Electric water heater and control method thereof

Abstract

The present invention discloses an electric water heater and a control method thereof. The housing of the electric water heater is provided with a somatosensory parameter collection device, the somatosensory parameter collection device includes an infrared image module and an oxygen sensor module, and the somatosensory parameter collection device is arranged in a transparent protective shell, and the protective shell is provided with a hollow hole. The control method measures the average value of the user's body surface temperature and the average value of the ambient humidity in a fixed time in different time periods, and adjusts the operation parameters of the electric water heater according to the difference in the somatosensory data measured in different time periods, and the difference between the somatosensory data and the shower comfort temperature and shower comfort humidity. According to an electric water heater and a control method thereof provided by the present invention, the parameter adjustment of the electric water heater is more intelligent, and a comfortable shower environment is provided for the user to improve the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to an electric water heater and a control method thereof. Background Art

[0002] When using an existing electric water heater, the user generally sets the outlet water setting temperature of the electric water heater, so that the electric water heater heats the water according to the outlet water setting temperature. However, the outlet water setting temperature of the electric water heater is usually set by the user according to intuition, which may cause the water temperature output by the electric water heater to fail to truly meet the comfortable shower conditions perceived by the human body, resulting in the electric water heater being unable to accurately create a comfortable shower environment for the user. Summary of the invention

[0003] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention aims to propose an electric water heater and a control method thereof, so that the parameter adjustment of the electric water heater is more intelligent, providing users with a comfortable shower environment to improve the user experience.

[0004] The above purpose is achieved through the following technical solutions:

[0005] An electric water heater, wherein a body sensing parameter collection device is provided on the shell of the electric water heater, and the body sensing parameter collection device comprises an infrared image module and an oxygen sensor module, wherein the infrared image module is used to obtain the user's body surface temperature, and the oxygen sensor module is used to obtain the humidity of the user's environment, and the body sensing parameter collection device is arranged in a transparent protective shell, and the protective shell is provided with a hollow hole.

[0006] In one embodiment, the protective shell is cylindrical, and the hollow hole is arranged on the side of the protective shell.

[0007] In one of the embodiments, the body sensory parameter collection device is disposed below the electric water heater housing.

[0008] A control method for an electric water heater, comprising the following steps: measuring the average body temperature of a user and the average ambient humidity within a fixed time for the first time; measuring the average body temperature of the user and the average ambient humidity within the fixed time for the second time; and adjusting the operation parameters of the electric water heater according to the difference between the average body temperature of the user and the average ambient humidity measured for the first time and the second time, and the difference between the average body temperature of the user and the average ambient humidity measured for the second time and the shower comfort temperature and the shower comfort humidity.

[0009] In one embodiment, the measurement fixed time is 30 seconds.

[0010] In one of the embodiments, the comfortable shower temperature is 42° C., and the comfortable shower humidity is 80%.

[0011] In one of the embodiments, when the average values ​​of the user's body surface temperature and the average values ​​of the ambient humidity within the fixed time measured for the second time are greater than those of the first time, and the average value of the user's body surface temperature measured for the second time is greater than the shower comfort temperature and / or the average value of the ambient humidity is greater than the shower comfort humidity, the set temperature of the hot water output is lowered, the power of the electric heating tube is lowered and / or the water output is increased, and the operating parameters of the electric water heater at the first fixed time measured are set as the target operating parameters of the current electric water heater.

[0012] In one of the embodiments, when the average values ​​of the user's body surface temperature and the average values ​​of the ambient humidity within the fixed time measured for the second time are smaller than those of the first time, and the average value of the user's body surface temperature measured for the second time is less than the shower comfort temperature and / or the average value of the ambient humidity is less than the shower comfort humidity, the set temperature of the hot water output is lowered, the power of the electric heating tube is lowered and / or the water output is increased, and the operating parameters of the electric water heater at the first fixed time measured are set as the target operating parameters of the current electric water heater.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] 1. The electric water heater and control method thereof of the present invention enable the electric water heater to reasonably adjust the operating parameters of the electric water heater according to the change in the user's body sensory parameters, thereby preventing the user from being in a shower environment where the water outlet temperature is too hot or too cold, and providing the user with a comfortable shower environment to improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an electric water heater in an embodiment of the present invention;

[0016] Figure 2 It is a control flow chart of the electric water heater in an embodiment of the present invention. DETAILED DESCRIPTION

[0017] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0018] See also Figure 1The embodiment of the present invention provides an electric water heater. Specifically, the housing of the electric water heater is provided with a somatosensory parameter collection device 100. The somatosensory parameter collection device 100 includes an infrared image module and an oxygen sensor module. The infrared image module is used to obtain the user's body surface temperature, and the oxygen sensor module is used to obtain the humidity of the user's environment. The somatosensory parameter collection device 100 is arranged below the housing of the electric water heater and installed in a transparent protective shell 200. The installation position of the somatosensory parameter collection device 100 is mainly considered to facilitate the measurement of the user's somatosensory parameters. The installation below the housing of the electric water heater can meet the detection requirements of most scenes. The protective shell 200 can reduce the influence of water vapor on the somatosensory parameter collection device 100. At the same time, the protective shell 200 uses a transparent material to facilitate the infrared rays of the infrared image module to directly penetrate and thus detect the body temperature of the human body surface. The protective shell 200 also plays a protective role. The purpose of setting the hollow hole is mainly to enable the oxygen sensor module of the somatosensory parameter collection device 100 to accurately measure the ambient temperature. The hollow hole is set on the side of the protective shell 200 to reduce the entry of water vapor.

[0019] See also Figure 2 The embodiment of the present invention further provides a control method for an electric water heater, comprising:

[0020] S100, measuring the average body temperature and the average ambient humidity of the user within a fixed period of time for the first time;

[0021] S200, measuring the average body temperature of the user and the average ambient humidity within a fixed period of time for the second time;

[0022] S300, adjusting the operation parameters of the electric water heater according to the difference between the average values ​​of the user's body surface temperature and the average values ​​of the ambient humidity measured for the first time and the second time, and the difference between the average values ​​of the user's body surface temperature and the average values ​​of the ambient humidity measured for the second time and the shower comfort temperature and the shower comfort humidity.

[0023] In one embodiment, when the average values ​​of the user's body surface temperature and the average values ​​of the ambient humidity measured for the second time within a fixed time are greater than those of the first time, and the average value of the user's body surface temperature measured for the second time is greater than the shower comfort temperature and / or the average value of the ambient humidity is greater than the shower comfort humidity, the set temperature of the hot water outlet is lowered, the power of the electric heating tube is lowered and / or the water outlet volume is increased, and the operating parameters of the electric water heater at the first fixed measurement time are set as the target operating parameters of the current electric water heater, wherein the fixed measurement time is 30 seconds. Specifically, the average body surface temperature of the user measured for the second time is 43°C and the average ambient humidity is 90%, the average body surface temperature of the user measured for the first time is 40°C and the average ambient humidity is 60%, the shower comfort temperature set by the system is 42°C and the shower comfort humidity is 80%. Since the average body surface temperature and the average ambient humidity of the user measured for the second time are greater than the data measured for the first time and the shower comfort temperature and shower comfort humidity values ​​set by the system, the operating parameters of the electric water heater are changed from a heating power of 1200w, a heating power-on time of 50s, and a power-off time of 15s in the second measurement period to a heating power of 1000w, a heating time of 50s on, and a power-off time of 25s in the first measurement period.

[0024] In one embodiment, when the average values ​​of the user's body surface temperature and the average values ​​of the ambient humidity measured for the second time within a fixed time are smaller than those measured for the first time, and the average value of the user's body surface temperature measured for the second time is less than the shower comfort temperature and / or the average value of the ambient humidity is less than the shower comfort humidity, the set temperature of the hot water outlet is lowered, the power of the electric heating tube is lowered and / or the water outlet volume is increased, and the operating parameters of the electric water heater at the first fixed measurement time are set as the target operating parameters of the current electric water heater, wherein the fixed measurement time is 30 seconds. Specifically, the average body surface temperature of the user measured for the second time is 40°C and the average ambient humidity is 60%, the average body surface temperature of the user measured for the first time is 42°C and the average ambient humidity is 80%, and the shower comfort temperature set by the system is 42°C and the shower comfort humidity is 80%. Since the average body surface temperature and the average ambient humidity of the user measured for the second time are lower than the data measured for the first time and the shower comfort temperature and shower comfort humidity values ​​set by the system, the operating parameters of the electric water heater are changed from a heating power of 1000w, a heating power-on time of 50s, and a power-off time of 25s in the second measurement period to a heating power of 1200w, a heating time of 50s on, and a power-off time of 15s in the first measurement period.

[0025] According to the above control method, since the change in the body sensory parameters can reflect whether the human body is in an overcold environment or an overheated environment, the electric water heater reasonably adjusts the operating parameters of the electric water heater according to the change in the user's body sensory parameters, which can avoid the user being in a shower environment with an overheated or overcold water outlet temperature, thereby providing the user with a comfortable shower environment.

Claims

1. A control method for an electric water heater, characterized in that: The electric water heater housing is provided with a somatosensory parameter collection device, which includes an infrared image module and an oxygen sensor module, the infrared image module is used to obtain the user's body surface temperature, and the oxygen sensor module is used to obtain the humidity of the user's environment. The somatosensory parameter collection device is arranged in a transparent protective shell, and the protective shell is provided with a hollow hole; The control method comprises the following steps: S100, measuring the average body temperature and the average ambient humidity of the user within a fixed time for the first time; S200, measuring the average body temperature and the average ambient humidity of the user within a fixed time for the second time; S300, adjusting the operating parameters of the electric water heater according to the difference between the average body temperature and the average ambient humidity of the user measured for the first time and the second time, and the difference between the average body temperature and the average ambient humidity of the user measured for the second time and the shower comfort temperature and the shower comfort humidity; When the average body temperature of the user and the average ambient humidity within the fixed time measured for the second time are greater than those of the first time, and the average body temperature of the user measured for the second time is greater than the shower comfort temperature and / or the average ambient humidity is greater than the shower comfort humidity, the set temperature of the hot water outlet is lowered, the power of the electric heating tube is lowered and / or the water output is increased, and the operating parameters of the electric water heater at the first fixed time measured are set as the target operating parameters of the current electric water heater.

2. The control method of the electric water heater according to claim 1, characterized in that: The protective shell is cylindrical, and the hollow holes are arranged on the side of the protective shell.

3. The control method of the electric water heater according to claim 1, characterized in that: The body sensory parameter collection device is arranged below the electric water heater housing.

4. The control method according to claim 1, characterized in that: The measurement fixed time is 30 seconds.

5. The control method according to claim 1, characterized in that: The comfortable shower temperature is 42° C., and the comfortable shower humidity is 80%.

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