CN112128859B - Adjustable flow path and fresh air air conditioner - Google Patents
Adjustable flow path and fresh air air conditioner Download PDFInfo
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- CN112128859B CN112128859B CN202011119883.XA CN202011119883A CN112128859B CN 112128859 B CN112128859 B CN 112128859B CN 202011119883 A CN202011119883 A CN 202011119883A CN 112128859 B CN112128859 B CN 112128859B
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- 239000003507 refrigerant Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000004378 air conditioning Methods 0.000 claims abstract description 3
- 230000001105 regulatory effect Effects 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 28
- 238000007599 discharging Methods 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 6
- 238000004904 shortening Methods 0.000 abstract description 5
- 230000010485 coping Effects 0.000 abstract description 2
- 230000009977 dual effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
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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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0068—Indoor units, e.g. fan coil units characterised by the arrangement of refrigerant piping outside the heat exchanger within the unit casing
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F13/20—Casings or covers
-
- 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
- F24F13/30—Arrangement or mounting of heat-exchangers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
涉及空调技术领域，本申请公开一种可调流路以及新风空调器，可调流路包括进液管和集气管以及第一流路和第二流路，第一流路包括引入端和排出端，引入端连接进液管，排出端连接集气管，引入端和排出端之间设有调节段；第二流路设有引入管和排出管，引入管连通进液管与调节段，排出管连通调节段和集气管；冷媒依次流经引入端和排出管形成第一调节管路，冷媒依次流经引入管和排出端形成第二调节管路。本发明，第一流路为一条整体通路，增设了第二流路，第二流路设置于第一流路的调节段，从而将第一流路分成了两段行程，通过增加冷媒流量、缩短流程的双重作用提高换热效率，从而应对新风的加入导致的温度影响，有效提高换热能力和温度调节能力。
Relating to the field of air conditioning technology, the present application discloses an adjustable flow path and a fresh air air conditioner, the adjustable flow path includes a liquid inlet pipe and an air collecting pipe and a first flow path and a second flow path, the first flow path includes an inlet end and a discharge end, the inlet end is connected to the liquid inlet pipe, the discharge end is connected to the air collecting pipe, and an adjustment section is provided between the inlet end and the discharge end; the second flow path is provided with an inlet pipe and a discharge pipe, the inlet pipe connects the liquid inlet pipe and the adjustment section, and the discharge pipe connects the adjustment section and the air collecting pipe; the refrigerant flows through the inlet end and the discharge pipe in sequence to form a first adjustment pipeline, and the refrigerant flows through the inlet pipe and the discharge end in sequence to form a second adjustment pipeline. In the present invention, the first flow path is an integral passage, and a second flow path is added, and the second flow path is arranged in the adjustment section of the first flow path, thereby dividing the first flow path into two sections, and the heat exchange efficiency is improved by the dual effects of increasing the refrigerant flow and shortening the process, thereby coping with the temperature influence caused by the addition of fresh air, and effectively improving the heat exchange capacity and temperature regulation capacity.
Description
Technical Field
The present application relates generally to air conditioners, and more particularly to an adjustable flow path, a fresh air conditioner, and a fresh air conditioning method.
Background
The indoor units of split wall-hanging air conditioners in the current market mostly have no fresh air exchanging function. Some air conditioners are added with fresh air exchanging function, mainly by adding an independent air duct system and adding a fan and a fan driving air suction in an air duct.
When the air conditioner is used for refrigerating in summer, if a fresh air system is opened, the air inlet temperature is higher, the state of the heat exchanger is still the original state, the air inlet is cooled insufficiently, and accordingly the air outlet temperature is higher, the indoor environment temperature is higher, the air conditioner cannot achieve the purpose of cooling, and the heating is similar and the actual heating effect cannot be achieved. Therefore, the original heat exchanger structure is utilized to treat fresh air, insufficient heat exchange can be caused, insufficient heat exchange capacity is caused, the temperature of the air outlet is higher, the cooling effect cannot be achieved, and the comfort is reduced.
In view of this, there is a need for improving the structure of the existing fresh air conditioner to improve the heat exchange capability.
Disclosure of Invention
It is a primary object of the present application to overcome the above-mentioned drawbacks of the prior art by providing an adjustable flow path comprising a liquid inlet tube and a gas collecting tube, comprising;
A first flow path including an inlet end and an outlet end, the inlet end being connected to the liquid inlet pipe, the outlet end being connected to the gas collecting pipe, an adjusting section being provided between the inlet end and the outlet end, and
The second flow path is provided with an introducing pipe and a discharging pipe, the introducing pipe is communicated with the liquid inlet pipe and the adjusting section, and the discharging pipe is communicated with the adjusting section and the gas collecting pipe;
the refrigerant flows through the introducing end and the discharging pipe in sequence to form a first adjusting pipeline, and the refrigerant flows through the introducing pipe and the discharging end in sequence to form a second adjusting pipeline.
According to an embodiment of the invention, a first valve is arranged at the joint of the introducing pipe and the liquid inlet pipe, and a second valve is arranged between the discharging pipe and the gas collecting pipe.
According to an embodiment of the invention, the first flow path is an S-shaped coil, and the inlet pipe and the outlet pipe are straight pipes.
The invention also discloses a fresh air conditioner, which comprises:
A heat exchanger comprising an adjustable flow path of the above structure, and
The fresh air system comprises an air duct, and an air outlet of the air duct faces to the upstream side of heat exchange airflow of the heat exchanger.
The invention also discloses a fresh air conditioner, which comprises:
A heat exchanger comprising an adjustable flow path of the above-described construction;
The fresh air system comprises an air duct and a sealing cover arranged at an inlet of the air duct, an air outlet of the air duct faces the air inlet side of the heat exchanger, and
The regulating system comprises a switch piece arranged on the air duct, the switch piece is connected with a regulating circuit, and the regulating circuit is electrically connected with the first valve and the second valve;
The sealing cover rotates to open or close the air duct, and the sealing cover rotates to drive the switch piece to act so as to enable the adjusting circuit to be switched on or off.
According to an embodiment of the invention, the switch element is a press button, the press button is arranged on the matching surface of the air duct, the sealing cover is buckled on the air duct, the press button is retracted under the pressure of the sealing cover, and the adjusting circuit is disconnected.
According to one embodiment of the invention, a hollow groove is formed in the side wall of the air duct, and the switch piece is connected with the adjusting circuit through a cable penetrating through the hollow groove.
According to an embodiment of the present invention, the air conditioner further comprises a control member provided on the air conditioner casing, and the cover is rotated by the control member to open or close the air duct.
Further, in the above embodiment, the control member includes an electromagnet provided on the air conditioner casing, and a magnet provided at a free end of the cover, and the electromagnet is energized to generate a magnetic force to cause the cover to be fastened to the duct.
Still further, in the above embodiment, the free end of the cover extends outward to form a supporting table, a buckle is disposed on an inner wall of the supporting table, and the magnet is disposed on the supporting table and abuts against the buckle.
According to one embodiment of the invention, the sealing cover is arranged on the outer peripheral surface of the air duct through a rotating shaft, and a return spring is sleeved on the outer periphery of the rotating shaft.
Further, in the above embodiment, the rotating shaft includes a positioning table, and the positioning table is clamped with the air duct.
Still further, in the above embodiment, the positioning table includes a first clamping block and a second clamping block, a first clamping position and a second clamping position are disposed on the air duct, the first clamping block is in fit connection with the first clamping position, the second clamping block is in fit connection with the second clamping position, and the clamping directions of the first clamping block and the second clamping block are opposite.
According to an embodiment of the invention, the air duct passes through the air conditioner bottom shell and is fixedly or detachably connected with the bottom shell.
According to an embodiment of the invention, a fresh air fan is arranged in the air duct.
The invention also discloses a fresh air regulating method of the fresh air conditioner, which comprises the following steps:
The fresh air system is started manually or automatically,
The sealing cover is opened, the regulating circuit is connected, the first valve and the second valve are opened, fresh air enters the air inlet side of the heat exchanger, the first regulating pipeline and the second regulating pipeline are opened, and the refrigerant exchanges heat with the mixed air of the fresh air and the indoor return air through the first flow path, the first regulating pipeline and the second regulating pipeline respectively and is blown out indoors after exchanging heat through the heat exchanger;
The fresh air system is manually or automatically closed,
The sealing cover is closed, the regulating circuit is disconnected, the first valve and the second valve are disconnected, the first regulating pipeline and the second regulating pipeline are disconnected, and the refrigerants exchange heat of indoor return air through the first flow path respectively and blow out the indoor air after exchanging heat through the heat exchanger.
The fresh air conditioner has the advantages and positive effects that the first flow path is an integral flow path, the adjusting section is arranged between the inlet end and the outlet end, the second flow path is additionally arranged on the adjusting section of the first flow path, and therefore the first flow path is divided into two sections of strokes, the first adjusting pipeline is a front section flow path passing through the first flow path, and the second adjusting pipeline utilizes a rear section flow path of the first flow path. The first regulating pipeline and the second regulating pipeline both shorten the flowing length of the refrigerant, and the heat exchange capacity is insufficient because the longer the flow is, the closer the temperature of the refrigerant in the heat exchanger is to the temperature of the windward side, so that the temperature and the heat exchange capacity of the refrigerant can be effectively maintained by shortening the heat exchange flow, and the number of the flow paths is increased by the second regulating pipeline, so that the output of the refrigerant is increased.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic view of an adjustable flow path according to a first embodiment.
Fig. 2 is a left side view of an adjustable flow path according to a second embodiment.
Fig. 3 is a schematic structural view of a fresh air conditioner according to the first embodiment.
Fig. 4 is a plan view of a fresh air conditioner according to a first embodiment.
Fig. 5 is a side sectional view of a fresh air conditioner according to a first embodiment.
Fig. 6 is a schematic structural diagram of a fresh air system according to a fourth embodiment.
Fig. 7 is an exploded view of the structure of a fresh air system according to the fourth embodiment.
Fig. 8 is a schematic structural view of a rotary shaft according to a fourth embodiment.
Fig. 9 is a schematic view of the structure of a purification net according to the fourth embodiment.
Wherein reference numerals are as follows:
The air conditioner casing 100, the liquid inlet pipe 101, the gas collecting pipe 102, the heat exchanger 110, the fan 120, the fresh air system 200, the air duct 210, the sealing cover 220, the supporting table 221, the clamping buckle 222, the electromagnet 231, the magnet 232, the rotating shaft 240, the return spring 241, the first clamping block 242, the second clamping block 243, the purifying net 250, the clamping piece 260, the convex hull 251, the introducing end 311, the discharging end 312, the introducing pipe 321, the discharging pipe 322, the first valve 331, the second valve 332, the switching piece 400 and the bottom shell 500.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In order to overcome the defect of insufficient heat exchange capacity of a fresh air conditioner in the prior art, the invention discloses an adjustable flow path, a fresh air conditioner and a fresh air adjusting method, which are used for improving heat exchange efficiency.
Example 1
As shown in fig. 1 and 2, the present invention discloses an adjustable flow path, which includes a liquid inlet pipe 101 and a gas collecting pipe 102, and includes a first flow path and a second flow path. The first flow path includes a leading-in end 311 and a discharging end 312, the leading-in end 311 is connected with the liquid inlet pipe 101, the discharging end 312 is connected with the gas collecting pipe 102, and an adjusting section is arranged between the first end and the second end. The second flow path is provided with an introducing pipe 321 and a discharging pipe 322, the introducing pipe 321 is communicated with the liquid inlet pipe 101 and the adjusting section, the discharging pipe 322 is communicated with the adjusting section and the gas collecting pipe 102, the refrigerant sequentially flows through the introducing end 311 and the discharging pipe 322 to form a first adjusting pipeline, and the refrigerant sequentially flows through the introducing pipe 321 and the discharging end 312 to form a second adjusting pipeline.
According to the technical scheme provided by the invention, the first flow path is an integral path, the adjusting section is arranged between the inlet end 311 and the outlet end 312, and the second flow path is additionally arranged on the adjusting section of the first flow path, so that the first flow path is divided into two sections of strokes, the first adjusting pipeline is a front section flow passing through the first flow path, and the second adjusting pipeline utilizes a rear section flow of the first flow path. The first regulating pipeline and the second regulating pipeline both shorten the flowing length of the refrigerant, because the longer the flow is, the closer the temperature of the refrigerant in the heat exchanger 110 is to the windward side temperature, resulting in insufficient heat exchange capacity, thus the shortening of the heat exchange flow can effectively maintain the temperature and heat exchange capacity of the refrigerant, and the second regulating pipeline also increases the flow path number, so that the output of the refrigerant is increased.
Specifically, the first flow path may adopt a common heat exchange structure of the existing heat exchanger 110, and the second flow path may be directly added on the basis of the existing structure. The adjusting section can be arranged at a half position of the flow path of the first flow path, so that the heat exchange length and the heat exchange effect of the first adjusting pipeline and the second adjusting pipeline are relatively consistent, and the operation and the monitoring are convenient. It is understood that the introduction pipe 321 and the discharge pipe 322 should be disposed in order from one another according to the flow direction of the refrigerant.
Further, in the present embodiment, the first flow path is an S-shaped coil, and the introduction pipe 321 and the discharge pipe 322 are straight pipes. The S-shaped coil pipe of the first flow path is of a main heat exchange structure, has a large heat exchange area, is compact in structure and small in occupied space, enables the heat exchange effect of the air flow to reach a preset effect after the air flow passes through the S-shaped coil pipe, and can reduce the air speed of the air flow, so that the air flow reaches a proper air speed and is blown into a room.
In a first embodiment, the invention also discloses a fresh air conditioner, which comprises a heat exchanger 110 and a fresh air system 200. The heat exchanger 110 includes an adjustable flow path of the foregoing construction. The fresh air system 200 includes an air duct 210, and an air outlet of the air duct 210 faces an upstream side of the heat exchange airflow of the heat exchanger 110.
The fresh air conditioner utilizes the fresh air system 200 to introduce fresh air into the indoor return air which enters through the indoor return air inlet of the fresh air conditioner, then the fresh air and the indoor return air exchange heat through the heat exchanger 110 together, and the heat exchange effect is improved by utilizing an adjustable flow path.
Or further, as shown in fig. 3 and 4, the duct 210 passes through the air conditioner pan 500 and is fixedly or detachably connected to the pan 500. The air duct 210 is arranged on the bottom shell 500, and is not installed from the side surface of the air conditioner shell 100, so that the occupied volume of the fresh air conditioner can be reduced, and the fresh air conditioner is suitable for various occasions and spaces.
Or further, a fresh air fan is arranged in the air duct 210. An independent fresh air fan is arranged in the air duct 210, and the wind pressure of the fresh air fan can be adjusted according to the requirement. The size of the wind drum 210 is matched with the size of the fresh air fan. The fan is not required to be arranged in the air duct 210, and the negative pressure is formed by directly utilizing the fan 120 of the fresh air conditioner, so that fresh air is introduced.
Or further, as shown in fig. 6, 7 and 9, the outlet of the air duct 210 is provided with a detachable purifying net 250. The purification net 250 is used for filtering fresh air, and prevents dust from forming accumulation in the air conditioner to influence normal operation of components. Specifically, the outlet of the air duct 210 is provided with a clamping groove, the periphery of the purifying net 250 is provided with a convex hull 251, the purifying net 250 slides into the air duct 210 along the axial direction of the air duct 210, and the convex hull 251 correspondingly abuts against the clamping groove. The purifying net 250 can be made of flexible materials with deformability, so that friction force with the clamping groove is enhanced, and impact of fresh air can be resisted.
Or further, as shown in fig. 3 and 6, the outer circumference of the air duct 210 is provided with a fixing or detachable connection for the air conditioner case 100. The structure of the air duct 210 may be fixed to the air conditioner casing 100 as required, or as shown in the figure, the outer periphery of the air duct 210 is provided with a clip 260, so as to be convenient to form detachable connection with the air conditioner casing 100. When cleaning is needed, only the bottom shell 500 and the air duct 210 are required to be detached, and the processing and the replacement are convenient.
In addition, if the structure of the original flow paths is kept unchanged, the fan 120 (generally a cross-flow fan) in the fresh air conditioner can be directly utilized to change the rotating speed, the input quantity of the fresh air is adjusted, the temperature influence caused by the introduction of the fresh air can be reduced to a lower level, and meanwhile, the indoor air quality is improved.
Example two
The present embodiment is modified from the first embodiment in that a first valve 331 and a second valve 332 are added as shown in fig. 2. A first valve 331 is provided at the junction between the inlet pipe 321 and the inlet pipe 101, and a second valve 332 is provided between the outlet pipe 322 and the header 102. Specifically, the first valve 331 and the second valve 332 are used for opening or closing the second flow path, and when the first valve and the second valve are opened, a working mode of introducing fresh air is suitable for improving indoor air quality, and when the second valve and the second valve are closed, a working mode of indoor air circulation heat exchange is suitable for. Therefore, the opening and closing of the adjustable flow path can be controlled manually and automatically according to different working modes, so that the energy consumption of the heat exchanger 110 is matched with the working modes, the energy consumption is reduced, and the flexibility of adjustment and the applicability to the environment are improved.
According to the technical scheme, the first valve 331 and the second valve 332 for adjusting the opening or closing of the second flow path are added, the flow path number of the heat exchanger 110 is increased, the heat exchange efficiency of the heat exchanger 110 when the fresh air system 200 is opened is met, the second flow path can be closed when the fresh air system 200 is closed and indoor circulation is carried out, the second flow path is prevented from being in a working state all the time, the heat exchange of the heat exchanger 110 is in an interference state, the energy consumption is increased, and the energy efficiency ratio of the fresh air conditioner in different working modes is improved.
In the second embodiment, as shown in fig. 3 and fig. 4, the present invention further provides a fresh air conditioner, including a heat exchanger 110 and a fresh air system 200. The heat exchanger 110 includes an adjustable flow path of the foregoing construction. The fresh air system 200 comprises an air duct 210 and a sealing cover 220 arranged at an inlet of the air duct 210, an air outlet of the air duct 210 faces to an air inlet side of the heat exchanger 110, the air duct 210 is connected with an adjusting circuit, the sealing cover 220 rotates to open or close the air duct 210, and the sealing cover 220 rotates and drives a switch piece 400 to act so as to enable the adjusting circuit to be connected or disconnected, and the adjusting circuit is electrically connected with a first valve 331 and a second valve 332.
According to the fresh air conditioner, the regulating circuit is arranged on the sealing cover 220, the operation and control of the switch piece 400 are realized by utilizing the rotation action of the sealing cover 220, so that the regulating circuit is switched on or off, the opening or closing of the first regulating flow path and the second regulating flow path is realized, the automatic control is realized, the fresh air mode is started, the opening of the adjustable flow path is realized while the fresh air is introduced, and the heat exchange effect is improved.
Specifically, the first valve 331 and the second valve 332 are provided as solenoid valves capable of changing the open-close state according to an electric signal.
Further, as shown in fig. 7, the switch 400 is a press button, which is disposed on the mating surface of the air duct 210, the cover 220 is fastened to the air duct 210, the press button is retracted by the pressure of the cover 220, and the adjusting circuit is disconnected. During the opening of the cover 220, the cover 220 rotates around the rotation shaft 240, and is separated from the press button mounted on the air duct 210, so that the press button is sprung up, and the adjusting circuit is completed, and the first valve 331 and the second valve 332 are opened. During the closing process of the cover 220, when the cover 220 rotates around the rotating shaft 240, the press button installed on the air duct 210 is touched to be pressed down, so that the adjusting circuit is disconnected, and the first valve 331 and the second valve 332 are closed. The adjusting circuit is started and disconnected by opening and closing the sealing cover 220, so that the fresh air flow, the adjusting circuit and the adjustable flow path are simultaneously opened, the linkage of the working modes is realized, and the degree of automation is improved.
Or further, a hollow groove is formed in the side wall of the air duct 210, and the switch piece 400 is connected with the adjusting circuit through the hollow groove by a cable. Because the regulating circuit needs the cable to realize electric connection, utilize the hollow groove to realize holding of cable, improve the protection of cable, reduce dust and pile up and the erosion of moisture.
Example III
In the second embodiment, the modification is made on the basis of the second embodiment, except that the cover 220 is rotated by the control member to open or close the duct 210 as shown in fig. 7 and 8. The control member is utilized to control the rotation of the sealing cover 220, which is beneficial to providing an automatic structural foundation for the overall structure of the air conditioner and realizing the automatic switching of different modes.
Specifically, as shown in fig. 2, 6 and 7, the control member includes a magnet 232 disposed at a free end of the cover 220, and an electromagnet 231 disposed on the air conditioner casing 100, wherein the magnetic force of the electromagnet 231 causes the cover 220 to be fastened to the air duct 210. The control member is specifically set as a magnet or an electromagnet, when fresh air is not needed to be introduced, the electromagnet 231 is electrified to generate magnetic force, the closing cover 220 and the air barrel 210 are kept buckled, when fresh air is needed to be introduced, the electromagnet 231 is powered off, the closing cover 220 loses the adsorption effect of the magnetic force, and the valve is opened under the action of gravity or elasticity.
Further, the free end of the cover 220 extends outwards to form a supporting platform 221, the inner wall of the supporting platform 221 is provided with a buckle 222, and the magnet 232 is arranged on the supporting platform 221 and abuts against the buckle 222. The magnet 232 is disposed at the free end of the cover 220, and the support stand 221 and the buckle 222 provide a receiving space for the magnet 232 and can be kept relatively fixed with the cover 220, so that the magnet 232 is prevented from falling off during the rotation of the cover 220. The number of the buckles 222 may be one or more as needed for the purpose of securing the position of the magnet 232.
Example IV
The present embodiment may be modified on the basis of the first, second or third embodiments, as shown in fig. 7 and 8, and is different in that the cover 220 is disposed on the outer peripheral surface of the air duct 210 through the rotating shaft 240, and a return spring 241 is sleeved on the outer periphery of the rotating shaft 240. In this embodiment, the rotating shaft 240 is configured to be detachable from the air duct 210, which is convenient for modular production and processing, convenient for installation and maintenance, and the opening speed of the sealing cover 220 is increased by using the return spring 241, so as to improve the agility of the sealing cover 220.
Specifically, when the present embodiment is used in combination with the third embodiment, the rotation of the cover 220 is achieved by the cooperation of the control member and the rotation shaft 240. For example, the electromagnet 231 is electrified to generate magnetic force which overcomes the elasticity of the return spring 241, the sealing cover 220 is buckled with the air duct 210, the electromagnet 231 is powered off, the magnetic force disappears, and the sealing cover 220 rotates to be separated from the sealing cover 220 under the elasticity of the return spring 241. Wherein, one end of the return spring 241 is abutted against the cover 220, and the other end is abutted against the rotating shaft 240.
Specifically, as shown in fig. 8, the rotating shaft 240 includes a positioning table, and the positioning table is clamped with the air duct 210. The rotating shaft 240 is independently arranged, and in order to ensure the relative stability with the air duct 210 in the use process, the positioning table is utilized to limit the position deformity of the rotating shaft 240.
Specifically, the positioning table includes a first clamping block 242 and a second clamping block 243, a first clamping position and a second clamping position are provided on the air duct 210, the first clamping block 242 is in clamping connection with the first clamping position, the second clamping block 243 is in clamping connection with the second clamping position, and the clamping directions of the first clamping block 242 and the second clamping block 243 are opposite. The positioning table receives limited acting forces in two directions, so that the rotating shaft 240 is effectively prevented from shaking along with the rotation of the sealing cover 220, the sealing cover 220 is kept stable in rotation, and the positioning table can be accurately matched with the air duct 210 after being opened and closed for many times.
On the basis of the structures of the second embodiment, the third embodiment and the fourth embodiment, the invention also discloses a fresh air adjusting method of the fresh air conditioner, which comprises the following steps:
the fresh air system 200 is turned on manually or automatically,
The cover 220 is opened, the regulating circuit is turned on, the first valve 331 and the second valve 332 are opened, fresh air enters the air intake side of the heat exchanger 110, the first regulating line and the second regulating line are opened,
The fresh air and the indoor return air are mixed and blown out indoors after heat exchange by the heat exchanger 110.
The fresh air regulating method is suitable for various spaces such as factory buildings, markets, living rooms and bedrooms. When fresh air is introduced, the regulating circuit is connected, the adjustable flow path enters the refrigerant, so that the heat exchange efficiency is improved, the indoor air outlet temperature is approximately the same as the preset air outlet temperature of the air conditioner, and the problem of low heat exchange efficiency of the fresh air conditioner is solved.
The fresh air conditioner has the advantages and positive effects that the first flow path is an integral flow path, the adjusting section is arranged between the inlet end 311 and the outlet end 312, the second flow path is additionally arranged on the adjusting section of the first flow path, and therefore the first flow path is divided into two sections of strokes, the first adjusting pipeline is a front section flow path passing through the first flow path, and the second adjusting pipeline utilizes a rear section flow path of the first flow path. The first regulating pipeline and the second regulating pipeline both shorten the flowing length of the refrigerant, because the longer the flow is, the closer the temperature of the refrigerant in the heat exchanger 110 is to the windward side temperature, resulting in insufficient heat exchange capacity, therefore, the shortening of the heat exchange flow can effectively maintain the temperature and heat exchange capacity of the refrigerant, and the second regulating pipeline also increases the flow path number, so that the output of the refrigerant is increased, namely, the application increases the heat exchange efficiency through the dual functions of increasing the flow of the refrigerant and shortening the flow, thereby coping with the temperature influence caused by the addition of fresh air, and effectively improving the heat exchange capacity and the temperature regulating capacity.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (15)
1. An adjustable flow path comprising a liquid inlet pipe (101) and a gas collecting pipe (102), characterized in that it comprises:
A first flow path including a leading-in end (311) and a discharging end (312), wherein the leading-in end (311) is connected with the liquid inlet pipe (101), the discharging end (312) is connected with the gas collecting pipe (102), an adjusting section is arranged between the leading-in end (311) and the discharging end (312), and
A second flow path provided with an introduction pipe (321) and a discharge pipe (322), wherein the introduction pipe (321) is communicated with the liquid inlet pipe (101) and the adjusting section, and the discharge pipe (322) is communicated with the adjusting section and the gas collecting pipe (102);
The refrigerant sequentially flows through the introducing end (311) and the discharging pipe (322) to form a first adjusting pipeline, and the refrigerant sequentially flows through the introducing pipe (321) and the discharging end (312) to form a second adjusting pipeline;
the first flow path is an S-shaped coil pipe, and the introducing pipe (321) and the discharging pipe (322) are straight pipelines.
2. The adjustable flow path according to claim 1, wherein a first valve (331) is provided at the connection of the inlet pipe (321) and the inlet pipe (101), and a second valve (332) is provided between the outlet pipe (322) and the gas collecting pipe (102).
3. A fresh air conditioner, comprising:
A heat exchanger (110) comprising an adjustable flow path as claimed in claim 1, and
The fresh air system (200) comprises an air duct (210), and an air outlet of the air duct (210) faces to the upstream side of heat exchange air flow of the heat exchanger (110).
4. A fresh air conditioner, comprising:
a heat exchanger (110) comprising an adjustable flow path according to claim 2;
Fresh air system (200) comprising an air duct (210) and a sealing cover (220) arranged at the inlet of the air duct (210), wherein the air outlet of the air duct (210) faces the air inlet side of the heat exchanger (110), and
A regulating system comprising a switch (400) placed on the air duct (210), the switch (400) being connected to a regulating circuit electrically connected to the first valve (331) and to the second valve (332);
the cover (220) rotates to open or close the air duct (210), and the cover (220) rotates to drive the switch piece (400) to act so as to enable the adjusting circuit to be switched on or off.
5. The fresh air conditioner according to claim 4, wherein the switch member (400) is a press button, the press button is disposed on a mating surface of the air duct (210), the sealing cover (220) is buckled to the air duct (210), the press button is retracted under the pressure of the sealing cover (220), and the adjusting circuit is disconnected.
6. The fresh air conditioner according to claim 4, wherein a hollow groove is formed in a side wall of the air duct (210), and the switch member (400) is connected with the adjusting circuit by passing a cable through the hollow groove.
7. The fresh air conditioner according to claim 4, further comprising a control member provided on the air conditioner case (100), wherein the cover (220) is rotated by the control member to open or close the duct (210).
8. The fresh air conditioner according to claim 7, wherein the control member includes an electromagnet (231) provided on the air conditioner case (100), and a magnet (232) provided at a free end of the cover (220), and wherein the electromagnet (231) is energized to generate a magnetic force to cause the cover (220) to be fastened to the duct (210).
9. The fresh air conditioner according to claim 8, wherein a support stand (221) is provided at the free end of the cover (220) and extends outwards, a buckle (222) is provided on the inner wall of the support stand (221), and the magnet (232) is disposed on the support stand (221) and abuts against the buckle (222).
10. The fresh air conditioner according to claim 4, wherein the cover (220) is disposed on the outer peripheral surface of the air duct (210) through a rotating shaft (240), and a return spring (241) is sleeved on the outer periphery of the rotating shaft (240).
11. The fresh air conditioner according to claim 10, wherein the rotating shaft (240) comprises a positioning table, and the positioning table is clamped with the air duct (210).
12. The fresh air conditioner according to claim 11, wherein the positioning table comprises a first clamping block (242) and a second clamping block (243), a first clamping position and a second clamping position are arranged on the air duct (210), the first clamping block (242) is in fit connection with the first clamping position, the second clamping block (243) is in fit connection with the second clamping position, and the clamping directions of the first clamping block (242) and the second clamping block (243) are opposite.
13. Fresh air conditioner according to claim 3 or 4, characterized in that the air duct (210) passes through the air conditioner bottom shell (500) and is fixedly or detachably connected with the bottom shell (500).
14. Fresh air conditioner according to claim 3 or 4, characterized in that a fresh air fan is arranged inside the air duct (210).
15. A fresh air conditioning method for a fresh air conditioner using the fresh air conditioner according to any one of claims 4 to 12, comprising the steps of:
the fresh air system (200) is started manually or automatically,
The sealing cover (220) is opened, the regulating circuit is connected, the first valve (331) and the second valve (332) are opened, fresh air enters the air inlet side of the heat exchanger (110), the first regulating pipeline and the second regulating pipeline are opened, and the refrigerant exchanges heat with the mixed air of the fresh air and the indoor return air through the first flow path, the first regulating pipeline and the second regulating pipeline respectively, and is blown out indoors after exchanging heat through the heat exchanger (110);
the fresh air system (200) is manually or automatically closed,
The sealing cover (220) is closed, the regulating circuit is disconnected, the first valve (331) and the second valve (332) are disconnected, the first regulating pipeline and the second regulating pipeline are disconnected, and the refrigerants exchange heat with indoor return air through the first flow channel respectively and blow out indoors after exchanging heat through the heat exchanger (110).
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| CN115077085A (en) * | 2022-04-28 | 2022-09-20 | 青岛海尔空调器有限总公司 | Fresh air filtering joint, fresh air pipe and fresh air conditioner |
| CN115077086A (en) * | 2022-04-28 | 2022-09-20 | 青岛海尔空调器有限总公司 | Fresh air filtering joint, fresh air pipe and fresh air conditioner |
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| JPH09145198A (en) * | 1995-11-17 | 1997-06-06 | Sanyo Electric Co Ltd | Heat exchanger |
| CN1252433C (en) * | 2004-07-23 | 2006-04-19 | 广东科龙电器股份有限公司 | Double row pipeline heat exchanging evaporator |
| CN104515318B (en) * | 2013-09-30 | 2016-08-31 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN104089427B (en) * | 2014-06-24 | 2017-01-18 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| WO2018098991A1 (en) * | 2016-11-29 | 2018-06-07 | 美的集团武汉制冷设备有限公司 | Evaporator pipeline, evaporator, and air conditioner |
| CN210891925U (en) * | 2019-09-09 | 2020-06-30 | 宁波奥克斯电气股份有限公司 | Indoor heat exchanger and air conditioner |
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