WO2019085731A1

WO2019085731A1 - Wall-mounted indoor unit of air conditioner

Info

Publication number: WO2019085731A1
Application number: PCT/CN2018/110274
Authority: WO
Inventors: 李英舒; 吴丽琴; 王永涛
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2017-10-31
Filing date: 2018-10-15
Publication date: 2019-05-09
Also published as: CN107860060A

Abstract

A wall-mounted indoor unit (100) of an air conditioner comprises a housing (110), a heat exchanger (140), an airblast component (120), a first air supply assembly, and a second air supply assembly. The housing (110) is provided with a cover piece (112) and a front panel (114). Air inlets (116) are respectively formed in two sides of the housing piece (112), and a long elliptic air supply opening (117) is formed in the lower part of the front panel (114). The heat exchanger (140) is disposed at a position near the front panel (114) in the housing (110). The front panel (114) at the position thereof is in communication with the air inlets (116). The airblast component (120) is disposed in the air supply opening (117), and is used for forwards spraying a heat exchange airflow in the airblast component (120) and driving environmental air to be forwards conveyed out. The first air supply assembly and the second air supply assembly are disposed behind the heat exchanger (140) in a transversely spaced manner and are used for generating a heat exchange airflow that enters from the air inlets (116) on the two sides and is supplied from one side of the airblast component (120) after the airflow experiences heat exchange with the heat exchanger (140).

Description

Wall-mounted air conditioner indoor unit

Technical field

The present invention relates to an air conditioner, and more particularly to a wall-mounted air conditioner indoor unit.

Background technique

The air conditioner is one of the necessary household appliances. As the user's requirements for comfort and health are getting higher and higher, the air supply method of the traditional air conditioner is to send the cold air into the room, and slowly convect the air with the surrounding air. Slower, can not give people a feeling of rapid cooling, and the air blower of the indoor unit blows directly to the person, which will adversely affect the health of the user, and is prone to air conditioning disease.

In response to this problem, in the prior art, an indoor unit that ejects the air outlet with a gentle air supply is provided, which uses a small air outlet to drive the surrounding air to be blown, so that the air after the heat exchange is mixed with the surrounding air, but the air outlet is sprayed. The requirements for the structure are high, so that the jet outlets are mostly used in cabinet-type indoor units with more space. In order to meet the structural requirements of the jet vent, it is often necessary to set the casing to a circular shape or other irregular shape in order to meet the structural requirements of the jet vent, on the one hand, the user's usage habits and the existing type of the hanging indoor unit. There is a gap in cognition, which is not easily accepted by users. On the other hand, it takes up a lot of space, which brings troubles for the installation of the hanging indoor unit. Therefore, the hanging indoor unit that uses the air outlet can not meet the user's use requirements.

Summary of the invention

SUMMARY OF THE INVENTION One object of the present invention is to provide a wall-mounted air conditioner indoor unit with a gentle heat transfer speed.

A further object of the present invention is to make the indoor unit of the wall-mounted air conditioner compact and conform to the user's usage habits.

Another further object of the present invention is to make the airflow ejected from the air jet components of the indoor unit of the wall-mounted air conditioner uniform.

In particular, the present invention provides a wall-mounted air conditioner indoor unit, which includes:

a casing, the casing comprises a casing and a front panel disposed in front of the casing, the air inlet is respectively opened on two sides of the casing, and the air outlet of the oblong is opened in a lower part of the front panel;

a heat exchanger disposed at a position inside the casing close to the front panel, the position of which is connected to the air inlet;

The air-jet component is disposed in the air supply opening, and an air-jet opening is formed on the inner peripheral wall thereof, and the air-jet opening is used for jetting the heat exchange airflow in the air-jet component forward, and driving the ambient air in the air-venting hole defined by the inner peripheral wall of the air-jet component Forward, the air vent is connected to the surrounding environment upstream of the air supply direction;

The first air supply assembly and the second air supply assembly are laterally spaced apart from the rear of the heat exchanger, wherein the first air supply assembly is configured to enter from the air inlet of one side, and exchange heat with the heat exchanger to supply the air injection unit. a first heat exchange gas stream; the second air supply assembly is configured to generate a second heat exchange gas stream that enters the air inlet from the other side and is heat exchanged with the heat exchanger.

Optionally, the air-jet component comprises an annular inner wall and an annular outer wall, wherein the inner side of the annular inner wall defines a ventilation hole, the annular outer wall and the annular inner wall together define a supply air chamber, and the edge of the annular outer wall that meets the annular inner wall forms an air outlet, the annular outer wall a first air inlet and a second air inlet for receiving a heat exchange air flow are respectively disposed at both ends of the lateral direction, and

The first air supply assembly is connected to the first air inlet to supply the first heat exchange airflow to the air supply chamber through the first air inlet, and the second air supply assembly is connected to the second air inlet to pass the second air inlet The gas port supplies a second heat exchange gas flow to the air supply chamber.

Optionally, the rear side edge of the annular inner wall is recessed toward the interior of the air supply chamber, and the annular outer wall has an outward flange at a position opposite the rear side edge of the annular inner wall such that the annular outer wall and the rear side edge of the annular inner wall The gap between them forms a jet; and

The annular inner wall extends forwardly from the rear side edge thereof to form a Cohenda surface which continuously expands outward; the portion of the annular outer wall located at the rear side of the air injection member has a spiral shape, so that the air flow of the air supply chamber is sprayed from the air outlet along the annular outer wall After exiting, the Coanda surface formed along the inner wall of the ring is forwarded and drives the ambient air behind the air outlet.

Optionally, the air jet component comprises two spaced horizontal sections and two arcuate sections connecting the two horizontal sections such that the air jet component integrally forms an oblong shape adapted to the air supply opening, wherein the two arcuate sections A first inlet port and a second inlet port are respectively defined in the annular outer wall of the segment.

Optionally, the first air supply assembly comprises: a first centrifugal fan and a first air guiding component, the first centrifugal fan is used as a power source of the first heat exchange airflow, and the first air guiding component is connected to the exhaust of the first centrifugal fan Between the port and the first air inlet, the airflow discharged by the first centrifugal fan is guided into the air supply chamber; the second air supply assembly comprises: a second centrifugal fan and a second air guiding component, and the second centrifugal fan is used as the second a power source of the heat exchange airflow, the second air guiding component is connected between the exhaust port of the second centrifugal fan and the second air inlet to guide the airflow discharged by the second centrifugal fan into the air supply chamber.

Optionally, the indoor unit of the wall-mounted air conditioner further includes: a partition, the center of which is recessed rearward to define a heat exchanger accommodating cavity for arranging the heat exchanger with the front panel, and two of the partitions The side forms a rearward cuff, and the air inlet is opened at a position opposite to the flange so that the flange of the partition and the side wall of the casing define an air inlet passage from the air inlet to the heat exchanger receiving cavity.

Optionally, the middle portion of the partition plate is further provided with a first through hole and a second through hole which are laterally spaced apart; and the impeller and the volute of the first centrifugal fan are disposed in the space defined by the partition plate and the cover, the first centrifugation The exhaust port of the volute of the fan faces the side wall of the casing on the side of the first intake port, and the exhaust port of the volute of the first centrifugal fan is connected to the intake port of the first air guiding member, and is first The gas collecting port of the centrifugal fan passes through the first through hole to take in air from the heat exchanger accommodating cavity to form a first heat exchange air flow; the impeller and the volute of the second centrifugal fan are also disposed in the space defined by the partition plate and the casing The exhaust port of the volute of the second centrifugal fan faces the side wall of the casing on the side of the second intake port, and the exhaust port of the volute of the second centrifugal fan is connected with the intake port of the second air guiding member. And the gas collecting port of the second centrifugal fan passes through the second through hole to take in air from the heat exchanger accommodating cavity to form a second heat exchange gas stream.

Optionally, the first air guiding component comprises: a first drainage section having an air inlet of the first air guiding component, and at least a part of the first drainage section is spirally shaped to guide the airflow direction of the first centrifugal fan The first air supply section is connected to the first drainage section, and defines a first air collection chamber to receive the airflow discharged by the first centrifugal fan, and the first air supply section is opened with the first air intake section. a first exhaust port connected to the mouth to supply airflow from the first air collection chamber to the air supply chamber;

The second air guiding member includes: a second drainage section having an air inlet of the second air guiding member, and at least a portion of the second drainage section is spirally shaped to guide the airflow direction of the second centrifugal fan to be downward; The second air supply section is connected to the second drainage section, and defines a second air collection chamber to receive the airflow discharged by the second centrifugal fan, and the second air supply section is connected to the second air inlet. The second exhaust port is configured to supply the airflow of the second air collection chamber to the air supply chamber.

Optionally, the first drainage section is tapered from the air inlet of the first air guiding component in the airflow direction, and the first air supply section forms a volute shape along the air outlet direction of the first drainage section, thereby reducing the first heat exchange airflow. Wind resistance in the first plenum; and

The second drainage section is tapered from the air inlet of the second air guiding component in the airflow direction, and the second air supply section forms a volute shape along the air outlet direction of the second drainage section, reducing the second heat exchange airflow in the second gas gathering Wind resistance inside the cavity.

Optionally, the cover and the lower portion of the front panel form a front and rear air supply opening, and the rear side of the cover forms a position of the air supply opening, so that the air circulation area is behind the air supply opening.

In the indoor unit of the wall-mounted air conditioner of the present invention, an oblong air supply opening is arranged under the housing for arranging the annular air-jet component, so that the airflow exchanged by the heat exchanger is ejected from the air outlet of the air-jet component, and is sucked. The ambient air around the air supply port is mixed with the heat exchange airflow with a sharp temperature difference in the surrounding environment to ensure that the airflow sent out is soft and the feeling of blowing to the human body is more comfortable. On the one hand, the air supply volume is increased, and the flow of indoor air is accelerated. The indoor temperature of the indoor unit is uniformly lowered, and the air outlet of the indoor unit of the wall-mounted air conditioner of the present invention is disposed under the casing, and has an overall long round racetrack shape. The overall structure is similar to the existing conventional hanging indoor unit, and is easily used by users. Approved, in line with user habits, and easy to replace the existing traditional hanging indoor unit, flexible installation location.

Further, in the indoor unit of the wall-mounted air conditioner of the present invention, the air inlets are respectively opened on both sides of the casing, and the outside air enters the heat exchanger accommodating chamber where the heat exchanger is located from both sides, thereby ensuring the smooth flow of the heat exchange airflow and avoiding The problem of falling ash at the upper opening further makes the structure of the indoor unit more compact, and the air before and after the heat exchange is separated by the partition plate, and the overall appearance of the casing is beautiful. Moreover, the direction of the incoming air is two sides, and the direction of the air supply is forward, so that the indoor airflow is formed into a cycle, and the heat exchange efficiency is higher.

Further, in the wall-mounted indoor unit of the present invention, two air supply assemblies are disposed inside the casing, respectively, to the air inlets (first air inlet and second air inlet) which are opened on both sides of the air injection member The air supply chamber provides the airflow after the heat exchange, and finally is ejected from the air outlet, and the two air supply components cooperate with each other to jointly supply air, so that the airflow in the air supply chamber is more uniform, and the air outlets are uniformly distributed throughout the air outlet. It can ensure the uniform driving of the surrounding air, further improving the stability and uniformity of the air supply, and further improving the user's feeling of use. In addition, under some special working conditions, the two air supply components can cooperate with each other to jointly supply air, and can be independently controlled according to working conditions, for example, selecting the air according to the same air volume at the same time; separately supplying air according to different air volumes; The wind, so that the indoor unit air outlet meets the requirements of these different working conditions, the control is more flexible and meets the different requirements of the user.

Further, the indoor unit of the wall-mounted air conditioner of the present invention has a compact internal structure and makes full use of the space inside the casing, so that the indoor unit of the wall-mounted air conditioner can be made thinner.

Furthermore, the indoor unit of the wall-mounted air conditioner of the present invention improves the position and structure of components such as a heat exchanger, a centrifugal fan, a wind guiding member, etc., on the one hand, reduces the occupied space, and on the other hand, can also reduce The air supply wind resistance.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention will be described in detail by way of example and not limitation. The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

1 is a schematic external view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

2 is a schematic exploded view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

3 is a schematic view of a jetting member in an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;

Figure 4 is a front elevational view of the air injection component shown in Figure 3;

Figure 5 is a schematic cross-sectional flow diagram of the air flow taken along line A-A of Figure 4;

Figure 6 is a schematic view of internal components of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

Fig. 7 is a structural schematic view showing the air supply of the first air supply unit and the second air supply unit to the air injection unit in the indoor unit of the wall-mounted air conditioner according to an embodiment of the present invention.

Detailed ways

The embodiment provides a wall-mounted air conditioner indoor unit 100. For convenience of description, the “upper”, “lower”, “front”, “rear”, “top” and “bottom” directions mentioned in the specification are in accordance with the wall-mounted air conditioner. The spatial positional relationship in the normal operation state of the indoor unit 100 is limited. For example, the side facing the user of the wall-mounted air conditioner indoor unit 100 is the front side, and the side abutting against the mounting position is the rear side.

1 is a schematic external view of a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention, and FIG. 2 is a schematic exploded view of a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention. The wall-mounted air conditioner indoor unit 100 may generally include a housing 110, a jetting member 120, a heat exchanger 140, a first air blowing assembly, and a second air blowing assembly. The housing 110 may include a cover 112 and a front panel 114 disposed in front of the cover 112. The casing 112 is formed by a top wall, a side wall, and a back, which together define a space for accommodating internal components of the wall-mounted air conditioner indoor unit 100, and the front panel 114 is disposed in front of the casing 112, thereby closing the inside of the casing 112. space. An air inlet 116 and an air supply opening 117 are defined in the housing 110. The air blowing port 117 has an oblong shape and can be disposed at a lower portion of the front panel 114 and communicates with the surrounding environment upstream of the air blowing direction.

The air inlets 116 are respectively formed on the side walls of the casings 112, and the external ambient air can enter the interior of the indoor unit 100 from both sides, so that the heat exchangers can be smoothly entered into the heat exchanger accommodating chamber of the heat exchanger 140 to ensure heat exchange. The air flow is unobstructed, and the air inlet 116 may be formed by a grill, a mesh, or the like. The arrangement of the air inlet 116 can ensure the integrity of the appearance and improve the aesthetics of the body. Compared with the prior art, the air inlet is generally disposed at the top, and the dust easily falls into the indoor unit in an idle state. The indoor unit 100 of the present embodiment enters the air from both sides, and the air inlet area is large, and the fall is avoided. Gray problem.

In some preferred embodiments, the air supply opening 117 can be disposed through the lower portion of the housing 110 (the outer side of the cover 112 and the front panel 114 are open with an oblong through hole), thereby forming a front and rear air supply opening 117. . The position of the rear side of the casing 112 forming the air blowing port 117 is recessed forward so that the air flow area 118 is provided behind the air blowing port 117, so that the inside of the air blowing port 117 communicates with the air flow area 118 for the discharge of the air injection part 120. The hot gas can be sucked from the air circulation area 118 to be mixed, and the temperature difference between the mixed air flow and the surrounding environment is small, softer, and the air supply amount is larger, thereby accelerating the flow of the indoor air.

Further, the air injection member 120 is disposed in the air blowing port 117, for example, at a position in front of the lower portion of the casing 110, and the casing 110 is open to the surroundings of the air-jet member 120, that is, upstream of the air blowing direction. In the hollowed out area, the heat exchange gas for the jetting member 120 can be mixed by sucking the ambient air through the hollowed out area. In this case, only the air blowing port 117 is provided on the front panel 114, and at the bottom of the casing 112. The rear side of the wall forms the above hollowed out area.

The heat exchanger 140 is disposed at a position inside the casing 110 close to the front panel 114, that is, at a front portion of the inner space of the casing 110. The heat exchanger 140 exchanges heat with the air flowing therethrough to change the temperature of the air flowing therethrough. The heat exchanger 140 is part of a refrigeration system, and the refrigeration system can be realized by a compression refrigeration cycle that utilizes a refrigerant in a compression phase change cycle of a compressor, a condenser, an evaporator, and a throttling device to achieve heat transfer. The refrigeration system can also be provided with a four-way valve to change the flow direction of the refrigerant, so that the indoor unit heat exchanger 140 alternately functions as an evaporator or a condenser to realize a cooling or heating function. Since the compression refrigeration cycle in the air conditioner is well known to those skilled in the art, the working principle and configuration thereof will not be described herein. The heat exchanger 140 is of a plate type and is disposed adjacent to the front panel 114 of the housing 110.

The air-jet member 120 is disposed in the air blowing port 117 and has an elliptical shape (or a racetrack shape) as a whole. The center of the air-jet member 120 defines a ventilation hole 123 that communicates with the surrounding environment upstream of the air blowing direction. The size and specifications of the air jet component 120 and its internal components can be set according to the air blowing capability of the first air blowing component and the second air blowing component.

3 is a schematic view of a jet member 120 in a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention, FIG. 4 is a front view of the air-jet member 120 shown in FIG. 3, and FIG. 5 is a cross-sectional line AA along FIG. A schematic cross-sectional view of the airflow flow taken. The air-jet member 120 includes an annular inner wall 121 and an annular outer wall 122. The annular inner wall 121 and the annular outer wall 122 together form the above-described oblong shape, and the inner side of the annular inner wall 121 is the exhaust hole 123. The edge of the annular outer wall 122 that is in contact with the annular inner wall 121 forms a gas jet port 124 for ejecting the airflow from the air supply chamber 125 forward and causing air at the rear of the air supply port 117 to be drawn through the air supply port 117.

The rear side edge 126 of the annular inner wall 121 is recessed toward the interior of the air supply chamber 125, and the position of the annular outer wall 122 opposite the rear side edge 126 of the annular inner wall 121 has an outward flange 127 such that the annular outer wall 122 and the annular inner wall 121 The gap between the rear side edges 126 forms a gas vent 124. The rear side edge 126 of the annular inner wall 121 recessed into the interior of the air supply chamber 125 may also have a function of guiding the airflow direction so that the airflow in the air supply chamber 125 is smoothly sent out from the air outlet 124.

The annular inner wall 121 extends forwardly from its rear side edge 126 to form a Coanda surface that continuously expands outward; and the portion of the annular outer wall 122 that is located on the rear side of the air injection component 120 is helically shaped such that the air flow along the air supply chamber 125 After the annular outer wall 122 is ejected from the air vent 124, the surface of the Coanda formed along the annular inner wall 121 is forwardly sent to drive the ambient air behind the air vent 117. The annular inner wall 121 extends forwardly and continuously expands outwardly and has an extended inclination angle of 5 to 15 degrees. The larger the inclination angle, the faster the airflow of the air outlet 124 is expanded, and after extensive testing, the extended inclination of the annular inner wall 121 The angle can be set between 6 and 10 degrees, which is more advantageous for mixing with ambient air in the venting opening 123.

The annular inner wall 121 and the annular outer wall 122 together define an annular air supply chamber 125 inside the air injection member 120. The lateral ends of the annular outer wall 122 are respectively provided with a first air supply for supplying airflow to the air supply chamber 125 via the heat exchanger 140. An air inlet 1291 and a second air inlet 1292.

In some alternative embodiments, the air-jet component 120 may be generally circular in shape, with the annular inner wall 121 and the annular outer wall 122 having two spaced horizontal sections 128 and two arcuate sections 129 connecting the two horizontal sections 128, respectively. The first air inlet 1291 and the second air inlet 1292 of the air jet component 120 are respectively disposed on the annular outer wall 122 of the two arc segments 129 for receiving the first air blowing component and/or the second sending The heat exchanged airflow provided by the wind assembly.

The aforementioned sections of annular inner wall 121 and annular outer wall 122 are formed from a plurality of joined components, and in some preferred embodiments, annular inner wall 121 and annular outer wall 122 may be formed from a unitary molded piece.

In some optional embodiments, a wind shield (not shown) may be disposed in the air supply chamber 125 to divide the air supply chamber 125 into two chambers, one of the chambers and the first air inlet 1291. The communication is for receiving the first heat exchange gas flow from the first air supply assembly, and the other chamber is in communication with the second air inlet 1292 for receiving the second heat exchange gas flow from the second air supply assembly. Thereby, it is possible to prevent the first air supply unit and the second air supply unit from interacting with each other. The first air supply component and the second air supply component can cooperate with each other to realize air supply. The two can be started at the same time and can be started separately. The working modes of the first air supply component and the second air supply component can include: the same wind speed Running, the two are operated at different wind speeds, the first air supply assembly is operated separately, the second air supply assembly is operated separately, the first air supply assembly and the second air supply assembly are alternately operated, thereby achieving an effect similar to the left and right swing winds, and The balance operation of the internal components of the indoor unit 100 is ensured.

The blast opening 124 can be a continuous annular groove. In some alternative embodiments, the blast opening 124 can also be formed on a portion of the annular inner wall 121 and the annular outer wall 122, or in a plurality of spaced sections. For example, the air vent 124 may be disposed only on the horizontal section 128 of the air blasting member 120 to make the air flow more uniform and to effectively illuminate the ambient air within the venting opening 123. In order to increase the jet velocity of the gas jet port 124, the width of the gas jet port 124 may be set to 1 to 3 mm. After a large number of tests, the width of the gas jet port 124 may preferably be set to about 2 mm, and the jet port 124 of this size width can ensure heat exchange. The jet velocity of the airflow can minimize the windage loss of the heat exchange airflow and reduce the noise. In Fig. 5, the solid arrow indicates the direction of the airflow of the ambient air, and the dotted arrow indicates the direction of the airflow of the heat exchange gas jetted from the air outlet 124.

In some preferred embodiments, the air-jet component 120 can also be driven by the motor and the transmission mechanism to achieve an overall up and down swing, adjust the air supply angle, and realize the swing air supply, thereby making the air outlet range wider.

The first air supply assembly and the second air supply assembly are disposed laterally spaced apart from the inside of the housing 110 at the rear of the heat exchanger 140, wherein the first air supply assembly and the second air supply assembly are disposed behind the inner space of the housing 110. a first air supply unit for generating a first heat exchange airflow that enters from the air inlet 116 and exchanges heat with the heat exchanger 140 and is supplied to the air supply chamber 125 through the first air inlet 1291; The air supply assembly is configured to generate a second heat exchange gas stream that enters from the other side air inlet 116 and exchanges heat with the heat exchanger 140 and is supplied to the air supply chamber 125 through the second air inlet 1292.

The first air supply assembly and the second air supply assembly are symmetrically disposed at the center of the heat exchanger 140, and the first air supply assembly and the second air supply assembly respectively reach the first air inlet 1291 and the second inlet on both sides of the air injection unit 120. Air port 1292 sends air.

The first air blowing assembly includes a first centrifugal fan 131 and a first air guiding member 136. The first centrifugal fan 131 serves as a power source for the first heat exchange airflow, and may be configured such that the ambient air enters from the air inlet 116 and exchanges heat with the heat exchanger 140, passes through the first centrifugal fan 131, and is discharged to the downstream of the airflow, and finally After entering the air supply chamber 125 through the first air inlet 1291, it is sent out of the indoor unit 100 through the air outlet 124. The first air guiding member 136 is connected between the exhaust port of the first centrifugal fan 131 and the first air inlet 1291 of the air injection component 120, and is configured to guide the airflow discharged from the first centrifugal fan 131 into the air supply chamber 125.

The second air blowing assembly includes a second centrifugal fan 151 and a second air guiding member 156. The second centrifugal fan 151 serves as a power source for the second heat exchange airflow, and may be configured such that the ambient air enters from the air inlet 116 and exchanges heat with the heat exchanger 140, passes through the second centrifugal fan 151, and is discharged downstream of the airflow, and finally After entering the air supply chamber 125 through the second intake port 1292, the air injection member 120 is sent out of the indoor unit 100. The second air guiding member 156 is connected between the exhaust port of the second centrifugal fan 151 and the second air inlet 1292 of the air injection component 120, and is configured to guide the airflow discharged from the second centrifugal fan 151 into the air supply chamber 125.

Figure 6 is a schematic illustration of internal components of a wall-mounted air conditioner indoor unit 100 in accordance with one embodiment of the present invention. The interior of the wall-mounted air conditioner indoor unit 100 further includes a partition 143 for isolating the airflow before and after the heat exchange. The center of the partition 143 is recessed rearward to define a heat exchanger accommodating cavity for arranging the heat exchanger 140 with the front panel 114, and both sides of the partition 143 form a rearward flange 1433. The tuyere 116 is located at a position opposite the flange 1433 such that the flange 1433 of the partition 143 and the side wall of the casing 112 define an air inlet passage from the air inlet 116 to the heat exchanger receiving chamber. The heat exchanger 140 is disposed within the heat exchanger receiving cavity.

After the outside air enters from the air inlets 116 on both sides, the space defined by the flanges 1433 advances into the heat exchanger accommodating chamber to exchange heat with the heat exchanger 140.

The air inlet 116 is only in communication with the heat exchanger accommodating chamber, and may be formed by one or more grids such that a portion of the outside air laterally enters the heat exchanger accommodating chamber from the side wall to exchange heat with the heat exchanger 140. The area of the air inlet 116 is enlarged, and the heat exchange airflow is improved; on the other hand, the air is supplied to the heat exchanger accommodating chamber from both sides, and the heat exchange balance of the heat exchanger 140 can be ensured.

The first through hole 145 and the second through hole 146 are disposed in the center of the partition plate 143. The first through hole 145 passes through the first air collecting port 132 of the first centrifugal fan 131, and the second through hole 146 is provided to the second centrifugal fan 151. The second gas collection port 152 passes through. The first centrifugal fan 131 and the second centrifugal fan 151 suck the air that exchanges heat with the heat exchanger 140 in the heat exchanger accommodating chamber, thereby forming a first heat exchange gas stream and a second heat exchange gas stream, respectively. The first impeller 133 of the first centrifugal fan 131 and the first volute 134 are disposed in a space defined by the partition 143 and the casing 112, and the exhaust port of the first volute 134 faces the side wall of the casing 110; The intake port of the air guiding member 136 is in contact with the exhaust port of the first volute 134.

Similarly, the second impeller 153 and the second volute 154 of the second centrifugal fan 151 are disposed in the space defined by the partition 143 and the casing 112, and the exhaust port of the second volute 154 faces the other of the casing 110. The side wall of one side; the air inlet of the second air guiding member 156 is in contact with the exhaust port of the second volute 154.

FIG. 7 is a schematic view showing the structure in which the first air supply unit and the second air supply unit of the wall-mounted air conditioner indoor unit 100 blow air to the air injection unit 120 according to an embodiment of the present invention. The first air supply assembly includes a first centrifugal fan 131 and a first air guiding member 136, and the second air blowing assembly includes a second centrifugal fan 151 and a second air guiding member 156. In order to ensure the air jet velocity of the air-jet component 120, the first air supply assembly and the second air supply assembly of the present embodiment each employ a centrifugal fan as a power source for the heat exchange airflow.

The first centrifugal fan 131 accelerates the gas by the first impeller 133 rotating at a high speed according to the principle that the kinetic energy is converted into potential energy, and then decelerates and changes the flow direction to convert the kinetic energy into potential energy. The first centrifugal fan 131 generally includes a first gas collection port 132, a first impeller 133, and a first volute 134. The first air collection port 132 of the first centrifugal fan 131 functions to ensure that the air flow can uniformly fill the inlet interface of the first impeller 133, thereby reducing the flow loss. In this embodiment, the first air collection port 132 of the first centrifugal fan 131 is oriented. The direction of the first impeller 133 is tapered to form a bell mouth, and the air exchanged with the heat exchanger 140 in the heat exchanger accommodating chamber can be sucked into the first impeller 133 as much as possible. When the first impeller 133 of the first centrifugal fan 131 is rotated by the first high-speed motor 135, the gas between the first impellers 133 is rotated by the first impeller 133 to obtain centrifugal force, and the gas is drawn out of the first impeller 133, and enters the first A volute 134, the gas pressure in the first volute 134 is increased and directed to discharge. After the gas between the blades is discharged, a negative pressure is formed; the heat exchanger 140 in the heat exchanger accommodating chamber outside the first gas collection port 132 is continuously sucked in, thereby forming a continuous gas flow.

The first impeller 133 of the first centrifugal fan 131 and the first volute 134 are disposed in a space defined by the partition 143 and the casing 112, and the exhaust port of the first volute 134 faces the side of the first intake port 1291. The side wall of the housing 110; the air inlet of the first air guiding member 136 is in contact with the exhaust port of the first volute 134. The first volute 134 is spirally shaped to absorb the air drawn from the first impeller 133 and convert the dynamic pressure of the airflow into a static pressure through a wide cross-sectional area.

The first air guiding member 136 is connected between the exhaust port of the first centrifugal fan 131 and the first air inlet 1291, and is configured to guide the airflow discharged from the first centrifugal fan 131 into the air supply chamber 125. The first air guiding member 136 may include a first drainage section 137 and a first air supply section 138.

The first drainage section 137 has an intake port of the first air guiding member 136, and at least a part of the first drainage section 137 is spirally shaped, and the direction of the airflow discharged from the first centrifugal fan 131 is directed downward, and the first drainage section 137 The air inlet from the first air guiding member 136 is tapered in the airflow direction to accelerate the airflow into the first plenum 139 of the first air supply section 138.

The first air supply section 138 is in contact with the first drainage section 137, and defines a first air collection chamber 139 therein to receive the airflow discharged by the first centrifugal fan 131. The first air supply section 138 is opened toward the first air inlet. The port 1291 is configured to supply the airflow of the first plenum 139 to the air supply chamber 125. The first air supply section 138 forms a volute shape along the air outlet direction of the first drainage section 137, reducing the wind resistance of the airflow in the first air collection chamber 139, thereby forming a vortex in the first air collection chamber 139, which can smoothly The ground passes from the first collecting chamber 139 to the supply air chamber 125.

The first drainage section 137 may be disposed on one side of the first centrifugal fan 131. Due to the space limitation of the partition 143, the front and rear distances of the first drainage section 137 are small, and the first air supply section 138 is located in the heat exchanger receiving cavity. The lower portion (that is, the partition plate 143 and the lower portion of the heat exchanger 140), so that the distance in the front-rear direction is greater than the first drainage portion 137, and the exhaust port of the first air supply portion 138 is disposed in the first air collection chamber 139. On the front side of the side of the air jet component 120. The first air inlet 1291 of the air injection member 120 is disposed on the annular outer wall 122 of the arcuate section 129 on the side of the first air guiding member 136 in the two arcuate sections 129.

The structure of the second air supply assembly is identical to the first air supply assembly. Specifically, the second centrifugal fan 151 generally includes a second gas collection port 152, a second impeller 153, and a second volute 154. The second air collection port 152 of the second centrifugal fan 151 functions to ensure that the air flow can uniformly fill the inlet interface of the second impeller 153, reducing flow loss. The second air collection port 152 of the second centrifugal fan 151 is tapered toward the second impeller 153 to form a bell mouth, and the air that exchanges heat with the heat exchanger 140 in the heat exchanger housing chamber can be sucked into the second impeller 153 as much as possible. When the second impeller 153 of the second centrifugal fan 151 is driven by the second high-speed motor 155 to rotate with the shaft, the gas between the second impeller 153 is rotated by the second impeller 153 to obtain centrifugal force, and the gas is pulled out of the second impeller 153 to enter the first The gas pressure in the second volute 154 and the second volute 154 is increased and directed to discharge. After the gas between the blades is discharged, a negative pressure is formed; the heat exchanger 140 in the heat exchanger housing outside the second gas collection port 152 is continuously sucked in to form a continuous gas flow.

The second impeller 153 and the second volute 154 of the second centrifugal fan 151 are disposed in a space defined by the partition 143 and the casing 112, and the exhaust port of the second volute 154 faces the side of the second intake port 1292. The side wall of the housing 110; the air inlet of the second air guiding member 156 is in contact with the exhaust port of the second volute 154. The second volute 154 is spirally shaped to absorb the air drawn from the second impeller 153 and convert the dynamic pressure of the airflow into a static pressure through a wide cross-sectional area.

The second air guiding member 156 is connected between the exhaust port of the second centrifugal fan 151 and the second air inlet 1292, and is configured to guide the airflow discharged by the second centrifugal fan 151 into the air supply chamber 125. The second air guiding member 156 can include a second drainage section 157 and a second supply section 158.

The second drainage section 157 has an intake port of the second air guiding member 156, and at least a portion of the second drainage section 157 is spirally shaped to guide the direction of the airflow discharged from the second centrifugal fan 151 downward, and the second drainage section 157 The air inlet from the second air guiding member 156 is tapered in the airflow direction to accelerate the airflow into the second plenum 159 of the second air supply section 158.

The second air supply section 158 is in contact with the second drainage section 157, and defines a second air collection chamber 159 therein to receive the airflow discharged by the second centrifugal fan 151, and the second air supply section 158 is opened toward the second air intake. The port 1291 is configured to supply the airflow of the second plenum 159 to the air supply chamber 125. The second air supply section 158 forms a volute shape along the air outlet direction of the second drainage section 157, reducing the wind resistance of the airflow in the second air collection chamber 159, thereby forming a vortex in the second air collection chamber 159, which can be smoothly performed. The ground passes from the second collecting chamber 159 to the supply air chamber 125.

The second drainage section 157 may be disposed on one side of the second centrifugal fan 151. Due to the space limitation of the partition 143, the front and rear distances of the second drainage section 157 are small, and the second air supply section 158 is located in the heat exchanger receiving cavity. The lower portion (that is, the partition plate 143 and the lower portion of the heat exchanger 140), so that the distance in the front-rear direction is greater than the second drainage portion 157, and the exhaust port of the second air supply portion 158 is disposed in the second air collection chamber 159. On the front side of the side of the air jet component 120. The second air inlets 1292 of the air injection members 120 are respectively disposed on the annular outer walls 122 of the arcuate sections 129 on the side of the second air guiding member 156 in the two arc segments 129.

The first air supply unit and the second air supply unit cooperate with each other to jointly supply air, so that the airflow in the air supply chamber 125 is more uniform, and the air outlets of the air outlets 124 are evenly distributed, thereby ensuring uniform driving of the surrounding air, thereby further improving Air supply stability and uniformity.

In addition, under some special working conditions, the first air supply component and the second air supply component can also be started selectively or started with different winds, so that the wind meets the requirements of these special working conditions, and the control is more flexible. For example, when the temperature difference between the ambient temperature and the set temperature is small, or the user sets the air supply in the low wind mode, one of the first air supply component and the second air supply component may be selected to be activated, and it is not necessary to simultaneously open two The air supply assembly; in addition, the first air supply assembly and the second air supply assembly can also be alternately activated to achieve an effect similar to a wind swing. In addition, the air supply chamber 125 may be provided with a wind deflector, and the air supply chamber 125 is divided into two chambers, one of which communicates with the first air inlet 1291 for receiving from the first delivery. The first heat exchange gas stream of the wind assembly, the other chamber is in communication with the second air inlet 1292 for receiving the second heat exchange gas stream from the second air supply assembly.

Since the first air supply unit and the second air supply unit collectively supply air to the air injection unit 120, the control mode is more flexible and convenient, and can meet the air supply requirements of different working conditions, thereby greatly improving the user experience.

The wall-mounted air conditioner indoor unit 100 of the present embodiment, the air supply port 117 below the casing 110, is for arranging the annular air-jet component 120 so that the airflow exchanged by the heat exchanger 140 is ejected from the air-jet opening 124 of the air-jet component 120. The ambient air around the air supply port 117 is mixed with the heat exchange airflow with a sharp temperature difference in the surrounding environment, thereby ensuring that the airflow sent out is soft, and the feeling of blowing to the human body is more comfortable, and on the other hand, the air supply amount of the indoor unit 100 is increased. The indoor air flow is accelerated, and the indoor temperature is uniformly lowered as a whole, and the air outlet of the wall-mounted air conditioner indoor unit 100 of the present invention is an oblong (also referred to as a racetrack shape) and is disposed below the casing 110. The overall structure is similar to the existing traditional hanging indoor unit, and is easily accepted by the user, and is easy to replace the existing conventional hanging indoor unit. The installation position is flexible, the internal components are compact, and the space inside the housing 110 can be fully utilized. Make the wall-mounted air conditioner indoor unit thinner.

The flow direction of the heat exchange airflow of the wall-mounted air conditioner indoor unit 100 of the present embodiment is such that after the first centrifugal fan 131 and the second centrifugal fan 151 are activated, the air around the indoor unit 100 is sucked into the heat exchanger from the air inlets 116 on both sides. In the chamber, heat exchange is performed with the heat exchanger 140. A portion of the heat exchanged airflow enters the first centrifugal fan 131, is accelerated by the first impeller 133, enters the first air guiding member 136 via the first volute 134, and passes through the first guiding section 137 of the first air guiding member 136. And entering the first air collection chamber 139 of the first air supply section 138. The airflow vortex in the first plenum 139 and finally passes through the exhaust port of the first air supply section 138 from the first air inlet 1291 into the annular air supply chamber 125, and finally is sent out from the air outlet 124, thereby forming a first Heat exchange gas flow.

The other part of the heat exchanged airflow enters the second centrifugal fan 151, is accelerated by the second impeller 153, enters the second air guiding member 156 via the second volute 154, and passes through the second drainage section 157 of the second air guiding member 156. Guided into the second plenum 159 of the second supply section 158. The airflow vortexes in the second plenum 159 and finally passes through the exhaust port of the second air supply section 158 from the second air inlet 1292 into the annular air supply chamber 125, and finally is sent out from the air outlet 124, thereby forming a second Heat exchange gas flow.

After entering the air supply chamber 125, under the guidance of the rear side edge 126 of the annular inner wall 121, the first heat exchange gas stream and the second heat exchange gas stream are ejected forward from the air outlet 124 at a high speed to drive the air at the rear of the air supply port 117. The air in the circulation area 118 is sucked through the air vent hole 123 of the air injection unit 120, mixed in front of the indoor unit 100, and sent into the room, and the amount of airflow is greatly increased, and the airflow after the heat exchange is mixed with the ambient air to become cold. The cold, gentle airflow accelerates the flow of indoor air.

When the first air supply unit and the second air supply unit are independently activated, the flow direction of the respective airflow is similar to the flow direction described above, and the air supply chamber 125 will flow from the first air supply unit or the second air supply unit. Send it out.

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims

A wall-mounted air conditioner indoor unit includes:

a housing, the housing includes a cover and a front panel disposed in front of the cover, the air inlet is respectively opened on two sides of the cover, and an air outlet of an oblong shape is formed on a lower portion of the front panel;

a heat exchanger disposed at a position of the interior of the casing adjacent to the front panel, the location of which is in communication with the air inlet;

An air-jet member is disposed in the air supply opening, and an air-blast port is formed on an inner peripheral wall thereof, and the air-jet opening is used for jetting a heat exchange airflow in the air-jet component forward, and driving the inner peripheral wall of the air-jet component to be defined The ambient air in the exhaust hole is sent forward, and the exhaust hole communicates with the surrounding environment upstream of the air blowing direction;

The first air supply assembly and the second air supply assembly are laterally spaced apart from the rear of the heat exchanger, wherein the first air supply assembly is configured to generate the air inlet from one side, and the heat exchanger a first heat exchange gas stream supplied to the gas jet part after heat exchange; the second air supply unit is configured to generate the air inlet from the other side, and exchange heat with the heat exchanger The second heat exchange gas stream of the jet component.
A wall-mounted air conditioner indoor unit according to claim 1, wherein

The air injection component includes an annular inner wall and an annular outer wall, wherein the inner side of the annular inner wall defines the air vent, the annular outer wall and the annular inner wall together define a supply air chamber, and the annular outer wall and the annular inner wall The intersecting edges form the air outlet, and the two ends of the annular outer wall are respectively provided with a first air inlet and a second air inlet for receiving a heat exchange air flow, and

The first air supply assembly is connected to the first air inlet to supply the first heat exchange airflow to the air supply chamber through the first air inlet, the second air supply assembly and The second air inlet is connected to supply the second heat exchange airflow to the air supply chamber through the second air inlet.
A wall-mounted air conditioner indoor unit according to claim 2, wherein

a rear side edge of the annular inner wall is recessed toward the inside of the air supply chamber, and a position of the annular outer wall opposite to a rear side edge of the annular inner wall has an outward flange, such that the annular outer wall and the outer wall a gap between the rear side edges of the annular inner wall forming the air vent; and

The annular inner wall extends forwardly from a rear side edge thereof to form a continuously outwardly extending Coanda surface;

a section of the annular outer wall at a rear side of the air injection component is spirally shaped such that a flow of the air supply chamber is ejected from the air outlet after the annular outer wall is ejected along the annular inner wall The Enda surface is sent forward and drives the ambient air behind the air outlet.
A wall-mounted air conditioner indoor unit according to claim 2, wherein

The air jet component includes two spaced horizontal sections and two arcuate sections connecting the two horizontal sections such that the air jet component integrally forms an oblong shape that fits the air supply opening, wherein The first air inlet and the second air inlet are respectively defined on the annular outer wall of the two arc segments.
A wall-mounted air conditioner indoor unit according to claim 2, wherein

The first air blowing component includes: a first centrifugal fan and a first air guiding component, wherein the first centrifugal fan is used as a power source of the first heat exchange airflow, and the first air guiding component is connected to the first air guiding component a discharge port of the centrifugal fan and the first air inlet to guide the airflow discharged by the first centrifugal fan into the air supply chamber;

The second air blowing component includes: a second centrifugal fan and a second air guiding component, wherein the second centrifugal fan is used as a power source of the second heat exchange airflow, and the second air guiding component is connected to the first air blowing component And connecting between the exhaust port of the centrifugal fan and the second air inlet to guide the airflow discharged by the second centrifugal fan into the air supply chamber.
The wall-mounted air conditioner indoor unit according to claim 5, further comprising:

a partition, the center of which is recessed rearward to define a heat exchanger accommodating cavity for arranging the heat exchanger with the front panel, and both sides of the partition form a rearward flanging, The air inlet is opened at a position opposite to the flange, such that a flange of the partition and a side wall of the casing define a flow from the air inlet to the heat exchanger receiving cavity Wind passage.
A wall-mounted air conditioner indoor unit according to claim 6, wherein

The middle portion of the partition plate is further provided with a first through hole and a second through hole which are laterally spaced apart, and

The impeller and the volute of the first centrifugal fan are disposed in a space defined by the partition and the casing, and an exhaust port of the volute of the first centrifugal fan faces the first air inlet side a side wall of the casing, an exhaust port of the volute of the first centrifugal fan is in contact with an intake port of the first air guiding member, and a gas collecting port of the first centrifugal fan is from the Passing a first through hole to take in air from the heat exchanger accommodating chamber to form the first heat exchange gas stream;

The impeller and the volute of the second centrifugal fan are also disposed in the space defined by the partition and the casing, and the exhaust port of the volute of the second centrifugal fan faces the second air inlet a side wall of the casing, an exhaust port of the volute of the second centrifugal fan is in contact with an air inlet of the second air guiding member, and a gas collecting port of the second centrifugal fan is The second through hole is vented to take in air from the heat exchanger accommodating chamber to form the second heat exchange gas stream.
A wall-mounted air conditioner indoor unit according to claim 7, wherein

The first air guiding member includes: a first drainage section having an air inlet of the first air guiding member, and at least a portion of the first drainage section is spirally shaped to discharge the first centrifugal fan The air flow direction is directed downward; the first air supply section is in contact with the first drainage section, and the interior defines a first air collection chamber to receive the airflow discharged by the first centrifugal fan, the first The air supply section is provided with a first exhaust port that is in contact with the first air inlet to supply airflow of the first air collection chamber to the air supply chamber;

The second air guiding member includes: a second drainage section having an air inlet of the second air guiding member, and at least a portion of the second drainage section is spirally shaped to discharge the second centrifugal fan The air flow direction is directed downward; the second air supply section is in contact with the second drainage section, and the interior defines a second air collection chamber to receive the airflow discharged by the second centrifugal fan, the second The air supply section is provided with a second exhaust port that is in contact with the second air inlet to supply airflow of the second air collection chamber to the air supply chamber.
A wall-mounted air conditioner indoor unit according to claim 8, wherein

The first drainage section is tapered from the air inlet of the first air guiding component in the airflow direction, and the first air supply section is formed in a volute shape along the air outlet direction of the first drainage section, thereby reducing a wind resistance of the first heat exchange gas stream within the first plenum; and

The second drainage section is tapered from the air inlet of the second air guiding component in the airflow direction, and the second air supply section is formed in a volute shape along the air outlet direction of the second drainage section, thereby reducing a wind resistance of the second heat exchange gas stream in the second gas collection chamber.
A wall-mounted air conditioner indoor unit according to claim 6, wherein

The cover and the lower portion of the front panel form the air supply opening penetrating forward and backward, and a position of the rear side of the cover forming the air supply opening is recessed forward so that air is circulated behind the air supply opening region.