CN106247478B - Snow removing device of air conditioner outdoor unit, control method of snow removing device and air conditioner outdoor unit - Google Patents
Snow removing device of air conditioner outdoor unit, control method of snow removing device and air conditioner outdoor unit Download PDFInfo
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- CN106247478B CN106247478B CN201610877617.0A CN201610877617A CN106247478B CN 106247478 B CN106247478 B CN 106247478B CN 201610877617 A CN201610877617 A CN 201610877617A CN 106247478 B CN106247478 B CN 106247478B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/30—Condensation of water from cooled air
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- Combustion & Propulsion (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioners, in particular to a snow removing device of an air conditioner outdoor unit, a control method of the snow removing device and the air conditioner outdoor unit. The snow removing device of the air conditioner outdoor unit comprises a snow sweeping mechanism arranged on the outer side surface of the condenser and a power mechanism connected with the snow sweeping mechanism, and the power mechanism is used for driving the snow sweeping mechanism to move in a plane parallel to the outer side surface of the condenser. The snow removing device of the air conditioner outdoor unit can remove accumulated frost or accumulated snow on the outer side surface of the condenser by driving the snow removing mechanism to move on the outer side surface of the condenser, so that the accumulated snow or the accumulated frost on the outer side surface of the condenser is prevented from influencing the heat exchange efficiency of the condenser, and the heating effect of the air conditioner is ensured.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a snow removing device of an air conditioner outdoor unit, a control method of the snow removing device and the air conditioner outdoor unit.
Background
At present, be applied to air conditioner in northern Europe etc. cold and cold region under the condition that meets with strong wind and snow weather, the easy snow of surface of air condensing units condenser to the gap that exists between the turn-ups of the bottom of condenser and chassis also causes the snow easily, and at low temperature, the snow easily becomes massive ice-cube, can lead to two serious problems to appear in the air conditioner like this: firstly, the condenser is frosted seriously, and the defrosting is difficult, so that the heating operation of the air conditioner is influenced; secondly, the condenser is covered by ice and snow, which seriously affects the heat exchange efficiency and causes the heating performance of the air conditioner to be greatly reduced.
The existing solution is to build a simple wind and snow proof shed for the outdoor unit of the air conditioner, and the method has great problems in practical application: firstly, building the shed needs to find other basic materials such as timber and the like; but the difficulty and complexity of the installation of the whole air conditioning system are increased in the building process; thirdly, the cost is increased, so that the installation cost of the air conditioner is increased.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the technical problem that snow is easily accumulated on the outer side of a condenser of an air conditioner outdoor unit in the prior art.
(II) technical scheme
In order to solve the technical problem, the invention provides a snow removing device of an air conditioner outdoor unit, which comprises a snow sweeping mechanism arranged on the outer side surface of a condenser and a power mechanism connected with the snow sweeping mechanism, wherein the power mechanism is used for driving the snow sweeping mechanism to move in a plane parallel to the outer side surface of the condenser.
According to the invention, the snow sweeping mechanism is vertically arranged, the outer side of the condenser is provided with the horizontally arranged linear sliding chute, and the power mechanism is used for driving the snow sweeping mechanism to reciprocate along the linear sliding chute.
According to the invention, the snow sweeping mechanism is horizontally arranged, the outer side of the condenser is provided with the vertically arranged linear sliding groove, and the power mechanism is used for driving the snow sweeping mechanism to reciprocate along the linear sliding groove.
According to the snow sweeper, the power mechanism comprises a motor and a ball screw pair, the ball screw pair comprises a nut and a screw rod arranged in parallel with the linear sliding groove, the nut is connected with the snow sweeper, and the motor drives the screw rod to rotate, so that the nut drives the snow sweeper to move linearly along the linear sliding groove.
According to the snow sweeping mechanism, the power mechanism comprises a hydraulic cylinder, and a piston rod of the hydraulic cylinder is connected with the snow sweeping mechanism.
According to the invention, the snow sweeping mechanism is a snow sweeping plate, and the snow sweeping plate is gradually inclined from top to bottom in the direction away from the condenser.
The invention also provides an air conditioner outdoor unit which comprises the snow removing device.
The invention also provides a control method of the snow removing device of the air conditioner outdoor unit, which comprises the following steps:
s1, starting a heating mode of the air conditioner;
s2, the snow sweeping mechanism enters a standby mode;
s3, acquiring the outlet temperature of the condenser;
s4, judging whether the outlet temperature of the condenser is lower than the set temperature, and controlling the snow sweeping mechanism to clean the outer side surface of the condenser when the outlet temperature of the condenser is lower than the set temperature;
s5, return to execute steps S2 to S4.
According to the present invention, after the step S1 is executed and before the step S2 is executed, the steps of: and S11, controlling the snow removing mechanism to pre-clean the outer side surface of the condenser.
According to the invention, in the step S4, the snow sweeping mechanism sweeps the outer side surface of the whole condenser every time for sweeping the condenser and then returns to the initial position, and the number of times of reciprocating sweeping is 3-5.
According to the invention, the initial position of the snow sweeping mechanism is positioned above the gap between the chassis and the condenser, and is used for shielding the gap between the chassis and the condenser.
According to the present invention, the set temperature in step S4 is higher than the defrosting start temperature of the outdoor unit of the air conditioner.
(III) advantageous effects
Compared with the prior art, the technical scheme of the invention has the following advantages: the snow removing device of the air conditioner outdoor unit provided by the embodiment of the invention can remove accumulated frost or accumulated snow on the outer side surface of the condenser by driving the snow sweeping mechanism to move on the outer side surface of the condenser, so that the accumulated snow or accumulated snow on the outer side surface of the condenser is prevented from influencing the heat exchange efficiency of the condenser, the heating effect of the air conditioner is ensured, the snow removing device can be more important particularly in cold regions such as northern Europe under the condition of more wind and snow, and the accumulated snow can be removed in time. Under the condition of no wind or snow, the snow removing device can also be used for removing frost accumulated on the outer side of the condenser, and the influence on the heat exchange efficiency of the condenser caused by icing of the frost accumulated on the outer side of the condenser is avoided.
Drawings
Fig. 1 is a schematic view of an assembly structure of a snow removing device of an air conditioner outdoor unit according to a first embodiment of the present invention;
fig. 2 is an assembly structural schematic view of a snow removing device of an air conditioner outdoor unit according to a second embodiment of the present invention;
fig. 3 is a control logic diagram of a control method of a snow removing device of an air conditioner outdoor unit according to a fourth embodiment of the present invention.
In the figure: 1: a condenser; 2: a snow sweeping mechanism; 3: a power mechanism; 4: a linear chute; 5: a motor; 6: a lead screw; 7: a nut; 8: a motor support.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example one
As shown in fig. 1, the snow removing apparatus for an outdoor unit of an air conditioner according to the embodiment of the present invention includes a snow sweeping mechanism 2 disposed on an outer side surface of a condenser 1, and a power mechanism 3 connected to the snow sweeping mechanism 2, where the power mechanism 3 is configured to drive the snow sweeping mechanism 2 to move in a plane parallel to the outer side surface of the condenser 1. The snow removing device for the air conditioner outdoor unit provided by the embodiment of the invention can remove accumulated frost or accumulated snow on the outer side surface of the condenser 1 by driving the snow removing mechanism 2 to move on the outer side surface of the condenser 1, so that the accumulated snow or accumulated snow on the outer side surface of the condenser 1 is prevented from influencing the heat exchange efficiency of the condenser 1, the heating effect of the air conditioner is ensured, the snow removing device can be more important particularly in cold regions such as northern Europe under the condition of more wind and snow, and the accumulated snow can be removed in time. Under the condition of no wind or snow, the snow removing device can also be used for removing frost accumulated on the outer side of the condenser 1, and the influence on the heat exchange efficiency of the condenser 1 caused by icing and the like of the frost accumulated on the outer side of the condenser 1 is avoided.
Further, in the present embodiment, the snow sweeping mechanism 2 is vertically disposed, a horizontally disposed linear chute 4 is disposed outside the condenser 1, and the power mechanism 3 is configured to drive the snow sweeping mechanism 2 to reciprocate along the linear chute 4. Preferably, the height of the snow sweeping mechanism 2 is the same as the height of the outer side surface of the condenser 1 to be swept in the embodiment, the snow sweeping mechanism 2 can sweep the outer side surface of the whole condenser 1 when moving along the linear sliding groove 4, the snow sweeping effect is good, and the snow can be removed through multiple times of reciprocating motion. Snow sweeping mechanism 2 in this embodiment can be the scraper blade, scrapes off the snow in the condenser 1 outside, because condenser 1 lateral surface is not smooth plane, and snow sweeping mechanism 2 is preferred the brush, can go out the snow between the condenser 1 fin, reaches deep snow removing. The snow sweeping mechanism 2 is not limited to the vertical arrangement, and may be arranged obliquely, and may be driven by the power mechanism 3 to sweep the outer side surface of the entire condenser 1.
Further, in the present embodiment, the power mechanism 3 includes a motor 5 and a ball screw assembly, the ball screw assembly includes a nut 7 and a screw 6 parallel to the linear chute 4, the nut 7 is connected to the snow sweeping mechanism 2, and the motor 5 drives the screw 6 to rotate, so that the nut 7 drives the snow sweeping mechanism 2 to move linearly along the linear chute 4. The combination of the ball screw pair and the motor 5 is adopted as the power mechanism 3, the running is stable, the structure is simple, and the reciprocating motion of the snow sweeping mechanism 2 can be realized through the forward and reverse rotation control of the motor 5. Specifically, in the present embodiment, the motor 5 and the ball screw pair are both disposed below the outer side surface of the condenser 1, the motor 5 is fixed on the casing of the outdoor unit to be installed by using the motor support 8, the bottom end of the snow sweeping mechanism 2 is connected to the snow sweeping mechanism 2, the linear chute 4 is disposed above the outer side surface of the condenser 1, the top end of the snow sweeping mechanism 2 is located in the linear chute 4, and preferably, a pulley is disposed at the top end of the snow sweeping mechanism 2, so that the snow sweeping mechanism 2 can slide in the linear chute 4. It should be noted that the power mechanism 3 in this embodiment may be a hydraulic cylinder whose piston rod is connected to the snow sweeping mechanism 2, or another power mechanism 3 that can drive the snow sweeping mechanism 2 to reciprocate.
Example two
The second embodiment has the same technical content as the first embodiment, and the disclosure of the first embodiment also belongs to the disclosure of the second embodiment, and the difference between the second embodiment and the first embodiment is as follows: as shown in fig. 2, in the present embodiment, the snow sweeping mechanism 2 is horizontally disposed, a vertically disposed linear chute 4 is disposed outside the condenser 1, and the power mechanism 3 is configured to drive the snow sweeping mechanism 2 to reciprocate along the linear chute 4. Preferably, the width of the snow sweeping mechanism 2 in the embodiment is the same as the width of the outer side surface of the condenser 1 to be swept, the snow sweeping mechanism 2 can sweep the outer side surface of the whole condenser 1 when moving along the linear sliding groove 4, the snow removing effect is good, and the snow can be removed through multiple times of reciprocating motion.
Further, in the present embodiment, the snow sweeping mechanism 2 is a snow sweeping plate, and the snow sweeping plate is gradually inclined from top to bottom in a direction away from the condenser 1. The snow sweeping plate top that the slope set up contacts with condenser 1's lateral surface and gets rid of the snow of condenser 1 lateral surface, and the downward sloping can shelter from the clearance between condenser 1 and the chassis surrounding edge when the snow sweeping plate is berthhed in the bottom, prevents snow in the clearance, is favorable to snow to slide down smoothly under the action of gravity, avoids snow to melt and freezes in the chassis.
EXAMPLE III
The third embodiment of the invention provides an air conditioner outdoor unit comprising the snow removing device provided by the first embodiment or the second embodiment. Snow sweeping mechanisms 2 in the snow removing device are arranged on the outer side surface of a condenser 1, a power mechanism 3 is fixed on a shell of an outdoor unit, accumulated snow or accumulated frost on the outer side surface of the condenser 1 is removed through the snow sweeping mechanisms 2, and the heat exchange effect of the condenser 1 is improved.
Example four
An embodiment four of the present invention provides a method for controlling a snow removing device for an outdoor unit of an air conditioner according to the first or second embodiment, as shown in fig. 3, including the steps of:
s1, starting a heating mode of the air conditioner;
s2, the snow sweeping mechanism 2 enters a standby mode;
s3, acquiring the outlet temperature of the condenser 1;
s4, judging whether the outlet temperature of the condenser 1 is lower than a set temperature or not, and controlling the snow sweeping mechanism 2 to clean the outer side surface of the condenser 1 when the outlet temperature of the condenser 1 is lower than the set temperature;
s5, return to execute steps S2 to S4.
The control method of the snow removing device of the air conditioner outdoor unit provided by the embodiment of the invention controls whether to clean the outer side surface of the condenser 1 by judging whether the temperature of the outlet of the condenser 1 is lower than the set temperature, when the temperature of the outlet of the condenser 1 is lower than a certain temperature, the heat exchange effect of the condenser 1 is considered to be reduced, the outer side surface of the condenser 1 needs to be cleaned, the temperature of the outlet of the condenser 1 is used as a judgment condition, the control is more accurate, the good snow removing effect is ensured, and the energy consumption is prevented from being increased due to the too frequent work of the snow sweeping mechanism 2.
Further, in the present embodiment, after the step S1 is executed and before the step S2 is executed, the steps of: and S11, controlling the snow removing mechanism to pre-clean the outer side surface of the condenser 1. Specifically, in the pre-cleaning process in the embodiment, the snow sweeping mechanism 2 sweeps the outer side surface of the whole condenser 1 for each time of cleaning of the condenser 1 and then returns to the initial position, and the number of reciprocating cleaning times is 3-5. The lateral surface of condenser 1 probably has a large amount of snow when the air conditioner mode of heating just opened, clears up in advance and can play good effect to subsequent snow removing process to it.
Further, in the present embodiment, in step S4, the snow sweeping mechanism 2 sweeps the entire outer side surface of the condenser 1 for each sweeping of the condenser 1 and then returns to the initial position, and the number of times of the reciprocal sweeping is 3 to 5. The multiple cleaning ensures that the cleaning of the outer side of the condenser 1 is more thorough. Further, the initial position of the snow sweeping mechanism 2 in the embodiment is located above the gap between the chassis and the condenser 1, and is used for shielding the gap between the chassis and the condenser 1. Snow is prevented from falling into a gap between the base plate and the condenser 1, and the possibility of snow on the base plate freezing is reduced.
Further, in the present embodiment, the set temperature in step S4 is higher than the defrosting start temperature of the outdoor unit of the air conditioner. In the embodiment, the set temperature is preferably-4 ℃ to-1 ℃, the set temperature is preferably 1 ℃ to 2 ℃ higher than the defrosting start temperature, the set temperature higher than the defrosting start temperature can control the snow sweeping action to be always before the defrosting action, namely, the snow sweeping action is basically finished for defrosting, on one hand, the defrosting time can be shortened, on the other hand, frost or snow accumulated on the condenser 1 can be completely melted, the condenser 1 is ensured not to be frozen, and the good heat exchange effect of the condenser 1 is ensured.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A snow removing device of an air conditioner outdoor unit is characterized in that: the snow sweeping mechanism is arranged on the outer side surface of the condenser, and the power mechanism is connected with the snow sweeping mechanism and used for driving the snow sweeping mechanism to move in a plane parallel to the outer side surface of the condenser;
the snow sweeping mechanism is horizontally arranged, a vertically arranged linear sliding groove is formed in the outer side of the condenser, the power mechanism is used for driving the snow sweeping mechanism to reciprocate along the linear sliding groove, the snow sweeping mechanism is a snow sweeping plate, the snow sweeping plate inclines towards the direction far away from the condenser from top to bottom gradually, and the snow sweeping plate is suitable for shielding a gap between the condenser and a chassis of an air conditioner outdoor unit.
2. The snow removing apparatus according to claim 1, characterized in that: the power mechanism comprises a motor and a ball screw pair, the ball screw pair comprises a nut and a screw rod arranged in parallel with the linear sliding groove, the nut is connected with the snow sweeping mechanism, and the motor drives the screw rod to rotate, so that the nut drives the snow sweeping mechanism to move linearly along the linear sliding groove.
3. The snow removing apparatus according to claim 1, characterized in that: the power mechanism comprises a hydraulic cylinder, and a piston rod of the hydraulic cylinder is connected with the snow sweeping mechanism.
4. An outdoor unit of an air conditioner, comprising: comprising a snow removing apparatus as claimed in any one of claims 1 to 3.
5. A control method of a snow removing device of an air conditioner outdoor unit is characterized by comprising the following steps:
s1, starting a heating mode of the air conditioner;
s2, the snow sweeping mechanism enters a standby mode;
s3, acquiring the outlet temperature of the condenser;
s4, judging whether the outlet temperature of the condenser is lower than the set temperature, and controlling the snow sweeping mechanism to clean the outer side surface of the condenser when the outlet temperature of the condenser is lower than the set temperature;
s5, returning to execute the steps S2 to S4;
after the execution of step S1 and before the execution of step S2, the steps of: and S11, controlling the snow removing mechanism to pre-clean the outer side surface of the condenser.
6. The control method of the snow removing device for an outdoor unit of an air conditioner of claim 5, characterized in that: in the step S4, the snow sweeping mechanism sweeps the outer side surface of the whole condenser every time for sweeping the condenser and then returns to the initial position, and the number of times of reciprocating sweeping is 3-5.
7. The control method of the snow removing device for an outdoor unit of an air conditioner of claim 6, wherein: the initial position of the snow sweeping mechanism is positioned above the gap between the chassis and the condenser and is used for shielding the gap between the chassis and the condenser.
8. The control method of the snow removing device for an outdoor unit of an air conditioner of claim 5, characterized in that: in step S4, the set temperature is higher than the temperature at which defrosting of the outdoor unit of the air conditioner starts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877617.0A CN106247478B (en) | 2016-09-30 | 2016-09-30 | Snow removing device of air conditioner outdoor unit, control method of snow removing device and air conditioner outdoor unit |
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|---|---|---|---|
| CN201610877617.0A CN106247478B (en) | 2016-09-30 | 2016-09-30 | Snow removing device of air conditioner outdoor unit, control method of snow removing device and air conditioner outdoor unit |
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| CN106247478B true CN106247478B (en) | 2022-03-08 |
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| CN107143971B (en) * | 2017-04-18 | 2019-07-23 | 珠海格力电器股份有限公司 | A kind of snow defence control method, device, system and air-conditioning |
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- 2016-09-30 CN CN201610877617.0A patent/CN106247478B/en active Active
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| JPH07332812A (en) * | 1994-06-03 | 1995-12-22 | Kajima Corp | Method and mechanism for snowing preventive operation of outside air conditioning device |
| CN101561167A (en) * | 2008-04-14 | 2009-10-21 | 乐金电子(天津)电器有限公司 | Snow cover prevention control method for fan of outdoor unit of air conditioner |
| CN201688635U (en) * | 2010-04-30 | 2010-12-29 | 董雨 | Defrosting mechanism of evaporator |
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| CN106247478A (en) | 2016-12-21 |
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