Floor-standing air conditioner indoor unit and air conditioner

Abstract

The present invention discloses a floor-standing air conditioner indoor unit and an air conditioner. The floor-standing air conditioner indoor unit comprises a casing, a fan assembly and a valve assembly; a ventilation duct is formed in the casing, and the casing is provided with a first air outlet and a second air outlet connected to the ventilation duct; the first air outlet is connected to the outside, and the second air outlet is connected to the room; the fan assembly is arranged in the ventilation duct; the valve assembly can be movably connected to the casing to switch the ventilation duct between a fresh air mode and an exhaust mode. The floor-standing air conditioner indoor unit of the technical solution of the present invention realizes the function of sharing the same ventilation duct for fresh air introduction and stale air exhaust, simplifies the ventilation structure, saves space, and improves the space utilization rate of the floor-standing air conditioner indoor unit.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a floor-standing type air conditioning indoor unit and an air conditioner. Background Art

[0002] As people's living standards continue to improve, the use of air conditioners is becoming more and more widespread. However, due to various design limitations, users are experiencing more and more air-conditioning diseases when using air conditioners, and indoor air quality is one of the main reasons for user discomfort. In the related art, a ventilation device is set in the air conditioner to improve the indoor air quality, but the existing air conditioner with ventilation function usually needs to be equipped with at least two sets of independent pipes to realize the introduction of fresh air and the discharge of indoor dirty air, resulting in complex structure, large space occupation and low reliability. Summary of the invention

[0003] The main purpose of the present invention is to provide a floor-standing air conditioner indoor unit, aiming to solve the problem in the prior art that two independent sets of pipes are required to introduce fresh air and exhaust indoor polluted air respectively, resulting in a complex ventilation structure.

[0004] To achieve the above-mentioned purpose, the floor-standing air conditioner indoor unit proposed by the present invention comprises:

[0005] A housing, wherein a ventilation duct is formed in the housing, and the housing is provided with a first air outlet and a second air outlet connected to the ventilation duct; the first air outlet is connected to the outside, and the second air outlet is connected to the inside;

[0006] a fan assembly, the fan assembly being disposed in the ventilation duct; and

[0007] A valve assembly, wherein the valve assembly is movably connected to the housing to switch the ventilation duct between a fresh air mode and an exhaust air mode:

[0008] In the fresh air mode, the valve assembly connects the first air outlet to the air inlet side of the fan assembly, and connects the second air outlet to the air outlet side of the fan assembly, and the fan assembly drives the airflow from the first air outlet to the second air outlet;

[0009] In the exhaust mode, the valve assembly connects the first air outlet to the air outlet side of the fan assembly, and connects the second air outlet to the air inlet side of the fan assembly, and the fan assembly drives the airflow from the second air outlet to the first air outlet.

[0010] In one embodiment of the present invention, the valve assembly includes a first valve assembly arranged on the air outlet side of the fan assembly; the first valve assembly is used to switch between a fresh air mode connecting the air outlet side of the fan assembly and the second air outlet and an exhaust air mode connecting the air outlet side of the fan assembly and the first air outlet.

[0011] In one embodiment of the present invention, the valve assembly further comprises a second valve assembly disposed on the air inlet side of the fan assembly;

[0012] In the fresh air mode, the second valve component connects the first air outlet to the air inlet side of the fan component, and blocks the second air outlet from the air inlet side of the fan component;

[0013] In the exhaust mode, the second valve component connects the second air outlet and the air inlet side of the fan component, and blocks the first air outlet and the air inlet side of the fan component.

[0014] In one embodiment of the present invention, the ventilation duct comprises:

[0015] a first air passage, the first air passage communicating with the first air outlet and an air inlet side of the fan assembly; and

[0016] A second air passage, wherein the second air passage is connected to the second air outlet and the air inlet side of the fan assembly;

[0017] The second valve assembly is used to connect the first air passage and the air inlet side of the fan assembly, or to connect the second air passage and the air inlet side of the fan assembly.

[0018] In one embodiment of the present invention, the first valve assembly includes a first door body rotatably connected to the casing, and the first door body can be switched between a fresh air mode and an exhaust air mode to block or connect the air outlet side of the fan assembly and the first air outlet.

[0019] In one embodiment of the present invention, the first valve assembly further includes a second door body rotatably connected to the fan assembly, and the second door body can be switched between a fresh air mode and an exhaust air mode to block or connect the second air outlet and the second air passage.

[0020] In one embodiment of the present invention, in the exhaust mode, the first door body abuts against the second door body to block the air outlet side of the fan assembly from the second air outlet.

[0021] In an embodiment of the present invention, the fan assembly includes two centrifugal fans arranged side by side up and down, and the air inlet sides of the two centrifugal fans are arranged opposite to each other.

[0022] In one embodiment of the present invention, the centrifugal fan includes a volute having an air outlet, and the first valve assembly is arranged corresponding to the air outlet of the volute to connect the air outlet with the second air outlet, or connect the air outlet with the first air outlet.

[0023] In one embodiment of the present invention, an air inlet channel is formed between the two centrifugal fans, the air inlet channel is communicated with the air inlet sides of the two centrifugal fans, and the first air passage channel and the second air passage channel are both communicated with the air inlet channel;

[0024] The second valve assembly includes a third door body and a fourth door body connected to the centrifugal fan, the third door body is used to connect or block the first air passage and the air inlet channel; the fourth door body is used to connect or block the air inlet channel and the second air passage.

[0025] In one embodiment of the present invention, the floor-standing air-conditioning indoor unit further includes two filter modules, and the two filter modules are arranged in the air inlet channel and are respectively arranged opposite to the air inlet sides of the two centrifugal fans.

[0026] In one embodiment of the present invention, the filter module is arranged obliquely relative to the horizontal direction; the two filter modules are arranged at an angle, and the opening of the angle faces the third door body.

[0027] In an embodiment of the present invention, there is a gap between the corresponding filter modules and the centrifugal fans.

[0028] In one embodiment of the present invention, the air outlets of the volutes of the two centrifugal fans face opposite directions; the casing is provided with two second air outlets corresponding to the air outlets of the volutes, and the two second air outlets are respectively arranged on opposite sides of the casing.

[0029] In one embodiment of the present invention, the floor-standing air-conditioning indoor unit includes a main unit and a sub-unit, the casing, the ventilation duct, the fan assembly and the valve assembly are all arranged on the main unit, the main unit includes a heat exchange module arranged in the casing, and the sub-unit can be detachably connected to the main unit.

[0030] In one embodiment of the present invention, a receiving cavity is provided at the lower portion of the housing, and the sub-unit can be received in the receiving cavity or detached from the receiving cavity.

[0031] In one embodiment of the present invention, the ventilation duct comprises:

[0032] a first cavity, the first cavity being located at one side of the accommodating cavity, the first air outlet being in communication with the first cavity; and

[0033] The second cavity is arranged above the accommodating cavity, the fan assembly and the valve assembly are both arranged in the second cavity, and the second air port is communicated with the second cavity.

[0034] To achieve the above object, the present invention further provides an air conditioner, comprising the above-mentioned floor-standing air conditioner indoor unit; the floor-standing air conditioner indoor unit comprises a casing, a fan assembly and a valve assembly; a ventilation duct is formed in the casing, and the casing is provided with a first air outlet and a second air outlet communicated with the ventilation duct; the first air outlet is communicated with the outdoors, and the second air outlet is communicated with the indoors; the fan assembly is arranged in the ventilation duct; the valve assembly can be movably connected to the casing to switch the ventilation duct between a fresh air mode and an exhaust air mode:

[0035] In the fresh air mode, the valve assembly connects the first air outlet to the air inlet side of the fan assembly, and connects the second air outlet to the air outlet side of the fan assembly, and the fan assembly drives the airflow from the first air outlet to the second air outlet;

[0036] In the exhaust mode, the valve assembly connects the first air outlet to the air outlet side of the fan assembly, and connects the second air outlet to the air inlet side of the fan assembly, and the fan assembly drives the airflow from the second air outlet to the first air outlet.

[0037] In the floor-standing air-conditioning indoor unit of the technical solution of the present invention, a first air outlet connected to the outdoors and a second air outlet connected to the indoors are provided on the casing, a ventilation duct is formed in the casing, a fan assembly and a valve assembly are arranged in the ventilation duct, and the valve assembly is movably connected to the casing so that the valve assembly can move relative to the casing to change the structure of the ventilation duct, thereby making the first air outlet communicate with the air inlet side of the fan assembly, and the air outlet side of the fan assembly communicate with the second air outlet to drive the airflow from the first air outlet to the second air outlet to realize the function of introducing fresh air; or the second air outlet is communicated with the air inlet side of the fan assembly, and the air outlet side of the fan assembly is communicated with the first air outlet to drive the airflow from the second air outlet to the first air outlet to realize the function of discharging indoor air, thereby realizing the function of introducing fresh air and discharging stale air sharing the same ventilation duct, simplifying the ventilation structure, saving space, and improving the space utilization rate of the floor-standing air-conditioning indoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0039] Figure 1 It is a cross-sectional schematic diagram of the host introducing fresh air mode in the embodiment of the floor-standing type air conditioner indoor unit of the present invention;

[0040] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0041] Figure 3 It is a cross-sectional schematic diagram of a centrifugal fan located at the top in the fresh air mode in an embodiment of the present invention;

[0042] Figure 4 It is a cross-sectional schematic diagram of a centrifugal fan located at the bottom in the fresh air mode in an embodiment of the present invention;

[0043] Figure 5 It is a cross-sectional schematic diagram of the main unit exhaust mode in an embodiment of a floor-standing air conditioner indoor unit of the present invention;

[0044] Figure 6 for Figure 5 A partial enlarged view of point B in the middle;

[0045] Figure 7 It is a cross-sectional schematic diagram of a centrifugal fan located at the top in the exhaust mode in an embodiment of the present invention;

[0046] Figure 8 It is a cross-sectional schematic diagram of a centrifugal fan located at the bottom in the exhaust mode in an embodiment of the present invention;

[0047] Fig. 9 This is an appearance diagram of an embodiment of a floor-standing air conditioner indoor unit of the present invention;

[0048] Fig.10 It is a structural schematic diagram of an embodiment of the floor-standing type air conditioner indoor unit in which the sub-unit is separated from the main unit of the present invention.

[0049] Description of Figure Numbers:

[0050] Label name Label name 1000 Host 32 Second valve assembly 1 chassis 321 The third door 11 Accommodation cavity 322 The fourth door 101 The first outlet 41 First air passage 102 Second outlet 42 Second air passage 2 Fan components 43 Air inlet channel 21 Centrifugal fans 44 First cavity 211 Snail 45 Second cavity 211a Air outlet 5 Filter module 31 First valve assembly 2000 Handset 311 The first door 201 Mobile Components 312 The second door

[0051] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0055] The invention provides a floor-standing type air-conditioning indoor unit.

[0056] In the embodiment of the present invention, Figures 1 to 8 As shown, the floor-standing air-conditioning indoor unit includes a casing 1, a fan assembly 2 and a valve assembly.

[0057] A ventilation duct is formed in the housing 1, and the housing 1 is provided with a first air port 101 and a second air port 102 which are in communication with the ventilation duct; the first air port 101 is in communication with the outside, and the second air port 102 is in communication with the inside; the fan assembly 2 is arranged in the ventilation duct; the valve assembly can be movably connected to the housing 1, so that the ventilation duct can be switched between a fresh air mode and an exhaust air mode:

[0058] In the fresh air mode, the valve assembly connects the first air outlet 101 to the air inlet side of the fan assembly 2, and connects the second air outlet 102 to the air outlet side of the fan assembly, and the fan assembly 2 drives the air flow from the first air outlet 101 to the second air outlet 102;

[0059] In the exhaust mode, the valve assembly connects the first air outlet 101 with the air outlet side of the fan assembly 2, and connects the second air outlet 102 with the air inlet side of the fan assembly 2, and the fan assembly 2 drives the airflow from the second air outlet 102 to the first air outlet 101.

[0060] The floor-standing air conditioner indoor unit is mainly used to regulate the air in the indoor environment, such as cooling, heating, humidifying or dehumidifying the indoor air. The specific regulation method can refer to the existing technology of the floor-standing air conditioner indoor unit, which will not be repeated here. When adjusting the indoor air, in order to ensure the cooling and heating effects, the doors and windows need to be closed. Over a long period of time, the carbon dioxide in the room gradually increases and affects the quality of the indoor air, thereby causing discomfort to the user. Therefore, on this basis, a ventilation duct is formed in the casing 1 of the indoor unit of the floor-standing air conditioner in this embodiment, and a fan assembly 2 and a valve assembly are arranged in the ventilation duct. The casing 1 is provided with a first air outlet 101 and a second air outlet 102 connected to the ventilation duct. The first air outlet 101 is connected to the outdoors, and the second air outlet 102 is connected to the indoors. The structure of the ventilation duct is changed by the switching action of the valve assembly, so that the ventilation duct can switch between the fresh air module and the exhaust mode, thereby realizing the introduction of fresh air from the outdoors into the indoor environment, or discharging turbid air from the indoor environment to the outdoors, thereby realizing the replacement of indoor and outdoor air and improving the quality of indoor air.

[0061] In this embodiment, the valve assembly can move relative to the housing 1 to change the structure of the ventilation duct, thereby changing the flow direction of the airflow. The valve assembly can switch the ventilation duct between the fresh air mode and the exhaust mode: when in the fresh air mode, the valve assembly can connect the first air outlet 101 with the air inlet side of the fan assembly 2, and at the same time connect the air outlet side of the fan assembly 2 with the second air outlet 102, so as to achieve the effect of driving outdoor fresh air from the first air outlet 101 into the ventilation duct, and blow it into the room through the second air outlet 102, so as to achieve the effect of introducing outdoor fresh air. At this time, the first air outlet 101 plays the role of a fresh air inlet, and the second air outlet 102 plays the role of a fresh air outlet, and the ventilation duct is a fresh air duct;

[0062] When in the exhaust mode, the valve assembly can connect the first air outlet 101 with the air outlet side of the fan assembly 2, and at the same time connect the second air outlet 102 with the air inlet side of the fan assembly 2, thereby driving the indoor air from the second air outlet 102 into the ventilation duct, and blowing it to the outside through the first air outlet 101, so as to achieve the effect of exhausting the indoor air. At this time, the first air outlet 101 acts as an exhaust outlet, the second air outlet 102 acts as an exhaust inlet, and the ventilation duct is an exhaust duct.

[0063] It can be understood that the air duct for introducing fresh air and the air duct for exhausting air share the same ventilation duct, and share the same first air outlet 101 connected to the outdoors and the second air outlet 102 connected to the indoors, so there is no need to separately set up two air duct structures to respectively realize the functions of introducing fresh air and exhausting air, which simplifies the ventilation structure, saves space, and improves the reliability and space utilization of the air-conditioning indoor unit.

[0064] It should be noted that the ventilation duct is used as a fresh air duct or an exhaust air duct through the movement of the valve assembly relative to the housing 1, that is, the valve assembly switches to change the structure of the ventilation duct, and there is no specific restriction on the working mode of the fan assembly 2 itself, that is, the running direction of the fan assembly 2 in the fresh air and exhaust modes can remain unchanged or change, as long as it is ensured that in the fresh air mode, the first air outlet 101 is connected to the air inlet side of the fan assembly, and the air outlet side of the fan assembly is connected to the second air outlet 102; or in the exhaust mode, the second air outlet 102 is connected to the air inlet side of the fan assembly, and the air outlet side of the fan assembly is connected to the first air outlet 101. The specific setting position of the fan assembly 2 can be determined according to the actual situation. Optionally, the fan assembly 2 can be set at a position close to the first air outlet 101, in the middle of the ventilation duct, or close to the second air outlet 102. By arranging the fan assembly 2 in the ventilation duct, the fan assembly 2 occupies a small space, and the speed and air volume of the air flow are increased through the driving action, so that the ventilation efficiency is higher.

[0065] In actual application, the specific shape and specific position of the ventilation duct can be determined according to actual conditions, such as the ventilation duct can be extended up and down or extended front and back. The first air outlet 101 is connected to the outside, so the first air outlet 101 can be set at the rear side, bottom, left and right sides of the casing 1, etc. Optionally, considering that the first air outlet 101 needs to be connected to the outside, an external pipe can be connected to the first air outlet 101 for passing through a wall or a window to achieve the connection function with the outside. Optionally, the second air outlet 102 can be set on the front, left and right sides, or upper and lower sides of the casing 1. Optionally, in this embodiment, the second air outlet 102 can be set to correspond to the airflow outlet of the fan assembly 2, so that the airflow blown out through the fan assembly 2 can be blown out directly from the second air outlet 102, reducing the air flow path, thereby reducing the loss of air volume, so as to achieve the effect of increasing the fresh air volume.

[0066] In the floor-standing air conditioner indoor unit of the technical solution of the present invention, a first air outlet 101 communicating with the outside and a second air outlet 102 communicating with the indoor are provided on the casing 1, a ventilation duct is formed in the casing 1, a fan assembly 2 and a valve assembly are arranged in the ventilation duct, the valve assembly is movably connected to the casing 1, so that the valve assembly can move relative to the casing 1 to change the structure of the ventilation duct, thereby making the first air outlet 101 conduct with the air inlet side of the fan assembly 2, and the air outlet side of the fan assembly 2 conduct with the second air outlet 102. The first air vent 101 is connected to the second air vent 102 to drive the air flow from the first air vent 101 to the second air vent 102, so as to realize the function of introducing fresh air; or the second air vent 102 is connected to the air inlet side of the fan assembly 2, and the air outlet side of the fan assembly 2 is connected to the first air vent 101 to drive the air flow from the second air vent 102 to the first air vent 101, so as to realize the function of exhausting indoor air, thereby realizing the function of sharing the same ventilation duct for the introduction of fresh air and the exhaust of stale air, simplifying the ventilation structure, saving space, and improving the space utilization rate of the indoor unit of the floor-standing air conditioner.

[0067] In one embodiment of the present invention, please refer to Figures 2 to 4 , Figures 6 to 8 The valve assembly includes a first valve assembly 31 arranged on the air outlet side of the fan assembly 2; the first valve assembly 31 is used to switch between a fresh air mode connecting the air outlet side of the fan assembly 2 with the second air outlet 102 and an exhaust air mode connecting the air outlet side of the fan assembly 2 with the first air outlet 101.

[0068] It can be understood that for the fan assembly 2, the airflow flows from the air inlet side of the fan assembly 2 to the air outlet side of the fan assembly 2. When fresh air needs to be introduced, the air outlet side of the fan assembly 2 is connected to the second air outlet 102, so that the airflow can be blown from the second air outlet 102 to the indoor room; similarly, when exhaust air needs to be discharged to the outdoors, the air outlet side of the fan assembly 2 is connected to the first air outlet 101, so that the airflow can be blown from the first air outlet 101 to the outdoors. In this embodiment, by setting the first valve assembly 31 on the air outlet side of the fan assembly 2, the first valve assembly 31 can be moved and switched between different positions relative to the housing 1 to achieve the function of connecting the air outlet side of the fan assembly 2 with the first air outlet 101 or the second air outlet 102. In other words, the first valve assembly 31 plays a role in switching the flow direction of the outlet airflow on the air outlet side of the fan assembly 2, so as to achieve the function of blowing the outlet airflow to the indoor or outdoor by connecting different airflow channels.

[0069] On the basis of the above embodiment, the first valve assembly 31 serves to change the flow path of the outlet air flow. In order to further realize the function of introducing fresh air or exhausting indoor air, a second valve assembly 32 can be provided on the air inlet side of the fan assembly 2 to change the air inlet direction of the air inlet air flow of the fan assembly 2 through the switching and conducting effect of the second valve assembly 32, so as to realize the function of introducing outdoor fresh air into the fan assembly 2 or introducing indoor air into the fan assembly 2.

[0070] Specifically, in actual application, the first valve assembly 31 and the second valve assembly 32 can be used in a switching manner to achieve the function of introducing fresh air or exhausting indoor air:

[0071] In fresh air mode, please refer to Figures 2 to 4 , the second valve component 32 conducts the first air outlet 101 with the air inlet side of the fan assembly 2, and blocks the second air outlet 102 from the air inlet side of the fan assembly 2, so as to introduce outdoor fresh air into the fan assembly 2 through the first air outlet 101; at this time, the first valve component 31 can be switched to conduct the air outlet side of the fan assembly 2 and the second air outlet 102, so that the outdoor fresh air entering the fan assembly 2 can be blown out to the room through the second air outlet 102, thereby realizing the function of introducing fresh air. In this embodiment, the first air outlet 101, the fan assembly 2 and the second air outlet 102 are connected in sequence to form a fresh air duct.

[0072] In exhaust mode, see Figures 6 to 8 , the second valve assembly 32 conducts the second air outlet 102 with the air inlet side of the fan assembly 2, and blocks the first air outlet 101 with the air inlet side of the fan assembly 2, so as to introduce indoor air into the fan assembly 2 through the second air outlet 102; at this time, the first valve assembly 31 can be switched to conduct the air outlet side of the fan assembly 2 and the first air outlet 101, so that the indoor air entering the fan assembly 2 can be discharged to the outside through the first air outlet 101, thereby realizing the function of exhausting indoor air. In this embodiment, the second air outlet 102, the fan assembly 2 and the first air outlet 101 are connected in sequence to form an exhaust air duct.

[0073] In this embodiment, by setting a second valve assembly 32 on the air inlet side of the fan assembly 2 and setting a first valve assembly 31 on the air outlet side of the fan assembly 2, the switching function of the ventilation duct structure between the fresh air duct and the exhaust air duct is realized through the switching and coordination of the first valve assembly 31 and the second valve assembly 32.

[0074] Specifically, see Figures 2 to 4 , Figures 6 to 8The ventilation duct includes a first air passage 41 and a second air passage 42; the first air passage 41 connects the first air port 101 with the air inlet side of the fan assembly 2; the second air passage 42 connects the second air port 102 with the air inlet side of the fan assembly 2; the second valve assembly 32 is used to connect the first air passage 41 with the air inlet side of the fan assembly 2, or to connect the second air passage 42 with the air inlet side of the fan assembly 2.

[0075] It can be understood that when the second valve component 32 conducts the first air passage 41 and the air inlet side of the fan assembly 2, the second air passage 42 is isolated from the air inlet side of the fan assembly 2. At this time, the airflow entering the fan assembly 2 is the outdoor fresh air introduced from the first air outlet 101, that is, the fresh air mode. In this mode, the first valve component 31 conducts the air outlet side of the fan assembly 2 and the second air outlet 102, so that the fresh air flow is blown out from the second air outlet 102 to the room. It should be noted that in order to prevent the fresh air from the air outlet side of the fan assembly 2 from flowing into the second air passage 42, the air outlet side of the fan assembly 2 and the second air passage 42 can be blocked by the first valve component 31. Of course, in this embodiment, blocking the second air passage 42 and the air inlet side of the fan assembly 2 by the second valve component 32 can also prevent the airflow blown out by the fan assembly 2 from flowing back.

[0076] When the second valve assembly 32 connects the second air passage 42 with the air inlet side of the fan assembly 2, the first air passage 41 is isolated from the air inlet side of the fan assembly 2. At this time, the airflow entering the fan assembly 2 is the indoor air introduced from the second air outlet 102, which is the exhaust mode. In this mode, the first valve assembly 31 connects the air outlet side of the fan assembly 2 with the first air outlet 101, so that the indoor air is blown out to the outdoors from the first air outlet 101. It should be noted that in order to prevent the indoor air from the air outlet side of the fan assembly 2 from flowing back to the second air passage 42, the air outlet side of the fan assembly 2 and the second air passage 42 can be blocked by the first valve assembly 31, and the second air outlet 102 and the second air passage 42 are connected at the same time. In this embodiment, the air outlet side of the fan assembly 2 is actually connected to the first air passage 41, and the first air passage 41 and the air inlet side of the fan assembly 2 are blocked by the second valve assembly 32, thereby preventing the airflow blown out from the fan assembly 2 from flowing back into the fan assembly 2 via the first air passage 41.

[0077] In one embodiment of the present invention, please refer to Figure 3 , Figure 4 , Figure 7 as well as Figure 8The first valve assembly 31 includes a first door body 311 rotatably connected to the casing 1 , and the first door body 311 can be switched between a fresh air mode and an exhaust air mode to block or connect the air outlet side of the fan assembly 2 and the first air outlet 101 .

[0078] The first valve assembly 31 further includes a second door body 312 rotatably connected to the fan assembly 2 , and the second door body 312 can be switched between a fresh air mode and an exhaust air mode to block or connect the second air outlet 102 and the second air passage 42 .

[0079] It can be understood that the first valve assembly 31 plays a role in switching the airflow direction of the air outlet side of the fan assembly 2. The first valve assembly 31 includes a first door body 311 and a second door body 312. The first door body 311 is used to conduct or block the air outlet side of the fan assembly 2 and the first air outlet 101, so as to switch the airflow blown out of the fan assembly 2 to the first air outlet 101 or the second air outlet 102. The second door body 312 is used to conduct or block the second air outlet 102 and the second air passage 42, so as to conduct the air outlet side of the fan assembly 2 and the second air outlet 102 or conduct the second air outlet 102 and the second air passage 42, thereby realizing the switching function of the airflow from the fan assembly 2 to the second air outlet 102 or the airflow from the second air outlet 102 to the second air passage 42.

[0080] Furthermore, in the exhaust mode, the first door body 311 abuts against the second door body 312 to block the air outlet side of the fan assembly 2 from the second air outlet 102 .

[0081] Understandable, see Figure 3 and Figure 4 In the fresh air mode, the first door body 311 blocks the air outlet side of the fan assembly 2 from the first air outlet 101, and connects the air outlet side of the fan assembly 2 to the second air outlet 102. The second door body 312 blocks the second air outlet 102 from the second air passage 42, and connects the air outlet side of the fan assembly 2 to the second air outlet 102. At this time, an airflow channel for guiding the air outlet side of the fan assembly 2 and the second air outlet 102 is formed between the first door body 311 and the second door body 312. Optionally, the first door body 311 and the second door body 312 are arranged relative to each other to ensure the smoothness of the fresh air outlet airflow.

[0082] In exhaust mode, see Figure 7 and Figure 8The first door body 311 connects the air outlet side of the fan assembly 2 with the first air outlet 101, and the second door body 312 connects the second air outlet 102 with the second air passage 42. In order to prevent the air outlet airflow of the fan assembly 2 from leaking from the second air outlet 102, the first door body 311 and the second door body 312 can be arranged in abutment with each other to block the air outlet side of the fan assembly 2 from the second air outlet 102, thereby achieving the effect of preventing air leakage.

[0083] In one embodiment of the present invention, please refer to Figure 2 and Figure 6 The fan assembly 2 includes two centrifugal fans 21 arranged side by side up and down, and the air inlet sides of the two centrifugal fans 21 are arranged opposite to each other.

[0084] In this embodiment, by providing two centrifugal fans 21, the driving force of the airflow is increased and the ventilation efficiency is improved. It is understandable that the direction of the airflow driven by the centrifugal fan 21 is unchanged, and the valve assembly needs to be switched to connect or block the first air outlet 101 and the second air outlet 102 to the air inlet side or the air outlet side of the centrifugal fan 21, respectively, to achieve the function of introducing fresh air or exhausting indoor air.

[0085] In actual application, the arrangement of the two centrifugal fans 21 can be determined according to actual conditions, such as being arranged up and down, left and right, or staggered, etc. In this embodiment, the two centrifugal fans 21 are arranged side by side up and down, which reduces the occupied space and improves the compactness of the structure of the air-conditioning indoor unit. It should be noted that the two centrifugal fans 21 can operate independently of each other or in linkage, and the specific operation mode can be determined according to actual conditions. When the two centrifugal fans 21 operate independently of each other, the function of weak fresh air introduction or weak exhaust can be achieved by turning on only one centrifugal fan 21; or the function of strong fresh air introduction or strong exhaust can be achieved by turning on two centrifugal fans 21 at the same time.

[0086] Specifically, see Figures 2 to 8 The centrifugal fan 21 includes a volute 211 having an air outlet 211a. The first valve assembly 31 is arranged corresponding to the air outlet 211a of the volute 211 to connect the air outlet 211a with the second air outlet 102, or connect the air outlet 211a with the first air outlet 101.

[0087] For further information, see Figure 2 and Figure 6 An air inlet channel 43 is formed between the two centrifugal fans 21, the air inlet channel 43 is connected to the air inlet sides of the two centrifugal fans 21, and the first air passage 41 and the second air passage 42 are both connected to the air inlet channel 43;

[0088] The second valve assembly 32 includes a third door body 321 and a fourth door body 322 connected to the centrifugal fan 21, the third door body 321 is used to connect or block the first air passage 41 and the air inlet passage 43; the fourth door body 322 is used to connect or block the air inlet passage 43 and the second air passage 42.

[0089] It can be understood that the two centrifugal fans 21 are arranged up and down, and the air inlet sides of the two centrifugal fans are arranged opposite to each other, so that the gap between the two centrifugal fans 21 can form an air inlet channel 43 connected to both air inlet sides, and the first air outlet 101 is connected to the air inlet side of the centrifugal fan 21 through the connection between the first air passage 41 and the air inlet channel 43; the second air outlet 102 is connected to the air inlet side of the centrifugal fan 21 through the connection between the second air passage 42 and the air inlet channel 43.

[0090] In this embodiment, the third door body 321 is provided to connect or block the first air passage 41 and the air inlet passage 43 ; the fourth door body 322 is provided to connect or block the second air passage 42 and the air inlet passage 43 . In actual application, no matter in fresh air mode or exhaust mode, the opening and closing states of the third door body 321 and the fourth door body 322 are opposite, that is, when introducing fresh air, the third door body 321 is opened to connect the first air passage 41 and the air inlet passage 43, and the fourth door body 322 is closed to block the air inlet passage 43 and the second air passage 42, so that the fresh air flow can smoothly enter the centrifugal fan 21 from the air inlet passage 43, so as to achieve the effect of preventing air leakage; when exhausting indoor air, the fourth door body 322 is opened to connect the second air passage 42 and the air inlet passage 43, and the third door body 321 is closed to block the air inlet passage 43 and the first air passage 41, so as to prevent the outdoor air from being introduced into the air inlet passage 43, so as to ensure the exhaust efficiency.

[0091] To improve the quality of fresh air introduced, please refer to Figure 2 and Figure 6 In one embodiment of the present invention, the floor-standing air conditioner indoor unit further includes two filter modules 5, which are arranged in the air inlet channel 43 and are respectively arranged opposite to the air inlet sides of the two centrifugal fans 21, so that outdoor fresh air is introduced into the room after filtering to improve the quality of indoor air. Optionally, the filter module 5 is a HEPA net.

[0092] Furthermore, the filter module 5 is tilted relative to the horizontal direction; the two filter modules 5 are arranged at an angle, and the opening of the angle faces the third door body 321. By tilting the two filter modules 5 and arranging them at an angle with the opening facing the third door body 321, a certain gap is formed between the filter module 5 and the centrifugal fan 21 on the side close to the fourth door body 322, so that when fresh air is introduced, the outdoor fresh air will first pass through the filter module 5 and then enter the centrifugal fan 21, so as to achieve the effect of filtering the fresh air; at the same time, when the indoor air is discharged, the indoor air will directly enter the centrifugal fan 21 from the gap between the filter module 5 and the centrifugal fan 21, and will not pass through the filter module 5, thereby reducing the waste of the filter module 5 and extending the service life of the filter module 5.

[0093] In this embodiment, by providing a gap between the corresponding filter module 5 and the centrifugal fan 21, it is possible to filter the fresh air in the fresh air introduction mode, and in the exhaust mode, the airflow can directly enter the centrifugal fan 21 without passing through the filter module 5, thereby extending the service life.

[0094] In order to make the fresh air introduction more uniform, please refer to Figures 2 to 4 The air outlets 211a of the two volutes 21 of the centrifugal fans 21 face opposite directions; the casing 1 is provided with two second air outlets 102 corresponding to the air outlets 211a of the volute 211, and the two second air outlets 102 are respectively arranged on opposite sides of the casing 1.

[0095] It can be understood that when the floor-standing air conditioner indoor unit is located indoors, the two second air outlets 102 are respectively arranged on two opposite sides of the casing 1, which increases the area for introducing fresh air or exhausting air, speeds up the efficiency of introducing fresh air or exhausting air, and thus improves the ventilation efficiency.

[0096] To improve indoor air conditioning, please refer to Figure 1 , Figure 5 , Fig. 9 as well as Fig.10 In one embodiment of the present invention, a floor-standing air conditioner indoor unit includes a main unit 1000 and a sub-unit 2000. The housing 1, the ventilation duct, the fan assembly 2 and the valve assembly are all arranged in the main unit 1000. The main unit 1000 includes a heat exchange module arranged in the housing 1, and the sub-unit 2000 can be detachably connected to the main unit 1000.

[0097] In this embodiment, the main unit 1000 and the sub-unit 2000 can be cylindrical, elliptical, square or other shapes as a whole, which can be selected and designed according to actual use requirements, and are not limited here. The main unit 1000 extends in the up and down direction as a whole, and the main unit 1000 and the sub-unit 2000 can be set with equal cross-section or variable cross-section in the up and down direction. The shapes of the main unit 1000 and the sub-unit 2000 can be the same or different. An indoor heat exchange module is provided in the main unit 1000 for heat exchange and regulation of indoor air, such as cooling, heating, etc. The structure of the specific heat exchange module of the main unit 1000 can refer to the existing technology of the indoor unit of the floor-standing air conditioner, which will not be repeated here. The sub-unit 2000 has an air outlet function so as to be able to blow and adjust the indoor air. The sub-unit 2000 can be detachably connected to the main unit 1000, so that the adjustment of the indoor air by the sub-unit 2000 and the adjustment of the indoor air by the main unit 1000 can be interconnected or independent of each other, so that the heat exchange effect of the indoor heat exchange module will not be affected when the sub-unit 2000 is connected to or disconnected from the main unit 1000. At the same time, since the ventilation duct is arranged in the main unit 1000, the ventilation effect of the introduction of fresh air and the discharge of stale air will not be affected when the sub-unit 2000 is connected to or disconnected from the main unit 1000, thereby ensuring the heat exchange stability of the entire floor-standing air-conditioning indoor unit.

[0098] It can be understood that the connection mode of the sub-machine 2000 and the host 1000 can be determined according to the actual situation. The sub-machine 2000 can be connected to the inside of the host 1000 or to the outside of the host 1000. Optionally, the specific connection structure of the sub-machine 2000 and the host 1000 can be a snap connection, a magnetic connection or a plug connection. When the sub-machine 2000 is separated from the host 1000, the sub-machine 2000 can move indoors relative to the host 1000 to meet different indoor air conditioning requirements. For example, when the host 1000 performs heat exchange on a certain area of ​​the room, the sub-machine 2000 can relay air supply to other areas of the room, so that the air in other areas can also be quickly heat exchanged, thereby increasing the range of air heat exchange regulation; when the host 1000 does not start heat exchange, the sub-machine 2000 can independently supply air to regulate and play the role of independent air regulation; or when there are multiple people in the room, long-distance, fixed-point, and directional air supply can be achieved to improve the air treatment effect.

[0099] Optionally, the housing 1 of the host 1000 has a housing cavity 11 for accommodating the sub-machine 2000, and the sub-machine 2000 can be accommodated in the housing cavity 11 or detached from the housing cavity 11. In this embodiment, the housing cavity 11 can be located at the upper part, the middle part or the lower part of the housing 1. Generally, the shape of the housing cavity 11 is adapted to the shape of the sub-machine 2000, that is, when not in operation, the sub-machine 2000 is completely accommodated in the housing cavity 11. Of course, it is also possible to make part of the sub-machine 2000 located in the housing cavity 11 and part of it located outside the housing cavity 11, that is, part of it is exposed to the host 1000. By at least partially arranging the sub-machine 2000 in the housing cavity 11 of the housing 1, it is easier to maintain the overall consistency of the two after connection than splicing the sub-machine 2000 as a whole with the housing 1, thereby improving the user experience. In this embodiment, considering the convenience of connecting or disconnecting the handset 2000 from the housing 1, the accommodating chamber 11 is arranged at the lower part of the housing 1, and a moving assembly 201 is arranged at the bottom of the handset 2000, and the handset 2000 is driven to move by the moving assembly 201. Optionally, the moving assembly 201 can be a driving wheel plus a universal wheel, a roller plus a turntable, etc., so as to drive the handset 2000 to move and turn, thereby realizing multi-directional movement in the whole room.

[0100] In one embodiment of the present invention, please refer to Figure 1 , Figure 5 , Fig. 9 as well as Fig.10 The ventilation duct includes a first cavity 44 and a second cavity 45; the first cavity 44 is located at one side of the accommodating cavity 11, and the first air outlet 101 is communicated with the first cavity 44; the second cavity 45 is arranged above the accommodating cavity 11, the fan assembly 2 and the valve assembly are both arranged in the second cavity 45, and the second air outlet 102 is communicated with the second cavity 45.

[0101] In the fresh air mode, outdoor air enters the first cavity 44 through the first air outlet 101, then flows into the second cavity 45, and finally enters the indoor environment through the second air outlet 102. In the exhaust air mode, indoor air enters the second cavity 45 through the second air outlet 102, then flows into the first cavity 44, and finally is discharged to the outside through the first air outlet 101. The first cavity 44 is arranged on one side of the accommodating cavity 11, and the second cavity 45 is arranged above the accommodating cavity 11 to realize the function of making way for the sub-unit 2000, so that the floor-standing air conditioner indoor unit has a compact structure, achieving the function of ventilating the indoor air and the effect of smoothly storing the sub-unit 2000.

[0102] The present invention also proposes an air conditioner, which includes a floor-standing air-conditioning indoor unit. The specific structure of the floor-standing air-conditioning indoor unit refers to the above-mentioned embodiment. Since this air conditioner adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0103] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A floor-standing air conditioner indoor unit, characterized in that: include: A housing, wherein a ventilation duct is formed in the housing, and the housing is provided with a first air outlet and a second air outlet connected to the ventilation duct; the first air outlet is connected to the outside, and the second air outlet is connected to the inside; A fan assembly, wherein the fan assembly is arranged in the ventilation duct; as well as A valve assembly, wherein the valve assembly is movably connected to the housing to switch the ventilation duct between a fresh air mode and an exhaust air mode: In the fresh air mode, the valve assembly connects the first air outlet to the air inlet side of the fan assembly, and connects the second air outlet to the air outlet side of the fan assembly, and the fan assembly drives the airflow from the first air outlet to the second air outlet; In the exhaust mode, the valve assembly connects the first air outlet to the air outlet side of the fan assembly, and connects the second air outlet to the air inlet side of the fan assembly, and the fan assembly drives the airflow from the second air outlet to the first air outlet; The valve assembly includes a first valve assembly disposed on the air outlet side of the fan assembly; the first valve assembly is used to switch between a fresh air mode connecting the air outlet side of the fan assembly with the second air outlet and an exhaust air mode connecting the air outlet side of the fan assembly with the first air outlet; The first air outlet is arranged at the rear side, bottom, left side or right side of the housing.

2. The floor-standing air conditioner indoor unit according to claim 1, characterized in that: The valve assembly further comprises a second valve assembly disposed on the air inlet side of the fan assembly; In the fresh air mode, the second valve component connects the first air outlet to the air inlet side of the fan component, and blocks the second air outlet from the air inlet side of the fan component; In the exhaust mode, the second valve component connects the second air outlet and the air inlet side of the fan component, and blocks the first air outlet and the air inlet side of the fan component.

3. The floor-standing air conditioner indoor unit according to claim 2, characterized in that: The ventilation duct comprises: a first air passage, the first air passage communicating with the first air outlet and an air inlet side of the fan assembly; and A second air passage, wherein the second air passage is connected to the second air outlet and the air inlet side of the fan assembly; The second valve assembly is used to connect the first air passage and the air inlet side of the fan assembly, or to connect the second air passage and the air inlet side of the fan assembly.

4. The floor-standing air conditioner indoor unit according to claim 3, characterized in that: The first valve assembly includes a first door body rotatably connected to the housing, and the first door body can be switched between a fresh air mode and an exhaust air mode to block or connect the air outlet side of the fan assembly and the first air outlet.

5. The floor-standing type air conditioner indoor unit according to claim 4, characterized in that: The first valve assembly also includes a second door body rotatably connected to the fan assembly, and the second door body can be switched between a fresh air mode and an exhaust air mode to block or connect the second air outlet and the second air passage.

6. The floor-standing type air conditioner indoor unit according to claim 5, characterized in that: In the exhaust mode, the first door body abuts against the second door body to block the air outlet side of the fan assembly from the second air outlet and connect the air outlet side of the fan assembly to the first air outlet.

7. The floor-standing type air conditioner indoor unit according to any one of claims 3 to 6, characterized in that: The fan assembly includes two centrifugal fans arranged side by side up and down, and the air inlet sides of the two centrifugal fans are arranged opposite to each other.

8. The floor-standing type air conditioner indoor unit according to claim 7, characterized in that: The centrifugal fan includes a volute having an air outlet, and the first valve component is arranged corresponding to the air outlet of the volute to connect the air outlet with the second air outlet, or connect the air outlet with the first air outlet.

9. The floor-standing type air conditioner indoor unit according to claim 7, characterized in that: An air inlet channel is formed between the two centrifugal fans, the air inlet channel is connected to the air inlet sides of the two centrifugal fans, and the first air passage channel and the second air passage channel are both connected to the air inlet channel; The second valve assembly includes a third door body and a fourth door body rotatably connected to the centrifugal fan, the third door body is used to connect or block the first air passage and the air inlet passage; the fourth door body is used to connect or block the air inlet passage and the second air passage.

10. The floor-standing type air conditioner indoor unit according to claim 9, characterized in that: The floor-standing type air-conditioning indoor unit further comprises two filter modules, and the two filter modules are arranged in the air inlet passage and are respectively arranged opposite to the air inlet sides of the two centrifugal fans.

11. The floor-standing type air conditioner indoor unit according to claim 10, characterized in that: The filter modules are arranged obliquely relative to the horizontal direction; the two filter modules are arranged at an angle, and the opening of the angle faces the third door body.

12. The floor-standing type air conditioner indoor unit according to claim 11, characterized in that: There is a gap between the corresponding filter modules and the centrifugal fans.

13. The floor-standing type air conditioner indoor unit according to claim 8, characterized in that: The air outlets of the volutes of the two centrifugal fans face opposite directions; the casing is provided with two second air outlets corresponding to the air outlets of the volutes, and the two second air outlets are respectively arranged on opposite sides of the casing.

14. The floor-standing air conditioner indoor unit according to any one of claims 1 to 6, characterized in that: The floor-standing air conditioner indoor unit includes a main unit and a sub-unit. The casing, the ventilation duct, the fan assembly and the valve assembly are all arranged on the main unit. The main unit includes a heat exchange module arranged in the casing, and the sub-unit can be detachably connected to the main unit.

15. The floor-standing type air conditioner indoor unit according to claim 14, characterized in that: The lower part of the housing is provided with a receiving cavity, and the sub-unit can be received in the receiving cavity or separated from the receiving cavity.

16. The floor-standing type air conditioner indoor unit according to claim 15, characterized in that: The ventilation duct comprises: a first cavity, the first cavity being located at one side of the accommodating cavity, the first air outlet being in communication with the first cavity; and The second cavity is arranged above the accommodating cavity, the fan assembly and the valve assembly are both arranged in the second cavity, and the second air port is communicated with the second cavity.

17. An air conditioner, characterized in that: It comprises a floor-standing air-conditioning indoor unit as described in any one of claims 1 to 16.

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