CN107726475A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN107726475A CN107726475A CN201710946019.9A CN201710946019A CN107726475A CN 107726475 A CN107726475 A CN 107726475A CN 201710946019 A CN201710946019 A CN 201710946019A CN 107726475 A CN107726475 A CN 107726475A
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- Prior art keywords
- throttle
- temperature
- tfi
- valve
- air conditioner
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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
- 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
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air conditioner, air conditioner includes：Compressor, compressor have exhaust outlet, gas returning port and gas supplementing opening；Outdoor heat exchanger and indoor heat exchanger；Outer machine choke valve and interior machine choke valve；For the cooling device cooled down to electric control gear, cooling device includes the first refrigerant flow and the second refrigerant flow, and one end of the first refrigerant flow is connected with gas supplementing opening, and one end of the second refrigerant flow is connected with gas returning port；First throttle valve, the both ends of first throttle valve are connected with the second end of outer machine choke valve and the other end of the first refrigerant flow respectively；Second throttle, the both ends of second throttle are connected with the second end of outer machine choke valve and the other end of the second refrigerant flow respectively.According to the air conditioner of the present invention, the air conditioner both ensure that the cooling requirement of electric control gear, and dew condensation phenomenon occurs in the surface that turn avoid cooling device, and simplifies the structure of electric control gear, reduces cost.
Description
Technical field
The present invention relates to refrigeration technology field, and in particular to a kind of air conditioner.
Background technology
For powerful electric control gear, the critical component such as inversion module and rectification module of electric control gear at work can
Amount of heat is produced, it is necessary to effectively cool down to ensure the stability of electric control gear work, in correlation technique, using refrigeration system
In the refrigerant type of cooling electric control gear is cooled down, the refrigerant of low-temp low-pressure passes through the cooling device that is connected with electric control gear
After be returned directly to compressor, good cooling results, but the risk of condensation be present, it is necessary to volume when electric control gear heating is less
Outer dehydrating unit, make the complicated of electric control gear, and then increase the cost of electric control gear.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.Therefore, the present invention proposes a kind of sky
Device is adjusted, the air conditioner both ensure that the cooling requirement of electric control gear, and dew condensation phenomenon occurs in the surface that turn avoid cooling device,
And the structure of electric control gear is simplified, reduces cost.
Air conditioner according to embodiments of the present invention, including：Compressor, the compressor have exhaust outlet, gas returning port and benefit
Gas port；In outdoor heat exchanger and indoor heat exchanger, the first end of the outdoor heat exchanger and the exhaust outlet and the gas returning port
One of them be connected, the first end of the indoor heat exchanger is connected with another in the exhaust outlet and the gas returning port；
Outer machine choke valve and interior machine choke valve, the first end of the outer machine choke valve are connected with the second end of the outdoor heat exchanger, institute
The both ends for stating interior machine choke valve are connected with the second end of the indoor heat exchanger and the second end of the outer machine choke valve respectively；With
In the cooling device cooled down to electric control gear, the cooling device includes the first refrigerant flow and the second refrigerant flow, institute
The one end for stating the first refrigerant flow is connected with the gas supplementing opening, and one end of second refrigerant flow is connected with the gas returning port；
First throttle valve, the both ends of the first throttle valve the second end with the outer machine choke valve and first refrigerant flow respectively
The other end be connected；Second throttle, the both ends of the second throttle the second end with the outer machine choke valve and institute respectively
The other end for stating the second refrigerant flow is connected.
Air conditioner according to embodiments of the present invention, by making cooling device include the first refrigerant flow and the second refrigerant stream
Road, and controllable first throttle valve and second throttle to regulate and control the refrigerant in the first refrigerant flow and the second refrigerant flow respectively
Evaporating temperature, and then by the temperature control of cooling device in suitable scope, both ensure that the cooling requirement of electric control gear,
There is dew condensation phenomenon in the surface that turn avoid cooling device, and simplifies the structure of electric control gear, reduces cost.
In some embodiments of the invention, the cooling device includes inner and outer tubes, and said inner tube is positioned at described outer
In pipe, said inner tube limits first refrigerant flow, between the internal perisporium of the outer tube and the periphery wall of said inner tube
Space limits second refrigerant flow.
In some embodiments of the invention, the cooling device is provided with two spaced runner pipes, two institutes
State runner pipe and limit first refrigerant flow and second refrigerant flow.
In some embodiments of the invention, air conditioner also includes four-way valve, and the four-way valve includes exhaust port, return-air
Interface, indoor interface and outdoor interface, one of them in the exhaust port and the indoor interface and the outdoor interface
Switching connection, the return-air interface connect with another switching in the indoor interface and the outdoor interface, the exhaust
Interface is connected with the exhaust outlet, and the return-air interface is connected with the gas returning port, the indoor interface and the indoor heat exchange
The first end of device is connected, and the outdoor interface is connected with the first end of the outdoor heat exchanger, second refrigerant flow and institute
Return-air interface is stated to be connected.
In some embodiments of the invention, air conditioner also includes being used for the first temperature detection for detecting the cooling device
Device, first temperature-detecting device are connected with the electric control gear, the electric control gear and the first throttle valve and institute
Second throttle is stated to be connected to control the first throttle valve and institute according to the testing result Tfi of first temperature-detecting device
State the aperture of second throttle.
Specifically, in the given time, the testing result of the first temperature-detecting device has maximum MAX (Tfi) and most
Small value MIN (Tfi), wherein as MAX (Tfi) ＞ the first predetermined temperature t1, the first throttle valve is controlled to open or control
The aperture increase of the first throttle valve；As MAX (Tfi) ＞ the second predetermined temperature t2, the first throttle valve, which is in, opens
State, control the second throttle to open or control the aperture of the second throttle to increase；As MAX (Tfi) ＞ the 3rd
During predetermined temperature t3, control the aperture of the maximum and described second throttle of the aperture of the first throttle valve maximum, wherein first
The predetermined temperature t3 of predetermined temperature t1 ＜ the second predetermined temperature t2 ＜ the 3rd.
Alternatively, air conditioner also includes being used for the second temperature detection means for detecting the temperature in the electric control gear, institute
State second temperature detection means with the electric control gear to be connected, the electric control gear and the first throttle valve and second section
Valve is flowed to be connected with the testing result Tfi according to first temperature-detecting device and the detection knot of the second temperature detection means
Fruit Tqi controls the aperture of the first throttle valve and the second throttle.
Specifically, it is described in the given time, the testing result of the first temperature-detecting device has maximum MAX (Tfi)
With minimum value MIN (Tfi), wherein as MAX (Tfi) ＜ the first predetermined temperature t1 and MIN (Tfi)<MAX (Tqi)+first predetermined value
When, control the second throttle to close or reduce aperture；As MAX (Tfi) ＜ the first predetermined temperature t1 and MIN (Tfi)<
During MAX (Tqi)+second predetermined value, control the first throttle valve closing or reduce aperture, described in the first predetermined value ＞
Second predetermined value.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the structural representation of air conditioner according to embodiments of the present invention；
Fig. 2 is the structural representation of cooling device according to some embodiments of the invention；
Fig. 3 is the schematic cross-sectional view of the cooling device in Fig. 2；
Fig. 4 is the cross section structure diagram according to the cooling device of other embodiments of the invention.
Reference：
Air conditioner 100；Compressor 1；Outdoor heat exchanger 2；Indoor heat exchanger 3；Outer machine choke valve 4；Interior machine choke valve 5；The
One choke valve 6；Second throttle 7；Cooling device 8；First refrigerant flow 8a；Second refrigerant flow 8b.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that the orientation or position of the instruction such as term " on ", " under ", " interior ", " outer "
It is based on orientation shown in the drawings or position relationship to put relation, is for only for ease of the description present invention and simplifies description, rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as limitation of the present invention.In addition, define " first ", one can be expressed or be implicitly included to the feature of " second "
Or more this feature.In the description of the invention, unless otherwise indicated, " multiple " are meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Air conditioner 100 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 4, air conditioner 100 can be used for adjusting
Indoor environment temperature.
As shown in figure 1, air conditioner 100 according to embodiments of the present invention, can include compressor 1, outdoor heat exchanger 2, room
Interior heat exchanger 3, outer machine choke valve 4, interior machine choke valve 5, cooling device 8, first throttle for being cooled down to electric control gear
Valve 6 and second throttle 7.
Specifically, compressor 11 has exhaust outlet (not shown), gas returning port (not shown) and gas supplementing opening (not shown
Go out), refrigerant can enter in compressor 11 from gas returning port and gas supplementing opening, the refrigerant of the HTHP after the compression of compressor 11, can
Discharged from exhaust outlet.
The first end of outdoor heat exchanger 2 is connected with one of them in exhaust outlet and gas returning port, and the first of indoor heat exchanger 3
End is connected with another in exhaust outlet and gas returning port.That is, can be the first end and exhaust outlet phase of outdoor heat exchanger 2
Even, the first end of indoor heat exchanger 3 is connected with gas returning port, or can also be the first end and gas returning port phase of outdoor heat exchanger 2
Even, the first end of indoor heat exchanger 3 is connected with exhaust outlet.
The first end of outer machine choke valve 4 is connected with the second end of outdoor heat exchanger 2, the both ends of interior machine choke valve 5 respectively with
Second end of indoor heat exchanger 3 is connected with the second end of outer machine choke valve 4.For example, as shown in figure 1, outer machine choke valve 4 has section
Flow antihypertensive effect and refrigerant can be distributed to reasonably to loop below, there is interior machine choke valve 5 reducing pressure by regulating flow to act on and can incite somebody to action
Refrigerant reasonably distributes to indoor heat exchanger 3 with the temperature in controlling chamber.
Cooling device 8 is used to cool down electric control gear, and cooling device 8 includes the first refrigerant flow 8a and the second refrigerant
Stream 8b, the first refrigerant flow 8a one end are connected with gas supplementing opening, and the second refrigerant flow 8b one end is connected with gas returning port.Specifically
Ground, cooling device 8 are connected with electric control gear, and electric control gear produces amount of heat and is conducted to cooling device 8 at work, regulation and control
The temperature of cooling device 8 can regulate and control the temperature of electric control gear.
Specifically, economizer is also provided with air conditioner 100, economizer is connected with the second end of outdoor heat exchanger 2,
The refrigerant outflow end of economizer includes main road outlet and bypass outlet, a refrigerant part for economizer is flowed into by throttling, with heat
The mode of amount expansion goes to reduce the temperature of another part, makes its supercooling, the supercooling refrigerant that this part is settled out passes through economy
The outlet of device main road gets in heat exchanger 3 and exchanged heat, and the refrigerant that another part is not cooled is gone out by the bypass of economizer
The gas supplementing opening of mouth inflow compressor 1, it thus can improve the heat exchange efficiency of air conditioner 100.
The bypass outlet of first refrigerant flow 8a one end access economizer, thus the refrigerant in the first refrigerant flow 8a can
Entered by the gas supplementing opening of compressor 1 in compressor 1, because the bypass exit of economizer is middle pressure, its evaporating temperature is usual
Higher, cooling capacity is poor, but is less prone to condensation problem.
Due to second throttle 7 with reducing pressure by regulating flow act on, the gas returning port of compressor 1 is low pressure, and its evaporating temperature is relatively low,
Cooling capacity is preferable, but condensation problem easily occurs.Need to illustrate, the present invention described in high pressure, low pressure and in
The pressure that pressure is intended merely to describe diverse location is different, and does not indicate that specific pressure value.
The both ends of first throttle valve 6 respectively with the second end of outer machine choke valve 4 and the first refrigerant flow 8a other end phase
Even.The evaporating temperature of the refrigerant in the first refrigerant flow 8a can be controlled and then regulation and control by adjusting the aperture of first throttle valve 6
The temperature of cooling device 8, so as to being controlled for the temperature to electric control gear.
The both ends of second throttle 7 respectively with the second end of outer machine choke valve 4 and the second refrigerant flow 8b other end phase
Even.The evaporating temperature of the refrigerant in the second refrigerant flow 8b can be controlled and then regulation and control by adjusting the aperture of second throttle 7
The temperature of cooling device 8, so as to being controlled for the temperature to electric control gear.
Wherein, first throttle valve 6 and second throttle 7 can be that electric expansion valve etc. can adjust flow and with throttling
The valve body of antihypertensive effect.
It is understood that when air conditioner 100 is single-cooling air-conditioner, first end and the exhaust outlet phase of outdoor heat exchanger 2
Even, the first end of indoor heat exchanger 3 is connected with gas returning port.When air conditioner 100 is heating and air conditioner, air conditioner 100 also wraps
Include four-way valve (not shown), four-way valve includes exhaust port, return-air interface, indoor interface and outdoor interface, exhaust port and
Indoor interface connects with one of switching in outdoor interface, another in return-air interface and indoor interface and outdoor interface
Switching connection, exhaust port is connected with exhaust outlet, and return-air interface is connected with gas returning port, and the of indoor interface and indoor heat exchanger 3
One end is connected, and outdoor interface is connected with the first end of outdoor heat exchanger 2, and the second refrigerant flow 8b is connected with return-air interface.Thus,
The flow direction of refrigerant can be changed by manipulating four-way valve, and then make air conditioner 100 can be in refrigerating function, heat-production functions and defrosting work(
Switch between energy.
Air conditioner 100 according to embodiments of the present invention, it is cold by making cooling device 8 include the first refrigerant flow 8a and second
Matchmaker stream 8b, and controllable first throttle valve 6 and second throttle 7 to regulate and control the first refrigerant flow 8a and the second refrigerant stream respectively
The evaporating temperature of refrigerant in the 8b of road, and then by the temperature control of cooling device 8 in suitable scope, both ensure that automatically controlled dress
The cooling requirement put, there is dew condensation phenomenon in the surface that turn avoid cooling device 8, and simplifies the structure of electric control gear, drop
Low cost.
In some embodiments of the invention, cooling device 8 includes inner and outer tubes, and inner tube is located in outer tube, inner tube limit
The first refrigerant flow 8a is made, the space between the internal perisporium of outer tube and the periphery wall of inner tube limits the second refrigerant flow 8b.
For example, as shown in Figures 2 and 3, inner and outer tubes are all formed as U-tube, inner tube is located in outer tube, thus can reduce cooling device
8 volume, and then be advantageous to reduce the volume of air conditioner 100.
In some embodiments of the invention, cooling device 8 is provided with two spaced runner pipes, two runner pipes
Limit the first refrigerant flow 8a and the second refrigerant flow 8b.For example, as shown in figure 4, two runner pipes are all formed as U-tube,
Thus be advantageous to film-cooled heat of the increase to cooling device 8, and then strengthen cooling effect.
In some embodiments of the invention, air conditioner 100 also includes being used for the first temperature detection for detecting cooling device 8
Device (not shown), the first temperature-detecting device are connected with electric control gear, and electric control gear throttles with first throttle valve 6 and second
Valve 7 is connected to control the aperture of first throttle valve 6 and second throttle 7 according to the testing result Tfi of the first temperature-detecting device.
Specifically, the first temperature-detecting device can be multiple temperature sensors, such as the first temperature-detecting device can be with
For two temperature sensors, one is located at neighbouring cooling device 8, another to be located at neighbouring electric control gear, it is to be understood that
It is lower than being located at the temperature that the temperature sensor at neighbouring electric control gear is surveyed to be located at the temperature sensor at neighbouring cooling device 8,
Two temperature sensors can pass to respective testing result electric control gear, and electric control gear is according to the detection knot of temperature sensor
Fruit controls the aperture of first throttle valve 6 and second throttle 7.
Certainly the invention is not restricted to this, temperature sensor can also be three, four or five, the quantity of temperature sensor
Determined according to being actually needed.
In some embodiments of the invention, in the given time, the testing result of the first temperature-detecting device has most
Big value MAX (Tfi) and minimum value MIN (Tfi), wherein as MAX (Tfi) ＞ the first predetermined temperature t1, control first throttle valve 6
Open or the aperture of control first throttle valve 6 increases；As MAX (Tfi) ＞ the second predetermined temperature t2, at first throttle valve 6
In opening, control second throttle 7 opens or controlled the aperture of second throttle 7 to increase；As MAX (Tfi) ＞ the 3rd
During predetermined temperature t3, control the aperture of first throttle valve 6 maximum maximum with the aperture of second throttle 7, wherein the first pre- constant temperature
Spend the predetermined temperature t3 of t1 ＜ the second predetermined temperature t2 ＜ the 3rd.
Specifically, the first predetermined temperature t1, the second predetermined temperature t2 and the 3rd predetermined temperature t3 can be true according to being actually needed
It is fixed, for example, the appropriate working temperature of electric control gear is 35 DEG C -42 DEG C, can by the first predetermined temperature t1, the second predetermined temperature t2 and
3rd predetermined temperature t3 is respectively set as 42 DEG C, 45 DEG C and 48 DEG C, and as 42 DEG C of MAX (Tfi) ＞, control first throttle valve 6 is opened
Open or control the aperture of first throttle valve 6 to increase；As 45 DEG C of MAX (Tfi) ＞, control second throttle 7 is opened or controlled
The aperture increase of second throttle 7 processed；As 48 DEG C of MAX (Tfi) ＞, control the aperture of first throttle valve 6 is maximum to be throttled with second
The aperture of valve 7 is maximum.Thus, it is possible to ensure that electric control gear will not overheat.
Alternatively, the second temperature detection means that air conditioner 100 also includes being used to detect the temperature in electric control gear (is schemed not
Show), second temperature detection means is connected with electric control gear, electric control gear be connected with first throttle valve 6 and second throttle 7 with
According to the testing result Tfi of the first temperature-detecting device and testing result Tqi of second temperature detection means control first throttles
The aperture of valve 6 and second throttle 7.
In other words, the temperature for the air that second temperature detection means is used in cavity where detecting electric control gear, the second temperature
Degree detection means can pass to testing result electric control gear, and electric control gear can be according to the testing result of the first temperature-detecting device
The aperture of the Tfi and testing result Tqi of second temperature detection means control first throttle valves 6 and second throttle 7.Wherein,
Two temperature-detecting devices can be one or more temperature sensors.
Specifically, in the given time, the testing result of the first temperature-detecting device has maximum MAX (Tfi) and most
Small value MIN (Tfi), wherein as MAX (Tfi) ＜ the first predetermined temperature t1 and MIN (Tfi)<During MAX (Tqi)+first predetermined value,
Aperture is closed or reduced to control second throttle 7；As MAX (Tfi) ＜ the first predetermined temperature t1 and MIN (Tfi)<MAX(Tqi)
During+second predetermined value, aperture, first predetermined value ＞ second predetermined values are closed or reduced to control first throttle valve 6.
Wherein, first predetermined value and second predetermined value can select according to actual conditions.For example, first predetermined value and second pre-
Between definite value can take 3 DEG C -5 DEG C, thus, pass through control of the electric control gear to first throttle valve 6 and the aperture of second throttle 7
Temperature of the temperature not less than the air in cavity where electric control gear of cooling device 8 is can ensure that, and then avoids the occurrence of condensation and shows
As.
Below with reference to the accompanying drawings 1- Fig. 3 is carried out detailed to the concrete structure and control mode of the air conditioner 100 of the embodiment of the present invention
Describe in detail bright.Of course, it should be understood that described below be intended to be used to explain the present invention, and cannot function as limiting a kind of of the present invention
System.
As shown in Figure 1-Figure 3, air conditioner 100 according to embodiments of the present invention, including compressor 1, outdoor heat exchanger 2, room
Interior heat exchanger 3, outer machine choke valve 4, interior machine choke valve 5, the cooling device 8 for being cooled down to electric control gear, economizer,
One choke valve 6, second throttle 7.
Specifically, compressor 11 has exhaust outlet, gas returning port and gas supplementing opening, and refrigerant can enter pressure from gas returning port and gas supplementing opening
In contracting machine 11, the refrigerant of the HTHP after the compression of compressor 11, it can be discharged from exhaust outlet.
The first end of outdoor heat exchanger 2 is connected with exhaust outlet, and the first end of indoor heat exchanger 3 is connected with gas returning port.
The first end of outer machine choke valve 4 is connected with the second end of outdoor heat exchanger 2, the both ends of interior machine choke valve 5 respectively with
Second end of indoor heat exchanger 3 is connected with the second end of outer machine choke valve 4.
Cooling device 8 for being cooled down to electric control gear includes the first refrigerant flow 8a and the second refrigerant flow 8b,
First refrigerant flow 8a one end is connected with gas supplementing opening, and the second refrigerant flow 8b one end is connected with gas returning port.
Economizer is connected with the second end of outdoor heat exchanger 2, and the refrigerant outflow end of economizer includes main road outlet and bypass
Outlet, the bypass of the first refrigerant flow 8a one end access economizer export and enter compressor 1 by the gas supplementing opening of compressor 1
Interior, due to the middle pressure in the bypass exit correspondence system of economizer, its evaporating temperature is generally higher, and cooling capacity is poor, but
It is less prone to condensation problem.
The gas returning port of compressor 1 corresponds to the low pressure in coolant system, and its evaporating temperature is relatively low, and cooling capacity is preferable, but holds
Condensation problem easily occurs.
As shown in figure 1, the both ends of first throttle valve 6 the second end with outer machine choke valve 4 and the first refrigerant flow 8a respectively
The other end be connected, the both ends of second throttle 7 are another with the second end of outer machine choke valve 4 and the second refrigerant flow 8b respectively
End is connected.
Air conditioner 100 also includes being used for detecting the first temperature-detecting device of cooling device 8, the first temperature-detecting device with
Electric control gear is connected, and electric control gear is connected with the inspection according to the first temperature-detecting device with first throttle valve 6 and second throttle 7
Survey the aperture of result Tfi control first throttle valves 6 and second throttle 7.
First temperature-detecting device particular location is two temperature sensors, and one is located at neighbouring cooling device 8, another
It is individual to be located at neighbouring electric control gear.
In the given time, the testing result of the first temperature-detecting device has maximum MAX (Tfi) and minimum value MIN
(Tfi), wherein as MAX (Tfi) ＞ the first predetermined temperature t1, first throttle valve 6 is opened or controlled to control first throttle valve 6
Aperture increase；As MAX (Tfi) ＞ the second predetermined temperature t2, first throttle valve 6 is in opening, the throttling of control second
Valve 7 opens or controlled the aperture of second throttle 7 to increase；As MAX (Tfi) the 3rd predetermined temperature t3 of ＞, first segment is controlled
It is maximum and the aperture of second throttle 7 is maximum to flow the aperture of valve 6, wherein first predetermined temperature t1 ＜ the second predetermined temperature t2 ＜ the
Three predetermined temperature t3.Thus it can ensure that electric control gear will not overheat.
Air conditioner 100 also includes being used for the second temperature detection means for detecting the temperature in electric control gear, second temperature inspection
Survey device with electric control gear to be connected, electric control gear is connected with according to the first temperature detection with first throttle valve 6 and second throttle 7
The testing result Tfi of device and the testing result Tqi control first throttle valves 6 and second throttle 7 of second temperature detection means
Aperture.
In the given time, the testing result of the first temperature-detecting device has maximum MAX (Tfi) and minimum value MIN
(Tfi), wherein as MAX (Tfi) ＜ the first predetermined temperature t1 and MIN (Tfi)<During MAX (Tqi)+first predetermined value, control second
Aperture is closed or reduced to choke valve 7；As MAX (Tfi) ＜ the first predetermined temperature t1 and MIN (Tfi)<MAX (Tqi)+the second is pre-
During definite value, aperture, first predetermined value ＞ second predetermined values are closed or reduced to control first throttle valve 6.Thus, automatically controlled dress is passed through
Put the control to the aperture of first throttle valve 6 and second throttle 7 and can ensure that the temperature of cooling device 8 is not less than electric control gear institute
The temperature of air in cavity, and then avoid the occurrence of dew condensation phenomenon.
Other compositions of air conditioner 100 according to embodiments of the present invention etc. and operation are for those of ordinary skill in the art
For be all known, be not detailed herein.
In the description of this specification, the description of reference term " some embodiments " etc. means to combine the embodiment or example
Specific features, structure, material or the feature of description are contained at least one embodiment or example of the present invention.In this explanation
In book, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover, the specific spy of description
Sign, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (8)
- A kind of 1. air conditioner, it is characterised in that including：Compressor, the compressor have exhaust outlet, gas returning port and gas supplementing opening；In outdoor heat exchanger and indoor heat exchanger, the first end of the outdoor heat exchanger and the exhaust outlet and the gas returning port One of them is connected, and the first end of the indoor heat exchanger is connected with another in the exhaust outlet and the gas returning port；Outer machine choke valve and interior machine choke valve, the first end of the outer machine choke valve and the second end phase of the outdoor heat exchanger Even, the both ends of the interior machine choke valve respectively with the second end of the indoor heat exchanger and the second end phase of the outer machine choke valve Even；For the cooling device cooled down to electric control gear, the cooling device includes the first refrigerant flow and the second refrigerant stream Road, one end of first refrigerant flow are connected with the gas supplementing opening, one end and the gas returning port of second refrigerant flow It is connected；First throttle valve, the both ends of the first throttle valve the second end with the outer machine choke valve and first refrigerant respectively The other end of stream is connected；Second throttle, the both ends of the second throttle the second end with the outer machine choke valve and second refrigerant respectively The other end of stream is connected.
- 2. air conditioner according to claim 1, it is characterised in that the cooling device includes inner and outer tubes, described interior For pipe in the outer tube, said inner tube limits first refrigerant flow, the internal perisporium of the outer tube and said inner tube Space between periphery wall limits second refrigerant flow.
- 3. air conditioner according to claim 1, it is characterised in that the cooling device is provided with two spaced streams Siphunculus, two runner pipes limit first refrigerant flow and second refrigerant flow.
- 4. air conditioner according to claim 1, it is characterised in that also connect including four-way valve, the four-way valve including exhaust Mouth, return-air interface, indoor interface and outdoor interface, its in the exhaust port and the indoor interface and the outdoor interface In a switching connection, the return-air interface connects with another switching in the indoor interface and the outdoor interface, institute State exhaust port with the exhaust outlet to be connected, the return-air interface is connected with the gas returning port, the indoor interface and the room The first end of interior heat exchanger is connected, and the outdoor interface is connected with the first end of the outdoor heat exchanger, the second refrigerant stream Road is connected with the return-air interface.
- 5. air conditioner according to claim 1, it is characterised in that also include being used for the first temperature for detecting the cooling device Detection means is spent, first temperature-detecting device is connected with the electric control gear, the electric control gear and the first throttle Valve is connected with the second throttle to control the first throttle according to the testing result Tfi of first temperature-detecting device The aperture of valve and the second throttle.
- 6. air conditioner according to claim 5, it is characterised in that in the given time, the inspection of the first temperature-detecting device Surveying result has maximum MAX (Tfi) and minimum value MIN (Tfi), whereinAs MAX (Tfi) ＞ the first predetermined temperature t1, the first throttle valve is controlled to open or control the first throttle valve Aperture increase；As MAX (Tfi) ＞ the second predetermined temperature t2, the first throttle valve is in opening, control second throttling Valve is opened or controls the aperture of the second throttle to increase；As MAX (Tfi) the 3rd predetermined temperature t3 of ＞, the maximum and described second throttle of the aperture of the first throttle valve is controlled Aperture it is maximum, wherein the predetermined temperature t3 of first predetermined temperature t1 ＜ the second predetermined temperature t2 ＜ the 3rd.
- 7. the air conditioner according to claim 5 or 6, it is characterised in that also include being used to detect in the electric control gear The second temperature detection means of temperature, the second temperature detection means are connected with the electric control gear, the electric control gear with The first throttle valve is connected with the second throttle with the testing result Tfi according to first temperature-detecting device and institute The testing result Tqi for stating second temperature detection means controls the aperture of the first throttle valve and the second throttle.
- 8. air conditioner according to claim 7, it is characterised in that it is described in the given time, the first temperature-detecting device Testing result there is maximum MAX (Tfi) and minimum value MIN (Tfi), whereinAs MAX (Tfi) ＜ the first predetermined temperature t1 and MIN (Tfi)<During MAX (Tqi)+first predetermined value, control second section Flow valve and close or reduce aperture；As MAX (Tfi) ＜ the first predetermined temperature t1 and MIN (Tfi)<During MAX (Tqi)+second predetermined value, the first segment is controlled Flow valve and close or reduce aperture, second predetermined value described in the first predetermined value ＞.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710946019.9A CN107726475B (en) | 2017-10-12 | 2017-10-12 | Air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710946019.9A CN107726475B (en) | 2017-10-12 | 2017-10-12 | Air conditioner |
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| CN107726475A true CN107726475A (en) | 2018-02-23 |
| CN107726475B CN107726475B (en) | 2020-06-30 |
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| CN109195414A (en) * | 2018-10-17 | 2019-01-11 | 珠海格力电器股份有限公司 | Air conditioner, electrical box and electrical box radiator |
| CN109341131A (en) * | 2018-11-13 | 2019-02-15 | 珠海格力电器股份有限公司 | Air conditioner and temperature control method of electric controller of air conditioner |
| CN110410878A (en) * | 2019-08-26 | 2019-11-05 | 珠海格力电器股份有限公司 | Air conditioning system and cooling method |
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|---|---|
| CN107726475B (en) | 2020-06-30 |
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