CN111351224A - Method for adjusting power of electric water heater and electric water heater - Google Patents
Method for adjusting power of electric water heater and electric water heater Download PDFInfo
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- CN111351224A CN111351224A CN201811564169.4A CN201811564169A CN111351224A CN 111351224 A CN111351224 A CN 111351224A CN 201811564169 A CN201811564169 A CN 201811564169A CN 111351224 A CN111351224 A CN 111351224A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 230000003750 conditioning effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 11
- 238000013021 overheating Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention relates to the technical field of water heaters, and particularly discloses a power adjusting method of an electric water heater and the electric water heater, wherein the power adjusting method of the electric water heater particularly adjusts the heating power of the electric water heater according to the temperature of a power line and/or a power plug of the electric water heater. The electric water heater provided by the invention can adopt the power regulation method. The power regulating method of the electric water heater and the electric water heater provided by the invention can match the working power of the electric water heater with the electricity utilization environment of a user, and improve the use safety and the service life of the electric water heater.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a power adjusting method of an electric water heater and the electric water heater.
Background
The water heater is a device which can heat cold water into hot water with certain heat within a certain time range, is widely applied as a necessary electrical appliance for family life, and improves the convenience and comfort of living and daily life of people. The water heater can be divided into an electric water heater, a gas water heater, a solar water heater and the like according to different heating modes.
In the existing electric water heater, a heating pipe with nominal rated power is arranged in an inner container of the electric water heater, after a power line is inserted into a socket, 220V voltage of mains supply enters a heating circuit of the water heater, a relay is driven to be connected with the heating pipe in an attraction manner through rectification, voltage transformation, filtering, logic control and the like of a control circuit, and the heating pipe is electrified and heated to increase the temperature of water in the inner container.
The voltage of a heating pipe of the existing electric water heater fluctuates along with the voltage of a mains supply, the actual power of the heating pipe fluctuates, but if the current carrying capacity of a circuit in a user family is too small, the power of the heating pipe of the electric water heater is high, the power line and a power plug can work in an overload mode, the power line is heated and softened, the temperature of the power plug is too high, the problem of fire is caused, and the use safety of the electric water heater is not facilitated.
Disclosure of Invention
The invention aims to provide a power regulating method of an electric water heater, aiming at the electricity utilization environment of the electric water heater, the power of the electric water heater is regulated, the working power of the electric water heater is matched with the electricity utilization environment, and the use safety of the electric water heater is improved.
Another objective of the present invention is to provide an electric water heater, which matches the working power of the electric water heater with the electricity environment, and improves the safety of the electric water heater.
In order to achieve the purpose, the invention adopts the following technical scheme:
the power regulating method for electric water heater is characterized by that according to the temp. of power line and/or power plug of electric water heater the heating power of said electric water heater can be regulated.
Further, adjusting the heating power of the electric water heater according to the temperature of the power plug of the electric water heater specifically includes:
and under the current power gear, judging whether the temperature of the power plug is higher than a first preset temperature, if so, reducing the power gear, and updating the current power gear.
Further, before determining whether the temperature of the power plug is higher than a first preset temperature, the method further includes:
and judging whether the temperature of the power plug is higher than a second preset temperature, if so, disconnecting the heating circuit of the electric water heater, and if not, judging whether the temperature of the power plug is higher than a first preset temperature, wherein the second preset temperature is higher than the first preset temperature.
Further, after the heating circuit is disconnected, the temperature of the power plug is continuously detected, when the temperature of the power plug is lower than a third preset temperature, the heating circuit is closed, the power gear is reduced, and the current power gear is updated.
Further, adjusting the heating power according to the temperatures of the power cord and the power plug specifically includes:
and under the current power gear, judging whether the temperature of the power plug is lower than a first preset temperature and whether the temperature of the power line is lower than a fourth preset temperature, if not, reducing the power gear, and updating the current power gear.
And further, before the power gear is reduced, judging whether the power gear is the lowest power gear, if so, controlling an electric water heater to give an alarm, and if not, reducing the power gear and updating the current power gear.
Further, the power adjusting method further comprises: and detecting the heating temperature of the power plug by adopting a temperature sensor arranged in the power plug or an infrared thermometer arranged outside the power plug.
Further, the power adjusting method further comprises: and detecting the temperature of the live wire or the zero wire in the power line.
Further, the power adjusting method further comprises: and displaying the current power gear.
An electric water heater applies the power regulation method of the electric water heater.
The invention has the beneficial effects that:
the power regulating method of the electric water heater provided by the invention adjusts the heating power of the electric heater through the detection temperature of the power plug and/or the power line, can detect the temperature rise phenomenon of the power plug and/or the power line caused by current overload when the working current of the electric heater exceeds the load capacity of a user circuit, thereby adjusting the working power of the electric heater according to the detection temperature, matching the working power of the electric heater with the load capacity of the user circuit, reducing the problems of safety accidents caused by overload, overheating or electric fire and the like in the circuit as much as possible, and improving the use safety and the service life of the electric water heater.
The electric water heater provided by the invention can match the working power of the electric water heater with the electricity utilization environment of a user by adopting the power adjusting method, thereby improving the use safety and prolonging the service life of the electric water heater.
Drawings
Fig. 1 is a flowchart of a power regulation method of an electric water heater according to an embodiment of the present invention;
fig. 2 is a flowchart of a power adjusting method of an electric water heater according to a second embodiment of the present invention;
fig. 3 is a flowchart of a power adjustment method of an electric water heater according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a power adjustment method of an electric water heater provided by the present invention, and as shown in fig. 1, an embodiment of the present invention provides a power adjustment method for adjusting power of an electric water heater, so as to prevent reduction of safety performance of the electric water heater caused by excessive power of the electric water heater and excessive current carrying capacity of a user circuit, and improve safety performance of the electric water heater.
The power adjusting method provided by this embodiment mainly adjusts the heating power of the electric water heater according to the temperature of the power plug, as shown in fig. 1, the adjusting method specifically includes the following steps:
step S1: a detection and adjustment procedure is initiated.
When the power plug of the electric water heater is connected with the socket in an electrified way, the controller in the electric water heater controls the starting of the detection and adjustment program.
Step S2: and judging whether the temperature of the power plug is greater than a second preset temperature, if so, executing step S4, and if not, executing step S3.
The temperature of the power plug is detected and compared with a temperature value preset in the controller, so that the temperature of the power plug and the second preset temperature are judged.
The temperature of the power plug can be detected by arranging a temperature sensor inside the power plug, and two leads of the temperature sensor are merged into a power cord bundle. The detection of the temperature of the power plug can also be realized by carrying out non-contact detection on the temperature of the power plug through an external infrared thermometer and the like.
The second preset temperature is preferably set to be the melting point temperature of the inserting sheet of the power plug so as to prevent the power plug from melting due to overhigh temperature and causing dangers such as fire of the power plug and the like. The second preset temperature can also be lower than the melting point temperature of the inserting sheet in a safety factor setting mode.
In the present embodiment, the second predetermined temperature range is 110 ℃ to 130 ℃, and preferably 120 ℃. The second preset temperature can be specifically set according to the specific material of the power plug.
Step S3: and judging whether the temperature of the power plug is greater than a first preset temperature, if so, executing step S5, and if not, executing step S6.
The first temperature of predetermineeing can keep the temperature of normal work for power plug, and the setting of first predetermined temperature can prevent that power plug's operating temperature from continuously surpassing its normal temperature that bears and appearing power plug and destroy the scheduling problem, guarantees power plug's operation safety, improves power plug's life.
In the present embodiment, the first predetermined temperature is in the range of 70 ℃ to 90 ℃, and preferably 80 ℃. The first preset temperature can be specifically set according to the specific material of the power socket.
Step S4: and (5) cutting off the heating circuit of the electric heater, stopping heating the electric heater until the temperature of the power plug is lower than the third preset temperature and the time lower than the third preset temperature exceeds the preset time, restarting the heating circuit, and executing the step S6.
When the temperature of the power plug is too high, the heating circuit is powered off, the heating of the heating circuit is stopped, and the situation that the power plug melts due to the fact that the temperature of the power plug is continuously increased is prevented, so that use safety accidents are caused.
Because the high-temperature overheating of the power plug is probably caused by the fact that the current power is too large and exceeds the current-carrying capacity of a circuit, after the temperature of the power plug is reduced, the phenomenon of the high-temperature overheating of the power plug can be avoided to occur again in a mode of reducing power gears, so that the electric water heater can continue to operate and perform a normal heating function.
Step S5: the electric heater keeps the current power gear operating and step S9 is executed.
Step S6: and judging whether the current power gear is the lowest gear, if not, executing step S7, and if so, executing step S8.
The current power gear can be the gear where the rated power is located, and the adjusted power gear can also be used.
The electric water heater can be only provided with two power gears or can be provided with a plurality of power gears.
Different power gears can be adjusted through the number of heating pipes in the heating circuit.
Step S7: and reducing the power gear, and using the reduced power gear as the current power gear to work the electric water heater.
Step S8: the heating circuit is disconnected, and the controller controls the electric water heater to give an alarm.
Step S9: the electric water heater displays the current power gear.
In the embodiment, the heating power of the electric heater is adjusted through the detection temperature of the power plug, so that when the working current of the electric heater exceeds the load capacity of a user circuit, the temperature rise phenomenon of the power socket caused by current overload can be detected, the working power of the electric heater is adjusted according to the detection temperature, the working power of the electric heater is matched with the load capacity of the user circuit, the problem of safety accidents caused by overload, overheating or electric fire in the circuit is reduced as much as possible, and the use safety and the service life of the electric water heater are improved.
The embodiment also provides an electric water heater, and the power regulation method of the electric water heater is applied. The temperature sensor is arranged in the power plug of the electric water heater, and two leads of the temperature sensor are merged into a power cord bundle of the electric water heater and are connected with a control circuit in the electric water heater.
Example two
Fig. 2 is a flowchart of a power adjustment method of an electric water heater provided by the present invention, and as shown in fig. 2, an embodiment of the present invention provides a power adjustment method for adjusting power of an electric water heater, so as to prevent reduction of safety performance of the electric water heater caused by excessive power of the electric water heater and excessive current carrying capacity of a user circuit, and improve safety performance of the electric water heater.
As shown in fig. 2, compared with the first embodiment, the steps in the present embodiment are substantially the same as the first embodiment, except that the power of the electric heater is adjusted by detecting the temperature of the power plug, and the power of the electric heater is adjusted by detecting the temperature of the power cord, and the method for adjusting the power of the electric heater is substantially the same, and only the settings of the fourth preset temperature and the fifth preset temperature are different.
In this embodiment, the fourth preset temperature and the fifth preset temperature are preset based on the material of the power line, the power line includes a live wire, a ground wire and a zero line, and since the ground wire is grounded, the temperature rise is affected by the grounding and it is difficult to reflect the real current-carrying condition of the circuit, the temperature of the live wire or the zero line needs to be detected to adjust the power of the electric heater.
Taking the detection of a live wire as an example, the live wire can keep stable operation for a long time within 60 ℃, and safety accidents can be caused after the temperature exceeds 66 ℃. Therefore, the fourth preset temperature may be set to 60 ℃ and the fifth preset temperature may be set to 66 ℃.
Since the power adjustment method provided in this embodiment is basically the same as that in the first embodiment, detailed descriptions of each step are omitted in this embodiment.
In the embodiment, the heating temperature of the electric heater is adjusted through the detection temperature of the live wire or the zero wire in the power line, so that the working power of the electric heater is matched with the current load capacity of a user, the use safety of the electric water heater is improved, and the service life of the electric water heater is prolonged.
The embodiment also provides an electric water heater, and the power regulation method of the electric water heater is applied. The temperature sensor is arranged in the power plug of the electric water heater, and two leads of the temperature sensor are merged into a power cord bundle of the electric water heater and are connected with a control circuit in the electric water heater.
EXAMPLE III
Fig. 3 is a flowchart of a power adjusting method of an electric water heater according to the present invention, and as shown in fig. 3, the present embodiment provides a power adjusting method of an electric water heater, and compared with the first embodiment and the second embodiment, the power adjusting method provided by the present embodiment employs synchronous detection of temperatures of a power plug and a power line, and adjusts power by combining the temperatures of the power plug and the power line.
Specifically, as shown in fig. 3, the power adjustment method provided in this embodiment includes the following steps:
step S1: a detection and adjustment procedure is initiated.
Step S2: and judging whether the temperature of the power plug is lower than the second preset temperature and the temperature of the power line is lower than the fourth preset temperature, if not, executing the step S4, and if so, executing the step S3.
Step S3: and judging whether the temperature of the power plug is lower than the first preset temperature and the temperature of the power line is lower than the fifth preset temperature, if not, executing the step S5, and if so, executing the step S6.
Step S4: and (4) cutting off the heating circuit of the electric heater, stopping heating the electric heater until the temperature of the power plug and the temperature of the power cord are both lower than the third preset temperature and the time lower than the third preset temperature exceeds the preset time, restarting the heating circuit, and executing the step S6.
Step S5: the electric heater keeps the current power gear operating and step S9 is executed.
Step S6: and judging whether the current power gear is the lowest gear, if not, executing step S7, and if so, executing step S8.
Step S7: and reducing the power gear, and using the reduced power gear as the current power gear to work the electric water heater.
Step S8: the heating circuit is disconnected, and the controller controls the electric water heater to give an alarm.
Step S9: the electric water heater displays the power gear before work.
In this embodiment, the heating power of the electric heater is adjusted by detecting the temperature of the power plug and the power line, so that the probability of safety accidents caused by overload, overheating or electric fire in the circuit is further reduced by considering the use safety of the power plug and the power line, and the use safety and the service life of the electric water heater are improved.
The embodiment also provides an electric water heater, and the power regulation method of the electric water heater is applied. The temperature sensor is arranged in the power plug of the electric water heater, and two leads of the temperature sensor are merged into a power cord bundle of the electric water heater and are connected with a control circuit in the electric water heater.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A power regulating method of an electric water heater is characterized in that the heating power of the electric water heater is regulated according to the temperature of a power line and/or a power plug of the electric water heater.
2. The adjusting method according to claim 1, wherein adjusting the heating power of the electric water heater according to the temperature of the power plug of the electric water heater specifically comprises:
and under the current power gear, judging whether the temperature of the power plug is higher than a first preset temperature, if so, reducing the power gear, and updating the current power gear.
3. The power conditioning method of claim 2, further comprising, before determining whether the temperature of the power plug is greater than a first preset temperature:
and judging whether the temperature of the power plug is higher than a second preset temperature, if so, disconnecting the heating circuit of the electric water heater, and if not, judging whether the temperature of the power plug is higher than a first preset temperature, wherein the second preset temperature is higher than the first preset temperature.
4. The power regulating method according to claim 3, wherein after the heating circuit is opened, the temperature of the power plug is continuously detected, when the temperature of the power plug is lower than a third preset temperature, the heating circuit is closed, the power gear is reduced, and the current power gear is updated.
5. The power adjustment method according to claim 1, wherein adjusting the heating power according to the temperatures of the power cord and the power plug specifically comprises:
and under the current power gear, judging whether the temperature of the power plug is lower than a first preset temperature and whether the temperature of the power line is lower than a fourth preset temperature, if not, reducing the power gear, and updating the current power gear.
6. The power regulating method according to any one of claims 2, 4 or 5, characterized in that before the power gear is reduced, it is determined whether the power gear is the lowest power gear, if so, an electric water heater is controlled to alarm, if not, the power gear is reduced, and the current power gear is updated.
7. The power adjustment method of claim 1, further comprising: and detecting the temperature of the power plug by adopting a temperature sensor arranged in the power plug or an infrared thermometer arranged outside the power plug.
8. The power adjustment method of claim 1, further comprising: and detecting the temperature of the live wire or the zero wire in the power line.
9. The power adjustment method of claim 6, further comprising: and displaying the current power gear.
10. An electric water heater, characterized in that the power regulation method of the electric water heater according to any one of claims 1-9 is applied.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564169.4A CN111351224A (en) | 2018-12-20 | 2018-12-20 | Method for adjusting power of electric water heater and electric water heater |
| PCT/CN2019/093147 WO2020124978A1 (en) | 2018-12-20 | 2019-06-27 | Method for adjusting power of electric water heater, and electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811564169.4A CN111351224A (en) | 2018-12-20 | 2018-12-20 | Method for adjusting power of electric water heater and electric water heater |
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| Publication Number | Publication Date |
|---|---|
| CN111351224A true CN111351224A (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811564169.4A Pending CN111351224A (en) | 2018-12-20 | 2018-12-20 | Method for adjusting power of electric water heater and electric water heater |
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| Country | Link |
|---|---|
| CN (1) | CN111351224A (en) |
| WO (1) | WO2020124978A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665189A (en) * | 2019-10-16 | 2021-04-16 | 青岛经济技术开发区海尔热水器有限公司 | Heating control method and device of electric water heater and storage medium |
| CN112797632A (en) * | 2020-12-18 | 2021-05-14 | 青岛经济技术开发区海尔热水器有限公司 | Control method of electric water heater and electric water heater |
| EP4004447B1 (en) * | 2019-07-25 | 2024-05-08 | Straub Kg | Adjustment device and method for improved precision adjustment of a valve gap |
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| CN201964624U (en) * | 2011-03-15 | 2011-09-07 | 邱家斌 | Electric water heater |
| CN204438499U (en) * | 2015-02-12 | 2015-07-01 | 张正怡 | The electric heater of a kind of point of gear-type heating and keeping warm mode identification display |
| CN204535063U (en) * | 2015-03-24 | 2015-08-05 | 芜湖美的厨卫电器制造有限公司 | Electric heater |
| CN206353699U (en) * | 2016-12-20 | 2017-07-25 | 芜湖美的厨卫电器制造有限公司 | Electrical cord assembly and the electric heater with it |
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| CN203481790U (en) * | 2013-01-29 | 2014-03-12 | 海尔集团公司 | Device capable of preventing over high temperature of power line and electric appliance using the same |
| CN206973866U (en) * | 2017-05-17 | 2018-02-06 | 佛山市顺德区奥荣电器实业有限公司 | Intelligent control electric water heater |
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2018
- 2018-12-20 CN CN201811564169.4A patent/CN111351224A/en active Pending
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2019
- 2019-06-27 WO PCT/CN2019/093147 patent/WO2020124978A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201964624U (en) * | 2011-03-15 | 2011-09-07 | 邱家斌 | Electric water heater |
| CN204438499U (en) * | 2015-02-12 | 2015-07-01 | 张正怡 | The electric heater of a kind of point of gear-type heating and keeping warm mode identification display |
| CN204535063U (en) * | 2015-03-24 | 2015-08-05 | 芜湖美的厨卫电器制造有限公司 | Electric heater |
| CN206353699U (en) * | 2016-12-20 | 2017-07-25 | 芜湖美的厨卫电器制造有限公司 | Electrical cord assembly and the electric heater with it |
| CN208025861U (en) * | 2017-08-31 | 2018-10-30 | 武汉海尔热水器有限公司 | A kind of electric heater self-checking device |
| CN207166797U (en) * | 2017-09-13 | 2018-03-30 | 广东美的生活电器制造有限公司 | Safety protective circuit and household heating electrical equipment for household heating electrical equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4004447B1 (en) * | 2019-07-25 | 2024-05-08 | Straub Kg | Adjustment device and method for improved precision adjustment of a valve gap |
| CN112665189A (en) * | 2019-10-16 | 2021-04-16 | 青岛经济技术开发区海尔热水器有限公司 | Heating control method and device of electric water heater and storage medium |
| CN112797632A (en) * | 2020-12-18 | 2021-05-14 | 青岛经济技术开发区海尔热水器有限公司 | Control method of electric water heater and electric water heater |
Also Published As
| Publication number | Publication date |
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| WO2020124978A1 (en) | 2020-06-25 |
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Application publication date: 20200630 |