CN205717589U - Package AC plant - Google Patents

Abstract

The utility model discloses an integral air conditioner. The integral air conditioner includes: chassis, electric control box, compressor, throttling device, indoor and outdoor heat exchanger and cooling device. The heat dissipation device includes a first refrigerant flow path and a second refrigerant flow path connected in parallel between the outdoor heat exchanger and the throttling device, the heat dissipation device also includes a radiator and a flow control member, and the radiator is connected in series on the first refrigerant flow path, The flow control member is configured to control the flows of the first refrigerant flow path and the second refrigerant flow path. According to the integrated air conditioner of the utility model, the heat dissipation parts to be radiated can be effectively dissipated, and at the same time, when the temperature of the refrigerant flowing through the heat dissipation device is too low, the flow rate of the refrigerant flowing through the radiator can also be reduced. Since the refrigerant flowing into the radiator has not been throttled during the cooling operation, the refrigerant in the radiator is prevented from being overcooled, thereby avoiding condensation on the parts to be radiated, and improving the reliability of the system operation.

Description

Integral air conditioner

technical field

The utility model relates to the field of refrigeration and heating equipment, in particular to an integrated air conditioner.

Background technique

The electric control module of the frequency conversion machine has the problem of high heat generation. If the temperature is too high, it will have a great impact on the life of the electronic control components. At present, there are two main cooling technologies for the electric control box in the industry. One is air cooling, which is to use The wind field of the fan drives the electric control box to dissipate heat; the other is refrigerant cooling, that is, the refrigerant with a lower temperature in the system is introduced into the electric control box, and the cooling capacity of the refrigerant is used to dissipate heat from the electric control box. Among them, the first air-cooling method is noisy and has a lot of dust in the box, while the second refrigerant cooling method is likely to generate condensed water on the electric control box, resulting in component damage.

Utility model content

The utility model aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent. Therefore, an object of the present invention is to provide an integrated air conditioner, which can avoid the problem of condensation on the surface caused by the flow of low-temperature refrigerant through the parts to be dissipated.

The integrated air conditioner according to the embodiment of the present utility model includes: a chassis; an electric control box for controlling the operating state of the integrated air conditioner; a compressor, the compressor is arranged on the chassis; an indoor heat exchange The indoor heat exchanger is arranged on the chassis; the outdoor heat exchanger is arranged on the chassis; the throttling device is connected in series to the indoor heat exchanger Between the heat exchanger and the outdoor heat exchanger; the heat dissipation device, the heat dissipation device includes a first refrigerant flow path and a second refrigerant flow path connected in parallel between the outdoor heat exchanger and the throttling device, so The heat dissipation device further includes a radiator and a flow control element, the radiator is used to dissipate heat from the heat dissipation element, the radiator is connected in series on the first refrigerant flow path, and the flow control element is configured to control the flow rate of the first cooling medium. Flow rates of the refrigerant flow path and the second refrigerant flow path.

According to the integrated air conditioner of the embodiment of the utility model, by setting the first refrigerant flow path and the second refrigerant flow path in parallel in the heat dissipation device, the radiator is connected in series on the first refrigerant flow path, and the flow control member can control the flow through the cooling medium flow path. The refrigerant flow rate of the radiator can be effectively dissipated, and at the same time, when the temperature of the refrigerant flowing through the radiator is too low, the refrigerant flow rate of the radiator can also be reduced. Since the refrigerant flowing into the radiator has not been throttled during the cooling operation, the refrigerant in the radiator is prevented from being overcooled, thereby avoiding condensation on the parts to be radiated, and improving the reliability of the system operation.

In some embodiments, the chassis is provided with a condensed water collecting area for collecting condensed water on the indoor heat exchanger, and a part of the first refrigerant flow path is arranged in the condensed water collecting area. Thus, the heat dissipation effect of the radiator can be further improved.

Specifically, the flow control member includes a first flow control valve and a second flow control valve, the first flow control valve is connected in series on the first refrigerant flow path, and the second flow control valve is connected in series on the first flow path. Second refrigerant flow path. In this way, the two refrigerant flow paths are controlled separately, and the control is more convenient.

In some embodiments, the radiator is connected to the electric control box to dissipate heat from the electric control box. As a result, the characteristics of the all-in-one machine can be fully utilized to effectively dissipate heat from the electronic control components and avoid damage to the electronic control components due to overheating, thereby further improving the reliability of the system.

Specifically, the radiator is closely attached to the lower surface of the electric control box. Therefore, the contact area between the radiator and the electric control box is large, and the heat exchange efficiency is high. The radiator is placed under the electric control box to prevent the radiator from hindering the maintenance of the electric control box, and the position of the radiator is low, which is also convenient for arranging the first refrigerant flow path on the chassis.

In some embodiments, the chassis is provided with an inner air duct and an outer air duct spaced apart, the indoor heat exchanger is arranged in the inner air duct, and the outdoor heat exchanger is arranged in the outer air duct .

Specifically, the electric control box is connected between the inner air duct and the outer air duct, and the electric control box is spaced apart from the chassis.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic diagram of the internal structure of an integrated air conditioner according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of a refrigerant circulation system of an integrated air conditioner according to an embodiment of the present invention;

Fig. 3 is a logic control diagram of a flow control member according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of the control of the flow control member according to an embodiment of the present invention as the temperature of the electric control box changes.

Reference signs:

Integral air conditioner 100,

Compressor 1, exhaust port a, suction port b,

Electric control box 2, outdoor heat exchanger 3, indoor heat exchanger 4, throttling device 5,

heat sink 6, first refrigerant flow path 61, second refrigerant flow path 62, radiator 63, flow control member 64, first flow control valve 641, second flow control valve 642,

Chassis 7, inner air duct 8, outer air duct 9.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

The following describes an integrated air conditioner 100 according to an embodiment of the present invention with reference to FIGS. 1-2 .

The integrated air conditioner 100 according to the embodiment of the present utility model, as shown in Fig. 1 and Fig. 2, includes: a chassis 7, an electric control box 2 for controlling the operating state of the integrated air conditioner 100, a compressor 1, an indoor replacement Heater 4, outdoor heat exchanger 3, throttling device 5 and cooling device 6.

The compressor 1, the indoor heat exchanger 4, and the outdoor heat exchanger 3 are arranged on the chassis 7, and the compressor 1 has a suction port b and an exhaust port a. It should be noted that the structures and working principles of the compressor, the electric control box 2, the outdoor heat exchanger 3 and the indoor heat exchanger 4 are all prior art, and will not be described in detail here.

In the integral air conditioner 100, an inner air duct 8 and an outer air duct 9 are arranged on the chassis 7, the indoor heat exchanger 4 is arranged in the inner air duct 8, and the outdoor heat exchanger 3 is arranged in the outer air duct 9. The throttling device 5 is connected in series between the indoor heat exchanger 4 and the outdoor heat exchanger 3, and the throttling device 5, the compressor 1, the indoor heat exchanger 4 and the outdoor heat exchanger 3 constitute a refrigerant circulation system. Optionally, the throttling device 5 may be a capillary tube, an orifice plate, a mechanical expansion valve or an electronic expansion valve, etc., which are not specifically limited here.

Here, in terms of the function of the air conditioner, the integrated air conditioner 100 can be a heating and cooling machine, and the integrated air conditioner 100 can also be a single cooling machine. In terms of the use of the air conditioner, the integrated air conditioner 100 can be a window air conditioner, and the integrated air conditioner 100 can also be a mobile air conditioner or other types of integrated machines.

When the integrated air conditioner 100 is a heating and cooling machine, the integrated air conditioner 100 has a cooling mode and a heating mode. At this time, the integrated air conditioner 100 also includes a reversing assembly, the reversing assembly has an air suction interface, an exhaust interface, an internal machine interface, and an external machine interface, and the air suction interface is connected to one of the internal machine interface and the external machine interface. The exhaust interface is connected to the other of the interface of the internal machine and the interface of the external machine. Wherein, the suction port is connected with the suction port b of the compressor 1 , and the discharge port is connected with the discharge port a of the compressor 1 . When the integrated air conditioner 100 is in the cooling mode, the suction interface is connected to the interface of the internal unit, and the exhaust interface is connected to the interface of the external unit. When the integrated air conditioner 100 is in the heating mode, the suction port is connected to the external unit port and the exhaust port is connected to the internal unit port. Preferably, the reversing component is a four-way valve. In the heating and cooling integrated air conditioner, the first end of the indoor heat exchanger 4 is connected to the interface of the internal unit, the first end of the outdoor heat exchanger 3 is connected to the interface of the external unit, and the throttling device 5 is connected to the indoor heat exchanger 4 Between the second end of the outdoor heat exchanger 3 and the second end.

When the integrated air conditioner 100 is a cold-only machine, as shown in FIG. 2 , the integrated air conditioner 100 has a cooling mode. In the cooling-only integral air conditioner, the first end of the indoor heat exchanger 4 is connected to the suction port b of the compressor 1, and the first end of the outdoor heat exchanger 3 is connected to the exhaust port a of the compressor 1. The flow device 5 is connected between the second end of the indoor heat exchanger 4 and the second end of the outdoor heat exchanger 3 .

In both heating and cooling integrated air conditioners and cooling-only integrated air conditioners, the cooling device 6 is connected in series between the second end of the indoor heat exchanger 4 and the second end of the outdoor heat exchanger 3 . Therefore, to simplify the description, the structure of the integrated air conditioner 100 will be described below by taking the cooling-only air conditioner shown in FIG. 2 as an example.

1 and 2, the cooling device 6 includes a first refrigerant flow path 61 and a second refrigerant flow path 62 connected in parallel between the outdoor heat exchanger 3 and the throttling device 5, and the cooling device 6 also includes a radiator 63 and The flow control part 64 and the radiator 63 are connected with the parts to be radiated in the integrated air conditioner 100. The radiator 63 is used to dissipate heat from the parts to be radiated. The radiator 63 is connected in series to the first refrigerant flow path 61. The flow control part 64 In order to control the flow rates of the first refrigerant flow path 61 and the second refrigerant flow path 62 .

That is to say, the cooling device 6 is connected in series between the indoor heat exchanger 4 and the outdoor heat exchanger 3 , and the refrigerant in the refrigerant circulation system can flow through the first refrigerant flow path 61 and the second refrigerant flow path 62 . The radiator 63 is connected in series with the first refrigerant flow path 61 , and the refrigerant flows through the radiator 63 to absorb the heat of the parts to be dissipated.

The setting of the first refrigerant flow path 61, the second refrigerant flow path 62, and the flow control member 64 can better distribute the refrigerant flow of the two flow paths, and can be adjusted according to the temperature of the parts to be radiated, the use time of the air conditioner or the season of use, etc. situation, make adjustments.

In the example shown in Figure 2, when the high-temperature and high-pressure gaseous refrigerant is discharged from the compressor 1 and flows into the outdoor heat exchanger 3, the refrigerant releases heat and condenses in the outdoor heat exchanger 3 to form a low-temperature and medium-pressure liquid refrigerant, and then the refrigerant is discharged into the heat exchanger device 6. The refrigerant flowing into the first refrigerant flow path 61 absorbs heat and evaporates when flowing through the radiator 63, and then the refrigerant in the two flow paths merges and flows to the throttling device 5 to throttle and lower the pressure. The evaporation of the heat exchanger 4 absorbs heat to lower the indoor temperature, and finally the refrigerant in the indoor heat exchanger 4 flows back to the compressor 1, and this process is continuously repeated.

In the example of FIG. 2 , when it is necessary to dissipate heat from the parts to be dissipated in summer, the flow rate of the first refrigerant flow path 61 can be increased to increase the heat absorption of the parts to be dissipated. When winter comes, it is not necessary to dissipate heat from the heat sink, and at this time, the flow rate of the first refrigerant flow path 61 can be reduced to reduce the heat absorption of the heat sink.

Here, the radiator 63 can dissipate heat from components with relatively high heat generation in the integrated air conditioner 100 , and the type of the components to be dissipated is not specifically limited.

It should be noted that in hot summer weather, the heat of the heat-generating components is not easy to dissipate, so the setting of the radiator 63 is mainly to play a role in heat dissipation when the weather is hot, so the air conditioner usually needs to be turned up when cooling. A flow rate of the refrigerant channel 61 .

In some materials disclosed in the related art, the radiator heat exchanger is usually connected in series or in parallel on the throttling pipeline. Taking the single cooler as an example, the related technology material usually connects the radiator heat exchanger in series between the throttling device and the indoor heat exchanger. between heaters. However, the temperature of the refrigerant after throttling is too low, and it is easy to form condensed water on the parts to be dissipated. When the radiator is used to dissipate heat from the electric control box, the electric control box is easy to get wet and cause the failure of the electronic control module, which affects the service life of the electric control. Also therefore, related technology is not widely used.

However, in this patent application, the radiator 63 is equivalent to being connected in series on the refrigerant pipeline before throttling, so that the temperature of the refrigerant discharged from the outdoor heat exchanger 3 during cooling operation will not be too low, so as to avoid generating condensation. That is to say, in a refrigeration cycle, the refrigerant first flows through the radiator 6 and then through the throttling device 5 , and then flows to the indoor heat exchanger 4 . Since the throttling device 5 has the function of cooling, the refrigerant absorbs heat in the cooling device 6 and then releases heat by the throttling device 5, which can ensure that the temperature of the refrigerant flowing into the indoor heat exchanger 4 is relatively low, thereby improving energy efficiency.

According to the integrated air conditioner 100 of the embodiment of the present utility model, by setting the parallel first refrigerant flow path 61 and the second refrigerant flow path 62 in the heat dissipation device 6, the radiator 63 is connected in series on the first refrigerant flow path 61, and the flow rate The control unit 64 can control the flow of refrigerant flowing through the radiator 63, so as to effectively dissipate heat from the heat sink. At the same time, when the temperature of the refrigerant flowing through the heat sink 6 is too low, the flow of refrigerant flowing through the radiator 63 can also be reduced. Since the refrigerant flowing into the radiator 63 has not been throttled during the cooling operation, the refrigerant in the radiator 63 is prevented from being overcooled, thereby avoiding condensation on the parts to be radiated and improving the reliability of the system operation.

In the embodiment of the present utility model, the inner air duct 8 and the outer air duct 9 of the integrated air conditioner 100 are spaced apart, the inner air duct 8 can be connected with the room to absorb heat and cool the room, and the outer air duct 9 can be connected to the outdoor environment. connected to vent heat to the outside.

In some embodiments, the electric control box 2 is connected between the inner air duct 8 and the outer air duct 9, which can facilitate the circuit connection of internal and external components. At the same time, the compressor 1 is also arranged between the inner air duct 8 and the outer air duct 9, and these large-volume components are arranged between the inner air duct 8 and the outer air duct 9, which is beneficial to separate the inner and outer air ducts and improve the heat exchange efficiency of the air conditioner .

In some embodiments, the radiator 63 is connected to the electric control box 2 to dissipate heat from the electric control box 2. In this way, the characteristics of the all-in-one machine can be fully utilized to effectively dissipate heat from the electronic control components, and avoid excessive temperature of the electronic control components from causing damage, thereby further improving the reliability of the system.

In a specific example, the integral air conditioner 100 is a window-type cold-only inverter air conditioner, and the electric control box 2 of the integral air conditioner 100 generates a relatively large amount of heat, especially in high-temperature environments. Spread out, so the electric control box 2 is connected to the radiator 63, and the electric control box 2 can be controlled to dissipate heat, so as to ensure a good heat dissipation effect of the electronic control module of the window-type cooling-only inverter air conditioner.

Specifically, the electric control box 2 is arranged above the chassis 7 at intervals, so that the surroundings of the electric control box 2 are ventilated, and the heat dissipation of the electric control box 2 can be enhanced by air circulation.

More specifically, the radiator 63 is closely attached to the lower surface of the electric control box 2, so that the contact area between the radiator 63 and the electric control box 2 is large, and the heat exchange efficiency is high. The radiator 63 is arranged below the electric control box 2 to prevent the radiator 63 from hindering the maintenance of the electric control box 2 , and the position of the radiator 63 is relatively low, which facilitates the arrangement of the first refrigerant flow path 61 on the chassis 7 .

In a specific embodiment of the present utility model, the radiator 63 can adopt various structures of miniature heat exchangers disclosed in the prior art, which are not limited here. Preferably, the radiator 63 is configured as a radiator coil, so that the structure of the radiator 63 is simple.

In some embodiments, the bottom pan 7 is provided with a condensed water collecting area for collecting the condensed water on the indoor heat exchanger 4 , and at least a part of the first refrigerant flow path 61 is disposed in the condensed water collecting area.

Compared with the scheme of directly connecting the radiator heat exchanger in series between the outlet of the condenser and the throttling element, the refrigerant before throttling flows through the radiator 63, which has a good cooling effect during cooling and does not generate condensed water, but Because the temperature of the refrigerant coming out of the condenser is relatively high, the cooling effect is not ideal.

And the refrigerant before throttling flows through the radiator 63 after passing through the condensed water collection area, and the heat dissipation effect of the radiator 63 can be further improved by using the condensed water to absorb heat, and the temperature of the refrigerant will not be too low to cause heat dissipation on the parts to be radiated. produce condensation.

Specifically, when the air conditioning system is in cooling operation, condensed water will be generated on the indoor heat exchanger 4 . Along with the increase of the condensed water, the condensed water slowly flows to the outer air duct 9 along the chassis 7 . The first refrigerant flow path 61 passes through the condensed water collection area on the chassis 7, and the refrigerant in the first refrigerant flow path 61 exchanges heat with the condensed water at a lower temperature, so that the temperature of the refrigerant in the first refrigerant flow path 61 is further reduced , even lower than the temperature of the refrigerant at the second end of the outdoor heat exchanger 4 by more than 5°C. The heat sink 63 is connected in series with the first refrigerant flow path 61, because the temperature of the refrigerant is further lowered, better heat dissipation can be performed on the heat sink.

Optionally, a condensed water collection tank is provided on the chassis 7, and the condensed water collection tank is located between the inner air duct 8 and the outer air duct 9, and a part of the first refrigerant flow path 61 is arranged in the condensed water collection tank.

In some embodiments of the present invention, as shown in Figure 1 and Figure 2, the flow control member 64 includes a first flow control valve 641 and a second flow control valve 642, the first flow control valve 641 is connected in series to the first refrigerant In the flow path 61 , the second flow rate control valve 642 is connected in series to the second refrigerant flow path 62 . In this way, the two refrigerant flow paths are controlled separately, and the control is more convenient.

Of course, the structure of the flow control member 64 in the embodiment of the utility model is not limited thereto. For example, the flow control member 64 can also be a three-way solenoid valve, and the three-way solenoid valve is arranged at the refrigerant inlet and outlet of the cooling device 6, and the three-way solenoid valve The two valve ports of the valve are respectively connected with the first refrigerant flow path 61 and the second refrigerant flow path 62, and the third valve port of the three-way solenoid valve is connected with the main pipeline of the refrigerant circulation system. The three-way solenoid valve can simultaneously control flow The refrigerant flow rate through the first refrigerant flow path 61 and the second refrigerant flow path 62 . Alternatively, the flow control member 64 can also be disposed in the radiator 63 to control the flow of the refrigerant flowing through the radiator 63 .

In a specific example, as shown in FIG. 2 , the first refrigerant flow path 61 and the second refrigerant flow path 62 are connected in parallel, and first flow control valves are provided on the first refrigerant flow path 61 and the second refrigerant flow path 62 respectively. 641 and the second flow control valve 642. One end of the first refrigerant flow path 61 and the second refrigerant flow path 62 are connected to the second end of the outdoor heat exchanger 3 , and the other end is connected to the throttling device 5 . The radiator 63 of the electric control box 2 is connected in series on the first refrigerant flow path 61 , is located under the electric control box 2 , and is closely connected with it. The electric control box 2 is located between the inner air duct 8 and the outer air duct 9, while the outdoor heat exchanger 3, the indoor heat exchanger 4, and the compressor 1 are all located on the chassis 7, and the outdoor heat exchanger 3 and the indoor heat exchanger 4 are wrapped by the outer air duct 9 and the inner air duct 8 respectively.

The air conditioning system fully utilizes the structural features of the integral air conditioner 100 , and the first refrigerant flow path 61 flows through the chassis 7 and fully exchanges heat with the condensed water. At the same time, flow control valves are provided on the two flow paths to distribute the refrigerant flow of the two flow paths, so as to achieve a better heat dissipation effect of the electronic control module.

The control method of the integrated air conditioner is described below with reference to FIGS. 1-4 , and the air conditioner to which this method is adapted is the integrated air conditioner 100 according to the above-mentioned embodiments of the present utility model.

The control method of the integrated air conditioner includes the following steps: after the integrated air conditioner 100 is turned on, the temperature t of the parts to be radiated is detected; the flow control part 64 adjusts the first refrigerant flow path 61 and the The flow rate of the second refrigerant flow path 62 .

Therefore, according to the control method of the integrated air conditioner in the embodiment of the present utility model, the temperature of the parts to be radiated can be generally controlled within a set range, and the reliability of the operation of the integrated air conditioner is improved.

In some embodiments, after the integral air conditioner 100 is turned on, the temperature t of the component to be radiated is detected every set time.

Specifically, when the detected temperature t of the component to be dissipated is less than or equal to the first set value T1, the flow control member 64 reduces the flow rate of the first refrigerant flow path 61 and increases the flow rate of the second refrigerant flow path 62;

When the detected temperature t of the component to be dissipated is greater than or equal to the second set value T2, the flow control member 64 reduces the flow rate of the second refrigerant flow path 62 and increases the flow rate of the first refrigerant flow path 61;

When the detected temperature t of the component to be dissipated satisfies T1<t<T2, the flow rate of the first refrigerant flow path 61 and the flow rate of the second refrigerant flow path 62 remain unchanged.

In this way, the temperature of the parts to be dissipated can be generally controlled within the range of (T1, T2), and the control is very accurate.

In some specific embodiments, as shown in FIG. 2 , the flow control member 64 includes a first flow control valve 641 and a second flow control valve 642 , and the first flow control valve 641 is connected in series to the first refrigerant flow path 61 , The second flow control valve 642 is connected in series to the second refrigerant flow path 62 .

After the air conditioner is turned on, as shown in Figure 4, if the detected temperature t of the component to be radiated is less than or equal to the first set value T1, the opening of the first flow control valve 641 is adjusted to O1, and the opening of the second flow control valve 642 Adjust the degree to O3;

If the detected temperature t of the component to be dissipated is greater than or equal to the second set value T2, the opening of the first flow control valve 641 is adjusted to O3, and the opening of the second flow control valve 642 is adjusted to O1;

If the detected temperature t of the component to be cooled satisfies T1<t<T2, the openings of the first flow control valve 641 and the second flow control valve 642 are respectively adjusted to O2, wherein O1<O2<O3.

In this way, each flow control valve only needs to be set with three opening gears, the structure is relatively simple, and the control process is also simple.

Taking a specific embodiment shown in Fig. 3 and Fig. 4 as an example, step 1 of the control process of the integrated air conditioner 100: start-up operation, this step refers to conventional cooling operation.

When the air conditioner is turned on, the opening degrees of the first flow control valve 641 and the second flow control valve 642 are both O2.

After the air conditioner starts counting when it is turned on, and when the running time reaches m1, proceed to step 2: detect the temperature t of the electronic control module.

After that, proceed to step 3: determine the range interval where the detected temperature t of the electronic control module is located, and then select different openings for the first flow control valve 641 and the second flow control valve 642 according to the range interval where the temperature t of the electronic control module is located. Spend.

After the opening of the first flow control valve 641 and the second flow control valve 642 are adjusted, proceed to step 4: the air conditioner controls the adjusted opening to run, and restarts the counting after the adjustment, and returns when the operating time reaches m2 Go to step 2, that is, check and adjust again after the running time after adjustment reaches m2, and repeat the cycle according to this process until the air conditioner is turned off.

In the above embodiment, when the detected temperature t≤T1 of the electronic control module, the opening degrees of the first flow control valve 641 and the second flow control valve 642 are adjusted to O1 and O3 respectively; when T1<T<T2, the first The openings of the flow control valve 641 and the second flow control valve 642 are adjusted to O2 respectively; when T≥T2, the openings of the first flow control valve 641 and the second flow control valve 642 are adjusted to O3 and O1 respectively; wherein, O3 >O2>O1, T2>T1.

For different temperature ranges, the flow control valve chooses different openings, one is to better dissipate heat from the electronic control module and avoid overcooling or overheating; the other is to consider the stable operation of the refrigeration system.

The control method of the air conditioner according to the embodiment of the utility model is controlled by the flow control valve, and the opening degree of the flow control valve is adjusted according to the temperature of the electric control module detected in the electric control box 2 . When the detected temperature is in different temperature ranges, the flow control valve adopts different opening degrees, and through this control, the effect of distributing the refrigerant flow is achieved.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "top", "bottom", "inner" and "outer" are based on The orientation or positional relationship shown in the accompanying drawings is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood To limit the utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, unless otherwise clearly stipulated and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be A mechanical connection can also be an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two components or an interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this specification, descriptions with reference to the terms "embodiment", "example" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention middle. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (7)

1. a package AC plant, it is characterised in that including:

Chassis；

For controlling the electric-controlled box of the running status of described package AC plant；

Compressor, described compressor is located on described chassis；

Indoor heat exchanger, described indoor heat exchanger is located on described chassis；

Outdoor heat exchanger, described outdoor heat exchanger is located on described chassis；

Throttling arrangement, described throttling arrangement is connected in series between described indoor heat exchanger and described outdoor heat exchanger；

Heat abstractor, described heat abstractor includes be connected in parallel between described outdoor heat exchanger and described throttling arrangement first Refrigerant flow and the second refrigerant flow, described heat abstractor also includes radiator and flow control member, and described radiator is for right Treating that radiating piece dispels the heat, described radiator tandem is on described first refrigerant flow, and described flow control member is configured to controlled Make described first refrigerant flow and the flow of described second refrigerant flow.

Package AC plant the most according to claim 1, it is characterised in that described chassis is provided with for collecting described room The condensed water pooling zone of the condensed water on interior heat exchanger, a part for described first refrigerant flow is located at described condensed water pooling zone In.

Package AC plant the most according to claim 1, it is characterised in that described flow control member includes first flow control Valve processed and second flow control valve, described first flow control valve is connected on described first refrigerant flow, described second flow Control valve is connected on described second refrigerant flow.

Package AC plant the most according to claim 1, it is characterised in that described radiator be connected with described electric-controlled box with Described electric-controlled box is dispelled the heat.

Package AC plant the most according to claim 4, it is characterised in that described radiator is close to described electric-controlled box On lower surface.

6. according to the package AC plant according to any one of claim 1-5, it is characterised in that described chassis is provided with interval The interior air channel opened and outer air duct, described indoor heat exchanger is located in described interior air channel, and described outdoor heat exchanger is located at described exogenous wind In road.

Package AC plant the most according to claim 6, it is characterised in that described electric-controlled box be connected to described interior air channel and Between outer air duct, and described electric-controlled box is spaced apart with described chassis.