CN204630139U - Air-conditioner - Google Patents
Air-conditioner Download PDFInfo
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- CN204630139U CN204630139U CN201520269287.8U CN201520269287U CN204630139U CN 204630139 U CN204630139 U CN 204630139U CN 201520269287 U CN201520269287 U CN 201520269287U CN 204630139 U CN204630139 U CN 204630139U
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Abstract
The utility model discloses a kind of air-conditioner, comprise compressor, compressor has exhaust outlet and gas returning port; First commutation assembly, first commutation assembly has the first valve port to the 4th valve port, and the first valve port is communicated with one of them in the 3rd valve port with the second valve port, and the 4th valve port and the second valve port are communicated with another in the 3rd valve port, first valve port is connected with exhaust outlet, and the 4th valve port is connected with gas returning port; Second commutation assembly, the second commutation assembly has first interface to the 3rd interface, and first interface is communicated with one of them in the 3rd interface with the second interface, and first interface is connected with the second valve port; Indoor heat exchanger, the first end of indoor heat exchanger is connected with the 3rd valve port; 3rd commutation assembly; First outdoor heat exchanger and the second outdoor heat exchanger; First refrigerant flow and the second refrigerant flow.Air-conditioner of the present utility model, can improve the comfortableness of user when using air-condition device heat-production functions to a certain extent.
Description
Technical field
The utility model relates to art of refrigeration units, especially relates to a kind of air-conditioner.
Background technology
When winter, using air-condition device heated, the air-conditioner outdoor unit of air-conditioner there will be the phenomenon of frosting due to low temperature.Point out in prior art, to the defrosting of air-conditioner outdoor unit normally after air-conditioner runs a period of time, the heating mode of air-conditioner is switched to refrigeration mode, indoor heat exchanger is as the heat in evaporimeter absorption chamber, outdoor heat exchanger as condenser to dispel the heat to air-conditioner outdoor unit, thus realize defrosting, but in this absorption chamber, the Defrost technology of heat has had a strong impact on the comfortableness 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 air-conditioner, described air-conditioner can improve the comfortableness of user.
According to 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 has the first valve port to the 4th valve port, described first valve port is communicated with one of them in the 3rd valve port with the second valve port, described 4th valve port and described second valve port are communicated with another in described 3rd valve port, described first valve port is connected with described exhaust outlet, and described 4th valve port is connected with described gas returning port; Second commutation assembly, described second commutation assembly has first interface to the 3rd interface, and described first interface is communicated with one of them in described 3rd interface with the second interface, and described first interface is connected with described second valve port; Indoor heat exchanger, the first end of described indoor heat exchanger is connected with described 3rd valve port; 3rd commutation assembly, described 3rd commutation assembly has the 4th and is interfaced to the 6th interface, described 4th interface is communicated with one of them in described 6th interface with the 5th interface, is connected with the first throttle element and the first controller that are connected in parallel between described 4th interface and the second end of described indoor heat exchanger; First outdoor heat exchanger and the second outdoor heat exchanger, the first end of described first outdoor heat exchanger is connected with described second interface, the first end of described second outdoor heat exchanger is connected with described 5th interface, is connected with the second section fluid element and second controller that are connected in parallel between the second end of described first outdoor heat exchanger and the second end of described second outdoor heat exchanger; First refrigerant flow and the second refrigerant flow, one end of described first refrigerant flow is connected with described 3rd interface, the other end of described second refrigerant flow is connected between described second outdoor heat exchanger and described 5th interface, one end of described second refrigerant flow is connected with described 6th interface, and the other end of described second refrigerant flow is connected between described first outdoor heat exchanger and described second interface.
According to air-conditioner of the present utility model, by arranging the first outdoor heat exchanger and the second outdoor heat exchanger in air-conditioner outdoor unit, and second section fluid element and second controller is connected in parallel between the first outdoor heat exchanger and the second outdoor heat exchanger, second commutation assembly and the 3rd commutation assembly are set simultaneously, and first refrigerant flow and the second refrigerant flow, this can make indoor heat exchanger continue to indoor heating when the first outdoor heat exchanger and the second outdoor heat exchanger defrost, thus improves the comfortableness of user when using air-condition device heat-production functions to a certain extent.
According to embodiments more of the present utility model, described second commutation assembly is two-bit triplet magnetic valve.
In embodiments more of the present utility model, described 3rd commutation assembly is two-bit triplet magnetic valve.
According to embodiments more of the present utility model, described first commutation assembly is cross valve.
According to embodiments more of the present utility model, described first controller is configured to be in normally off.
In embodiments more of the present utility model, described second controller is configured to be in normally open.
According to embodiments more of the present utility model, described first throttle element is capillary or electric expansion valve, and described second section fluid element is capillary or electric expansion valve.
In embodiments more of the present utility model, described first outdoor heat exchanger and described second outdoor heat exchanger are two independently heat exchange elements, or described first outdoor heat exchanger and described second outdoor heat exchanger are two parts of a heat exchange element.
Accompanying drawing explanation
Fig. 1 flows to schematic diagram according to the air-conditioner of the utility model embodiment refrigerant when kind of refrigeration cycle;
Fig. 2 flows to schematic diagram according to the refrigerant that air-conditioner is heating circulation of the utility model embodiment;
Refrigerant when Fig. 3 is the first outdoor heat exchanger defrosting according to the air-conditioner of the utility model embodiment flows to schematic diagram;
Refrigerant when Fig. 4 is the second outdoor heat exchanger defrosting according to the air-conditioner of the utility model embodiment flows to schematic diagram;
Control flow schematic diagram when Fig. 5 is the first outdoor heat exchanger defrosting according to the air-conditioner of the utility model embodiment;
Control flow schematic diagram when Fig. 6 is the second outdoor heat exchanger defrosting according to the air-conditioner of the utility model embodiment.
Reference numeral:
Air-conditioner 100;
Compressor 1; Exhaust outlet A; Gas returning port B;
First commutation assembly 2; First valve port C; Second valve port D; 3rd valve port E; 4th valve port F;
Second commutation assembly 3; First interface G; Second interface H; 3rd interface I;
Indoor heat exchanger 4;
3rd commutation assembly 5; 4th interface J; 5th interface K; 6th interface L;
First throttle element 6;
First controller 7;
First outdoor heat exchanger 8;
Second outdoor heat exchanger 9;
Second section fluid element 10;
Second controller 11;
First refrigerant flow 12;
Second refrigerant flow 13.
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.
Below with reference to the accompanying drawings describe the air-conditioner 100 according to the utility model embodiment, may be used for regulating indoor temperature.
As Figure 1-Figure 4, compressor 1, first commutation assembly 2, second commutation assembly 3, indoor heat exchanger 4, the 3rd commutation assembly 5, first outdoor heat exchanger 8, second outdoor heat exchanger 9, first refrigerant flow 12 and the second refrigerant flow 13 can be comprised according to the air-conditioner 100 of the utility model embodiment.
Particularly, compressor 1 has exhaust outlet A and gas returning port B, and it is inner that refrigerant enters into compressor 1 from gas returning port B, forms the refrigerant of HTHP, discharge from exhaust outlet A after compressor 1 compresses.
First commutation assembly 2 has the first valve port C to the 4th valve port F, wherein, first valve port C is communicated with one of them in the 3rd valve port E with the second valve port D, 4th valve port F and the second valve port D are communicated with another in the 3rd valve port E, in other words, when the first valve port C is communicated with the second valve port D, the 4th valve port F is communicated with the 3rd valve port E.When the first valve port C is communicated with the 3rd valve port E, the 4th valve port F is communicated with the second valve port D.In addition, the first valve port C is connected with exhaust outlet A, and the 4th valve port F is connected with gas returning port B.
Preferably, the first commutation assembly 2 is cross valve, when the first commutation assembly 2 power-off, first valve port C is communicated with the second valve port D, and the 4th valve port F is communicated with the 3rd valve port E, when the first commutation assembly 2 is energized, first valve port C is communicated with the 3rd valve port E, and the 4th valve port F is communicated with the second valve port D.But be understandable that, the first commutation assembly 2 can be formed as other elements, can realize commutating as long as there is the first valve port C to the 4th valve port F.
Because the first valve port C of the first commutation assembly 2 can be communicated with to realize commutating with the second valve port D with one of them in the 3rd valve port E, 4th valve port F and the second valve port D are communicated with to realize commutating with another in the 3rd valve port E, this makes air-conditioner 100 can change between refrigeration mode and heating mode, thus achieves refrigerating function and the heat-production functions of air-conditioner 100.
As Figure 1-Figure 4, the second commutation assembly 3 has first interface G to the 3rd interface I, and wherein first interface G is communicated with one of them in the 3rd interface I with the second interface H, and first interface G is connected with the second valve port D.That is, when first interface G is communicated with the second interface H, first interface G is not communicated with the 3rd interface I.When first interface G is communicated with the 3rd interface I, first interface G is not communicated with the second interface H.
Preferably, second commutation assembly 3 is three-way magnetic valve, and when the second commutation assembly 3 power-off, one end of first interface G is communicated with the second valve port D, the other end is communicated with the second interface H, and be not communicated with the 3rd interface I, when the second commutation assembly 3 is energized, one end of first interface G is communicated with the second valve port D, the other end is communicated with the 3rd interface I, and be not communicated with the second interface H, thus by the mode of the coil electricity in three-way magnetic valve or power-off, realize the commutation of three-way magnetic valve.
The first end of indoor heat exchanger 4 is connected with the 3rd valve port E, and the refrigerant in refrigerant loop can flow to the 3rd valve port E by heat exchanger 4 indoor, certainly also can flow to indoor heat exchanger 4 from the 3rd valve port E.
3rd commutation assembly 5 has the 4th interface J to the 6th interface L, 4th interface J is communicated with one of them in the 6th interface L with the 5th interface K, in other words, when the 4th interface J is communicated with the 5th interface K, 4th interface J is not communicated with the 6th interface L, when the 4th interface J is communicated with the 6th interface L, the 4th interface J is not communicated with the 5th interface K, thus realizes the commutation of the 3rd commutation assembly 5 in this way.
The first throttle element 6 and the first controller 7 that are connected in parallel is connected with between 4th interface J and the second end of indoor heat exchanger 4, first throttle element 6 can to the coolant throttle step-down in refrigerant flow, first controller 7 may be used for the break-make controlling refrigerant flow, such as, when the first controller 7 is opened, refrigerant between 4th interface J and the second end of indoor heat exchanger 4 is by the first controller 7, and not by first throttle element 6, when the first controller 7 cuts out, refrigerant between 4th interface J and the second end of indoor heat exchanger 4 is then by first throttle element 6, and not by the first controller 7.
Preferably, 3rd commutation assembly 5 is three-way magnetic valve, when the 3rd commutation assembly 5 power-off, 4th interface J is communicated with the 5th interface K, and is not communicated with the 6th interface L, when the 3rd commutation assembly 5 is energized, 4th interface J is communicated with the 6th interface L, and be not communicated with the 5th interface K, thus by the mode of the coil electricity in three-way magnetic valve or power-off, realize the commutation of three-way magnetic valve.
The first end of the first outdoor heat exchanger 8 is connected with the second interface H, the first end of the second outdoor heat exchanger 9 is connected with the 5th interface K, the second section fluid element 10 and second controller 11 that are connected in parallel is connected with between second end of the first outdoor heat exchanger 8 and the second end of the second outdoor heat exchanger 9, second controller 11 is for controlling the break-make of refrigerant in refrigerant flow, and second section fluid element 10 may be used for the coolant throttle step-down in refrigerant flow.Be understandable that, when second controller 11 is opened, refrigerant between second end of the first outdoor heat exchanger 8 and the second end of the second outdoor heat exchanger 9 flows through second controller 11 to realize the conducting of refrigerant, and without second section fluid element 10, when second controller 11 is closed, refrigerant between second end of the first outdoor heat exchanger 8 and the second end of the second outdoor heat exchanger 9 through second section fluid element 10 with reducing pressure by regulating flow, and without second controller 10, thus, by second section fluid element 10 and second controller 11 are connected in parallel between the second end of the first outdoor heat exchanger 8 and the second end of the second outdoor heat exchanger 9, can so that air-conditioner 100 defrosts to the first outdoor heat exchanger 8 and the second outdoor heat exchanger 9 respectively.
One end of first refrigerant flow 12 is connected with the 3rd interface I, the other end of the first refrigerant flow 12 is connected between the second outdoor heat exchanger 9 and the 5th interface K, one end of second refrigerant flow 13 is connected with the 6th interface L, the other end of the second refrigerant flow 13 is connected between the first outdoor heat exchanger 8 and the second interface H, thus, the break-make of the first refrigerant flow 12 and the second refrigerant flow 13 by the commutation control of the second commutation assembly 3 and the 3rd commutation assembly 5, thus is convenient to air-conditioner 100 and is defrosted to the first outdoor heat exchanger 8 or the second outdoor heat exchanger 9.
Air-conditioner 100 in the utility model embodiment is when defrosting to the first outdoor heat exchanger 8 and the second outdoor heat exchanger 9 respectively, indoor heat exchanger 4 continues to indoor radiating, the indoor auxiliary heating device of air-conditioner 100 also can be opened simultaneously, to increase indoor heating effect further, because indoor auxiliary heating device is prior art, be not just described in detail herein.It is appreciated of course that, when defrosting, if heat indoor environment without the need to indoor auxiliary heating device, also can be closed.In the following description, all to defrost time, indoor auxiliary heating device is opened and is described.
As shown in Figure 1, when air-conditioner 100 is in refrigeration mode, first valve port C of the first commutation assembly 2 is communicated with the second valve port D, 3rd valve port E is communicated with the 4th valve port F, the first interface G of the second commutation assembly 3 is communicated with the second interface H, 5th interface K of the 3rd commutation assembly 5 is communicated with the 4th interface J, and the first controller 7 is in closed condition, and second controller 11 is in open mode.The refrigerant of the HTHP after compressor 1 compresses is through the exhaust outlet A of compressor 1, flow through the first valve port C and the second valve port D, then by first interface G and the second interface H of the second commutation assembly 3, enter into the first outdoor heat exchanger 8 and the second outdoor heat exchanger 9, and energy exchange is carried out with external environment in the first outdoor heat exchanger 8 and the second outdoor heat exchanger 9, then by the 5th interface K and the 4th interface J of the 3rd commutation assembly 5, enter into first throttle element 6, the refrigerant of low-temp low-pressure is formed after first throttle element 6 reducing pressure by regulating flow, enter into indoor heat exchanger 4 subsequently with the heat in absorption chamber, reduce indoor temperature, refrigerant after heat exchange is by the 3rd valve port E and the 4th valve port F, and turn back to compressor 1 by the gas returning port B of compressor 1, thus formation kind of refrigeration cycle, reciprocal with this.
As shown in Figure 2, when air-conditioner 100 is in heating mode, first valve port C of the first commutation assembly 2 is communicated with the 3rd valve port E and the 4th valve port F is communicated with the second valve port D, the first interface G of the second commutation assembly 3 is communicated with the second interface H, 5th interface K of the 3rd commutation assembly 5 is communicated with the 4th interface J, first controller 7 cuts out, and second controller 11 is opened.The refrigerant of the HTHP after compressor 1 compresses flows through the first valve port C and the 3rd valve port E through the exhaust outlet A of compressor 1, enter into indoor heat exchanger 4, and in indoor heat exchanger 4 with indoor environment heat exchange, form the liquid refrigerants of HTHP, then first throttle element 6 is entered into, the refrigerant of low-temp low-pressure is formed after first throttle element 6 reducing pressure by regulating flow, through the 4th interface J and the 5th interface K of the 3rd commutation assembly 5, enter into the second outdoor heat exchanger 9 and the heat absorption of the first outdoor heat exchanger 8, subsequently by the second interface H and the first interface G of the second commutation assembly 3, flow through the second valve port D and the 4th valve port F, compressor 1 is turned back to through the gas returning port B of compressor 1, reciprocal with this, what form air-conditioner 100 heats circulation.
As shown in Figure 3, when air-conditioner 100 is in the first self-circulating defrosting pattern, during to the first outdoor heat exchanger 8 defrost, first valve port C of the first commutation assembly 2 is communicated with the 3rd valve port E, 4th valve port F is communicated with the second valve port D, the first interface G of the second commutation assembly 3 is communicated with the 3rd interface I, 4th interface J of the 3rd commutation assembly 5 is communicated with the 6th interface L, first controller 7 is opened, second controller 11 is closed, indoor auxiliary heating device is opened, now the refrigerant of the HTHP of the exhaust outlet A discharge of compressor 1 is through the first valve port C and the 3rd valve port E, flow into indoor heat exchanger 4 condensation heat radiation to improve indoor temperature, form the liquid refrigerants of HTHP subsequently, then by the first controller 7, through the 4th interface J and the 6th interface L of the 3rd commutation assembly 5, and by the second refrigerant flow 13, flow into condensation in the first outdoor heat exchanger 8 to dispel the heat to defrost to the first outdoor heat exchanger 8, with after after second section fluid element 10 reducing pressure by regulating flow, enter into the second outdoor heat exchanger 9 evaporation endothermic, then the 3rd interface I and the first interface G of the second commutation assembly 3 is flow into by the first refrigerant flow 12, subsequently by the second valve port D and the 4th valve port F, compressor 1 is turned back to through the gas returning port B of compressor 1, to realize the defrost to the first outdoor heat exchanger 8.In the defrost process to the first outdoor heat exchanger 8, indoor heat exchanger 4 continues to indoor heating, and the unlatching of adding indoor auxiliary heating device further increases heating effect, which greatly improves the comfortableness of user.
As shown in Figure 4, when air-conditioner 100 is in the second self-circulating defrosting pattern, during to the second outdoor heat exchanger 9 defrost, first valve port C of the first commutation assembly 2 is communicated with the 3rd valve port E, 4th valve port F is communicated with the second valve port D, the first interface G of the second commutation assembly 3 is communicated with the second interface H, 4th interface J of the 3rd commutation assembly 5 is communicated with the 5th interface K, first controller 7 is opened, second controller 11 is closed, indoor auxiliary heating device is opened, now the refrigerant of the HTHP of the exhaust outlet A discharge of compressor 1 is through the first valve port C and the 3rd valve port E, flow into condensation in indoor heat exchanger 4 to dispel the heat to improve indoor temperature, form the liquid refrigerants of HTHP subsequently, then by the first controller 7, flow through the 4th interface J and the 5th interface K of the 3rd commutation assembly 5, then the second outdoor heat exchanger 9 condensation heat radiation is entered into, to defrost to the second outdoor heat exchanger 9, afterwards after second section fluid element 10 reducing pressure by regulating flow, enter into evaporation endothermic in the first outdoor heat exchanger 8, subsequently by the second interface H and the first interface G of the second commutation assembly 3, flow through the second valve port D and the 4th valve port F of the first commutation assembly 2, compressor 1 is turned back to through the gas returning port B of compressor 1, the defrost to the second outdoor heat exchanger 9 is back and forth realized with this.In the defrost process to the second outdoor heat exchanger 9, indoor heat exchanger 4 continues to indoor heating, and the unlatching of adding indoor auxiliary heating device further increases heating effect, thus drastically increases the comfortableness of user.
According to the air-conditioner 100 of the utility model embodiment, by arranging the first outdoor heat exchanger 8 and the second outdoor heat exchanger 9 in air-conditioner outdoor unit, and second section fluid element 10 and second controller 11 is connected in parallel between the first outdoor heat exchanger 8 and the second outdoor heat exchanger 9, second commutation assembly 3 and the 3rd commutation assembly 5 are set simultaneously, and first refrigerant flow 12 and the second refrigerant flow 13, this can make indoor heat exchanger 4 continue to indoor heating when the first outdoor heat exchanger 8 and the second outdoor heat exchanger 9 defrost, solve the problem that when existing air-conditioner defrosts in outside, indoor cannot heat.
According to embodiments more of the present utility model, first controller 7 is configured to be in normally off, only have when air-conditioner 100 is in defrost pattern, first controller 7 is just opened, thus, without the need to controlling the running status of the first controller 7, being convenient to the controlling run of air-conditioner 100, making air-conditioner 100 be in refrigeration for a long time or heat state.
In embodiments more of the present utility model, second controller 11 is configured to be in normally open, thus is convenient to the normal work of air-conditioner 100 when refrigeration mode and heating mode.
Alternatively, first throttle element 6 is capillary or electric expansion valve, second section fluid element 10 is also capillary or electric expansion valve, such as, first throttle element 6 and second section fluid element 10 can be capillary simultaneously or be electric expansion valve simultaneously, certainly, first throttle element 6 also can be one in capillary or electric expansion valve, and second section fluid element 10 is another in capillary or electric expansion valve.Further alternatively, first throttle element 6 and second section fluid element 10 are electric expansion valve, because the aperture by controlling electric expansion valve can control the size of cold medium flux, when electronic expansion valve opening is maximum without throttling action, therefore, without the need to arrange and the controller of electric expansion valve parallel connection can realize reducing pressure by regulating flow to refrigerant and break-make, this has saved cost to a certain extent.
According to embodiments more of the present utility model, the first outdoor heat exchanger 8 and the second outdoor heat exchanger 9 are two independently heat exchange elements, thus, can improve the exchange capability of heat of outdoor heat exchanger to a great extent.Certainly, the utility model is not limited thereto, and the first outdoor heat exchanger 8 and the second outdoor heat exchanger 9 also can be two parts of a heat exchange element, and not only structure is simple, but also has saved cost to a certain extent.
Below the control method of the air-conditioner according to the utility model embodiment is described in detail, wherein air-conditioner is the air-conditioner according to the utility model above-described embodiment, the first temperature sensor, the second temperature sensor and three-temperature sensor can be provided with in air-conditioner, wherein, first temperature sensor is for detecting the temperature of the first outdoor heat exchanger, second temperature sensor is for detecting the temperature of the second outdoor heat exchanger, and three-temperature sensor is for detecting the environment temperature in air-conditioner outdoor unit.
According to the control method of the air-conditioner of the utility model embodiment, as follows:
When following arbitrary condition meets, control air-conditioner and enter the first self-circulating defrosting pattern, when the first self-circulating defrosting pattern, first valve port of the first commutation assembly is communicated with the 3rd valve port, and the 4th valve port is communicated with the second valve port, the first interface of the second commutation assembly and the 3rd orifice, 4th interface of the 3rd commutation assembly and the 6th orifice, first controller is opened, and second controller is closed, and defrosts to the first outdoor heat exchanger:
Condition one, compressor is accumulative run t1 minute after, first temperature T1 is less than the first predetermined value T11, and the first temperature T1 and the first predetermined difference value BT1 sum are less than or equal to T10, and the 3rd temperature T3 > the 3rd predetermined value T33, wherein the first temperature T1 is the temperature of the first outdoor heat exchanger, second temperature T2 is the temperature of the second outdoor heat exchanger, 3rd temperature T3 is the environment temperature in air-conditioner outdoor unit, T10 be air conditioner heat-production run and compressor start continuous service after m1 minute to the minimum of a value of the T1 in m2 minute.
Condition two, compressor is accumulative run t2 minute after, the first temperature T1 is less than the 4th predetermined value T12, the 3rd temperature T3 > the 5th predetermined value T34, and continues m3 minute.
Condition three, compressor is accumulative run t3 minute after, the first temperature T1 is less than the 6th predetermined value T13, the 3rd temperature T3 > the 7th predetermined value T35.
When meeting above-mentioned condition one to any one condition in condition three between the environment temperature in the temperature, air-conditioner outdoor unit of the first outdoor heat exchanger and each preset temperature, air-conditioner just enters the first self-circulating defrosting pattern, to the first outdoor heat exchanger defrost.
Be understandable that, the concrete numerical value of the first predetermined value T11, the first predetermined difference value BT1, the 3rd predetermined value T33, the 4th predetermined value T12, the 5th predetermined value T34, the 6th predetermined value T13 and the 7th predetermined value T35 specifically can set according to actual conditions, does not just carry out concrete restriction here.In condition one, condition two, condition three, the Cumulative Elapsed Time of compressor also specifically can limit according to actual conditions simultaneously.
When following arbitrary condition meets, control air-conditioner and enter the second self-circulating defrosting pattern, in the second self-circulating defrosting pattern, first valve port of the first commutation assembly is communicated with the 3rd valve port, and the 4th valve port is communicated with the second valve port, the first interface of the second commutation assembly and the second orifice, 4th interface of the 3rd commutation assembly and the 5th orifice, first controller is opened, and second controller is closed, and defrosts to the second outdoor heat exchanger:
Condition four, compressor is accumulative run t4 minute after, second temperature T2 is less than the first setting value T21, and the second temperature T2 and second sets difference BT2 sum is less than or equal to T20, and the 3rd temperature T3 > the 3rd setting value T331, wherein T20 be air conditioner heat-production run and compressor start continuous service after m1 minute to the minimum of a value of the T2 in m2 minute.
Condition five, compressor is accumulative run t5 minute after, the second temperature T2 is less than the 4th setting value T22, the 3rd temperature T3 > the 5th setting value T341, and continues m31 minute.
Condition six, compressor is accumulative run t6 minute after, the second temperature T2 is less than the 6th setting value T23, the 3rd temperature T3 > the 7th setting value T351.
When meeting above-mentioned condition four to any one condition in condition six between the environment temperature in the temperature, air-conditioner outdoor unit of the second outdoor heat exchanger and each preset temperature, air-conditioner just enters the second self-circulating defrosting pattern, to the second outdoor heat exchanger defrost.
Be understandable that, the concrete numerical value of the first setting value T21, the second setting difference BT2, the 3rd setting value T331, the 4th setting value T22, the 5th setting value T341, the 6th setting value T23 and the 7th setting value T351 specifically can set according to actual conditions, does not just carry out concrete restriction here.In condition four, condition five, condition six, the Cumulative Elapsed Time of compressor also specifically can limit according to actual conditions simultaneously.
When simultaneously meet enter the first self-circulating defrosting pattern and the second self-circulating defrosting pattern time, first enter the first self-circulating defrosting pattern, after enter the second self-circulating defrosting pattern again.But, be understandable that, if only have one to meet defrost condition among the first outdoor heat exchanger and the second outdoor heat exchanger, then enter the self-circulating defrosting pattern of that outdoor heat exchanger meeting defrost condition.
When air-conditioner runs the first self-circulating defrosting pattern or the second self-circulating defrosting pattern, when detect meet exit criteria time, exit defrost, that is, the air-conditioner running the first self-circulating defrosting pattern or the second self-circulating defrosting pattern detect meet exit the condition of defrost time, at once exit defrost pattern, switch to heating mode or refrigeration mode.
According to the control method of air-conditioner of the present utility model, in the defrost process of air-conditioner, indoor heat exchanger can be made to continue to indoor radiating, thus ensure that indoor set in defrost process continue heat, this improves the comfortableness of user when using air-condition device heat-production functions to a certain extent, pass through the temperature of detection first outdoor heat exchanger and the second outdoor heat exchanger simultaneously, and itself and predetermined value are compared to determine whether to defrost, can defrost according to actual conditions, air-conditioner is avoided to carry out defrosting in frostless situation and waste energy, ensure that the object realizing having frost defrosting.
Further, when the first self-circulating defrosting pattern, exit criteria is: detect T1 higher than the first set temperature value, detect that T1 continued for first scheduled time higher than the second set temperature value or detects time of defrosting to the first outdoor heat exchanger more than the first setting-up time, wherein the first set temperature value is greater than the second set temperature value.
When to the second outdoor heat exchanger defrosting, exit criteria is: detect T2 higher than the 3rd set temperature value, detect that T2 continued for second scheduled time higher than the 4th set temperature value or detects time of defrosting to the second outdoor heat exchanger more than the second setting-up time, wherein the 3rd set temperature value is greater than the 4th set temperature value.
When the first self-circulating defrosting pattern and the second self-circulating defrosting pattern meet respective exit criteria respectively, air-conditioner exits defrost pattern immediately, thus switches to heating mode or refrigeration mode, to continue to indoor heating or refrigeration.
Such as, when air-conditioner is in heating mode, compressor open record compressor start runs to the T1 minimum of a value T10 in 12 minutes after 7 minutes continuously, and T2 minimum of a value is T20.
As shown in Figure 5, if compressor start or the first outdoor heat exchanger defrost terminate rear timing and start, compressor added up operation after 29 minutes, decision condition one, if T1 < first predetermined value T11 (such as, T11=-7 DEG C), and T1+ first predetermined difference value BT1 (such as, BT1=2.5 DEG C)≤T10, and the 3rd temperature T3 > the 3rd predetermined value T33 (such as, T33=-22 DEG C), if satisfy condition one, check whether the second outdoor heat exchanger defrost flag is 0 simultaneously, if 0, air-conditioner just enters the first self-circulating defrosting pattern, to give the first outdoor heat exchanger defrost, now the defrost flag of the first outdoor heat exchanger is 1.If do not satisfy condition one, then continue decision condition two and condition three, if having one to meet in condition two and condition three, and the second outdoor heat exchanger defrost flag is 0, then air-conditioner enters the first self-circulating defrosting pattern.
After air-conditioner enters the first self-circulating defrosting pattern 1s, continue to detect T1, when T1 > first set temperature value being detected (such as, first set temperature value is 18 DEG C) time, exit the first self-circulating defrosting pattern, otherwise continue to detect, when T1 > second set temperature value being detected (such as, second set temperature value is 8 DEG C), and continue first scheduled time (such as first scheduled time is 30 seconds), or detect that time that air-conditioner defrosts to the first outdoor heat exchanger more than the first setting-up time (such as, first setting-up time is 3 minutes) time, air-conditioner exits the first self-circulating defrosting pattern, now the defrost flag of the first outdoor heat exchanger is 0.
As shown in Figure 6, if compressor start or the second outdoor heat exchanger defrost terminate rear timing and start, compressor added up operation after 29 minutes, decision condition four, if T2 < first setting value T21 (such as, T21=-7 DEG C), and T2+ second sets difference BT2 (such as, BT2=2.5 DEG C)≤T20, and the 3rd temperature T3 > the 3rd setting value T331 (such as, T331=-22 DEG C), if satisfy condition four, check whether the first outdoor heat exchanger defrost flag is 0 simultaneously, if 0, air-conditioner just enters the second self-circulating defrosting pattern, to give the second outdoor heat exchanger defrost, now the defrost flag of the second outdoor heat exchanger is 1, if do not satisfy condition four, then air-conditioner continues decision condition five and condition six, if have one to meet in condition five and condition six, and the first outdoor heat exchanger defrost flag is 0, then air-conditioner enters the second self-circulating defrosting pattern.
After air-conditioner enters the second self-circulating defrosting pattern 1s, continue to detect T2, when T2 > the 3rd set temperature value being detected (such as, 3rd set temperature value is 18 DEG C) time, exit the second self-circulating defrosting pattern, otherwise continue to detect, when T2 > the 4th set temperature value being detected (such as, 4th set temperature value is 8 DEG C), and continue second scheduled time (such as second scheduled time is 30 seconds), or detect that time that air-conditioner defrosts to the second outdoor heat exchanger more than the second setting-up time (such as, second setting-up time is 3 minutes) time, air-conditioner exits the second self-circulating defrosting pattern, now the defrost flag of the second outdoor heat exchanger is 0.
After air-conditioner exits defrost pattern, first controller is in closed condition, second controller is in opening, the first interface of the second commutation assembly and the second orifice, 5th interface of the 3rd commutation assembly and the 4th orifice, air-conditioner enters heating mode or refrigeration mode, exits defrost pattern and enter into heating mode certain hour (such as, 4 minutes) indoor auxiliary heating device closedown afterwards at air-conditioner.
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.
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 (8)
1. an air-conditioner, is characterized in that, comprising:
Compressor, described compressor has exhaust outlet and gas returning port;
First commutation assembly, described first commutation assembly has the first valve port to the 4th valve port, described first valve port is communicated with one of them in the 3rd valve port with the second valve port, described 4th valve port and described second valve port are communicated with another in described 3rd valve port, described first valve port is connected with described exhaust outlet, and described 4th valve port is connected with described gas returning port;
Second commutation assembly, described second commutation assembly has first interface to the 3rd interface, and described first interface is communicated with one of them in described 3rd interface with the second interface, and described first interface is connected with described second valve port;
Indoor heat exchanger, the first end of described indoor heat exchanger is connected with described 3rd valve port;
3rd commutation assembly, described 3rd commutation assembly has the 4th and is interfaced to the 6th interface, described 4th interface is communicated with one of them in described 6th interface with the 5th interface, is connected with the first throttle element and the first controller that are connected in parallel between described 4th interface and the second end of described indoor heat exchanger;
First outdoor heat exchanger and the second outdoor heat exchanger, the first end of described first outdoor heat exchanger is connected with described second interface, the first end of described second outdoor heat exchanger is connected with described 5th interface, is connected with the second section fluid element and second controller that are connected in parallel between the second end of described first outdoor heat exchanger and the second end of described second outdoor heat exchanger;
First refrigerant flow and the second refrigerant flow, one end of described first refrigerant flow is connected with described 3rd interface, the other end of described first refrigerant flow is connected between described second outdoor heat exchanger and described 5th interface, one end of described second refrigerant flow is connected with described 6th interface, and the other end of described second refrigerant flow is connected between described first outdoor heat exchanger and described second interface.
2. air-conditioner according to claim 1, is characterized in that, described second commutation assembly is two-bit triplet magnetic valve.
3. air-conditioner according to claim 1, is characterized in that, described 3rd commutation assembly is two-bit triplet magnetic valve.
4. air-conditioner according to claim 1, is characterized in that, described first commutation assembly is cross valve.
5. air-conditioner according to claim 1, is characterized in that, described first controller is configured to be in normally off.
6. air-conditioner according to claim 1, is characterized in that, described second controller is configured to be in normally open.
7. air-conditioner according to claim 1, is characterized in that, described first throttle element is capillary or electric expansion valve, and described second section fluid element is capillary or electric expansion valve.
8. air-conditioner according to claim 1, it is characterized in that, described first outdoor heat exchanger and described second outdoor heat exchanger are two independently heat exchange elements, or described first outdoor heat exchanger and described second outdoor heat exchanger are two parts of a heat exchange element.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269287.8U CN204630139U (en) | 2015-04-29 | 2015-04-29 | Air-conditioner |
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| CN201520269287.8U CN204630139U (en) | 2015-04-29 | 2015-04-29 | Air-conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896581A (en) * | 2015-04-29 | 2015-09-09 | 广东美的制冷设备有限公司 | Air conditioner and control method of air conditioner |
| CN106225296A (en) * | 2016-09-05 | 2016-12-14 | 南京理工大学 | A kind of commutation defrosting net for air-source heat pump units and commutation Defrost method |
| CN112696840A (en) * | 2020-12-18 | 2021-04-23 | 无锡同方人工环境有限公司 | All-weather wide-range bidirectional flow regulating device and regulating process thereof |
-
2015
- 2015-04-29 CN CN201520269287.8U patent/CN204630139U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896581A (en) * | 2015-04-29 | 2015-09-09 | 广东美的制冷设备有限公司 | Air conditioner and control method of air conditioner |
| CN104896581B (en) * | 2015-04-29 | 2018-02-02 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner |
| CN106225296A (en) * | 2016-09-05 | 2016-12-14 | 南京理工大学 | A kind of commutation defrosting net for air-source heat pump units and commutation Defrost method |
| CN106225296B (en) * | 2016-09-05 | 2019-01-18 | 南京理工大学 | A kind of commutation defrosting net for air-source heat pump units and the Defrost method that commutates |
| CN112696840A (en) * | 2020-12-18 | 2021-04-23 | 无锡同方人工环境有限公司 | All-weather wide-range bidirectional flow regulating device and regulating process thereof |
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