CN204629840U - Air-conditioner - Google Patents

Abstract

The utility model discloses an air conditioner, comprising: a compressor, a reversing assembly, an outdoor heat exchanger, an indoor heat exchanger, a first one-way throttle valve, a second one-way throttle valve, and a first one-way throttle valve connected in parallel. A refrigerant flow path and a second refrigerant flow path, a three-way valve and an electronically controlled radiator assembly. The first one-way throttle valve includes a first valve port and a second valve port, and the first valve port is connected with the outdoor heat exchanger. The second one-way throttle valve includes a third valve port and a fourth valve port, and the third valve port is connected with the indoor heat exchanger. The first refrigerant flow path and the second refrigerant flow path are respectively connected to the second valve port, the fifth port of the three-way valve is connected to the fourth valve port, the sixth port is connected to the first refrigerant flow path, and the seventh port is connected to the second valve port. The refrigerant flow path is connected. The electronically controlled radiator assembly includes an electronically controlled element and a heat dissipation assembly, and the heat dissipation assembly is connected in series on the first refrigerant flow path. The air conditioner of the utility model avoids generating condensation water on the electric control element and lowering the temperature of the electric control element too low.

Description

air conditioner

technical field

The utility model relates to the technical field of air conditioners, in particular to an air conditioner.

Background technique

With the development of air conditioning technology, inverter air conditioners have been widely used in the industry. However, in the outdoor electronic control system of the inverter air conditioner, the inverter module generates a lot of heat, which limits the high-frequency operation of the compressor in a high-temperature environment. Most of the electronically controlled heat dissipation methods currently used are mostly metal heat sinks that dissipate heat through air convection. However, in an outdoor high-temperature environment, this heat dissipation method is poor in heat dissipation. The usual method is to reduce the heat generated by the electronic control by reducing the operating frequency of the compressor to ensure the normal operation of the air conditioner. It greatly affects the cooling effect of the inverter air conditioner in the case of high outdoor ambient temperature, and affects the comfort of users. The existing technology of using low-temperature refrigerant to dissipate heat from the outdoor unit electric control has the problem of generating condensation or lowering the temperature of the outdoor unit electric control too low, and in the process of heating and defrosting, it will cause cold and heat shocks to the electric control , affecting the reliability and safety of electronic control. For example, the publication number is CN102844980, and the name is a refrigeration device. Not only is the design of the refrigeration system complicated, the workability is poor, the program control is complicated, and the cost is high, it is difficult to form a product. In addition, during the refrigeration cycle, a part of the refrigerant that is throttling may be used to absorb the heat of the power device, resulting in a large loss of energy efficiency.

Utility model content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, the utility model proposes an air conditioner, which avoids condensation water on the electric control element and lowers the temperature of the electric control element too low, and can improve the reliability and safety of the electric control element.

The air conditioner according to the embodiment of the present utility model includes: a compressor, the compressor has an exhaust port and an air return port; a reversing assembly, the reversing assembly includes a first port to a fourth port, and the first port It communicates with one of the second port and the third port, the fourth port communicates with the other of the second port and the third port, and the first port communicates with the exhaust port. The fourth port is connected to the air return port; the outdoor heat exchanger and the indoor heat exchanger, the first end of the outdoor heat exchanger is connected to the second port, and the first end of the indoor heat exchanger One end is connected to the third port; a first one-way throttle valve, the first one-way throttle valve includes a first valve port and a second valve port, and the first valve port exchanges heat with the outdoor connected to the second end of the device, in the direction of flow from the first valve port to the second valve port, the first one-way throttle valve is completely conducted, and in the flow direction from the second valve port to the second valve port In the flow direction of the first valve port, the first one-way throttle valve is a throttling component; the second one-way throttle valve, the second one-way throttle valve includes a third valve port and a fourth valve port, the third valve port is connected to the second end of the indoor heat exchanger, and in the flow direction from the third valve port to the fourth valve port, the second one-way throttle valve Complete conduction, in the flow direction from the fourth valve port to the third valve port, the second one-way throttle valve is a throttling component; the first refrigerant flow path and the second refrigerant flow path connected in parallel The flow path, the first refrigerant flow path and the second refrigerant flow path are respectively connected to the second valve port; the electronically controlled radiator assembly, the electronically controlled radiator assembly includes an electronic control element and is used to control the A heat dissipation assembly for the electronic control element to dissipate heat, the heat dissipation assembly is connected in series on the first refrigerant flow path; a three-way valve, the three-way valve includes a fifth port to a seventh port, the fifth port is connected to the The sixth port is connected to one of the seventh ports, the fifth port is connected to the fourth valve port of the second one-way throttle valve, and the sixth port is connected to the first refrigerant flow path, and the seventh port is connected to the second refrigerant flow path.

According to the air conditioner of the embodiment of the utility model, by providing the first one-way throttle valve, the second one-way throttle valve, the three-way valve and the heat dissipation assembly, in the cooling mode, the temperature can be close to or slightly higher than the ambient temperature. The high-temperature refrigerant flows through the cooling assembly to dissipate heat from the electronic control components. In this way, the electronic control components can be effectively dissipated without reducing the operating frequency of the compressor (even in the case of high ambient temperature), thereby ensuring the cooling effect of the air conditioner in the case of high ambient temperature , improve user comfort.

Moreover, since the temperature of the refrigerant flowing into the heat dissipation component is close to or slightly higher than the ambient temperature, it is possible to avoid condensation on the electronic control components and to reduce the temperature of the electronic control components too low, thereby improving the reliability of the electronic control components. sex and safety. In the heating or cooling mode, the fifth port is connected to the sixth port, and the temperature of the refrigerant entering the electronic control element is close to or slightly higher than the ambient temperature, which can avoid condensation water on the electric control element and will The temperature drop of the electronic control element is too low. In the defrosting mode, the fifth port is connected to the seventh port, and the refrigerant discharged from the first one-way throttle valve is discharged into the indoor heat exchanger through the second refrigerant flow path. In the middle, instead of flowing through the first refrigerant flow path, the temperature of the electric control element can be prevented from being too low, and the reliability of the electric control element can be ensured when the air conditioner is running.

Preferably, the reversing assembly is a four-way valve.

In some embodiments of the present utility model, the heat dissipation assembly includes: a heat dissipation pipe, the heat dissipation pipe is connected in series on the first refrigerant flow path; a heat dissipation shell, the heat dissipation pipe is arranged on the heat dissipation shell, the The heat dissipation shell is in contact with the electric control element for dissipating heat from the electric control element.

Specifically, the heat dissipation shell includes: a heat dissipation substrate, the heat dissipation substrate is in contact with the electronic control element; a fixed baffle, the fixed baffle is arranged on the heat dissipation substrate, and the fixed baffle and the heat dissipation An accommodating space for accommodating the heat dissipation pipe is defined between the substrates.

In some specific examples of the present invention, two ends of the heat dissipation pipe protrude from opposite side walls of the heat dissipation shell respectively so as to be connected in series with the first refrigerant flow path.

In some other specific examples of the present utility model, both ends of the heat dissipation pipe respectively protrude from the same side of the heat dissipation shell so as to be connected in series with the first refrigerant flow path.

According to some embodiments of the present utility model, the fixed baffle is provided with a fixed column, the heat dissipation substrate is provided with a fixed hole, and the fixed column is riveted to the fixed hole.

In a further embodiment of the present utility model, the air conditioner further includes a temperature detection device for detecting the temperature of the electric control element, and the electric control element is electrically connected with the temperature detection device and the three-way valve respectively, so that The electric control element controls the conduction between the fifth port and the sixth port or the seventh port according to the detection result of the temperature detection device.

Description of drawings

Fig. 1 is the schematic diagram of the air conditioner according to the utility model embodiment;

2 is a schematic diagram of a first one-way throttle valve according to an embodiment of the present invention;

3 is a schematic diagram of an electronically controlled radiator assembly according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of an electronically controlled radiator assembly according to another embodiment of the present invention.

Fig. 5 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention.

Reference signs:

air conditioner 100,

Compressor 1, exhaust port a, return air port b,

Reversing assembly 2, first port c, second port d, third port e, fourth port f,

Outdoor heat exchanger 3, indoor heat exchanger 4,

Three-way valve 5, fifth port p, sixth port q, seventh port r,

Electronic control radiator assembly 6, electronic control element 60, heat dissipation assembly 61, heat dissipation pipe 601, heat dissipation shell 602, heat dissipation substrate 6020, fixed baffle 6021,

The first one-way throttle valve 7, the first valve port m, the second valve port n, the housing 163, the chamber 1631, the valve core 164, the channel 1641, the first segment 1642, the second segment 1643, the communication hole 1644, movable part 165, throttling channel 1651,

The second one-way throttle valve 8 , the third valve port h, the fourth valve port j, the first refrigerant flow path 9 , and the second refrigerant flow path 10 .

Detailed ways

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. 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.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

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, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components , unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

The air conditioner 100 according to the embodiment of the present utility model will be described in detail below with reference to FIGS. 1-4 , wherein the air conditioner 100 has a heating mode, a cooling mode and a heating and defrosting mode.

As shown in Figure 1, an air conditioner 100 according to an embodiment of the present invention includes: a compressor 1, a reversing assembly 2, an outdoor heat exchanger 3, an indoor heat exchanger 4, a first refrigerant flow path 9, a second refrigerant A flow path 10 , an electronically controlled radiator assembly 6 , a first one-way throttle valve 7 and a second one-way throttle valve 8 . Wherein, the compressor 1 has an exhaust port a and an air return port b. It should be noted that the structure and working principle of the compressor 1 are all prior art, and will not be described in detail here.

The reversing assembly 2 includes a first port c, a second port d, a third port e and a fourth port f, the first port c is connected to one of the second port d and the third port e, and the fourth port f It communicates with the other of the second port d and the third port e, the first port c is connected with the exhaust port a, and the fourth port f is connected with the return port b. That is, when the first port c communicates with the second port d, the fourth port f communicates with the third port e. When the first port c communicates with the third port e, the fourth port f communicates with the second port d.

The first end of the outdoor heat exchanger 3 is connected to the second port d, and the first end of the indoor heat exchanger 4 is connected to the third port e.

The first one-way throttle valve 7 includes a first valve port m and a second valve port n, and the first valve port m is connected with the second end of the outdoor heat exchanger 3. In the flow direction of n, the first one-way throttle valve 7 is fully conducted, and in the flow direction from the second valve port n to the first valve port m, the first one-way throttle valve 7 is a throttling component.

The second one-way throttle valve 8 includes a third valve port h and a fourth valve port j, and the third valve port h is connected to the second end of the indoor heat exchanger 4. In the flow direction of j, the second one-way throttle valve 8 is fully conducted, and in the flow direction from the fourth valve port j to the third valve port h, the second one-way throttle valve 8 is a throttling component.

The first refrigerant flow path 9 and the second refrigerant flow path 10 are connected in parallel, and the first refrigerant flow path 9 and the second refrigerant flow path 10 are respectively connected to the second valve port n. In other words, the refrigerant can enter the first refrigerant flow path 9 or the second refrigerant flow path 10 through the second valve port n.

The electronically controlled radiator assembly 6 includes an electronically controlled element 60 and a heat dissipation assembly 61 for dissipating heat from the electronically controlled element 60 . The heat dissipation assembly 61 is connected in series on the first refrigerant flow path 9 .

That is to say, when the refrigerant flows through the first refrigerant flow path 9, the electronically controlled element 60 on the electronically controlled cooling assembly 6 can dissipate heat through the refrigerant; when the refrigerant flows through the second refrigerant flow path 10 without flowing through the first refrigerant When the flow path 9 is used, the electronically controlled element 60 on the electronically controlled cooling assembly 6 can only dissipate heat through other methods (for example, air cooling).

The three-way valve 5 includes a fifth port p, a sixth port q and a seventh port r, and the fifth port p communicates with one of the sixth port q and the seventh port r. In other words, when the fifth port p is connected to the sixth port q, the fifth port p is not connected to the seventh port r, and when the fifth port p is connected to the seventh port r, the fifth port p is connected to the sixth port r. Port q is not conducting.

Wherein, the fifth port p is connected with the fourth valve port j of the second one-way throttle valve 8 , the sixth port q is connected with the first refrigerant flow path 9 , and the seventh port r is connected with the second refrigerant flow path 10 . When the fifth port p is connected to the sixth port q, the refrigerant flows through the first refrigerant flow path 9 and does not flow through the second refrigerant flow path 10; when the fifth port p is connected to the seventh port r, the refrigerant flows through the second refrigerant flow path 10. The second refrigerant flow path 10 does not flow through the first refrigerant flow path 9 .

The structure of the first one-way throttle valve 7 and the flow process of refrigerant in the first one-way throttle valve 7 will be described in detail below by taking the first one-way throttle valve 7 as an example. It should be noted that the structure of the second one-way throttle valve 8 is the same as that of the first one-way throttle valve 7, and the working principle of the second one-way throttle valve 8 is the same as that of the first one-way throttle valve 7. The working principle is the same, and will not be described in detail here.

As shown in FIG. 2 , the first one-way throttle valve 7 may include: a housing 163 , a valve core 164 and a movable part 165 . Wherein, the casing 163 has a chamber 1631 inside, and the valve core 164 is disposed in the chamber 1631 . The spool 164 has a channel 1641 communicating with the chamber 1631. The first end of the channel 1641 is located adjacent to the first valve port m, and the second end of the channel 1641 is located adjacent to the second valve port n. The channel 1641 includes a first section 1642 and a second section 1643 communicating with the first section 1642. The cross-sectional area of the first section 1642 is smaller than that of the second section 1643. There is a gap between the outer peripheral wall of the second section 1643 and the inner wall of the cavity 1631 , and a plurality of communication holes 1644 communicating with the cavity 1631 are provided on the side wall of the second section 1643 . Preferably, the sum of cross-sectional areas of the plurality of communicating holes 1644 is greater than or equal to the cross-sectional area of the second section 1643 . The movable part 165 is slidably disposed in the second section 1643 to open or close the communicating hole 1644 , and the outer peripheral wall of the movable part 165 is attached to the inner wall of the second section 1643 . The movable part 165 is provided with a throttling passage 1651, the first end of the throttling passage 1651 is arranged at a position adjacent to the first valve port m, and the second end of the throttling passage 1651 is arranged at a position adjacent to the second valve port n , the cross-sectional area of the throttle channel 1651 is much smaller than the cross-sectional area of the second segment 1643 . When the movable part 165 moves to a position adjacent to the second valve port n, the movable part 165 opens the communication hole 1644, and the second section 1643 of the channel 1641 can communicate with the chamber 1631 through the communication hole 1644; When the valve port is at a position of m, the movable part 165 closes the communication hole 1644 , the passage 1641 cannot communicate with the chamber 1631 through the communication hole 1644 , and the passage 1641 communicates with the chamber 1631 through the throttling passage 1651 .

When the refrigerant flows from the first valve port m to the second valve port n, in the direction shown by the arrow A in Figure 2, the refrigerant enters the chamber 1631 from the first valve port m, and then flows through the channel 1641 of the valve core 164. The first end enters the first section 1642 of the channel 1641, and under the push of the refrigerant, the movable part 165 moves in the direction indicated by the arrow A in the second section 1643, and the movable part 165 opens the communication hole 1644, and the refrigerant is released from the second section 1643. After one section 1642 enters the second section 1643, it enters into the chamber 1631 through the communication hole 1644. At this time, the first one-way throttle valve 7 only acts as a connecting pipe, that is, the pressure at both ends of the passage 1641 is roughly equal; when the refrigerant When flowing from the second valve port n to the first valve port m, the refrigerant enters the chamber 1631 from the second valve port n in the direction shown by arrow B in FIG. end into the second section 1643 of the channel 1641, under the push of the refrigerant, the movable part 165 moves in the direction shown by the arrow B in the second section 1643, the movable part 165 closes the communication hole 1644, and the refrigerant flows from the chamber 1631 After entering the second segment 1643, it enters the first segment 1642 through the throttling passage 1651, and then flows out from the first end of the passage 1641 into the chamber 1631. Since the cross-sectional area of the throttling passage 1651 is much smaller than that of the second The cross-sectional area of the section 1643 and the pressure difference between the two ends of the channel 1641 are relatively large, and at this time the first one-way throttle valve 7 plays a throttling role.

The following describes the working process of the air conditioner 100 according to the embodiment of the present utility model with reference to FIG. 1 .

When the air conditioner 100 is in cooling mode, the first port c of the reversing assembly 2 communicates with the second port d, the third port e communicates with the fourth port f, and the fifth port p and sixth port q conduct.

As shown by the solid arrow in Figure 1, the refrigerant discharged from the exhaust port a of the compressor 1 flows into the outdoor heat exchanger 3 through the first port c and the second port d to condense, and the refrigerant discharged from the outdoor heat exchanger 3 The refrigerant enters the first one-way throttle valve 7 through the first valve port m. At this time, the first one-way throttle valve 7 is fully connected to play the role of a connecting pipe. At this time, the fifth port p of the three-way valve 5 It can be connected to the sixth port q, so the refrigerant flowing out of the first one-way throttle valve 7 will flow into the first refrigerant flow path 9, and the electronic control element on the heat dissipation assembly 61 on the first refrigerant flow path 9 60 for heat dissipation, and the refrigerant flowing out from the heat dissipation assembly 61 enters the second one-way throttle valve 8 through the three-way valve 5 and the fourth valve port j. Since the second one-way throttle valve 8 is a throttling component in the flow direction from the fourth valve port j to the third valve port h, the refrigerant converging into the second one-way throttle valve 8 is in the second one-way throttle valve. Throttling and depressurization are carried out in the throttle valve 8.

The refrigerant discharged from the second one-way throttle valve 8 is discharged into the indoor heat exchanger 4 to cool the indoor environment, and the refrigerant discharged from the indoor heat exchanger 4 passes through the third port e, the fourth port f and the air return port b is discharged back to compressor 1 to complete the refrigeration cycle.

When the air conditioner 100 is in the cooling mode, since the temperature of the refrigerant discharged from the outdoor heat exchanger 3 is slightly higher than the ambient temperature and lower than the temperature of the heat dissipation assembly 61, when the refrigerant with a temperature slightly higher than the ambient temperature flows through the heat dissipation assembly 61 During this time, the electric control element 60 can be dissipated, and at the same time, the generation of condensed water can be effectively prevented.

When the air conditioner 100 is in the heating mode, the first port c of the reversing assembly 2 communicates with the third port e and the second port d communicates with the fourth port f, and the fifth port p of the three-way valve 5 can communicate with the sixth port Port q is turned on. As shown in Figure 1, the refrigerant discharged from the exhaust port a of the compressor 1 is discharged into the indoor heat exchanger 4 through the first port c and the third port e for condensation, and the refrigerant discharged from the indoor heat exchanger 4 is The third valve port h is discharged into the second one-way throttle valve 8, because the second one-way throttle valve 8 is completely conducted in the flow direction from the third valve port h to the fourth valve port j, so the second The one-way throttle valve 8 functions as a connecting pipe. At this time, the fifth port p of the three-way valve 5 can communicate with the sixth port q, so the refrigerant flowing out of the second one-way throttle valve 8 will flow into the first refrigerant flow path 9, and the first refrigerant flow The electronic control element 60 on the heat dissipation assembly 61 on the road 9 dissipates heat, and the refrigerant flowing out from the heat dissipation assembly 61 is discharged into the first one-way throttle valve 7 through the second valve port n.

Since the first one-way throttle valve 7 is a throttling component in the flow direction from the second valve port n to the first valve port m, the refrigerant is throttled and depressurized in the first one-way throttle valve 7, from The refrigerant discharged from the first one-way throttle valve 7 enters the outdoor heat exchanger 3 for evaporation, and the refrigerant discharged from the outdoor heat exchanger 3 is discharged back to the compressor through the second port d, the fourth port f and the air return port b 1, complete the heating cycle.

When the air conditioner 100 is in the heating mode, since the temperature of the refrigerant discharged from the indoor heat exchanger 4 is slightly higher than the ambient temperature and lower than the temperature of the heat dissipation assembly 61, the refrigerant with a temperature slightly higher than the ambient temperature flows through the heat dissipation assembly 61, The electric control element 60 can be dissipated, and the generation of condensed water can be effectively prevented at the same time, and the reliability of the electric control element 60 can be ensured when the air conditioner 100 is in heating operation.

When the air conditioner 100 is heating and defrosting, since the temperature of the refrigerant flowing out of the outdoor heat exchanger 3 is very low at the initial stage of defrosting, in this case, the refrigerant flowing through the heat dissipation assembly 61 will produce thermal shock to the electronic control element 60 . Therefore, preferably, when the air conditioner 100 is in the heating and defrosting mode, at the beginning of the heating and defrosting, the fifth port p of the three-way valve 5 is connected to the seventh port r, so that the refrigerant does not flow through the first refrigerant In the flow path 9 , the refrigerant completely flows through the second refrigerant flow path 10 , that is to say, the refrigerant does not flow through the heat dissipation assembly 61 , so as to prevent the cold and heat impact of the refrigerant on the electronic control element 60 from affecting the service life of the electronic control element 60 . When the air conditioner 100 is in the defrosting mode, the first port c of the reversing assembly 2 communicates with the second port d, the third port e communicates with the fourth port f, and the fifth port p communicates with the seventh port r.

According to the air conditioner 100 of the embodiment of the present invention, by providing the first one-way throttle valve 7, the second one-way throttle valve 8, the three-way valve 5 and the cooling assembly 61, in the cooling mode, the temperature can be close to Or the refrigerant with a temperature slightly higher than the ambient temperature flows through the heat dissipation assembly 61 to dissipate heat from the electronic control element 60 . This can effectively dissipate heat to the electronic control element 60 without reducing the operating frequency of the compressor 1 (even in the case of high ambient temperature), thereby ensuring Cooling effect, improve user comfort.

Moreover, since the temperature of the refrigerant flowing into the cooling assembly 61 is close to or slightly higher than the ambient temperature, it is possible to avoid generating condensation water on the electric control element 60 and to drop the temperature of the electric control element 60 too low, thereby improving the performance of the electric control element. Component 60 reliability and safety. In the heating or cooling mode, the fifth port p is connected to the sixth port q, and the temperature of the refrigerant entering the electric control element 60 is close to or slightly higher than the ambient temperature, which can avoid condensation on the electric control element 60 The water and the temperature of the electronic control element 60 are too low; in the defrosting mode, the fifth port p is connected to the seventh port r, and the refrigerant discharged from the first one-way throttle valve 7 passes through the second refrigerant flow path 10 is discharged into the indoor heat exchanger 4 without flowing through the first refrigerant flow path 9, thereby preventing the temperature of the electronic control element 60 from being too low and ensuring the reliability of the electronic control element 60 when the air conditioner 100 is running.

As shown in FIG. 1 , in a preferred embodiment of the present invention, the reversing assembly 2 is a four-way valve. Of course, it can be understood that the structure of the reversing assembly 2 is not limited thereto. The reversing assembly 2 may include a first pipeline to a fourth pipeline, the first pipeline to the fourth pipeline are connected end to end in sequence, and the first pipeline is connected in series with a first channel An off valve, a second on-off valve is connected in series on the second pipeline, a third on-off valve is connected in series on the third pipeline, a fourth on-off valve is connected in series on the fourth pipeline, the connection between the first pipeline and the second pipeline is defined Out of the first port c, the connection of the first pipeline and the fourth pipeline defines the second port d, the connection of the fourth pipeline and the third pipeline defines the fourth port f, the connection of the third pipeline and the second pipeline A third port e is defined, the first on-off valve and the third on-off valve are opened or closed simultaneously, and the second on-off valve and the fourth on-off valve are opened or closed simultaneously.

As shown in FIG. 3 and FIG. 4 , according to an embodiment of the present invention, the heat dissipation assembly 61 may include: a heat dissipation pipe 601 and a heat dissipation shell 602 . Preferably, the heat dissipation pipe 601 is a copper pipe. Thereby, the heat exchange efficiency of the heat radiation pipe 601 can be improved. Wherein, the heat dissipation pipe 601 is connected in series on the first refrigerant flow path 9 , and the refrigerant can flow in the heat dissipation pipe 601 . The heat dissipation pipe 601 is arranged on the heat dissipation shell 602 , and the heat dissipation shell 602 is in contact with the electronic control element 60 for dissipating heat from the electric control element 60 . Thus, the heat dissipation efficiency of the heat dissipation assembly 61 can be improved, and the operation stability of the electronic control element 60 can be ensured.

Further, the heat dissipation case 602 may include: a heat dissipation substrate 6020 and a fixed baffle 6021 . Wherein, the heat dissipation substrate 6020 is in contact with the electric control element 60 , and the temperature of the electric control element 60 can be directly transmitted to the heat dissipation substrate 6020 . The fixed baffle 6021 is disposed on the heat dissipation substrate 6020 , so that the fixed baffle 6021 and the heat dissipation substrate 6020 can directly exchange heat. It can be understood that there is no special limitation on the connection method between the fixed baffle 6021 and the heat dissipation substrate 6020. For example, in the example shown in FIG. 3 and FIG. 4, the fixed baffle 6021 is attached to the heat dissipation substrate 6020 . Further, the fixed baffle 6021 is provided with a fixed column (not shown in the figure), and the heat dissipation substrate 6020 is provided with a fixed hole (not shown in the figure), and the fixed column is riveted to the fixed hole. Thus, the contact area between the fixed baffle 6021 and the heat dissipation substrate 6020 can be increased, thereby improving the heat exchange efficiency between the fixed baffle 6021 and the heat dissipation substrate 6020 .

In order to further improve the heat dissipation efficiency of the heat dissipation assembly 61 , an accommodation space for accommodating the heat dissipation pipe 601 is defined between the fixed baffle plate 6021 and the heat dissipation substrate 6020 . In this way, the heat exchange area between the fixed baffle 6021 and the heat dissipation pipe 601 can be increased, thereby further improving the heat dissipation efficiency of the heat dissipation assembly 61 and ensuring the operation stability of the electronic control element 60 . Preferably, the shape of the accommodation space is the same as that of the heat dissipation pipe 601 . Thus, the contact area between the heat dissipation pipe 601 and the fixed baffle 6021 and the heat dissipation substrate 6020 is further increased, and the heat dissipation pipe 601 can directly exchange heat with the fixed baffle 6021 and the heat dissipation substrate 6020 .

For example, in the example shown in FIG. 3 and FIG. 4 , the end surface of the heat dissipation substrate 6020 facing the fixed baffle 6021 is provided with a first groove, and the end surface of the fixed baffle 6021 facing the heat dissipation substrate 6020 is provided with a second groove. The groove, the first groove and the second groove cooperate to define an accommodation space. As a result, it is convenient to install the heat dissipation pipe 601 on the heat dissipation shell 602 , and at the same time, the contact area between the heat dissipation pipe 601 , the heat dissipation substrate 6020 and the fixed baffle 6021 is increased. For the convenience of processing, in one example of the present invention, the cross-sections of the first groove and the second groove are respectively formed as semicircles.

In the example shown in FIG. 4 , in order to improve the heat dissipation efficiency of the heat dissipation assembly 61 , two ends of the heat dissipation pipe 601 protrude from opposite side walls of the heat dissipation shell 602 to be connected in series with the first refrigerant flow path 9 . Of course, the positions of the two ends of the heat dissipation pipe 601 are not limited thereto. In order to further improve the heat dissipation efficiency of the heat dissipation assembly 61, for example, in the example shown in FIG. extended to be connected in series with the first refrigerant flow path 9 . For example, the heat dissipation pipe 601 can be formed into a U-shaped structure, thereby prolonging the length of the heat dissipation pipe 601 in the heat dissipation shell 602, thereby increasing the contact area between the heat dissipation pipe 601, the heat dissipation substrate 6020, and the fixed baffle plate 6021, and further improving The heat dissipation efficiency of the heat dissipation assembly 61 is improved.

In some embodiments of the present utility model, the air conditioner 100 also includes a temperature detection device (not shown) for detecting the temperature of the electric control element 60, and the electric control element 60 is electrically connected with the temperature detection device and the three-way valve 5 respectively. , the electronic control element 60 controls the fifth port p to conduct with the sixth port q or the seventh port r according to the detection result of the temperature detection device.

The temperature detection device can be arranged on the heat dissipation assembly 61 adjacent to the electronic control element 60 such as the heat dissipation substrate 6020 , and the temperature detection device can also be directly arranged on the electric control element 60 . Thereby, the degree of automation of the air conditioner 100 can be improved, and whether the refrigerant is used to dissipate heat from the electronic control component 60 can be controlled according to the temperature of the electronic control component 60, which further ensures that the electronic control component 60 can be effectively radiated heat, and can further avoid Generation of condensate.

More specifically, the temperature collected by the temperature detection device can be compared with the first predicted temperature value and the second predicted temperature value, and when the detected temperature is higher than the first predicted temperature value, the three-way valve 5 is controlled to Make the fifth port p and the sixth port q conduction, the refrigerant flows through the first refrigerant flow path 9, and then cool down the electric control element 60 on the first refrigerant flow path 9, when the detected temperature is lower than the second pre-judgment temperature value, control the three-way valve 5 so that the fifth port p and the seventh port r are connected, and the refrigerant flows through the second refrigerant flow path 10 instead of the first refrigerant flow path 9, thus preventing the The temperature of the electric control element 60 on the first refrigerant flow path 9 is too low, wherein the first predicted temperature value is not lower than the second predicted temperature value. It can be understood that the specific values of the first predicted temperature value and the second predicted temperature value can be limited according to actual conditions.

The control method of the air conditioner according to the embodiment of the present utility model will be described in detail below.

The control method of the embodiment of the present invention is aimed at the air conditioner 100 in the above embodiment, and the control method may include the following steps:

S1: the air conditioner 100 is turned on and running, and the running state of the air conditioner 100 is detected;

S2: When it is detected that the air conditioner 100 is in heating operation, the fifth port p is connected to the sixth port q; when it is detected that the air conditioner 100 is in cooling operation, the fifth port p is connected to the sixth port q.

S3: When it is detected in step S2 that the air conditioner 100 is in heating operation, after the air conditioner has been running for a period of time, detect whether the air conditioner 100 starts to defrost;

S4: When it is detected that the air conditioner 100 is starting to defrost, the three-way valve is switched to connect the fifth port p and the seventh port r, and when the air conditioner 100 is not defrosting, keep the fifth port p and the sixth port q conducting Pass;

S5: Detect whether the defrosting of the air conditioner 100 is completed. When the defrosting of the air conditioner 100 is not completed, keep the fifth port p and the seventh port r connected. When the defrosting of the air conditioner 100 is completed, detect whether the air conditioner 100 is turned off;

S6: When it is detected that the air conditioner 100 is not turned off, return to step S1, and end when the air conditioner 100 is turned off.

The control method of the air conditioner 100 according to the embodiment of the present utility model will be described in detail below with reference to FIG. 5 .

Step 1: The air conditioner 100 is turned on and running, and the running state of the air conditioner 100 is detected;

Step 2: When it is detected that the air conditioner 100 is in heating operation, the fifth port p is connected to the sixth port q, and when it is detected that the air conditioner 100 is in cooling operation, the fifth port is connected to the sixth port;

Step 3: After the air conditioner 100 has been heating and running for a period of time, detect whether the air conditioner 100 is defrosting;

Step 4: When it is detected that the air conditioner 100 starts to defrost, the fifth port p is connected to the seventh port r, otherwise the fifth port p is connected to the sixth port q;

Step 5: Detect whether the defrosting of the air conditioner 100 is completed. If the defrosting of the air conditioner 100 is completed, enter the sixth step, otherwise, the fifth port p and the seventh port r are connected;

Step 6: Detect whether the air conditioner 100 is turned off, if it is finished, otherwise return to the first step.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (8)

1. an air-conditioner, is characterized in that, comprising:

Compressor, described compressor has exhaust outlet and gas returning port;

Commutation assembly, described commutation assembly comprises the first port to the 4th port, one of them conducting in described first port and the second port and the 3rd port, another conducting in described 4th port and described second port and described 3rd port, described first port is connected with described exhaust outlet, and described 4th port is connected with described gas returning port;

Outdoor heat exchanger and indoor heat exchanger, the first end of described outdoor heat exchanger is connected with described second port, and the first end of described indoor heat exchanger is connected with described 3rd port;

First one-way throttle valve, described first one-way throttle valve comprises the first valve port and the second valve port, described first valve port is connected with the second end of described outdoor heat exchanger, on from described first valve port to the circulating direction of described second valve port, the complete conducting of described first one-way throttle valve, on from described second valve port to the circulating direction of described first valve port, described first one-way throttle valve is throttle part;

Second one-way throttle valve, described second one-way throttle valve comprises the 3rd valve port and the 4th valve port, described 3rd valve port is connected with the second end of described indoor heat exchanger, on from described 3rd valve port to the circulating direction of described 4th valve port, the complete conducting of described second one-way throttle valve, on from described 4th valve port to the circulating direction of described 3rd valve port, described second one-way throttle valve is throttle part;

The first refrigerant flow be connected in parallel and the second refrigerant flow, described first refrigerant flow is connected with described second valve port respectively with described second refrigerant flow;

Electric radiator assembly, described electric radiator assembly comprises electric control element and the radiating subassembly for dispelling the heat to described electric control element, and described radiating subassembly is connected on described first refrigerant flow;

Triple valve, described triple valve comprises five-port to the 7th port, one of them conducting in described five-port and described 6th port and described 7th port, described five-port is connected with the 4th valve port of described second one-way throttle valve, described 6th port is connected with described first refrigerant flow, and described 7th port is connected with described second refrigerant flow.

2. air-conditioner according to claim 1, is characterized in that, described commutation assembly is cross valve.

3. air-conditioner according to claim 1, is characterized in that, described radiating subassembly comprises:

Radiating tube, described radiating tube is connected on described first refrigerant flow;

Radiation shell, described radiating tube is located on described radiation shell, and described radiation shell contacts with described electric control element and is used for dispelling the heat to described electric control element.

4. air-conditioner according to claim 3, is characterized in that, described radiation shell comprises:

Heat-radiating substrate, described heat-radiating substrate contacts with described electric control element;

Fixed dam, described fixed dam is located on described heat-radiating substrate, limits the spatial accommodation for holding described radiating tube between described fixed dam and described heat-radiating substrate.

5. air-conditioner according to claim 3, is characterized in that, the two ends of described radiating tube stretch out to be connected on described first refrigerant flow from the opposing sidewalls of described radiation shell respectively.

6. air-conditioner according to claim 3, is characterized in that, the two ends of described radiating tube stretch out to be connected on described first refrigerant flow from the same side of described radiation shell respectively.

7. air-conditioner according to claim 4, is characterized in that, described fixed dam is provided with fixed leg, and described heat-radiating substrate is provided with fixing hole, and described fixed leg is connected with described fixing hole riveted.

8. air-conditioner according to claim 1, it is characterized in that, also comprise the temperature-detecting device for detecting described electric control element temperature, described electric control element is electrically connected with described temperature-detecting device and described triple valve respectively, and described electric control element controls described five-port and described 6th port or the 7th port conducting according to the testing result of described temperature-detecting device.