CN218065130U

CN218065130U - Indoor unit of air conditioner

Info

Publication number: CN218065130U
Application number: CN202222584237.1U
Authority: CN
Inventors: 王全亮; 吕伟永; 李冠群
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2022-12-16
Anticipated expiration: 2032-09-28

Abstract

The utility model provides an indoor unit of air conditioner, include: a housing provided with a fresh air port; the fresh air module is used for sucking fresh air from the outside and blowing the fresh air into the room through the fresh air inlet after passing through the fresh air module; the indoor heat exchanger is arranged in the shell and is provided with an inlet pipe, an outlet pipe and an outlet main pipe, and the refrigerant enters the heat exchanger through the inlet pipe and flows to the outlet main pipe through the outlet pipe; the three-way valve comprises a first pipe section, a second pipe section and a third pipe section, the first pipe section is connected with the refrigerant outlet pipe of the indoor heat exchanger, and the second pipe section is connected with the outlet header pipe; the fresh air heat exchanger is arranged in the fresh air module, a refrigerant inlet pipe and a refrigerant outlet pipe are arranged on the fresh air heat exchanger, the refrigerant inlet pipe is connected with the third pipe section, and the refrigerant outlet pipe is connected to the outlet header pipe; the three-way valve is used for controlling the opening or closing of the second pipe section and the third pipe section. The utility model discloses be favorable to reducing the new trend and the indoor difference in temperature of introducing.

Description

Indoor unit of air conditioner

Technical Field

The utility model relates to an air conditioning technology field especially relates to an indoor unit of air conditioner.

Background

At present, the household appliance industry is in a situation of intense competition, each big competitive product has unique innovation in the aspects of functions, appearance and the like, and the product details are also important factors influencing the purchasing power of consumers. In the related art, the existing fresh air mixing effect is poor; the experience effect of new trend is poor, and the user is difficult to audio-visually see mixes wind on-off state after opening the new trend function. When the indoor and outdoor temperature difference is large, the problem that the fluctuation of the indoor temperature is large due to the introduction of fresh air easily exists, and the use experience of a user is influenced.

In view of this, the present invention is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve one of the technical problem in the correlation technique at least to a certain extent.

Therefore, the application aims to provide the air conditioner indoor unit, so that the phenomenon that fresh air is introduced to large fluctuation of indoor temperature is reduced.

In order to achieve the above object, the utility model provides an indoor unit of air conditioner, include:

an indoor unit of an air conditioner, comprising:

a housing provided with a fresh air port;

the fresh air module is used for sucking fresh air from the outside and blowing the fresh air into the room through the fresh air inlet after passing through the fresh air module;

the indoor heat exchanger is arranged in the shell and is provided with an inlet pipe, an outlet pipe and an outlet main pipe, and the refrigerant enters the heat exchanger through the inlet pipe and flows to the outlet main pipe through the outlet pipe;

the three-way valve comprises a first pipe section, a second pipe section and a third pipe section, the first pipe section is connected with the refrigerant outlet pipe of the indoor heat exchanger, and the second pipe section is connected with the outlet header pipe;

the fresh air heat exchanger is arranged in the fresh air module, a refrigerant inlet pipe and a refrigerant outlet pipe are arranged on the fresh air heat exchanger, the refrigerant inlet pipe is connected with the third pipe section, and the refrigerant outlet pipe is connected to the outlet header pipe;

the three-way valve is used for controlling the opening or closing of the second pipe section and the third pipe section.

In some embodiments of this application, the three-way valve still includes the knob, the inside of knob is provided with tee bend pipeline, three pipelines of tee bend pipeline correspond respectively first pipeline section, second pipeline section with the third pipeline section sets up, rotate in order to control the tee bend pipeline with the intercommunication of second pipeline section with the third pipeline section or cut off

In some embodiments of the present application, a pipe included angle is formed between two adjacent pipes in the three-way pipe, and an angle of at least two pipe included angles is the same and is not equal to 120 °.

In some embodiments of this application, be provided with in the new trend module and purify the screen frame, the new trend heat exchanger for purify the screen frame and be close to indoor heat exchanger sets up.

In some embodiments of the present application, the fresh air module includes a fresh air shell and a spiral case, the fresh air shell is disposed close to the indoor heat exchanger with respect to the spiral case, at least a portion of the purification screen frame is disposed in the fresh air shell, a perforation is disposed on the fresh air shell, the refrigerant inlet pipe of the fresh air heat exchanger is connected to the third pipe section of the three-way valve through one of the perforations which is disposed inside the fresh air shell, and the refrigerant outlet pipe of the fresh air heat exchanger is connected to the outlet header pipe through another of the perforations which is disposed inside the fresh air shell.

In some embodiments of the present application, a sealing ring is disposed inside the perforated fresh air shell and outside the fresh air shell.

In some embodiments of this application, be provided with air outlet and air intake on the casing, be provided with the base in the casing, the inside of base is provided with the heat transfer wind channel, heat transfer wind channel intercommunication the air intake with the air outlet, room air by the air intake gets into the warp the heat transfer wind channel by the air outlet blows off, be provided with the holding chamber on the base, be provided with the new trend pipeline in the holding chamber, the new trend pipeline with the new trend module is linked together, be provided with the new trend opening on the new trend pipeline, the new trend opening with the new trend opening corresponds the setting.

In some embodiments of the application, new trend through-hole department rotates and is connected with new trend aerofoil, new trend aerofoil rotates with at least part open or close the new trend through-hole.

In some embodiments of the present application, the heat exchange air duct has a heat exchange inlet and a heat exchange outlet, the heat exchange inlet corresponds to the air inlet, and the heat exchange outlet corresponds to the air outlet.

In some embodiments of the present application, an auxiliary air deflector is disposed at the heat exchange air port, the auxiliary air deflector includes a first rotating shaft and air guide fins, two ends of the air guide fins are respectively connected to the first rotating shaft, and the first rotating shaft is rotatably connected to an inner wall of the heat exchange air duct.

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

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a complete view of an indoor unit of an air conditioner according to an embodiment of the present application;

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a cross-sectional view illustrating a fresh air vane and an auxiliary air vane of an indoor unit of an air conditioner according to an embodiment of the present application, when the rotation angles thereof are changed;

fig. 4 is a schematic disassembled front panel of an indoor unit of an air conditioner according to an embodiment of the present application;

FIG. 5 is an enlarged view of portion B of FIG. 4;

fig. 6 is a disassembled schematic view of a casing and a base of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 7 is a schematic connection diagram of an indoor heat exchanger and a fresh air heat exchanger of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 8 is a schematic connection diagram of a three-way valve of an air conditioning indoor unit according to an embodiment of the present application;

fig. 9 is a disassembled schematic view of a fresh air duct of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 10 is a schematic structural view of a fresh air module of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 11 is a disassembled schematic view of a fresh air module of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 12 is a first schematic structural view of a three-way valve of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 13 is a second schematic structural view of a three-way valve of an indoor unit of an air conditioner according to an embodiment of the present application;

FIG. 14 is a cross-sectional view taken along line C-C of FIG. 13;

fig. 15 is a schematic position view of a knob of an indoor unit of an air conditioner according to an embodiment of the present application, rotated 90 ° in a forward direction;

fig. 16 is a schematic position diagram of a knob of an air conditioning indoor unit according to an embodiment of the present application after being rotated in a reverse direction by 90 °.

In the above figures: 1. a housing; 11. an air inlet; 12. an air outlet; 13. a second positioning hole; 2. a base; 21. a heat exchange air duct; 22. a heat exchange inlet; 23. a heat exchange outlet; 24. an accommodating cavity; 241. a positioning column; 242. a fixing member; 25. a front panel; 251. avoiding the gap; 3. a three-way valve; 31. a first tube section; 32. a second tube section; 33. a third tube section; 34. a knob; 35. a three-way pipeline; 4. an indoor heat exchanger; 41. an inlet pipe; 42. an outlet pipe; 43. an outlet manifold; 5. a fresh air duct; 51. a fresh air plate; 52. a first positioning hole; 53. a fresh air port; 61. an air guide rod; 63. wind guide blades; 7. a main air deflector; 71. a main panel; 72. an extension arm; 8. an auxiliary air deflector; 81. a first rotating shaft; 82. a second rotating shaft; 83. a wind guide sheet; 9. a fresh air heat exchanger; 91. a refrigerant inlet pipe; 92. a refrigerant outlet pipe; 93. a fan; 10. a volute; 101. a first shell; 1011. an air suction opening; 1012. an air outlet; 102. a second shell; 103. a flow guide channel; 104. fresh air shells; 1041. a fresh air inlet; 1042. a fresh air outlet; 105. a purge port; 106. air inlet elbow pipe 107, purification screen frame 108, sealing washer.

Detailed Description

The present invention will now be described in detail by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the present application, an air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The air conditioner includes an indoor air conditioner and an outdoor air conditioner, the outdoor air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor or outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner serves as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner serves as a cooler in a cooling mode.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

The air conditioning indoor unit according to the embodiment of the present application may be a wall-mounted indoor unit, but the present application is not limited thereto.

Referring to fig. 1 to 11, an air conditioning indoor unit according to an embodiment of the present application includes a case 1 and a base 2. In this embodiment, the side of the air-conditioning indoor unit hung on the wall is the rear side.

In this embodiment, the casing 1 forms an overall appearance of the indoor unit of the air conditioner, the casing 1 is provided with the air outlet 12 and the air inlet 11, and the air outlet 12 is a strip-shaped air outlet arranged along the length direction of the indoor unit of the air conditioner. The outlet 12 may be provided at a lower side of the housing 1 and the inlet 11 may be provided at an upper side of the housing 1.

The casing 1 is coated on the base 2, the base 2 is provided with a heat exchange air duct 21, the heat exchange air duct 21 communicates the air inlet 11 and the air outlet 12 of the casing 1, and indoor air enters the casing 1 from the air inlet 11 and is blown out from the air outlet 12 after passing through the heat exchange air duct 21.

The indoor heat exchanger 4 may be disposed in the heat exchange air duct 21 and on a side of the heat exchange air duct 21 close to the air inlet 11. The indoor heat exchanger 4 is used for absorbing heat from air introduced into the air inlet 11 or transmitting heat to the air, and the indoor air is blown out from the air outlet 12 through the heat exchange air duct 21.

A drip tray may be provided below the indoor heat exchanger 4 to collect moisture condensed in the indoor heat exchanger 4. The drip pan may be connected to a drain pipe extending to the outside of the base 2, thereby discharging condensed water to the outside of the indoor unit of the air conditioner. In some embodiments, the water pan may be integrally formed with the base 2, thereby reducing cost and improving installation efficiency.

A heat exchange fan may be provided in the heat exchange air duct 21 to blow air so that indoor air may flow from the intake port 11 to the exhaust port 12.

Under the action of forced convection of the heat exchange fan, indoor air enters the shell 1 from the air inlet 11, exchanges heat with the indoor heat exchanger 4 and then is blown out along the air outlet 12.

A fresh air module is arranged in a shell 1 of the indoor unit of the air conditioner and used for sucking fresh air from the outside, and the fresh air flows through the fresh air module and then flows indoors through a fresh air port.

The fresh air module is arranged at one end of the indoor heat exchanger 4 in the shell 1, the indoor heat exchanger 4 is provided with an inlet pipe 41, an outlet pipe 42 and an outlet header pipe 43, and the refrigerant enters the indoor heat exchanger 4 through the inlet pipe 41 and flows out to the outlet header pipe 43 through the outlet pipe 42.

A fresh air heat exchanger 9 is arranged in the fresh air module, and a refrigerant inlet pipe 91 and a refrigerant outlet pipe 92 are arranged on the fresh air heat exchanger 9.

The outlet pipe 42 of the indoor heat exchanger 4 is connected to the outlet manifold 43 through the three-way valve 3. The three-way valve 3 includes a first pipe segment 31, a second pipe segment 32 and a third pipe segment 33, the first pipe segment 31 is connected to the refrigerant outlet pipe 42 of the indoor heat exchanger 4, and the second pipe segment 32 is connected to the outlet manifold 43. The refrigerant inlet pipe 91 of the fresh air heat exchanger 9 is connected with the third pipe section 33 of the three-way valve 3, and the refrigerant outlet pipe 92 of the fresh air heat exchanger 9 is connected with the outlet header pipe 43.

When the indoor unit of the air conditioner performs refrigeration, a refrigerant flows through the indoor heat exchanger 4 through the inlet pipe 41 of the indoor heat exchanger 4, and the indoor heat exchanger 4 exchanges heat with air in the heat exchange air duct 21 to perform refrigeration and heat dissipation on the air flowing through the indoor heat exchanger 4. The refrigerant after flowing through the heat exchanger flows to the outlet pipe 42, and the opening or closing of the refrigerant, the second pipe section 32 and the third pipe section 33 is controlled through the three-way valve 3, so that the flow of the refrigerant flowing through the fresh air heat exchanger 9 is controlled, and the heat exchange efficiency of the fresh air heat exchanger 9 on the fresh air flowing through the fresh air module is controlled according to different scenes.

In this embodiment, new trend module includes: the volute 10 is arranged in the housing 1, the volute 10 comprises a first shell 101 and a second shell 102, and the first shell 101 and the second shell 102 are connected to form the integral volute 10.

The volute 10 is provided with an air suction port 1011 and an air exhaust port 1012, the air suction port 1011 is disposed on a side surface of the first casing 101, and the air exhaust port 1012 is communicated with the fresh air port to communicate with the indoor space. The volute 10 is provided with a fan and a driving motor, an output shaft of the driving motor is connected with the fan, the driving motor controls the fan to rotate, indoor or outdoor air is sucked from an air suction port 1011 of the volute 10 and is discharged into an indoor space through an air outlet 1012 of the volute 10.

The volute casing 10 is further provided with a flow guide channel 103, and the flow guide channel 103 can be integrally formed with the volute casing 10. The air outlet end of the diversion channel 103 is the air outlet 1012 of the volute 10. The water conservancy diversion passageway 103 can set up with first shell 101 integrated into one piece alone, also can set up with second shell 102 integrated into one piece alone, and water conservancy diversion passageway 103 in this embodiment sets up with first shell 101 integrated into one piece alone to reduce the concatenation between the part, thereby reduce the gap of concatenation department, avoid the new trend to reveal, improve the air output of new trend.

The fresh air shell 104 is provided with a fresh air inlet 1041 and a fresh air outlet 1042. The fresh air inlet 1041 is used for introducing fresh air from the outside, and the fresh air outlet 1042 is used for introducing the fresh air introduced from the outside into the volute 10.

In this embodiment, the fresh air outlet 1042 is disposed at a connection position of the fresh air casing 104 and the volute 10, wherein the fresh air outlet 1042 of the fresh air casing 104 is connected to the air suction opening 1011 of the first casing 101, so that air entering the fresh air casing 104 from the fresh air inlet 1041 passes through the fresh air outlet 1042 and enters the volute 10 from the air suction opening 1011, and enters a room from the air outlet 1012 under the driving of the fan 93 in the volute 10.

In this embodiment, the fresh air casing 104 is further provided with a first gap, the first casing 101 is further provided with a second gap, after the fresh air casing 104 is connected with the first casing 101, the first gap and the second gap are connected to form a purification opening 105, and the purification screen frame 107 is inserted between the fresh air casing 104 and the scroll casing 10 through the purification opening 105.

Purify screen frame 107 at least part setting in new trend shell 104, purify screen frame 107 including purifying frame and filter screen, the filter screen setting is on purifying the frame, the filter screen is used for carrying out filtration purification to the new trend, avoids impurity and the flocculus of adulteration in the new trend to get into indoorly along with the air through spiral case 10.

In this embodiment, the heat exchange air duct 21 on the base 2 is provided with a heat exchange inlet 22 and a heat exchange outlet 23, the heat exchange inlet 22 corresponds to the air inlet 11 of the casing 1, and the heat exchange outlet 23 corresponds to the air outlet 12 of the casing 1. The base 2 is further provided with an accommodating cavity 24, the accommodating cavity 24 is an open cavity provided with an opening, and the opening of the accommodating cavity 24 is arranged between the heat exchange inlet 22 and the heat exchange outlet 23. It can be provided that one of the chamber walls of the accommodating chamber 24 is a side wall forming the heat exchange outlet 23 of the base 2.

A fresh air pipeline 5 is arranged in the accommodating cavity 24, and one end of the fresh air pipeline 5 is communicated with an air outlet 1012 of the volute 10, so that fresh air is guided into the fresh air pipeline 5 through the fresh air module.

In this embodiment, be provided with the fresh air mouth on the casing 1, be provided with fresh air port 53 on the fresh air pipeline 5, fresh air port 53 corresponds the intercommunication with the fresh air mouth. Fresh air vent 53 department is provided with fresh air plate 51, and fresh air plate 51 rotates to be connected in fresh air vent 53 department, and wherein one end of fresh air plate 51 is connected with the motor, thereby rotates drive fresh air plate 51 through electrical apparatus at least part and opens or close fresh air vent 53. When fresh air port 53 is opened, make the new trend can flow out to indoor by fresh air port 53. Fresh air port 53 sets up the front side at the air conditioning indoor set, has improved the visualization after the fresh air is opened, and the user can more audio-visual open mode who sees the fresh air. Meanwhile, the area of the front side of the shell 1 of the indoor unit of the air conditioner is larger, so that the opening of the fresh air through hole 53 can be larger, the air outlet area of fresh air is increased, and the air outlet quantity of the fresh air is increased.

In this embodiment, new trend aerofoil 51 still has the wind-guiding function, after new trend aerofoil 51 rotates to open new trend opening 53, accessible new trend aerofoil 51 pivoted angle is different to be made by the new trend air guide flow that new trend opening 53 flows to mix with the indoor air after the heat transfer that air outlet 12 department flowed, the effect of realization mixed wind, thereby realize that the air after the indoor heat transfer mixes rapidly with the new trend of outdoor entering, can change indoor temperature fast, make indoor whole temperature distribution even.

In the present embodiment, when the fresh air duct 5 is disposed in the accommodating cavity 24, the opening of the accommodating cavity 24 is disposed toward the front side of the casing 1, and at least a part of the casing 1 is covered on the front sides of the base 2 and the fresh air duct 5, so that at least a part of the fresh air duct 5 is disposed between the casing 1 and the base 2. The base 2 is provided with a positioning column 241, the fresh air pipeline 5 is provided with a first positioning hole 52 penetrating through the fresh air pipeline 5, and the first positioning hole 52 is arranged corresponding to the positioning column 241. The housing 1 is provided with a second positioning hole 13 corresponding to the first positioning hole 52. The fresh air duct 5 is installed in the accommodating cavity 24, and the positioning column 241 sequentially penetrates through the first positioning hole 52 and the second positioning hole 13 to fixedly install the fresh air duct 5 in the accommodating cavity 24, so as to prevent the fresh air duct 5 from being separated from the accommodating cavity 24.

A front panel 25 is arranged in front of the shell 1, one end of the front panel 25 is arranged close to the air inlet 11, and the other end of the front panel 25 is arranged close to the air outlet 12, so that on one hand, the front panel 25 can shield the internal structures of the indoor air conditioner, such as the fresh air pipeline 5, the base 2, the indoor heat exchanger 4 and the like, between the air inlet 11 and the air outlet 12, and the aesthetic effect of the indoor air conditioner is improved; on the other hand, the edge of the front panel 25 can be prevented from being arranged at a position corresponding to the heat exchange air duct 21, heat exchange air or fresh air is prevented from overflowing from the edge of the front panel 25, and reduction of heat exchange efficiency is avoided.

In this embodiment, the front panel 25 is provided with an avoidance notch 251, and the avoidance notch 251 is provided corresponding to the fresh air vent 53. Dodge the setting of breach 251 for when new trend aerofoil 51 rotates, can not blockked by casing 1 and rotate, do benefit to opening and closing of new trend opening 53, can also improve the pleasing to the eye effect of air conditioning indoor set simultaneously.

In this embodiment, a wind guide rod 61 is disposed in the heat exchange wind channel 21 and near the wind outlet 12, a wind guide blade 63 is disposed on the wind guide rod 61, and the wind guide blade 63 is driven to swing by the left and right swing of the wind guide rod 61, so as to change the left and right wind outlet direction of the air at the wind outlet 12. An end motor is arranged at the end part of the air guide plate, and an output shaft of the end motor is connected with the air guide rod 61, so that the air guide rod 61 is driven to swing left and right through the rotation of the output shaft of the end motor, and the air outlet direction at the air outlet 12 in the left and right direction is changed through the swing of the air guide rod 61 and the air guide blades 63.

In this embodiment, a main air deflector 7 is disposed outside the air outlet 12 of the housing 1, and the main air deflector 7 includes a main panel 71 and an extension arm 72. The two extension arms 72 are respectively disposed at two sides of the main panel 71, and the two extension arms 72 extend to the heat exchanging air duct 21 and are rotatably connected to the inner wall of the heat exchanging air duct 21.

The main air deflector 7 can close or open the air outlet 12 by rotating, and when the main air deflector 7 closes the air outlet 12, the main air deflector 7 shields the structure inside the air outlet 12, thereby improving the aesthetic effect of the air-conditioning indoor unit.

When the main air deflector 7 is opened, any air flow in the air after heat exchange blown out from the air outlet 12, the fresh air blown out from the fresh air inlet and the mixed air of the fresh air and the air after passing through the heat exchange channel is blown onto the main air deflector 7, the air deflector enables the direction of the air flow to be changed, any air flow after the direction is changed is mixed with the fresh air blown out from the fresh air inlet and/or the air after heat exchange blown out from the air outlet 12 again, and therefore multiple air mixing is achieved, and the air mixing effect of the fresh air and the indoor air is improved.

In this embodiment, the heat exchange outlet 23 of the base 2 is provided with a secondary air guiding plate 8, and the secondary air guiding plate 8 includes a first rotating shaft 81 and an air guiding sheet 83. The first rotating shafts 81 are cylindrical, the first rotating shafts 81 are respectively arranged at two ends of the air guiding sheets 83, and the two first rotating shafts 81 are rotatably connected to the inner wall of the base 2 forming the heat exchange air duct 21.

One of the first rotating shafts 81 is connected to an output end of the motor, and the motor drives the first rotating shaft 81 to rotate, so as to drive the auxiliary air deflector 8 to rotate, thereby changing an air flow outlet direction of the air flow flowing out from the air outlet 12 in the up-down direction. Thereby be convenient for through the air-out direction of changing the air current upper and lower direction with the air water conservancy diversion that air outlet 12 department flows to leading air deflector 7 with reinforcing effect of mixing wind, or with the air water conservancy diversion that air outlet 12 department flows to the new trend that flows with the fresh air inlet and mix to reinforcing effect of mixing wind.

Stability receives the influence when the size overlength of vice aviation baffle 8 can make the rotation, stability when rotating for improving vice aviation baffle 8, be provided with second pivot 82 at the middle part of aviation baffle 83, be provided with mounting 242 on the inner wall of the formation heat transfer wind channel 21 of base 2, second pivot 82 rotates with mounting 242 and is connected, second pivot 82 and the coaxial setting of the rotation axis of first pivot 81, make when vice aviation baffle 8 rotates around same rotation axis rotatory, so that improve the stability when vice aviation baffle 8 rotates.

In this embodiment, the first rotating shaft 81, the second rotating shaft 82 and the air guiding sheet 83 are integrally formed to form the secondary air guiding plate 8.

In this embodiment, the fresh air shell 104 is disposed near the indoor heat exchanger 4 relative to the scroll case 10, the fresh air heat exchanger 9 is disposed between the purification frame 107 and the fresh air shell 104, and the fresh air heat exchanger 9 is disposed near the indoor heat exchanger 4 relative to the purification frame 107.

The fresh air shell 104 is provided with at least two through holes, the refrigerant inlet pipe 91 of the fresh air heat exchanger 9 is connected to the third pipe section 33 of the three-way valve 3 through one of the through holes penetrating from the inside of the fresh air shell 104, and the refrigerant outlet pipe 92 of the fresh air heat exchanger 9 is connected to the outlet header pipe 43 through the other one of the through holes penetrating from the inside of the fresh air shell 104. Sealing rings 108 are arranged on the inner side of the perforated fresh air shell 104 and the outer side of the fresh air shell 104 to improve the sealing performance of the fresh air shell 104, so that fresh air is prevented from overflowing the fresh air shell 104 through the perforations. It is possible to provide that the sealing rings 108 are all rubber sealing rings 108.

Referring to fig. 12 to 16, the three-way valve 3 further includes a knob 34, the knob 34 is disposed at a communication position of the first pipe section 31, the second pipe section 32 and the third pipe section 33, a three-way pipeline 35 is disposed inside the knob 34, three pipelines of the three-way pipeline 35 are respectively disposed corresponding to the first pipe section 31, the second pipe section 32 and the third pipe section 33, the three-way pipeline 35 includes three pipelines, and two of the three pipelines of the three-way pipeline 35 can communicate the first pipe section 31, the second pipe section 32 and the third pipe section 33 of the three-way valve 3 with each other.

A pipeline included angle is formed between two adjacent pipelines in the three-way pipeline 35, the included angles of at least two pipelines are the same, and the included angle of the pipelines is not equal to 120 degrees.

The control knob 34 is rotated to control the three-way pipeline 35 to be communicated with or separated from the second pipe section 32 and the third pipe section 33 of the three-way valve 3, so as to control the second pipe section 32 and the third pipe section 33 to be opened or closed, and further change the flow path of the refrigerant.

In this embodiment, taking an included angle of 90 ° as an example, when the temperature difference between the inside and the outside is large, the three-way pipeline 35 is respectively and correspondingly communicated with the first pipe segment 31, the second pipe segment 32 and the third pipe segment 33, the first pipe segment 31, the second pipe segment 32 and the third pipe segment 33 of the three-way valve 3 are all in an open state, a part of the refrigerant flowing out of the indoor heat exchanger 4 enters the fresh air heat exchanger 9 through the refrigerant inlet pipe 91 via the third pipe segment 33, and then flows into the outlet header pipe 43 of the indoor heat exchanger 4 through the fresh air heat exchanger 9 and then flows out of the refrigerant outlet pipe 92; the other part merges via the second pipe section 32 directly into the outlet manifold 43. Fresh air is precooled or preheated by the fresh air heat exchanger 9 and then sent into the room, so that the temperature of the fresh air is consistent with the room temperature.

When the indoor and outdoor temperature difference is large, a user can obviously feel discomfort caused by the temperature difference, the control knob 34 rotates forwards by 90 degrees, at the moment, the knob 34 cuts off a communication path between the second pipe section 32 and the outlet header pipe 43, the first pipe section 31 is communicated with the third pipe section 33, all refrigerants enter the fresh air heat exchanger 9 through the refrigerant inlet pipe 91 through the third pipe section 33 and are converged into the outlet header pipe 43 of the indoor heat exchanger 4 through the refrigerant outlet pipe 92 after passing through the fresh air heat exchanger 9, the heat exchange efficiency of the fresh air heat exchanger 9 is improved, and fresh air is precooled or preheated through the fresh air heat exchanger 9 and then is sent into the room, so that the temperature of the fresh air and the room temperature tend to be consistent.

When the indoor and outdoor temperature difference is small, a user cannot obviously feel the indoor and outdoor temperature difference, the control knob 34 rotates in the reverse direction by 90 degrees, at the moment, the knob 34 cuts off the communication path between the third pipe section 33 and the refrigerant inlet pipe 91, the first pipe section 31 is communicated with the second pipe section 32, all the refrigerants enter the outlet header pipe 43 through the second pipe section 32, the fresh air heat exchanger 9 does not work, and fresh air can directly enter the room through the fresh air module; when the indoor and outdoor temperature difference is small but can be slightly sensed by a user, the rotary knob 34 cuts off the communication path between the third pipe section 33 and the refrigerant inlet pipe 91, and the fresh air heat exchanger 9 does not work. Simultaneously, the rotation through main aviation baffle 7, vice aviation baffle 8 and new trend aviation baffle 51 mixes the wind with the air after the heat transfer in heat transfer wind channel 21 to reduce the difference in temperature of new trend and indoor wind, increase air supply scope, promote the efficiency of taking a breath, reinforcing user experience.

In this embodiment, when heat exchange fan stall, the heat transfer of indoor air is not carried out in the heat transfer wind channel 21, but the new trend module independent operation drives the fan through driving motor and rotates, and outdoor new trend flows through new trend module and new trend pipeline 5 in proper order to flow out to the indoor space by the new trend mouth, in order to realize introducing outdoor fresh air, realize the new trend function.

The fresh air inlet 1041 of the fresh air shell 104 is connected with an air inlet bent pipe 106, the other end of the air inlet bent pipe 106 is connected with a fresh air pipe, the fresh air pipe penetrates through the wall body and extends to the outdoor space, the fresh air pipe is used for introducing fresh air in the outdoor space into the fresh air shell 104 through an air suction pipe and the air inlet bent pipe 106, pre-cooled or pre-heated through a fresh air heat exchanger 9, then penetrates through a purification net frame 107, flows into the fresh air pipeline 5 through a diversion channel 103, and finally flows out of the fresh air port to the indoor space so as to achieve indoor fresh air exchange.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of indicated technical features. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An indoor unit of an air conditioner, comprising:

a housing provided with a fresh air port;

the indoor heat exchanger is arranged in the shell and is provided with an inlet pipe, an outlet pipe and an outlet main pipe, and a refrigerant enters the heat exchanger from the inlet pipe and flows to the outlet main pipe through the outlet pipe;

the three-way valve comprises a first pipe section, a second pipe section and a third pipe section, the first pipe section is connected with the outlet pipe of the indoor heat exchanger, and the second pipe section is connected with the outlet manifold;

2. An indoor unit of an air conditioner according to claim 1, wherein the three-way valve further includes a knob, a three-way pipe is provided inside the knob, three pipes of the three-way pipe are respectively provided corresponding to the first pipe section, the second pipe section, and the third pipe section, and the rotation is rotated to control the communication or the separation of the three-way pipe with the second pipe section and the third pipe section of the three-way valve.

3. An indoor unit of an air conditioner according to claim 2, wherein a pipe included angle is formed between two adjacent pipes in the three-way pipe, at least two pipe included angles are the same and the pipe included angle is not equal to 120 °.

4. An indoor unit of an air conditioner according to claim 1, wherein a purification mesh frame is provided in the fresh air module, and the fresh air heat exchanger is provided close to the indoor heat exchanger with respect to the purification mesh frame.

5. The indoor unit of claim 4, wherein the fresh air module comprises a fresh air casing and a volute casing, the fresh air casing is disposed close to the indoor heat exchanger relative to the volute casing, the purification screen frame is at least partially disposed in the fresh air casing, perforations are disposed on the fresh air casing, the refrigerant inlet pipe of the fresh air heat exchanger is connected to the third pipe section of the three-way valve through one of the perforations disposed inside the fresh air casing, and the refrigerant outlet pipe of the fresh air heat exchanger is connected to the outlet header pipe through the other of the perforations disposed inside the fresh air casing.

6. An indoor unit of an air conditioner according to claim 5, wherein sealing rings are provided on both of the inner side of the perforated fresh air casing and the outer side of the fresh air casing.

7. The indoor unit of claim 1, wherein the casing is provided with an air outlet and an air inlet, the casing is provided with a base, the base is internally provided with a heat exchange air duct, the heat exchange air duct communicates the air inlet and the air outlet, indoor air enters from the air inlet and is blown out from the air outlet through the heat exchange air duct, the base is provided with an accommodating cavity, the accommodating cavity is provided with a fresh air pipeline, the fresh air pipeline is communicated with the fresh air module, the fresh air pipeline is provided with a fresh air port, and the fresh air port is arranged corresponding to the fresh air port.

8. An indoor unit of an air conditioner as claimed in claim 7, wherein a fresh air vent is rotatably connected to the fresh air vent, and the fresh air vent is rotated to at least partially open or close the fresh air vent.

9. An indoor unit of an air conditioner according to claim 7, wherein the heat exchange air duct has a heat exchange inlet and a heat exchange outlet, the heat exchange inlet corresponds to the air inlet, and the heat exchange outlet corresponds to the air outlet.

10. An indoor unit of an air conditioner as claimed in claim 9, wherein an auxiliary air guide plate is provided at the heat exchanging port, the auxiliary air guide plate includes a first rotating shaft and an air guide plate, two ends of the air guide plate are respectively connected to the first rotating shaft, and the first rotating shaft is rotatably connected to an inner wall of the heat exchanging air duct.