CN112930082A - Heat dissipation device and heat dissipation method for control panel of range hood - Google Patents
Heat dissipation device and heat dissipation method for control panel of range hood Download PDFInfo
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- CN112930082A CN112930082A CN202110077392.1A CN202110077392A CN112930082A CN 112930082 A CN112930082 A CN 112930082A CN 202110077392 A CN202110077392 A CN 202110077392A CN 112930082 A CN112930082 A CN 112930082A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20281—Thermal management, e.g. liquid flow control
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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
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20254—Cold plates transferring heat from heat source to coolant
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention relates to a heat dissipation device for a control panel of a range hood, which comprises a heat radiator, a power module and a power module, wherein the heat radiator is arranged in an electrical box and attached to the power module of the control panel; the water pipe is arranged in the electrical appliance box and embedded in the radiator; the water pump is arranged outside the electric appliance box, and the outlet of the water pump is connected with the water inlet of the water pipe; the valve body is arranged outside the electric appliance box, a first connecting port of the valve body is connected with a water outlet of the water pipe, and a second connecting port of the valve body is connected with a water return port of the water pump. The heat dissipation efficiency of the control panel heat dissipation device of the range hood can be improved. The invention also relates to a heat dissipation method of the heat dissipation device for the control panel of the range hood, wherein when a fan in the range hood works, the rotating speed of the water pump is controlled according to the working parameters of the fan, water is pumped into the water pipe, and the heat dissipation is carried out on the power module of the control panel of the range hood by using the heat radiator and the water flow in the water pipe. The method can accelerate the heat dissipation speed.
Description
Technical Field
The invention relates to a heat dissipation device for a control panel of a range hood and also relates to a heat dissipation method for the control panel of the range hood.
Background
The range hood is usually provided with a control panel to realize the control of the range hood, and in order to ensure the reliable work of the control panel, the range hood is usually provided with an electrical box with an independent closed space for a user to install and set the control panel so as to ensure the control panel to prevent the interference of oil smoke and water vapor. The control board is usually provided with an IPM module (intelligent power module), which is the most heat-generating component on the control board. When the range hood operates, the fan operation current in the range hood is increased along with the increase of the fan air volume, so that the IPM module generates heat more seriously, and the IPM heat dissipation becomes a large factor restricting the performance improvement of the range hood. The heat dissipation of the current control panel is that a metal radiator is tightly attached to the upper side of the IPM, and the heat dissipation area of the air is increased by using the radiator to accelerate the heat dissipation of the IPM module. Therefore, the heat dissipation of the control board is determined to be achieved only by the radiator for dissipating heat of air, the area of the IPM module on the control board is fixed, the contact area of the IPM module and the radiator is not adjustable, and the heat dissipation rate depends on the area of the radiator and the temperature difference between the IPM and the radiator. The larger the area is, the larger the temperature difference is, and the higher the heat dissipation efficiency is. However, it is very difficult to increase the area of the heat sink due to the layout of the components on the control board. And because the control panel sets up in airtight electrical apparatus box, also make radiator and air radiating efficiency can descend. In the prior art, the IPM module on the control panel has limited heat dissipation efficiency and cannot meet the working operation in a higher power mode.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a heat dissipation device for a control panel of a range hood, which can improve the heat dissipation efficiency.
The second technical problem to be solved by the present invention is to provide a method for dissipating heat from a control panel of a range hood, which can accelerate the heat dissipation speed, in view of the above prior art.
The third technical problem to be solved by the present invention is to provide a method for dissipating heat from a control panel of a range hood, which can further ensure reasonable power consumption of the range hood and meet the requirement of long-time normal operation of the range hood, in view of the above prior art.
The fourth technical problem to be solved by the present invention is to provide a heat dissipation method for a control panel of a range hood, which can further ensure a reasonable noise index, for the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a range hood control panel heat abstractor which characterized in that: comprises that
The radiator is arranged in the electric appliance box and attached to the power module of the control panel;
the water pipe is arranged in the electrical appliance box and embedded in the radiator;
the water pump is arranged outside the electric appliance box, and the outlet of the water pump is connected with the water inlet of the water pipe;
the valve body is arranged outside the electric appliance box, a first connecting port of the valve body is connected with a water outlet of the water pipe, and a second connecting port of the valve body is connected with a water return port of the water pump.
More conveniently, the water pump is internally provided with a water storage space.
In order to improve the heat dissipation effect, the water pipe is continuously bent and embedded in the radiator in a wavy manner.
The technical scheme adopted by the invention for solving the second technical problem is as follows: a range hood control panel heat dissipation method applying the range hood control panel heat dissipation device is characterized in that: when a fan works in the range hood, the rotating speed of the water pump is controlled according to working parameters of the fan, water is pumped into the water pipe, and the power module of the range hood control board is cooled by the aid of the radiator and water flow in the water pipe.
The technical scheme adopted by the invention for solving the third technical problem is as follows: comprises the following steps
S1, initializing a low-temperature interval, a middle-temperature interval and a high-temperature interval of a power module of the control board, wherein the temperature interval of the low-temperature interval is T < ALThe temperature interval of the medium temperature interval is AL≤T≤AHThe temperature interval of the high temperature interval is T & gt AHWherein T represents a temperature value, ALTo a set low temperature threshold, AHIs a set high temperature threshold;
initialization suckerThe highest rotating speed of a water pump under different working gears x of a fan in the range hood is up to VxH；
S2, detecting the temperature data T on the power module of the control panel in real time when the range hood worksnow；
S3, judgment TnowThe temperature interval to which it belongs, if TnowIf the temperature is in the low temperature range, S4 is performed; if T isnowIf the temperature belongs to the middle temperature interval, S5 is carried out; if T isnowIf the temperature belongs to the high temperature interval, S6 is carried out;
s4, controlling the rotating speed V of the water pump to be a low rotating speed set value VL；
S5, acquiring fan gear data x of the current range hood;
controlling the rotation speed V ═ V of the water pumpxH-VL)(Tnow-AL)/(AH-AL)+VL；
S6, acquiring fan gear data x of the current range hood; control the water pump according to VxHThe fan is controlled to work at the rotating speed, and the frequency reduction work is carried out.
Preferably, in S6, the method for down-converting the fan includes: x is compared with a preset gear threshold value xmComparing;
if x < xmControlling the fan to continue working according to the current gear, if x is more than or equal to xmAnd controlling and adjusting the working gear of the fan to be x-1.
The technical scheme adopted by the invention for solving the fourth technical problem is as follows: setting resistance intervals such as a high resistance interval, a low resistance interval and a non-resistance interval of the fan according to the wind resistance condition of the fan;
setting gear intervals of a weak gear interval, a middle gear interval and a strong gear interval of the fan according to the working gear of the fan;
s3, at judgment TnowAcquiring gear data x and fan resistance data Z of the fan while belonging to the temperature interval, judging the gear interval to which x belongs and judging the resistance interval to which Z belongs;
when T isnowIn the low temperature range, if x is in the high gear range and Z is in the low gear rangeAdjusting the rotating speed V of the water pump to be (V) in the resistance region or the non-resistance regionxmaxH-VL)Tnow/(AH-AL)+VLIn which V isxmaxHIs the highest gear x of the fanmaxThe highest rotating speed of the lower water pump;
when T isnowIf x belongs to the strong gear interval and Z belongs to the high resistance interval, adjusting the rotating speed V of the water pump to be (eta V)xmaxH-VL)(Tnow-AL)/(AH-AL)+VL；0<η<1；
When T isnowIf x belongs to the strong gear interval and Z belongs to the non-resistance interval, adjusting the rotating speed V of the water pump to be VxmaxH；
When T isnowIf x belongs to the middle gear range or the strong gear range and Z belongs to the high resistance range when the temperature belongs to the high temperature range, adjusting the rotating speed V of the water pump to be (V)xH-VL)(Tnow-AH)/(AH-AL)+VL。
As an improvement, in the step of detecting the accumulated working time t of the range hood, in S4, firstly, whether t exceeds a set time threshold t0 is judged, and if the working time of the range hood exceeds a time threshold t0, the water pump is controlled to rotate at a speed VLAnd after the operation is carried out for a set time period tm, controlling the water pump to stop working, and simultaneously resetting t.
Compared with the prior art, the invention has the advantages that: according to the heat dissipation device for the control panel of the range hood, the heat radiator is arranged, the water pipe capable of communicating water is embedded in the heat radiator, so that the water in the water pipe is utilized to improve the heat dissipation of the power module on the control panel, the heat dissipation efficiency of the power module on the control panel is improved, the working operation of the range hood in a higher-power mode is met, and the working performance of the range hood is improved.
The heat dissipation method of the heat dissipation device for the control board of the range hood can control the pump water rotating speed of the water pump according to the working condition of the fan in the range hood, so that the flow speed of water flow in the water pipe can be adjusted, the heat dissipation requirement of the power module on the control board can be matched with the flow speed of the water flow in the water pipe, the heat dissipation efficiency of the power module on the control board can be played in a targeted manner, and the heat dissipation effect is better.
Drawings
Fig. 1 is a perspective view of a heat dissipation device for a control panel of a range hood in an embodiment of the present invention.
Fig. 2 is an internal structure diagram of the heat dissipation device for the control panel of the range hood in the embodiment of the present invention.
Fig. 3 is a partially enlarged view of fig. 2.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 and fig. 2, the heat dissipation device for a control board of a range hood in this embodiment is used for effectively dissipating heat of a power module on the control board 200 of the range hood, and in order to protect the control board 200, an electrical box 100 is usually arranged to seal the control board 200 in the electrical box 100, so as to achieve water and oil resistance of the control board 200.
The radiating device for the control panel of the range hood comprises a radiator 1, a water pipe 2, a water pump 3 and a valve body 4. Wherein, the radiator 1 and the water pipe 2 are arranged in the electric appliance box 100, and the water pump 3, the valve body 4, the heating mechanism 5 and the cleaning agent mechanism 6 are arranged outside the electric appliance box 100.
The heat sink 1 may adopt a heat sink 1 in the prior art, and usually the heat sink 1 has a plurality of heat dissipation fins to increase heat exchange with air and increase heat dissipation speed. The heat sink 1 is attached to the power module of the control board 200 to accelerate heat conduction on the power module.
The water pipe 2 is embedded in the radiator 1, the water pipe 2 is embedded in the radiator 1 in a wavy continuous bending manner in the implementation, water is introduced into the water pipe 2, heat transfer between the water pipe 2 and the power module of the control panel 200 and the radiator 1 is realized through water flowing in the water pipe 2, the heat dissipation speed is accelerated, the contact area between the water pipe 2 and the radiator 1 is increased due to the shape of the water pipe 2, and the heat dissipation speed is further increased.
The water pump 3 in this embodiment has a water inlet, an outlet, and a water return port, wherein the outlet of the water pump 3 is connected with the water inlet of the water pipe 2. The water inlet of water pump 3 can be connected with outside water source, and for convenient to use, water pump 3 adopts the water pump 3 that has the water storage space in this embodiment, and when this range hood was installed, the installation technician can pour into a certain amount of water into the water storage space of water pump 3.
The valve body 4 in this embodiment has three connectors, and the first connector of valve body 4 is connected with the delivery port of water pipe 2, and the second connector of valve body 4 is connected with the return water mouth of water pump 3.
Generally, the higher the working gear of the fan in the range hood is, the higher the heat of the power module on the control panel 200 is, the higher the rotating speed of the water pump 3 is, so that the higher the flow rate in the water pipe 2 is, and further the higher the cooling speed is, the cooling requirement of the power module on the control panel 200 is met, and the dynamic balance between the temperature on the power module on the control panel 200 and the rotating speed of the water pump 3 is achieved.
The heat dissipation method of the range hood control panel by utilizing the heat dissipation device of the range hood control panel comprises the following steps: when the fan works in the range hood, the rotating speed of the water pump 3 is controlled according to the working parameters of the fan, water is pumped into the water pipe 2, and water flow in the radiator 1 and the water pipe 2 is utilized to dissipate heat of the power module of the range hood control board 200.
The heat dissipation method for the control panel of the range hood specifically comprises the following steps:
s1, initializing a low-temperature interval, a middle-temperature interval and a high-temperature interval of the power module of the control board 200, wherein the temperature interval of the low-temperature interval is T < ALThe temperature interval of the medium temperature interval is AL≤T≤AHThe temperature interval of the high temperature interval is T & gt AHWherein T represents a temperature value, ALTo a set low temperature threshold, AHIs a set high temperature threshold. A. theLAnd AHCan be obtained through experimental tests.
Initializing the maximum rotating speed of a water pump 3 to V under different working gears x of a fan in the range hoodxHV corresponding to different working gears xxHCan also be obtained through experimental tests, namely when the rotating speed of the water pump 3 is adjusted to VxHIn the meantime, the heat dissipation requirement of the power module of the control board 200 with the fan working at the working gear x can be met.
And initializing resistance intervals such as a high resistance interval, a low resistance interval and a non-resistance interval of the fan according to the wind resistance condition of the fan. In this embodiment, a range section in which the outlet static pressure value >500Pa is set as a high resistance section, a range section in which the outlet static pressure value >500Pa >250Pa is set as a low resistance section, and a range section in which the outlet static pressure value <250Pa is set as a no resistance section.
And initializing and setting gear intervals of a weak gear interval, a middle gear interval and a strong gear interval of the fan according to the working gear of the fan. This different gear interval's setting can be set up with the control to 3 rotational speeds of water pump more accurate as the standard, can include a work gear in a gear interval, also can include two or more than two work gears.
S2, detecting the temperature data T on the power module of the control board 200 in real time when the range hood worksnowAnd acquiring gear data x and fan resistance data Z of the fan.
S3, judgment TnowThe temperature interval to which it belongs, if TnowIf the temperature is in the low temperature range, S4 is performed; if T isnowIf the temperature belongs to the middle temperature interval, S5 is carried out; if T isnowIf the temperature falls within the high temperature range, S6 is performed.
And simultaneously judging the gear interval to which x belongs and judging the resistance interval to which Z belongs.
S4, controlling the rotating speed V of the water pump 3 to be a low rotating speed set value VLWhen the rotating speed V of the water pump 3 is controlled and regulated to be VLFirstly, detecting the accumulated working time t of the range hood, judging whether the t exceeds a set time threshold t0, and if the working time of the range hood exceeds a time threshold t0, controlling the water pump 3 to rotate at a rotating speed VLAnd after the operation is carried out for a set time period tm, controlling the water pump 3 to stop working, and simultaneously resetting t. Thus, unnecessary heat dissipation can be avoided.
In addition, if x belongs to a strong gear range and Z belongs to a low resistance range or a non-resistance range, the rotation speed of the water pump 3 is adjusted
Wherein
Is the highest gear x of the fanmaxThe lower water pump 3 has the highest rotation speed.
That is, when the working gear of the fan in the range hood is in the middle gear range or the weak gear range, the rotating speed of the fan is low, the resistance of the fan is small no matter how high or low, the temperature rise of the power module on the corresponding control board 200 is not serious, the speed of the rotating speed of the water pump 3 has no essential influence on the actual heat dissipation, and the low noise is taken as the principle to reduce the noise pollution to the user, so that the rotating speed of the water pump 3 can be controlled to be kept at the low rotating speed set value VL。
If the working gear of the fan in the range hood is in a strong gear interval and is in a low resistance state or even a non-resistance state, the working condition of the fan is good, the noise is low, but the working current is large, and then the temperature rise of the power module on the control board 200 is rapid, so that the rotating speed of the water pump 3 can be accelerated, and the balance between the noise and the heat dissipation effect is realized.
S5, acquiring fan gear data x of the current range hood; controlling the speed V ═ V of the water pump 3xH-VL)(Tnow-AL)/(AH-AL)+VL。
If x belongs to a strong gear interval and Z belongs to a high resistance interval, the noise of the fan in the range hood is the largest at the moment, but the current of the fan is small at the moment, the temperature rise rate of the power module on the corresponding control board 200 is slow, and in order to be compatible with the noise effect, the rotating speed of the water pump 3 is properly reduced, so that the rotating speed of the water pump 3 is adjusted
Wherein 0<η<1, η in this example is 0.8.
Or if x belongs to the strong gear interval and Z belongs to the non-resistance interval, the working condition of the fan is excellent and the noise is low, but the current of the fan is high, the temperature rise of the power module on the corresponding control panel 200 is rapid, the speed of the water pump 3 is increased, and the influence on the whole noise is small, so that the fan can better realize the effect on the whole noiseThe rotating speed of the water pump 3 is adjusted to the maximum, namely the rotating speed of the water pump 3 is adjusted
S6, acquiring fan gear data x of the current range hood; control the water pump 3 to be VxHThe rotation speed of the motor is adjusted to work; if x belongs to the middle gear range or the strong gear range and Z belongs to the high resistance range, the fan has the largest noise under high resistance, and if the water pump 3 still follows the rotating speed VxHIn operation, the noise is very loud. And the fan current is low under high resistance, so that the fan can be controlled to carry out frequency reduction. And in order to be compatible with noise and the best heat dissipation effect, the rotating speed of the water pump 3 is reduced, and the rotating speed V of the water pump 3 is adjusted to be (V)xH-VL)(Tnow-AH)/(AH-AL)+VL。
The specific method for the fan to carry out frequency reduction work comprises the following steps: x is compared with a preset gear threshold value xmComparing; if x < xmControlling the fan to continue working according to the current gear, if x is more than or equal to xmAnd controlling and adjusting the working gear of the fan to be x-1. In the embodiment, the larger the x value is, the higher the gear of the fan is, and the higher the rotating speed of the fan is. Such as x can be setmAnd if the gear x of the fan is greater than 3, and if the gear of the fan is 4, the working gear of the fan is adjusted to 3, the frequency reduction operation is realized, and the heat generation capacity of the power module on the corresponding control board 200 is also reduced. Therefore, the temperature of the power module on the control board 200 can be effectively reduced on the basis of slightly sacrificing the oil fume discharge capacity, and the normal and reliable operation of the range hood is ensured.
According to the heat dissipation device for the control panel of the range hood, the heat radiator 1 is arranged, the water pipe 2 capable of communicating with water is embedded in the heat radiator 1, so that heat dissipation of the power module on the control panel 200 is improved by utilizing the water communicated in the water pipe 2, the heat dissipation efficiency of the power module on the control panel 200 is improved, the working operation of the range hood in a higher-power mode is met, and the work performance of the range hood is improved.
The heat dissipation method of the heat dissipation device for the control panel of the range hood can control the pump water rotating speed of the water pump 3 according to the working condition of the fan in the range hood, and further adjust the flow rate of water flow in the water pipe 2, so that the flow rate of water flow in the water pipe 2 can be matched with the heat dissipation requirement of the power module on the control panel 200, the heat dissipation efficiency of the power module on the control panel 200 is exerted in a targeted manner, and the heat dissipation effect is better.
Claims (8)
1. The utility model provides a range hood control panel heat abstractor which characterized in that: comprises that
The radiator (1) is arranged in the electrical box (100) and is attached to the power module of the control board (200);
the water pipe (2) is arranged in the electric appliance box (100) and embedded in the radiator (1);
the water pump (3) is arranged outside the electric appliance box (100), and an outlet of the water pump (3) is connected with a water inlet of the water pipe (2);
the valve body (4) is arranged outside the electric appliance box (100), a first connecting port of the valve body (4) is connected with a water outlet of the water pipe (2), and a second connecting port of the valve body (4) is connected with a water return port of the water pump (3).
2. The range hood control panel heat sink of claim 12, wherein: the water pump (3) is internally provided with a water storage space.
3. The range hood control panel heat sink of claim 13, wherein: the water pipe (2) is continuously bent and embedded in the radiator (1) in a wavy manner.
4. A heat dissipation method for a control panel of a range hood using the heat dissipation device for a control panel of a range hood as claimed in any one of claims 1 to 3, characterized in that: when a fan works in the range hood, the rotating speed of the water pump (3) is controlled according to working parameters of the fan, water is pumped into the water pipe (2), and water flow in the radiator (1) and the water pipe (2) is utilized to radiate heat of a power module of the range hood control panel (200).
5. The method for dissipating heat from a control panel of a range hood according to claim 4, wherein: comprises the following steps
S1, initializing a low-temperature interval, a middle-temperature interval and a high-temperature interval of a power module of the control board (200), wherein the temperature interval of the low-temperature interval is T < ALThe temperature interval of the medium temperature interval is AL≤T≤AHThe temperature interval of the high temperature interval is T & gt AHWherein T represents a temperature value, ALTo a set low temperature threshold, AHIs a set high temperature threshold;
initializing the highest rotating speed of a water pump (3) under different working gears x of a fan in the range hood to VxH；
S2, detecting the temperature data T on the power module of the control panel (200) in real time when the range hood worksnow；
S3, judgment TnowThe temperature interval to which it belongs, if TnowIf the temperature is in the low temperature range, S4 is performed; if T isnowIf the temperature belongs to the middle temperature interval, S5 is carried out; if T isnowIf the temperature belongs to the high temperature interval, S6 is carried out;
s4, controlling the rotating speed V of the water pump (3) to be a low rotating speed set value VL；
S5, acquiring fan gear data x of the current range hood;
controlling the rotating speed V of the water pump (3) to be (V)xH-VL)(Tnow-AL)/(AH-AL)+VL；
S6, acquiring fan gear data x of the current range hood; controlling the water pump (3) according to VxHThe fan is controlled to work at the rotating speed, and the frequency reduction work is carried out.
6. The heat dissipation method for the control board (200) of the range hood according to claim 5, wherein: in S6, the method for the fan to perform frequency reduction work comprises the following steps: x is compared with a preset gear threshold value xmComparing;
if x < xmControlling the fan to continue working according to the current gear, if x is more than or equal to xmThen controlling and adjusting the working gear of the fan to bex-1。
7. The heat dissipation method for the control panel of the range hood according to claim 5 or 6, wherein: setting resistance intervals such as a high resistance interval, a low resistance interval and a non-resistance interval of the fan according to the wind resistance condition of the fan;
setting gear intervals of a weak gear interval, a middle gear interval and a strong gear interval of the fan according to the working gear of the fan;
s3, at judgment TnowAcquiring gear data x and fan resistance data Z of the fan while belonging to the temperature interval, judging the gear interval to which x belongs and judging the resistance interval to which Z belongs;
when T isnowWhen the temperature belongs to the low temperature range, if x belongs to the strong gear range and Z belongs to the low resistance range or the non-resistance range, the rotating speed of the water pump (3) is adjusted
Wherein VxmaxHIs the highest gear x of the fanmaxThe highest rotating speed of the lower water pump (3);
when T isnowWhen the water pump belongs to the medium temperature interval, if x belongs to the strong gear interval and Z belongs to the high resistance interval, the rotating speed of the water pump (3) is adjusted
Wherein 0<η<1；。
When T isnowWhen the water pump belongs to the middle temperature interval, if x belongs to the strong gear interval and Z belongs to the non-resistance interval, the rotating speed of the water pump (3) is adjusted
When T isnowWhen the water pump belongs to a high-temperature interval, if x belongs to a middle-gear interval or a strong-gear interval and Z belongs to a high-resistance interval, adjusting the rotating speed V of the water pump (3) to be (V)xH-VL)(Tnow-AH)/(AH-AL)+VL。
8. The heat dissipation method for the control panel of the range hood according to claim 5 or 6, wherein: detecting the accumulated working time t of the range hood, in S4, firstly judging whether t exceeds a set time threshold t0, if the working time of the range hood exceeds a time threshold t0, controlling the water pump (3) to rotate according to the rotating speed VLAnd after the operation is carried out for a set time period tm, controlling the water pump (3) to stop working, and simultaneously resetting t.
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| CN202110077392.1A CN112930082B (en) | 2021-01-20 | 2021-01-20 | Radiating method for control panel of range hood |
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| CN202110077392.1A CN112930082B (en) | 2021-01-20 | 2021-01-20 | Radiating method for control panel of range hood |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015004498A (en) * | 2013-06-24 | 2015-01-08 | 東芝キヤリア株式会社 | Heat source device |
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| CN112082183A (en) * | 2019-06-14 | 2020-12-15 | 青岛海尔智能技术研发有限公司 | Refrigerating smoke machine, control method and control device for heat dissipation of refrigerating smoke machine |
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2021
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| JP2015004498A (en) * | 2013-06-24 | 2015-01-08 | 東芝キヤリア株式会社 | Heat source device |
| CN104296212A (en) * | 2014-09-05 | 2015-01-21 | 宁波方太厨具有限公司 | Oil filter device and range hood applying same |
| CN105570949A (en) * | 2016-02-05 | 2016-05-11 | 珠海格力电器股份有限公司 | Smoke exhaust ventilator and control method of smoke exhaust ventilator |
| CN107202353A (en) * | 2017-08-05 | 2017-09-26 | 袁小强 | The controller of lampblack absorber |
| CN207716562U (en) * | 2017-08-24 | 2018-08-10 | 深圳沃海森科技有限公司 | The ultra-thin outdoor machine of air-conditioner of water-cooled |
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| CN209659866U (en) * | 2019-02-25 | 2019-11-19 | 李树兵 | A kind of server radiating auxiliary device |
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| CN112930082B (en) | 2022-05-17 |
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