CN105783046A - Control method of liquid cooling heat dissipation system of household appliance - Google Patents
Control method of liquid cooling heat dissipation system of household appliance Download PDFInfo
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- CN105783046A CN105783046A CN201610171211.0A CN201610171211A CN105783046A CN 105783046 A CN105783046 A CN 105783046A CN 201610171211 A CN201610171211 A CN 201610171211A CN 105783046 A CN105783046 A CN 105783046A
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- 238000001816 cooling Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 55
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 230000017525 heat dissipation Effects 0.000 title abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 213
- 239000000110 cooling liquid Substances 0.000 claims abstract description 37
- 239000002826 coolant Substances 0.000 claims description 29
- 230000006698 induction Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000001934 delay Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a control method of a liquid cooling heat dissipation system of a household appliance, which comprises the following steps: the control unit acquires the temperature of at least one of the radiating fin and the wire coil through the temperature sensor and judges whether the acquired temperature value is greater than a first preset temperature value or not; if one temperature value is larger than the first preset temperature value, the control unit controls the water pump to start running at a first rotating speed so as to drive the cooling liquid in the water tank to start circulating in the cooling liquid circulating loop to take away heat of the wire coil and the radiating fin.
Description
Technical Field
The invention relates to a heat dissipation system, in particular to a control method of a liquid cooling heat dissipation system of a household appliance.
Background
The induction cooker is a cooking utensil widely used, wherein, the induction cooker can produce a large amount of heats in the use, and the heat dissipation mode commonly used has forced air cooling heat dissipation and water-cooling heat dissipation, and forced air cooling heat dissipation often adopts the fan to dispel the heat, nevertheless need set up air intake and air outlet on the induction cooker when adopting the fan heat dissipation, and this kind of water or debris are easily followed business turn over wind gap and are got into in the induction cooker, therefore, water-cooling heat dissipation gradually becomes a development trend.
Currently, patent (CN201335438Y) discloses a liquid cooling heat dissipation system for an induction cooker, which specifically includes (see fig. 1): the water heater comprises a metal water tank 1, a water pump 2, a water pipe 3, a radiator cover 5 and a radiator 6. Wherein, the surface of the water tank 1 is directly contacted with the air, and the outer side of the metal water tank 1 is provided with a water pump 2. The radiator 6 and the radiator cover 5 are sealed by screws and sealing rings to form a radiator part, and water flow channels 4 are arranged in the radiator 6 and the radiator cover 5. The metal water tank 1, the water pump 2, the radiator 6 and the radiator cover 5 are connected through a water pipe 3 to form a circulating liquid cooling system. When the radiator is used, the radiator 6 is lapped on the power consumption component 8 arranged on the circuit board 7, and the shape of the radiator can just cover the power consumption component 8, so that the radiator is convenient to radiate. Therefore, when the induction cooker works, the power consumption component 8 on the circuit board 7 generates high heat, the heat is transferred to the radiator 6 in direct contact with the heat, liquid in the water tank 1 is pumped into the radiator 6 by using the water pump 2, the heat transferred to the radiator 6 by the power consumption component 8 is carried into the water tank 1 through the flow channel of the radiator 6 and the flow channel of the radiator cover 5, and the heat is directly transferred into air dissipated by the heat because the water tank 1 is directly contacted with the air.
However, in the above liquid cooling system, once the induction cooker starts to work, the water pump 2 starts to pump the cooling liquid in the water tank 1 into the circulating liquid cooling system, and the water pump 2 is always in a working state during the working process of the induction cooker, so that on one hand, the water pump 2 also generates a certain amount of heat during the working process, which increases the amount of heat in the induction cooker, and on the other hand, the water pump 2 is always in a working state, which causes a certain amount of power consumption, which increases the power consumption during the use of the induction cooker.
Disclosure of Invention
In order to solve at least one problem that the power consumption is large in the heat dissipation process of a liquid cooling system of an induction cooker, the invention provides a control method of the liquid cooling heat dissipation system of a household appliance with low power consumption.
The invention provides a control method of a liquid cooling heat dissipation system of a household appliance, wherein the liquid cooling heat dissipation system comprises a control unit and a liquid cooling heat dissipation unit, and the liquid cooling heat dissipation unit comprises the following components: the cooling system comprises a water tank, at least one water pump, a temperature sensor, a cooling fin and a wire coil, wherein the temperature sensor is used for detecting the temperature of at least one of the cooling fin and the wire coil and sending the detected temperature value to a control unit, liquid circulation channels are arranged in the cooling fin and the wire coil, and the water tank, the water pump, the cooling fin and the wire coil form at least one cooling liquid circulation loop, and the cooling system comprises:
the control unit acquires the temperature of at least one of the radiating fin and the wire coil through the temperature sensor and judges whether the acquired temperature value is greater than a first preset temperature value or not;
if one temperature value is larger than the first preset temperature value, the control unit controls the water pump to start to operate at a first rotating speed so as to drive the cooling liquid in the water tank to start to circulate in the cooling liquid circulation loop to take away heat of the wire coil and the heat radiating fins.
Whether the obtained temperature value is larger than a first preset temperature value or not is judged through the control unit, when one temperature value is larger than the first preset temperature value, the control unit controls the water pump to start and operate at a first rotating speed, and when the obtained temperature value is smaller than the first preset temperature value, the water pump is in a non-working state.
Optionally, the method further includes: judging whether the obtained temperature value is greater than a second preset temperature value or not;
if one of the temperature values is greater than the second preset temperature value, the control unit controls the water pump to start and operate at a second rotating speed so as to accelerate the flow speed of the cooling liquid in the water tank in the cooling liquid circulation loop, wherein the second preset temperature value is greater than the first preset temperature value, and the second rotating speed is greater than the first rotating speed.
Through comparing the temperature value that will acquire with the second temperature value of predetermineeing, if one of them temperature value is greater than the second temperature value of predetermineeing, then control the water pump and start the operation with the second rotational speed, if the temperature value that acquires all is less than the second when predetermineeing the temperature value, then the water pump is with first rotational speed operation, so existing effectively reduced the consumption of water pump, simultaneously, make the coolant liquid in the liquid circulation passageway accelerate the circulation under the water pump effect when the temperature of drum and/or fin is higher like this, ensured that domestic appliance has good radiating effect.
Optionally, the method further includes:
and if any temperature value is smaller than the first preset temperature value, the control unit controls the water pump to stop running.
Any one acquired temperature value is smaller than a first preset temperature value, and the water pump is controlled to stop running, so that the problem of power consumption increase of the water pump is solved.
Optionally, when the coolant circulation loop includes a first coolant circulation loop and a second coolant circulation loop, and the first coolant circulation loop is formed by connecting a first water pump with the water tank, and the second coolant circulation loop is formed by connecting a second water pump with the water tank and the wire coil, the control unit obtains the temperature of at least one of the heat sink and the wire coil through the temperature sensor, and determines whether the obtained temperature value is greater than a first preset temperature value, including:
the control unit respectively acquires temperature values of the radiating fin and the wire coil through the temperature sensors and judges whether the temperature values of the radiating fin and the wire coil are larger than a first preset temperature value or not;
if one of the temperature values is greater than the first preset temperature value, the control unit controls the water pump to start and operate at a first rotating speed, and the method comprises the following steps:
if the temperature values of the radiating fins and the wire coil are both larger than the first preset temperature value, the control unit controls the first water pump and the second water pump to start and operate at the first rotating speed;
if the temperature value of the radiating fin is greater than the first preset temperature value and the temperature value of the wire coil is less than the first preset temperature value, the control unit controls the first water pump to start and operate at the first rotating speed and controls the second water pump to stop operating; or
If the temperature value of the wire coil is larger than the first preset temperature value, and the temperature value of the radiating fin is smaller than the first preset temperature value, the control unit controls the second water pump to start and operate at the first rotating speed, and controls the first water pump to stop operating.
When the temperature of the radiating fin is higher than a first preset temperature value, the first water pump is controlled to operate at the first rotating speed, when the temperature value of the wire coil is higher than the first preset temperature value, the second water pump is controlled to operate at the first rotating speed, and when the temperature of the wire coil or the radiating fin is lower than the first preset temperature value, the first water pump and the second water pump stop operating, so that the power consumption of the water pump in the radiating system is effectively reduced.
Optionally, if one of the temperature values is greater than the second preset temperature value, the control unit controls the water pump to start and operate at a second rotation speed, including:
if the temperature values of the radiating fins and the wire coil are both larger than the second preset temperature value, the control unit controls the first water pump and the second water pump to start and operate at the second rotating speed;
if the temperature value of the radiating fin is greater than the second preset temperature value, and the temperature value of the wire coil is less than the second preset temperature value and greater than the first preset temperature value, the control unit controls the first water pump to start and operate at the second rotating speed, and controls the second water pump to start and operate at the first rotating speed; or,
if the temperature value of the wire coil is greater than the second preset temperature value, the temperature value of the radiating fin is less than the second preset temperature value and greater than the first preset temperature value, the control unit controls the second water pump to start and operate at the second rotating speed, and controls the first water pump to start and operate at the first rotating speed.
Optionally, the method further includes:
if the temperature values of the radiating fin and the wire coil are smaller than the first preset temperature value, the control unit controls the first water pump and the second water pump to stop starting and running.
The invention also provides a control method of the liquid cooling heat dissipation system of the household appliance, the liquid cooling heat dissipation system comprises a control unit and a liquid cooling heat dissipation unit, wherein the liquid cooling heat dissipation unit comprises: the cooling device comprises a water tank, at least one water pump, a cooling fin and a wire coil, wherein liquid circulation channels are arranged in the cooling fin and the wire coil, and the water tank, the water pump, the cooling fin and the wire coil form at least one cooling liquid circulation loop, and the cooling device is characterized in that the control method comprises the following steps:
the control unit acquires the working time of the household appliance and judges whether the acquired working time is greater than a first preset time or not;
if the working time is judged to be longer than the first preset time, the control unit controls the water pump to start to operate at a first rotating speed so as to drive the cooling liquid in the water tank to start to circulate in the cooling liquid circulation loop to take away the heat of the wire coil and the heat radiating fins.
Through when operating time is greater than when first preset time, control water pump with first rotational speed operation, when operating time is less than first preset time, the water pump is in the stall state, has guaranteed like this that liquid cooling system has effectively reduced the consumption of water pump to make domestic appliance's consumption reduce when to domestic appliance's heat dissipation.
Optionally, the method further includes:
judging whether the obtained working time is greater than a second preset time or not;
and if the working time is judged to be greater than the second preset time, the control unit controls the water pump to start to operate at a second rotating speed so as to accelerate the flow speed of the cooling liquid in the water tank in the cooling liquid circulation loop, wherein the second preset time is greater than the first preset time, and the second rotating speed is greater than the first rotating speed.
When the working time is longer than the second preset time, the water pump is started to operate at the second rotating speed, and the cooling effect of the liquid cooling heat dissipation system on the household appliance is improved.
Optionally, if it is determined that the working time is greater than the first preset time, the control unit controls the water pump to start and operate at a first rotation speed, including:
if the working time is judged to be longer than the first preset time, judging whether the working power of the household appliance is larger than a preset power value or not;
if the working power of the household appliance is judged to be larger than the preset power value, the control unit controls the water pump to start and operate at a first rotating speed;
and if the working power of the household appliance is judged to be less than or equal to the preset power value, the control unit controls the water pump to start and operate at a first rotating speed according to a preset delay time delay, wherein the sum of the first preset time and the preset delay time is less than the second preset time.
The control unit controls the water pump to operate at the first rotating speed or the second rotating speed according to the working time and the working power, so that the power consumption of the water pump is reduced, and meanwhile, the liquid cooling heat dissipation system can dissipate heat of the household appliance more timely.
Optionally, the method further includes:
and if the working time is judged to be less than the first preset time, the control unit controls the water pump to stop running.
When the working time is less than the first preset time, the water pump is controlled to stop running, so that the power consumption of the water pump is greatly saved.
The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a conventional liquid-cooled heat dissipation system;
fig. 2 is a schematic flow chart of a first embodiment of a method for controlling a liquid-cooled heat dissipation system of a household appliance according to the present invention;
fig. 3A is a schematic structural diagram of a liquid-cooled heat dissipation system according to an embodiment of the present invention;
fig. 3B is a schematic structural diagram of a liquid-cooled heat dissipation system in an electromagnetic oven according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a first embodiment of a method for controlling a liquid-cooled heat dissipation system of a household appliance according to the present invention;
fig. 5 is a schematic flow chart of a second embodiment of the control method for a liquid-cooled heat dissipation system of a household appliance according to the present invention;
fig. 6 is a schematic structural diagram of a liquid-cooled heat dissipation system according to a second embodiment of the present invention;
fig. 7 is another schematic flow chart of a second embodiment of the method for controlling a liquid-cooled heat dissipation system of a household appliance according to the present invention;
fig. 8 is a schematic flow chart of a third embodiment of a method for controlling a liquid-cooled heat dissipation system of a household appliance according to the present invention;
fig. 9 is a schematic flow chart of a third embodiment of a method for controlling a liquid-cooled heat dissipation system of a household appliance according to the present invention;
fig. 10 is a schematic flow chart of a fourth method for controlling a liquid-cooled heat dissipation system of a household appliance according to an embodiment of the present invention.
Description of the labeling: a furnace body-20; a water tank-60; a circuit board-80; a wire coil-40; a heat sink-50; a first water pump-101; a second water pump-102; a water pump-100; a temperature sensor-501.
Detailed Description
Example one
Fig. 2 is a schematic flow chart of a first embodiment of a method for controlling a liquid-cooled heat dissipation system of a household appliance according to the present invention, fig. 3A is a schematic structural diagram of the liquid-cooled heat dissipation system in the first embodiment of the present invention, and fig. 3B is a schematic structural diagram of the liquid-cooled heat dissipation system in an electromagnetic oven in the first embodiment of the present invention; the liquid-cooling heat dissipation system provided by the invention can be particularly applied to household appliances such as induction cookers (as shown in fig. 3B) and electric ovens, and is mainly used for dissipating heat of the household appliances, wherein in the embodiment, the liquid-cooling heat dissipation system comprises a control unit (not shown) and a liquid-cooling heat dissipation unit, and as shown in fig. 3, the liquid-cooling heat dissipation unit comprises: the cooling system comprises a water tank 60, at least one water pump 100, temperature sensors 501, a heat sink 50 and a wire coil 40, wherein the temperature sensors 501 are used for detecting the temperature of at least one of the heat sink 50 and the wire coil 40 and sending the detected temperature value to a control unit, specifically, the number of the temperature sensors 501 can be one or two, and the temperature sensors 501 can be arranged on the heat sink 50 or the wire coil 40, in this embodiment, liquid circulation channels are arranged in the heat sink 50 and the wire coil 40, and the water tank 60, the water pump 100, the heat sink 50 and the wire coil 40 form at least one cooling liquid circulation loop, in this embodiment, the control unit can be arranged on a circuit board 80 of a household appliance, and the control unit is electrically connected with the water pump 100 and the temperature sensors 501, wherein, in order to reduce the power consumption of the water pump in the liquid cooling system and avoid the extra heat generated by the water pump in a working state, in this embodiment, the specific control method includes the following steps:
step 101, the control unit obtains the temperature of at least one of the radiating fin and the wire coil through the temperature sensor, and judges whether the obtained temperature value is greater than a first preset temperature value.
In this embodiment, the control unit may only obtain the temperature of the heat sink 50 through the temperature sensor 501, or only obtain the temperature of the wire coil 40, or obtain both the temperature of the heat sink 50 and the temperature of the wire coil 40 (i.e., obtain two temperature values), and after the control unit obtains the temperature values, it may be determined whether the obtained temperature values are greater than a first preset temperature value, where in this embodiment, the first preset temperature value may be 30 °, that is, it may be determined whether the obtained temperature values are greater than 30 °, it should be noted that when the control unit obtains the two temperature values (the temperature values of the heat sink and the wire coil), both the two temperature values and the first preset temperature value are determined.
In this embodiment, when the control unit obtains the temperature of at least one of the heat sink and the wire coil through the temperature sensor 501, the control unit may specifically obtain the temperature of at least one of the heat sink and the wire coil in real time, or obtain the temperature of at least one of the heat sink and the wire coil according to a certain time period.
In this embodiment, specifically, if only one temperature value is obtained, it is directly determined whether the obtained temperature value is greater than a first preset temperature value, if two temperature values are obtained, it is determined whether one of the two temperature values is greater than the first preset temperature value, and if one of the two temperature values is greater than the first preset temperature value, step 102 is started to be executed.
And 102, if one temperature value is larger than a first preset temperature value, the control unit controls the water pump to start to operate at a first rotating speed so as to drive the cooling liquid in the water tank to start to circulate in the cooling liquid circulation loop to take away heat of the wire coil and the heat radiating fins.
In this embodiment, if one of the obtained temperatures is greater than a first preset temperature value, the control unit controls the water pump 100 to start operation at a first rotation speed, that is, when the temperature values of the wire coil 40 and the heat sink 50 are both obtained, and if one of the temperature values of the wire coil 40 and the heat sink 50 is greater than 30 °, the water pump 100 starts operation, wherein when one of the two temperature values is greater than the first preset temperature value, the other temperature value may be greater than the first preset temperature value, or may be smaller than the first preset temperature value, as shown in fig. 3, when the water pump 100 starts operation, the coolant in the water tank 60 enters the liquid circulation channels in the heat sink 50 and the wire coil 40 under the pumping action of the water pump 100, and flows into the water tank 60 after the coolant cools the wire coil 40 and the heat sink 50, that is, the coolant in the coolant circulation loop starts circulation under the action of the water pump 100, thereby removing heat generated from the wire coil 40 and the heat sink 50. In this embodiment, the first rotation speed may be specifically 2/3 of the full speed of the water pump 100, that is, the water pump 100 starts to operate but does not operate at the full speed, so that the heat dissipation effect on the wire coil 40 and the heat dissipation fins 50 can be achieved, and meanwhile, the power consumption is low and the generated noise is small.
When one temperature value (namely, the temperature value of the wire coil 40 or the heat sink 50) is acquired and is smaller than a first preset temperature, or when both the acquired temperature values (the temperatures of the wire coil 40 and the heat sink 50) are smaller than the first preset temperature value, namely, any one acquired temperature value is smaller than the first preset temperature value, the control unit controls the water pump 100 to stop running, namely, the water pump 100 does not work, and at the moment, the cooling liquid in the cooling liquid circulation loop does not flow.
In this embodiment, the control unit controls the water pump 100 to start and operate at the first rotation speed when the obtained temperature value is greater than the first preset value, and controls the water pump 100 to stop operating when the obtained temperature value is less than the first preset value, so that the power consumption of the water pump 100 is reduced, and the power consumption of the household appliance is reduced.
Further, after step 102, as the heat generated by the household appliance increases, the temperature of the wire coil 40 or the heat sink 50 continuously rises, so that the obtained temperature needs to be continuously determined again, fig. 4 is another schematic flow chart of the first embodiment of the control method for the liquid-cooled heat dissipation system of the household appliance of the present invention, and as shown in fig. 4, the method specifically includes the following steps:
and 103, judging whether the acquired temperature value is greater than a second preset temperature value.
In this embodiment, after the water pump 100 is started and operated at the first rotation speed, the cooling liquid in the cooling liquid circulation loop dissipates heat of the wire coil 40 and the heat dissipation fins 50, but as the household appliance works for a long time, more heat is generated, the temperature of the wire coil 40 continuously rises, and at this time, the control unit judges the temperature value acquired in real time or in a certain period and the second preset temperature value, and judges whether the acquired temperature value is greater than the second preset temperature value.
Specifically, if only one temperature value (i.e., the temperature of the wire coil 40 or the heat sink 50) is obtained, it is directly determined whether the obtained temperature value is greater than a second preset temperature value, if two temperature values are obtained, it is determined whether one of the two temperature values is greater than the second preset temperature value, and if one of the obtained temperature values is greater than the second preset temperature value, step 104 is executed.
And step 104, if one of the temperature values is greater than a second preset temperature value, the control unit controls the water pump to start and operate at a second rotating speed so as to accelerate the flow rate of the cooling liquid in the water tank in the cooling liquid circulation loop.
In this embodiment, if it is determined that the obtained temperature value (the temperature of the wire coil 40 or the heat sink 50) is greater than the second preset temperature value, or one of the two obtained temperature values is greater than the first preset temperature value, that is, as long as one of the two obtained temperature values is greater than the second preset temperature value, the control unit controls the water pump 100 to start to operate at the second rotation speed, where the second preset temperature value is greater than the first preset temperature value, and the second preset temperature value may specifically be 50 °, for example, if the temperature value of the wire coil 40 is greater than 50 °, or the temperature value of the heat sink 50 is greater than 50 °, or one of the temperature value of the wire coil 40 and the heat sink 50 is greater than 50 °, the water pump 100 operates at the second rotation speed, which is greater than the first rotation speed, where the second rotation speed may be full speed, that is, and the.
It should be noted that, if the obtained temperature value is greater than the first preset temperature value but less than the second preset temperature value, the water pump still operates at the first rotation speed, that is, step 103 does not need to be executed after step 104, step 102 may be executed, step 102 does not need to be executed after step 102, step 101 and step 103 may be executed simultaneously, and then step 102 or step 104 is executed according to the situation, or step 101 and step 102 may also be executed after step 104 is executed.
In this embodiment, when one of the temperature values of the wire coil 40 and the heat sink 50 is greater than 30 °, the water pump 100 operates at a first rotation speed, and when one of the temperature values of the wire coil 40 and the heat sink 50 is greater than 50 °, the water pump 100 operates at a second rotation speed, where the first rotation speed is less than the second rotation speed, so that the power consumption of the water pump 100 is reduced.
Example two
Fig. 5 is a schematic flow diagram of a second embodiment of a method for controlling a liquid-cooled heat dissipation system according to the present invention, and fig. 6 is a schematic structural diagram of the liquid-cooled heat dissipation system according to the second embodiment of the present invention, in this embodiment, as shown in fig. 6, when a coolant circulation loop includes a first coolant circulation loop and a second coolant circulation loop, the first coolant circulation loop is formed by connecting a first water pump 101, a water tank 60, and a heat sink 50, and the second coolant circulation loop is formed by connecting a second water pump 102, the water tank 60, and a wire coil 40, as shown in fig. 5, the method for controlling a liquid-cooled heat dissipation system includes the following steps:
step 201, the control unit respectively obtains temperature values of the radiating fin and the wire coil through the temperature sensor, and judges whether the temperature values of the radiating fin and the wire coil are larger than a first preset temperature value.
In this embodiment, since the wire coil 40 and the heat sink 50 are located on different coolant circulation loops, wherein the heat sink 50 is used for dissipating heat from the circuit board 80 in the household appliance, in order to ensure that heat on the wire coil 40 and the heat sink 50 is taken away in time, in this embodiment, the control unit obtains temperature values of the wire coil 40 and the heat sink 50 respectively, specifically, the temperature sensor 501 may be arranged on the wire coil 40, and the temperature sensor 501 may also be arranged on the heat sink 50, so that the control unit may obtain temperatures of the wire coil 40 and the heat sink 50 at the same time.
It should be noted that, when the step 201 is executed, if the temperatures of the heat sink 50 and the wire coil 40 are both greater than the first preset temperature value, the step 202a is executed, if the temperature of the heat sink 50 is greater than the first preset temperature value, and the temperature of the wire coil 40 is less than the first preset temperature value, the step 202b is executed, and if the temperature of the wire coil 40 is greater than the first preset temperature value, and the temperature of the heat sink 50 is less than the first preset temperature value, the step 202c is executed.
Step 202a, if the temperature values of the radiating fins and the wire coil are both larger than a first preset temperature value, the control unit controls the first water pump and the second water pump to start and operate at a first rotating speed.
In this embodiment, if the temperatures of the heat sink 50 and the wire coil 40 are both greater than the first preset temperature value, the control unit controls the first water pump 101 and the second water pump 102 to start operating at the first rotation speed, so that the coolant in the first coolant circulation loop and the second coolant circulation loop starts to circulate under the pumping action of the first water pump 101 and the second water pump 102, and the temperatures of the wire coil 40 and the heat sink 50 are reduced.
Step 202b, if the temperature value of the radiating fin is larger than a first preset temperature value and the temperature value of the wire coil is smaller than the first preset temperature value, the control unit controls the first water pump to start and operate at a first rotating speed and controls the second water pump to stop operating.
In this embodiment, since the first coolant circulation loop and the second coolant circulation loop are independent loops, when the temperature value of the heat sink is greater than the first preset temperature value, the control unit controls the first water pump 101 to operate at the first rotation speed, so that the first coolant circulation loop starts to circulate. Because the temperature value of drum 40 is less than first preset temperature value, the temperature of drum 40 is lower promptly, need not advance the heat dissipation, consequently, the control unit control second water pump 102 stop the operation, and second water pump 102 is in unoperated state. Therefore, the problem that when one temperature value is larger than the first preset temperature, the two water pumps run at the first rotating speed to cause power consumption rise is solved.
Step 202c, if the temperature value of the wire coil is larger than a first preset temperature value and the temperature value of the radiating fin is smaller than the first preset temperature value, the control unit controls the second water pump to start and operate at a first rotating speed and controls the first water pump to stop operating.
In this embodiment, when the temperature of the wire coil 40 is greater than a first preset temperature value, the second water pump 102 is controlled to start and operate at a first rotation speed, and when the temperature of the heat sink 50 is less than the first preset temperature value, the first water pump 101 is controlled to stop operating.
In this embodiment, since the wire coil 40 generates a large amount of heat during the use process, in order to quickly take away the heat generated by the wire coil 40, the control unit may control the second water pump 102 to operate at a rotation speed greater than the first rotation speed but less than the second rotation speed.
After step 201 is executed, if the temperature values of the heat sink 50 and the wire coil 40 are both less than a first preset temperature value, the method further includes the steps of: the control unit controls the first water pump 101 and the second water pump 102 to stop starting operation.
Fig. 7 is a schematic flow chart of a second embodiment of the method for controlling a liquid-cooled heat dissipation system of a household appliance according to the present invention, and further, as the operation time of the household appliance increases and the temperature of the cooling liquid increases, the temperature of the wire coil 40 and the heat dissipation plate 50 continuously increases, and at this time, after step 202a, step 202b, or step 202c, as shown in fig. 7, the method further includes the following steps:
and 203, judging whether the temperature values of the radiating fins and the wire coil are larger than a second preset temperature value by the control unit.
In this embodiment, the control unit determines whether the temperature values of the heat sink 50 and the wire coil 40 are greater than a second preset temperature value, if the temperatures of the heat sink 50 and the wire coil 40 are both greater than the second preset temperature value, step 204a is executed, if the temperature of the heat sink 50 is greater than the second preset temperature value, the temperature of the wire coil 40 is less than the second preset temperature value but greater than the first preset temperature value, step 204b is executed, and if the temperature of the wire coil 40 is greater than the second preset temperature value, the temperature of the heat sink 50 is less than the second preset temperature value but greater than the first preset temperature value, step 204c is executed.
And 204a, if the temperature values of the radiating fins and the wire coil are both larger than a second preset temperature value, controlling the first water pump and the second water pump to start and operate at a second rotating speed by the control unit.
And 204b, if the temperature value of the radiating fin is greater than a second preset temperature value, and the temperature value of the wire coil is less than the second preset temperature value and greater than a first preset temperature value, controlling the first water pump to start and operate at a second rotating speed and controlling the second water pump to start and operate at a first rotating speed by the control unit.
And 204c, if the temperature value of the wire coil is greater than a second preset temperature value, and the temperature value of the radiating fin is less than the second preset temperature value and greater than a first preset temperature value, controlling the second water pump to start and operate at a second rotating speed and controlling the first water pump to start and operate at a first rotating speed by the control unit.
When step 203 is executed, if the temperature values of the wire coil 40 and the heat sink 50 are both less than the second preset temperature value and greater than the first preset temperature value, the control unit controls the wire coil 40 and the heat sink 50 to start and operate at the first rotation speed.
It should be noted that, the execution sequence of the steps 201-204c may refer to the execution sequence of the steps 101-104 described in the foregoing embodiment, which is not described in detail in this embodiment.
EXAMPLE III
Fig. 8 is a schematic flow chart of a third embodiment of a method for controlling a liquid-cooled heat dissipation system of a household appliance according to the present invention, where in this embodiment, the structure of the liquid-cooled heat dissipation system may be as shown in fig. 3 or fig. 6, but in this embodiment, the liquid-cooled heat dissipation system does not need to detect a temperature, and therefore does not include a temperature sensor 501, and in this embodiment, the method includes the following steps:
step 301, the control unit obtains the working time of the household appliance and judges whether the obtained working time is greater than a first preset time.
In this embodiment, when the control unit obtains the operating time of the household appliance, the operating time of the household appliance may be obtained by a timer disposed in the household appliance, and the first preset time is set as the first preset time according to the corresponding operating time when the temperature of the heating element reaches a certain temperature when the heating element starts to operate in the household appliance, so that when the household appliance operates in a certain function mode, the corresponding operating time when the temperature of the heating element reaches a certain temperature may be different because the operating power of the heating element corresponding to each function mode is different, so that the number of the first preset times may be multiple, and each first preset time corresponds to one operating power, so that when the control unit obtains the operating time of the household appliance, the operating power when the household appliance operates needs to be obtained, and the corresponding first preset time is found according to the operating power, and then judging whether the working time is greater than a first preset time.
And 302, if the working time is judged to be longer than the first preset time, the control unit controls the water pump to start to operate at a first rotating speed so as to drive the cooling liquid in the water tank to start to circulate in the cooling liquid circulation loop to take away heat of the wire coil and the heat radiating fins.
In this embodiment, if the working time is longer than the first preset time, the control unit controls the water pump to start to operate at the first rotation speed, and the coolant in the water tank starts to circulate in the coolant circulation loop under the action of the water pump 100 to take away the heat of the wire coil 40 and the heat sink 50.
If the working time is judged to be less than the first preset time, the method further comprises the following steps: the control unit controls the water pump 100 to stop operating.
Fig. 9 is a schematic flow chart of a third embodiment of a method for controlling a liquid-cooled heat dissipation system of a household appliance according to the present invention, and further, as the working time of the household appliance increases, the heat in the household appliance continuously rises, and it is necessary to accelerate cooling of the household appliance, so in this embodiment, after step 302, as shown in fig. 9, the method further includes the following steps:
and step 303, judging whether the obtained working time is greater than a second preset time.
In this embodiment, if the operating time of the household appliance is determined to be greater than the second preset time, step 304 is executed.
And step 304, if the working time is judged to be greater than the second preset time, the control unit controls the water pump to start and operate at a second rotating speed so as to accelerate the flow speed of the cooling liquid in the water tank in the cooling liquid circulation loop.
In this embodiment, when the operating time is longer than the second preset time, in order to ensure a good heat dissipation effect of the household appliance, the control unit controls the water pump 100 to start to operate at the second rotation speed, where the second rotation speed is greater than the first rotation speed, that is, the water pump 100 operates at a faster rotation speed, in this embodiment, the first rotation speed may be 2/3 of the full speed of the water pump 100, and the second rotation speed may be the full speed.
Example four
On the basis of the second embodiment, in this embodiment, the control method includes the following steps:
step 401, judging whether the obtained working time is greater than a first preset time.
In this embodiment, the first preset time is pre-stored in the control unit, and in this embodiment, the plurality of operating powers of the household appliance may correspond to only one preset time, that is, the number of the first preset time is one. If the working time is greater than the first preset time, step 402 is executed.
Step 402, if the working time is greater than the first preset time, determining whether the working power of the household appliance is greater than a preset power value.
In this embodiment, since the working powers of the home appliances in different functional modes are different, when the working time is longer than the first preset time, it is further determined whether the working power corresponding to the working of the home appliance is larger than a preset power value, and the preset power value may specifically be an average value of a plurality of working powers of the home appliance, for example, the working power corresponding to the water boiling mode is 2000W, the working power corresponding to the steaming mode is 1000W, the preset power value may be set to 1500W, when the working time is longer than the first preset time, and the working power is also larger than 1500W, step 403a is executed, otherwise, step 403b is executed.
And 403a, if the working power of the household appliance is judged to be larger than the preset power value, controlling the water pump to start to operate at a first rotating speed by the control unit.
And 403b, if the working power of the household appliance is judged to be less than or equal to the preset power value, the control unit controls the water pump to start and operate at the first rotating speed according to the preset delay time delay.
In this embodiment, when the power of the household appliance is less than or equal to the preset power, the control unit delays for a certain time and then controls the water pump 100 to start and operate at the first rotation speed, wherein a sum of the first preset time and the preset delay time is less than a second preset time, for example, if the first preset time is 8min and the second preset time is 15min, the preset delay time may be set to 2min, that is, when the working time is greater than the first preset time, and if the working power is less than or equal to the preset power value, the control unit delays for 2min and then controls the water pump 100 to start and operate at the first rotation speed.
It should be noted that, in this embodiment, the working time and the working power may also be determined simultaneously, so that when the working time is greater than the first preset time and the working power is greater than the preset power value, the water pump 100 is controlled to start and operate at the first rotation speed, and when the working time is greater than the first preset time and the working power is less than the preset power value, the control unit delays the start and the operation of the water pump 100 at the first rotation speed on the basis that the working time is greater than the first preset time and the working power is less than the preset power value.
When the working time is judged to be greater than the second preset time, the working power can also be judged, if the working time is greater than the second preset time and the working power is also greater than the preset power value, the water pump is controlled to start to operate at the second rotating speed, and if the working time is greater than the second preset time and the working power is less than the preset power value, the control unit delays to control the water pump to operate at the second rotating speed, wherein it needs to be stated that the working power of the household appliance specifically refers to the corresponding power when the household appliance is in operation.
In this embodiment, the control unit controls the water pump 100 to operate at the first rotation speed or the second rotation speed according to the operating time and the operating power, so as to reduce the power consumption of the water pump, and ensure that the liquid cooling heat dissipation system can dissipate heat of the household appliance more timely.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a control method of domestic appliance liquid cooling system, liquid cooling system includes the control unit and liquid cooling radiating element, wherein, liquid cooling radiating element includes: the cooling system comprises a water tank (60), at least one water pump (100), a temperature sensor (501), a cooling fin (50) and a wire coil (40), wherein the temperature sensor (501) is used for detecting the temperature of at least one of the cooling fin (50) and the wire coil (40) and sending the detected temperature value to the control unit, liquid circulation channels are arranged in the cooling fin (50) and the wire coil (40), and the water tank (60), the water pump (100), the cooling fin (50) and the wire coil (40) form at least one cooling liquid circulation loop, and the cooling system is characterized by comprising:
the control unit acquires the temperature of at least one of the radiating fin (50) and the wire coil (40) through the temperature sensor (501), and judges whether the acquired temperature value is greater than a first preset temperature value or not;
if one temperature value is larger than the first preset temperature value, the control unit controls the water pump (100) to start running at a first rotating speed so as to drive the cooling liquid in the water tank (60) to start circulating in the cooling liquid circulating loop to take away heat of the wire coil (40) and the heat radiating fins (50).
2. The control method according to claim 1, characterized by further comprising:
judging whether the obtained temperature value is greater than a second preset temperature value or not;
if one of the temperature values is greater than the second preset temperature value, the control unit controls the water pump (100) to start and operate at a second rotating speed so as to accelerate the flow rate of the cooling liquid in the water tank (60) in the cooling liquid circulation loop, wherein the second preset temperature value is greater than the first preset temperature value, and the second rotating speed is greater than the first rotating speed.
3. The control method according to claim 2, characterized by further comprising:
if any temperature value is smaller than the first preset temperature value, the control unit controls the water pump (100) to stop running.
4. The control method according to claim 2, wherein when the coolant circulation circuit includes a first coolant circulation circuit and a second coolant circulation circuit, the first coolant circulation circuit is formed by connecting a first water pump (101), the water tank (60) and the heat sink (50), and the second coolant circulation circuit is formed by connecting a second water pump (102), the water tank (60) and the wire coil (40), the control unit obtains the temperature of at least one of the heat sink (50) and the wire coil (40) through the temperature sensor (510), and determines whether the obtained temperature value is greater than a first preset temperature value, the method includes:
the control unit respectively acquires temperature values of the radiating fin (50) and the wire coil (40) through the temperature sensor (501), and judges whether the temperature values of the radiating fin (50) and the wire coil (40) are larger than a first preset temperature value or not;
if one of the temperature values is greater than the first preset temperature value, the control unit controls the water pump to start and operate at a first rotating speed, and the method comprises the following steps:
if the temperature values of the radiating fins (50) and the wire coil (40) are both greater than the first preset temperature value, the control unit controls the first water pump (101) and the second water pump (102) to start and operate at the first rotating speed;
if the temperature value of the radiating fin (50) is greater than the first preset temperature value, and the temperature value of the wire coil (40) is less than the first preset temperature value, the control unit controls the first water pump (101) to start and operate at the first rotating speed, and controls the second water pump (102) to stop operating; or,
if the temperature value of the wire coil (40) is greater than the first preset temperature value, and the temperature value of the radiating fin (50) is less than the first preset temperature value, the control unit controls the second water pump (102) to start and operate at the first rotating speed, and controls the first water pump (101) to stop operating.
5. The control method according to claim 4, wherein if one of the temperature values is greater than the second preset temperature value, the control unit controls the water pump to start operating at a second rotation speed, and the method comprises:
if the temperature values of the radiating fins (50) and the wire coil (40) are both greater than the second preset temperature value, the control unit controls the first water pump (101) and the second water pump (102) to start and operate at the second rotating speed;
if the temperature value of the radiating fin (50) is greater than the second preset temperature value, and the temperature value of the wire coil (40) is less than the second preset temperature value and greater than the first preset temperature value, the control unit controls the first water pump (101) to start and operate at the second rotating speed, and controls the second water pump (102) to start and operate at the first rotating speed; or
If the temperature value of drum (40) is greater than the second preset temperature value, the temperature value of fin (50) is less than the second preset temperature value and is greater than first preset temperature value, then the control unit control second water pump (102) with the second rotational speed starts the operation, control first water pump (101) with first rotational speed starts the operation.
6. The control method according to claim 4 or 5, characterized by further comprising:
if the temperature values of the radiating fin (50) and the wire coil (40) are smaller than the first preset temperature value, the control unit controls the first water pump (101) and the second water pump (102) to stop starting and running.
7. The utility model provides a control method of domestic appliance liquid cooling system, liquid cooling system includes the control unit and liquid cooling radiating element, wherein, liquid cooling radiating element includes: the cooling system comprises a water tank (60), at least one water pump (100), a cooling fin (50) and a wire coil (40), wherein liquid circulation channels are arranged in the cooling fin (50) and the wire coil (40), and the water tank (60), the water pump (100), the cooling fin (50) and the wire coil (40) form at least one cooling liquid circulation loop, and the cooling system is characterized in that the control method comprises the following steps:
the control unit acquires the working time of the household appliance and judges whether the acquired working time is greater than a first preset time or not;
if the working time is judged to be longer than the first preset time, the control unit controls the water pump (100) to start to operate at a first rotating speed so as to drive the cooling liquid in the water tank (60) to start to circulate in the cooling liquid circulation loop to take away the heat of the wire coil (40) and the heat radiating fins (50).
8. The control method according to claim 7, characterized by further comprising:
judging whether the obtained working time is greater than a second preset time or not;
if the working time is judged to be greater than the second preset time, the control unit controls the water pump (100) to start to operate at a second rotating speed so as to accelerate the flow rate of the cooling liquid in the water tank (60) in the cooling liquid circulation loop, wherein the second preset time is greater than the first preset time, and the second rotating speed is greater than the first rotating speed.
9. The control method according to claim 8, wherein if the operating time is determined to be greater than the first preset time, the controlling unit controls the water pump (100) to start running at a first rotation speed, and the method comprises:
if the working time is judged to be longer than the first preset time, judging whether the working power of the household appliance is larger than a preset power value or not;
if the working power of the household appliance is judged to be larger than the preset power value, the control unit controls the water pump (100) to start and operate at a first rotating speed;
if the working power of the household appliance is judged to be less than or equal to the preset power value, the control unit controls the water pump (100) to start and operate at a first rotating speed according to a preset delay time delay, wherein the sum of the first preset time and the preset delay time is less than the second preset time.
10. The control method according to claim 7, characterized by further comprising:
and if the working time is judged to be less than the first preset time, the control unit controls the water pump to stop running.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610171211.0A CN105783046A (en) | 2016-03-23 | 2016-03-23 | Control method of liquid cooling heat dissipation system of household appliance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610171211.0A CN105783046A (en) | 2016-03-23 | 2016-03-23 | Control method of liquid cooling heat dissipation system of household appliance |
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| CN112072857A (en) * | 2020-08-10 | 2020-12-11 | 北京汽车股份有限公司 | New energy automobile motor cooling system control method and device and new energy automobile |
| CN113202347A (en) * | 2021-04-28 | 2021-08-03 | 德施曼机电（中国）有限公司 | Intelligent door with automatic cooling function |
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