TWI595197B - Pressurized water method of hot-water heater, and hot-water heater having the same - Google Patents

Description

Pressurized water outlet method of hot water device and hot water device thereof

The present invention relates to a pressurized water discharge method for a hot water device and a hot water device thereof, and more particularly to a pressurized water discharge method for a hot water device that is pressurized by a pump and a hot water device thereof.

With the advancement of the times, hot water devices have become an indispensable device for the current home life. The energy classification used by hot water devices can be roughly divided into gas water heaters, electric water heaters and solar water heaters. Among them, gas water heaters are most commonly used.

Conventional gas water heaters usually include a fan, a burner and a heat exchanger, and the burner can be used to heat the heat exchanger so that cold water can enter the heat exchanger for heat exchange and then drain the hot water.

However, when the water heater wants to use hot water, it takes a period of heating time to turn on the faucet before it starts to generate hot water, which not only wastes water resources, but also causes inconvenience to the user; or the conventional water heater often cannot provide a large The water pressure causes inconvenience in the use of bathing or rinsing; or the conventional water heater often provides hot water to burn the user.

In view of the above, the present invention discloses a pressurized water outlet method for a hot water device and a hot water device thereof, which are designed to enhance the convenience of use of the hot water device through the design of pumping pressurized water provided in the hot water device.

The invention provides a pressurized water outlet method for a hot water device, which is suitable for a hot water device. The hot water device is connected to a faucet or a shower head through an outlet pipe. The hot water device includes a hot water main unit, a control unit and a pump. The control unit and the pump are disposed in the hot water main unit, and the control unit controls the operation of the pump through a pump driving unit. The method for pressurizing the water includes: determining whether the water source of the faucet or the shower head is turned on, and if it is determined that the water source of the faucet or the shower head is turned on, calculating the maximum heat required by the faucet or the shower head; determining whether the fire output of the hot water device is less than the maximum heat If it is determined that the firepower output of the hot water device is less than the maximum heat, it is determined whether the pump fault detection is performed; if it is determined that the pump fault detection is not performed, the pump is started; and if it is determined to be executed If the pump is fault detected, it is judged whether the pump is faulty. If it is determined that the pump is faulty, the hot water device displays a warning message.

The invention provides a hot water device with a pressurized water outlet method, comprising a hot water host, a control unit and a pump. The control unit is placed in the hot water main unit. The pump is coupled to the control unit via a pump drive unit. The hot water device is connected to a faucet or a shower head through an outlet pipe, and the hot water device has a pressurized water discharge method.

Based on the above, the present invention provides a hot water device that passes through a mechanism of "determining whether it is less than the maximum heat" and "determining whether or not to perform pump failure detection" to enter a process of starting the pump or "determining whether the pump is malfunctioning". When both of the above conditions are satisfied, the flow of "determining whether the pump is malfunctioning" is entered; when the above "determination is less than the maximum heat and the failure detection of the pump is not performed", the startup pump is started. . In this way, the present invention can make the pump pressurize the water to increase the water output of the water heater and improve the convenience of use of the hot water device.

In order to further understand the technology, method and function of the present invention in order to achieve the intended purpose, reference should be made to the detailed description and drawings of the invention. The drawings and the annexed drawings are to be considered as illustrative and not restrictive.

1‧‧‧Water heater

10‧‧‧ hot water host

H1‧‧‧Outlet

C1‧‧‧ water inlet

C2‧‧‧ cold water pipe

T1‧‧‧ thermostat

W1‧‧‧ Faucet

S1‧‧‧ shower head

100‧‧‧Control unit

102‧‧‧Pump drive unit

104‧‧‧ pump

106‧‧‧Incoming water temperature detection unit

108‧‧‧Water temperature detection unit

110‧‧‧Influent detection unit

112‧‧‧Temperature setting unit

114‧‧‧Protection unit

116‧‧‧ gas conditioning unit

118‧‧‧heating unit

120‧‧‧Power supply unit

122‧‧‧Fan drive unit

124‧‧‧Segmented valve drive unit

S301~S319‧‧‧Steps

S401~S421‧‧‧Steps

S501~S511‧‧‧Steps

E1, E2‧‧‧ steps

1 is a schematic view showing the operation of a hot water device according to an embodiment of the present invention.

2 is a detailed functional block diagram of a hot water device according to another embodiment of the present invention.

3 is a flow chart of a method for controlling pumping and pressurizing water in a hot water device according to another embodiment of the present invention.

4 is a flow chart of pump failure detection of a water heater according to another embodiment of the present invention.

Fig. 5 is a flow chart showing the control of the pump in the closed use of the hot water device according to another embodiment of the present invention.

1 is a schematic view showing the operation of a hot water device according to an embodiment of the present invention. Please refer to Figure 1. A hot water device 1 is connected to a faucet W1 or a shower head S1 through an outlet pipe H1. The hot water device 1 includes a hot water main unit 10, a temperature controller t1, a control unit 100, and a pump 104. The hot water device 1 is, for example, a water heater. In practice, the control unit 100 and the pump 104 are disposed within the hot water host 10. The control unit 100 transmits a pump drive unit 102 to control the operation of the pump 104.

In practice, the hot water device 1 is connected to the tap water through a water inlet pipe C1. That is, the water inlet pipe C1 is a cold water pipe. After the outlet pipe H1 is heated by the hot water device 1, the outlet pipe H1 outputs hot water. Wherein, when the hot water device 1 performs the heating operation, the hot water device 1 passes through the pump 104 to pressurize the water, so that the faucet W1 or a shower head S1 outputs a large water pressure. Further, the temperature controller t1 is, for example, a temperature controller that controls the heating power output of the water heater 1 so that the water temperature of the water outlet pipe H1 reaches the set temperature. This embodiment does not limit the aspect of the hot water device 1 and its operation.

2 is a detailed functional block diagram of a hot water device according to another embodiment of the present invention. Please refer to Figure 2. A hot water device 1 includes an inflow water temperature detecting unit 106, an outlet water temperature detecting unit 108, a water inflow detecting unit 110, a pump driving unit 102 and a Pump 104. In practice, the water inlet temperature detecting unit 106, the water outlet temperature detecting unit 108, the water inflow detecting unit 110, and the pump driving unit 102 are coupled to the control unit 100, respectively. The pump 104 is coupled to the pump drive unit 102. The water inlet temperature detecting unit 106 or the water inflow detecting unit 110 is disposed, for example, in the water inlet pipe C1. The outlet water temperature detecting unit 108 is disposed, for example, in the water outlet pipe H1.

The water intake detecting unit 110 is coupled to the control unit 100 and is used to measure the amount of water entering the hot water device 1. If the amount of influent water exceeds a certain value, or is within a certain value range, a start signal is transmitted to allow the control unit 100 to operate normally, and if the amount of influent water is below a certain value or outside a certain value range, the transmission is transmitted. A stop signal causes the control unit 100 to cease operation and stop powering the heating unit 118. The water intake amount detecting unit 110 may be a Hall wafer water amount detecting device, and uses the Hall effect to detect the amount of water.

When the water flow rate is larger, the rotational speed of the magnetic substance (such as a magnet) in the water intake amount detecting unit 110 is faster, and the frequency generated by the Hall effect is higher, so the water intake detecting unit 110 generates the Hall effect. After the frequency is converted, the amount of water entering the hot water device 1 can be known, and the data is transmitted to the control unit 100. It is worth mentioning that the use of the Hall effect to detect the amount of water, with the water inlet filter device, will not cause errors due to dirt or impurities in the water, the measurement results will be more accurate.

The water inlet temperature detecting unit 106 is for detecting the water temperature of the water inlet of the hot water device 1, and generates an inflow water temperature signal to be output to the control unit 100. The outlet water temperature detecting unit 108 is configured to detect the water temperature of the water outlet of the hot water device 1, and generate a water temperature signal to be output to the control unit 100. If the outlet water temperature is too high, the operation of the hot water device 1 is stopped, the user is prevented from being burnt, and the stability of the hot water device 1 line is improved.

The pump drive unit 102 is realized, for example, by a pump drive circuit or a pump driver. The pump driving unit 102 is used to drive the operation of the pump 104, so that the pump 104 is pressurized to pump water and drain. The pump 104 is, for example, a displacement pump, a power pump, a jet pump, a rotary pump, a reciprocating pump, a centrifugal pump, an axial pump or a hybrid pump. to realise. This embodiment does not limit the aspects of the pump 104 and the pump drive unit 102.

In addition, the hot water device 1 further includes a temperature setting unit 112, a protection unit 114, a gas conditioning unit 116, a heating unit 118, a power supply unit 120, a fan driving unit 122, and a segment valve driving unit 124. In practice, the temperature setting unit 112, the protection unit 114, the gas adjustment unit 116, the power supply unit 120, the fan drive unit 122, and the segmentation valve drive unit 124 are coupled to the control unit 100, respectively. The power supply unit 120 is coupled to the fan drive unit 122 and the segmented valve drive unit 124 , and the heating unit 118 is coupled to the gas adjustment unit 116 .

The temperature setting unit 112 is configured to allow the user to set the water temperature of the water, and the setting can be received through a handle, a knob or a button. After receiving the user's setting, the temperature setting unit 112 transmits a temperature setting signal to the control unit 100, and then the control unit 100 adjusts according to the water inflow signal, the influent temperature signal, the water temperature signal, and the temperature setting signal. The power supply unit 120 supplies the power of the power to the heating unit 118 to allow the water temperature to meet the needs of the user.

It is worth mentioning that the determination steps of FIG. 3, FIG. 4 and FIG. 5 below are performed by the control unit 100 for logic analysis and determination, and the water inlet temperature, the outlet water temperature and the water intake amount are transmitted through the water inlet temperature detecting unit 106 and the water outlet. The temperature detecting unit 108 and the water intake detecting unit 110 are configured to obtain related information, whereby the control unit 100 can control the operations of the pump driving unit 102 and the pump 104, and the control pump 104 of the hot water device 1 pressurizes the water. The method is shown in Figures 3, 4 and 5. The units or components of the remaining hot water device 1 should be known to those skilled in the art and will not be described herein.

3 is a flow chart of a method for controlling pumping and pressurizing water in a hot water device according to another embodiment of the present invention. Please refer to Figure 3. A pressurized water discharge method for a hot water device 1 is suitable for a hot water device 1. The hot water device 1 is connected to a faucet W1 or a shower head S1 through an outlet pipe H1. The hot water device 1 includes a hot water main unit 10, a control unit 100, and a pump 104. The control unit 100 and the pump 104 are disposed in the hot water main unit 10. The control unit 100 controls the operation of the pump 104 through a pump driving unit 102. The method for pressurizing the effluent comprises: determining whether the water source is turned on in step S301. In practice, when the user opens the faucet W1 or the shower head S1, the hot water device 1 starts to operate. Among them, the water heater 1 through the pump 104 will increase the water pressure of the faucet W1 or the shower head S1, thereby improving the comfort of the user to bathe or rinse. In step S303, the maximum amount of heat required is calculated. Briefly, it is judged whether the water source of the faucet W1 or the shower head S1 is turned on, and if it is determined that the water source of the faucet W1 or the shower head S1 is turned on, the maximum amount of heat required for the faucet W1 or the shower head S1 is calculated.

In practice, when the hot water device 1 starts to operate, the hot water device 1 calculates the maximum amount of heat for this water consumption. The maximum heat is to bring the water temperature of the hot water device 1 to a preset temperature. Next, in step S305, it is determined whether it is less than the maximum amount of heat. If the decision result in the step S305 is NO, the end of the step E2 is performed. That is, the hot water device 1 normally outputs the maximum amount of heat.

On the other hand, if the result of the determination in step S305 is YES, then in step S307, it is determined whether or not the failure detection of the pump 104 is performed. That is, it is judged whether or not the fire power output of the hot water device 1 is smaller than the maximum heat, and if it is determined that the fire power output of the hot water device 1 is less than the maximum heat, it is determined whether or not the failure detection of the pump 104 is performed. In practice, if the result of the determination in step S307 is NO, the process proceeds to step S313 to start the pump 104. That is, the present embodiment passes through the determining steps of step S305 and step S307 to determine that the pump 104 is normal and starts the pump 104 operation. Therefore, the hot water device 1 is pumped through the pump 104 to pressurize and pressurize the water.

If the result of the determination in step S307 is YES, the flow proceeds to step S309, where it is determined whether or not the pump 104 is malfunctioning. If the result of the determination in step S309 is YES, that is, the pump 104 is faulty, the process proceeds to step S311, and the hot water device 1 displays a warning message. Therefore, the user passes through the display unit of the hot water device 1 to obtain the fault message of the pump 104.

If the result of the determination in step S309 is NO, that is, the pump 104 is normal, the process proceeds to step S315, and it is determined whether or not the water source is turned off. In practice, the hot water device 1 is smaller than When the maximum heat and the pump 104 are normal, it means that it is possible that "the pump 104 is pressurized or the pressurized water is too much, causing the hot water device 1 to be smaller than the maximum heat". Therefore, the present embodiment proceeds to the procedure of "determining whether to turn off the water source" through the judging step of step S315.

If the result of the determination in step S315 is YES, the process proceeds to step S319, and the pump 104 is turned off. That is to say, the user has turned off the use of the faucet W1 or the shower head S1. Therefore, the hot water device 1 also stops the operation of the pump 104.

If the result of the determination in step S315 is NO, the process proceeds to step S317, and it is determined whether the preset temperature is not reached. If the decision result in the step S317 is NO, the process proceeds to a determination in the step S315. If the decision result in the step S317 is YES, the flow proceeds to a step S319 to turn off the pump 104. That is, if it is determined that the water source is not turned off, it is judged whether a preset temperature of the hot water host 10 is not reached, and if it is determined that the preset temperature is not reached, the pump 104 is turned off.

Briefly, when the water temperature of the hot water device 1 reaches the preset temperature, it will return to the step of "determining whether to turn off the water source"; when the water source is turned on and the water temperature of the hot water device 1 cannot reach the preset temperature, The pump 104 is then turned off. That is, the pressurized effluent of the pump 104 is too fast or too large, so that the burner of the hot water device 1 has not yet heated the heat exchanger to a preset temperature. Therefore, the pump 104 is turned off to raise the temperature of the heat exchanger.

Next, the pump 104 failure detection flow is further explained.

4 is a flow chart of pump failure detection of a water heater according to another embodiment of the present invention. Please refer to Figure 4. The step flow shown in FIG. 4 is a detailed flow of "determining whether the pump 104 is faulty" according to step S309 in FIG. That is, the detection process for further explaining the failure of the pump 104 includes the following steps:

In step S401, it is determined whether the first delay time is reached. If the result of the determination in step S401 is YES, the process proceeds to step S403, where the current first amount of water is recorded. That is, if it is determined that the first delay time is reached, the current first amount of water is recorded. Next, in step S405, the pump 104 is started.

After the pump 104 is started, in step S407, it is determined whether the second delay time is reached. If the result of the determination in step S407 is YES, the process proceeds to step S409, where the current second amount of water is recorded. That is, the pump 104 is started, and it is judged whether a second delay time is reached. If it is determined that the second delay time is reached, the current second water amount is recorded.

In practice, the first and second delay times are, for example, 1 second, 2 seconds, or other numerical seconds. Wherein, the first delay time is equal to the second delay time. In other words, if the first and second delay times are, for example, 1 second, respectively, the first amount of water is recorded one second before the pump 104 is started; and the second amount of water is recorded one second after the pump 104 is started. If the pump 104 is operating normally, the second amount of water will be greater than the first amount of water. If the pump 104 is not functioning properly, the first amount of water is approximately equal to the second amount of water.

Next, in step S411, the water amount difference is calculated. In practice, the difference in water volume is equal to the difference between the second amount of water minus the first amount of water. In step S413, it is determined whether the current water amount difference is greater than a preset water amount difference. Among them, the preset water amount difference can be designed according to the pressurized water discharge amount of the hot water device 1. If the result of the determination in step S413 is YES, that is, the pump 104 is normally operated, the process proceeds to step S415, and it is determined whether the previous check is a fault state. If the result of the determination in step S415 is YES, the process proceeds to step S421, and the warning message is released.

In practice, if it is determined that the difference is greater than the preset water amount difference, it is determined whether the previous pump 104 check is a fault state, and if it is determined that the previous check is a fault state, the warning message is cancelled. The water heater 1 displays a fault message because the pump 104 often fails. Therefore, if it is detected that the pump 104 is normal, the previous failure message or record is eliminated.

On the other hand, if the result of the determination in step S413 is NO, that is, the pump 104 is malfunctioning or is not operating normally, the process proceeds to step S417, and the pump 104 is turned off. And in step S419, a warning message is displayed. In other words, calculate the difference in water quantity and determine whether the current water quantity difference is greater than a preset water quantity difference, and if it is determined that it is not greater than the preset water quantity Poor, the pump 104 is turned off and a warning message is displayed.

Briefly, in this embodiment, it is determined whether the pump 104 is operating normally by "the difference in water amount before the pump 104 is started and after the pump 104 is started". If it is higher than the preset water amount difference, the pump 104 operates normally, and checks whether there is a message indicating the fault state in the previous time, and eliminates the message of the previous fault state. On the other hand, if the pump 104 is faulty or does not operate normally if it is lower than the preset water amount difference, a warning message indicating that the pump 104 is malfunctioning is displayed.

Fig. 5 is a flow chart showing the control of the pump in the closed use of the hot water device according to another embodiment of the present invention. Please refer to Figure 5. The flow of the steps shown in FIG. 5 is based on the process of "starting the pump 104" in step S313 in FIG. 3, "determining whether the water source is turned off" in step S315, and "determining whether the preset temperature is not reached" in step S317. . That is to further illustrate the control flow for shutting down the pump 104 in use, including the following steps: In step S501, the pump 104 is in startup. In step S503, it is determined whether the gas has reached the maximum output. If the result of the determination in step S503 is NO, the process proceeds to the end step. In step S505, it is determined whether the temperature difference is greater than a preset value. In practice, the preset value is, for example, 3 degrees. In other embodiments, the preset value can be any value. When it is judged that the temperature difference is greater than 3 degrees, the process proceeds to step S507, and the output of the gas is lowered. Briefly speaking, the pump 104 is in the startup, and it is determined whether the gas of the hot water device 1 has reached the maximum output. If it is judged that the gas has reached the maximum output, it is judged whether the temperature difference is greater than a preset value, and if the preset temperature is reached, the gas is lowered. Output.

In step S509, it is determined whether the output of the gas reaches the target output value. If the answer of the step S509 is NO, the process returns to the previous step to wait. If the determination in step S509 is YES, the process proceeds to step S511, and the pump 104 is turned off. That is to say, if it is judged whether the output of the gas reaches a target output value. If the output of the ventilator reaches the target output value, the pump 104 is turned off.

It is worth mentioning that this embodiment first reduces the output of the gas, resulting in hot water loading. The set water temperature drops, and when the water temperature drops to the general target temperature, the program for shutting down the pump 104 is performed, thereby protecting the user from being burnt by hot water. Briefly, prior to shutting down operation of pump 104, this embodiment first reduces the output of the gas to reduce the temperature of the effluent to a generally safe temperature.

In summary, the present invention is a hot water device that passes the mechanism of "determining whether it is less than the maximum heat" and "determining whether to perform the fault detection of the pump" to enter the start pump or "determine whether the pump is faulty". Process. When both of the above conditions are satisfied, the flow of "determining whether the pump is malfunctioning" is entered; when the above "determination is less than the maximum heat and the failure detection of the pump is not performed", the startup pump is started. . In addition, the present embodiment determines whether the pump is faulty by a mechanism of "determining whether the water amount difference is greater than a preset water amount difference". Wherein, if the water volume difference is greater than the preset water amount difference, the previous fault record or message is eliminated; if the water volume difference is less than the preset water amount difference, the pump is turned off and a warning message of the pump fault is displayed. The pump that is in the startup will turn off the pump by reducing the gas output and lowering the water temperature to a safe temperature by "determining that the gas has reached the maximum output" and "determining that the temperature difference is greater than the preset value". Pu, in order to protect the user to avoid hot water burns. In this way, the present invention can make the pump pressurize the water to increase the water output of the water heater and improve the convenience of use of the hot water device.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the invention.

S301~S319‧‧‧Steps

E1, E2‧‧‧ steps

Claims (9)

A pressurized water outlet method for a hot water device is suitable for a hot water device connected to a faucet or a shower head through an outlet pipe, the hot water device comprising a hot water main unit, a control unit and a pump The control unit and the pump are disposed in the hot water host, and the control unit controls the operation of the pump through a pump driving unit, and the pressurized water discharging method comprises: determining whether to open the water source of the water tap or the shower head If it is determined that the water source of the faucet or the shower head is opened, the maximum heat required by the faucet or the shower head is calculated; whether the fire output of the hot water device is less than the maximum heat is determined, and if the hot water device is determined If the firepower output is less than the maximum heat, it is determined whether the fault detection of the pump is performed; if it is determined that the pump fault detection is not performed, the pump is started; and if it is determined that the pump is performing the fault If it is detected, it is determined whether the pump is faulty. If it is determined that the pump is faulty, the hot water device displays a warning message; wherein it is determined whether the pump is The step further includes: determining whether a first delay time is reached, and if it is determined that the first delay time is reached, recording a current first amount of water; starting the pump, and determining whether a second delay time is reached, If it is determined that the second delay time is reached, the current second water amount is recorded; the water quantity difference is calculated, and it is determined whether the current water quantity difference is greater than a preset water quantity difference, and if it is determined that the value is not greater than the If the preset water quantity difference is preset, the pump is turned off and a warning message is displayed; and if it is determined that the difference is greater than the preset water amount difference, it is judged whether the previous inspection of the pump is a fault state, and if it is determined that the previous inspection is The fault status releases the warning message. The method according to claim 1, wherein the step of determining whether the pump is faulty further comprises: If it is determined that the pump is not the fault, it is determined whether the water source is turned off; and if it is determined that the water source is not turned off, it is determined whether the preset temperature of the hot water host is not reached, and if it is determined that the water source is not up to the preset Set the temperature to turn off the pump. The method according to claim 2, wherein the step of calculating the difference in the amount of water further comprises: the difference in the amount of water being equal to the difference between the second amount of water minus the first amount of water. The pressurized water discharge method of the hot water device according to claim 2, wherein the first delay time is equal to the second delay time. The method according to claim 2, wherein the step of determining whether to turn off the water source further comprises: the pump is in the startup, determining whether the gas of the hot water device has reached the maximum output, if judging If the gas has reached the maximum output, it is judged whether the temperature difference is greater than a preset value; if it is judged that the temperature difference is greater than the preset value, the output of the gas is lowered, and whether the output of the gas reaches a target output value is determined; and the output of the gas is When the target output value is reached, the pump is turned off. The pressurized water discharge method of the hot water device according to claim 5, wherein the preset value is 3 degrees. A water heater with a pressurized water outlet method, comprising: a hot water main unit; a control unit disposed in the hot water main unit; and a pump coupled to the control unit through a pump driving unit; wherein The hot water device is connected to a faucet or a shower head through an outlet pipe, and the hot water device has a pressurized water discharge method as one of claims 1 to 6. The hot water device with a pressurized water outlet method according to claim 7, wherein the hot water device further comprises a water inlet temperature detecting unit, a water temperature detecting unit and a water inlet amount. The detecting unit, the water inlet temperature detecting unit, the water outlet temperature detecting unit and the water inlet detecting unit are respectively coupled to the control unit. The hot water device with a pressurized water outlet method according to claim 7 or 8, wherein the hot water device further comprises a temperature setting unit, a protection unit, a gas conditioning unit, a heating unit, a power supply unit, a fan drive unit and a segment valve drive unit, the temperature setting unit, the protection unit, the gas adjustment unit, the power supply unit, the fan drive unit and the segment valve drive unit are respectively coupled to the control unit, The power supply unit is coupled to the fan drive unit and the segmented valve drive unit, and the heating unit is coupled to the gas adjustment unit.