Indoor unit and air conditioner

Abstract

The present application relates to the technical field of air conditioners, and discloses an indoor unit, comprising: a casing, wherein the upper panel, the lower panel and the rear panel are all provided with air inlets; a filter assembly, comprising a guide portion and a filter; the guide portion is arranged in the casing, and comprises a first guide section and a second guide section connected adjacently; a mounting opening is arranged at the lower portion of the front panel of the casing, and the first guide section is close to the mounting opening; the filter extends into the casing from the mounting opening, and moves along the first guide section and the second guide section in sequence; wherein the first guide section corresponds to the air inlet of the lower panel, so that the filter covers the air inlet of the lower panel; the second guide section corresponds to the air inlet of the upper panel and the air inlet of the rear panel, so that the filter covers the air inlet of the upper panel and the air inlet of the rear panel. The present application also discloses an air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, for example, to an indoor unit and an air conditioner. Background Art

[0002] Duct air conditioners are commonly known as duct units. Duct units are one-to-one units, including an outdoor unit and an indoor unit. During installation, the indoor unit and refrigerant pipes, drainage pipes, and line pipes are all hidden in the ceiling. Therefore, compared with wall-mounted air conditioners and cabinet air conditioners, duct units are more beautiful and space-saving, and the installation position is more flexible.

[0003] The related art discloses an indoor unit of a ducted air conditioner, comprising a housing and a heat exchanger. The housing is provided with an air inlet and an air outlet, and a filter is provided at the air inlet, and the heat exchanger is arranged in the housing. After the indoor air enters the housing from the air inlet, it exchanges heat with the heat exchanger, and finally blows back into the room from the air outlet, thereby achieving cooling or heating.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] When the indoor unit casing is provided with a plurality of air inlets, a filter needs to be installed separately for each air inlet, which makes it very inconvenient to remove and clean the filter. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide an indoor unit and an air conditioner, which solve the problem of inconvenience in removing filters when the indoor unit has multiple air inlets.

[0008] In some embodiments, the indoor unit comprises:

[0009] The casing has air inlets on its upper panel, lower panel and rear panel;

[0010] The filter assembly comprises a guide part and a filter screen; the guide part is arranged in the housing, and comprises a first guide section and a second guide section connected adjacently; a mounting opening is arranged at the lower part of the front panel of the housing, and the first guide section is close to the mounting opening;

[0011] The filter extends into the casing from the installation opening and moves along the first guide section and the second guide section in sequence; wherein the first guide section corresponds to the air inlet of the lower panel so that the filter covers the air inlet of the lower panel; the second guide section corresponds to the air inlet of the upper panel and the air inlet of the rear panel so that the filter covers the air inlet of the upper panel and the air inlet of the rear panel.

[0012] Optionally, the guide portion includes a body seat, and the body seat is provided with a linear groove and an arc groove connected to each other; wherein,

[0013] A linear groove is arranged along the lower panel of the housing and one end of the linear groove extends close to the mounting opening, serving as the first guide section;

[0014] One end of the arc groove is connected to the end of the linear groove away from the mounting opening, and the other end extends close to the upper panel of the housing to serve as the second guide section;

[0015] The side edge of the filter screen can move in the arc groove and the straight groove.

[0016] Optionally, the two guide parts are arranged adjacent to each other, and the straight grooves and arc grooves of the two guide parts are opposite to each other, so that the two opposite sides of the filter screen move along one of the guide parts respectively.

[0017] Optionally, when three or more of the guide parts are arranged in sequence, a group of the straight grooves and the arc grooves are respectively opened on both sides of the main body seat of at least the guide part located in the middle.

[0018] Optionally, a hook is provided on the top of the main body seat;

[0019] The upper panel of the housing is provided with a bayonet, and the bayonet is matched with the hook, so that the main body seat is connected to the bayonet of the upper panel through the hook.

[0020] Optionally, the upper panel of the housing is provided with a plurality of evenly distributed air inlets;

[0021] The bayonet is arranged between adjacent air inlets.

[0022] Optionally, a portion of the filter screen corresponding to the arc groove is made of a flexible material.

[0023] Optionally, one side of the filter is bent to form a handle, and a side of the filter opposite to the handle extends from the installation opening into the casing.

[0024] Optionally, a baffle is provided at the installation opening, and the installation opening is exposed after the baffle is removed.

[0025] In some embodiments, the air conditioner includes the indoor unit described in any of the above embodiments.

[0026] The indoor unit and air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0027] The air inlet on the upper side of the second chamber is set on the upper panel of the casing, the air inlet on the lower side of the second chamber is set on the lower panel of the casing, and the air inlet on the rear side of the second chamber is set on the rear panel of the casing. During installation, extend one side of the filter into the installation port and push it into the casing, so that the filter moves along the first guide section and the second guide section in sequence. After the filter moves to the extreme position, the part of the filter located in the first guide section covers the air inlet of the lower panel, and the part of the filter located in the second guide section covers the air inlet of the upper panel and the air inlet of the rear panel, thereby filtering the air passing through the above three air inlets. When disassembling, just pull the filter out of the installation port. In this way, the filter is easy to disassemble and can cover the air inlets on different panels of the casing.

[0028] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0030] Figure 1 is an exploded schematic diagram of an indoor unit provided by an embodiment of the present disclosure;

[0031] Figure 2 is a schematic diagram of an air inlet of an indoor unit provided in an embodiment of the present disclosure;

[0032] Figure 3 is a schematic diagram of the auxiliary air inlet structure of the indoor unit provided in an embodiment of the present disclosure;

[0033] Figure 4 is a schematic structural diagram of a mounting opening and a baffle of an indoor unit provided in an embodiment of the present disclosure;

[0034] Figure 5 is a schematic structural diagram of a guide portion provided by an embodiment of the present disclosure;

[0035] Figure 6 is a schematic diagram of the structure of the filter provided by an embodiment of the present disclosure;

[0036] Figure 7 is a structural schematic diagram of a motor base provided in an embodiment of the present disclosure;

[0037] Figure 8is a schematic diagram of the motor installation position provided by an embodiment of the present disclosure;

[0038] Fig. 9 It is a schematic diagram of the motor installation position at another angle provided by an embodiment of the present disclosure.

[0039] Reference numerals:

[0040] 100: housing; 101: first compartment; 102: second compartment; 103: front panel; 104: upper panel; 105: lower panel; 106: rear panel; 107: air inlet; 108: air outlet; 110: middle partition; 111: vent; 120: electric control compartment; 121: first partition wall; 122: second partition wall; 123: auxiliary air inlet;

[0041] 200: filter screen; 201: handle; 210: guide portion; 211: body seat; 212: straight groove; 213: arc groove; 214: hook; 220: installation port; 221: baffle;

[0042] 300: motor seat; 301: connecting plate; 302: supporting plate; 303: notch; 304: barb; 310: motor; 320: arc plate; 321: connecting hole; 322: ear plate; 330: handle; 340: inspection port. DETAILED DESCRIPTION

[0043] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0044] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0045] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have specific directions, or to be constructed and operated in specific directions. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure may be understood according to specific circumstances.

[0046] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0047] Unless otherwise stated, the term "plurality" means two or more.

[0048] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0049] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0050] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0051] Combination Figure 1-9As shown, the embodiment of the present disclosure provides an indoor unit, including a housing 100 and a filter assembly. The upper panel 104, the lower panel 105 and the rear panel 106 of the housing 100 are all provided with an air inlet 107. The filter assembly includes a guide portion 210 and a filter 200; the guide portion 210 is arranged in the casing 100, and the guide portion 210 includes a first guide section and a second guide section that are adjacent to each other; an installation opening 220 is provided at the lower part of the front panel 103 of the casing 100, and the first guide section is close to the installation opening 220; the filter 200 extends into the casing 100 from the installation opening 220, and moves along the first guide section and the second guide section in sequence; wherein the first guide section corresponds to the air inlet 107 of the lower panel 105 of the casing 100, so that the filter 200 covers the air inlet 107 of the lower panel 105; the second guide section corresponds to the air inlet 107 of the upper panel 104 and the air inlet 107 of the rear panel 106 of the casing 100, so that the filter 200 covers the air inlet 107 of the upper panel 104 and the air inlet 107 of the rear panel 106.

[0052] In the indoor unit provided by the embodiment of the present disclosure, the air inlet 107 on the upper side of the second chamber 102 is arranged on the upper panel 104 of the casing 100, the air inlet 107 on the lower side of the second chamber 102 is arranged on the lower panel 105 of the casing 100, and the air inlet 107 on the rear side of the second chamber 102 is arranged on the rear panel 106 of the casing 100. During installation, one side of the filter 200 is extended into the installation opening 220 and pushed into the casing 100, so that the filter 200 moves along the first guide section and the second guide section in sequence. After the filter 200 moves to the extreme position, the part of the filter 200 located in the first guide section covers the air inlet 107 of the lower panel 105, and the part of the filter 200 located in the second guide section covers the air inlet 107 of the upper panel 104 and the air inlet 107 of the rear panel 106, thereby filtering the air passing through the above three air inlets 107. When disassembling, the filter screen 200 can be pulled out from the installation opening 220. In this way, the filter screen 200 is easy to disassemble and can cover the air inlets 107 on different panels of the housing 100.

[0053] Alternatively, if Figure 5 As shown, the guide portion 210 includes a main body seat 211, and the main body seat 211 is provided with a connected straight groove 212 and an arc groove 213; wherein, the straight groove 212 is arranged along the lower panel 105 of the casing 100 and one end extends close to the installation port 220, serving as a first guide section; one end of the arc groove 213 is connected to the end of the straight groove 212 away from the installation port 220, and the other end extends close to the upper panel 104 of the casing 100, serving as a second guide section; the side of the filter 200 can move in the arc groove 213 and the straight groove 212.

[0054] In this embodiment, the fan unit includes a centrifugal fan, or a plurality of coaxially arranged centrifugal fans with their axes parallel to the lower panel 105 of the housing 100. The inner arc surface of the arc groove 213 faces the side of the centrifugal fan, and the upper part of the arc groove 213 corresponds to the upper panel 104, the middle part of the arc groove 213 corresponds to the rear panel 106, and the lower part of the arc groove 213 is connected to the linear groove 212. The groove widths of the linear groove 212 and the arc groove 213 are adapted to the thickness of the filter screen 200 to facilitate the installation of the filter screen 200.

[0055] Optionally, two guide portions 210 are disposed adjacent to each other, and the linear grooves 212 and arc grooves 213 of the two guide portions 210 are opposite to each other, so that two opposite sides of the filter screen 200 move along one guide portion 210 respectively.

[0056] In this embodiment, the front side of the filter 200 extends into the casing 100 from the installation opening 220, the left side of the filter 200 is located in the straight groove 212 of one guide portion 210, and the right side is located in the straight groove 212 of the other guide portion 210. In this way, the movement direction of the filter 200 is limited by the two guide portions 210, making the movement of the filter 200 smoother and more stable.

[0057] Optionally, when three or more guide parts 210 are arranged in sequence, a group of straight grooves 212 and arc grooves 213 are respectively opened on both sides of the main body seat 211 of at least the guide part 210 located in the middle.

[0058] In this embodiment, one side of the main body seat 211 located in the middle is provided with a group of straight grooves 212 and arc grooves 213, and the other side is provided with a group of straight grooves 212 and arc grooves 213, and the straight grooves 212 on both sides correspond to each other, and the arc grooves 213 on both sides correspond to each other. In the case where the housing 100 is long and there are many air inlets 107 on the upper panel 104, the lower panel 105 and the rear panel 106, multiple sections of filter screens 200 are required to filter the air. In this way, a section of filter screen 200 can be installed between adjacent guide portions 210.

[0059] For example, four guides 210 are arranged in sequence, and the body seat 211 of the guides 210 at both ends is provided with a set of straight grooves 212 and arc grooves 213 on one side facing the adjacent guides 210, and the body seat 211 of the two guides 210 in the middle is provided with a set of straight grooves 212 and arc grooves 213 on both sides. In this way, the three-stage filter screen 200 is respectively installed between the adjacent guides 210.

[0060] Optionally, a hook 214 is provided on the top of the main body base 211 ; the upper panel 104 of the housing 100 is provided with a bayonet, and the bayonet is adapted to the hook 214 , so that the main body base 211 is connected to the bayonet of the upper panel 104 through the hook 214 .

[0061] In this embodiment, the top of the body seat 211 is connected to the upper panel 104 of the housing 100 through the hook 214, and the bottom of the body seat 211 is connected to the lower panel 105 of the housing 100 through the bolt fastener, so that the body seat 211 is fixed in the housing 100. In this way, the fixing of the body seat 211 is simple and reliable, and the body seat 211 is prevented from shaking when the filter 200 is installed.

[0062] Optionally, the upper panel 104 of the housing 100 is provided with a plurality of evenly distributed air inlets 107 ; the bayonet is disposed between adjacent air inlets 107 .

[0063] Optionally, the portion of the filter screen 200 corresponding to the arc groove 213 is made of a flexible material, so that the filter screen 200 can move more smoothly from the straight groove 212 to the arc groove 213 .

[0064] Alternatively, if Figure 6 As shown, one side of the filter screen 200 is bent to form a handle 201 , and the side of the filter screen 200 opposite to the handle 201 extends into the housing 100 from the installation opening 220 .

[0065] In this embodiment, the front side of the filter 200 extends into the housing 100 from the installation opening 220, and the rear side of the filter 200 is vertically bent downward to form a handle 201, which is convenient for the user to push and pull the filter 200 through the handle 201. When the filter 200 moves to the limit position along the guide portion 210, the handle 201 can interfere with the installation opening 220 to prevent the filter 200 from moving further.

[0066] Alternatively, if Figure 4 As shown, a baffle 221 is provided at the installation opening 220, and the installation opening 220 is exposed after the baffle 221 is removed. The baffle 221 is fixed to the front panel 103 by bolt fasteners, and the filter screen 200 can be easily disassembled and assembled after the baffle 221 is removed.

[0067] Optionally, the indoor unit further includes a heat exchange component and a fan component. The fan component includes a fan unit, and the interior of the housing 100 is divided into a first chamber 101 and a second chamber 102 by a middle partition 110; the heat exchange component is arranged in the first chamber 101, and the first chamber 101 is provided with an air outlet 108; the fan unit is arranged in the second chamber 102, and is used to blow the air of the second chamber 102 into the first chamber 101 through the vent 111 of the middle partition 110; and the upper side, lower side, left side, right side and rear side of the second chamber 102 are respectively provided with air inlets 107, so as to increase the air intake of the second chamber 102 through five-way air intake.

[0068] The indoor unit provided in the embodiment of the present disclosure includes an indoor unit of a duct unit. After the indoor unit is hoisted, the first chamber 101 of the housing 100 faces the room, and the second chamber 102 is close to the wall. The front panel 103 of the housing 100 is located in the first chamber 101 and is provided with an air outlet 108. The rear panel 106 of the housing 100 is opposite to the front panel 103 and is located in the second chamber 102. Here, the rear side of the second chamber 102 refers to one side of the rear panel 106 of the housing 100. Figure 2 The upper side, lower side, left side, right side and rear side of the second chamber 102 are respectively provided with air inlets 107, so that five air inlets are formed to the second chamber 102, which effectively increases the air intake of the second chamber 102 and reduces the influence of obstacles such as walls and cabinets at various angles on the air intake of the indoor unit.

[0069] Optionally, an electric control room 120 is provided on the left or right side of the second room 102, and the electric control room 120 is used to install an electric control box; a partition wall with an air inlet 107 is provided on the left or right side of the second room 102 as one of the partition walls that enclose the electric control room 120, and at least one of the other partition walls that enclose the electric control room 120 is provided with an auxiliary air inlet 123.

[0070] In this embodiment, if Figure 1 As shown, an electric control room 120 is provided on the left or right side of the second room 102, and the electric control room 120 will block the air inlet 107 on the corresponding side of the second room 102. Under the action of the auxiliary air inlet 123, air first enters the electric control room 120 from the auxiliary air inlet 123, and then enters the second room 102 from the air inlet 107.

[0071] Alternatively, if Figure 3 As shown, the electric control room 120 includes a first partition wall 121 and a second partition wall 122. The first partition wall 121 is a partition wall provided with an air inlet 107 on the left or right side of the second room 102; the second partition wall 122 is perpendicular to the first partition wall 121 and parallel to the rear panel 106 of the housing 100, and is provided with an auxiliary air inlet 123.

[0072] In this embodiment, the air at the rear side of the housing 100 enters the electric control room 120 from the auxiliary air inlet 123, and then enters the second room 102 from the air inlet 107. An air circulation space is reserved between the electric control box and the first partition wall 121 and the second partition wall 122, and the circulating air can also cool the electric control box to ensure the normal operation of the electric control box.

[0073] Optionally, the air inlet 107 on the first partition wall 121 and the auxiliary air inlet 123 on the second partition wall 122 are arranged opposite to each other.

[0074] In this embodiment, the first partition wall 121 and the second partition wall 122 are vertically arranged, and the auxiliary air inlet 123 and the air inlet 107 are arranged opposite to each other, which can shorten the air flow path and allow the air to blow quickly from the auxiliary air inlet 123 to the air inlet 107.

[0075] Optionally, a plurality of air inlets 107 evenly arranged vertically are disposed on the first partition wall 121 ; and a plurality of auxiliary air inlets 123 evenly arranged vertically are disposed on the second partition wall 122 .

[0076] For example, Figure 3 As shown, two air inlets 107 are arranged on the first partition wall 121, and the two air inlets 107 are arranged up and down and are both configured as rectangular openings. Two auxiliary air inlets 123 are arranged on the second partition wall 122, and the two auxiliary air inlets 123 are arranged up and down and are both configured as rectangular openings, and the two auxiliary air inlets 123 correspond to the two air inlets 107 respectively.

[0077] In another exemplary embodiment, three air inlets 107 are arranged evenly up and down on the first partition wall 121 and are all configured as circular openings. Three auxiliary air inlets 123 are arranged evenly up and down on the second partition wall 122 and are all configured as circular openings, and the three auxiliary air inlets 123 correspond to the three air inlets 107, respectively.

[0078] Optionally, the air inlet 107 on the upper side of the second chamber 102 is disposed at the rear of the upper panel 104 of the housing 100 . The air inlet 107 on the lower side of the second chamber 102 is disposed at the lower panel 105 of the housing 100 , and the air inlet 107 on the rear side of the second chamber 102 is disposed at the rear panel 106 of the housing 100 .

[0079] In this embodiment, after the casing 100 is hoisted, its upper panel 104 is closer to the roof. The air inlet 107 is arranged at the rear of the upper panel 104, compared with being arranged at the middle and front of the upper panel 104, and the air intake volume is less affected by the wall.

[0080] Optionally, the air inlet 107 on the upper side of the second chamber 102 is configured as a strip-shaped opening.

[0081] In this embodiment, after the casing 100 is hoisted, its upper panel 104 is closer to the roof, and the air intake volume of the air inlet 107 on the upper side of the second chamber 102 is smaller than the air intake volume of the air inlet 107 on other sides. It is more appropriate to design the air inlet 107 on the upper side of the second chamber 102 as a narrow and long strip.

[0082] Optionally, a plurality of evenly arranged air inlets 107 are provided on the upper side and the lower side of the second chamber 102. In this way, increasing the number of air inlets 107 can increase the air intake volume.

[0083] Optionally, air inlet grilles are provided at the air inlet 107 on the upper side, lower side, left side, right side and rear side of the second chamber 102. In this way, foreign matter is prevented from entering the second chamber 102 from the air inlet 107 by the air inlet grilles.

[0084] Optionally, the air inlet 107 of the upper panel 104 of the housing 100 is called the first air inlet, the air inlet 107 of the lower panel 105 is called the second air inlet, the air inlet 107 of the rear panel 106 is called the third air inlet, the air inlet 107 connected to the electric control room 120 on one side is the fourth air inlet, and the air inlet 107 opposite to the fourth air inlet on the other side is the fifth air inlet. The air outlet area of ​​the air outlet 108 of the housing 100 is A, the air inlet area of ​​the first air inlet is 1 / 2A, the air inlet area of ​​the second air inlet is A, the air inlet area of ​​the third air inlet is A, the air inlet area of ​​the fourth air inlet is 1 / 4A, and the air inlet area of ​​the fifth air inlet is 1 / 4A. Here, the air inlet area of ​​the first air inlet refers to the sum of the air inlet areas of all the first air inlets opened on the upper panel 104, and the same is true for the air inlet areas of the remaining second to fifth air inlets.

[0085] In this embodiment, the appropriate air inlet 107 can be blocked or opened according to the limitation of the installation space to meet different application scenarios, so that the sum of the air inlet areas of the air inlets 107 on different panels is greater than or equal to the air outlet areas of the air outlet 108, thereby maintaining the indoor unit running at a normal wind speed.

[0086] For example, the duct unit is installed inside the TV cabinet, and there is no air intake space on the upper and lower sides of the housing 100. In this scenario, the first air inlet and the second air inlet are blocked, and the third air inlet, the fourth air inlet and the fifth air inlet are opened. In this way, the third air inlet mainly inlets air, and the fourth air inlet and the fifth air inlet assist in air intake.

[0087] In another exemplary embodiment, the duct machine is installed close to the ceiling, and there is no air inlet space on the upper side of the housing 100. In this scenario, the first air inlet is blocked, and the second to fifth air inlets are opened.

[0088] In another exemplary embodiment, the ducted air conditioner is installed in a bookcase, and there is no air inlet space at the rear and lower sides of the housing 100. In this scenario, the second air inlet and the third air inlet are blocked, and the first air inlet, the fourth air inlet and the fifth air inlet are opened.

[0089] Optionally, the first to fifth air inlets are all provided with wind shields, which are movably arranged and block or avoid the corresponding air inlet 107. The indoor unit has a breeze purification mode. In the breeze purification mode, the wind shields of the first air inlet, the second air inlet and the third air inlet are in a blocking state, and the wind shields of the fourth air inlet and the fifth air inlet are in an avoidance state. In this way, the sum of the air inlet areas of the fourth air inlet and the fifth air inlet is 1 / 2 of the air outlet area of ​​the air outlet 108, and the wind speed is relatively small at this time. And in conjunction with the high-efficiency air filters at the fourth air inlet and the fifth air inlet, a better purification effect can be achieved.

[0090] Optionally, the first to fifth air inlets are all provided with wind shields, which are movably arranged and shield or avoid the corresponding air inlet 107. The indoor unit provided in the disclosed embodiment meets the air intake requirements in different scenarios through a five-way air inlet design. However, since the second and fifth air inlets are located close to the air outlet 108, there is a possibility of air duct short circuit, that is, the cold air / hot air blown out of the air outlet 108 is sucked into the housing 100 from the second or fifth air inlet before it is blown into the room, which seriously affects the cooling / heating effect.

[0091] In this embodiment, in order to timely adjust the air intake strategy when an air duct short circuit occurs, a control method for an indoor unit is provided:

[0092] S01: Obtain the temperature difference △t1 between the air outlet and the fifth air inlet, obtain the temperature difference △t2 between the fifth air inlet and the fourth air inlet, and △t1-△t2=T;

[0093] S02: Determine whether the fifth air inlet is short-circuited according to T;

[0094] S03: When a short circuit occurs at the fifth air inlet, the wind shield corresponding to the fifth air inlet is controlled to be in a blocking state, and the wind shield corresponding to the fourth air inlet is controlled to be in a avoiding state.

[0095] Among them, temperature sensors are provided at the air outlet 108 and each air inlet 107 to sense the temperature of the corresponding air outlet 108 and air inlet 107. In this embodiment, when T is less than 0, it is determined that a short circuit occurs at the fifth air inlet. For example, the air conditioner operates in cooling mode, the fourth air inlet is blocked, the fifth air inlet is open, the temperature of the air outlet 108 is 20°C, and the average indoor temperature is 30°C. In this scenario, if no short circuit occurs, the temperatures of the fourth and fifth air inlets are close to the average indoor temperature of 30°C. At this time, △t1=10, △t2=0, and T=10. In this scenario, if a short circuit occurs, the temperature of the fifth air inlet is close to the temperature of the air outlet 108, which is 20°C, and the temperature of the fourth air inlet is 30°C. △t1=0,

[0096] △t2=10, T=-10. The air inlet areas of the fourth air inlet and the fifth air inlet are the same. If the fifth air inlet is short-circuited, the fourth air inlet is used to take in air, which can solve the short circuit of the air duct while maintaining the initial air intake volume. It can be understood that if the second air inlet is short-circuited, the third air inlet can be used to take in air, and the short circuit determination and the control of the wind shield are the same as the above control method.

[0097] Optionally, the embodiment of the present disclosure provides another control method of an indoor unit:

[0098] S04: Obtain the change rate △v1 of the temperature difference between the air outlet and the second air inlet, obtain the change rate △v2 of the indoor temperature, and △v1-△v2=V;

[0099] S05: Determine whether the second air inlet is short-circuited according to V;

[0100] S06: When a short circuit occurs at the second air inlet, the wind shield corresponding to the second air inlet is controlled to be in a blocking state, and the wind shield corresponding to the third air inlet is controlled to be in a avoiding state.

[0101] Among them, temperature sensors are provided at the air outlet 108 and each air inlet 107 to sense the temperature of the corresponding air outlet 108 and air inlet 107. In this embodiment, when V is outside the preset difference range, it is determined that the second air inlet is short-circuited. And the air inlet area of ​​the second air inlet and the third air inlet are the same. If the second air inlet is short-circuited, the third air inlet is used to inlet air, which can solve the short circuit of the air duct while maintaining the initial air intake volume. It can be understood that if the fifth air inlet is short-circuited, the fourth air inlet can be used to inlet air, and its short-circuit determination and control of the wind shield are the same as the above control method.

[0102] Optionally, the fan assembly also includes a motor part. The interior of the housing 100 is divided into a first chamber 101 and a second chamber 102 by a middle partition 110, and the first chamber 101 is close to the front panel 103 of the housing 100, and the second chamber 102 is close to the rear panel 106 of the housing 100; the motor part is arranged in the second chamber 102, and the motor part includes a motor 310 and a motor seat 300, and the motor seat 300 includes a supporting part and a fastening part, one side of the supporting part is connected to the rear panel 106, and the other side faces the front panel 103 and together with the fastening part, encloses the installation space of the motor 310; and the front panel 103 and the middle partition 110 are respectively provided with inspection ports 340 corresponding to the motor part, so that the motor part can be disassembled and assembled from the front side of the housing 100 through the two inspection ports 340.

[0103] In this embodiment, the supporting portion is connected to the rear panel 106, the motor 310 is installed in the installation space enclosed by the supporting portion and the fastening portion, and the motor 310 faces the front panel 103. Figure 8 and Fig. 9As shown, through the inspection opening 340 on the front panel 103 and the middle partition 110, the connection between the supporting part and the rear panel 106, and the connection between the supporting part and the fastening part can be easily released, so that the motor 310 can be easily disassembled and assembled.

[0104] Alternatively, if Figure 7 As shown, the supporting portion includes a connecting plate 301 and two supporting plates 302. The connecting plate 301 is connected to the rear panel 106 of the housing 100; the two supporting plates 302 are respectively arranged on both sides of the connecting plate 301; the first end of each supporting plate 302 is connected to the connecting plate 301, and the second end is suspended and provided with a notch 303; and the notches 303 of the two supporting plates 302 correspond to the two ends of the motor 310 respectively, and the two notches 303 and the fastening portion jointly enclose an installation space.

[0105] In this embodiment, the connecting plate 301 is connected to the rear panel 106 of the housing 100 by bolt fasteners. The notches 303 of the two supporting plates 302 are respectively matched with the two ends of the cylinder of the motor 310, and the cylinder of the motor 310 is placed in the notches 303 and abuts against the concave surface of the notches 303. The two ends of the cylinder of the motor 310 are cylindrical, and the notches 303 are arc-shaped. The diameter of the notches 303 is the same as the diameter of the two ends of the cylinder of the motor 310, and the arc length of the notches 303 is equal to half of the circumference of the cross section of the two ends of the cylinder of the motor 310.

[0106] Optionally, two sides of the connecting plate 301 are respectively bent vertically toward the front panel 103 of the housing 100 to form two supporting plates 302. In this way, the supporting plate 302 and the connecting plate 301 are integrally formed, reducing the connecting components between the supporting plate 302 and the connecting plate 301.

[0107] Optionally, the connecting plate 301 is connected to the rear panel 106 of the housing 100 via a vibration-damping seat. The motor 310 generates vibrations when it is running, and the vibration of the motor 310 can be reduced under the action of the vibration-damping seat.

[0108] Optionally, barbs 304 are respectively provided on both sides outside the recess 303; the fastening portion includes an arc plate 320, and connecting holes 321 are provided at both ends of the arc plate 320, and the connecting holes 321 are adapted to the barbs 304; the inner arc surface of the arc plate 320 and the concave surface of the recess 303 are arranged opposite to each other, and the two barbs 304 of the recess 303 respectively extend into the two connecting holes 321 of the arc plate 320; and an arc plate 320 is arranged for each recess 303.

[0109] In this embodiment, the notch 303 is configured to be arc-shaped and has the same radius as the arc plate 320. After the arc plate 320 is connected to the barb 304 through the connecting hole 321, the inner arc surface of the arc plate 320 and the concave surface of the notch 303 form a circle that matches the two ends of the cylinder of the motor 310, so as to serve as the installation space of the motor 310.

[0110] Optionally, the middle of the arc plate 320 is segmented, and the segment is bent in a direction away from the inner arc surface to form an ear plate 322, and the two ear plates 322 are fixed to each other by bolt fasteners.

[0111] In this embodiment, during assembly, the connection hole 321 of one arc plate 320 is first connected to the barb 304 on one side of the notch 303, and then the connection hole 321 of the other arc plate 320 is connected to the barb 304 on the other side of the notch 303, and finally the ear plates 322 of the two arc plates 320 are connected by bolt fasteners. By fastening the two ear plates 322, the inner arc surface of the arc plate 320 and the cylinder of the motor 310 can be closely fitted, thereby improving the stability of the motor 310 after being fixed.

[0112] Optionally, the motor base 300 further includes a handle 330. The handle 330 is constructed in a U shape; one end of the handle 330 is disposed between two ear plates 322 of one arc plate 320, and the other end is disposed between two ear plates 322 of another arc plate 320; the two ear plates 322 of each arc plate 320 are fixed to the corresponding end of the handle 330 by bolt fasteners. In this way, the U-shaped handle 330 makes it easier for users to take the entire motor unit.

[0113] Optionally, a slide rail is provided at the top or bottom of the second chamber 102, and the slide rail extends toward the inspection opening 340 of the middle partition 110; the supporting plate 302 is provided with a slider corresponding to the slide rail, and the slide rail can be slidably connected with the slide rail so that the motor part slides along the slide rail toward the inspection opening 340 of the middle partition 110 through the slider.

[0114] In this embodiment, the inspection opening 340 of the middle partition 110 and the inspection opening 340 of the front panel 103 can completely avoid the motor 310 and the motor seat 300. The slide rail is a linear guide rail, extending toward the inspection opening 340 of the middle partition 110. After the connection between the connecting plate 301 and the rear panel 106 is released, the motor seat 300 and the motor 310 can be slid to the inspection opening 340 of the middle partition 110. At this time, the motor part is closer to the front panel 103, which is convenient for the user's disassembly and assembly operation.

[0115] Exemplarily, the top of the second chamber 102, i.e., the upper panel 104 of the housing 100, is provided with a slide rail, and one end of the suspension rod is connected to the support plate 302, and the other end is connected to the slide rail through a slider. In this way, after the connection between the connecting plate 301 and the rear panel 106 is released, the motor part is suspended on the upper panel 104 of the housing 100 through the suspension rod. The handle 330 is pulled toward the middle partition 110, so that the motor part slides along the slide rail toward the inspection port 340 of the middle partition 110 through the slider on the suspension rod. Here, the slider is detachably connected to the support plate 302 through the suspension rod, so that the motor part is moved to the inspection port 340 of the middle partition 110, and then the connection between the suspension rod and the support plate 302 is released, and the motor 310 and the motor seat 300 can be taken out from the inspection port 340 at the same time.

[0116] In some embodiments, the present disclosure also provides an air conditioner, comprising the indoor unit described in any of the above embodiments.

[0117] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An indoor unit, characterized in that: include: A casing (100), wherein an upper panel (104), a lower panel (105) and a rear panel (106) are all provided with air inlets (107), which are respectively referred to as a first air inlet, a second air inlet and a third air inlet; and the casing (100) has a second chamber (102) and an electric control chamber (120), the second chamber (102) and the electric control chamber (120) are connected via a fourth air inlet, and a fifth air inlet is provided on a partition wall of the second chamber (102) opposite to the fourth air inlet; A filter assembly, comprising a guide portion (210) and a filter screen (200); the guide portion (210) is arranged in the housing (100), and comprises a first guide section and a second guide section that are adjacently connected; a mounting opening (220) is provided at the lower portion of the front panel (103) of the housing (100), and the first guide section is close to the mounting opening (220); The filter (200) extends from the installation opening (220) into the housing (100), and moves along the first guide section and the second guide section in sequence; wherein the first guide section corresponds to the air inlet (107) of the lower panel (105), so that the filter (200) covers the air inlet (107) of the lower panel (105); and the second guide section corresponds to the air inlet (107) of the upper panel (104) and the air inlet (107) of the rear panel (106), so that the filter (200) covers the air inlet (107) of the upper panel (104) and the air inlet (107) of the rear panel (106); In addition, in order to adjust the air intake strategy in time when a short circuit occurs in the air duct, first obtain the temperature difference △t1 between the air outlet and the fifth air inlet, obtain the temperature difference △t2 between the fifth air inlet and the fourth air inlet, and △t1-△t2=T; then, determine whether the fifth air inlet is short-circuited based on T; finally, in the event of a short circuit in the fifth air inlet, control the wind shield corresponding to the fifth air inlet to be in a blocking state, and control the wind shield corresponding to the fourth air inlet to be in an avoidance state.

2. The indoor unit according to claim 1, characterized in that: The guide portion (210) comprises a main body seat (211), and the main body seat (211) is provided with a linear groove (212) and an arc groove (213) which are connected to each other; wherein: A linear groove (212) is arranged along the lower panel (105) of the housing (100) and one end of the linear groove extends close to the installation opening (220), serving as the first guide section; One end of the arc groove (213) is connected to an end of the linear groove (212) away from the mounting opening (220), and the other end extends close to the upper panel (104) of the housing (100) to serve as the second guide section; The side edge of the filter screen (200) can move in the arc groove (213) and the straight groove (212).

3. The indoor unit according to claim 2, characterized in that: The two guide portions (210) are arranged adjacent to each other, and the straight grooves (212) and the arc grooves (213) of the two guide portions (210) are opposite to each other, so that the two opposite side edges of the filter screen (200) move along one of the guide portions (210) respectively.

4. The indoor unit according to claim 2, characterized in that: When three or more guide parts (210) are arranged in sequence, a group of straight grooves (212) and arc grooves (213) are respectively opened on both sides of the main body seat (211) of at least the guide part (210) located in the middle.

5. The indoor unit according to any one of claims 2 to 4, characterized in that: A hook (214) is provided on the top of the main body seat (211); The upper panel (104) of the housing (100) is provided with a bayonet, and the bayonet is adapted to the hook (214), so that the main body seat (211) is connected to the bayonet of the upper panel (104) through the hook (214).

6. The indoor unit according to claim 5, characterized in that: The upper panel (104) of the housing (100) is provided with a plurality of evenly distributed air inlets (107); The bayonet is arranged between adjacent air inlets (107).

7. The indoor unit according to any one of claims 2 to 4, characterized in that: The portion of the filter screen (200) corresponding to the arc groove (213) is made of a flexible material.

8. The indoor unit according to any one of claims 1 to 4, characterized in that: One side of the filter screen (200) is bent to form a handle (201), and the side of the filter screen (200) opposite to the handle (201) extends from the installation opening (220) into the housing (100).

9. The indoor unit according to any one of claims 1 to 4, characterized in that: A baffle (221) is provided at the installation opening (220), and the installation opening (220) is exposed after the baffle (221) is removed.

10. An air conditioner, characterized in that: It comprises the indoor unit as claimed in any one of claims 1 to 9.

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