CN104748255A - Air-conditioner - Google Patents
Air-conditioner Download PDFInfo
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- CN104748255A CN104748255A CN201510145453.8A CN201510145453A CN104748255A CN 104748255 A CN104748255 A CN 104748255A CN 201510145453 A CN201510145453 A CN 201510145453A CN 104748255 A CN104748255 A CN 104748255A
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- port
- air
- conditioner
- valve
- electric control
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
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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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control 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
- 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
- F24F11/41—Defrosting; Preventing freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air-conditioner. The air-conditioner comprises a compressor, a reversing assembly, an outdoor heat exchanger, an indoor heat exchanger, a first one-way throttling valve, a second one-way throttling valve, a first refrigerant flowing path, a second refrigerant flowing path, a three-way valve and an electric control heat dissipater assembly, wherein the first refrigerant flowing path and the second refrigerant flowing path are connected in parallel. The first one-way throttling valve comprises a first valve port and a second valve port, and the first valve port is connected with the outdoor heat exchanger. The second one-way throttling valve comprises a third valve port and a fourth valve port, and the third valve port is connected with the indoor heat exchanger. The first refrigerant flowing path and the second refrigerant flowing path are connected with the second valve port respectively, a fifth port of the three-way valve is connected with the fourth valve port, a sixth port of the three-way valve is connected with the first refrigerant flowing path, and a seventh port of the three-way valve is connected with the second refrigerant flowing path. The electric control heat dissipater assembly comprises an electric control component and a heat dissipation assembly, and the heat dissipation assembly is connected to the first refrigerant flowing path in series. The air-conditioner can avoid the phenomena that condensate water is generated on the electric control water and the temperature of the electric control component is too low.
Description
Technical field
The present invention relates to air-conditioning technical field, specifically, particularly relate to a kind of air-conditioner.
Background technology
Along with the development of air-conditioning technical, convertible frequency air-conditioner obtains general application in industry.But in the automatically controlled control system in the outdoor of transducer air conditioning, frequency-variable module heating is large, limits compressor high frequency in high temperature environments and runs.The automatically controlled radiating mode that Most current uses, mostly is metal fin and is dispelled the heat by cross-ventilation.But under outdoor high temperature environment, the heat radiation of this radiating mode is poor, usual way reduces automatically controlled heating by reducing compressor operation frequency to ensure that air-conditioner normally runs.Have impact on the refrigeration of convertible frequency air-conditioner in the higher situation of outdoor application environment temperature greatly, affect user's comfort.Existing exist the too low problem producing condensation water or automatically controlled for off-premises station temperature fallen to the technology of the automatically controlled heat radiation of off-premises station by low temperature refrigerant, and in the process heating defrost, can cause thermal shock, affect automatically controlled dependability and safety to automatically controlled.If publication number is CN102844980, name is called refrigerating plant, and not only refrigerant system design complexity, poor in processability, programme-control complexity and cost are high, are difficult to form product.And the heat of the refrigerant absorbed power device using a throttling part may be there is during kind of refrigeration cycle, larger to efficiency loss.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind of air-conditioner, avoid on electric control element, produce condensation water and the temperature of electric control element is fallen too low, reliability and the security of electric control element can be improved.
According to the air-conditioner of the embodiment of the present invention, comprising: compressor, described compressor has exhaust outlet and gas returning port; Commutation assembly, described commutation assembly comprises the first port to the 4th port, one of them conducting in described first port and the second port and the 3rd port, another conducting in described 4th port and described second port and described 3rd port, described first port is connected with described exhaust outlet, and described 4th port is connected with described gas returning port; Outdoor heat exchanger and indoor heat exchanger, the first end of described outdoor heat exchanger is connected with described second port, and the first end of described indoor heat exchanger is connected with described 3rd port; First one-way throttle valve, described first one-way throttle valve comprises the first valve port and the second valve port, described first valve port is connected with the second end of described outdoor heat exchanger, on from described first valve port to the circulating direction of described second valve port, the complete conducting of described first one-way throttle valve, on from described second valve port to the circulating direction of described first valve port, described first one-way throttle valve is throttle part; Second one-way throttle valve, described second one-way throttle valve comprises the 3rd valve port and the 4th valve port, described 3rd valve port is connected with the second end of described indoor heat exchanger, on from described 3rd valve port to the circulating direction of described 4th valve port, the complete conducting of described second one-way throttle valve, on from described 4th valve port to the circulating direction of described 3rd valve port, described second one-way throttle valve is throttle part; The first refrigerant flow be connected in parallel and the second refrigerant flow, described first refrigerant flow is connected with described second valve port respectively with described second refrigerant flow; Electric radiator assembly, described electric radiator assembly comprises electric control element and the radiating subassembly for dispelling the heat to described electric control element, and described radiating subassembly is connected on described first refrigerant flow; Triple valve, described triple valve comprises five-port to the 7th port, one of them conducting in described five-port and described 6th port and described 7th port, described five-port is connected with the 4th valve port of described second one-way throttle valve, described 6th port is connected with described first refrigerant flow, and described 7th port is connected with described second refrigerant flow.
According to the air-conditioner of the embodiment of the present invention, by being provided with the first one-way throttle valve, the second one-way throttle valve, triple valve and radiating subassembly, when refrigeration mode, close or a little more than environment temperature the refrigerant of temperature can be made to flow through radiating subassembly to dispel the heat to electric control element.Effectively (even if when environment temperature is higher) can be dispelled the heat to electric control element thus when not reducing the operating frequency of compressor, thus the refrigeration of air-conditioner in the higher situation of environment temperature can be guaranteed, improve user's comfort.
And, due to the temperature that flows into the refrigerant of radiating subassembly close to or a little more than environment temperature, therefore can avoid on electric control element, produce condensation water and the temperature of electric control element is fallen too low, thus reliability and the security of electric control element can be improved.When the pattern heated or freeze, five-port and the 6th port conducting, the temperature entering into the refrigerant of electric control element close to or a little more than environment temperature, can avoid on electric control element, produce condensation water and the temperature of electric control element is fallen too low, when defrost pattern, five-port and the 7th port conducting, the refrigerant of discharging from the first one-way throttle valve is drained into indoor heat exchanger by the second refrigerant flow, and the first refrigerant flow can not be flowed through, the temperature of electric control element can be prevented thus too low, the reliability of electric control element when ensureing that air-conditioner runs.
Preferably, described commutation assembly is cross valve.
In some embodiments of the invention, described radiating subassembly comprises: radiating tube, and described radiating tube is connected on described first refrigerant flow; Radiation shell, described radiating tube is located on described radiation shell, and described radiation shell contacts with described electric control element and is used for dispelling the heat to described electric control element.
Particularly, described radiation shell comprises: heat-radiating substrate, and described heat-radiating substrate contacts with described electric control element; Fixed dam, described fixed dam is located on described heat-radiating substrate, limits the spatial accommodation for holding described radiating tube between described fixed dam and described heat-radiating substrate.
In concrete examples more of the present invention, the two ends of described radiating tube stretch out to be connected on described first refrigerant flow from the opposing sidewalls of described radiation shell respectively.
In other concrete examples of the present invention, the two ends of described radiating tube stretch out to be connected on described first refrigerant flow from the same side of described radiation shell respectively.
According to some embodiments of the present invention, described fixed dam is provided with fixed leg, and described heat-radiating substrate is provided with fixing hole, and described fixed leg is connected with described fixing hole riveted.
In further embodiment of the present invention, air-conditioner also comprises the temperature-detecting device for detecting described electric control element temperature, described electric control element is electrically connected with described temperature-detecting device and described triple valve respectively, and described electric control element controls described five-port and described 6th port or the 7th port conducting according to the testing result of described temperature-detecting device.
According to the control method of air-conditioner of the present invention, described air-conditioner is above-mentioned air-conditioner, and described control method comprises the steps:
S1: air-conditioner start runs, and detects the running status of described air-conditioner;
S2: when detecting that air-conditioner is heating operation, described five-port and described 6th port conducting, when detecting that air-conditioner is refrigerating operaton, described five-port and described 6th port conducting;
S3: when detecting in step S2 that described air conditioner heat-production runs, after described air-conditioner runs a period of time, detects air-conditioner and whether starts defrost;
S4: when detecting that air-conditioner starts defrost, described triple valve switches to described five-port and the 7th port conducting, when the non-defrost of air-conditioner, keeps described five-port and described 6th port conducting;
Whether S5: whether defrost completes to detect air-conditioner, when air-conditioner does not complete defrost, keeps described five-port and described 7th port conducting, when air-conditioner completes defrost, detect air-conditioner and shut down;
S5: when detecting that air-conditioner does not shut down, turn back to step S1, during air-conditioner shutdown, terminates.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the air-conditioner according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of the first one-way throttle valve according to the embodiment of the present invention;
Fig. 3 is the schematic diagram of electric radiator assembly according to an embodiment of the invention;
Fig. 4 is the schematic diagram of electric radiator assembly in accordance with another embodiment of the present invention.
Fig. 5 is the flow chart of the control method of air-conditioner according to the embodiment of the present invention.
Reference numeral:
Air-conditioner 100,
Compressor 1, exhaust outlet a, gas returning port b,
Commutation assembly 2, first port c, the second port d, the 3rd port e, the 4th port f,
Outdoor heat exchanger 3, indoor heat exchanger 4,
Triple valve 5, five-port p, the 6th port q, the 7th port r,
Electric radiator assembly 6, electric control element 60, radiating subassembly 61, radiating tube 601, radiation shell 602, heat-radiating substrate 6020, fixed dam 6021,
First one-way throttle valve 7, first valve port m, the second valve port n, housing 163, chamber 1631, spool 164, passage 1641, first paragraph 1642, second segment 1643, intercommunicating pore 1644, movable part 165, throttling passage 1651,
Second one-way throttle valve 8, the 3rd valve port h, the 4th valve port j, the first refrigerant flow 9, second refrigerant flow 10.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Describe the air-conditioner 100 according to the embodiment of the present invention in detail below with reference to Fig. 1-Fig. 4, wherein air-conditioner 100 has heating mode, refrigeration mode and heating and defrosting pattern.
As shown in Figure 1, according to the air-conditioner 100 of the embodiment of the present invention, comprising: compressor 1, commutation assembly 2, outdoor heat exchanger 3, indoor heat exchanger 4, first refrigerant flow 9, second refrigerant flow 10, electric radiator assembly 6, first one-way throttle valve 7 and the second one-way throttle valve 8.Wherein, compressor 1 has exhaust outlet a and gas returning port b, needs to be described, and the structure of compressor 1 and operation principle etc. are prior art, are just not described in detail here.
Commutation assembly 2 comprises the first port c, the second port d, the 3rd port e and the 4th port f, one of them conducting in first port c and the second port d and the 3rd port e, another conducting in 4th port f and the second port d and the 3rd port e, first port c is connected with exhaust outlet a, and the 4th port f is connected with gas returning port b.That is, when the first port c is communicated with the second port d, the 4th port f is communicated with the 3rd port e.When the first port c is communicated with the 3rd port e, the 4th port f is communicated with the second port d.
The first end of outdoor heat exchanger 3 is connected with the second port d, and the first end of indoor heat exchanger 4 is connected with the 3rd port e.
First one-way throttle valve 7 comprises the first valve port m and the second valve port n, first valve port m is connected with the second end of outdoor heat exchanger 3, on from the first valve port m to the circulating direction of the second valve port n, the conducting completely of first one-way throttle valve 7, on from the second valve port n to the circulating direction of the first valve port m, the first one-way throttle valve 7 is throttle part.
Second one-way throttle valve 8 comprises the 3rd valve port h and the 4th valve port j, 3rd valve port h is connected with the second end of indoor heat exchanger 4, on from the 3rd valve port h to the circulating direction of the 4th valve port j, the conducting completely of second one-way throttle valve 8, on from the 4th valve port j to the circulating direction of the 3rd valve port h, the second one-way throttle valve 8 is throttle part.
First refrigerant flow 9 and the second refrigerant flow 10 are connected in parallel, and the first refrigerant flow 9 is connected with the second valve port n respectively with the second refrigerant flow 10.In other words, refrigerant can enter into the first refrigerant flow 9 or the second refrigerant flow 10 by the second valve port n.
Electric radiator assembly 6 comprises electric control element 60 and the radiating subassembly 61 for dispelling the heat to electric control element 60, and radiating subassembly 61 is connected on the first refrigerant flow 9.
That is, when refrigerant flows through the first refrigerant flow 9, electric control element 60 on automatically controlled radiating subassembly 6 can be dispelled the heat by refrigerant, when refrigerant flows through the second refrigerant flow 10 and does not flow through the first refrigerant flow 9, electric control element 60 on automatically controlled radiating subassembly 6 can only (such as, air-cooled) dispel the heat by other means.
Triple valve 5 comprises one of them conducting in five-port p, the 6th port q and the 7th port r, five-port p and the 6th port q and the 7th port r.In other words, as five-port p and the 6th port q conducting, five-port p and the 7th port r not conducting, as five-port p and the 7th port r conducting, five-port p and the 6th port q not conducting.
Wherein, five-port p is connected with the 4th valve port j of the second one-way throttle valve 8, and the 6th port q is connected with the first refrigerant flow 9, and the 7th port r is connected with the second refrigerant flow 10.When five-port p and the 6th port q conducting, refrigerant flows through the first refrigerant flow 9 and can not flow through the second refrigerant flow 10; When five-port p is connected with the 7th port r, refrigerant flows through the second refrigerant flow 10 and can not flow through the first refrigerant flow 9.
Structure and the flow process of refrigerant in the first one-way throttle valve 7 of the first one-way throttle valve 7 is described below in detail for the first one-way throttle valve 7.Need to be described, the structure of the second one-way throttle valve 8 is identical with the structure of the first one-way throttle valve 7, and the operation principle of the second one-way throttle valve 8 is identical with the operation principle of the first one-way throttle valve 7, is just not described in detail here.
As shown in Figure 2, the first one-way throttle valve 7 can comprise: housing 163, spool 164 and movable part 165.Wherein, have chamber 1631 in housing 163, spool 164 is located in chamber 1631.Spool 164 has the passage 1641 be communicated with chamber 1631, and the first end of passage 1641 is located at the position of contiguous first valve port m, and the second end of passage 1641 is located at the position of contiguous second valve port n.The second segment 1643 that passage 1641 comprises first paragraph 1642 and is communicated with first paragraph 1642, the cross-sectional area of first paragraph 1642 is less than the cross-sectional area of second segment 1643, the periphery wall of first paragraph 1642 and the inwall of chamber 1631 are fitted, between the periphery wall of second segment 1643 and the inwall of chamber 1631, there is gap, and the sidewall of second segment 1643 is provided with multiple intercommunicating pore 1644 be communicated with chamber 1631.Preferably, the area sum of the cross section of multiple intercommunicating pore 1644 is more than or equal to the cross-sectional area of second segment 1643.Movable part 165 is located at slidably to open or close intercommunicating pore 1644 in second segment 1643, and the periphery wall of movable part 165 and the inwall of second segment 1643 are fitted.Movable part 165 is provided with throttling passage 1651, the first end of throttling passage 1651 is located at the position of contiguous first valve port m, second end of throttling passage 1651 is located at the position of contiguous second valve port n, and the cross-sectional area of throttling passage 1651 is much smaller than the cross-sectional area of second segment 1643.When movable part 165 moves to the position of contiguous second valve port n, movable part 165 opens intercommunicating pore 1644, and the second segment 1643 of passage 1641 can be communicated with chamber 1631 by intercommunicating pore 1644; When movable part 165 moves to the position of contiguous first valve port m, movable part 165 closes intercommunicating pore 1644, and passage 1641 cannot be communicated with chamber 1631 by intercommunicating pore 1644, and passage 1641 is communicated with chamber 1631 by throttling passage 1651.
When refrigerant flows to the second valve port n by the first valve port m, direction as denoted by the arrow a in figure 2, refrigerant enters in chamber 1631 by the first valve port m, enter in the first paragraph 1642 of passage 1641 by the first end of the passage 1641 of spool 164 again, under the promotion of refrigerant, movable part 165 moves along the direction shown in arrow A in second segment 1643, movable part 165 opens intercommunicating pore 1644, after refrigerant enters into second segment 1643 by first paragraph 1642, enter in chamber 1631 by intercommunicating pore 1644, now the first one-way throttle valve 7 plays tube connector, namely the pressure at passage 1641 two ends is substantially equal, when refrigerant flows to the first valve port m by the second valve port n, direction as designated by arrows b in fig, refrigerant enters in chamber 1631 by the second valve port n, enter in the second segment 1643 of passage 1641 by the second end of the passage 1641 of spool 164 again, under the promotion of refrigerant, movable part 165 moves along the direction shown in arrow B in second segment 1643, movable part 165 closes intercommunicating pore 1644, after refrigerant enters into second segment 1643 in chamber 1631, first paragraph 1642 is entered into by throttling passage 1651, being flowed out by the first end of passage 1641 enters in chamber 1631 again, because the cross-sectional area of throttling passage 1651 is much smaller than the cross-sectional area of second segment 1643, the pressure difference at passage 1641 two ends is larger, now the first one-way throttle valve 7 throttling actions.
Below with reference to Fig. 1, the course of work according to the air-conditioner 100 of the embodiment of the present invention is described.
When air-conditioner 100 is in refrigeration mode, the first port c of commutation assembly 2 is communicated with the second port d and the 3rd port e is communicated with the 4th port f, five-port p and the 6th port q conducting.
As shown in the solid arrow in Fig. 1, the refrigerant of discharging from the exhaust outlet a of compressor 1 carries out condensation by the first port c and the second port d inflow outdoor heat exchanger 3, the refrigerant that heat exchanger 3 is discharged outdoor enters into the first one-way throttle valve 7 by the first valve port m, the effect of tube connector is played in the now complete conducting of the first one-way throttle valve 7, now triple valve 5 five-port p can with the 6th port q conducting, therefore from the first one-way throttle valve 7, flow out refrigerant can flow in the first refrigerant flow 9, electric control element 60 on radiating subassembly 61 on first refrigerant flow 9 is dispelled the heat, the refrigerant flowed out from radiating subassembly 61 is entered to the second one-way throttle valve 8 by triple valve 5 and the 4th valve port j.Because the second one-way throttle valve 8 is being throttle part from the 4th valve port j to the circulating direction of the 3rd valve port h, the refrigerant therefore convergeed in the second one-way throttle valve 8 carries out reducing pressure by regulating flow in the second one-way throttle valve 8.
The refrigerant of discharging from the second one-way throttle valve 8 is drained into freeze to indoor environment indoor heat exchanger 4, and the refrigerant that heat exchanger 4 is discharged indoor is expelled back into compressor 1 by the 3rd port e, the 4th port f and gas returning port b, completes kind of refrigeration cycle.
When air-conditioner 100 is in refrigeration mode, the temperature of the refrigerant of discharging due to heat exchanger 3 is outdoor a little more than environment temperature and lower than the temperature of radiating subassembly 61, therefore when temperature flows through radiating subassembly 61 a little more than the refrigerant of environment temperature, can dispel the heat to electric control element 60, effectively can also prevent the generation of condensed water simultaneously.
When air-conditioner 100 is in heating mode, the first port c of commutation assembly 2 is communicated with the 3rd port e and the second port d is communicated with the 4th port f, the five-port p of triple valve 5 can with the 6th port q conducting.As shown in Figure 1, the refrigerant of discharging from the exhaust outlet a of compressor 1 is drained into indoor heat exchanger 4 by the first port c and the 3rd port e and carries out condensation, the refrigerant that heat exchanger 4 is discharged indoor is drained into the second one-way throttle valve 8 from the 3rd valve port h, because the second one-way throttle valve 8 is in the complete conducting to the circulating direction of the 4th valve port j from the 3rd valve port h, therefore the second one-way throttle valve 8 plays the effect of tube connector.Now, the five-port p of triple valve 5 can with the 6th port q conducting, therefore from the second one-way throttle valve 8, flow out refrigerant can flow in the first refrigerant flow 9, dispel the heat to the electric control element 60 on the radiating subassembly 61 on the first refrigerant flow 9, the refrigerant flowed out from radiating subassembly 61 is drained into the first one-way throttle valve 7 by the second valve port n.
Due to the first one-way throttle valve 7 from the second valve port n to the circulating direction of the first valve port m be throttle part, therefore refrigerant carries out reducing pressure by regulating flow in the first one-way throttle valve 7, enter into outdoor heat exchanger 3 from the refrigerant of the first one-way throttle valve 7 discharge to evaporate, the refrigerant that heat exchanger 3 is discharged outdoor is expelled back in compressor 1 by the second port d, the 4th port f and gas returning port b, completes and heats circulation.
When air-conditioner 100 is in heating mode, the temperature of the refrigerant of discharging due to heat exchanger 4 is indoor a little more than environment temperature and lower than the temperature of radiating subassembly 61, temperature flows through radiating subassembly 61 a little more than the refrigerant of environment temperature, can dispel the heat to electric control element 60, effectively can also prevent the generation of condensed water simultaneously, the reliability of electric control element 60 during air-conditioner 100 heating operation can be ensured.
When air-conditioner 100 heats defrost, due to incipient stage of defrost, the refrigerant temperature that flows out of heat exchanger 3 is very low outdoor, in this case refrigerant flow through radiating subassembly 61 can produce thermal shock to electric control element 60.Therefore preferably, when air-conditioner 100 is in heating and defrosting pattern, in the incipient stage of heating and defrosting, the five-port p of triple valve 5 and the 7th port r conducting, refrigerant is made not flow through the first refrigerant flow 9, refrigerant flows through completely from the second refrigerant flow 10, that is makes refrigerant not flow through radiating subassembly 61, prevents refrigerant from the thermal shock of electric control element 60 is affected to the service life of electric control element 60.When air-conditioner 100 is in defrosting mode, the first port c of commutation assembly 2 is communicated with the second port d and the 3rd port e is communicated with the 4th port f, five-port p and the 7th port r conducting.
According to the air-conditioner 100 of the embodiment of the present invention, by being provided with the first one-way throttle valve 7, second one-way throttle valve 8, triple valve 5 and radiating subassembly 61, when refrigeration mode, close or a little more than environment temperature the refrigerant of temperature can be made to flow through radiating subassembly 61 to dispel the heat to electric control element 60.Effectively (even if when environment temperature is higher) can be dispelled the heat to electric control element 60 thus when not reducing the operating frequency of compressor 1, thus the refrigeration of air-conditioner 100 in the higher situation of environment temperature can be guaranteed, improve user's comfort.
And, due to flow into radiating subassembly 61 refrigerant temperature close to or a little more than environment temperature, therefore can avoid on electric control element 60, produce condensation water and the temperature of electric control element 60 is fallen too low, thus reliability and the security of electric control element 60 can be improved.Heat or refrigeration mode time, five-port p and the 6th port q conducting, the temperature entering into the refrigerant of electric control element 60 close to or a little more than environment temperature, can avoid on electric control element 60, produce condensation water and the temperature of electric control element 60 is fallen too low; When defrost pattern, five-port p and the 7th port r conducting, the refrigerant of discharging from the first one-way throttle valve 7 is drained into indoor heat exchanger 4 by the second refrigerant flow 10, and the first refrigerant flow 9 can not be flowed through, electric control element 60 temperature can be prevented thus too low, the reliability of electric control element 60 when ensureing that air-conditioner 100 runs.
As shown in Figure 1, in a preferred embodiment of the invention, the assembly 2 that commutates is cross valve.It is appreciated of course that, the structure of commutation assembly 2 is not limited thereto, commutation assembly 2 can comprise the first pipeline to the 4th pipeline, first pipeline joins end to end successively to the 4th pipeline, first pipeline is in series with the first on-off valve, second pipe is in series with the second on-off valve, 3rd pipeline is in series with the 3rd on-off valve, 4th pipeline is in series with the 4th on-off valve, the junction of the first pipeline and second pipe limits the first port c, the junction of the first pipeline and the 4th pipeline limits the second port d, the junction of the 4th pipeline and the 3rd pipeline limits the 4th port f, the junction of the 3rd pipeline and second pipe limits the 3rd port e, first on-off valve and the 3rd on-off valve are opened simultaneously or close, second on-off valve and the 4th on-off valve are opened simultaneously or close.
As shown in Figure 3 and Figure 4, according to one embodiment of present invention, radiating subassembly 61 can comprise: radiating tube 601 and radiation shell 602.Preferably, radiating tube 601 is copper pipe.Thus, the heat exchanger effectiveness of radiating tube 601 can be improved.Wherein, radiating tube 601 is connected on the first refrigerant flow 9, and refrigerant can flow in radiating tube 601.Radiating tube 601 is located on radiation shell 602, and radiation shell 602 contacts with electric control element 60 and is used for dispelling the heat to electric control element 60.Thus, the radiating efficiency of radiating subassembly 61 can be improved, ensure the operation stability of electric control element 60.
Further, radiation shell 602 can comprise: heat-radiating substrate 6020 and fixed dam 6021.Wherein, heat-radiating substrate 6020 contacts with electric control element 60, and the temperature of electric control element 60 can directly be passed on heat-radiating substrate 6020.Fixed dam 6021 is located on heat-radiating substrate 6020, and fixed dam 6021 and heat-radiating substrate 6020 directly can carry out heat exchange thus.Be understandable that, do not do particular determination for the connected mode between fixed dam 6021 and heat-radiating substrate 6020, such as, in example as shown in Figure 3 and Figure 4, fixed dam 6021 is fitted on heat-radiating substrate 6020.Further, fixed dam 6021 is provided with fixed leg (scheming not shown), and heat-radiating substrate 6020 is provided with fixing hole (scheming not shown), and fixed leg is connected with fixing hole riveted.Thus, the contact area between fixed dam 6021 and heat-radiating substrate 6020 can be increased, and then improve the heat exchanger effectiveness between fixed dam 6021 and heat-radiating substrate 6020.
For improving the radiating efficiency of radiating subassembly 61 further, between fixed dam 6021 and heat-radiating substrate 6020, limit the spatial accommodation for holding radiating tube 601.Thus, the heat exchange area between fixed dam 6021 and radiating tube 601 can be increased, and then the radiating efficiency of radiating subassembly 61 can be improved further, ensure the operation stability of electric control element 60.Preferably, the shape of spatial accommodation is identical with the shape of radiating tube 601.Thus, further increase the contact area between radiating tube 601 and fixed dam 6021, heat-radiating substrate 6020, radiating tube 601 directly can carry out heat exchange with fixed dam 6021, heat-radiating substrate 6020.
Such as, in example as shown in Figure 3 and Figure 4, the end face towards fixed dam 6021 of heat-radiating substrate 6020 is provided with the first groove, and the end face towards heat-radiating substrate 6020 of fixed dam 6021 is provided with the second groove, and the first groove and the second groove fit limit spatial accommodation.Thus, be convenient to radiating tube 601 to be arranged on radiation shell 602, also increase the contact area between radiating tube 601 and heat-radiating substrate 6020, fixed dam 6021 simultaneously.For convenience of processing, in an example of the present invention, the cross section of the first groove and the second groove is formed as semicircle respectively.
In example as indicated at 4, for improving the radiating efficiency of radiating subassembly 61, the two ends of radiating tube 601 stretch out to be connected on the first refrigerant flow 9 from the opposing sidewalls of radiation shell 602 respectively.Certainly, the position at the two ends of radiating tube 601 is not limited to this, for improving the radiating efficiency of radiating subassembly 61 further, such as, in example as shown in Figure 3, the two ends of radiating tube 601 stretch out to be connected on the first refrigerant flow 9 from the same side of radiation shell 602 respectively.Such as, radiating tube 601 can be formed as U-shaped structure, and then extend the length of radiating tube 601 in radiation shell 602, thus increase the contact area between radiating tube 601 and heat-radiating substrate 6020, fixed dam 6021, and then further increase the radiating efficiency of radiating subassembly 61.
In some embodiments of the invention, air-conditioner 100 also comprises the temperature-detecting device (scheming not shown) for detecting electric control element 60 temperature, electric control element 60 is electrically connected with temperature-detecting device and triple valve 5 respectively, and electric control element 60 controls five-port p and the 6th port q or the 7th port r conducting according to the testing result of temperature-detecting device.
Wherein temperature-detecting device can be located on the position such as heat-radiating substrate 6020 of the contiguous electric control element 60 of radiating subassembly 61, and temperature-detecting device can also be directly arranged on electric control element 60.Thus the automaticity of air-conditioner 100 can be improved, and can control whether to adopt refrigerant to dispel the heat to electric control element 60 according to the temperature of electric control element 60, further ensure and can effectively dispel the heat to electric control element 60, the generation of condensed water can also be avoided simultaneously further.
More specifically, the temperature that temperature-detecting device can be collected and the first anticipation temperature value and the second anticipation temperature value compare, when the temperature detected is higher than the first anticipation temperature value, control triple valve 5 and make five-port p and the 6th port q conducting, refrigerant flows through the first refrigerant flow 9, and then the electric control element 60 on the first refrigerant flow 9 is lowered the temperature, when temperature being detected lower than the second anticipation temperature value, control triple valve 5 and make five-port p and the 7th port r conducting, refrigerant flows through from the second refrigerant flow 10, and the first refrigerant flow 9 can not be flowed through, the temperature of the electric control element 60 on the first refrigerant flow 9 can not be made thus too low, wherein the first anticipation temperature value is not less than the second anticipation temperature value.Be understandable that, the concrete numerical value of the first anticipation temperature value and the second anticipation temperature value can limit according to actual conditions.
The control method of the air-conditioner according to the embodiment of the present invention is described below in detail.
The control method of the embodiment of the present invention for be air-conditioner 100 in above-described embodiment, control method can comprise the steps:
S1: air-conditioner 100 is started shooting and run, and detects the running status of air-conditioner 100;
S2: when air-conditioner 100 being detected for heating operation, five-port p and the 6th port q conducting, when air-conditioner 100 being detected for refrigerating operaton, five-port p and the 6th port q conducting.
S3: when air-conditioner 100 heating operation being detected in step S2, after air-conditioner runs a period of time, detects air-conditioner 100 and whether starts defrost;
S4: when detecting that air-conditioner 100 starts defrost, triple valve switches to five-port p and the 7th port r conducting, when air-conditioner 100 non-defrost, keeps five-port p and the 6th port q conducting;
Whether S5: whether defrost completes to detect air-conditioner 100, when air-conditioner 100 does not complete defrost, keeps five-port p and the 7th port r conducting, when air-conditioner 100 completes defrost, detect air-conditioner 100 and shut down;
S6: when detecting that air-conditioner 100 does not shut down, return step S1, when air-conditioner 100 shuts down, terminates.
The control method according to the air-conditioner 100 of the embodiment of the present invention is described in detail below in conjunction with Fig. 5.
The first step: air-conditioner 100 is started shooting and run, and detects the running status of air-conditioner 100;
Second step: when detecting that air-conditioner 100 is heating operations, five-port p and the 6th port q conducting, when air-conditioner 100 being detected for refrigerating operaton, five-port and the 6th port conducting;
3rd step: after air-conditioner 100 heating operation a period of time, detects air-conditioner 100 and whether carries out defrost;
4th step: when detecting that air-conditioner 100 starts defrost, five-port p and the 7th port r conducting, otherwise five-port p and the 6th port q conducting;
5th step: whether defrost completes to detect air-conditioner 100, if air-conditioner 100 defrost completes enter the 6th step, otherwise five-port p and the 7th port r conducting;
6th step: detect air-conditioner 100 and whether shut down, if terminate, otherwise is back to the first step.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (9)
1. an air-conditioner, is characterized in that, comprising:
Compressor, described compressor has exhaust outlet and gas returning port;
Commutation assembly, described commutation assembly comprises the first port to the 4th port, one of them conducting in described first port and the second port and the 3rd port, another conducting in described 4th port and described second port and described 3rd port, described first port is connected with described exhaust outlet, and described 4th port is connected with described gas returning port;
Outdoor heat exchanger and indoor heat exchanger, the first end of described outdoor heat exchanger is connected with described second port, and the first end of described indoor heat exchanger is connected with described 3rd port;
First one-way throttle valve, described first one-way throttle valve comprises the first valve port and the second valve port, described first valve port is connected with the second end of described outdoor heat exchanger, on from described first valve port to the circulating direction of described second valve port, the complete conducting of described first one-way throttle valve, on from described second valve port to the circulating direction of described first valve port, described first one-way throttle valve is throttle part;
Second one-way throttle valve, described second one-way throttle valve comprises the 3rd valve port and the 4th valve port, described 3rd valve port is connected with the second end of described indoor heat exchanger, on from described 3rd valve port to the circulating direction of described 4th valve port, the complete conducting of described second one-way throttle valve, on from described 4th valve port to the circulating direction of described 3rd valve port, described second one-way throttle valve is throttle part;
The first refrigerant flow be connected in parallel and the second refrigerant flow, described first refrigerant flow is connected with described second valve port respectively with described second refrigerant flow;
Electric radiator assembly, described electric radiator assembly comprises electric control element and the radiating subassembly for dispelling the heat to described electric control element, and described radiating subassembly is connected on described first refrigerant flow;
Triple valve, described triple valve comprises five-port to the 7th port, one of them conducting in described five-port and described 6th port and described 7th port, described five-port is connected with the 4th valve port of described second one-way throttle valve, described 6th port is connected with described first refrigerant flow, and described 7th port is connected with described second refrigerant flow.
2. air-conditioner according to claim 1, is characterized in that, described commutation assembly is cross valve.
3. air-conditioner according to claim 1, is characterized in that, described radiating subassembly comprises:
Radiating tube, described radiating tube is connected on described first refrigerant flow;
Radiation shell, described radiating tube is located on described radiation shell, and described radiation shell contacts with described electric control element and is used for dispelling the heat to described electric control element.
4. air-conditioner according to claim 3, is characterized in that, described radiation shell comprises:
Heat-radiating substrate, described heat-radiating substrate contacts with described electric control element;
Fixed dam, described fixed dam is located on described heat-radiating substrate, limits the spatial accommodation for holding described radiating tube between described fixed dam and described heat-radiating substrate.
5. air-conditioner according to claim 3, is characterized in that, the two ends of described radiating tube stretch out to be connected on described first refrigerant flow from the opposing sidewalls of described radiation shell respectively.
6. air-conditioner according to claim 3, is characterized in that, the two ends of described radiating tube stretch out to be connected on described first refrigerant flow from the same side of described radiation shell respectively.
7. air-conditioner according to claim 4, is characterized in that, described fixed dam is provided with fixed leg, and described heat-radiating substrate is provided with fixing hole, and described fixed leg is connected with described fixing hole riveted.
8. air-conditioner according to claim 1, it is characterized in that, also comprise the temperature-detecting device for detecting described electric control element temperature, described electric control element is electrically connected with described temperature-detecting device and described triple valve respectively, and described electric control element controls described five-port and described 6th port or the 7th port conducting according to the testing result of described temperature-detecting device.
9. a control method for air-conditioner, is characterized in that, the air-conditioner of described air-conditioner according to any one of claim 1-8, described control method comprises the steps:
S1: air-conditioner start runs, and detects the running status of described air-conditioner;
S2: when detecting that air-conditioner is heating operation, described five-port and described 6th port conducting, when detecting that air-conditioner is refrigerating operaton, described five-port and described 6th port conducting;
S3: when detecting in step S2 that described air conditioner heat-production runs, after described air-conditioner runs a period of time, detects air-conditioner and whether starts defrost;
S4: when detecting that air-conditioner starts defrost, described triple valve switches to described five-port and the 7th port conducting, when the non-defrost of air-conditioner, keeps described five-port and described 6th port conducting;
Whether S5: whether defrost completes to detect air-conditioner, when air-conditioner does not complete defrost, keeps described five-port and described 7th port conducting, when air-conditioner completes defrost, detect air-conditioner and shut down;
S6: when detecting that air-conditioner does not shut down, turn back to step S1, during air-conditioner shutdown, terminates.
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