated with the water inlet pipe 1;
the water outlet temperature sensor 4 is arranged on the water outlet pipe 3 and used for detecting the temperature of water and outputting a second temperature signal; the outlet water temperature sensor 4 can also feed back the monitored temperature of the water to the control main board 6 and display the temperature on the display board.
And the heating body is used for heating the water source output by the water inlet pipe 1, and the rated power of the heating body can be 7500W to 12000W. By improving the rated power of the heating element to 7500W-12000W, the rated power of the low-voltage automatic compensation power electric water heater is larger than that of the traditional electric water heater with the rated power lower than 7500W, the heating range of the heating element is enlarged, and preparation is made for the voltage detection module 7 to improve the heating power of the heating element. Wherein, the rated power of the heating element can be increased by reducing the resistance, and the calculation formula is P ═ U2and/R, P is rated power, U is rated voltage, and R is the resistance of the heating element. The rated voltage may be 220V or 380V.
The initial conduction angle of the silicon controlled control panel 5 is 52.5 degrees to 67.5 degrees, and the working process of specifically improving the heating power of the heating body is as follows: if the rated power of the heating element is 12000W, the conduction angle of the controlled silicon control board 5 is set to 52.5 degrees, the conduction angle of 52.5 degrees corresponds to the initial conduction rate of 62.50 percent, because the control mainboard 6 does not adjust the controlled silicon control board 5 to increase the power when the normal work is carried out, for example, under the working condition of the rated voltage of 220V or the rated voltage of 380V, the conduction angle of the controlled silicon control board 6 keeps unchanged, the rated power of the electric water heater product is fixed to be 62.50 percent of 12000W, namely 7500W, namely the output power of the heating element corresponding to the initial conduction rate is 7500W, when the voltage is low, the voltage detection module 7 outputs a signal to the control mainboard 6, the control mainboard 6 controls the controlled silicon control board 5 to increase the power of the heating element, so that the output power of the heating element 7500W is gradually increased to the rated power of 12000W, thereby realizing the effect of increasing the water temperature, wherein, the conduction angle is, namely, the process of adjusting the conduction rate to be 62.50% to 100%, namely the process of reaching the rated power of the heating element to be 12000W from 7500W, and the process is stepless regulation. Wherein, in the process of changing the conduction angle from 180 degrees to 0 degrees, the conduction rate is improved from 0 percent to 100 percent, and when the conduction angle is 90 degrees, the conduction rate is 50 percent. In addition, when the conduction angle of 67.5 degrees corresponds to 12000W of the rated power of the heating element, the initial conduction rate is 70.83 percent, the output power of the heating element corresponding to 8500W, the process of adjusting the conduction angle from 67.5 degrees to 0 degrees, namely the process of adjusting the conduction rate from 70.83 percent to 100 percent, namely the process of reaching 12000W of the rated power of the heating element from 8500W of the output power of the heating element, and the difference value between 12000W and 8500W is used as the power compensation of the heating element under the low-voltage working condition, wherein the low-voltage means that the environmental voltage is lower than 220V and the difference value between the two exceeds the preset range of the voltage detection module, such as 180V and 190V.
A heating chamber 9 in which the heating body is disposed; through setting up heating chamber 9, with the heat-generating body setting in heating chamber 9, this heating chamber 9 intercommunication has inlet tube 1 and outlet pipe 3 to be right in order to realize the heat-generating body 1 output water source's heating, wherein, this inlet tube 1 and outlet pipe 3 set up the position and can have the multiple, for example inlet tube 1 sets up at heating chamber 9 lower extreme, and outlet pipe 3 sets up modes such as heating chamber 9 upper end.
A temperature limiter 10, the temperature limiter 10 being electrically connected to the control main board 6, the temperature limiter 10 having: and the temperature sensing probe is arranged in the heating cavity 9 or is connected with the outer surface of the heating cavity 9. A temperature limiter 10 electrically connected with the control main board 6 is arranged in the heating cavity 9, wherein the temperature limiter is provided with a temperature sensing probe which is arranged in the heating cavity 9 or is connected with the outer surface of the heating cavity 9 to detect the water temperature. While in the heating chamber 9, for example, the temperature sensitive probe may be an upper region disposed in the middle or near the top of the heating chamber 9.
And the controlled silicon control panel 5 is used for adjusting the output power of the heating body, and the output end of the controlled silicon control panel 5 is electrically connected with the heating body. The singlechip controls the on-off of the control electrode (low current) of the controlled silicon control panel 5, and the anode and the cathode (high current) of the controlled silicon can be controlled to be switched on or off, so that the heating element is electrified to work at proper time.
The water inlet temperature sensor 2, the flow sensor and the water outlet temperature sensor 4 are respectively and electrically connected with the input end of the control mainboard 6, and the output end of the control mainboard 6 is electrically connected with the input end of the silicon controlled control panel 5; the control mainboard 6 can be a single chip microcomputer, the single chip microcomputer can be used as the control mainboard 6 of the electric water heater, and can also output PWM control signals to control the output of the silicon controlled control panel 5 through PWM.
And the voltage detection module 7 is used for detecting whether the fluctuation of the power supply voltage exceeds a preset range or not, outputting a signal to the control mainboard 6 when the fluctuation of the power supply voltage exceeds the preset range, and electrically connecting the output end of the voltage detection module 7 with the input end of the control mainboard 6.
The control principle is as follows:
the water inlet temperature sensor 2 arranged on the water inlet pipe 1 outputs a first temperature signal, the flow sensor arranged on the water inlet pipe 1 outputs a flow pulse signal, the water outlet temperature sensor 4 arranged on the water outlet pipe 3 outputs a second temperature signal, the control mainboard 6 calculates the heating power of a required heating body heated to a set temperature according to the first temperature signal, the flow pulse signal, the second temperature signal and the set heating temperature, the control mainboard 6 is electrically connected with the controlled silicon control board 5, the controlled silicon control board 5 adjusts the heating power of the heating body according to the signal of the control mainboard 6, and the control mainboard 6 controls the controlled silicon to realize timely electrifying work, which is one-time adjustment of the power of the heating body, specifically, an IC program of the single chip microcomputer adjusts the temperature transmitted by the water inlet temperature transmitter according to the flow pulse signal transmitted by the flow sensor, The temperature transmitted by the water outlet temperature sensor 4 and the heating temperature set on the display panel connected with the singlechip calculate the set temperature, the cold water temperature, the temperature difference with the hot water heated actually and calculate the heating power required for heating to the set temperature according to the flow pulse signal;
through setting up in the voltage detection module 7 that the electricity is connected in control mainboard 6, too low lead to the leaving water temperature not to reach under the condition of settlement temperature at electric water heater's operating voltage, detect supply voltage fluctuation at voltage detection module 7 promptly when exceeding the preset range, voltage detection module 7 is with signal output to control mainboard 6, control mainboard 6 continues to control silicon controlled control panel 5 according to this signal and improves the effective input voltage of heat-generating body, automatic reinforcing heat-generating body output, this is the secondary regulation of heat-generating body power, the output that makes the rated power of electric water heater product be the heat-generating body that initial conduction rate corresponds reaches heat-generating body rated power gradually, thereby the realization promotes the temperature that is less than the settlement temperature in the low-voltage environment to the settlement temperature, the utility model has the advantages of can carry out foretell secondary regulation release power. The silicon controlled control panel 5 adjusts and controls the conduction time to reduce or increase the output voltage of the power supply, and simultaneously controls the preset program of the main board 6 to control the output power of the heating element to be smaller than the rated power of the heating element; in addition, it is also possible to provide: the buzzer is electrically connected with the control main board 6, and when the output power reaches the rated power, the buzzer can be sounded to remind; a thermal protector can also be arranged and is electrically connected with the control mainboard 6, and when the output power reaches the rated power, the thermal protector automatically cuts off the power to protect.
The utility model discloses a silicon controlled rectifier control panel 5, wide application in industrial field such as forging, smelting, heat treatment, welding, return bend adopt built-in solid state relay to replace auxiliary relay, start and the control that stops, can embed multichannel protection system such as overcurrent, excessive pressure, current-limiting, voltage limiting, the silicon controlled rectifier control panel 5 is installed the back, the user only need overcurrent, excessive pressure, current-limiting, the voltage limiting adjust can. It may be a thyristor or a component with a thyristor.
And the relay 8 is arranged in a power supply loop of the heating body, and the relay 8 is electrically connected with the control mainboard 6. The arranged relay 8 can be used for connecting or disconnecting the heating body and the power supply loop thereof after receiving the signal so as to realize the control requirement. For example, the relay 8 may be a live wire on-off relay 8, and the control main board 6 controls the relay 8 to communicate with the live wire after receiving the signal of the flow sensor. For example, the relay 8 may be a relay 8 such as a fire-proof on-off relay 8.
And the display panel is electrically connected with the control main board 6. The display panel is used for displaying the state, and the water temperature of the constant temperature water heater can be displayed on the display panel through controlling the preset program of the main board 6, so that reference is provided for a user.
And the water inlet electricity-proof wall 11 is fixedly connected with the water inlet pipe 1. The water inlet electricity-proof wall 11 is fixedly connected with the water inlet pipe 1 to prevent electricity leakage.
And the water outlet electricity-proof wall 12 is fixedly connected with the water outlet pipe 3, and the water outlet electricity-proof wall 12 is fixedly connected with the water outlet pipe 3. The water outlet electricity-proof wall 12 is fixedly connected with the water outlet pipe 3 to prevent electricity leakage.
And the water inlet joint 13 is connected with the water inlet pipe 1 through the water inlet joint 13. The water inlet connector 13 is connected with the water inlet pipe 1 in the low-voltage automatic compensation power electric water heater, and the outside can be connected with the water inlet connector 13 to be communicated with the water inlet pipe 1.
And the water outlet joint 14 is connected with the water outlet pipe 3 through the water outlet joint 14. The water outlet connector 14 is connected with the water outlet pipe 3 in the low-voltage automatic compensation power electric water heater, and the outside can be connected with the water outlet connector 14 to be communicated with the water outlet pipe 3.
As shown in fig. 1 and fig. 2, fig. 2 is a schematic view of the connection relationship between the precise intelligent water flow regulator 16 and the water inlet pipe 1.
The accurate intelligent water flow adjusting device 16 is characterized in that the water inlet pipe 1 is provided with the accurate intelligent water flow adjusting device 16, the accurate intelligent water flow adjusting device 16 mainly comprises a stepping motor, a driving gear arranged on a power output shaft of the stepping motor, a water adjusting valve and a sector gear linked with a valve core of the water adjusting valve, the water adjusting valve is arranged on the water inlet pipe 1, the stepping motor is electrically connected with the control main board 6, and the driving gear is meshed with the sector gear. The sector gear is shown in cooperation with a drive gear to which a stepper motor may be coupled.
During action, the rotating shaft of the stepping motor rotates to drive the driving gear to rotate, so that the sector gear is driven to rotate, and the sector gear is linked with the valve core of the water regulating valve, so that the water flow can be controlled through the stepping motor.
In addition, be equipped with the relief valve on adjusting the water valve, relief valve and regulation water valve are integrated into one piece's overall structure, are provided with the through-hole on casing 15, and the pressure release mouth of relief valve is just to the through-hole of casing 15, and the convenience can the drainage when water pressure is too high. Meanwhile, a flow sensor is arranged on the water inlet pipe 1 between the output end of the water regulating valve and the heating cavity 9, so that the water flow can be detected in real time, and the flow sensor is also electrically connected with the control mainboard 6. The input end of the water inlet pipe is connected to one end of the water inlet joint 13, and the output end refers to the opposite end of the input end. The control mainboard 6 controls the silicon controlled control panel 5 to increase or decrease the voltage of the heating element to change the power of the heating element to reach a constant water outlet temperature by receiving the flow pulse signal of the flow sensor, the first temperature signal of the inlet water temperature sensor 2 and the second temperature signal of the outlet water temperature sensor 4, and controls the silicon controlled control panel 5 to adjust the voltage of the heating element after the control mainboard 6 detects the signals to enable the outlet water temperature to reach a constant temperature all the time if the inlet water temperature or the water flow is changed. Supposing that the water inlet temperature is too low or the water flow is too large, the rated power cannot meet the constant set temperature, the temperature is suddenly cooled and suddenly heated, at the moment, the control mainboard 6 detects that the water outlet temperature cannot reach the set temperature, the accurate intelligent water flow adjusting device 16 can be started to work at once, the driving gear is driven by controlling the rotation of the stepping motor, the driving gear drives the sector gear to drive the valve core on the water adjusting valve to rotate, so that the rotation shaft of the water adjusting valve controls the water valve to adjust the water to be small, the control mainboard 6 can accurately control the rotation speed of the stepping motor, the accuracy of the rotation angle reaches +/-0.1 degrees, the size of the water flow can be accurately, quickly and stably controlled, and the water outlet temperature can quickly and stably reach. If the water flow is supposed to be too small or the set temperature is low, the rated power can meet the constant set temperature, at the moment, the control main board 6 can immediately start the accurate intelligent water flow adjusting device 16 to work, and the rotation of the stepping motor is controlled, so that the rotation shaft of the water adjusting valve is controlled to adjust the water to be large, and the water yield is enabled to be larger.
During operation, running water enters into regulation water valve and flow sensor through water inlet joint 13 along inlet tube 1, reaches heating chamber 9 at last, then follows inlet tube 1 again to water outlet joint 14, and control mainboard 6 detects that flow sensor has rivers outdated, and the system can the automatic start heat-generating body heating. If the water pressure of intaking suddenly rises suddenly and suddenly hangs down, the size of rivers can be adjusted accurately intelligently at this moment to control mainboard 6. If the water flow is too large or the water inlet temperature is too low, the system can automatically adjust the water flow to be small through the stepping motor; if the water flow is too small or the set temperature is reduced, the system can automatically adjust the water flow to be larger through the stepping motor. A constant outlet water temperature can be achieved by the precision intelligent water flow regulator 166 regardless of the variation of the regulation.
During the use, can carry out voltage detection module 7 earlier and carry out work, break off accurate intelligent water flow adjusting device 16, after improving the conduction rate of silicon controlled rectifier control panel 5 through voltage detection module 7, leaving water temperature still is less than when setting for the temperature, manually or automatically open accurate intelligent water flow adjusting device 16, reduce discharge in order to reach and set for stable temperature, make leaving water temperature for setting for the temperature, improve user experience and feel. When manually opening, a switch can be arranged in the supply power circuit of the stepping motor, and the switch is arranged on the shell 15, so that the accurate intelligent water flow adjusting device 16 can be conveniently opened.
Compared with the prior art, the utility model discloses a low-voltage automatic compensation power electric water heater, the temperature sensor 2 of intaking that sets up at inlet tube 1 outputs first temperature signal, the flow sensor who sets up at inlet tube 1 outputs flow pulse signal, the play water temperature sensor 4 who sets up at outlet tube 3 outputs second temperature signal, control mainboard 6 calculates the heating power of the required heat-generating body of heating to the settlement temperature according to first temperature signal, flow pulse signal, second temperature signal and the heating temperature of settlement, control mainboard 6 is connected with silicon controlled rectifier control panel 5 electricity, silicon controlled rectifier control panel 5 adjusts the heating power of heat-generating body according to the signal of control mainboard 6, thereby control mainboard 6 control silicon controlled rectifier realizes the heat-generating body in good time circular telegram work; through the voltage detection module 7 electrically connected with the control mainboard 6, under the condition that the working voltage of the electric water heater is too low, so that the outlet water temperature does not reach the set temperature, namely when the voltage detection module 7 detects that the fluctuation of the power supply voltage exceeds the preset range, the voltage detection module 7 outputs a signal to the control mainboard 6, the control mainboard 6 continuously controls the silicon controlled control panel 5 to improve the effective input voltage of the heating element according to the signal, so as to automatically enhance the output power of the heating element, the initial conduction angle of the silicon controlled control panel 5 is 52.5-67.5 degrees, the conduction rate of the silicon controlled on the silicon controlled control panel 5 corresponding to the conduction angle of 52.5 degrees is 62.50%, the conduction rate of the silicon controlled on the silicon controlled control panel 5 corresponding to the conduction angle of 67.5 degrees is 70.83%, the conduction angle of the silicon controlled on the silicon controlled control panel 5 corresponding to the conduction angle of 52.5 degrees replaces the conduction angle of 0 degree, namely replaces, when in use, the initial conduction rate of the silicon controlled control panel 5 is 62.50-70.83%, the conduction rate of the silicon controlled control panel 5 is the same as the initial conduction rate when in normal use, when in low voltage, the conduction angle is changed by controlling the main board 6 to improve the conduction rate, so that the rated power of the electric water heater product, namely the output power of the heating element corresponding to the initial conduction rate gradually reaches the rated power of the heating element, wherein, the difference value between the initial conduction rate and the 100% conduction rate is used as the power supplement of the heating element when in low voltage, the power of the heating element is not increased when the conduction rate reaches 100%, so that the rated power of the electric water heater product, namely the output power of the heating element corresponding to the initial conduction rate gradually reaches the rated power of the heating element, thereby realizing that the water temperature lower than the set temperature in the low voltage environment is increased to the set temperature, and the structure, the problem of poor user experience when the water temperature does not reach the set temperature is solved, and the user experience is improved;
through setting up accurate intelligent water flow adjusting device 16 on this inlet tube 1, accurate intelligent water flow adjusting device 16's step motor is connected with control mainboard 5 electricity, this step motor passes through gear engagement and is connected with the case of adjusting the water valve, during the use, the temperature of intaking and going out through temperature sensor real-time detection, simultaneously give the control mainboard 6 with the signal, after data analysis is carried out through control mainboard 6, step motor on the accurate intelligent water flow adjusting device 16 of real-time control adjusts the case of adjusting the water valve, thereby realize adjusting water flow, step motor pivoted angle is controlled through the signal that the control mainboard sent, pivoted angle accuracy reaches 0.1, prior art's control angle can only reach 1, the accuracy has improved 10 times. Thereby achieving constant outlet water temperature.
The utility model discloses a low-voltage automatic compensation power electric water heater has the characteristics of secondary regulation release power.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. A low-voltage automatic compensation power electric water heater is characterized by comprising:
a water inlet pipe;
the inlet water temperature sensor is arranged on the inlet pipe;
the flow sensor is arranged on the water inlet pipe;
the water outlet pipe is communicated with the water inlet pipe;
the water outlet temperature sensor is arranged on the water outlet pipe;
a heating element for heating the water outlet of the water inlet pipe;
the low-voltage automatic compensation power electric water heater further comprises:
the silicon controlled rectifier control panel is used for adjusting the output power of the heating element, and the output end of the silicon controlled rectifier control panel is electrically connected with the heating element; the initial conduction angle of the silicon controlled control board is 52.5 degrees to 67.5 degrees;
the water inlet temperature sensor, the flow sensor and the water outlet temperature sensor are respectively and electrically connected with the input end of the control mainboard, and the output end of the control mainboard is electrically connected with the input end of the silicon controlled control panel;
the voltage detection module is used for detecting whether the fluctuation of the power supply voltage exceeds a preset range or not, and the output end of the voltage detection module is electrically connected with the input end of the control mainboard;
accurate intelligent water flow adjusting device sets up on this inlet tube, and this accurate intelligent water flow adjusting device has:
the stepping motor is electrically connected with the control main board and is provided with a power output shaft;
the driving gear is arranged on the power output shaft;
the water regulating valve is arranged on the water inlet pipe and is provided with a valve core;
and the sector gear is meshed with the driving gear and is linked with the valve core.
2. The low-voltage automatic compensation power electric water heater according to claim 1, wherein the rated power of the heating body is 7500W-12000W.
3. The low-voltage automatic compensation power electric water heater according to claim 2, wherein the control main board is a single chip microcomputer.
4. The low voltage auto-compensating power electric water heater of claim 3, further comprising:
and the relay is arranged in the power supply loop of the heating body and is electrically connected with the control mainboard.
5. The low voltage auto-compensating power electric water heater of claim 4, further comprising:
a heating chamber in which the heating body is disposed;
the temperature limiter, this temperature limiter and control mainboard electricity are connected, and this temperature limiter has:
the temperature sensing probe is arranged in the heating cavity or is connected with the outer surface of the heating cavity.
6. The low voltage auto-compensating power electric water heater of claim 5, further comprising:
and the display panel is electrically connected with the control main board.
7. The low voltage auto-compensating power electric water heater of claim 6, further comprising:
the water inlet electricity-proof wall is fixedly connected with the water inlet pipe.
8. The low voltage auto-compensating power electric water heater of claim 7, further comprising:
and the water outlet electricity-proof wall is fixedly connected with the water outlet pipe.
9. The low voltage auto-compensating power electric water heater of claim 8, further comprising:
the water inlet joint is connected with the water inlet pipe.
10. The low voltage auto-compensating power electric water heater of claim 9, further comprising:
and the water outlet connector is connected with the water outlet pipe.
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| CN202020485591.7U CN211903321U (en) | 2020-04-03 | 2020-04-03 | Low-voltage automatic compensation power electric water heater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524809A (en) * | 2020-11-23 | 2021-03-19 | 蓓慈电器有限公司 | Multi-combination heating system and foot bath device |
| CN113849010A (en) * | 2021-09-01 | 2021-12-28 | 九阳股份有限公司 | Temperature control method and heating equipment |
-
2020
- 2020-04-03 CN CN202020485591.7U patent/CN211903321U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524809A (en) * | 2020-11-23 | 2021-03-19 | 蓓慈电器有限公司 | Multi-combination heating system and foot bath device |
| CN113849010A (en) * | 2021-09-01 | 2021-12-28 | 九阳股份有限公司 | Temperature control method and heating equipment |
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