CN112074180B - Adjustable diversion control system, control method thereof and water heater - Google Patents
Adjustable diversion control system, control method thereof and water heater Download PDFInfo
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- CN112074180B CN112074180B CN202011077228.2A CN202011077228A CN112074180B CN 112074180 B CN112074180 B CN 112074180B CN 202011077228 A CN202011077228 A CN 202011077228A CN 112074180 B CN112074180 B CN 112074180B
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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 8
- 238000001816 cooling Methods 0.000 claims abstract description 64
- 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
- 239000003507 refrigerant Substances 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram 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
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008602 contraction Effects 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
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 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
Classifications
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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
-
- 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
-
- 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
-
- 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)
- Chemical & Material Sciences (AREA)
- 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, a control method thereof and a water heater. Wherein, adjustable water conservancy diversion control system includes: the radiator is sequentially arranged on the cold source device and the air cooling air inlet device at the back of the radiator; the distance between the air cooling inlet device and the radiator is automatically adjusted by an adjusting device. According to the heat dissipation requirement, the distance between the air cooling inlet device and the radiator is automatically controlled. When the working temperature of the electric cabinet is higher, the air cooling and air inlet device is driven to be close to the radiator, so that the higher the air speed of cold air blown to the radiator through the air cooling and air inlet device and the cold air inlet device is, the lower the temperature is, and the higher the heat dissipation capacity is. Therefore, the heat radiation capability of the electric cabinet is improved, so that the problems of frequency rising and limited capability output and reduced reliability of the unit are effectively solved, and the service life of the whole machine and the popularity of users are improved.
Description
Technical Field
The invention relates to the technical field of compressor heat pumps, in particular to a rapid heat dissipation adjustable diversion control system capable of improving air cooling heat dissipation efficiency of an electric cabinet, a control method thereof and a water heater.
Background
When the existing large-cooling-capacity multifunctional water heater works, the problem that the heating value of an IPM (drive heat dissipation module) is too large due to the fact that the drive current is too large after the cooling capacity exceeds 16kw occurs. At this time, the existing electric cabinet air cooling device is adopted, and the heat dissipation capacity of the electric cabinet air cooling device is seriously insufficient, so that the problems that the frequency of the whole machine cannot be increased and the capacity output is limited are solved. On the other hand, too high IPM temperature also can lead to the drive plate section bar in the electric cabinet to warp impaired to reduce the life of drive plate, influence the reliability of the use of complete machine, bring serious after-market use problem. If technical means such as refrigerant replacement are adopted, the research and development cost of the whole machine is increased or the whole machine capability is damaged. These are unacceptable from a professional point of view. In practical simulation, it is found that there are many improvements in heat dissipation of the IPM driving board at present, and these improvements are allowed by the industry's manufacturing capability.
Therefore, how to overcome the defects that when the refrigerating capacity of the existing high-refrigerating-capacity multifunctional water heater is overlarge, the frequency of the whole machine cannot be increased, the capacity output is limited, the service life of a driving plate is reduced, and the cost is increased or the reliability of the whole machine is reduced is a problem to be solved in the industry.
Disclosure of Invention
The invention provides an adjustable diversion control system and a control method thereof, which are convenient for rapid heat dissipation, and a water heater with the adjustable diversion control system, aiming at solving the problems that the existing cold multifunctional water heater cannot be pulled up in frequency and limited in capacity output, the service life of a driving plate is reduced, and the cost or the reliability of the whole machine is increased.
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 cooling 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 and air inlet device and the radiator and a control device for driving the telescopic guide rod mechanism to stretch.
Preferably, the air cooling and air intake device is a plate-shaped member, a plurality of through holes with diameters being changed from large to small are distributed on the plate-shaped member, and one surface of the small-caliber through hole of the air cooling and air intake device is opposite to the cold source device.
Preferably, the cold source device comprises a radiating fin and a refrigerant pipeline penetrating through the radiating fin.
Preferably, the back of the radiator pair is provided with a plurality of ribs, and an air channel is formed between two adjacent ribs.
Preferably, flexible sealing members of the surrounding barriers are arranged on four surrounding side surfaces between the radiator and the air cooling and air inlet device.
Preferably, the front of the radiator is provided with an electric cabinet, the control device is arranged in the electric cabinet, and the control wire is directly connected to a driving 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;
according to the working temperature, the ambient temperature, the temperature near the cold source device and the limiting frequency temperature detected in each detection period, automatically adjusting the distance between the air cooling inlet device and the radiator once;
preferably, the distance between the air cooling and air intake device and the radiator is automatically adjusted according to the calculated value of an adjustment distance equation, and the adjustment distance equation is as follows:
wherein: o is the actual distance between the air cooling inlet device and the radiator;
l1 is the maximum distance between the air cooling and air inlet device and the radiator, and is determined by structural design;
a is a stroke adjustment coefficient, and is determined according to the actual distance between the air cooling air inlet device and the radiator and dimension analysis;
t1 is a detection period;
t1 is the working temperature of a driving heat dissipation module in the electric cabinet, T2 is the ambient temperature of the electric cabinet, and T3 is the temperature near the cold source device; t11 is the limiting frequency temperature of the driving heat dissipation module.
The invention further provides a water heater, which comprises the adjustable diversion control system.
The invention provides an adjustable diversion control system for rapid heat dissipation, wherein a cold source device and an air cooling air inlet device are sequentially arranged on the back surface of a radiator. When the sucked air for heat dissipation passes through the air cooling inlet device, the air speed becomes high, thereby generating a low pressure area. The cooling source device is used for continuously cooling, so that the air at one side of the fin on the back of the radiator is kept in a low-pressure area, the parameters of the low-pressure area are kept stable, and the air quantity is continuously sucked from the outside for cooling, so that the aim of radiating the radiator is fulfilled. The automatic adjusting device is used for automatically controlling the distance between the air cooling and air inlet device and the radiator, and the working temperature of the IPM (driving heat dissipation module) and the environmental conditions are related, namely, when the working temperature of the IPM is higher, the air cooling and air inlet device is driven to be close to the radiator, so that the higher the wind speed of cold air blown to the back of the radiator is, the lower the temperature is, the larger the heat dissipation capacity is, and the high-temperature bearing capacity of a driving plate in the electric cabinet is improved. The heat sink has a wide range of continuous heat dissipation capability, and can bear the rise of the highest temperature within a certain range. The control device is directly arranged in the electric cabinet, the control line is connected with the driving plate, and the unit space is not occupied, so that the structural simplification of the whole machine is realized. Thereby effectively solving the problems of frequency rise and limited capacity output and reduced reliability of the unit; the service life of the whole machine and the popularity of users are improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an adjustable diversion control system of the present invention;
FIG. 2 is a cross-sectional view of the air-cooled intake apparatus of FIG. 1;
FIG. 3 is a schematic diagram showing the relationship between the heat dissipation capacity of the adjustable flow control system and the movement of the air cooling and air intake device.
In the figure: 1-an electric cabinet; 2-a heat sink; 3-refrigerant pipes; 4-a telescopic guide rod; 5-an air cooling air inlet device; 6-fins; 7, sealing cloth; 8-through holes.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, an embodiment of an adjustable diversion control system provided by the invention includes a radiator 2, a cold source device and an air-cooled air inlet device 5, which are sequentially arranged on the back (lower) surface of the radiator 2. The distance between the air cooling inlet 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-cooling and air-intake device 5 is a plate-shaped member, and a rectangle corresponding to the shape of the back surface of the radiator 2 is selected, and a plurality of through holes 8 with diameters changed from large to small, for example, truncated cone-shaped through holes are distributed on the plate-shaped member. Through holes with larger ends and smaller ends in other shapes can be selected as required. One surface of the air cooling 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 and air inlet 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 stability, four sets of telescopic guide rod mechanisms 4 are adopted and are respectively arranged at four corners between the air cooling and air inlet device 5 and the radiator 2. In practice, the number and the installation position of the telescopic guide rod mechanisms can be selected according to the needs, so long as the stable movement of the air cooling and air inlet device 5 relative to the radiator 2 is ensured. The back of the radiator 2, namely one side surface opposite to the cold source device, is provided with a plurality of parallel ribs, and the gap between two adjacent ribs forms an exhaust air channel. The peripheral sides between the radiator 2 and the air-cooled intake device 5 are provided with flexible sealing members such as sealing cloth 7 (only a part of the sealing cloth 7 is schematically shown in fig. 1, it being understood that the sealing cloth 7 surrounds the peripheral sides). 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 wire is directly connected to a driving plate of the electric cabinet. It will be appreciated that the control means also includes a drive motor and a mechanism for driving the telescopic guide mechanism 4 to extend and retract. And temperature sensors arranged at each point, wherein the temperature sensors at each point are connected with a control wire for a controller of a driving plate arranged in the electric cabinet 1.
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 multifunctional water heater with large cooling capacity, a cold source device and an air-cooled air inlet device 5 are sequentially arranged on the back surface of the radiator 2 for rapid heat radiation. When the radiating wind is blown upwards from the lower part of the air cooling inlet device 5, the radiating wind exchanges heat with the cold source device, and then is blown to the radiator 2 to exchange heat with the cold source device, and then is discharged along the gap direction between two adjacent fins of the radiator. The control device controls the expansion and contraction of the expansion guide rod mechanism to adjust the distance between the air cooling and inlet device 5 and the radiator 2, so that the air speed of cold air blown to the radiator can be adjusted. When the wind flows through the reducing through hole 8 of the air cooling and air inlet device 5, the large Kong Jinxiao hole is discharged, so that the throttling and the depressurization of the wind are realized, namely, when the wind is discharged from the small hole, the wind speed is accelerated, and the static pressure of the nearby space is reduced. Namely, by controlling the distance between the air cooling inlet device 5 and the radiator 2, a low-pressure area is formed between the radiator fins and the cold source device, and the cold source device reduces the air temperature of the area to form a stable low-temperature high-wind speed area. The pressure of the low-pressure area is stabilized by means of the low-temperature area formed by the cold source device, continuous pumping capacity is formed for air outside the air-cooled air inlet device 5, and the air quantity of the low-pressure area is enhanced by high-air speed air inside the air-cooled air inlet device 5 in turn, so that the air inlet speed is effectively increased, the air quantity is continuously pumped from the outside, and the air is forcedly cooled by the cold source device after throttling and depressurization. The cooled wind is directly and rapidly blown to the surface of the radiator in the vertical direction and takes away the heat. Meanwhile, by utilizing the good surrounding performance and economical property of the sealing cloth 7, the radiator 2 and the air-cooled air inlet device 5 are enclosed and sealed, so that the air can flow out from the fin gaps of the radiator. When the air cooling inlet device 5 is closer to the cold source device, the higher the speed of the cold air blown to the surface of the radiator 3, the lower the temperature, and the higher the heat dissipation capacity. In addition, the control device is installed in the electric cabinet 1 nearby, the control line is directly connected to the driving plate, 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, detecting the working temperature T1 of a driving heat dissipation module in an electric cabinet 1, the ambient temperature T2 of the electric cabinet and the temperature T3 near a cold source device by a temperature sensor according to each detection period (also called an adjustment period); 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, beyond which the driving board has a risk of burning out, and the frequency-reducing operation is required. A typical temperature sensor returns temperature data every 10s, i.e. the detection period is 10s.
And secondly, automatically adjusting the distance O between the air cooling and air inlet 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 nearby the cold source device and the limiting frequency temperature T11. The distance O between the air cooling inlet device 5 and the radiator 2 is calculated according to an adjusting distance equation, and the adjusting distance equation is as follows:
wherein: o is the actual distance between the air cooling inlet device and the radiator;
l1 is the maximum distance between the air cooling inlet device and the radiator, and is determined by structural design. Namely, the adjusting distance between the air cooling 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 cooling air inlet device and the radiator and dimension analysis. Industry is usually fitted from a large number of experimental data;
t1 is a detection period;
wherein:the coefficients are adjusted for driving demand. The larger the temperature difference between the working temperature of the IPM and the temperature of the limiting frequency is, the smaller the distance between the air cooling inlet device and the radiator is required, which means that the larger the required heat dissipation capacity is.
Wherein:the coefficients are adjusted for the ambient temperature demand. The lower the temperature T3 near the cold source device is, the larger the distance between the air cooling inlet device and the radiator is required; when the temperature difference (T2-T3) of the cold source is larger, the distance between the air cooling inlet device and the radiator is required to be smaller.
According to the heating condition of the driving plate in the electric cabinet, the distance between the air cooling and air inlet device 5 and the radiator 2 can be automatically adjusted once every other adjustment period (namely detection period), and as shown in fig. 3, when the heating value of the electric cabinet 1 is increased, the smaller the distance L1 between the air cooling and air inlet device 5 and the radiator 2 is, the larger the heat dissipation capacity is; if the distance L1 between the two is increased, the heat dissipation capacity is small, so that the optimal heat dissipation effect of the electric cabinet is ensured.
According to the heat dissipation requirement, the invention can automatically control the distance between the air cooling inlet device and the radiator. When the working temperature of the electric cabinet is higher, the air cooling and air inlet device is driven to be close to the radiator, so that the higher the air speed of cold air blown to the radiator through the air cooling and air inlet device is, the lower the temperature is, and the higher the heat dissipation capacity is. Thereby improving the heat radiation capability of the electric cabinet, so that the problems of limited frequency pulling and capability output and reduced reliability of the unit are effectively solved; the service life of the whole machine and the popularity of users are improved.
The above examples are only for illustrating specific embodiments of the present invention. It should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the spirit of the invention, and these modifications and variations should be considered to be within the scope of the invention.
Claims (6)
1. The adjustable diversion control system comprises a radiator, wherein an electric cabinet is arranged on the front surface of the radiator, and the adjustable diversion control system is characterized in that a control device is arranged in the electric cabinet, a control line is directly connected onto a driving plate of the electric cabinet, a cold source device and an air cooling air inlet device are sequentially arranged below the back surface of the radiator, the air cooling air inlet device is a plate-shaped member and is rectangular corresponding to the back surface of the radiator, a plurality of through holes with the diameters being changed from large to small are distributed on the plate-shaped member, and one surface of the small-caliber through hole of the air cooling air inlet device is opposite to the cold source device; the flexible sealing members of the surrounding barriers are arranged on the side surfaces of the periphery between the radiator and the air cooling air inlet device, and the distance between the air cooling air inlet device and the radiator is automatically adjusted through an adjusting device;
according to the calculated value of an adjusting distance equation, automatically adjusting the distance between the air cooling inlet device and the radiator, wherein the adjusting distance equation is as follows:
；
wherein: o is the actual distance between the air cooling inlet device and the radiator;
l1 is the maximum distance between the air cooling and air inlet device and the radiator, and is determined by structural design;
a is a stroke adjustment coefficient, and is obtained according to the actual distance between the air cooling air inlet device and the radiator and dimension analysis;
t1 is a detection period;
t1 is the working temperature of a driving heat dissipation module in the electric cabinet, T2 is the ambient temperature of the electric cabinet, and T3 is the temperature near the cold source device; t11 is the limiting frequency temperature of the driving heat dissipation module.
2. The adjustable draft control system of claim 1 wherein said adjustment means comprises a telescoping guide bar mechanism disposed between said air cooled intake and said radiator and a control means for driving said telescoping guide bar mechanism to telescope.
3. The adjustable draft control system of claim 1, wherein said cold source means comprises a heat sink fin and a refrigerant conduit passing through said heat sink fin.
4. The adjustable draft control system of claim 1, wherein the back of the radiator is provided with a plurality of ribs, and the gaps between adjacent ribs form an air duct.
5. A control method of the adjustable draft control system according to claim 1, comprising the steps of:
detecting the working temperature of a driving heat dissipation module in the electric cabinet, the ambient temperature of the electric cabinet and the temperature near the cold source device; detecting the limiting frequency temperature of the driving heat dissipation module;
and automatically adjusting the distance between the air cooling and air inlet device and the radiator once according to the working temperature, the ambient temperature, the temperature near the cold source device and the limiting frequency temperature detected in each detection period and the calculated value of the adjusting distance equation.
6. A water heater comprising an adjustable diversion control system as claimed in any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011077228.2A CN112074180B (en) | 2020-10-10 | 2020-10-10 | Adjustable diversion control system, control method thereof and water heater |
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| CN112074180A CN112074180A (en) | 2020-12-11 |
| CN112074180B true CN112074180B (en) | 2024-03-19 |
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| CN112303854B (en) * | 2020-10-30 | 2023-02-03 | 青岛海尔空调电子有限公司 | Control method of air suction type air conditioner |
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| CN210840492U (en) * | 2019-10-16 | 2020-06-23 | 远洋航空科技(天津)有限公司 | Heat dissipation device for airborne equipment of unmanned aerial vehicle |
| CN211474239U (en) * | 2020-01-20 | 2020-09-11 | 三一汽车起重机械有限公司 | Radiator wind scooper and engineering machinery |
| 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 |
-
2020
- 2020-10-10 CN CN202011077228.2A patent/CN112074180B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102612299A (en) * | 2012-02-15 | 2012-07-25 | 武汉华海通用电气有限公司 | Power device heat pipe heat-removal system with controlled cooling air volume |
| CN107166563A (en) * | 2017-05-31 | 2017-09-15 | 海信（广东）空调有限公司 | Window type air conditioner and electric control heat dissipation method thereof |
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| CN111076309A (en) * | 2019-12-11 | 2020-04-28 | 珠海格力电器股份有限公司 | Flow guide grid control system and method, air conditioner external unit and air conditioner unit |
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