CN110307600A - Air Conditioning System and Air Conditioner - Google Patents

Abstract

The invention provides an air conditioning system and an air conditioner. The air conditioning system includes an electric control element heat exchanger, a throttling component and a bridge valve group. The throttling part is connected in series between the first connection port and the third connection port, the electric control element heat exchanger is connected in series between the throttling part and the first connection port, and one of the second connection port and the fourth connection port is connected to the outdoor The second end of the heat exchanger is connected, the other of the second connection port and the fourth connection port is connected with the second end of the indoor heat exchanger, and the bridge valve group is used to control the flow of refrigerant through the electric control element heat exchanger Flow throttling parts. The air conditioning system provided by the present invention utilizes the heat exchanger of the electric control element to dissipate heat from the electric control element, which has a good heat dissipation effect and prevents the temperature of the refrigerant from flowing through the throttling part from falling below the ambient dew point temperature, resulting in condensed water on the surface of the electric control element .

Description

Air Conditioning System and Air Conditioner

technical field

The present invention relates to the field of refrigeration equipment, more specifically, to an air conditioning system and an air conditioner including the air conditioning system.

Background technique

Existing air-conditioning systems mostly use air-cooled modules to dissipate heat for the electronic control components of the outdoor unit. When the ambient temperature of the outdoor unit is high and the heat dissipation efficiency of the air-cooled module is low, the heat generated by the electronic control components cannot be effectively dissipated, affecting the air-conditioning system. performance, threatening the reliability of the air conditioning system. Specifically, when the ambient temperature of the outdoor unit is high, the temperature of the air flowing through the air-cooling module is high, resulting in poor heat dissipation effect of the air-cooling module on the electrical control components of the outdoor unit, and the high temperature of the electronic control components affects the performance of the overall air conditioning system and reliability.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art.

Therefore, an object of one aspect of the present invention is to provide an air conditioning system.

Another aspect of the present invention aims to provide an air conditioner including the above air conditioning system.

To achieve the above object, the technical solution of one aspect of the present invention provides an air conditioning system, including: a compressor with an exhaust port and an air intake; a reversing member with a first port to a fourth port, the first One of the first port and the third port communicates with the second port, the other of the first port and the third port communicates with the fourth port, and the first port communicates with the exhaust port The third port is connected to the air inlet; the indoor heat exchanger and the outdoor heat exchanger, one of the second port and the fourth port is connected to the first port of the indoor heat exchanger The other end of the second port and the fourth port is connected to the first end of the outdoor heat exchanger; the electric control element heat exchanger, the throttling part and the bridge valve group, the bridge The shaped valve group includes a plurality of valves and has a first connection port to a fourth connection port, one of the first connection port and the third connection port communicates with the second connection port, and the first connection port and the The other of the third connection port communicates with the fourth connection port; the throttling component is connected in series between the first connection port and the third connection port, and the electric control element heat exchanger is connected in series Between the throttling component and the first connection port, one of the second connection port and the fourth connection port is connected to the second end of the outdoor heat exchanger, and the second connection port and the fourth connection port are connected to the second end of the outdoor heat exchanger. The other of the fourth connection ports is connected to the second end of the indoor heat exchanger, and the bridge valve group is used to control the refrigerant to flow through the electric control element heat exchanger and then flow through the throttling part.

In the air conditioning system provided by the technical solution of the present invention, the electric control element heat exchanger and the throttling component are arranged between the second end of the indoor heat exchanger and the outdoor heat exchanger. After the discharged refrigerant flows through the outdoor heat exchanger, it flows through the electric control element heat exchanger and throttling parts, and then flows to the indoor heat exchanger. In the heating mode, the refrigerant discharged from the exhaust port of the compressor flows through the indoor heat exchanger, and then flows through the electric control element heat exchanger and throttling parts under the action of the bridge valve group, and then flows to the outdoor. Heat Exchanger.

The electric control element heat exchanger and throttling parts are connected between the second end of the indoor heat exchanger and the second end of the outdoor heat exchanger, and through the regulation of the bridge valve group, in cooling mode and heating mode , the refrigerant first flows through the heat exchanger of the electric control element and then flows through the throttling part. The heat exchanger of the electric control element is used to dissipate heat from the electric control element. The heat dissipation effect is good, which can effectively ensure the normal operation of the electric control element at high temperature. At the same time, the refrigerant first flows through the heat exchanger of the electronic control element and then flows through the throttling part, so that the temperature of the refrigerant in the heat exchanger of the electric control element is suitable, and prevents the temperature of the refrigerant from flowing through the throttling part from falling below the ambient dew point temperature, so that The temperature of the refrigerant is too low, resulting in condensed water on the surface of the electronic control components, which ensures the service life and safety of the electronic control components. Moreover, since the refrigerant all flows through the heat exchanger of the electric control element first and then flows through the throttling part, the refrigerant in the heat exchanger of the electric control element has a high cooling capacity density, and the heat dissipation effect on the electric control element is better.

The bridge-shaped valve group is used to control the direction of the refrigerant, so that in both heating and cooling modes, the refrigerant first passes through the heat exchanger of the electronic control element and then passes through the throttling part. The number of the bridge-shaped valve group can be one, and the structure of the bridge-shaped valve group is simple and the cost is low.

In addition, the air conditioning system provided by the above technical solution of the present invention also has the following additional technical features:

In one embodiment, the bridge-shaped valve group includes four sequentially connected valve groups, namely the first valve group to the fourth valve group, each of which includes at least one valve, and two adjacent valve groups A connection port is provided between the valve groups, which are respectively the first connection port to the fourth connection port, wherein the first connection port is located between the first valve group and the fourth valve group , the second connection port is located between the first valve group and the second valve group, the third connection port is located between the second valve group and the third valve group, and the first The four-connection port is located between the third valve group and the fourth valve group.

The structure of the bridge-shaped valve group is simple, and it is easy to implement while controlling the refrigerant to flow through the heat exchanger of the electric control element first and then through the throttling component in both cooling and heating modes.

In one embodiment, the valve includes a one-way stop valve.

The one-way stop valve has the advantages of low cost and simple process while realizing the function of the bridge valve group.

In one of the embodiments, the one-way shut-off valves in the bridge valve group are set in the same direction, and the one-way shut-off valve in the first valve group is connected along the direction from the second connection port to the first connection port. One-way conduction in the direction of the port, the one-way stop valve in the second valve group is one-way conduction in the direction from the third connection port to the second connection port, the one-way stop valve in the third valve group The cut-off valve is unidirectionally conducted along the direction from the third connection port to the fourth connection port, and the one-way stop valve in the fourth valve group is connected along the direction from the fourth connection port to the first connection port. The direction of the unidirectional conduction.

Further, for the case where all the valves in the bridge valve group are one-way valves, the bridge valve group includes at least four one-way stop valves, and the at least four one-way stop valves are arranged in the same direction to facilitate the one-way stop valve. Assembly between valves.

Optionally, the number of one-way shut-off valves in each valve group is one, and the number of one-way shut-off valves in the bridge valve group is four, and the four one-way shut-off valves are arranged in the same direction. While being able to realize the control function of the refrigerant flow direction, it facilitates the assembly of four one-way stop valves, avoiding the cumbersome assembly process and prone to mistakes caused by the four one-way stop valves not being completely in the same direction.

In one embodiment, the valve includes a solenoid valve or an electronic expansion valve.

The valve adopts solenoid valve or electronic expansion valve, which can effectively improve the intelligence level of the air conditioning system.

In one embodiment, the number of the throttling component is one.

There is only one throttling part, which simplifies the structure of the system while ensuring the function of the air conditioning system, making the system more concise, the process more concise, and the control simple.

In one embodiment, the throttling component includes a capillary tube, a one-way throttle valve, a two-way throttle valve or a thermal expansion valve.

Capillary tubes, one-way throttle valves, two-way throttle valves or thermal expansion valves are mature and reliable, and used as throttling components can effectively ensure the reliability of air conditioning system operation.

In one embodiment, the throttling component includes an electronic expansion valve.

The electronic expansion valve uses the electrical signal generated by the adjusted parameters to control the voltage or current applied to the expansion valve, and then achieves the purpose of adjusting the liquid supply, which can control the flow of refrigerant entering the refrigeration device according to the preset program. , which can improve the intelligence of the air conditioning system.

In one embodiment, the air-conditioning system includes: a controller connected to the throttling component, and configured to control the liquid supply volume of the throttling component according to the working condition parameters of the air conditioner.

The controller acquires working condition parameters and controls the liquid supply volume of the throttling component according to the working condition parameters, so that the air conditioning system can better adapt to environmental changes. Working condition parameters can be discharge temperature, frequency, indoor unit inlet air temperature, indoor unit heat exchanger coil temperature, outdoor unit inlet air temperature, outdoor unit coil temperature, compressor discharge pressure, compressor return air pressure, etc. Parameters, the controller can adjust the liquid supply volume of the component according to one parameter and multiple parameters. For example, the controller controls the opening of the electronic expansion valve according to one or more parameters above, so as to adjust the liquid supply volume.

In one embodiment, the electric control element heat exchanger includes a fixing plate and a heat exchange tube, and the fixing plate is provided with a groove for accommodating the heat exchange tube.

The heat exchange tubes are fixed on the fixed plate, and the refrigerant circulates in the heat exchange tubes. The fixed plate exchanges heat with the refrigerant, and then the fixed plate exchanges heat with the electric control element to dissipate heat for the electric control element. The electric control components include the circuit board of the outdoor unit and the components arranged on the circuit board.

In one of the embodiments, the fixed plate includes a first fixed plate and a second fixed plate oppositely arranged, a first groove is provided on a side of the first fixed plate facing the second fixed plate, and the first fixed plate A second groove is provided on the side facing the first fixing plate on the two fixing plates, the first groove and the second groove are combined to form the groove, and the groove and the replacement Compatible with heat pipes.

The first fixed plate and the second fixed plate are combined to form a fixed plate, and the first groove and the second groove are combined to form a groove. When the electric control element heat exchanger is assembled, the heat exchange tube can be put into the first groove Inside, place the second fixing plate on the first fixing plate so that the heat exchange tubes are located in the second groove.

Further, the shape and size of the first groove and the second groove are the same, and are the same as those of the heat exchange tube.

The first fixing plate and the second fixing plate are fixedly connected, and the two can be connected, welded, bonded or clamped by fasteners such as screws.

In one embodiment, the heat exchange tube includes a first end, a second end, and a bent portion between the first end and the second end, and the first end and the second end are The junction between at least one of the second end portions and the bent portion has an angle, so as to increase the heat exchange area between the heat exchange tube and the fixing plate.

In order to enhance the heat exchange efficiency between the heat exchange tube and the fixed plate, the heat exchange tube is U-shaped, snake-shaped or S-shaped. Further, the shape and size of the groove are respectively adapted to the shape and size of the heat exchange tube.

In one embodiment, the reversing member includes a four-way valve or a bridge valve assembly, and the bridge valve assembly includes four sequentially connected valve assemblies, each of which includes at least one valve, and two adjacent valve assemblies A port is provided between the two valve assemblies, which are respectively the first port, the second port, the third port and the fourth port.

The technical solution of the second aspect of the present invention provides an air conditioner, including the air conditioning system according to any one of the technical solutions of the first aspect.

The air conditioner provided by the technical solution of the second aspect of the present invention includes the air conditioning system described in any one of the technical solutions of the first aspect, and thus has the air conditioner described in any one of the technical solutions of the first aspect All beneficial effects of the system will not be repeated here.

Additional aspects and advantages of the invention will become apparent in the description which follows, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a bridge valve group described in an embodiment of the present invention;

Fig. 2 is a schematic structural view of an air conditioning system according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of the refrigerant flow path in the cooling mode of the air conditioning system shown in Fig. 2, where the direction of the arrow indicates the flow direction of the refrigerant;

Fig. 4 is a schematic diagram of the refrigerant flow path in the heating mode of the air conditioning system shown in Fig. 2, where the direction of the arrow indicates the flow direction of the refrigerant;

Fig. 5 is a schematic diagram of an exploded structure of the electric control element heat exchanger according to an embodiment of the present invention.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 5 is:

1 compressor, 11 exhaust port, 12 air intake port, 2 reversing member, 21 first port, 22 second port, 23 third port, 24 fourth port, 3 indoor heat exchanger, 4 outdoor heat exchanger , 5 outdoor unit motor and fan, 51 first port, 52 second port, 53 third port, 6 bridge valve group, 61 first port, 62 second port, 63 third port, 64 Four connection ports, 65 first one-way stop valve, 66 second one-way stop valve, 67 third one-way stop valve, 68 fourth one-way stop valve, 7 throttling parts, 8 indoor unit motor and fan, 9 Electric control element heat exchanger, 91 fixed plate, 911 first fixed plate, 912 second fixed plate, 913 second groove, 92 heat exchange tube, 921 first end, 922 second end, 923 bending part .

Detailed ways

In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.

An air conditioning system and an air conditioner according to some embodiments of the present invention will be described below with reference to FIGS. 1 to 5 .

As shown in FIG. 1 , an air conditioning system provided according to some embodiments of the present invention includes: a compressor 1 having an exhaust port 11 and an air intake port 12; a reversing element 2 having a first port 21 to a fourth port 24, one of the first port 21 and the third port 23 communicates with the second port 22, and the other of the first port 21 and the third port 23 communicates with the fourth port 24, that is, the reversing element 2 There are two conduction states, one conduction state is the conduction between the first port 21 and the second port 22, the third port 23 and the fourth port 24 are in conduction, and the other conduction state is the conduction between the first port 21 and the second port The four ports 24 are connected, and the third port 23 is connected to the second port 22 . The first port 21 is connected to the exhaust port 11 , and the third port 23 is connected to the intake port 12 .

One of the second port 22 and the fourth port 24 is connected to the first end of the indoor heat exchanger 3 , and the other of the second port 22 and the fourth port 24 is connected to the first end of the outdoor heat exchanger 4 . The indoor unit also includes an indoor unit motor and fan blades 8, and the outdoor unit also includes an outdoor unit motor and fan blades 5.

As shown in Figure 1, the bridge-shaped valve group 6 includes a plurality of valve groups, specifically, the bridge-shaped valve group 6 includes four sequentially connected valve groups, each valve group includes at least one valve, and the valve group connected between two valve groups One connection port is provided, which are respectively the first connection port 61 to the fourth connection port 64, one of the first connection port 61 and the third connection port 63 communicates with the second connection port 62, and the first connection port 61 and the second connection port The other of the three connection ports 63 communicates with the fourth connection port 64, that is to say, the bridge valve group 6 has two conduction states, one conduction state is that the first connection port 61 and the second connection port 62 conduct The third connection port 63 is connected to the fourth connection port 64. Another conduction state is that the first connection port 61 is connected to the fourth connection port 64, and the third connection port 63 is connected to the second connection port 62. .

The valve can be a one-way stop valve. As shown in Figure 1, each valve group includes a one-way stop valve, and the bridge valve group 6 includes four one-way stop valves, which are respectively the first one-way stop valve 65, The second one-way stop valve 66, the third one-way stop valve 67 and the fourth one-way stop valve 68, wherein the first valve group includes the first one-way stop valve 65, and the second valve group includes the second one-way stop valve 66 , the third valve group includes a third one-way stop valve 67 , and the fourth valve group includes a fourth one-way stop valve 68 . A one-way globe valve is a valve that flows in one direction and does not flow in the other direction. For the first one-way cut-off valve 65, when the pressure on the C side is greater than the pressure on the D side, the first one-way cut-off valve 65 communicates, otherwise it does not flow, that is, the first one-way shut-off valve 65 is along the line from the second connection port 62 to the first one-way stop valve. The direction of a connecting port 61 is unidirectional; for the second one-way stop valve 66, when the pressure on the side A is greater than the pressure on the side B, the second one-way stop valve 66 will flow, otherwise it will not flow, that is, the second one-way stop valve 66 It is one-way conduction along the direction from the third connection port 63 to the second connection port 62; for the third one-way stop valve 67, when the pressure on the E side is greater than the pressure on the F side, the third one-way stop valve 67 will communicate, otherwise it will not flow, that is, the third one-way cut-off valve 67 is one-way flow along the direction from the third connection port 63 to the fourth connection port 64; for the fourth one-way cut-off valve 68, when the G side pressure is greater than the H side pressure, the first The four one-way shut-off valves 68 communicate, otherwise they do not communicate, that is, the fourth one-way shut-off valve 68 is unidirectionally connected along the direction from the fourth connecting port 64 to the first connecting port 61 .

The throttling component 7 is connected in series between the first connecting port 61 and the third connecting port 63, the electric control element heat exchanger 9 is connected in series between the throttling component 7 and the first connecting port 61, the second connecting port 62 and the fourth connecting port One of the connection ports 64 is connected to the second end of the outdoor heat exchanger 4, the other of the second connection port 62 and the fourth connection port 64 is connected to the second end of the indoor heat exchanger 3, and the bridge valve group 6 is used to control the refrigerant to flow through the electric control element heat exchanger 9 and then flow through the throttling part 7, and the throttling part 7 has a throttling effect. As shown in FIG. 2 , the second connection port 62 is connected to the outdoor heat exchanger 4 , and the fourth connection port 64 is connected to the indoor heat exchanger 3 .

In the air conditioning system provided by the above-mentioned embodiments of the present invention, the electric control element heat exchanger 9 and the throttling component 7 are arranged between the second end of the indoor heat exchanger 3 and the outdoor heat exchanger 4, in cooling mode, as shown in Figure 3 As shown, the refrigerant discharged from the exhaust port 11 of the compressor 1 flows through the outdoor heat exchanger 4 , then flows through the electric control element heat exchanger 9 and the throttling component 7 , and then flows to the indoor heat exchanger 3 . In the heating mode, as shown in Figure 4, the refrigerant discharged from the exhaust port 11 of the compressor 1 flows through the indoor heat exchanger 3, and then flows through the electronic control element for heat exchange under the action of the bridge valve group 6. device 9 and throttling component 7, and then flows to the outdoor heat exchanger 4.

The electric control element heat exchanger 9 and the throttling component 7 are connected between the second end of the indoor heat exchanger 3 and the second end of the outdoor heat exchanger 4, and through the regulation of the bridge valve group 6, in the cooling mode And in the heating mode, the refrigerant flows through the electric control element heat exchanger 9 first and then flows through the throttling part 7, and the electric control element heat exchanger 9 is used to dissipate heat from the electric control element, the heat dissipation effect is good, and the power supply can be effectively guaranteed. The normal operation of the control element at high temperature, at the same time, the refrigerant flows through the heat exchanger 9 of the electric control element first and then flows through the throttling part 7, so that the temperature of the refrigerant in the heat exchanger 9 of the electric control element is suitable and prevents the refrigerant from flowing through the throttling After the temperature of the component 7 drops below the ambient dew point temperature, the temperature of the refrigerant is too low, resulting in condensed water on the surface of the electronic control component, which ensures the service life and safety of the electronic control component. Moreover, since the refrigerant first flows through the heat exchanger 9 of the electric control element and then flows through the throttling part 7, the cooling capacity density of the refrigerant in the heat exchanger 9 of the electric control element is high, and the cooling effect on the electric control element is better.

The bridge-shaped valve group 6 is simple in structure and low in cost, and only one bridge-shaped valve group 6 can effectively control the flow direction of the refrigerant between the electric control element heat exchanger 9 and the throttling component 7 in cooling and heating modes , so that the refrigerant first passes through the electric control element heat exchanger 9 and then passes through the throttling component 7 .

The bridge valve group 6 includes at least four one-way shut-off valves, and at least four one-way shut-off valves are arranged in the same direction to facilitate the assembly between the one-way shut-off valves.

Optionally, the number of one-way shut-off valves in each valve group is one, and the number of one-way shut-off valves in the bridge valve group 6 is four, and the four one-way shut-off valves are arranged in the same direction. At the same time, it facilitates the assembly of four one-way globe valves, avoiding the cumbersome assembly process and prone to mistakes caused by the four one-way globe valves not being completely in the same direction.

The valve can be a one-way stop valve, in addition, the valve can also be a solenoid valve or an electronic expansion valve.

In the drawings, the second port 22 is connected to the first end of the outdoor heat exchanger 4, the fourth port 24 is connected to the first end of the indoor heat exchanger 3, and the second connection port 62 is connected to the second end of the outdoor heat exchanger 4. The fourth connecting port 64 is connected to the second end of the indoor heat exchanger 3 . The flow path of the refrigerant in cooling and heating modes in this application will be described in detail below with reference to the accompanying drawings.

In cooling mode, as shown in Figure 3, the flow path of the refrigerant is: the refrigerant flowing out of the exhaust port 11 of the compressor 1 flows to the first port 21, and flows to the first end of the outdoor heat exchanger 4 through the second port 22 , flows out to the second connection port 62 through the second end of the outdoor heat exchanger 4, flows to the first connection port 61 through the first one-way stop valve 65, and flows through the electric control element heat exchanger 9 and the throttling component 7 to the third connection port 63 , flows through the third one-way stop valve 67 to the fourth connection port 64 , flows to the indoor heat exchanger 3 , and flows back to the air inlet 12 through the fourth port 24 and the third port 23 .

In the heating mode, as shown in FIG. 4 , the flow path of the refrigerant is: the refrigerant flowing out of the exhaust port 11 of the compressor 1 flows to the first port 21, and flows to the first port of the indoor heat exchanger 3 through the fourth port 24. end, flows out to the fourth connection port 64 through the second end of the indoor heat exchanger 3, flows to the first connection port 61 through the fourth one-way stop valve 68, and flows through the electric control element heat exchanger 9 and the throttling component 7 to the third connection port 63 , flows through the second one-way stop valve 66 to the second connection port 62 to the outdoor heat exchanger 4 , and flows back to the air inlet 12 through the second port 22 and the third port 23 .

By designing a bridge-shaped valve group between the outdoor heat exchanger and the indoor heat exchanger of the air-conditioning system, the air-conditioning system can take the refrigerant from the outlet of the outdoor heat exchanger (the second end) to cool down the electronic control element when cooling; When the air conditioning system is heating, the refrigerant at the outlet (second end) of the indoor heat exchanger is used to cool down the temperature of the electronic control element. The temperature of the obtained refrigerant is higher than the outdoor ambient temperature and lower than the temperature of the electronic control components, which provides effective and reliable heat dissipation for the electronic control components.

It should be noted that the connecting pipelines of the second port 22 and the fourth port 24 can be interchanged, that is, the second port 22 is connected with the first end of the indoor heat exchanger 3, and the fourth port 24 is connected with the end of the outdoor heat exchanger 4. The first end is connected, or the second port 22 is connected with the first end of the outdoor heat exchanger 4 , and the fourth port 24 is connected with the first end of the indoor heat exchanger 3 . After the exchange, the same technical effect can also be achieved by cooperating with corresponding controls.

It should be noted that the connecting pipelines of the second connection port 62 and the fourth connection port 64 can be interchanged, that is, the second connection port 62 is connected with the first end of the indoor heat exchanger 3, and the fourth connection port 64 is connected with the outdoor heat exchanger 3. The first end of the heat exchanger 4 is connected, or the second connection port 62 is connected with the first end of the outdoor heat exchanger 4 , and the fourth connection port 64 is connected with the first end of the indoor heat exchanger 3 . After the exchange, the same technical effect can also be achieved by cooperating with corresponding controls.

In the cooling and heating modes, the bridge valve group 6 and the reversing member 2 also need to be adjusted to the corresponding mode to ensure the flow path of the refrigerant.

In one embodiment, the number of the throttling component 7 is one.

There is only one throttling component 7, which simplifies the structure of the system while ensuring the function of the air conditioning system, making the system more concise, the process more concise, and the control simple. The system only needs one throttling component to realize the heat dissipation of the refrigerant of the cooling and heating machine.

In one embodiment, the throttling component 7 includes a capillary tube, a one-way throttle valve, a two-way throttle valve or a thermal expansion valve.

In one embodiment, the throttling component 7 includes an electronic expansion valve.

In one embodiment, the air conditioning system includes: a controller connected to the throttling component 7 for controlling the liquid supply amount of the throttling component 7 according to the operating condition parameters of the air conditioner.

The controller acquires working condition parameters and controls the liquid supply volume of the throttling component 7 according to the working condition parameters, so that the air conditioning system can better adapt to environmental changes. Working condition parameters can be discharge temperature, frequency, indoor unit inlet air temperature, indoor heat exchanger coil temperature, outdoor unit air inlet temperature, outdoor unit coil temperature, compressor 1 exhaust pressure, compressor 1 return air pressure and other parameters, the controller can adjust the liquid supply volume of the throttling part according to one parameter or multiple parameters. For example, the controller controls the opening of the electronic expansion valve according to one or more parameters above, so as to adjust the liquid supply volume.

In one embodiment, as shown in FIG. 5 , the electric control element heat exchanger 9 includes a fixing plate 91 and a heat exchange tube 92 , and the fixing plate 91 is provided with a groove for accommodating the heat exchange tube 92 .

The heat exchange tubes 92 are fixed on the fixing plate 91 , and the refrigerant flows through the heat exchange tubes 92 . The fixed plate 91 exchanges heat with the refrigerant, and the fixed plate 91 exchanges heat with the electronic control components to dissipate heat for the electronic control components. The electric control components include the circuit board of the outdoor unit and the components arranged on the circuit board.

In one of the embodiments, the fixed plate 91 includes a first fixed plate 911 and a second fixed plate 912 that are oppositely arranged. The first fixed plate 911 is provided with a first groove on the side facing the second fixed plate 912. The second fixed plate The side of the 912 facing the first fixing plate 911 is provided with a second groove 913 , the first groove and the second groove 913 are combined to form a groove, and the groove is adapted to the heat exchange tube 92 . As shown in FIG. 5 , a first groove is formed on the lower side of the first fixing plate 911 , and a second groove 913 is formed on the upper side of the second fixing plate 912 .

The first fixed plate 911 and the second fixed plate 912 are combined to form the fixed plate 91, and the first groove and the second groove 913 are combined to form the groove. When the electric control element heat exchanger 9 is assembled, the heat exchange tube 92 can be first Put it into the first groove, and then place the second fixing plate 912 on the first fixing plate 911 , and make the heat exchange tube 92 be located in the second groove 913 .

Further, the shape and size of the first groove and the second groove 913 are the same, and the shape and size of the heat exchange tube 92 are the same.

The first fixing plate 911 and the second fixing plate 912 are fixedly connected, and the two can be connected, welded, bonded or clamped by fasteners such as screws.

In one embodiment, the heat exchange tube 92 includes a first end portion 921, a second end portion 922 and a bent portion 923 between the first end portion 921 and the second end portion 922, the first end portion 921 and the second end portion 922 At least one of the end portions 922 and the bent portion 923 has a knuckle at the junction, so as to increase the heat exchange area between the heat exchange tube 92 and the fixing plate 91 .

In order to enhance the heat exchange efficiency between the heat exchange tube 92 and the fixing plate 91 , the heat exchange tube 92 is U-shaped, serpentine or S-shaped. Further, the shape and size of the groove are respectively adapted to the shape and size of the heat exchange tube 92 .

As for the form of the reversing element 2, in a specific embodiment, the reversing element 2 comprises a second four-way valve.

In another specific embodiment, the reversing element 2 includes a bridge-shaped valve assembly, and the bridge-shaped valve assembly includes four sequentially connected valve assemblies, each valve assembly includes at least one one-way stop valve, and two adjacent valve assemblies A port is provided between the components, namely a first port 21 , a second port 22 , a third port 23 and a fourth port 24 .

The embodiment of the second aspect of the present invention provides an air conditioner, including the air conditioning system according to any one of the embodiments of the first aspect.

The air conditioner provided by the embodiment of the second aspect of the present invention includes the air conditioning system of any one of the embodiments of the first aspect, so it has all the benefits of the air conditioning system of any one of the embodiments of the first aspect effect, which will not be repeated here.

To sum up, in the air-conditioning system provided by the embodiment of the present invention, the refrigerant (refrigerant) flows out from the outdoor heat exchanger 4 when cooling in the cooling mode, passes through the bridge valve group 6 and passes through the electric control element heat exchanger 9 for Dissipate heat to the electronic control components, and then produce a throttling effect through the throttling part 7, and then enter the indoor heat exchanger 3 through the bridge valve group 6; The group 6 passes through the electric control element heat exchanger 9 for cooling the electric control element, and then passes through the throttling part 7 to produce a throttling effect, and enters the outdoor heat exchanger 4 from the bridge valve group 6 .

Regardless of whether the refrigerant circulates along M→7→N during cooling or along N→7→M during heating, the refrigerant flows through the electric control element heat exchanger 9 before flowing through the throttling part 7, and during cooling and heating All can get the refrigerant of suitable temperature for the electric control element heat exchanger 9, be used for cooling the electric control element, guarantee the reliability of the electric control element. Moreover, the temperature of the refrigerant in the heat exchanger 9 of the electric control element is appropriate, and on the premise that it can effectively dissipate heat for the electric control element of the outdoor unit, the temperature of the electric control element will not be lower than the ambient temperature, there is no risk of condensation, and the reliability is guaranteed.

In the description of the present invention, unless otherwise clearly specified and limited, the term "plurality" means two or more; unless otherwise specified or explained, the terms "connected", "fixed", etc. should be broadly defined It is understood that, for example, "connection" may be a fixed connection, a detachable connection, or an integral connection, or an electrical connection; it may be a direct connection or an indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of this specification, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right" etc. are based on the orientation shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or unit must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as a limitation of the present invention.

In the description of this specification, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in the present invention In at least one embodiment or example of . 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.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (13)

1. An air-conditioning system, characterized in that, comprising: a compressor having a discharge port and an intake port; The reversing element has a first port to a fourth port, one of the first port and the third port communicates with the second port, and the other of the first port and the third port communicates with the The fourth port is connected, the first port is connected to the exhaust port, and the third port is connected to the air inlet; An indoor heat exchanger and an outdoor heat exchanger, one of the second port and the fourth port is connected to the first end of the indoor heat exchanger, and one of the second port and the fourth port The other one is connected with the first end of the outdoor heat exchanger; An electric control element heat exchanger, a throttling component and a bridge valve group, the bridge valve group includes a plurality of valves, and has a first connection port to a fourth connection port, the first connection port and the third connection port One of them communicates with the second connection port, and the other of the first connection port and the third connection port communicates with the fourth connection port; The throttling component is connected in series between the first connection port and the third connection port, the electric control element heat exchanger is connected in series between the throttling component and the first connection port, the One of the second connection port and the fourth connection port is connected to the second end of the outdoor heat exchanger, and the other of the second connection port and the fourth connection port is connected to the indoor heat exchanger. The second end is connected, and the bridge-shaped valve group is used to control the refrigerant to flow through the heat exchanger of the electric control element and then flow through the throttling component. 2. The air conditioning system according to claim 1, characterized in that, The bridge-shaped valve group includes four sequentially connected valve groups, which are respectively the first valve group to the fourth valve group, and each of the valve groups includes at least one of the valves, and between two adjacent valve groups There is a connecting port between the first connecting port and the fourth connecting port, wherein the first connecting port is located between the first valve group and the fourth valve group, and the The second connection port is located between the first valve group and the second valve group, the third connection port is located between the second valve group and the third valve group, and the fourth connection port is located at the first valve group. Between the third valve group and the fourth valve group. 3. The air conditioning system according to claim 2, characterized in that, The valve includes a one-way stop valve. 4. The air conditioning system according to claim 3, characterized in that, All the one-way stop valves in the bridge valve group are arranged in the same direction, wherein the one-way stop valves in the first valve group are unidirectional along the direction from the second connection port to the first connection port. One-way conduction, the one-way stop valve in the second valve group is one-way conduction along the direction from the third connection port to the second connection port, and the one-way stop valve in the third valve group is one-way conduction along the direction from the third connection port to the second connection port. The direction from the third connection port to the fourth connection port is unidirectional, and the one-way stop valve in the fourth valve group is unidirectional in the direction from the fourth connection port to the first connection port. Pass. 5. The air conditioning system according to claim 1, characterized in that, The valve includes a solenoid valve or an electronic expansion valve. 6. The air conditioning system according to claim 1, wherein: The number of the throttling component is one. 7. The air conditioning system according to claim 1, characterized in that, The throttling component includes a capillary tube, a one-way throttle valve, a two-way throttle valve or a thermal expansion valve. 8. The air conditioning system of claim 1, wherein: The throttling component includes an electronic expansion valve. 9. The air conditioning system according to claim 8, comprising: A controller, connected to the throttling component, is used to control the liquid supply amount of the throttling component according to the working condition parameters of the air conditioner. 10. The air conditioning system according to any one of claims 1 to 9, characterized in that, The electric control element heat exchanger includes a fixing plate and a heat exchange tube, and the fixing plate is provided with a groove for accommodating the heat exchange tube. 11. The air conditioning system of claim 10, wherein: The fixed plate includes a first fixed plate and a second fixed plate oppositely arranged, a first groove is provided on a side facing the second fixed plate on the first fixed plate, and a first groove is provided on the second fixed plate facing One side of the first fixing plate is provided with a second groove, the first groove and the second groove are combined to form the groove, and the groove is adapted to the heat exchange tube . 12. The air conditioning system of claim 10, wherein: The heat exchange tube includes a first end, a second end, and a bent portion between the first end and the second end, and the first end and the second end At least one of them is connected to the bent portion with a knuckle. 13. An air conditioner, characterized by comprising the air conditioning system according to any one of claims 1 to 12.