Indoor unit and air conditioner

Abstract

The present application relates to the technical field of air conditioners, and discloses an indoor unit, including: a casing, the interior of which is divided into a first chamber and a second chamber by a middle partition; a heat exchange assembly disposed in the first chamber, and an air outlet is provided in the first chamber; a fan assembly disposed in the second chamber, including a fan part; the fan part is used to blow the air in the second chamber into the first chamber through the ventilation opening of the middle partition; and air inlets are respectively provided on the upper side, lower side, left side, right side and rear side of the second chamber, so as to increase the air intake of the second chamber through five-way air intake. In this way, five-way air intake into the second chamber is formed, effectively increasing the air intake of the second chamber and reducing the influence of obstacles such as walls and cabinets at various angles on the air intake of the indoor unit. The present application also discloses an air conditioner.

Description

Technical Field

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

[0002] The ducted air conditioner is commonly known as a ducted unit. The ducted unit adopts a one-to-one form, including an outdoor unit and an indoor unit. During installation, the indoor unit, refrigerant pipes, drainage pipes, and line pipes are all hidden in the ceiling. Therefore, compared with wall-mounted air conditioners and cabinet air conditioners, the ducted unit is more beautiful and space-saving, and the installation location is more flexible.

[0003] In the related art, an indoor unit of a ducted unit is disclosed, including a casing and a heat exchanger. The casing is provided with an air inlet and an air outlet, and the heat exchanger is arranged inside the casing. Indoor air enters the casing from the air inlet and exchanges heat with the heat exchanger, and finally blows back into the room from the air outlet, so as to achieve refrigeration or heating.

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

[0005] The ducted unit is only provided with an air inlet on the rear panel, and the air inlet volume is insufficient due to the obstruction of the wall or cabinet at the installation position. Summary of the Invention

[0006] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the following detailed description.

[0007] The embodiments of the present disclosure provide an indoor unit and an air conditioner, which solve the problem of insufficient air inlet volume caused by the obstruction of the wall or cabinet at the installation position of the air inlet of the indoor unit.

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

[0009] A casing, the interior of which is divided into a first chamber and a second chamber by a middle partition;

[0010] A heat exchange assembly, arranged in the first chamber, and the first chamber is provided with an air outlet;

[0011] A fan assembly, arranged in the second chamber, including a fan part; the fan part is used to blow the air in the second chamber into the first chamber through the ventilation opening of the middle partition; and air inlets are respectively arranged on the upper side, lower side, left side, right side, and rear side of the second chamber, so as to increase the air inlet volume of the second chamber through five-way air intake.

[0012] Optionally, an electric control compartment is provided on the left or right side of the second compartment, and the electric control compartment is used for installing an electric control box;

[0013] A partition wall with an air inlet on the left or right side of the second compartment serves as one of the partition walls enclosing the electric control compartment, and at least one of the other partition walls enclosing the electric control compartment is provided with an auxiliary air inlet.

[0014] Optionally, the electric control compartment includes:

[0015] A first partition wall, which is the partition wall with an air inlet on the left or right side of the second compartment;

[0016] A second partition wall, perpendicular to the first partition wall and parallel to the rear panel of the cabinet, is provided with the auxiliary air inlet.

[0017] Optionally, the air inlet on the first partition wall and the auxiliary air inlet on the second partition wall are arranged opposite to each other.

[0018] Optionally, a plurality of air inlets are uniformly arranged up and down on the first partition wall;

[0019] A plurality of the auxiliary air inlets are uniformly arranged up and down on the second partition wall.

[0020] Optionally, the air inlet on the upper side of the second compartment is arranged at the rear part of the upper panel of the cabinet.

[0021] Optionally, the air inlet on the upper side of the second compartment is configured as a strip-shaped opening.

[0022] Optionally, a plurality of uniformly arranged air inlets are provided on the upper side and the lower side of the second compartment.

[0023] Optionally, air inlet grilles are provided at the air inlets on the upper side, the lower side, the left side, the right side and the rear side of the second compartment.

[0024] In some embodiments, the air conditioner includes the indoor unit described in any of the above embodiments.

[0025] The indoor unit and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0026] After the indoor unit is hoisted, the first compartment of the cabinet faces the room interior, and the second compartment is close to the wall. The front panel of the cabinet is located in the first compartment and is provided with an air outlet, and the rear panel of the cabinet is opposite to the front panel and is located in the second compartment. Here, the rear side of the second compartment refers to one side of the rear panel of the cabinet. Air inlets are respectively provided on the upper side, the lower side, the left side, the right side and the rear side of the second compartment, so that five-way air intake into the second compartment is formed, effectively increasing the air intake volume of the second compartment and reducing the influence of obstacles such as walls and cabinets at various angles on the air intake volume of the indoor unit.

[0027] The above general description and the following description are only exemplary and explanatory, and are not intended to limit this application. Brief Description of the Drawings

[0028] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0029] Figure 1 is an exploded schematic view of an indoor unit provided by an embodiment of the present disclosure;

[0030] Figure 2 is a schematic view of an air inlet of an indoor unit provided by an embodiment of the present disclosure;

[0031] Figure 3 is a schematic view of the structure of an auxiliary air inlet of an indoor unit provided by an embodiment of the present disclosure;

[0032] Figure 4 is a schematic view of the structure of an installation opening and a baffle of an indoor unit provided by an embodiment of the present disclosure;

[0033] Figure 5 is a schematic view of the structure of a guiding part provided by an embodiment of the present disclosure;

[0034] Figure 6 is a schematic view of the structure of a filter provided by an embodiment of the present disclosure;

[0035] Figure 7 is a schematic view of the structure of a motor base provided by an embodiment of the present disclosure;

[0036] Figure 8 is a schematic view of the installation position of a motor provided by an embodiment of the present disclosure;

[0037] Figure 9 is a schematic view of the installation position of the motor from another angle provided by an embodiment of the present disclosure.

[0038] Reference Signs:

[0039] 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: Ventilation Opening; 120: Electric Control Compartment; 121: First Partition; 122: Second Partition; 123: Auxiliary Air Inlet;

[0040] 200: Filter; 201: Handle; 210: Guiding Part; 211: Body Base; 212: Linear Groove; 213: Arc Groove; 220: Installation Opening; 221: Baffle;

[0041] 300: Motor base; 301: Connection plate; 302: Support plate; 303: Notch; 304: Barb; 310: Motor; 320: Arc plate; 321: Connection hole; 322: Ear plate; 330: Grip; 340: Maintenance opening. Detailed implementation manners

[0042] In order to more comprehensively understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are only for reference and explanation purposes and are not used to limit the embodiments of the present disclosure. In the following technical descriptions, for the convenience of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0043] In the embodiments of the present disclosure, terms such as "first" and "second" in the description and claims of the embodiments and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0044] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", and "rear" is based on the orientation or positional relationship 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 used to limit that the indicated devices, elements, or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0045] In addition, the terms "set", "connect", and "fix" should be understood in a broad sense. For example, "connect" 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 directly connected, or indirectly connected through an intermediate medium, or there can also be internal communication 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.

[0046] Unless otherwise specified, the term "plural" means two or more.

[0047] In the embodiments of the present disclosure, the character " / " indicates an "or" relationship between the preceding and following objects. For example, A / B means: A or B.

[0048] The term "and / or" is an associative relationship describing an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, the three relationships of A and B.

[0049] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0050] Combined Figures 1-9 As shown, the embodiments of the present disclosure provide an indoor unit, including a housing 100, a heat exchange component, and a fan component. Among them, the interior of the housing 100 is separated by a middle partition 110 into a first chamber 101 and a second chamber 102; the heat exchange component is disposed in the first chamber 101, and the first chamber 101 is provided with an air outlet 108; the fan component is disposed in the second chamber 102 and includes a fan part; the fan part is used to blow the air in the second chamber 102 into the first chamber 101 through the ventilation opening 111 of the middle partition 110; and air inlets 107 are respectively provided on the upper side, lower side, left side, right side, and rear side of the second chamber 102, so as to increase the air intake volume of the second chamber 102 through five-way air intake.

[0051] The indoor unit provided by the embodiments of the present disclosure includes an indoor unit of an air duct machine. After the indoor unit is hoisted, the first chamber 101 of the housing 100 faces the interior, 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, and 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. As Figure 2 shown, air inlets 107 are respectively provided on the upper side, lower side, left side, right side, and rear side of the second chamber 102, so that five-way air intake into the second chamber 102 is formed, effectively increasing the air intake volume of the second chamber 102 and reducing the influence of obstacles such as walls and cabinets at various angles on the air intake volume of the indoor unit.

[0052] Optionally, the fan part includes one or more centrifugal fans. Moreover, the axes of the multiple centrifugal fans are coaxially arranged and parallel to the bottom panel 105 of the housing 100.

[0053] Optionally, an electric control chamber 120 is provided on the left side or the right side of the second chamber 102, and the electric control chamber 120 is used to install an electric control box; a partition wall with an air inlet 107 on the left side or the right side of the second chamber 102 is used as one of the partition walls enclosing the electric control chamber 120, and at least one of the other partition walls enclosing the electric control chamber 120 is provided with an auxiliary air inlet 123.

[0054] In this embodiment, as Figure 1 shown, an electric control compartment 120 is provided on the left or right side of the second compartment 102, and the electric control compartment 120 will block the air inlet 107 on the corresponding side of the second compartment 102. Under the action of the auxiliary air inlet 123, air first enters the electric control compartment 120 from the auxiliary air inlet 123, and then enters the second compartment 102 from the air inlet 107.

[0055] Optionally, as Figure 3 shown, the electric control compartment 120 includes a first partition wall 121 and a second partition wall 122. Among them, the first partition wall 121 serves as the partition wall with the air inlet 107 on the left or right side of the second compartment 102; the second partition wall 122 is perpendicular to the first partition wall 121 and parallel to the rear panel 106 of the cabinet 100, and is provided with an auxiliary air inlet 123.

[0056] In this embodiment, the air at the rear side of the cabinet 100 enters the electric control compartment 120 from the auxiliary air inlet 123, and then enters the second compartment 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 flowing air can also play a role in cooling the electric control box to ensure the normal operation of the electric control box.

[0057] 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.

[0058] In this embodiment, the first partition wall 121 and the second partition wall 122 are perpendicularly arranged, and the auxiliary air inlet 123 and the air inlet 107 are arranged opposite to each other, so that the air circulation path can be shortened and the air can quickly blow from the auxiliary air inlet 123 to the air inlet 107.

[0059] Optionally, a plurality of air inlets 107 are uniformly arranged up and down on the first partition wall 121; a plurality of auxiliary air inlets 123 are uniformly arranged up and down on the second partition wall 122.

[0060] Exemplarily, as Figure 3 shown, two air inlets 107 are provided 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 provided 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 and the two air inlets 107 correspond to each other respectively.

[0061] In another example, three air inlets 107 are provided on the first partition wall 121. The three air inlets 107 are evenly arranged vertically and are all configured as circular openings. Three auxiliary air inlets 123 are provided on the second partition wall 122. The three auxiliary air inlets 123 are evenly arranged vertically and are all configured as circular openings, and the three auxiliary air inlets 123 correspond to the three air inlets 107 respectively.

[0062] Optionally, the air inlet 107 on the upper side of the second chamber 102 is provided 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 provided on the lower panel 105 of the housing 100, and the air inlet 107 on the rear side of the second chamber 102 is provided on the rear panel 106 of the housing 100.

[0063] In this embodiment, after the housing 100 is hoisted, its upper panel 104 is relatively close to the roof. When the air inlet 107 is provided at the rear of the upper panel 104, the influence of the wall on the air intake volume is smaller than that when it is provided in the middle and front of the upper panel 104.

[0064] Optionally, the air inlet 107 on the upper side of the second chamber 102 is configured as a strip-shaped opening.

[0065] In this embodiment, after the housing 100 is hoisted, its upper panel 104 is relatively close to the roof. The air intake volume of the air inlet 107 on the upper side of the second chamber 102 is smaller than that of the air inlets 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 long and narrow strip-shaped opening.

[0066] 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, the air intake volume is increased by increasing the number of air inlets 107.

[0067] Optionally, air inlet grilles are provided at the air inlets 107 on the upper side, the lower side, the left side, the right side and the rear side of the second chamber 102. In this way, foreign objects are blocked from entering the second chamber 102 through the air inlet grilles.

[0068] Optionally, the air inlet 107 on the upper panel 104 of the cabinet 100 is referred to as the first air inlet, the air inlet 107 on the lower panel 105 is referred to as the second air inlet, the air inlet 107 on the rear panel 106 is referred to as the third air inlet, the air inlet 107 communicating with the electrical control chamber 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 cabinet 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 applies to the air inlet areas of the remaining second to fifth air inlets.

[0069] In this embodiment, the appropriate air inlets 107 can be selected to be blocked or opened according to the limitations 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 area of the air outlet 108, maintaining the indoor unit to operate at a normal wind speed.

[0070] Exemplarily, the air duct machine is installed inside the TV cabinet, and there is no air inlet space on the upper and lower sides of the cabinet 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 admits air, and the fourth air inlet and the fifth air inlet assist in admitting air.

[0071] Another exemplarily, the air duct machine is installed against the ceiling, and there is no air inlet space on the upper side of the cabinet 100. In this scenario, the first air inlet is blocked, and the second to fifth air inlets are opened.

[0072] Another exemplarily, the air duct machine is installed inside the bookcase, and there is no air inlet space on the rear and lower sides of the cabinet 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.

[0073] Optionally, wind deflectors are provided at the first to fifth air inlets. The wind deflectors are movably arranged and block or avoid the corresponding air inlets 107. The indoor unit has a gentle wind purification mode. In the gentle wind purification mode, the wind deflectors of the first air inlet, the second air inlet, and the third air inlet are in a blocking state, and the wind deflectors of the fourth air inlet and the fifth air inlet are in an avoiding 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 cooperation with the high-efficiency air filters at the fourth air inlet and the fifth air inlet, a better purification effect can be achieved.

[0074] Optionally, wind deflectors are provided at each of the first to fifth air inlets. The wind deflectors are movably arranged and block or avoid the corresponding air inlets 107. The indoor unit provided by the embodiments of the present disclosure meets the air intake requirements in different scenarios through a five-way air intake design. However, at the same time, due to the positions of the second air inlet and the fifth air inlet being close to the air outlet 108, there is a possibility of air duct short circuit, that is, the cold air / hot air blown out from the air outlet 108 is sucked into the casing 100 from the second air inlet or the fifth air inlet before it is blown into the room, seriously affecting the refrigeration / heating effect.

[0075] In this embodiment, in order to adjust the air intake strategy in time when an air duct short circuit occurs, a control method for an indoor unit is provided:

[0076] 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;

[0077] S02: Determine whether the fifth air inlet is short-circuited according to T;

[0078] S03: When the fifth air inlet is short-circuited, control the wind deflector corresponding to the fifth air inlet to be in a blocked state and the wind deflector corresponding to the fourth air inlet to be in an avoided state.

[0079] Wherein, temperature sensors are provided at the air outlet 108 and each air inlet 107 to sense the temperatures of the corresponding air outlet 108 and air inlet 107. In this embodiment, it is determined that the fifth air inlet is short-circuited when T is less than 0. For example, when the air conditioner operates in the cooling mode, the fourth air inlet is blocked and 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 there is no short circuit, the temperatures of the fourth air inlet and the fifth air inlet are close to the average indoor temperature of 30°C. At this time, △t1 = 10, △t2 = 0, and T = 10. In this scenario, if there is a short circuit, 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, △t2 = 10, and T = -10. And the air intake areas of the fourth air inlet and the fifth air inlet are the same. If the fifth air inlet is short-circuited and the fourth air inlet is used for air intake, the initial air intake volume can be maintained while solving the air duct short circuit. It can be understood that if the second air inlet is short-circuited, the third air inlet can be used for air intake, and its short-circuit determination and control of the wind deflector are the same as the above control method.

[0080] Optionally, the embodiments of the present disclosure provide another control method for an indoor unit:

[0081] 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;

[0082] S05: Determine whether the second air inlet is short-circuited according to V;

[0083] 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.

[0084] 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.

[0085] Optionally, the indoor unit further includes a filter assembly. The filter assembly includes a guide portion 210 and a filter 200; the guide portion 210 is disposed in the housing 100, and the guide portion 210 includes a first guide section and a second guide section connected adjacently; 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 into the housing 100 from the mounting 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 housing 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 housing 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.

[0086] In this embodiment, the air inlet 107 on the upper side of the second chamber 102 is arranged on the upper panel 104 of the housing 100, the air inlet 107 on the lower side of the second chamber 102 is arranged on the lower panel 105 of the housing 100, and the air inlet 107 on the rear side of the second chamber 102 is arranged on the rear panel 106 of the housing 100. When installing, one side of the filter 200 is extended into the installation opening 220 and pushed into the housing 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 200 can be pulled out from the installation opening 220. In this way, the filter 200 is easy to assemble and disassemble and can cover the air inlets 107 on different panels of the housing 100 .

[0087] Optionally, as Figure 5 shown, the guiding portion 210 includes a body base 211, and the body base 211 is provided with a linearly connected straight groove 212 and an arc groove 213; wherein, the straight groove 212 is arranged along the lower panel 105 of the housing 100 and one end extends close to the installation opening 220, serving as the first guiding section; one end of the arc groove 213 is connected to the end of the straight groove 212 far from the installation opening 220, and the other end extends close to the upper panel 104 of the housing 100, serving as the second guiding section; the side edge of the filter screen 200 can move within the arc groove 213 and the straight groove 212.

[0088] In this embodiment, the fan assembly includes a centrifugal fan, or multiple centrifugal fans arranged coaxially 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 straight groove 212. The groove widths of the straight 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.

[0089] Optionally, two guiding portions 210 are arranged adjacent to each other, and the straight grooves 212 of the two guiding portions 210 face each other, and the arc grooves 213 face each other, so that the two opposite side edges of the filter screen 200 move along one guiding portion 210 respectively.

[0090] In this embodiment, the front side edge of the filter screen 200 extends into the housing 100 from the installation opening 220, the left side edge of the filter screen 200 is located in the straight groove 212 of one guiding portion 210, and the right side edge is located in the straight groove 212 of the other guiding portion 210. In this way, the movement direction of the filter screen 200 is limited by the two guiding portions 210 to make the movement of the filter screen 200 smoother and more stable.

[0091] Optionally, when three or more guiding portions 210 are arranged in sequence, at least the two sides of the body base 211 of the guiding portion 210 located in the middle are respectively provided with a set of straight grooves 212 and arc grooves 213.

[0092] In this embodiment, one side of the body base 211 located in the middle is provided with a set of straight grooves 212 and arc grooves 213, and the other side is provided with a set 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 the filter screen 200 are required to filter air. In this way, a section of the filter screen 200 can be installed between adjacent guiding portions 210.

[0093] Exemplarily, four guiding parts 210 are arranged in sequence. A set of straight grooves 212 and arc grooves 213 are formed on one side of the body base 211 of the guiding parts 210 at both ends facing the adjacent guiding parts 210. A set of straight grooves 212 and arc grooves 213 are respectively arranged on both sides of the body base 211 of the two middle guiding parts 210. In this way, the three filter meshes 200 are respectively installed between adjacent guiding parts 210.

[0094] Optionally, a hook 214 is provided at the top of the body base 211; a bayonet is provided on the upper panel 104 of the casing 100, and the bayonet is adapted to the hook 214 so that the body base 211 is clamped to the bayonet of the upper panel 104 through the hook 214.

[0095] In this embodiment, the top of the body base 211 is connected to the upper panel 104 of the casing 100 through the hook 214, and the bottom of the body base 211 is connected to the lower panel 105 of the casing 100 through a bolt fastener, so as to fix the body base 211 in the casing 100. In this way, the fixing of the body base 211 is simple and reliable, preventing the body base 211 from shaking when installing the filter mesh 200.

[0096] Optionally, a plurality of uniformly distributed air inlets 107 are provided on the upper panel 104 of the casing 100; the bayonet is arranged between adjacent air inlets 107.

[0097] Optionally, the part of the filter mesh 200 corresponding to the arc groove 213 is made of a flexible material. In this way, the filter mesh 200 moves more smoothly from the straight groove 212 to the arc groove 213.

[0098] Optionally, as Figure 6 shown, one side edge of the filter mesh 200 is bent to form a handle 201, and the side edge of the filter mesh 200 opposite to the handle 201 extends into the casing 100 from the installation opening 220.

[0099] In this embodiment, the front side edge of the filter mesh 200 extends into the casing 100 from the installation opening 220, and the rear side edge of the filter mesh 200 is bent vertically downward to form a handle 201, which is convenient for the user to push and pull the filter mesh 200 through the handle 201. And when the filter mesh 200 moves to the limit position along the guiding part 210, the handle 201 can interfere with the installation opening 220 to prevent the filter mesh 200 from moving further.

[0100] Optionally, as Figure 4 shown, a baffle 221 is provided at the installation opening 220, and the installation opening 220 is exposed after removing the baffle 221. The baffle 221 is fixed to the front panel 103 through a bolt fastener, and the filter mesh 200 can be conveniently disassembled and assembled after removing the baffle 221.

[0101] Optionally, as Figure 8 and Figure 9As shown, the fan assembly further includes a motor section; the motor section includes a motor 310 and a motor base 300. The motor base 300 includes a supporting portion and a fastening portion. One side of the supporting portion is connected to the rear panel 106, and the other side faces the front panel 103 and jointly defines an installation space for the motor 310 with the fastening portion. Moreover, the front panel 103 and the middle partition 110 are respectively provided with maintenance openings 340 corresponding to the motor section, so as to disassemble and assemble the motor section through the two maintenance openings 340 from the front side of the casing 100.

[0102] In this embodiment, the supporting portion is connected to the rear panel 106. The motor 310 is installed in the installation space jointly defined by the supporting portion and the fastening portion, and the motor 310 faces the front panel 103. Through the maintenance openings 340 on the front panel 103 and the middle partition 110, the connection between the supporting portion and the rear panel 106 and the connection between the supporting portion and the fastening portion can be conveniently released, so as to conveniently disassemble and assemble the motor 310.

[0103] Optionally, as Figure 7 shown, the supporting portion includes a connecting plate 301 and two supporting plates 302. Among them, the connecting plate 301 is connected to the rear panel 106 of the casing 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 respectively correspond to both ends of the motor 310, and the two notches 303 and the fastening portion jointly define the installation space.

[0104] In this embodiment, the connecting plate 301 is connected to the rear panel 106 of the casing 100 through bolt fasteners. The notches 303 of the two supporting plates 302 respectively match both ends of the cylinder body of the motor 310. After the cylinder body of the motor 310 is placed in the notch 303, it abuts against the concave surface of the notch 303. Both ends of the cylinder body of the motor 310 are cylindrical, and the notch 303 is arc-shaped. The diameter of the notch 303 is the same as the diameter of both ends of the cylinder body of the motor 310, and the arc length of the notch 303 is equal to one-half of the cross-sectional perimeter of both ends of the cylinder body of the motor 310.

[0105] Optionally, both sides of the connecting plate 301 are vertically bent towards the front panel 103 of the casing 100 to form two supporting plates 302. In this way, the supporting plates 302 and the connecting plate 301 are integrally formed, reducing the connecting members between the supporting plates 302 and the connecting plate 301.

[0106] Optionally, the connecting plate 301 is connected to the rear panel 106 of the casing 100 through a shock absorber. When the motor 310 operates, vibrations will be generated, and the vibrations of the motor 310 can be reduced under the action of the shock absorber.

[0107] Optionally, barbs 304 are respectively provided on both sides outside the notch 303; the fastening part includes an arc plate 320, connection holes 321 are provided at both ends of the arc plate 320, and the connection holes 321 are adapted to the barbs 304; the inner arc surface of the arc plate 320 and the concave surface of the notch 303 are arranged opposite to each other, and the two barbs 304 of the notch 303 respectively extend into the two connection holes 321 of the arc plate 320; one arc plate 320 is provided for each notch 303.

[0108] In this embodiment, the notch 303 is configured as an arc and has the same radius as the arc plate 320. And after the arc plate 320 is connected to the barb 304 through the connection hole 321, the inner arc surface of the arc plate 320 and the concave surface of the notch 303 form a circle adapted to both ends of the cylinder of the motor 310 to serve as the installation space of the motor 310.

[0109] Optionally, the middle part of the arc plate 320 is segmented, and the segmented part is bent away from the inner arc surface to form ear plates 322, and the two ear plates 322 are fixed by bolt fasteners.

[0110] In this embodiment, during assembly, first connect the connection hole 321 of one arc plate 320 to the barb 304 on one side of the notch 303, then connect the connection hole 321 of the other arc plate 320 to the barb 304 on the other side of the notch 303, and finally connect the ear plates 322 of the two arc plates 320 through 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 attached to improve the stability after the motor 310 is fixed.

[0111] Optionally, the motor base 300 further includes a handle 330. The handle 330 is configured as a U shape; one end of the handle 330 is arranged between the two ear plates 322 of one arc plate 320, and the other end is arranged between the two ear plates 322 of the other arc plate 320; the two ear plates 322 of each arc plate 320 and the corresponding end of the handle 330 are fixed by bolt fasteners. In this way, the U-shaped handle 330 facilitates the user to pick up the overall motor part.

[0112] Optionally, a slide rail is provided at the top or bottom of the second chamber 102, and the slide rail extends towards the inspection port 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 form a sliding fit connection with the slide rail, so that the motor part slides along the slide rail towards the inspection port 340 of the middle partition 110 through the slider.

[0113] In this embodiment, the maintenance openings 340 of the middle partition plate 110 and the front panel 103 can completely avoid the motor 310 and the motor base 300. The slide rail is a linear guide rail that extends towards the maintenance opening 340 of the middle partition plate 110. After disconnecting the connection between the connecting plate 301 and the rear panel 106, the motor base 300 and the motor 310 can be slid to the maintenance opening 340 of the middle partition plate 110. At this time, the motor part is closer to the front panel 103, facilitating the disassembly and assembly operations for the user.

[0114] Exemplarily, the upper panel 104 of the casing 100, which is the top of the second compartment 102, is provided with a slide rail. 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. Thus, after disconnecting the connection between the connecting plate 301 and the rear panel 106, the motor part is hoisted on the upper panel 104 of the casing 100 through the suspension rod. Pull the handle 330 towards the middle partition plate 110, so that the motor part slides along the slide rail towards the maintenance opening 340 of the middle partition plate 110 through the slider on the suspension rod. Here, the slider is detachably connected to the support plate 302 through the suspension rod. Thus, after moving the motor part to the maintenance opening 340 of the middle partition plate 110 and then disconnecting the connection between the suspension rod and the support plate 302, the motor 310 and the motor base 300 can be taken out from the maintenance opening 340 simultaneously.

[0115] In some embodiments, the present disclosure also provides an air conditioner including the indoor unit described in any of the above embodiments.

[0116] The above description and the drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations can vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. An indoor unit, characterized in that, include: The casing (100) is divided into a first chamber (101) and a second chamber (102) by a middle partition (110), and an electric control chamber (120) is provided on the left side of the second chamber (102); A heat exchange component is disposed in the first chamber (101), and the first chamber (101) is provided with an air outlet (108); A fan assembly is arranged in the second chamber (102), comprising a fan unit; the fan unit is used to blow the air of the second chamber (102) into the first chamber (101) through the ventilation hole (111) of the middle partition plate (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), which are respectively called the first air inlet, the second air inlet, the third air inlet, the fourth air inlet and the fifth air inlet, so as to increase the air intake of the second chamber (102) through five air intakes; wherein the second chamber (102) is connected to the electric control chamber (120) through the fourth air inlet, and the fifth air inlet is arranged on the partition wall of the second chamber (102) opposite to the fourth air inlet; 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 electric control room (120) is used to install an electric control box; A partition wall with an air inlet (107) on the left side of the second room (102) serves 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).

3. The indoor unit according to claim 2, characterized in that, The electrical control room (120) comprises: A first partition wall (121), serving as a partition wall provided with an air inlet (107) on the left side of the second chamber (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 the auxiliary air inlet (123).

4. The indoor unit according to claim 3, characterized in that, 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.

5. The indoor unit according to claim 4, characterized in that, The first partition wall (121) is provided with a plurality of air inlets (107) evenly arranged vertically; The second partition wall (122) is provided with a plurality of auxiliary air inlets (123) evenly arranged vertically.

6. The indoor unit according to any one of claims 1 to 5, characterized in that, The air inlet (107) on the upper side of the second chamber (102) is arranged at the rear of the upper panel (104) of the casing (100).

7. The indoor unit according to any one of claims 1 to 5, characterized in that, The air inlet (107) on the upper side of the second chamber (102) is configured as a strip-shaped opening.

8. The indoor unit according to any one of claims 1 to 5, characterized in that, The upper and lower sides of the second chamber (102) are provided with a plurality of evenly arranged air inlets (107).

9. The indoor unit according to any one of claims 1 to 5, characterized in that, Air inlet grilles are provided at the air inlets (107) on the upper side, lower side, left side, right side and rear side of the second chamber (102).

10. An air conditioner, characterized in that, It includes an indoor unit according to any one of claims 1 to 9.

Images