CN204313517U - Heating and air conditioner - Google Patents
Heating and air conditioner Download PDFInfo
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- CN204313517U CN204313517U CN201420717410.3U CN201420717410U CN204313517U CN 204313517 U CN204313517 U CN 204313517U CN 201420717410 U CN201420717410 U CN 201420717410U CN 204313517 U CN204313517 U CN 204313517U
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Abstract
The utility model discloses a kind of heating and air conditioner, comprising: compressor, described compressor has exhaust outlet and gas returning port; First commutation assembly, described first commutation assembly comprises the first port to the 4th port; Second commutation assembly, described second commutation assembly comprises five-port to the 8th port; Indoor heat exchanger and outdoor heat exchanger, the first end of described indoor heat exchanger is connected with described second port, and the first end of described outdoor heat exchanger is connected with described 8th port; Flow pipe, one end of described flow pipe is connected with described 4th port; Check valve, described check valve to be connected on described flow pipe and at the other end of described circulation duct to one-way conduction on the direction of one end of described flow pipe.According to heating and air conditioner of the present utility model, when carrying out defrost to outdoor heat exchanger, can heat indoor, the use sense improving user is subject to simultaneously.
Description
Technical field
The utility model relates to field of household appliances, particularly a kind of heating and air conditioner.
Background technology
Along with the development of air-conditioning technical, the requirement of consumer to product comfort is more and more higher, in winter, the outdoor unit heat exchanger of heating and air conditioner there will be the phenomenon of frosting, and the defrost technology of current heating and air conditioner be mostly in indoor after heating after a while, when outdoor unit heat exchanger frosting to a certain extent time, air-conditioner is switched to kind of refrigeration cycle, namely off-premises station is as condenser, indoor set carries out defrost as evaporimeter to outdoor unit heat exchanger, the realization of having no idea of such indoor set heats, and affects the comfort of user.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of heating and air conditioner, this heating and air conditioner, when carrying out defrost to outdoor heat exchanger, can heat indoor simultaneously, and the use sense improving user is subject to.
According to heating and air conditioner of the present utility model, comprising: compressor, described compressor has exhaust outlet and gas returning port; First commutation assembly, described first commutation assembly comprises the first port to the 4th port, described first port is communicated with one of them in described 4th port with described second port, described 3rd port and described second port are communicated with another in described 4th port, and described first port is connected with described exhaust outlet; Second commutation assembly, described second commutation assembly comprises five-port to the 8th port, described five-port is communicated with one of them in described 8th port with described 6th port, described 7th port and described 6th port are communicated with another in described 8th port, described five-port is connected with described exhaust outlet, described 7th port is connected with described gas returning port, and described 3rd port is connected with described 6th port; Indoor heat exchanger and outdoor heat exchanger, the first end of described indoor heat exchanger is connected with described second port, the first end of described outdoor heat exchanger is connected with described 8th port, is in series with first throttle element and second section fluid element between the second end of described indoor heat exchanger and the second end of described outdoor heat exchanger; Flow pipe, one end of described flow pipe is connected with described 4th port, and the other end of described flow pipe is connected between described first throttle element and described second section fluid element; Check valve, described check valve to be connected on described flow pipe and at the other end of described circulation duct to one-way conduction on the direction of one end of described flow pipe.
According to heating and air conditioner of the present utility model, by controlling the action of the first commutation assembly and the second commutation assembly, control the different streams of cold-producing medium, make heating and air conditioner realize freezing, heat, operational mode that defrost etc. is different, and under the pattern of defrost, outdoor heat exchanger can realize defrost, and indoor also can realize heating simultaneously, and the use sense improving user is subject to.
In addition, following additional technical characteristic can also be had according to heating and air conditioner of the present utility model:
According to an embodiment of the present utility model, described heating and air conditioner also comprises the 3rd restricting element, and described 3rd restricting element is connected on described flow pipe.
According to an embodiment of the present utility model, described 3rd restricting element is connected between described check valve and described 4th port.
According to an embodiment of the present utility model, described 3rd restricting element is electric expansion valve or capillary.
According to an embodiment of the present utility model, described heating and air conditioner also comprises gas-liquid separator, and described gas-liquid separator comprises the gentle body outlet of entrance, and described entrance is connected with described 7th port, and described gas vent is connected with described gas returning port.
According to an embodiment of the present utility model, described first commutation assembly is cross valve.
According to an embodiment of the present utility model, described second commutation assembly is cross valve.
According to an embodiment of the present utility model, described first throttle element is electric expansion valve or capillary.
According to an embodiment of the present utility model, described second section fluid element is electric expansion valve or capillary.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the process of refrigerastion of heating and air conditioner according to the utility model embodiment;
Fig. 2 is the partial enlarged drawing that Fig. 1 circle shows A;
Fig. 3 is the schematic diagram of the heating operations of heating and air conditioner according to the utility model embodiment;
Fig. 4 is the partial enlarged drawing that Fig. 3 circle shows B;
Fig. 5 is the schematic diagram of the defrost process of heating and air conditioner according to the utility model embodiment;
Fig. 6 is the partial enlarged drawing that Fig. 5 circle shows C.
Reference numeral: the first commutation assembly 1, second commutation assembly 2, indoor heat exchanger 3, outdoor heat exchanger 4, flow pipe 5, check valve 6, compressor 7, gas-liquid separator 8, first throttle element 46, second section fluid element the 36, three restricting element 61, first port 101, second port one the 02, three port one the 03, four port one 04, five-port 205,6th port the 206, seven port the 207, eight port 208, exhaust outlet 701, gas returning port 702, entrance 801, gas vent 802.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, 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 utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, 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 utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
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 description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, 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, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, 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.
Be described in detail according to the heating and air conditioner of the utility model embodiment below in conjunction with Fig. 1 to Fig. 6.
According to the heating and air conditioner of the utility model embodiment, can comprise: the commutation of compressor 7, first commutation assembly 1, second assembly 2, indoor heat exchanger 3, outdoor heat exchanger 4, flow pipe 5 and check valve 6.
Wherein, compressor 7 has exhaust outlet 701 and gas returning port 702.Cold-producing medium is compressed by compressor 7, becomes the gas of HTHP, and the gas of HTHP enters into the heat exchanger of indoor set or off-premises station, condensation liquefaction heat release through exhaust outlet 701, to the air heat of indoor or outdoors.
As shown in Figures 1 to 6, first commutation assembly 1 comprises the first port 101 to the 4th port one 04, first port 101 is communicated with one of them in the 4th port one 04 with the second port one 02, and the 3rd port one 03 and the second port one 02 are communicated with another in the 4th port one 04.
That is, when the first port 101 is communicated with the second port one 02, the 3rd port one 03 is communicated with the 4th port one 04; When the first port 101 is communicated with the 4th port one 04, the 3rd port one 03 is communicated with the second port one 02.
As shown in Figures 1 to 6, the first port 101 is connected with exhaust outlet 701, and the cold-producing medium of HTHP enters into the first commutation assembly 1 via the first port 101, discharges from the second port one 02 or the 4th port one 04.
As shown in Figures 1 to 6, second commutation assembly 2 comprises five-port 205 to the 8th port 208, five-port 205 is communicated with one of them in the 8th port 208 with the 6th port 206, and the 7th port 207 and the 6th port 206 are communicated with another in the 8th port 208.
That is, when five-port 205 is communicated with the 6th port 206, the 7th port 207 is communicated with the 8th port 208; When five-port 205 is communicated with the 8th port 208, the 7th port 207 is communicated with the 6th port 206.
Five-port 205 is connected with exhaust outlet 701, and the cold-producing medium of HTHP enters into the second commutation assembly 2 via five-port 205, discharges from the 6th port 206 or the 8th port 208.
7th port 207 is connected with gas returning port 702, and cold-producing medium enters into gas returning port 702 from the 7th port 207, completes circulation.3rd port one 03 is communicated with the 6th port 206, thus the first commutation assembly 1 and the second commutation assembly 2 are linked together, the cold-producing medium that cold-producing medium in first commutation assembly 1 can enter in the second commutation assembly 2, second commutation assembly 2 also can enter into the first commutation assembly 1.
Shown in Fig. 6, the first end of indoor heat exchanger 3 is connected with the second port one 02, the first end of outdoor heat exchanger 4 is connected with the 8th port 208, is in series with first throttle element 46 and second section fluid element 36 between the second end of indoor heat exchanger 3 and the second end of outdoor heat exchanger 4.
When the cold-producing medium of HTHP flows to indoor heat exchanger 3 by outdoor heat exchanger 4, outdoor heat exchanger 4 is as condenser, indoor heat exchanger 3 is as evaporimeter, the cold-producing medium of HTHP dispels the heat via outdoor heat exchanger 4 condensation, indoor heat exchanger 3 is entered into after reducing pressure via first throttle element 46 and second section fluid element 36, draw the heat of the interior space, return compressor 7, complete the process to indoor refrigeration.
When the cold-producing medium of HTHP flows to outdoor heat exchanger 4 by indoor heat exchanger 3, indoor heat exchanger 3 is as condenser, outdoor heat exchanger 4 is as evaporimeter, the cold-producing medium of HTHP dispels the heat via indoor heat exchanger 3 condensation, outdoor heat exchanger 4 is entered into after reducing pressure via second section fluid element 36 and first throttle element 46, the heat of the suction chamber external space, returns compressor 7, completes the heating operations to indoor.
Certainly, outdoor heat exchanger 4 and indoor heat exchanger 3 can all as condensers, the cold-producing medium of HTHP outwards dispels the heat via outdoor heat exchanger 4, compressor 7 is returned after reducing pressure via first throttle element 46, the cold-producing medium of HTHP outwards dispels the heat via indoor heat exchanger 3, return compressor 7 after reducing pressure via second section fluid element 36, thus complete indoor heating, process to outdoor heat exchanger 4 defrost.
As shown in figures 1 to 6, one end of flow pipe 5 is connected with the 4th port one 04, and another section of flow pipe 5 is connected between first throttle element 46 and second section fluid element 36.
Alternatively, first throttle element 46 can be electric expansion valve or capillary, and second section fluid element 36 can be electric expansion valve or capillary.
Further, check valve 6 is connected on flow pipe 5, and check valve 6 at the other end of flow pipe 5 to one-way conduction on the direction of one end of flow pipe 5.In other words, as shown in Figures 1 to 6, cold-producing medium can only between first throttle element 46 and second section fluid element 36 to conducting the direction of the 4th port one 04.
Be described below in detail and describe according to the refrigeration of the cold-warm type refrigerator of the utility model embodiment, heat the principle with defrost.
Refrigeration principle:
As depicted in figs. 1 and 2, in the first commutation assembly 1, the first port 101 is communicated with the 4th port one 04, and the second port one 02 is communicated with the 3rd port one 03.In the second commutation assembly 2, five-port 205 is communicated with the 8th port 208, and the 6th port 206 is communicated with the 7th port 207.The cold-producing medium of the HTHP of discharging from the exhaust outlet 701 of compressor 7 is via five-port 205 and the 8th port 208, enter outdoor heat exchanger 4 and carry out condensation heat radiation, then become the cold-producing medium of low-temp low-pressure with second section fluid element 36 throttling by first throttle element 46, enter evaporation endothermic in indoor heat exchanger 3, then the first commutation assembly 1 is entered into by the second port one 02, the second commutation assembly 2 is entered into via the 3rd port one 03 and the 6th port 206, gas returning port 702 via the 7th port 207 and compressor 7 enters into compressor 7, completes the refrigeration to indoor.In the process to indoor refrigeration, the pressure of the cold-producing medium of the 4th port one 04 is higher than the pressure of the cold-producing medium between first throttle element 46 and second section fluid element 36, and now check valve 6 not conducting, so do not have flow of refrigerant in flow pipe 5.
Heat principle:
As shown in Figure 3 and Figure 4, in the first commutation assembly 1, the first port 101 is communicated with the 4th port one 04, and the second port one 02 is communicated with the 3rd port one 03.In the second commutation assembly 2, five-port 205 is communicated with the 6th port 206, and the 7th port 207 is communicated with the 8th port 208.The cold-producing medium of the HTHP of discharging from the exhaust outlet 701 of compressor 7 is via five-port 205, the 6th port 206, the 3rd port one 03, second port one 02, enter into indoor heat exchanger 3 and carry out condensation heat radiation, then become the cold-producing medium of low-temp low-pressure with first throttle element 46 throttling via second section fluid element 36, enter outdoor heat exchanger 4 and carry out evaporation endothermic, then the gas returning port 702 through the 8th port 208, the 7th port 207 and compressor 7 enters into compressor 7, completes the heating operations to indoor.In heating operations, the pressure of the cold-producing medium of the 4th port one 04 is higher than the pressure of the cold-producing medium between first throttle element 46 and second section fluid element 36, and now check valve 6 not conducting, so do not have flow of refrigerant in flow pipe 5.
Defrost principle:
As shown in Figure 5 and Figure 6, in the first commutation assembly 1, the first port 101 is communicated with the second port one 02, and the 3rd port one 03 is communicated with the 4th port one 04.In the second commutation assembly 2, five-port 205 is communicated with the 8th port 208, and the 6th port 206 is communicated with the 7th port 207.The cold-producing medium of the HTHP of discharging from the exhaust outlet 701 of compressor 7 is divided into two-way, one tunnel enters into indoor heat exchanger 3 through the first port 101, second port one 02 and carries out condensation heat radiation, then flow pipe 5 is flowed to by second section fluid element 36, enter into compressor 7, complete the heating operations to indoor; An other road flow of refrigerant, through five-port 205 and the 8th port 208, enters into outdoor heat exchanger 4 and carries out condensation heat radiation, after then flowing into flow pipe 5 by first throttle element 46, enter into compressor 7, and then complete defrost process.In defrost process, the refrigerant pressure of the 4th port one 04 is less than the pressure of the cold-producing medium between first throttle element 46 and second section fluid element 36, and therefore check valve 6 can conducting.
Thus, in the process of defrost, indoor heat exchanger 3 and outdoor heat exchanger 4 can use as condenser, indoor can realize heating, outside can realize defrost, and origin of heat is in the input power of compressor 7, and achieving in defrost process air-conditioner can normal heating operation.
Alternatively, flow pipe 5 can be provided with the 3rd restricting element 61.Particularly, the 3rd restricting element 61 can be arranged between check valve 6 and the 4th port one 04.Thus, the pressure of cold-producing medium is made to reduce further.
Further, the 3rd restricting element 61 can be electric expansion valve or capillary.
Describe in detail according to the refrigeration of the heating and air conditioner with the 3rd restricting element 61 of the utility model embodiment below in conjunction with accompanying drawing 1 to Fig. 6, heat and the principle of defrost.
As shown in Figures 1 to 6, commutate with first respectively the first port 101 of assembly 1 and the second five-port 205 commutating assembly 2 of the exhaust outlet 701 of compressor 7 is connected, second port one 02 is connected with one end of indoor heat exchanger 3, 3rd port one 03 is communicated with the 6th port 206, 4th port one 04 is connected with one end of check valve 6, 7th port 207 is connected with the gas returning port 702 of compressor 7, 8th port 208 is connected with one end of outdoor heat exchanger 4, first throttle element 46 and second section fluid element 36 is in series with between the other end of indoor heat exchanger 3 and outdoor heat exchanger 4, flow pipe 5 is drawn by three-way pipe between first throttle element 46 and second section fluid element 36, flow pipe 5 is provided with the 3rd restricting element 61 and check valve 6.
Refrigeration principle:
As depicted in figs. 1 and 2, in the first commutation assembly 1, the first port 101 is communicated with the 4th port one 04, and the second port one 02 is communicated with the 3rd port one 03.In the second commutation assembly 2, five-port 205 is communicated with the 8th port 208, and the 6th port 206 is communicated with the 7th port 207.The cold-producing medium of the HTHP of discharging from the exhaust outlet 701 of compressor 7 is via five-port 205 and the 8th port 208, enter outdoor heat exchanger 4 and carry out condensation heat radiation, then become the cold-producing medium of low-temp low-pressure with second section fluid element 36 throttling by first throttle element 46, enter evaporation endothermic in indoor heat exchanger 3, then the first commutation assembly 1 is entered into by the second port one 02, the second commutation assembly 2 is entered into via the 3rd port one 03 and the 6th port 206, gas returning port 702 via the 7th port 207 and compressor 7 enters into compressor 7, completes the refrigeration to indoor.In the process to indoor refrigeration, the pressure of the cold-producing medium of the 4th port one 04 is higher than the pressure of the cold-producing medium between first throttle element 46 and second section fluid element 36, and now check valve 6 not conducting, so do not have flow of refrigerant in flow pipe 5.
Heat principle:
As shown in Figure 3 and Figure 4, in the first commutation assembly 1, the first port 101 is communicated with the 4th port one 04, and the second port one 02 is communicated with the 3rd port one 03.In the second commutation assembly 2, five-port 205 is communicated with the 6th port 206, and the 7th port 207 is communicated with the 8th port 208.The cold-producing medium of HTHP of discharging from compressor 7 exhaust outlet 701 is via five-port 205, the 6th port 206, the 3rd port one 03, second port one 02, enter into indoor heat exchanger 3 and carry out condensation heat radiation, then become the cold-producing medium of low-temp low-pressure with first throttle element 46 throttling via second section fluid element 36, enter outdoor heat exchanger 4 and carry out evaporation endothermic, then the gas returning port 702 through the 8th port 208, the 7th port 207 and compressor 7 enters into compressor 7, completes the heating operations to indoor.In heating operations, the pressure of the cold-producing medium of the 4th port one 04 is higher than the pressure of the cold-producing medium between first throttle element 46 and second section fluid element 36, and now check valve 6 not conducting, so do not have flow of refrigerant in flow pipe 5.
Defrost principle:
As shown in Figure 5 and Figure 6, in the first commutation assembly 1, the first port 101 is communicated with the second port one 02, and the 3rd port one 03 is communicated with the 4th port one 04.In the second commutation assembly 2, five-port 205 is communicated with the 8th port 208, and the 6th port 206 is communicated with the 7th port 207.The cold-producing medium of the HTHP of discharging from the exhaust outlet 701 of compressor 7 is divided into two-way, one tunnel enters into indoor heat exchanger 3 through the first port 101, second port one 02 and carries out condensation heat radiation, then flow pipe 5 is flowed to by second section fluid element 36, after the 3rd restricting element 61 throttling, enter into compressor 7 through the 4th port one 04, the 3rd port one 03, the 6th port 206 and the 7th port 207, complete the heating operations to indoor; An other road flow of refrigerant is through five-port 205 and the 8th port 208, enter into outdoor heat exchanger 4 and carry out condensation heat radiation, then flow pipe 5 is flowed into by first throttle element 46, after the 3rd restricting element 61 throttling, enter into compressor 7 through the 4th port one 04, the 3rd port one 03, the 6th port 206 and the 7th port 207, and then complete defrost process.In defrost process, the refrigerant pressure of the 4th port one 04 is less than the pressure of the cold-producing medium between first throttle element 46 and second section fluid element 36, and therefore check valve 6 can conducting.
Thus, in the process of defrost, indoor heat exchanger 3 and outdoor heat exchanger 4 can use as condenser, indoor can realize heating, outside can realize defrost, and origin of heat is in the input power of compressor 7, and achieving in defrost process air-conditioner can normal heating operation.
Be understandable that, structure for commutation assembly does not do particular determination, commutation assembly 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 magnetic valve, second pipe is in series with the second magnetic valve, 3rd pipeline is in series with the 3rd magnetic valve, 4th pipeline is in series with the 4th magnetic valve, the junction of the first pipeline and second pipe limits first interface, the junction of the first pipeline and the 4th pipeline limits the second interface, the junction of the 4th pipeline and the 3rd pipeline limits the 4th interface, the junction of the 3rd pipeline and second pipe limits the 3rd interface, first magnetic valve and the 3rd magnetic valve are opened simultaneously or close, second magnetic valve and the 4th magnetic valve are opened simultaneously or close.Wherein first interface forms the first above-mentioned port or five-port, and the second interface forms the second above-mentioned port or the 6th port, and the 3rd interface forms above-mentioned 3rd port or the 7th port, and the 4th interface forms the 4th above-mentioned port or the 8th port.
In a preferred embodiment of the present utility model, commutation assembly can be cross valve.
According to the heating and air conditioner of the utility model embodiment, by controlling the action of the first commutation assembly 1 and the second commutation assembly 2, control the different streams of cold-producing medium, make heating and air conditioner realize freezing, heat, operational mode that defrost etc. is different, and under the pattern of defrost, outdoor heat exchanger 4 can realize defrost, and indoor also can realize heating simultaneously, and the use sense improving user is subject to.
In embodiments more of the present utility model, as shown in Figures 1 to 6, heating and air conditioner can also comprise gas-liquid separator 8, and gas-liquid separator 8 comprises entrance 801 and gas vent 802, entrance 801 is connected with the 7th port 207, and gas vent 802 is connected with gas returning port 702.
Thus, make the cold-producing medium flow in compressor 7 be all gas, prevent compressor 7 the cold-producing medium of gas returning port 702 inspiration liquid state produce liquid hazards compressor.
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 utility model 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 described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (9)
1. a heating and air conditioner, is characterized in that, comprising:
Compressor, described compressor has exhaust outlet and gas returning port;
First commutation assembly, described first commutation assembly comprises the first port to the 4th port, described first port is communicated with one of them in described 4th port with described second port, described 3rd port and described second port are communicated with another in described 4th port, and described first port is connected with described exhaust outlet;
Second commutation assembly, described second commutation assembly comprises five-port to the 8th port, described five-port is communicated with one of them in described 8th port with described 6th port, described 7th port and described 6th port are communicated with another in described 8th port, described five-port is connected with described exhaust outlet, described 7th port is connected with described gas returning port, and described 3rd port is connected with described 6th port;
Indoor heat exchanger and outdoor heat exchanger, the first end of described indoor heat exchanger is connected with described second port, the first end of described outdoor heat exchanger is connected with described 8th port, is in series with first throttle element and second section fluid element between the second end of described indoor heat exchanger and the second end of described outdoor heat exchanger;
Flow pipe, one end of described flow pipe is connected with described 4th port, and the other end of described flow pipe is connected between described first throttle element and described second section fluid element;
Check valve, described check valve to be connected on described flow pipe and at the other end of described circulation duct to one-way conduction on the direction of one end of described flow pipe.
2. heating and air conditioner according to claim 1, is characterized in that, also comprises the 3rd restricting element, and described 3rd restricting element is connected on described flow pipe.
3. heating and air conditioner according to claim 2, is characterized in that, described 3rd restricting element is connected between described check valve and described 4th port.
4. heating and air conditioner according to claim 2, is characterized in that, described 3rd restricting element is electric expansion valve or capillary.
5. heating and air conditioner according to claim 1, is characterized in that, also comprises gas-liquid separator, and described gas-liquid separator comprises the gentle body outlet of entrance, and described entrance is connected with described 7th port, and described gas vent is connected with described gas returning port.
6. heating and air conditioner according to claim 1, is characterized in that, described first commutation assembly is cross valve.
7. heating and air conditioner according to claim 1, is characterized in that, described second commutation assembly is cross valve.
8. heating and air conditioner according to claim 1, is characterized in that, described first throttle element is electric expansion valve or capillary.
9. heating and air conditioner according to claim 1, is characterized in that, described second section fluid element is electric expansion valve or capillary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420717410.3U CN204313517U (en) | 2014-11-24 | 2014-11-24 | Heating and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420717410.3U CN204313517U (en) | 2014-11-24 | 2014-11-24 | Heating and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204313517U true CN204313517U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420717410.3U Withdrawn - After Issue CN204313517U (en) | 2014-11-24 | 2014-11-24 | Heating and air conditioner |
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| CN (1) | CN204313517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501452A (en) * | 2014-11-24 | 2015-04-08 | 广东美的制冷设备有限公司 | Cooling and heating air conditioner |
-
2014
- 2014-11-24 CN CN201420717410.3U patent/CN204313517U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501452A (en) * | 2014-11-24 | 2015-04-08 | 广东美的制冷设备有限公司 | Cooling and heating air conditioner |
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