CN112074180A - Adjustable flow guide control system capable of dissipating heat quickly, control method of adjustable flow guide control system and water heater - Google Patents
Adjustable flow guide control system capable of dissipating heat quickly, control method of adjustable flow guide control system and water heater Download PDFInfo
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- CN112074180A CN112074180A CN202011077228.2A CN202011077228A CN112074180A CN 112074180 A CN112074180 A CN 112074180A CN 202011077228 A CN202011077228 A CN 202011077228A CN 112074180 A CN112074180 A CN 112074180A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 34
- 230000017525 heat dissipation Effects 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000670 limiting effect Effects 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000002829 reductive effect Effects 0.000 description 9
- 239000004744 fabric Substances 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004141 dimensional analysis Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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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
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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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
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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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
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses an adjustable diversion control system capable of dissipating heat quickly, a control method of the adjustable diversion control system and a water heater. Wherein, adjustable water conservancy diversion control system includes: the radiator is sequentially arranged on a cold source device and an air-cooled air inlet device on the back of the radiator; the distance between the air-cooled air inlet device and the radiator is automatically adjusted by an adjusting device. According to the heat dissipation requirement, the distance between the air cooling air inlet device and the radiator is automatically controlled. When the working temperature of the electric cabinet is higher, the air-cooled air inlet device is driven to be close to the radiator, so that the larger the air speed of cold air blown to the radiator through the air-cooled air inlet device and the cold air inlet device is, the lower the temperature is, and the larger the heat dissipation capacity is. Therefore, the heat dissipation capability of the electric cabinet is improved, the problems of unit frequency rise, capability output limitation and reliability reduction are effectively solved, the service life of the whole machine is prolonged, and the user popularity is improved.
Description
Technical Field
The invention relates to the technical field of compressor heat pumps, in particular to an adjustable diversion control system capable of improving air-cooling heat dissipation efficiency of an electric cabinet and capable of dissipating heat quickly, a control method of the adjustable diversion control system and a water heater.
Background
When the existing large-cooling-capacity multifunctional water heater works, when the refrigerating capacity exceeds 16kw, the problem that the heat productivity of an IPM (driving heat dissipation module) is too large due to too large driving current occurs. At the moment, the existing electric cabinet air cooling device is adopted, the heat dissipation capability is seriously insufficient, and therefore the problems that the frequency of the whole machine cannot be increased and the capability output is limited are caused. On the other hand, too high IPM temperature can also cause the deformation and damage of the drive plate section bar in the electric cabinet, thereby reducing the service life of the drive plate, influencing the use reliability of the whole machine and bringing serious after-sale use problems. If technical means such as refrigerant replacement are adopted, the research and development cost of the whole machine is increased or the capacity of the whole machine is damaged. These are unacceptable from a professional point of view. In actual simulation, the heat dissipation of the current IPM drive board is found to have a lot of improvement directions, and the improvement schemes are all allowed by the manufacturing capability of the industry.
Therefore, how to overcome the defects that the overall frequency cannot be increased, the capacity output is limited, the service life of a driving plate is reduced, the cost is increased or the overall reliability is reduced when the refrigerating capacity of the conventional high-refrigerating-capacity multifunctional water heater is too large is a problem to be solved in the industry.
Disclosure of Invention
The invention provides an adjustable diversion control system convenient for rapid heat dissipation, a control method thereof and a water heater with the adjustable diversion control system, aiming at solving the problems that the frequency of the whole machine cannot be increased, the capacity output is limited, the service life of a driving plate is reduced, the cost is increased or the reliability of the whole machine is reduced in the existing multifunctional cold water heater.
The invention provides an adjustable diversion control system which comprises a radiator, a cold source device and an air-cooled air inlet device, wherein the cold source device and the air-cooled air inlet device are sequentially arranged on the back surface of the radiator; the distance between the air-cooled air inlet device and the radiator is automatically adjusted by an adjusting device.
Preferably, the adjusting device comprises a telescopic guide rod mechanism arranged between the air cooling air inlet device and the radiator and a control device for driving the telescopic guide rod mechanism to stretch.
Preferably, the air-cooled air intake device is a plate-shaped member, a plurality of through holes with the aperture gradually reduced are distributed on the plate-shaped member, and one surface of the small-aperture through hole of the air-cooled air intake device is opposite to the cold source device.
Preferably, the cold source device comprises a heat dissipation fin and a refrigerant pipeline penetrating through the heat dissipation fin.
Preferably, the back of the radiator pair is provided with a plurality of fins, and an air duct is formed between two adjacent fins.
Preferably, the surrounding side surface between the radiator and the air cooling air inlet device is provided with a flexible sealing component for surrounding baffle.
Preferably, the front surface of the radiator is provided with an electric cabinet, the control device is arranged in the electric cabinet, and the control line is directly connected to a drive plate of the electric cabinet.
The invention also provides a control method of the adjustable diversion control system, which comprises the following steps:
detecting the working temperature of a driving heat dissipation module in the electric cabinet, the environment temperature of the electric cabinet and the temperature near the cold source device; detecting the limiting frequency temperature of the driving heat dissipation module;
automatically adjusting the distance between the air cooling air inlet device and the radiator once according to the working temperature, the environment temperature, the temperature near the cold source device and the limiting frequency temperature detected in each detection period;
preferably, the distance between the air-cooled air intake device and the radiator is automatically adjusted according to a calculated value of an adjusting distance equation, wherein the adjusting distance equation is as follows:
in the formula: o is the actual distance between the air cooling air inlet device and the radiator;
l1 is the maximum distance between the air cooling air intake device and the radiator, and is determined by the structural design;
a is a stroke adjustment coefficient which is determined according to the actual distance between the air-cooled air inlet device and the radiator and dimensional analysis;
t1 is the detection period;
t1 is the working temperature of the driving heat dissipation module in the electric cabinet, T2 is the environment temperature of the electric cabinet, and T3 is the temperature near the cold source device; t11 is the limit frequency temperature of the driving heat sink module.
The invention further provides a water heater which comprises the adjustable diversion control system.
According to the adjustable diversion control system capable of rapidly dissipating heat, the cold source device and the air-cooled air inlet device are sequentially arranged on the back face of the radiator. After the sucked wind for heat dissipation passes through the air-cooled wind inlet device, the wind speed is increased, and a low-pressure area is generated. The cold source device is utilized to continuously cool, so that the air on one side of the fins on the back of the radiator is kept in the low-pressure area, the parameters of the low-pressure area are kept stable, and the air quantity is continuously absorbed from the outside to cool so as to achieve the purpose of radiating the radiator. The automatic adjustment adjusting device of the air cooling air inlet device is arranged, the distance between the air cooling air inlet device and the radiator is automatically controlled, the working temperature of an IPM (driving heat dissipation module) and the environmental condition are related, namely when the IPM working temperature is higher, the air cooling air inlet device is driven to be close to the radiator, so that the larger the air speed of cold air blown to the back surface of the radiator is, the lower the temperature is, the larger the heat dissipation amount is, and the high-temperature bearing capacity of the driving board in the electric control box is improved. Because the radiator has large-range continuous heat dissipation capacity, the maximum temperature can be borne within a certain range. The control device is directly arranged in the electric control box, and the control line is connected to the drive plate, so that the space of the unit is not occupied, and the structure of the whole machine is simplified. Therefore, the problems of unit frequency rise, limited capacity output and reduced reliability are effectively solved; the service life of the whole machine is prolonged and the popularity of users is improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an adjustable diversion control system of the present invention;
FIG. 2 is a cross-sectional view of the air cooling intake device of FIG. 1;
FIG. 3 is a schematic diagram showing the relationship between the heat dissipation capability of the adjustable diversion control system and the movement of the air-cooled air intake device.
In the figure: 1-an electric cabinet; 2-a radiator; 3-refrigerant pipeline; 4-a telescopic guide rod; 5-air cooling air intake device; 6-a fin; 7-sealing cloth; 8-through holes.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, an embodiment of the adjustable diversion control system provided by the present invention includes a heat sink 2, and a cold source device and an air cooling intake device 5 sequentially disposed on a back side (lower side) of the heat sink 2. The distance between the air cooling air intake device 5 and the radiator 2 is automatically adjusted by an adjusting device. The cold source device comprises a radiating fin 6 and a refrigerant pipeline 3 penetrating through the radiating fin. In this embodiment, the air-cooled air intake device 5 is a plate-shaped member, a rectangle corresponding to the shape of the back of the heat sink 2 is selected, and a plurality of through holes 8 with gradually decreasing apertures, for example, truncated cone-shaped through holes, are distributed on the plate-shaped member. Other shapes of through holes with one end larger and the other end smaller can be selected according to requirements. The side of the air-cooled air inlet device 5 provided with the small-caliber through hole is opposite to the cold source device. The adjusting device comprises a telescopic guide rod mechanism 4 arranged between the air cooling air intake device 5 and the radiator 2 and a control device (not shown in the figure) for automatically driving the telescopic guide rod mechanism 4 to stretch. For the sake of stability, the four sets of telescopic guide rod mechanisms 4 are respectively arranged at four corners between the air cooling air intake device 5 and the radiator 2. In fact, the number and the installation position of the telescopic guide rod mechanisms can be selected as required, as long as the air cooling air intake device 5 can stably move relative to the radiator 2. The back of the radiator 2, namely one side face opposite to the cold source device, is provided with a plurality of parallel fins, and an air exhaust duct is formed by a gap between two adjacent fins. The surrounding side surface between the radiator 2 and the air-cooled air intake device 5 is provided with a surrounding flexible sealing member, such as a sealing cloth 7 (only a part of the sealing cloth 7 is schematically shown in fig. 1, and it should be understood that the sealing cloth 7 surrounds the surrounding side surface). The front (upper surface) of the radiator 2 is provided with an electric cabinet 1, the control device is arranged in the electric cabinet 1, and a control line is directly connected to a drive plate of the electric cabinet. It should be understood that the control device also includes a drive motor and a mechanism for driving the telescopic guide rod mechanism 4 to extend and retract. And the temperature sensors are arranged at each point and are connected with a controller of a driving plate in the electric cabinet 1 through control lines.
The invention provides a large-cooling-capacity multifunctional water heater, which is provided with an adjustable diversion control system.
Referring to fig. 1 and 2, when an air-cooled radiator is used for radiating heat in an electric cabinet 1 of a high-cooling-capacity multifunctional water heater, a cold source device and an air-cooled air inlet device 5 are sequentially arranged on the back of the radiator 2. When the heat-dissipating wind blows upwards from the lower part of the air-cooling air inlet device 5, the wind exchanges heat with the cold source device, then blows to the radiator 2 to exchange heat with the radiator, and then is discharged along the gap direction between two adjacent fins of the radiator. The distance between the air cooling air inlet device 5 and the radiator 2 is adjusted by controlling the extension and retraction of the telescopic guide rod mechanism through the control device, so that the air speed of cold air blowing to the radiator can be adjusted. When wind flows through the reducing through holes 8 of the air cooling air inlet device 5, the large holes enter the small holes to be discharged, and throttling and pressure reduction of the wind are achieved, namely when the wind flows out of the small holes, the wind speed is accelerated, and static pressure of nearby spaces is reduced. Namely, a low-pressure area is formed between the fins of the radiator and the cold source device by controlling the distance between the air cooling air inlet device 5 and the radiator 2, and the air temperature of the area is reduced by the cold source device to form a stable area with low temperature and high wind speed. The low temperature region formed by the cold source device stabilizes the pressure of the low-pressure region, and forms continuous suction capability to the air outside the air-cooled air inlet device 5, and the high-air-speed air inside the air-cooled air inlet device 5 strengthens the air volume of the low-pressure region in turn, so that the air inlet speed of the air-cooled air inlet device is effectively increased, the air volume is continuously sucked from the outside, and the air is forcibly cooled by the cold source device after throttling and pressure reduction. The cooling wind directly and rapidly blows to the surface of the radiator in the vertical direction and takes away the heat. Meanwhile, the sealing cloth 7 has good surrounding performance and economic characteristics, and the space between the radiator 2 and the air-cooled air inlet device 5 is sealed in a surrounding manner, so that air can flow out from the fin gaps of the radiator. When the air-cooled air intake device 5 is closer to the cold source device, the larger the air speed of the cold air blown to the surface of the radiator 3 is, the lower the temperature is, and the larger the heat dissipation capacity is. In addition, the control device is installed in the electric cabinet 1 nearby, and the control wire is directly connected to the drive plate, so that the space is saved, and the structure is simplified.
Referring to fig. 1 and 2, the present invention further provides a control method for an adjustable diversion control system, which includes the following steps:
firstly, according to each detection period (also called regulation period), detecting the working temperature T1 of a driving heat dissipation module, the environment temperature T2 of an electric cabinet and the temperature T3 near a cold source device in the electric cabinet 1 by a temperature sensor; the limit frequency temperature T11 of the driving heat dissipation module is detected. The limiting frequency temperature T11 is the highest limiting temperature of the driving heat dissipation module, and if the driving board is at risk of burning out, the frequency reduction operation is required. The general temperature sensor returns temperature data once every 10s, namely the detection period is 10 s.
And secondly, automatically adjusting the distance O between the air-cooled air intake device 5 and the radiator 2 according to the working temperature T1 detected by the temperature sensor, the environment temperature T2 of the electric cabinet, the temperature T3 near the cold source device and the limiting frequency temperature T11. The distance O between the air cooling air intake device 5 and the radiator 2 is calculated according to an adjusting distance equation, wherein the adjusting distance equation is as follows:
in the formula: o is the actual distance between the air cooling air inlet device and the radiator;
l1 is the maximum distance between the air cooling air intake device and the radiator, and is determined by the structural design. Namely, the adjusting distance between the air cooling air inlet device and the radiator is 0-L1;
a is a stroke adjustment coefficient, and is obtained according to the actual distance between the air-cooled air inlet device and the radiator and dimensional analysis. The industry typically fits from a large amount of experimental data;
t1 is the detection period;
in the formula:
the coefficients are adjusted for the driving requirements. The larger the temperature difference between the operating temperature of the IPM and the limited frequency temperature is, the smaller the distance between the air-cooled air intake device and the radiator is, which indicates that the required heat dissipation capacity is larger.
In the formula:
the coefficients are adjusted for ambient temperature requirements. The lower the temperature T3 near the cold source device is, the larger the distance between the air cooling air inlet device and the radiator is required to be; when the temperature difference (T2-T3) of the cold source is larger, the distance between the air cooling air inlet device and the radiator is required to be smaller.
According to the heating condition of the driving board in the electric cabinet, the distance between the air-cooled air intake device 5 and the radiator 2 can be automatically adjusted once every adjusting period (namely, a detection period), as shown in fig. 3, when the heating value of the electric cabinet 1 is increased, the smaller the distance L1 between the air-cooled air intake device 5 and the radiator 2 is, the larger the heat dissipation capacity is; if the distance L1 between the two is enlarged, the heat dissipation capacity is small, thereby ensuring the best heat dissipation effect of the electric cabinet.
According to the heat dissipation requirement, the invention can automatically control the distance between the air cooling air inlet device and the radiator. When the working temperature of the electric cabinet is higher, the air-cooled air inlet device is driven to be close to the radiator, so that the larger the wind speed of cold wind blown to the radiator through the air-cooled air inlet device is, the lower the temperature is, and the larger the heat dissipation capacity is. Thereby improving the heat dissipation capacity of the electric cabinet, and effectively solving the problems of unit frequency rise, limited capacity output and reduced reliability; the service life of the whole machine is prolonged and the popularity of users is improved.
The above examples are intended only to illustrate specific embodiments of the present invention. It should be noted that, for a person skilled in the art, several modifications and variations can be made without departing from the inventive concept, and these modifications and variations shall fall within the protective scope of the present invention.
Claims (10)
1. An adjustable diversion control system comprises a radiator, and is characterized in that a cold source device and an air cooling air inlet device are sequentially arranged on the back surface of the radiator; the distance between the air-cooled air inlet device and the radiator is automatically adjusted by an adjusting device.
2. The adjustable diversion control system of claim 1 wherein said adjustment means comprises a telescoping guide bar mechanism disposed between said air cooled intake assembly and said heat sink and a control means for actuating said telescoping guide bar mechanism.
3. The adjustable diversion control system of claim 1 wherein the air-cooled air intake device is a plate-shaped member, a plurality of through holes with decreasing aperture are distributed on the plate-shaped member, and one surface of the small aperture through hole of the air-cooled air intake device is opposite to the cold source device.
4. The adjustable diversion control system as claimed in claim 1 wherein said cold source means comprises heat dissipating fins and coolant conduits passing through said heat dissipating fins.
5. The adjustable conductance control system of claim 1, wherein a plurality of fins are disposed on a back surface of the heat sink, and a gap between two adjacent fins forms an air channel.
6. The adjustable diversion control system of claim 1 wherein a flexible sealing member of the enclosure is provided on the peripheral side between the heat sink and the air-cooled air intake device.
7. The adjustable diversion control system as claimed in claim 2 wherein an electric cabinet is provided on the front side of said heat sink, said control means being provided in said electric cabinet, and control wires being directly connected to a drive plate of said electric cabinet.
8. A method of controlling an adjustable conductance control system of any one of claims 1 through 7, comprising the steps of:
detecting the working temperature of a driving heat dissipation module in the electric cabinet, the environment temperature of the electric cabinet and the temperature near a cold source device; detecting the limiting frequency temperature of the driving heat dissipation module;
and automatically adjusting the distance between the air cooling air inlet device and the radiator once according to the working temperature, the environment temperature, the temperature near the cold source device and the limiting frequency temperature detected in each detection period.
9. The control method of claim 8, wherein the distance between the air-cooled air intake device and the heat sink is automatically adjusted according to a calculated value of an adjustment distance equation:
in the formula: o is the actual distance between the air cooling air inlet device and the radiator;
l1 is the maximum distance between the air cooling air intake device and the radiator, and is determined by the structural design;
a is a stroke adjustment coefficient which is obtained by analyzing the actual distance between the air-cooled air inlet device and the radiator and dimensions;
t1 is the detection period;
t1 is the working temperature of the driving heat dissipation module in the electric cabinet, T2 is the environment temperature of the electric cabinet, and T3 is the temperature near the cold source device; t11 is the limit frequency temperature of the driving heat sink module.
10. A water heater comprising an adjustable diversion control system as claimed in any one of claims 1 to 7.
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| CN202011077228.2A CN112074180B (en) | 2020-10-10 | 2020-10-10 | Adjustable diversion control system, control method thereof and water heater |
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| CN202011077228.2A CN112074180B (en) | 2020-10-10 | 2020-10-10 | Adjustable diversion control system, control method thereof and water heater |
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| CN112074180B CN112074180B (en) | 2024-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303854A (en) * | 2020-10-30 | 2021-02-02 | 青岛海尔空调电子有限公司 | Control method of air suction type air conditioner |
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| CN212259695U (en) * | 2020-10-10 | 2020-12-29 | 珠海格力电器股份有限公司 | Quick radiating adjustable water conservancy diversion control system and hot water machine |
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2020
- 2020-10-10 CN CN202011077228.2A patent/CN112074180B/en active Active
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| CN102392467A (en) * | 2011-10-01 | 2012-03-28 | 徐州徐工挖掘机械有限公司 | Adjustable radiating system of excavator |
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| CN112303854A (en) * | 2020-10-30 | 2021-02-02 | 青岛海尔空调电子有限公司 | Control method of air suction type air conditioner |
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| CN112074180B (en) | 2024-03-19 |
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