CN215175495U

CN215175495U - Indoor unit of ceiling type air conditioner

Info

Publication number: CN215175495U
Application number: CN202120500530.8U
Authority: CN
Inventors: 郭博渊; 陈超
Original assignee: Hisense Shandong Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-12-14
Anticipated expiration: 2031-03-09

Abstract

The utility model discloses an indoor set of suspension type air conditioner, indoor set includes: casing, first heat exchanger, second heat exchanger, first fan subassembly, second fan subassembly. The shell is internally provided with a first air duct and a second air duct which are independent from each other, the shell is also provided with an air inlet and a plurality of air outlets, and the first air duct and the second air duct are respectively communicated with different air outlets. The indoor unit is functionally divided into a first heat exchange unit and a second heat exchange unit, the first air duct, the first heat exchanger and the first fan assembly belong to the first heat exchange unit, and the second air duct, the second heat exchanger and the second fan assembly belong to the second heat exchange unit. The maximum refrigerating capacity of the first heat exchange unit is larger than that of the second heat exchange unit. From this, the air current that flows in from the air intake can be blown off from different air outlets by the wind channel of fan subassembly guidance to the different regions of effect, realize the independent refrigeration or the heating in each region, satisfy diversified demand.

Description

Indoor unit of ceiling type air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner and specifically relates to an indoor set of suspension type air conditioner is related to.

Background

The both sides air output of prior art's suspension type air conditioner is the same, and the size homogeneous phase such as wind channel, heat exchanger that it has is owing to only designed a fan, so single wind channel can not independent control or open and stop, can't adapt to the regional demand of different areas better, realize the differentiation air supply, and user's experience feels lacks.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an indoor unit of a ceiling type air conditioner.

According to the utility model discloses indoor set of suspension type air conditioner includes: casing, first heat exchanger, second heat exchanger, first fan subassembly, second fan subassembly.

The air conditioner is characterized in that a first air channel and a second air channel which are independent of each other are arranged in the machine shell, the machine shell is further provided with an air inlet and a plurality of air outlets, and the first air channel and the second air channel are respectively communicated with different air outlets. The first heat exchanger is fixed with the casing and arranged towards the inlet of the first air duct, the second heat exchanger is fixed with the casing and arranged towards the inlet of the second air duct, and the air inlet is arranged towards one side of the first heat exchanger departing from the first air duct and one side of the second heat exchanger departing from the air duct. The first fan assembly is connected with the casing to draw air to the first air duct, and the second fan assembly is connected with the casing to draw air to the second air duct. The indoor unit is functionally divided into a first heat exchange unit and a second heat exchange unit, the first air duct, the first heat exchanger and the first fan assembly belong to the first heat exchange unit, and the second air duct, the second heat exchanger and the second fan assembly belong to the second heat exchange unit.

The maximum refrigerating capacity of the first heat exchange unit is larger than that of the second heat exchange unit.

From this, through setting up mutually independent first wind channel, the second wind channel, first fan subassembly, second fan subassembly, so that first fan subassembly of first heat exchanger during operation correspondingly draws wind to first wind channel, second fan subassembly during operation correspondingly draws wind to the second wind channel, the air current that flows in from the air intake can be drawn to different wind channels by fan subassembly like this, blow off from different air outlets, in order to act on different regions, realize the independent refrigeration or the heating in each region, and simultaneously, the differentiation of both sides air output, in order to satisfy diversified demand.

In some embodiments, the maximum air output of the first heat exchange unit is greater than the maximum air output of the second heat exchange unit, and the maximum air output of the first heat exchange unit is 2-2.5 times of the maximum air output of the second heat exchange unit.

In some embodiments, the first fan assembly comprises a first fan and a first motor, the second fan assembly comprises a second fan and a second motor, the first fan is located within the first air duct, and the second fan is located within the second air duct; and at least one of the following is satisfied:

1) the maximum rotating speed of the first fan is greater than that of the second fan; 2) the rated power of the first motor is larger than that of the second motor; 3) the heat exchange quantity of the first heat exchanger is greater than that of the second heat exchanger; 4) the ventilation volume of the first air duct is greater than that of the second air duct; 5) the air outlet of the first air duct is larger than the air outlet of the second air duct; 6) the area of the air inlet corresponding to the first heat exchange unit is larger than that of the air inlet corresponding to the second heat exchange unit.

In some embodiments, the air inlet is located at the bottom end of the housing, the first air duct and the second air duct both extend along a first direction, the two air ducts are distributed in a second direction perpendicular to the first direction, and the plurality of air outlets are located on opposite sides of the first air duct and the second air duct in the second direction.

In some embodiments, the first heat exchanger, the first fan assembly, the second heat exchanger, and the second fan assembly are configured to be individually controllable to operate the indoor unit in three operating modes:

a. air is supplied to the first side, the first heat exchanger and the first fan assembly work, and the second heat exchanger and the second fan assembly do not work;

b. air is supplied to the second side, the second heat exchanger and the second fan assembly work, and the first heat exchanger and the first fan assembly do not work;

c. and air is supplied from two sides, and the first heat exchanger, the first fan assembly, the second heat exchanger and the second fan assembly all work.

In some embodiments, the indoor unit of the ceiling type air conditioner further includes a middle partition plate connected to the casing, the middle partition plate separating the first heat exchanger and the second heat exchanger at an air inlet, a first air inlet area being defined between one side of the middle partition plate and the first heat exchanger, a second air inlet area being defined between the other side of the middle partition plate and the second heat exchanger, and the first air inlet area and the second air inlet area being spaced apart from each other.

In some embodiments, the middle partition is configured to swing when one-sided blowing is performed, the middle partition swings toward the second heat exchanger when the first air intake area is supplied with air, and the middle partition swings toward the first heat exchanger when the second air intake area is supplied with air.

In some embodiments, the casing has end plates located at the ends of the first air duct and the second air duct, the casing defines a holding groove for holding the first heat exchanger and the second heat exchanger, two ends of the first heat exchanger are detachably connected with the two end plates respectively, two ends of the second heat exchanger are detachably connected with the two end plates, and the middle partition plate is pivotally connected with the end plates.

In some embodiments, the enclosure comprises: the air duct comprises an air duct shell and a panel, wherein the air duct shell is internally provided with a first air duct and a second air duct, the first heat exchanger and the second heat exchanger are fixed on the air duct shell, the air outlet is formed in two sides of the air duct shell, the panel is installed at the bottom end of the air duct shell, and the air inlet is formed in the panel.

In some embodiments, the indoor unit of the ceiling type air conditioner further includes a water pan, the water pan is located between the panel and the casing, the water pan has a first water receiving tank and a second water receiving tank respectively matched with the first heat exchanger and the second heat exchanger, the water pan has an air inlet passing opening opposite to the air inlet of the panel, and the first water receiving tank and the second water receiving tank are distributed on two sides of the air inlet passing opening.

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

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a partial structural view of an indoor unit of a ceiling type air conditioner according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view (panel not shown) of an indoor unit of a ceiling type air conditioner according to an embodiment of the present invention.

Fig. 3 is a partially enlarged schematic view of the region M in fig. 2.

Fig. 4 is a partially enlarged schematic view of the region N in fig. 2.

Fig. 5 is a schematic view illustrating an assembly of a middle partition plate and an end plate of an indoor unit of a ceiling type air conditioner according to an embodiment of the present invention.

Reference numerals:

an indoor unit 100;

a housing 10; a first air duct 11; a second air duct 12; an end plate 13; an accommodating groove 14; an air duct housing 15; an air outlet 151; a panel 16;

a first heat exchanger 20; a second heat exchanger 30; a first fan 40; a second fan 50;

a middle partition plate 60; a first air intake area 70; a second air intake region 80;

a water pan 90; a first water receiving tank 91; a second water receiving tank 92; an air inlet through port 93;

a first direction A; a second direction B.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

An indoor unit 100 of a ceiling type air conditioner according to an embodiment of the present invention will be described with reference to fig. 1 to 5.

According to the utility model discloses indoor set 100 of suspension type air conditioner includes: the heat exchanger comprises a shell 10, a first heat exchanger 20, a second heat exchanger 30, a first fan assembly and a second fan assembly.

As shown in fig. 1 and 2, a first air duct 11 and a second air duct 12 that are independent from each other are disposed in the casing 10, the casing 10 further has an air inlet (not shown in the figure) and a plurality of air outlets 151, and the first air duct 11 and the second air duct 12 are respectively communicated with different air outlets 151. The first heat exchanger 20 is fixed to the casing 10 and disposed toward an inlet of the first air duct 11, the second heat exchanger 30 is fixed to the casing 10 and disposed toward an inlet of the second air duct 12, and the air inlet is disposed toward one side of the first heat exchanger 20 departing from the first air duct 11 and one side of the second heat exchanger 30 departing from the air duct. The first fan assembly is connected to the cabinet 10 to induce air to the first duct 11, and the second fan assembly is connected to the cabinet 10 to induce air to the second duct 12.

The indoor unit 100 is functionally divided into a first heat exchange unit and a second heat exchange unit, the first air duct 11, the first heat exchanger 20, and the first fan assembly belong to the first heat exchange unit, and the second air duct 12, the second heat exchanger 30, and the second fan assembly belong to the second heat exchange unit. The maximum refrigerating capacity of the first heat exchange unit is larger than that of the second heat exchange unit.

Specifically, the fan assemblies comprise motors and fans connected with the motors, the motors are used for driving the fans to rotate, the motors of the two fan assemblies respectively work independently and do not influence each other, the fan of the first fan assembly draws air to the first air duct 11 during working, and the fan of the second fan assembly draws air to the second air duct 12 during working. The refrigerating capacity of the heat exchange unit is at least influenced by one of the air duct, the heat exchanger and the fan assembly.

For example, each part of the first heat exchange unit and the second heat exchange unit is designed to meet the design requirement of the maximum refrigerating capacity, so that the following purposes are achieved: the power of the first heat exchange unit can be 2 p, and the power of the second heat exchange unit can be 1 p or 1.5 p; or the power of the first heat exchange unit is 1.5 p, and the power of the second heat exchange unit is 1 p.

From this, through setting up mutually independent first wind channel 11, second wind channel 12, first fan subassembly, second fan subassembly, so that first fan subassembly of first heat exchanger 20 during operation correspondingly guides wind to first wind channel 11, second fan subassembly during operation correspondingly guides wind to second wind channel 12, the air current that flows in from the air intake can be guided to different wind channels by the fan subassembly like this, blow off from different air outlets 151, with the region of effect difference, realize the independent refrigeration or the heating in each region, simultaneously, the difference of both sides refrigerating output, in order to satisfy diversified demand.

In order to improve the working efficiency of the heat exchanger, the first heat exchanger 20 and the second heat exchanger 30 are disposed toward the inlet, so that the heat exchangers can exchange heat with the incoming airflow at the first time, and the whole indoor unit 100 is more compact and integrated in structural arrangement.

Optionally, the maximum air output of the first heat exchange unit is greater than the maximum air output of the second heat exchange unit, and the maximum air output of the first heat exchange unit is 2-2.5 times of the maximum air output of the second heat exchange unit.

Therefore, the difference degree of the air output of the two heat exchange units can be increased, so that the first heat exchange unit can efficiently and quickly output air, and the aim of refrigerating or heating is fulfilled.

Further, the first fan assembly includes a first fan 40 and a first motor (not shown), the second fan assembly includes a second fan 50 and a second motor (not shown), the first fan 40 is located in the first air duct 11, and the second fan 50 is located in the second air duct 12; and at least one of the following is satisfied:

1) the maximum rotational speed of the first fan 40 is greater than the maximum rotational speed of the second fan 50; 2) the rated power of the first motor is larger than that of the second motor; 3) the heat exchange amount of the first heat exchanger 20 is larger than that of the second heat exchanger 30; 4) the ventilation volume of the first air duct 11 is greater than that of the second air duct 12; 5) the air outlet 151 of the first air duct 11 is larger than the air outlet 151 of the second air duct 12; 6) the area of the air inlet corresponding to the first heat exchange unit is larger than that of the air inlet corresponding to the second heat exchange unit.

Therefore, the first fan assembly, the second fan assembly or the first heat exchange unit and the second heat exchange unit are distinguished by setting one of the parameters such as the rotating speeds of different fans or the power of a motor, so that the suction capacity of the first fan assembly is larger than that of the second fan assembly, and the heat exchange capacity of the first heat exchange unit is larger than that of the second heat exchange unit, so that different air output amounts and refrigeration effects are realized on two sides of the indoor unit 100.

Specifically, for example, the heat exchange amount of the first heat exchanger 20 is larger than that of the second heat exchanger 30. In order to distinguish the air blowing amounts of different regions, the first heat exchanger 20 and the second heat exchanger 30 are set to different specifications, and asymmetrical bidirectional air blowing is performed.

Therefore, the heat exchange capacity of the first air duct 11 on the side where the first heat exchanger 20 is located is stronger, the air outlet quantity of the air outlet 151 is larger, the refrigerating or heating capacity is stronger than that of the second heat exchanger 30, different use conditions can be met due to different set specifications, and a differential refrigerating or heating scheme is provided.

For another example, if the maximum rotational speed of the first fan 40 is greater than the maximum rotational speed of the second fan 50, and the rated power of the first motor is greater than the rated power of the second motor, the induced air capacity of the first fan assembly is greater than the induced air capacity of the second fan assembly. Further, the first fan 40 and the second fan 50 may employ a cross flow fan.

Therefore, the suction capacities of the first fan assembly and the second fan assembly are differentiated, different air inlet volumes can be achieved in the air channel where the fan assemblies are located, the air channel can work by matching with different heat exchangers, the efficiency of the heat exchangers can be improved due to the differentiated suction capacities, and the power consumption of the indoor unit 100 is reduced.

For another example, the ventilation amount of the first air duct 11 is larger than the ventilation amount of the second air duct 12. Accordingly, the projected area of the first heat exchanger 20 at the air inlet is larger than the projected area of the second heat exchanger 30 at the air inlet.

Therefore, the ventilation volumes of different air ducts are different, and the requirements of cooling or heating environments of different areas can be met to the maximum extent.

Specifically, the air inlet is located at the bottom end of the housing 10, the first air duct 11 and the second air duct 12 both extend along the first direction a, the two air ducts are distributed in the second direction B perpendicular to the first direction a, and the plurality of air outlets 151 are located on the opposite sides of the first air duct 11 and the second air duct 12 in the second direction B.

From this, extend along first direction A, two relative wind channels that second direction B distributes, its air outlet 151 direction is different, at the bottom air inlet of casing 10, both sides air-out, can save space, the effect of air supply is better, can form better air current distribution.

Optionally, the first heat exchanger 20, the first fan assembly, the second heat exchanger 30 and the second fan assembly are configured to be individually controllable, so that the indoor unit 100 operates in the following three operation modes:

a. air is supplied to the first side, the first heat exchanger 20 and the first fan assembly work, and the second heat exchanger 30 and the second fan assembly do not work;

b. air is supplied to the second side, the second heat exchanger 30 and the second fan assembly work, and the first heat exchanger 20 and the first fan assembly do not work;

c. bilateral air supply is performed, and the first heat exchanger 20, the first fan assembly, the second heat exchanger 30 and the second fan assembly all work.

From this, first heat exchanger 20 and first fan subassembly, second heat exchanger 30 and second fan subassembly wherein one set of or two sets of during operation, according to the different wind channels of demand control of difference open to provide diversified air output and air-out mode, increase user's experience, realize differentiated air supply, with the different demands that satisfy different regions, have energy saving and emission reduction's effect simultaneously.

Further, as shown in fig. 2 and 5, the indoor unit 100 of the ceiling type air conditioner further includes an intermediate partition 60, the intermediate partition 60 is connected to the cabinet 10, the intermediate partition 60 partitions the first heat exchanger 20 and the second heat exchanger 30 at the air inlet, a first air inlet area 70 is defined between one side of the intermediate partition 60 and the first heat exchanger 20, a second air inlet area 80 is defined between the other side of the intermediate partition 60 and the second heat exchanger 30, and the first air inlet area 70 and the second air inlet area 80 are spaced apart from each other.

It will be appreciated that the first air duct 11 and the second air duct 12 share an air inlet, and the area between the air inlet and the heat exchanger is divided by the middle partition 60 into a first air inlet area 70 adjacent to the first heat exchanger 20 and a second air inlet area 80 adjacent to the second heat exchanger 30.

When the first heat exchanger 20 and the first fan assembly work, air at the air inlet correspondingly flows to the first heat exchanger 20 through the first air inlet area 70, enters the first air duct 11 after exchanging heat with the first heat exchanger 20, and is finally sent to the indoor through the air outlet 151 of the first air duct 11; when the second heat exchanger 30 and the second fan assembly work, air at the air inlet correspondingly flows to the second heat exchanger 30 through the second air inlet area 80, enters the second air duct 12 after exchanging heat with the second heat exchanger 30, and finally is delivered to the indoor through the air outlet 151 of the second air duct 12. The unit formed by the first heat exchanger 20, the first air duct 11 and the first fan assembly is called as a first heat exchange unit; the second heat exchanger 30, the second air duct 12 and the second fan assembly form a unit called a second heat exchange unit.

Therefore, under the working condition that the first heat exchanger 20 and the second heat exchanger 30 work, due to the arrangement of the two air inlet areas, the air robbing at the air inlets is reduced, and the air inlets of the two heat exchange units are independent and do not influence each other.

Alternatively, the middle partition 60 is configured to swing when one-sided blowing is performed, the middle partition 60 swings toward the second heat exchanger 30 when the first air intake area 70 is supplied with air, and the middle partition 60 swings toward the first heat exchanger 20 when the second air intake area 80 is supplied with air.

That is to say, when the first fan assembly on the side where the first heat exchanger 20 is located needs to work, the middle partition plate 60 swings towards the second heat exchanger 30, the area of the first air inlet area 70 is increased, the first fan assembly and the first heat exchanger 20 are opened, the air flow directly enters the first heat exchanger 20 from the air inlet, and then is sent out from the air outlet 151 of the first air duct 11, at this time, the valve of the second heat exchanger 30 is closed, and the motor of the second fan assembly is also in a stopped state. Similarly, when the second fan assembly on the side where the second heat exchanger 30 is located needs to work, the middle partition plate 60 swings towards the first heat exchanger 20, the area of the second air inlet area 80 is increased, the second fan assembly and the second heat exchanger 30 are opened, air flow directly enters the second heat exchanger 30 from the air inlet and then is sent out from the air outlet 151 of the second air duct 12, at this time, the valve of the first heat exchanger 20 is closed, and the motor of the second fan assembly is in a stop state.

Therefore, the middle partition plate 60 swings towards one side, the air inlet area of a working area is increased, the air inlet amount of the whole machine is increased, single-side air outlet of the indoor unit 100 can be realized, and the requirements of single-side refrigeration or heating are met. Meanwhile, the first fan assembly and the second fan assembly can independently operate, and high-speed, medium-speed and low-speed air supply can be realized by adjusting the rotating speed of a motor driving the fan assembly to operate.

It should be noted that, since the first heat exchanger 20 has a large suction amount and a large heat exchange amount, a larger cross-flow fan and three rows of heat exchangers can be designed and used according to the performance requirements, and the second heat exchanger 30 has a small suction amount and a small heat exchange amount, a smaller cross-flow fan and two rows of heat exchangers can be designed and used. Meanwhile, the structure of the indoor unit 100 and the side air outlet mode are optimized according to the air ducts of the large and small cross-flow fans, so that the whole air duct can be in smooth transition, and the generation of the vortex flow is reduced or avoided as much as possible.

Optionally, when the middle partition 60 does not swing, both the first fan assembly and the second fan assembly are engaged in operation, so as to supply air to both sides of the indoor unit 100, and reduce mutual influence of air volumes on both sides, so as to achieve cooling or heating with higher efficiency and speed.

Alternatively, as shown in fig. 1 to 5, the casing 10 has end plates 13 at ends of the first and

second air ducts

11, 12, the casing 10 defines a receiving groove 14 for receiving the first and

second heat exchangers

20, 30, both ends of the first heat exchanger 20 are detachably connected to the two end plates 13, both ends of the second heat exchanger 30 are detachably connected to the two end plates 13, and the middle partition plate 60 is pivotally connected to the end plates 13.

From this, set up end plate 13 through the tip in the wind channel, improve the regional leakproofness of air inlet to the air current of inhaling from the air intake runs off from both ends, and the heat exchanger can be dismantled with end plate 13 and be connected, maintenance and change, the reduce cost of the later stage heat exchanger of being convenient for. The end plate 13 is pivotally connected with the middle partition plate 60 in a simple and firm manner, and the connection has high stability.

As shown in fig. 1 and 2, the casing 10 includes: the air duct comprises an air duct shell 15 and a panel 16, wherein a first air duct 11 and a second air duct 12 are defined in the air duct shell 15, a first heat exchanger 20 and a second heat exchanger 30 are both fixed on the air duct shell 15, air outlets 151 are formed in two sides of the air duct shell 15, the panel 16 is installed at the bottom end of the air duct shell 15, and air inlets are formed in the panel 16.

Therefore, the first air duct 11 and the second air duct 12 are formed on the side of the air duct casing 15 facing the panel 16 to provide a closed environment for the air duct, and the air duct casing 15 is fully utilized to make the formed indoor unit 100 more compact. The air outlets 151 disposed at opposite sides of the indoor unit 100 may increase a cooling or heating area of the indoor unit 100.

Further, the indoor unit 100 of the ceiling type air conditioner further includes a water receiving tray 90, the water receiving tray 90 is located between the panel 16 and the casing 10, and the water receiving tray 90 has a first water receiving tank 91 and a second water receiving tank 92 respectively matched with the first heat exchanger 20 and the second heat exchanger 30.

As shown in fig. 1, the water-receiving tray 90 is installed on one side of the panel 16 close to the heat exchanger, and a protrusion is arranged in the middle of the water-receiving tray 90, so that the end plate 13 can be installed to form a sealed environment with the end plate 13. The water pan 90 has an annular groove in the middle, wherein the water pan is a first water receiving tank 91 on the same side as the first heat exchanger 20, and a second water receiving tank 92 on the same side as the second heat exchanger 30, and the first water receiving tank 91 and the second water receiving tank 92 are distributed in the second direction B. Here, EPS (Polystyrene foam) with good durability and stable chemical property in water can be used as the material of the water pan 90.

From this, set up first water receiving tank 91 and second water receiving tank 92 respectively with first heat exchanger 20 and second heat exchanger 30 adaptation, increase the stability of first heat exchanger 20 and second heat exchanger 30 installation to make the comdenstion water in the receiving heat exchanger that the water collector 90 can be abundant, avoid comdenstion water outflow indoor set 100, influence the use.

Optionally, the water pan 90 is of an integrated structure, the water pan 90 has an air inlet 93 opposite to the air inlet of the panel 16, and the first water receiving tank 91 and the second water receiving tank 92 are distributed on two sides of the air inlet 93.

From this, make water collector 90 through integrated into one piece, can increase the intensity of water collector 90 structure, when realizing with the heat exchanger assembly, increase the support nature to the heat exchanger. Airflow flowing in from the air inlet flows to the heat exchanger after passing through the air inlet through hole 93 of the water receiving tray 90, and the obstruction to air flowing is reduced by the air inlet through hole 93. The first water receiving groove 91 and the second water receiving groove 92 meet the requirements of normal water receiving and drainage of the heat exchangers on two sides, the air inlet form is designed along with the shape, and the air inlet efficiency of the whole machine is improved.

The indoor unit 100 of the ceiling air conditioner in the present application may perform a refrigeration cycle of the ceiling air conditioner by using an outdoor unit including a compressor, a condenser, an expansion valve, and a heat exchanger as an indoor unit. 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.

Specifically, 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 a condenser, the condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through a condensation process to increase the temperature of the surrounding environment.

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 heat exchanger evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor, and the heat exchanger can achieve a refrigerating effect by heat-exchanging with a material to be cooled using latent heat of evaporation of the refrigerant. So that the air conditioner can adjust the temperature of the indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit. The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or a heat exchanger. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as a heat exchanger, the air conditioner is used as a cooler in a cooling mode.

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 the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and 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 description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An indoor unit of a ceiling type air conditioner, comprising:

the air conditioner comprises a shell, a first air channel and a second air channel which are independent of each other are arranged in the shell, the shell is also provided with an air inlet and a plurality of air outlets, and the first air channel and the second air channel are respectively communicated with different air outlets;

the first heat exchanger is fixed with the shell and is arranged towards the inlet of the first air duct;

the second heat exchanger is fixed with the shell and is arranged towards an inlet of the second air duct, and the air inlet faces to one side of the first heat exchanger, which is far away from the first air duct, and one side of the second heat exchanger, which is far away from the air duct;

the first fan assembly is connected with the shell so as to induce air to the first air duct;

the second fan assembly is connected with the shell so as to induce air to the second air duct;

the indoor unit is functionally divided into a first heat exchange unit and a second heat exchange unit, the first air duct, the first heat exchanger and the first fan assembly belong to the first heat exchange unit, and the second air duct, the second heat exchanger and the second fan assembly belong to the second heat exchange unit;

2. The indoor unit of a ceiling type air conditioner as claimed in claim 1, wherein the maximum air output of the first heat exchange unit is greater than the maximum air output of the second heat exchange unit, and the maximum air output of the first heat exchange unit is 2-2.5 times the maximum air output of the second heat exchange unit.

3. The indoor unit of a ceiling type air conditioner as claimed in claim 1, wherein the first fan assembly includes a first fan and a first motor, and the second fan assembly includes a second fan and a second motor, the first fan being located in the first air passage, the second fan being located in the second air passage; and at least one of the following is satisfied:

the maximum rotating speed of the first fan is greater than that of the second fan;

the rated power of the first motor is larger than that of the second motor;

the heat exchange quantity of the first heat exchanger is greater than that of the second heat exchanger; the ventilation volume of the first air duct is greater than that of the second air duct;

the air outlet of the first air duct is larger than the air outlet of the second air duct;

the area of the air inlet corresponding to the first heat exchange unit is larger than that of the air inlet corresponding to the second heat exchange unit.

4. The indoor unit of a ceiling type air conditioner as claimed in claim 1, wherein the inlet is located at a bottom end of the casing, the first duct and the second duct both extend in a first direction, two ducts are distributed in a second direction perpendicular to the first direction, and the outlets are respectively located at sides of the first duct and the second duct opposite to each other in the second direction.

5. The indoor unit of a ceiling type air conditioner according to any one of claims 1 to 4, wherein the first heat exchanger, the first fan assembly, the second heat exchanger, and the second fan assembly are configured to be individually controllable to operate the indoor unit in three operation modes:

6. The indoor unit of a ceiling type air conditioner as claimed in any one of claims 1 to 4, further comprising a middle partition connected to the cabinet, the middle partition separating the first heat exchanger and the second heat exchanger at an air inlet, a first air inlet area being defined between one side of the middle partition and the first heat exchanger, a second air inlet area being defined between the other side of the middle partition and the second heat exchanger, the first and second air inlet areas being spaced apart from each other.

7. The indoor unit of a ceiling type air conditioner as claimed in claim 6, wherein the middle partition is configured to swing when one-sided blowing air is blown, the middle partition swings toward the second heat exchanger when the first air intake area is blown, and the middle partition swings toward the first heat exchanger when the second air intake area is blown.

8. The indoor unit of a ceiling type air conditioner as claimed in claim 6, wherein the casing has end plates at ends of the first and second air ducts, the casing defines a receiving groove for receiving the first and second heat exchangers, both ends of the first heat exchanger are detachably coupled to both end plates, respectively, both ends of the second heat exchanger are detachably coupled to both end plates, and the middle partition plate is pivotally coupled to the end plates.

9. The indoor unit of a ceiling type air conditioner according to any one of claims 1 to 4, wherein the cabinet comprises:

the first air duct and the second air duct are defined in the air duct shell, the first heat exchanger and the second heat exchanger are fixed on the air duct shell, and the air outlets are formed in two sides of the air duct shell;

the panel, the panel is installed the bottom of wind channel casing, the air intake forms on the panel.

10. The indoor unit of a ceiling-mounted air conditioner according to claim 9, further comprising a water pan disposed between the panel and the casing, the water pan having a first water receiving tank and a second water receiving tank respectively fitted to the first heat exchanger and the second heat exchanger, the water pan having an air inlet opening opposite to the air inlet of the panel, the first water receiving tank and the second water receiving tank being disposed at both sides of the air inlet opening.