Seat hanging type air conditioner indoor unit

Abstract

The utility model provides a seat hanging type air conditioner indoor unit which comprises a unit body, an air conditioner indoor unit, an air conditioner indoor unit and an air conditioner indoor unit. The metal grating is arranged at the air inlet, and the two ends of the metal grating are connected with the air inlet panel and the rear shell respectively; the inserting part is arranged on the air inlet panel; the knob structure is mounted on the metal grating and comprises a reset plate fixedly connected to the metal grating; the guide rod is arranged in the reset plate in a penetrating manner and moves relative to the reset plate in the axial direction of the guide rod, and a limiting ring is arranged at one end of the guide rod; the spring sleeves the guide rod, and the two ends of the spring abut against the limiting ring and the reset plate correspondingly; the plug is connected to the other end of the guide rod; the knob has an opening position and a closing position; at the closing position, the plug is inserted into the plugging part; at the opening position, the elastic force of the spring enables the plug to withdraw from the plugging part. Wherein the knob penetrates through the metal grating and is rotatably connected in the plug, so that the problem of loss cannot occur when the metal grating is disassembled, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air conditioner, especially seat and hang formula air conditioner indoor unit. BACKGROUND

[0002] Seat and hang formula air conditioner indoor unit usually has seat and hoist two installation modes, provides more choices for the installation of air conditioner. Seat and hang formula air conditioner indoor unit is a common commercial air conditioner form, is widely used in large indoor space such as shopping mall, supermarket, office. When using, install seat and hang formula air conditioner indoor unit on the ceiling, save space through hidden installation, realize indoor temperature regulation.

[0003] Seat and hang formula air conditioner indoor unit includes the body and the indoor heat exchanger, heat exchanger fan arranged in the body, and the body includes at least the air inlet and the air outlet communicated with the indoor. Indoor airflow is introduced into the body by the air inlet under the action of the heat exchanger fan, and flows to the indoor by the air outlet after heat exchange by the indoor heat exchanger. The existing seat and hang formula air conditioner indoor unit is usually equipped with an air inlet grille on the air inlet side, which is used for filtering air to prevent large impurities from entering the air duct. The air inlet grille is usually made of plastic material, and is usually installed on the rear shell and the air inlet panel of the body by screws.

[0004] The air inlet grille of plastic material has poor low temperature resistance and corrosion resistance, is easy to become brittle in low temperature environment, is easy to be damaged during transportation and use in cold regions (such as Russia), and is easy to age in harsh environments such as oil stains, affecting the service life. At the same time, in order to ensure the structural strength of the air inlet grille of plastic material, the air inlet blade is usually set to be thick, which affects the air inlet volume.

[0005] In addition, the screw is installed on the rear shell and the air inlet panel of the body, which needs to use tools to disassemble and install for on-site maintenance, which is time-consuming and laborious. In order to solve the technical problem, the related technology has a technical scheme that a knob structure is used to install one end of the air inlet grille on the air inlet panel, but the structure of the disclosed knob structure is complex, and the air inlet grille needs to be aligned and penetrated through a plurality of perforations to realize locking during installation, which has high assembly precision. At the same time, the knob is easy to lose after disassembling the air inlet grille, which can cause the problem that the air inlet grille cannot be reinstalled after disassembling, affecting the user experience. UTILITY MODEL CONTENTS

[0006] The utility model aims at at least one of the technical problems in the related art to some extent. Therefore,

[0007] The utility model provides a seat and hang formula air conditioner indoor unit, which comprises:

[0008] The body is internally arranged with a first inner cavity and a second inner cavity in the width direction, and the body comprises:

[0009] a rear shell, wherein an air outlet is arranged on the rear shell and communicates with the first inner cavity;

[0010] an air inlet panel, wherein an air inlet is arranged on the air inlet panel and communicates with the second inner cavity;

[0011] an indoor heat exchanger arranged in the first inner cavity;

[0012] a heat exchanger fan arranged in the second inner cavity;

[0013] a metal grille arranged at the air inlet, wherein two ends of the metal grille are detachably connected with the air inlet panel and the rear shell respectively;

[0014] a plug-in part arranged on the air inlet panel;

[0015] a knob structure mounted on the metal grille, wherein the metal grille is detachably connected with the air inlet panel through the knob structure, and the knob structure comprises:

[0016] a reset plate fixedly connected to a side of the metal grille facing the second inner cavity;

[0017] a guide rod movably arranged in the reset plate and moving along an axial direction of the guide rod relative to the reset plate, wherein one end of the guide rod away from the air inlet panel is provided with a limiting ring for limiting the guide rod from being pulled out of the reset plate;

[0018] a spring sleeved on the guide rod, wherein two ends of the spring are respectively abutted against the limiting ring and the reset plate;

[0019] a plug connected to one end of the guide rod close to the air inlet panel;

[0020] a knob rotatably connected to the plug through the metal grille, wherein the knob has an open position and a closed position; when the knob is rotated to the closed position, the plug is inserted into the plug-in part; when the knob is rotated to the open position, the elastic force of the spring causes the plug to exit the plug-in part.

[0021] In the above technical solution, the following advantages or beneficial effects are achieved: the metal grille is adopted, which is more resistant to low temperature and corrosion than the plastic air cover in the prior art, thereby solving the problems of brittle cracking of the plastic air cover at low temperature and aging of the plastic air cover in harsh environment, and improving the reliability and service life of the product. By arranging the knob structure, the user can quickly detach and install the metal grille without tools, greatly simplifying the maintenance and cleaning operation and improving the user experience; at the same time, the knob is rotatably connected between the plug and the metal grille, so that the metal grille will not be lost when it is detached for maintenance and cleaning operation, thereby improving the user experience.

[0022] According to the embodiment of the present disclosure, the knob comprises a rotating part extending in a direction perpendicular to the metal grille, and the length and width of the rotating part in a cross section perpendicular to the extending direction of the rotating part are L and W respectively, wherein L is greater than W.

[0023] The side of the plug facing the metal grille is provided with a receiving part matched with the rotating part for receiving the rotatable rotating part.

[0024] When the rotating part is rotated to be parallel to the extending direction of the guide rod in the length direction of the rotating part, and the two ends of the length direction of the rotating part are in contact with the opposite two side walls of the receiving part, the knob is in the closed position; when the rotating part is rotated to be parallel to the extending direction of the guide rod in the width direction of the rotating part, and one end of the width direction of the rotating part is in abutment with the side wall of the receiving part close to the air inlet panel, the knob is in the open position.

[0025] The above technical solution has the following advantages or beneficial effects: the insertion and withdrawal of the plug are realized by the rotation of the knob, which is simple and intuitive and easy for users to master. When switching from the closed position to the open position, the elastic return function of the spring ensures that the plug can reliably withdraw from the plug-in part, improving the reliability of the knob structure.

[0026] According to the embodiment of the present disclosure, the knob comprises a stop part and a hand-held part connected in sequence with the rotating part, the hand-held part extends through the mounting hole in the metal grille to the outside of the machine body, and the stop part is in contact with the side of the metal grille close to the plug for limiting the knob from being pulled out of the mounting hole.

[0027] The above technical solution has the following advantages or beneficial effects: the hand-held part extends to the outside of the machine body, which is convenient for users to directly operate the knob without the need for additional tools. The stop part prevents the knob from being pulled out of the mounting hole, so that the knob is stably connected between the metal grille and the plug, improving the reliability of the connection.

[0028] According to the embodiment of the present disclosure, during the switching between the open position and the closed position of the knob, the plug is in sliding connection with the metal grille, and the plug is provided with a avoiding part corresponding to the stop part.

[0029] The above technical solution has the following advantages or beneficial effects: the plug is in sliding connection with the metal grille, so that the plug can be smoothly inserted or withdrawn from the plug-in part, improving the flexibility of the connection; by providing the avoiding part, interference between the stop part and the plug is avoided, ensuring the normal rotation of the knob and the linear motion of the plug.

[0030] According to the embodiment of the present disclosure, the plug comprises a body connected with the guide rod and a plug-in portion arranged at one end of the body away from the guide rod, the plug-in portion being used for plugging into or out of the plug-in portion.

[0031] The plug has the advantages or beneficial effects of simple structure, easy processing and assembly, and reduced production cost.

[0032] According to the embodiment of the present disclosure, the guide rod is detachably connected with the plug; and / or, the guide rod is a bolt, a head of the bolt forms the limiting ring, a sleeve is arranged on a rod portion of the bolt for sleeving the spring, a flange ring is arranged at one end of the sleeve close to the head of the bolt, the spring abuts against the head through the flange ring, and one end of the rod portion away from the head penetrates through the reset plate and is threadedly connected with the plug.

[0033] The guide rod is detachably connected with the plug, facilitating the installation of the knob.

[0034] According to the embodiment of the present disclosure, the edge of the metal grille has a flange extending into the second inner cavity, the flange being used for mounting a filter screen; a through hole corresponding to the plug-in portion is arranged on the flange, and the plug is plugged into the plug-in portion through the through hole.

[0035] The flange is arranged to limit and hold the filter screen, simplifying the mounting and dismounting process of the filter screen, increasing the strength of the metal grille, reducing deformation, and improving the durability of the product.

[0036] According to the embodiment of the present disclosure, one end of the metal grille away from the air inlet panel is provided with an elastic clamping member, the elastic clamping member is pivotally connected with the metal grille, so that the metal grille and the elastic clamping member are relatively flipped about a pivot axis.

[0037] The rear shell is provided with a clamping portion adapted to be connected with the elastic clamping member, and the elastic clamping member is connected in the clamping portion by flipping, so that the metal grille is connected with the rear shell.

[0038] The metal grille and the rear shell can be connected through the elastic buckle, the relative turning action between the metal grille and the rear shell can be realized, the metal grille and the rear shell can be quickly connected and disassembled without borrowing work, and the assembly and maintenance convenience are improved, and therefore the production efficiency is improved.

[0039] According to the embodiment of the present disclosure, the elastic buckle comprises:

[0040] A pivoting portion is connected with the metal grille.

[0041] An embedding portion is connected with the pivoting portion, one end of the embedding portion is closed for inserting the clamping portion, the other end is open and the open end is bent to form a first limiting portion, and two first side walls of the embedding portion are provided with openings.

[0042] An elastic arm is arranged at the opening, one end of the elastic arm is connected with the side wall of the opening away from the opening, the other end of the elastic arm extends through the first limiting portion to the outside of the embedding portion to form a free end, and the elastic arm has a gap between the first side wall and the first limiting portion.

[0043] A second limiting portion is arranged on the side of the two elastic arms away from each other, and the first limiting portion and the second limiting portion form a clamping structure for clamping the metal grille.

[0044] In the above technical solution, the elastic buckle provides stable connection through the cooperation of the elastic arm, the first limiting portion and the second limiting portion, and at the same time, the elastic arm provides elastic deformation for cooperation with the clamping portion to realize clamping and release, thereby greatly improving the installation and disassembly efficiency.

[0045] Another aspect of the present application also provides a seat and hoist type air conditioner indoor unit, which comprises:

[0046] A machine body is arranged in the inside itself width direction and is communicated with a first inner cavity and a second inner cavity, and the machine body comprises:

[0047] A rear shell is provided on the rear shell and is communicated with the first inner cavity.

[0048] An air inlet panel is arranged on the rear shell and is located on one side of the air outlet, and the air inlet panel is provided with an air inlet communicated with the second inner cavity.

[0049] An indoor heat exchanger is arranged in the first inner cavity.

[0050] A heat exchange fan is arranged in the second inner cavity.

[0051] A metal grille is arranged at the air inlet, and two ends of the metal grille are detachably connected with the air inlet panel and the rear shell, respectively.

[0052] A plug-in part is arranged on the air inlet panel.

[0053] A knob structure is mounted on the metal grille, and the metal grille is detachably connected with the air inlet panel through the knob structure. The knob structure comprises:

[0054] A reset plate is fixedly connected to a side of the metal grille facing the second inner cavity.

[0055] A knob plug comprises:

[0056] A plug is close to the air inlet panel relative to the reset plate.

[0057] A guide rod is connected with the plug at one end and connected with a limiting ring for limiting the reset plate from being pulled out at the other end. The guide rod moves along the axial direction of the guide rod relative to the reset plate.

[0058] A spring is sleeved on the guide rod, and two ends of the spring are respectively abutted with the limiting ring and the reset plate.

[0059] A knob is rotatably connected in the plug through the metal grille, and is used for pulling or resetting the spring to insert or withdraw the plug into or from the plug-in part.

[0060] In the above technical solution, the following advantages or beneficial effects are achieved: the metal grille is adopted, which is more resistant to low temperature and corrosion than the plastic air cover in the prior art, and solves the problems of brittle cracking of the plastic air cover at low temperature and aging in harsh environment, thereby improving the reliability and service life of the product. By arranging the knob structure, the plug is inserted and withdrawn by pulling or resetting the spring by the knob, which is simple to operate, and the user can quickly disassemble and install the metal grille without tools, greatly simplifying the maintenance and cleaning operation and improving the user experience. At the same time, the knob is rotatably connected between the plug and the metal grille, and the metal grille will not be lost during disassembly for maintenance and cleaning operation, thereby improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0061] Figure 1 is a schematic diagram of a whole machine of an embodiment of the air conditioner indoor unit of the present application;

[0062] Figure 2 is a structural schematic diagram of a machine body of an embodiment of the air conditioner indoor unit of the present application;

[0063] Figure 3 is a structural schematic diagram of a machine body omitting a deflector and an air inlet cover of an embodiment of the air conditioner indoor unit of the present application;

[0064] Figure 4 is a sectional view of a machine body in an embodiment of the air conditioner indoor unit of the present application, which is perpendicular to the length direction of the machine body;

[0065] Figure 5 is a side view of the whole machine in an embodiment of the air conditioner indoor unit of the present application;

[0066] Figure 6 is a schematic view of the whole machine in another view in an embodiment of the air conditioner indoor unit of the present application;

[0067] Figure 7 is Figure 6 is a partial sectional view in A-A direction in

[0068] Figure 8 is a schematic view of the structure of the deflector in an embodiment of the air conditioner indoor unit of the present application;

[0069] Figure 9 is a schematic view of the partial structure of the whole machine in an embodiment of the air conditioner indoor unit of the present application;

[0070] Figure 10 is a schematic view of the connection of the bracket and the driving device in an embodiment of the air conditioner indoor unit of the present application;

[0071] Figure 11 is a schematic view of the structure of the bracket in an embodiment of the air conditioner indoor unit of the present application;

[0072] Figure 12 is a partial exploded view of the motor base in an embodiment of the air conditioner indoor unit of the present application;

[0073] Figure 13 is a schematic view of the structure of the step motor in an embodiment of the air conditioner indoor unit of the present application;

[0074] Figure 14 is a schematic view of the structure of the sealing box in an embodiment of the air conditioner indoor unit of the present application;

[0075] Figure 15 is a schematic view of the connection of the bracket and the sealing box in an embodiment of the air conditioner indoor unit of the present application;

[0076] Figure 16 is an exploded view of the side plate and the bracket in an embodiment of the air conditioner indoor unit of the present application;

[0077] Figure 17 is a schematic view of the structure of the deflector, the bracket and the side plate in an embodiment of the air conditioner indoor unit of the present application;

[0078] Figure 18 is a schematic view of the connection of the deflector, the bracket and the side plate in an embodiment of the air conditioner indoor unit of the present application;

[0079] Figure 19 is another view of the whole structure of the air conditioner indoor unit according to an embodiment of the present application;

[0080] Figure 20 is a partial cross-sectional view of the whole structure of the air conditioner indoor unit according to an embodiment of the present application;

[0081] Figure 21a is a partial exploded view of the air conditioner indoor unit according to another embodiment of the present application;

[0082] Figure 21b is a partial exploded view of the air conditioner indoor unit according to another embodiment of the present application;

[0083] Figure 21c is a structure view of the metal grille according to another embodiment of the present application;

[0084] Figure 22 is a partial exploded view of the metal grille and the air inlet panel according to another embodiment of the present application;

[0085] Figure 23 is a structure view of the metal grille according to another embodiment of the present application;

[0086] Figure 24 is a partial enlarged view of A in FIG. 17; Figure 23

[0087] Figure 25 is a partial cross-sectional view of the whole structure of the air conditioner indoor unit according to another embodiment of the present application;

[0088] Figure 26 is a side view of the air conditioner indoor unit according to another embodiment of the present application, in which the knob is in the closed position;

[0089] Figure 27 is a structure view of the air conditioner indoor unit according to another embodiment of the present application, in which the knob is in the closed position;

[0090] Figure 28 is a cross-sectional view of the metal grille according to another embodiment of the present application;

[0091] Figure 29 is a partial structure view of the metal grille according to another embodiment of the present application;

[0092] Figure 30 is a cross-sectional view of the knob structure according to another embodiment of the present application, in which the extension direction is perpendicular to the rotation part;

[0093] Figure 31 ​is a sectional view 2 of the knob structure in the embodiment of the air conditioner indoor unit of the present application, taken in a direction perpendicular to the extension direction of the rotating portion;

[0094] Figure 32 is a structural schematic view of the metal grille in another embodiment of the air conditioner indoor unit of the present application, taken from another perspective;

[0095] Figure 33 is a partial exploded schematic view of the metal grille and the rear shell in another embodiment of the air conditioner indoor unit of the present application;

[0096] Figure 34 is a partial enlarged view of B in Figure 23

[0097] Figure 35 is a partial exploded schematic view of the metal grille and the elastic buckle in another embodiment of the air conditioner indoor unit of the present application;

[0098] Figure 36 is a connection schematic view of the metal grille and the elastic buckle in another embodiment of the air conditioner indoor unit of the present application;

[0099] Figure 37 is a partial enlarged sectional view of the elastic buckle when assembled in another embodiment of the air conditioner indoor unit of the present application;

[0100] Figure 38 is a partial enlarged sectional view of the elastic buckle after assembled in another embodiment of the air conditioner indoor unit of the present application;

[0101] Figure 39 is a structural schematic view of the elastic buckle in another embodiment of the air conditioner indoor unit of the present application;

[0102] Figure 40 is a structural schematic view of the elastic buckle in another embodiment of the air conditioner indoor unit of the present application, taken from another perspective.

[0103] ​In the above figures: the indoor unit 100 of the ceiling-mounted air conditioner; the machine body 1; the rear shell 11; the wire clamp 111; the clamping portion 112; the air inlet panel 12; the air inlet 121; the air inlet grille 122; the indication mark 1221; the mounting hole 1222; the folded edge 1223; the metal grille 1224; the plug-in portion 123; the through hole 124; the connecting seat 125; the shaft hole 1251; the filter screen 126; the electric control box 13; the air outlet 14; the air deflector 15; the water pan 16; the side plate 17; the folded edge hole 171; the side cover 18; the partition 191; the first inner cavity 192; the second inner cavity 193; the indoor heat exchanger 2; the heat exchanger fan 3; the volute 31; the centrifugal fan wheel 32; the bracket 4; the bent portion 41; the rotation stopping table 411; the first connecting hole 412; the vertical platform 413; the mounting portion 42; the second connecting hole 421; the connecting portion 43; the rotation stopping surface 431; the third connecting hole 432; the limiting portion 44; the limiting clamping groove 441; the clamping ring 442; the flow guide plate 5; the supporting portion 51; the sleeve 52; the second limiting surface 521; the driving device 6; the step motor 61; the output shaft 611; the first limiting surface 612; the flange 613; the first through hole 614; the motor wire 615; the motor seat 62; the rotation stopping hole 621; the through hole 622; the fixing hole 623; the sealing box 63; the box body 631; the perforated hole 6311; the box cover 632; the protrusion 633; the second through hole 634; the wire hole 635; the sealing cotton 636; the wire tie 64; the mounting pad 7; the fastener 8; the knob structure 9; the plug 91; the containing portion 911; the avoiding portion 912; the body 913; the plug-in portion 914; the reset plate 92; the guide rod 93; the bolt 931; the spring 94; the knob 95; the rotating portion 951; the stopping portion 952; the hand-held portion 953; the limiting ring 96; the sleeve 97; the flange ring 971; the elastic clamping piece 10; the pivoting portion 101; the pivoting arm 1011; the connecting shaft 1012; the embedding portion 102; the first side wall 1021; the opening 1022; the first limiting portion 1023; the elastic arm 103; the second limiting portion 1031. DETAILED DESCRIPTION

[0104] In the following, the present application will be described by way of example with reference to the embodiments. It is understood that elements, structures, and features of one embodiment can be beneficially incorporated into other embodiments without further recitation.

[0105] The term "embodiment" is mentioned in the present application means that the specific features, structures or characteristics described in connection with the embodiment can be contained in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments without conflict.

[0106] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0107] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0108] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0109] The seat and suspension type air conditioner indoor unit provided by the utility model embodiment can have various implementation forms.

[0110] Among them, Figures 1 to 20 is one illustrative embodiment of the seat and suspension type air conditioner indoor unit 100 of the utility model.

[0111] The seat and suspension type air conditioner indoor unit 100 is the indoor part of the seat and suspension type air conditioner, and is arranged in the indoor environment for heat exchange with the indoor environment. The seat and suspension type air conditioner can include an air conditioner outdoor unit, which is usually arranged outdoors to take the heat of the indoor environment to the outdoor environment.

[0112] The seat and suspension type air conditioner indoor unit 100 has two installation forms of seat type installation (hereinafter referred to as seat installation) and suspension type installation (hereinafter referred to as suspension installation). That is, the seat and suspension type air conditioner indoor unit 100 can be placed on the ground as a seat machine, or can be suspended on the ceiling as a suspended ceiling machine.

[0113] Reference Figure 1 In the embodiment, the seat and suspension type air conditioner indoor unit 100 includes a machine body 1. The machine body 1 is installed in the indoor environment, and the machine body 1 forms the overall appearance of the seat and suspension type air conditioner indoor unit 100.

[0114] The interior of the body 1 is formed with an air duct. The air duct is used to accommodate and fix various components in the ceiling-mounted air conditioner indoor unit 100, which can avoid collision between external objects and various components in the body 1, thereby improving the reliability of the ceiling-mounted air conditioner indoor unit 100 during transportation or installation.

[0115] In some embodiments of the present application, with reference to Figure 3 , the body 1 can include an air inlet 121.

[0116] The air inlet 121 is in communication with the air duct, and the air inlet 121 serves as an entrance for external air flow into the body 1, allowing indoor air to enter the air duct from the air inlet 121.

[0117] In some embodiments of the present application, with reference to Figure 2 , the body 1 can include an air outlet 14.

[0118] The air outlet 14 is in communication with the air duct, and the air outlet 14 serves as an exit for heat exchange air flow out of the body 1, allowing air flow in the air duct to flow out from the air outlet 14.

[0119] With reference to Figure 2 , in some embodiments of the present application, the body 1 can include a rear shell 11. The rear shell 11 is adapted to be placed on the ground or hung on the ceiling. The air outlet 14 is provided on the rear shell 11.

[0120] With reference to Figure 3 , the body 1 can include an air inlet panel 12. The air inlet panel 12 is provided on the rear shell 11, and the air inlet panel is located on one side of the air outlet 14, and the air inlet panel 12 and the rear shell 11 form an air duct. The air inlet 121 is provided on the air inlet panel 12.

[0121] With reference to Figure 4 , Figure 5 , in this embodiment, the air outlet 14 can be provided on the front of the body 1 when the ceiling-mounted air conditioner indoor unit 100 is installed. The air inlet 121 can be provided on the rear side of the body 1 and close to the bottom of the body 1 when the ceiling-mounted air conditioner indoor unit 100 is installed, i.e. the air inlet 121 can be located at the rear bottom of the body 1 when the ceiling-mounted air conditioner indoor unit 100 is installed. When the ceiling-mounted air conditioner indoor unit 100 is used for installation, the ceiling-mounted air conditioner indoor unit 100 takes in air from the rear bottom and discharges air to the front.

[0122] The air outlet 14 can be long strip-shaped. The air outlet 14 can be arranged along the length direction of the body 1, which improves the appearance of the ceiling-mounted air conditioner indoor unit 100.

[0123] With reference to Figure 4 , the interior of the body 1 is provided with a first inner cavity 192. The air outlet 14 is in communication with the first inner cavity 192.

[0124] The second inner cavity 193 is arranged inside the body 1. The air inlet 121 is arranged in communication with the second inner cavity 193.

[0125] The first inner cavity 192 and the second inner cavity 193 are arranged in the first direction inside the body 1. The first inner cavity 192 and the second inner cavity 193 are in communication to form an air duct. The first direction is the width direction of the ceiling-mounted air conditioner indoor unit 100.

[0126] The body 1 can include two side plates 17 arranged at a relative interval along the length direction of the body 1. The two side plates 17 form two ends of the air duct in the length direction of the body 1.

[0127] The two side plates 17 are located on both sides of the air inlet 121. That is, the first inner cavity 192 and the second inner cavity 193 are formed between the two side plates 17.

[0128] The rear shell 11 can include two side covers 18 arranged at a relative interval in the length direction of the body 1, forming two ends of the length direction of the body 1. The two side covers 18 are respectively connected to the two side plates 17, and play a role of appearance decoration.

[0129] It should be noted that the directions described in the present application are based on the direction when the user faces the ceiling-mounted air conditioner indoor unit during hoisting, wherein the front side is the side facing the user during hoisting of the ceiling-mounted air conditioner indoor unit, and the side opposite to the front side is the rear side, and the left side and the right side are distinguished based on the direction when the user faces the ceiling-mounted air conditioner indoor unit during hoisting.

[0130] During hoisting of the air conditioner indoor unit 100, the ceiling-mounted air conditioner indoor unit 100 has a top end and a bottom end, which are two ends in the height direction of the body 1, the left end and the right end of the body 1 are two ends in the length direction of the body 1, and the front end and the rear end of the body 1 are two ends in the width direction of the body 1.

[0131] In some embodiments of the present application, the ceiling-mounted air conditioner indoor unit 100 can include a partition 191. The partition 191 extends in the length direction of the body 1 in the body 1, so as to define the first inner cavity 192 and the second inner cavity 193 arranged in the first direction in the body 1.

[0132] In some embodiments, continuing to refer to Figure 5 The ceiling-mounted air conditioner indoor unit 100 can include an indoor heat exchanger 2. The indoor heat exchanger 2 extends in the length direction of the body 1, and the indoor heat exchanger 2 is arranged in the first inner cavity 192 and used for heat exchange with airflow in the body 1.

[0133] The end plates are arranged at two ends of the indoor heat exchanger 2 in the length direction, which can avoid stress concentration of the indoor heat exchanger 2 and improve the structural stability of the indoor heat exchanger 2.

[0134] In some embodiments of the present application, the ceiling-suspended air conditioner indoor unit 100 can include a heat exchange fan 3.

[0135] The heat exchange fan 3 is arranged in the second inner cavity 193 and is used to drive indoor air outside the machine body 1 to enter the air duct in the machine body 1 through the air inlet. The heat exchange fan 3 drives the air in the air duct to flow in the direction from the air inlet 121 to the air outlet 14.

[0136] When the ceiling-suspended air conditioner indoor unit 100 is installed, the heat exchange fan 3 is arranged below the indoor heat exchanger 2. In the air flow direction in the machine body 1, the heat exchange fan 3 is located upstream of the indoor heat exchanger 2.

[0137] When the ceiling-suspended air conditioner indoor unit 100 is running, under the driving of the heat exchange fan 3, indoor air enters the air duct through the air inlet 121. The indoor air in the air duct flows through the indoor heat exchanger 2 for heat exchange. The heat-exchanged air flows out of the air outlet 14 to the indoor environment, so as to make the air conditioner refrigerate and heat, and play a role in adjusting the indoor temperature to achieve the comfortable temperature of the user.

[0138] The heat exchange fan 3 can be a centrifugal fan. The heat exchange fan 3 can be provided with one, two or more.

[0139] The heat exchange fan 3 can include a volute 31, and the inside of the volute 31 forms a centrifugal air duct. The volute 31 can be connected to the partition 191.

[0140] The volute 31 can include an air inlet. The air inlet is in communication with the centrifugal air duct and is used to supply air to the centrifugal air duct.

[0141] The volute 31 can include an air outlet. The air outlet is in communication between the centrifugal air duct and the first inner cavity 192, and is used to supply air from the centrifugal air duct to the first inner cavity 192.

[0142] In some embodiments of the present application, the centrifugal fan 3 can include a centrifugal fan wheel 32.

[0143] The centrifugal fan wheel 32 is arranged in the centrifugal air duct. The centrifugal fan wheel 32 rotates to drive air to enter the centrifugal air duct inside the volute 31 from the air inlet and to be discharged through the air outlet. The centrifugal fan wheel has the characteristics of large air volume, large air pressure and short ventilation time, which is beneficial to improve the air volume of the ceiling-suspended air conditioner indoor unit 100.

[0144] In some embodiments of the present application, the ceiling-suspended air conditioner indoor unit 100 can include a water pan 16.

[0145] Reference Figure 4 The water pan 16 is arranged in the first inner cavity 192 and is located below the indoor heat exchanger 2 to collect the condensed water dripping from the indoor heat exchanger 2 in the cooling mode.

[0146] When the air conditioner indoor unit 100 is hoisted, the projection of the indoor heat exchanger 2 in the vertical direction is located in the water pan 16, so that the water pan 16 can collect most of the condensed water generated by the indoor heat exchanger 2, avoid damage to the electrical elements of the air conditioner indoor unit 100, and also avoid the condensed water from seeping out of the machine body 1 and dripping, affecting the user experience.

[0147] In some embodiments of the present application, the centrifugal fan 3 can include a driving motor. The driving motor is connected to the centrifugal fan wheel 32 to drive the centrifugal fan wheel 32 to rotate.

[0148] The air conditioner outdoor unit can include an outdoor unit body. The outdoor unit body can be provided with an outdoor heat exchange air duct.

[0149] The outdoor unit body can include an outdoor air inlet. The outdoor air inlet can be in communication with the outdoor heat exchange air duct. The outdoor air inlet can be used to introduce outdoor air into the outdoor heat exchange air duct.

[0150] The outdoor unit body can include an outdoor air outlet. The outdoor air outlet can be in communication with the outdoor heat exchange air duct. The outdoor air outlet can be used to introduce outdoor air into the outdoor heat exchange air duct.

[0151] The air conditioner outdoor unit can include an outdoor heat exchanger. The outdoor heat exchanger can be arranged in the outdoor heat exchange air duct.

[0152] The air conditioner outdoor unit can include an outdoor fan. The outdoor fan can be arranged in the outdoor heat exchange air duct.

[0153] The rotation of the outdoor fan causes the outdoor air to enter the heat exchange air duct from the outdoor air inlet and exchange heat with the outdoor heat exchanger. The outdoor air after heat exchange flows out of the outdoor heat exchange air duct from the outdoor air outlet.

[0154] The air conditioner can include a compressor. The compressor is arranged in the outdoor heat exchange air duct.

[0155] The air conditioner can include a throttling device. The throttling device is used for throttling. The throttling device can be provided in the air conditioner indoor unit or the air conditioner outdoor unit.

[0156] The air conditioner performs a refrigeration cycle of the air conditioner by using the compressor, the condenser, the throttling device and the evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been adjusted and heat exchanged.

[0157] The compressor compresses the refrigerant gas in a low-temperature and low-pressure state to discharge refrigerant gas in a high-temperature and high-pressure state. The discharged refrigerant gas flows into the condenser.

[0158] The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0159] The throttling device expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into low-pressure liquid-phase refrigerant.

[0160] The evaporator evaporates the refrigerant expanded in the throttling device and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor.

[0161] The evaporator can achieve a refrigeration effect by exchanging heat with the material to be cooled using the latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature of the indoor space.

[0162] In both the indoor heat exchanger and the outdoor heat exchanger, one of which is a condenser and the other of which is an evaporator, when the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

[0163] Reference Figure 5 In some embodiments, the ceiling-suspended air conditioner indoor unit 100 can include a single air deflector 15.

[0164] The air deflector 15 is rotatably connected to the body 1 and is disposed at the air outlet 14 to guide the heat-exchanged air flow at the air outlet 14.

[0165] In order to achieve close-range air supply, the rotation angle of the air deflector 15 is adjusted to be small. When the rotation angle of the air deflector 15 is small, the air outlet 14 becomes small, which in turn causes the air volume to become small, affecting the use effect of refrigeration or heating. Moreover, in the related art, even if the rotation angle of the air deflector 15 is adjusted to be small, the air of the air conditioner indoor unit cannot blow into a small range of distance vertically below the air outlet 14 and to the side of the air outlet 14, resulting in poor air supply effect in these areas. In a commercial environment, such as in a shopping mall, if a customer is located directly below the ceiling-suspended air conditioner indoor unit, the customer can not feel the air, thereby affecting the user experience and comfort.

[0166] To solve the above technical problems, in some embodiments of the present application, with reference to Figure 5 , Figure 6A rotatable guide plate 5 is arranged outside the air outlet 14 to guide the airflow blown by the air outlet 14 for the second time, change the airflow flow field distribution, and not change the air volume of the air outlet 14. By adjusting the position of the guide plate 5, the large air volume close-range air supply can be realized, the air supply vertically below the air outlet 14 is met, and the user's perceived comfort is increased.

[0167] With reference to Figure 5 The ceiling-suspended air conditioner indoor unit can include two supports 4 arranged at intervals along the length direction of the air outlet 14. One end of the support 4 is detachably connected in the machine body 1, and the other end of the support 4 extends to the outside of the machine body 1 through the air outlet 14.

[0168] The ceiling-suspended air conditioner indoor unit can include two driving devices 6. With reference to Figure 7 The two driving devices 6 are correspondingly installed on the two supports 4. The driving device 6 has an output shaft 611 extending along the length direction of the air outlet 14.

[0169] The guide plate 5 extends along the length direction of the air outlet 14, and the side of the guide plate 5 facing the machine body 1 is connected with the two output shafts 611. The two driving devices 6 drive the guide plate 5 to rotate around the center line of the output shaft 611. The rotating guide plate 5 guides the airflow blown by the air outlet 14 to change the airflow flow field distribution.

[0170] In this embodiment, the twice guidance of the airflow at the air outlet 14 is realized by arranging the rotatable air guide plate 15 at the air outlet 14 and the guide plate 5 driven by the driving device 6. The air guide plate 15 can preliminarily guide the airflow, and the guide plate 5 changes the airflow flow field distribution by rotating, so that the air volume can be more uniformly distributed to a wider area. By adjusting the position of the guide plate 5, the air supply distance can be changed to realize the large air volume close-range air supply and the air supply far away from the air outlet 14, solve the problem that there is no air in the small range below the air outlet 14 and on the air outlet 14 side in the prior art, improve the comfort of the user below the ceiling-suspended air conditioner, and meet the higher requirements of commercial places such as shopping malls on the air supply range of the air conditioner.

[0171] It should be noted that in this application, the distance between the guide plate 5 and the machine body 1, the size and shape of the guide plate 5, and the position of the center line of the output shaft 611 of the guide plate 5 can be adjusted according to actual conditions.

[0172] With reference to Figure 8The support part 51 is provided with a sleeve 52 at the end away from the deflector 5, and the sleeve 52 is sleeved on the outside of the output shaft 611. The outer wall of the output shaft 611 is provided with a first limiting surface 612, and the inner wall of the sleeve 52 is provided with a second limiting surface 521 matched with the first limiting surface 612. The second limiting surface 521 cooperates with the first limiting surface 612 to avoid relative rotation between the sleeve 52 and the output shaft 611, and to ensure synchronous rotation of the deflector 5 connected with the sleeve 52 and the output shaft 611.

[0173] In the embodiment, the synchronous rotation of the output shaft 611 and the deflector 5 can be realized only by the cooperation of the first and second limiting surfaces 521, without the need for complex mechanical structures or additional power devices, thereby reducing manufacturing cost and maintenance difficulty.

[0174] The output shafts 611 of the two driving devices 6 are directed towards each other or away from each other, so that the deflector 5 can be bent outwardly or inwardly from the middle position to realize quick disassembly of the deflector 5. This arrangement significantly simplifies the disassembly process, realizes quick disassembly when the deflector 5 needs to be disassembled, and reduces disassembly time and workload of the deflector 5.

[0175] Reference Figures 9 to 13 In some embodiments of the present application, the end of the support 4 away from the body 1 is bent to form a bent part 41, and the bent part 41 extends along the length direction of the air outlet 14. The bent part 41 provides a reliable mounting basis for the driving device 6, so that the driving device 6 can be better installed outside the body 1.

[0176] Reference Figure 10 The driving device 6 can include a motor seat 62, and the motor seat 62 is installed on the bent part 41.

[0177] The driving device 6 can include a stepping motor 61, and the stepping motor 61 is installed on the motor seat 62. The motor seat 62 is installed on the bent part 41, further enhancing the stability of the structure, providing a reliable mounting basis for the stepping motor 61, and ensuring that the driving device 6 can accurately and stably drive the deflector 5 to rotate, thereby realizing effective adjustment of the airflow flow field.

[0178] In some embodiments of the present application, one end of the bent part 41 is provided with a rotation stopping table 411, and the motor seat 62 is provided with a rotation stopping hole 621 matched with the rotation stopping table 411, and the rotation stopping table 411 is fitted into the rotation stopping hole 621, which can effectively prevent relative rotation between the motor seat 62 and the support 4, and ensure that the two are always fixedly connected during operation.

[0179] Reference Figure 11The first connecting hole 412 is arranged on the rotation-stopping table 411 for connecting the fastener 8, and the through hole 622 is vertically arranged on the motor base 62 along the central axis of the rotation-stopping hole 621. When the rotation-stopping table 411 is fitted into the rotation-stopping hole 621, the fastener 8 is fixedly connected into the first connecting hole 412 through the through hole 622.

[0180] The fastener 8 is fixedly connected into the first connecting hole 412 through the through hole 622, which further enhances the connection strength between the bending part 41 and the motor base 62, and makes the whole structure more stable.

[0181] In the embodiment, the rotation-stopping table 411 is fixedly connected with the rotation-stopping hole 621 through the fastener 8, so that the motor base 62 can be firmly installed on the bending part 41 of the bracket 4, ensuring the stability and accuracy of the rotation of the guide plate 5 and improving the reliability of air supply adjustment of the air conditioner.

[0182] Further, the vertical platform 413 is arranged between the rotation-stopping table 411 and the bending part 41, which is used to limit the movement of the motor base 62 in the horizontal direction, and can provide accurate positioning for the installation of the motor base 62, so that the motor base 62 can be quickly positioned to the correct position, reducing the adjustment time in the installation process and improving the installation efficiency.

[0183] Continuing to refer to Figure 11 In the embodiment, the rotation-stopping table 411 is formed by arranging the two planes on the top and bottom of the bending part 41, which has a simple structure and does not need to separately arrange the rotation-stopping table 411.

[0184] Through the cooperation of the two planes and the vertical platform 413, the displacement of the motor base 62 in the installation direction and the circumferential direction can be limited, accurate positioning and limiting functions are provided for the motor base 62, and it is ensured that the motor base 62 can be accurately aligned with the through hole 622 and the first connecting hole 412 in the installation process and fixed at the specified position.

[0185] Referring to Figure 11 , Figure 13 The stepping motor 61 is installed at the end of the motor base 62 away from the bracket 4. The two sides of the stepping motor 61 have flanges 613, and the flanges 613 have first through holes 614.

[0186] The motor base 62 is provided with two fixing holes 623 corresponding to the first through holes 614, and the fastener 8 can be fixedly connected into the fixing hole 623 through the first through hole 614, so that the stepping motor 61 can be firmly installed on the motor base 62.

[0187] In some embodiments of the present application, referring to Figure 14 , Figure 15The driving device 6 can include a sealing box 63, which covers the outside of the motor base 62 and the stepping motor 61, and is used to protect the stepping motor 61.

[0188] In the embodiment, the motor base 62 and the stepping motor 61 are covered by the sealing box 63, which plays a sealing and protection role, prevents dust and sundries from entering the inside of the driving device 6, affects the normal operation of the stepping motor 61, prolongs the service life of the driving device 6, and improves the appearance neatness of the entire air conditioner indoor unit.

[0189] The bracket 4 is provided with a mounting portion 42 spaced from the bent portion 41, and the sealing box 63 is fixedly installed on the mounting portion 42.

[0190] Continuing to refer to Figure 14 In the embodiment, the sealing box 63 is provided with a protrusion 633, the protrusion 633 is provided with a second through hole 634 for the fastener 8 to penetrate, the mounting portion 42 is provided with a second connecting hole 421 corresponding to the second through hole 634, and the fastener 8 penetrates the second through hole 634 and is connected in the second connecting hole 421, so that the sealing box 63 is fixedly installed on the mounting portion 42.

[0191] In some embodiments, the sealing box 63 can include a box body 631, which is hollow inside and has an open mouth. The bottom plate of the box body 631 is provided with a through hole 6311 for the bent portion 41 to penetrate. The protrusion 633 is arranged on the box body 631.

[0192] The sealing box 63 can include a box cover 632, which covers the open mouth of the box body 631 to close the internal space of the box body.

[0193] When the driving device 6 is installed, first, the through hole 6311 on the box body 631 penetrates the bracket 4 and leaks out of the bent portion 41, then the rotation stopping hole 621 of the motor base 62 penetrates the rotation stopping table 411, which is limited by the vertical platform 413 on the rear side, and then the motor base 62 is fixed on the bent portion 41 by the fastener 8. After the installation of the motor base 62 is completed, the stepping motor 61 is further installed on the motor base 62 by the fastener 8, and then the box cover 632 is buckled on the box body 631. At this time, the position of the sealing box 63 can be adjusted, the second through hole 634 on the protrusion 633 of the sealing box 63 is aligned with the second connecting hole 421 on the mounting portion 42, and the fastener 8 is used for fixation, so that the installation of the driving device 6 can be realized.

[0194] It can be understood that the output shaft 611 of the stepping motor 61 can penetrate the box cover and extend out of the outside of the sealing box 63 to be connected with the guide plate 5.

[0195] In some embodiments of the present application, referring to Figure 15The end of the bracket 4 away from the flow guide plate 5 is provided with a connecting portion 43, and the connecting portion 43 has a rotation-stopping surface 431.

[0196] Referring to Figure 16 The side plate 17 is provided with a flange hole 171 matched with the connecting portion 43, and the connecting portion 43 is matched in the flange hole 171 and fixedly connected by the fastener 8.

[0197] In this embodiment, referring to Figure 17 Through the cooperation of the flange hole 171 and the rotation-stopping surface 431 and the fixed connection of the fastener 8, the detachable fixed connection of the bracket 4 and the body 1 is realized, and the installation and disassembly of the bracket 4 are facilitated. This setting greatly improves the flexibility and adaptability of the product, allows the user to choose whether to use the large flow guide plate 5 according to the actual needs, meets the needs of different users in different scenarios, and improves the user experience.

[0198] Continuing to refer to Figure 16 In order to realize the close connection of the bracket 4 and the side plate 17, a third connecting hole 432 for connecting the fastener 8 is arranged at the end of the connecting portion 43 away from the air duct.

[0199] Referring to Figure 18 When the fastener 8 is installed, a mounting pad 7 is installed on the top surface of the flange hole 171, and the fastener 8 is fixedly connected in the third connecting hole 432 by penetrating the mounting pad 7.

[0200] By arranging the mounting pad 7, a flat and stable support surface can be provided when the bracket 4 is fixed, the contact area with the top surface of the flange is increased, and it is ensured that the fastener 8 can be uniformly stressed, thereby improving the reliability and stability of the connection.

[0201] It can be understood that the outer diameter of the mounting pad 7 should be greater than the outer diameter of the flange hole 171, so as to ensure that the flange hole 171 can be completely covered and a sufficient support area is provided.

[0202] Of course, in some other embodiments, the fastener 8 can be connected to the connecting portion 43 by penetrating the flange hole 171.

[0203] The outer peripheral wall of the bracket 4 is provided with a limiting portion 44 between the bracket 4 and the connecting portion 43, for limiting the distance of the connecting portion 43 extending into the flange hole 171.

[0204] In this embodiment, the limiting portion 44 can limit the distance of the connecting portion 43 extending into the flange hole 171, ensure the accuracy of the position of the bracket 4 during installation on the side plate 17, improve the assembly effect, and ensure the close connection between the bracket 4 and the side plate 17, thereby improving the assembly quality and reliability of the entire air conditioner indoor unit.

[0205] Referring to Figure 16 ,Figure 18 The limiting portion 44 can include a limiting clamping groove 441 recessed on the outer peripheral wall of the bracket 4.

[0206] The limiting portion 44 can include a clamping ring 442 clamped in the limiting clamping groove 441. The outer diameter of the clamping ring 442 is greater than the outer diameter of the flange hole 171, which can provide additional support to prevent the bracket 4 from being excessively inserted into the flange hole 171.

[0207] With reference to Figure 17 When the bracket 4 is installed, the connecting portion 43 with the rotation-stopping surface 431 is inserted into the flange hole 171 until the clamping ring 442 contacts the side plate 17 to ensure the accuracy of the position of the bracket 4. At this time, the connecting portion 43 cooperates with the flange hole 171 to avoid relative rotation therebetween. The mounting pad 7 is added to the top surface of the flange hole 171, and the fastener 8 is used to penetrate the mounting pad 7 and is fixedly connected in the third connecting hole 432 to achieve the installation of the bracket 4 on the side plate 17.

[0208] The machine body 1 is internally provided with an electric control box 13. The electric control box 13 is arranged in the space formed between the side cover 18 and the side plate 17 to avoid being directly placed in the air duct, thereby reducing the damage of the electric control box 13 caused by dust, moisture and other pollutants in the air duct.

[0209] The electric control box 13 has an electric control board inside, which is electrically connected to the electric elements inside the machine body 1 through connecting wires.

[0210] It can be understood that the electric control board is configured to be electrically connected to the compressor, the expansion valve and the heat exchange fan through the connecting wires to at least control the compressor, the expansion valve and the heat exchange fan, thereby controlling the operation of the entire seat and hoist type air conditioner indoor unit and realizing the predetermined functions of the air conditioner.

[0211] In some embodiments of the present application, the machine body 1 is provided with a plurality of wire clamps 111 at the top end when the seat and hoist type air conditioner indoor unit 100 is hoisted, and the plurality of wire clamps 111 are arranged at intervals along a predetermined path.

[0212] With reference to Figure 19 The stepping motor 61 has motor wires 615 which are sequentially extended to the machine body 1 through the corresponding mounting portions 42 and the brackets 4 and are connected to the electric control board inside the machine body 1 through the wire clamps 111. The motor wires 615 are fixed on the brackets 4 and the mounting portions 42 by wire binding.

[0213] Further, with reference to Figure 15The box body 631 of the sealing box 63 is provided with a wire passing hole 635 for the motor wire 615 to pass through. The motor wire 615 from the sealing box 63 can be locked by a wire tie along the mounting portion 42 and the bracket 4, then go upwards to the top of the machine body 1, be clamped and positioned by a plurality of wire clamps 111, and enter the electric appliance box through the installation gap of the hoisting plate to be electrically connected with the electric control board.

[0214] In the embodiment, the wire clamps 111 cooperate with the wire tie to fix the motor wire 615 and layout the wire, so that the wiring of the motor wire 615 is more orderly, and the motor wire 615 is prevented from loosening or shifting due to vibration or external force during operation, thereby realizing stable power supply and signal transmission of the stepping motor 61 and ensuring that the driving device 6 can accurately operate according to the instruction of the electric control board.

[0215] In some embodiments, the wire passing hole 635 is sealed by sealing cotton 636 to ensure that the sealing box 63 effectively protects the stepping motor 61.

[0216] When the user does not want to use the deflector 5, the deflector 5 can also be disassembled. When disassembling, the large deflector 5 can be first bent outwardly from the middle position and pulled out from the output shaft 611 of the driving device 6 on both sides; then the left and right side covers are disassembled, the fasteners 8 of the bracket 4 on the two side plates 17 are disassembled, the bracket 4 and the driving device 6 are taken out together, and finally the motor terminal corresponding to the motor wire 615 in the electric appliance box is pulled out, thereby completing the disassembly of the deflector 5.

[0217] In some embodiments of the present application, with reference to Figure 20 In the initial position, the vertical distance between the top end and the bottom end of the deflector 5 is H1, and the vertical distance between the top end of the deflector 5 and the rotation axis is H2, and H1 / 4≤H2≤H1 / 3.

[0218] In the embodiment, by reasonably setting H2, the rotation center of the deflector 5 in the initial position is located at the upper part of the deflector 5, so that the air supply range of the air conditioner can be increased, and the air of the air outlet 14 can cover a wider area.

[0219] It should be noted that in the embodiment, the initial position of the deflector 5 is the position of the deflector 5 when the ceiling-hung type air conditioner indoor unit 100 is in the shutdown state, and the air deflector 15 closes the air outlet 14 in the shutdown state. The side surface of the deflector 5 facing the air outlet 14 is a first side surface L1, the side surface of the air deflector 15 facing the deflector 5 is a second side surface L2, and when the first side surface L1 is parallel to the second side surface L2, the deflector 5 is in the initial position.

[0220] In some embodiments, H1 / 4≤H2. H2≤H1 / 3.

[0221] The distance H2 cannot be too large, which means that the center line of the output shaft 611 in the initial position is too close to the bottom end of the guide plate 5, and the guide plate 5 is arranged relatively high with respect to the air outlet 14, which affects the air supply range, especially in the vertical lower and side areas of the air conditioner indoor unit. In order to increase the air supply range and achieve the blowing of heat exchange air flow or landing, the ratio of H1 to H2 is set to be not less than a first parameter value. The first parameter value can be any value between 3 and 3.3. In the specific design, a suitable specific parameter is selected. For example, the first parameter value can be 3.

[0222] The distance H2 cannot be too small, which means that the center line of the output shaft 611 in the initial position is too close to the top end of the guide plate 5, which may cause the moment of the guide plate 5 to be too large when rotating, increasing the burden of the driving device 6, thereby affecting the energy efficiency and service life of the air conditioner. In order to reduce the burden of the driving device 6, the ratio of H1 to H2 is set to be not greater than a second parameter value. The second parameter value can be any value between 3.8 and 4. In the specific design, a suitable specific parameter is selected. For example, the second parameter value can be 4.

[0223] In some embodiments of the present application, with reference to Figure 19 , the length dimension of the air outlet 14 is K1, and the length dimension of the guide plate 5 is K2, wherein K1-(50mm)≤K2≤K1+(50mm).

[0224] In the present embodiment, the size of the guide plate 5 is reasonably set so that the length of the guide plate 5 is close to the length of the air outlet 14, which can better cover the area of the air outlet 14, so that the air flow is uniformly distributed under the action of the guide plate 5, avoiding local air flow being too strong or too weak, thereby improving the uniformity of indoor temperature.

[0225] It should be noted that the length dimension of the air outlet 14 is the distance between the two ends in the length direction of the air outlet 14, and the length dimension of the guide plate 5 is the distance between the two ends in the length direction of the guide plate 5. The length direction of the air outlet 14 and the length direction of the guide plate 5 are the length direction of the machine body 1.

[0226] In some embodiments, K2≥K1-(50mm). K2≤K1+(50mm).

[0227] The length of the guide plate 5 cannot be too long, and the guide plate 5 that is too long may exceed the effective range of the air outlet 14, resulting in more vortex and resistance of the air flow at the end of the guide plate 5, thereby reducing the uniformity of the air flow and the efficiency of the air conditioner. In addition, the guide plate 5 that is too long may exceed the aesthetic design range of the machine body 1, affecting the overall appearance of the air conditioner and user acceptance.

[0228] For aesthetic purposes and to reduce eddy currents and drag, the length dimension K2 is set to be no greater than the value of the third parameter. The third parameter value can be any value between (K1 + (40mm)) and (K1 + (50mm)). In specific designs, a suitable parameter should be chosen. For example, the third parameter value could be K1 + (50mm).

[0229] The length of the deflector 5 should not be too short. If the deflector 5 is too short, it will not be able to completely cover the air outlet 14, resulting in some airflow not being effectively guided, and the phenomenon of local airflow being too strong or too weak, which will affect the uniformity of indoor temperature.

[0230] To fully guide the airflow after heat exchange and improve cooling and heating efficiency, the length dimension K2 is set to be no less than the third parameter value. The fourth parameter value can be any value between (K1-(50mm)) and (K1-(40mm)). A suitable specific parameter should be selected during the design process. For example, the fourth parameter value could be K1-(50mm).

[0231] The air guide plate 15 is rotatably connected to the body 1 via a rotating shaft. (Continue to refer to...) Figure 20 The bracket 4 is located below the rotating shaft of the air guide plate 15. The vertical distance between the rotating shaft of the air guide plate 15 and the bracket 4 is H4, where H4 > 10mm.

[0232] H4 should not be too small, as this may interfere with the installation of bracket 4. For ease of installation, H4 is set to a value greater than the fifth parameter. The fifth parameter value can be any value between 10mm and 15mm. In specific design considerations, a suitable parameter should be chosen. For example, the fifth parameter value could be 10mm.

[0233] In some embodiments of this application, the indoor unit of a ceiling-mounted air conditioner may include a bracket 4, which is detachably connected to the unit body 1.

[0234] The indoor unit of the ceiling-mounted air conditioner may include at least two drive units 6, which are mounted on the bracket 4. The at least two drive units 6 are located outside the unit body 1 and are spaced apart along the length of the air outlet 14.

[0235] The indoor unit of a ceiling-mounted air conditioner may include a guide vane 5, which extends along the length of the air outlet 14. The side of the guide vane 5 facing the unit body 1 is connected to the output shaft 611 of at least two drive devices 6. The at least two drive devices 6 drive the guide vane 5 to rotate around the centerline of the output shaft 611. The rotating guide vane 5 guides the airflow blown out of the air outlet 14 to change the airflow field distribution. The centerline of the output shaft 611 extends along the length of the air outlet 14.

[0236] In this embodiment, by arranging the flow guide plate 5 outside the air outlet 14, cooperating with the air deflector 15 at the air outlet 14, the guidance of the air flow blown out of the air outlet 14 and the change of the flow field distribution are realized. By adjusting the position of the flow guide plate 5, the air supply demand of different areas can be better met, especially under the vertical of the ceiling-mounted air conditioner indoor unit, it can ensure that there is enough wind power to provide, improve the comfort of users, meet the higher requirements of shopping malls and other commercial places for air supply range of air conditioner, and improve the air supply performance and user experience of the air conditioner indoor unit.

[0237] It can be understood that the entire driving device 6 is arranged in front of the machine body 1, and the flow guide plate 5 is arranged in front of the support 4. When the user stands in front of the lower part of the machine body 1 and watches, the flow guide plate 5 blocks the driving device 6 and the support part 51, and the driving device 6 has little effect on the appearance of the machine body 1, avoiding affecting the appearance aesthetics.

[0238] In this embodiment, by arranging the rotatable flow guide plate 5, the air supply range can be expanded, especially covering the small range area below and to the left of the air outlet 14, improving the comfort experience of users in commercial environment. By adjusting the position of the flow guide plate 5, large air volume close-range air supply can be realized, meeting the demand of air supply vertically below the air outlet 14.

[0239] In some embodiments of the present application, with reference to Figure 6 , the ceiling-mounted air conditioner indoor unit 100 can include an air inlet grille 122.

[0240] The air inlet grille 122 is arranged at the air inlet 121 and is used for filtering air to prevent large impurities from entering the air duct.

[0241] Among them, the air inlet grille 122 can be arranged in multiple at the air inlet 121 along the length direction of the machine body 1. Multiple air inlet grilles 122 can disperse the force and reduce the load of a single grille, improving the strength and reliability of the overall structure. At the same time, multiple air inlet grilles 122 can be cleaned and maintained respectively, and the operation is more flexible.

[0242] In some embodiments of the present application, the inner side of the air inlet grille 122 is embedded with a filter screen 126, which can effectively intercept dust, particulate matter, hair and other impurities in the air, preventing these pollutants from entering the inside of the machine body, thereby reducing the pollution to the indoor heat exchanger and heat exchanger fan.

[0243] By setting the filter screen 126 to filter air, reducing the circulation of dust in indoor air, improving indoor air quality, and providing a healthier and more comfortable environment for users.

[0244] In the related art, the air inlet grille 122 is usually made of plastic material. The air inlet grille 122 made of plastic material is prone to be brittle under low temperature conditions, and is prone to cracking when transported for a long time or falls. The air inlet grille 122 made of plastic material is not resistant to corrosion, and will gradually corrode and age under relatively harsh environmental conditions, such as an oil pollution environment. Meanwhile, considering the strength of the air inlet grille 122 made of plastic material, a single plastic rib is thickened, and too many ribs will affect the air inlet amount of the ceiling-mounted air conditioner indoor unit.

[0245] To solve the above technical problems, in some embodiments of the present application, the air inlet grille 122 made of plastic material is replaced by an air inlet grille 122 made of metal material.

[0246] The air inlet grille 122 made of metal material is thinner than the air inlet grille 122 made of plastic material, reduces the air inlet resistance, increases the air inlet area, and is beneficial to increase the air volume. Among them, the air inlet grille 122 made of metal material increases the air inlet area by about 2%~5% compared with the plastic air inlet grille 122 of the prior art.

[0247] The air inlet grille 122 made of metal material is more resistant to low temperature than the plastic air inlet grille 122 in the prior art, and has a good protective effect on the protection damage of foreign cold season transportation, solves the problem that the plastic air inlet grille 122 is prone to brittle cracking under low temperature, and improves the reliability and service life of the product.

[0248] Further, the outer surface of the air inlet grille 122 made of metal material (hereinafter referred to as metal grille 1224) can be sprayed, which greatly enhances the corrosion resistance and solves the problem that the existing plastic air inlet grille 122 is prone to aging under harsh environments.

[0249] The metal grille 1224 is detachably connected with the air inlet panel 12 and the rear shell 11 at both ends in the width direction of the machine body 1. The detachable connection allows users or maintenance personnel to easily detach the metal grille 1224, which facilitates the user to clean or replace the grille itself and the filter screen 126 inside. At the same time, after detaching the metal grille 1224, the heat exchange fan inside the air conditioner indoor unit can be cleaned more conveniently, keeping the equipment in good operating condition.

[0250] Reference Figure 21a 、 21b , 21c, the ceiling-mounted air conditioner indoor unit 100 can include a knob structure 9 installed on the metal grille 1224. Among them, the metal grille 1224 is detachably connected with the air inlet panel 12 through the knob structure 9.

[0251] In the related art, the two ends of the air inlet grille 122 are installed by screws. For on-site maintenance, tools are needed to disassemble and install, which is time-consuming and laborious. In order to solve this technical problem, there is a technical solution that uses a knob structure 9 to install one end of the air inlet grille 122 on the air inlet panel 12. However, the disclosed knob structure 9 has a complex structure, and when installing the air inlet grille 122, it needs to be aligned and penetrated through multiple perforations to achieve locking, which requires high assembly precision. At the same time, the knob 95 is easy to lose after the air inlet grille 122 is disassembled, which leads to the problem that the air inlet grille 122 cannot be reinstalled, affecting the user experience.

[0252] In the present application, the knob structure 9 is improved to effectively solve the above technical problems.

[0253] Specifically, the ceiling-mounted air conditioner indoor unit 100 can include a plug-in part 123, which is provided on the air inlet panel 12. Among them, referring to Figure 22 The plug-in part 123 can be a plug-in slot.

[0254] The knob structure 9 can include a plug 91. The plug 91 is adapted to the plug-in part 123 and is used to plug into or exit the plug-in part 123.

[0255] Referring to Figure 24 The knob structure 9 can include a reset plate 92, which is fixedly connected to the side of the metal grille 1224 facing the second inner cavity. Among them, the reset plate 92 is fixed on the metal grille 1224, which provides support and guidance for other components of the knob structure 9, ensuring the stability and reliability of the knob structure 9.

[0256] The knob structure 9 can include a guide rod 93. The guide rod 93 is provided in the reset plate 92, and the guide rod 93 can move along the axial direction of itself relative to the reset plate 92. Continue to refer to Figure 24 The plug 91 is connected to one end of the guide rod 93 close to the air inlet panel 12, and the other end of the guide rod 93 away from the air inlet panel 12 is provided with a limit ring 96 to limit the guide rod 93 from coming out of the reset plate 92.

[0257] The guide rod 93 can move axially in the reset plate 92 to guide the movement of the plug 91.

[0258] It can be understood that the reset plate 92 is provided with a movement channel for the guide rod 93, which limits the movement direction of the guide rod 93 and ensures the smooth entry and exit of the plug 91.

[0259] Referring to Figure 24, the knob structure 9 can include a spring 94. The spring 94 is sleeved on the guide rod 93, and the two ends of the spring 94 abut against the limiting ring 96 and the reset plate 92 respectively. Among them, the spring 94 provides elastic force for realizing the reset action of the plug 91, and ensures that the plug 91 exits the plug-in part 123 and keeps in the state of exiting the plug-in part 123 under the action of no external force.

[0260] The knob structure 9 can include a knob 95, which realizes the locking and releasing of the metal grille 1224 by rotating the knob 95. Referring to Figures 26 to 28 , the knob 95 is rotatably connected in the plug 91 through the metal grille 1224, and the knob 95 has an open position and a closed position. Among them, when the knob 95 is in the closed position, the plug 91 is inserted into the plug-in part 123; when the knob 95 is in the open position, the plug 91 exits the plug-in part 123.

[0261] The closed position of the knob 95 is fixed by the cooperation of the limiting ring 96 and the reset plate 92, which ensures that the plug 91 is tightly connected with the plug-in part 123. The open position of the knob 95 is ensured by the elastic restoring force of the spring 94, which ensures that the plug 91 keeps in the state of exiting the plug-in part 123.

[0262] In this embodiment, referring to Figure 25 , when the knob 95 is rotated to the closed position, the plug 91 is inserted into the plug-in part 123 on the air inlet panel 12 to realize locking. Referring to Figure 28 , when the knob 95 is rotated to the open position, the elastic force of the spring 94 pushes the guide rod 93 to drive the plug 91 to exit the plug-in part 123, realizing releasing.

[0263] When installing the metal grille 1224, place the metal grille 1224 at the specified position of the air inlet panel 12, so that the plug 91 is aligned with the plug-in part 123. Rotate the knob 95 to the closed position, and the plug 91 is inserted into the plug-in part 123 under the driving of the guide rod 93, and the spring 94 is compressed. When disassembling the metal grille 1224, rotate the knob 95 to the open position, and the elastic force of the spring 94 pushes the guide rod 93 and the plug 91 to exit the plug-in part 123. After the plug 91 exits, the metal grille 1224 can be easily disassembled from the air inlet panel 12 for maintenance or cleaning.

[0264] By setting the knob structure 9, the user or maintenance personnel can manually rotate to realize the fixation of the metal grille 1224 and the air inlet panel 12, and the metal grille 1224 can be quickly disassembled and installed without tools, which greatly simplifies the maintenance and cleaning operation, improves the maintenance efficiency and user experience. At the same time, the knob 95 is firmly connected between the plug 91 and the metal grille 1224, and can only realize the rotating action. When the metal grille 1224 is disassembled for maintenance and cleaning operation, it will not be separated from the metal grille 1224, avoiding the risk of losing the knob 95 after disassembly, and improving the user experience.

[0265] In some embodiments of the present application, with reference to Figure 26 , Figure 27 , the knob 95 can include a rotating portion 951 extending in a direction perpendicular to the metal grid 1224.

[0266] With reference to Figure 30 , Figure 31 , the rotating portion 951 has a length dimension L and a width dimension W in a cross section perpendicular to the extending direction of the rotating portion 951, where L is greater than W.

[0267] The plug 91 is provided with a receiving portion 911 on the side facing the metal grid 1224, the receiving portion 911 is adapted to the rotating portion 951 for receiving the rotatable rotating portion 951.

[0268] With reference to Figure 30 , when the rotating portion 951 is rotated to a state that the width direction of the rotating portion 951 is parallel to the extending direction of the guide rod 93, and one end of the width direction of the rotating portion 951 abuts against the side wall of the receiving portion 911 close to the air inlet panel 122, the knob 95 is in the open position.

[0269] With reference to Figure 31 , when the rotating portion 951 is rotated to a state that the length direction of the rotating portion 951 is parallel to the extending direction of the guide rod 93, and both ends of the length direction of the rotating portion 951 abut against the opposite side walls of the receiving portion 911, the knob 95 is in the closed position.

[0270] When the knob 95 is rotated from the closed position to the open position, the elastic force of the spring 94 pushes the guide rod 93 to move towards the direction away from the air inlet panel 12 to the state that the plug 91 abuts against the rotating portion 951.

[0271] In the present embodiment, by setting the shape and movement direction of the rotating portion 951, the knob 95 has a clear closed position and open position. The user can realize the insertion and withdrawal of the plug 91 by rotating the knob 95, which is simple and intuitive, and the user can easily master it. In the open position, the elastic reset function of the spring 94 ensures that the plug 91 can reliably withdraw from the plug-in portion 123, improving the reliability of the knob structure 9.

[0272] In some embodiments, with reference to Figure 29 , the metal grid 1224 is provided with an indication mark 1221 on the side away from the second inner cavity. The indication mark 1221 includes but is not limited to a rotation direction symbol, an Open symbol (or an ON symbol), and a Close symbol (or an OFF symbol), so that the user can directly operate according to the correct direction through the prompt of the indication mark 1221, ensuring that the knob 95 can be accurately rotated to the closed position or the open position.

[0273] With reference to Figure 26 The knob 95 can include a hand-holding portion 953. The hand-holding portion 953 extends through the mounting hole 1222 on the metal grille 1224 to the outside of the machine body 1. In this embodiment, the hand-holding portion 953 is formed by extending from one end of the rotating portion 951 close to the metal grille 1224 along the extending direction of the hand-holding portion 953.

[0274] By providing the hand-holding portion 953, the user can hold the hand-holding portion 953 to rotate the knob 95.

[0275] The knob 95 can include a stop portion 952 connected between the rotating portion 951 and the hand-holding portion 953. The stop portion 952 is in contact with the side of the metal grille 1224 close to the plug 91, and is used to limit the knob 95 from being pulled out of the mounting hole 1222.

[0276] It can be understood that the outer diameter of the stop portion 952 is greater than the hole diameter of the mounting hole 1222.

[0277] In this embodiment, the hand-holding portion 953 extends to the outside of the machine body 1, so that the user can directly operate the knob 95 without the need for additional tools. The stop portion 952 prevents the knob 95 from being pulled out of the mounting hole 1222, so that the knob 95 is stably connected between the metal grille 1224 and the plug 91, and the reliability of the connection is improved.

[0278] In some embodiments, the guide rod 93 is detachably connected to the plug 91. By providing detachable connection between the guide rod 93 and the plug 91, the installation of the knob 95 is facilitated.

[0279] When the knob structure 9 is assembled to the metal grille 1224, the knob 95 is installed in the mounting hole 1222 of the metal grille 1224, and the stop portion 952 prevents it from being pulled out of the mounting hole 1222. The end of the guide rod 93 away from the limiting ring 96 is inserted through the reset plate 92 and connected to the plug 91, so that the rotating portion 951 and the stop portion 952 of the knob 95 are accommodated between the metal grille 1224 and the plug 91.

[0280] With reference to Figure 26 The guide rod 93 can be a bolt 931. The bolt 931 can be a hexagonal bolt. The head of the bolt 931 forms the limiting ring 96, and the end of the rod of the bolt 931 away from the head is threadedly connected to the plug 91 through the reset plate 92.

[0281] In this embodiment, by selecting the bolt 931 as the guide rod 93, the threaded connection between the guide rod 93 and the plug 91 can be achieved. The threaded connection makes the connection between the guide rod 93 and the plug 91 more firm, improves the stability of the structure, facilitates the installation of the knob 95, and eliminates the need to consider the length of the external thread on the guide rod 93.

[0282] In addition, the head of the bolt 931 forms a limiting ring 96, and there is no need to additionally design and manufacture a separate limiting ring 96, thereby simplifying the overall structure, reducing the number of parts and assembly steps.

[0283] Further, the rod of the bolt 931 is provided with a sleeve 97 for sleeving the spring 94. The sleeve 97 is sleeved on the outside of the rod.

[0284] With reference to Figure 26 , the end of the sleeve 97 close to the head of the bolt is provided with a flange ring 971. Among them, the spring 94 abuts against the head through the flange ring 971.

[0285] By setting the sleeve 97, the spring 94 is completely isolated from the external threads of the bolt 931, avoiding direct contact, reducing friction and interference, and ensuring the normal work of the spring 94. The spring 94 can freely stretch and contract in the sleeve 97, reducing friction and wear.

[0286] In some embodiments, the bottom of the plug 91 is in contact with the metal grid 1224. That is, the plug 91 can slide on the metal grid 1224 in the axial direction of the guide rod 93 under the action of the guide rod 93.

[0287] In this embodiment, the bottom of the plug 91 is in contact with the metal grid 1224, so that the metal grid 1224 can support the plug 91. When the guide rod 93 moves, the plug 91 can slide on the metal grid 1224, which can ensure the accurate alignment and connection of the plug 91 and the plug-in part 123.

[0288] With reference to Figure 27 , the plug 91 is provided with a avoiding part 912 corresponding to the stop part 952. The existence of the avoiding part 912 provides space for the movement of the plug 91, avoids direct interference between the plug 91 and the stop part 952, and ensures the normal rotation of the knob 95 and the linear motion of the plug 91.

[0289] With reference to Figure 27 , in some embodiments, the plug 91 can include a body 913 connected with the guide rod 93. Among them, the body 913 is in contact with the metal grid 1224, and the containing part 911 is arranged on the body 913.

[0290] The plug 91 can include a plug-in part 914 arranged at one end of the body 913 away from the guide rod 93, and the plug-in part 914 is used for inserting or withdrawing from the plug-in part 123. Among them, one end of the plug-in part 914 is connected with the body 913, and the other end extends away from the guide rod 93 in the axial direction of the guide rod 93.

[0291] The plug 91 with the above structure is easy to process and assemble, and reduces production cost; the setting of the latch portion 914 enables the plug 91 to be accurately inserted into the insertion portion 123, and ensures reliable connection of the metal grille 1224 and the air inlet panel 12.

[0292] The end of the latch portion 914 away from the guide rod 93 can be hemispherical. The hemispherical structure can play a good guiding role when the latch portion 914 is inserted into the insertion portion 123, so that the latch portion 914 is more easily inserted into the insertion portion 123, and the convenience and efficiency of connection are improved.

[0293] In some embodiments, the edge of the metal grille 1224 has a flange 1223 extending into the second inner cavity, and the flange 1223 is used to mount the filter screen 126.

[0294] In some embodiments, the edge of the metal grille 1224 has a flange 1223 extending into the second inner cavity, and the flange 1223 is used to mount the filter screen 126.

[0295] Reference Figure 29 The flange 1223 is provided with a through hole 124 corresponding to the insertion portion 123. When the knob 95 is rotated to the closed position, the plug 91 is inserted into the insertion portion 123 through the through hole 124.

[0296] In the embodiment, the setting of the flange 1223 can increase the strength of the metal grille 1224, reduce deformation caused by external force during use or transportation, and improve the durability of the metal grille 1224.

[0297] Further, the plug 91 is provided with a notch compatible with the frame of the filter screen 126.

[0298] When the knob structure 9 is installed, the knob 95 is installed first, and then the plug 91 is installed. The plug 91 can be pushed from the edge of the flange 1223 structure of the metal grille, and the notch avoids interference between the plug 91 and the frame of the filter screen 126. When the plug 91 is pushed to correspond to the through hole 124, the connection of the plug 91 and the guide rod 93 is completed, and the installation of the knob structure 9 is realized.

[0299] In some embodiments of the present application, one end of the metal grille 1224 is rotationally connected to the rear shell 11. When the metal grille 1224 is installed, one end thereof is rotationally connected to the rear shell 11, the metal grille 1224 is flipped to have the other end thereof face the air inlet panel 12, and the connection of the metal grille 1224 and the air inlet panel 12 is realized through the knob structure 9.

[0300] Specifically, referring to Figure 32The metal grille 1224 is provided with an elastic buckle 10 at one end away from the air inlet panel 12, and the elastic buckle 10 is pivotally connected with the metal grille 1224 to allow the metal grille 1224 and the elastic buckle 10 to be relatively flipped about the pivot axis.

[0301] The rear shell 11 is provided with a clamping portion 112 adapted to be connected with the elastic buckle 10, and the elastic buckle 10 is connected in the clamping portion 112 to connect the metal grille 1224 with the rear shell 11.

[0302] In some embodiments of the present application, the elastic buckle 10 can include a pivot portion 101. Figure 33 The clamping portion 112 is a clamping groove structure.

[0303] By connecting the metal grille 1224 with the rear shell 11 through the elastic buckle 10, the relative flipping action between the metal grille 1224 and the rear shell 11 can be achieved without the need for external assistance, and the metal grille 1224 and the rear shell 11 can be quickly connected and disassembled, improving the assembly and maintenance convenience and thus improving the production efficiency.

[0304] In some embodiments of the present application, the elastic buckle 10 can include a pivot portion 101. Figure 34 The pivot portion 101 is connected with the metal grille 1224 to allow the elastic buckle 10 to be relatively flipped about the pivot axis. When the metal grille 1224 is installed on the rear shell 11 through the elastic buckle 10, the pivot portion 101 provides a stable rotation fulcrum.

[0305] The pivot portion 101 includes two spaced-apart pivot arms 1011. Figure 35

[0306] The pivot arms 1011 are L-shaped, one end of the pivot arms 1011 is connected with the embedded portion 102, and the other end of the pivot arms 1011 is provided with a connecting shaft 1012. The connecting shaft 1012 is arranged on the side faces of the two pivot arms 1011 away from each other.

[0307] Further, the metal grille 1224 is provided with a connecting seat 125, the connecting seat is provided with two shaft holes 1251 spaced apart, and the two connecting shafts 1012 are respectively connected in the two shaft holes 1251.

[0308] It can be understood that the two spaced-apart pivot arms 1011 are elastic, and when the connecting shaft 1012 is installed, the operator holds the two pivot arms 1011 to make the ends of the two pivot arms 1011 away from the embedded portion 102 close to each other, and then releases the two pivot arms 1011 after the two connecting shafts 1012 are aligned with the two shaft holes, and the pivot arms 1011 return to their original state to achieve the installation of the connecting shaft 1012.

[0309] ​The pivot part 101 of the structure can effectively avoid complex assembly steps and the use of complex assembly tools, so that the installation process of the elastic buckle 10 on the metal grid 1224 is more simple and fast, and the installation efficiency is significantly improved.

[0310] With reference to Figure 35 , the elastic buckle 10 can include an embedded part 102 connected with the pivot part 101. The embedded part 102 has a U-shaped structure.

[0311] One end of the embedded part 102 is closed for insertion of the clamping part 112, and the opposite end is open. The open end of the embedded part 102 is bent to form a first limiting part 1023 for limiting the distance of the elastic buckle 10 inserted into the clamping part 112.

[0312] The opposite two first side walls 1021 of the embedded part 102 are provided with openings 1022. The elastic buckle 10 can include elastic arms 103 provided at the openings 1022. In the embodiment, two elastic arms 103 are provided on the first side wall 1021 at intervals.

[0313] With reference to Figure 36 , one end of the elastic arm 103 is connected with the side wall of the opening 1022 away from the opening, and the other end of the elastic arm 103 extends through the first limiting part 1023 to the outside of the embedded part 102 to form a free end.

[0314] The elastic buckle 10 can include a second limiting part 1031 provided on the side of the two elastic arms 103 away from each other. The first limiting part 1023 and the second limiting part 1031 form a clamping structure for clamping the metal grid 1224.

[0315] In the embodiment, through the joint action of the first limiting part 1023 and the second limiting part 1031, it is ensured that the elastic buckle 10 can be stably fixed in the clamping part 112.

[0316] With reference to Figure 39 , Figure 40 , the elastic arm 103 has a gap between the first side wall 1021 and the first limiting part 1023, which allows the elastic arm 103 to be elastically deformed.

[0317] When the metal grid 1224 is installed, the metal grid 1224 is close to the rear shell 11, and the embedded part 102 of the elastic buckle 10 is aligned with the clamping part 112 on the rear shell 11. With reference to Figure 37When the elastic buckle 10 is pressed in the depth direction of the clamping part 112, the elastic arm 103 is elastically deformed when the embedded part 102 is gradually inserted into the clamping part 112, until the metal grating 1224 at both ends of the clamping part 112 is clamped in the clamping structure formed between the first limiting part 1023 and the second limiting part 1031 (as shown in Figure 38

[0318] When the metal grating 1224 is disassembled, the operator pinches the free ends of the two elastic arms 103 with his hand, so that the elastic arm 103 is elastically deformed, thereby moving the embedded part 102 outward, so that the elastic buckle 10 is separated from the clamping part 112, thereby disconnecting the metal grating 1224 and the rear shell 11.

[0319] In this embodiment, the elastic buckle 10 provides stable connection through the cooperation of the elastic arm 103, the first limiting part 1023 and the second limiting part 1031; at the same time, the elastic deformation of the elastic arm 103 is used to cooperate with the clamping part 112 to realize clamping and release, which greatly improves the efficiency of installation and disassembly.

[0320] Referring to Figure 39 , one end of the second limiting part 1031 extends to the closed end of the supporting part. In the direction from the connecting end to the free end of the elastic arm 103, the second limiting part 1031 gradually moves away from the elastic arm 103.

[0321] This setting makes the elastic arm 103 have a larger elastic deformation space in the direction from its connecting end to its free end, allowing the elastic arm 103 to deform more greatly when subjected to external force, thereby better adapting to the shape and size of the clamping part 112. At the same time, in the clamping process, the elastic arm 103 can more smoothly enter the clamping part 112, reducing the resistance in the clamping process. In the release process, the elastic arm 103 can more easily exit from the clamping part 112, optimizing the disassembly process and improving the convenience of operation.

[0322] In some embodiments of the present application, the knob structure 9 can include a reset plate 92 fixedly connected to the side of the metal grating 1224 facing the second inner cavity, for providing support and guidance for the entire knob structure 9.

[0323] The knob structure 9 can include a knob plug. The knob plug can include a plug 91 which can be placed on the metal grating 1224 and the plug 91 is closer to the air inlet panel 12 relative to the reset plate 92.

[0324] ​The knob structure 9 can include a guide rod 93. One end of the guide rod 93 is connected with the plug 91, and the other end penetrates through the reset plate 92 to be connected with a limiting ring 96, which is used to limit the guide rod 93 from being pulled out of the reset plate 92. Wherein, the guide rod 93 moves along the axial direction of itself relative to the reset plate 92.

[0325] The knob structure 9 can include a spring 94. The spring 94 is sleeved outside the guide rod 93, and two ends of the spring 94 are respectively abutted with the limiting ring 96 and the reset plate 92.

[0326] The knob structure 9 can include a knob 95, which is rotatably connected in the plug 91 through the metal grille 1224. The rotatably arranged knob 95 is used to pull or reset the spring 94, so that the plug 91 is inserted into or withdrawn from the plug-in part 123.

[0327] In the embodiment, by arranging the knob structure 9, the knob 95 is used to pull or reset the spring 94 by rotating, so that the plug 91 is inserted and withdrawn, which is simple to operate, and the user can quickly disassemble and install the metal grille 1224 without tools, greatly simplifying the maintenance and cleaning operation, and improving the user experience. At the same time, the knob 95 is rotatably connected between the plug 91 and the metal grille 1224, so that the metal grille 1224 will not be lost when it is disassembled for maintenance and cleaning operation, and the user experience is improved.

[0328] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0329] In order to facilitate explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained according to the above teachings. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. A ceiling-suspended indoor unit of an air conditioner, characterized by comprising: The application relates to an air conditioner, which comprises a body, a rear shell, an air inlet panel, an indoor heat exchanger, a heat exchange fan, a metal grille, a plug-in part and a knob structure. The body is internally arranged with a first inner cavity and a second inner cavity in a width direction; the rear shell is provided with an air outlet communicating with the first inner cavity; the air inlet panel is arranged on the rear shell and located on one side of the air outlet; the air inlet panel is provided with an air inlet communicating with the second inner cavity; the indoor heat exchanger is arranged in the first inner cavity; the heat exchange fan is arranged in the second inner cavity; the metal grille is arranged at the air inlet and detachably connected with the air inlet panel and the rear shell at two ends; the plug-in part is arranged on the air inlet panel; the knob structure is installed on the metal grille and detachably connected with the air inlet panel through the knob structure; the knob structure comprises a reset plate fixedly connected with the side of the metal grille facing the second inner cavity, a guide rod arranged in the reset plate and moving along the axial direction of the guide rod relative to the reset plate, a limiting ring arranged at the end of the guide rod away from the air inlet panel and used for limiting the guide rod from being taken out of the reset plate, a spring sleeved on the guide rod and abutting at two ends with the limiting ring and the reset plate, a plug connected with the end of the guide rod close to the air inlet panel, and a knob rotatably connected with the plug through the metal grille; the knob has an open position and a closed position; when the knob is rotated to the closed position, the plug is inserted into the plug-in part; when the knob is rotated to the open position, the elastic force of the spring makes the plug exit the plug-in part. The knob comprises a rotating part extending in a direction perpendicular to the metal grille; the length and width of the rotating part in a cross section perpendicular to the extending direction of the rotating part are L and W respectively, wherein L is greater than W; the side of the plug facing the metal grille is provided with a receiving part matched with the rotating part and used for receiving the rotatable rotating part; when the rotating part is rotated to be parallel with the extending direction of the guide rod in the length direction of the rotating part and the two ends of the length direction of the rotating part are in contact with the opposite two side walls of the receiving part, the knob is in the closed position; when the rotating part is rotated to be parallel with the extending direction of the guide rod in the width direction of the rotating part and one end of the width direction of the rotating part is in contact with the side wall of the receiving part close to the air inlet panel, the knob is in the open position. The knob comprises a stop part and a hand-held part connected with the rotating part in sequence; the hand-held part extends to the outside of the body through the mounting hole of the metal grille; the stop part is in contact with the side of the metal grille close to the plug and used for limiting the knob from being taken out of the mounting hole. During the switching of the knob between the open position and the closed position, the plug is in sliding connection with the metal grille and is provided with a avoiding part corresponding to the stop part. ​ ​ ​ ​ ​ ​ ​ ​ ​ 2.The indoor unit of the ceiling-suspended air conditioner according to claim 1, characterized by, ​ ​ ​ 3.The indoor unit of the ceiling-suspended air conditioner according to claim 2, characterized by, ​ 4.The indoor unit of the ceiling-suspended air conditioner according to claim 3, characterized by, ​ 5.The indoor unit of the ceiling-suspended air conditioner according to claim 1, characterized by, The plug includes a body connected with the guide rod and a plug-in portion arranged at an end of the body away from the guide rod, the plug-in portion being used for plugging into or out of the plug-in portion. 6.The indoor unit of the ceiling-suspended air conditioner according to claim 1, characterized by, The guide rod is detachably connected with the plug; and / or the guide rod is a bolt, a head of the bolt forms the limiting ring, a rod of the bolt is provided with a sleeve for sleeving the spring, an end of the sleeve close to the head is provided with a flange ring, the spring abuts against the head through the flange ring, and an end of the rod away from the head penetrates through the reset plate and is threadedly connected with the plug. 7.The indoor unit of the ceiling-suspended air conditioner according to claim 1, characterized by, The metal grille has an edge with a turned-up edge extending into the second inner cavity, the turned-up edge being used for mounting a filter screen; the turned-up edge is provided with a through hole corresponding to the plug-in portion, and the plug is plugged into the plug-in portion through the through hole. 8.The indoor unit of the ceiling-suspended air conditioner according to claim 1, characterized by, An elastic buckle member is arranged at an end of the metal grille away from the air inlet panel, the elastic buckle member is pivotally connected with the metal grille, so that the metal grille and the elastic buckle member are relatively turned about a pivot axis; A clamping portion is arranged on the rear shell and connected with the elastic buckle member, the elastic buckle member is turned and connected in the clamping portion, so that the metal grille is connected with the rear shell. 9.The indoor unit of the ceiling-suspended air conditioner according to claim 8, characterized by, The elastic buckle member includes: a pivot portion connected with the metal grille; an embedded portion connected with the pivot portion, one end of the embedded portion is closed for being inserted into the clamping portion, the other end is open and the open end is bent to form a first limiting portion, and two opposite first side walls of the embedded portion are provided with openings; elastic arms arranged at the openings, one end of each elastic arm is connected with a side wall of the opening away from the open end, and the other end of each elastic arm penetrates through the first limiting portion to extend to the outside of the embedded portion to form a free end, and a gap is formed between each elastic arm and the first side wall and the first limiting portion; a second limiting portion arranged on the side surfaces of the two elastic arms away from each other, and a clamping structure for clamping the metal grille is formed between the first limiting portion and the second limiting portion.

10. A ceiling-suspended air conditioner indoor unit, characterized by comprising: It includes: a machine body, a first inner cavity and a second inner cavity are arranged in the machine body in a width direction, and the machine body includes: a rear shell, an air outlet is arranged on the rear shell and connected with the first inner cavity; an air inlet panel, the air inlet panel is arranged on the rear shell and located on one side of the air outlet, and an air inlet is arranged on the air inlet panel and connected with the second inner cavity; an indoor heat exchanger arranged in the first inner cavity; a heat exchanger fan arranged in the second inner cavity; a metal grille arranged at the air inlet, two ends of the metal grille are detachably connected with the air inlet panel and the rear shell, respectively; a plug-in portion arranged on the air inlet panel; a knob structure mounted on the metal grille, the metal grille is detachably connected with the air inlet panel through the knob structure, and the knob structure includes: a reset plate fixedly connected to a side of the metal grille facing the second inner cavity; a knob plug, the knob plug includes: a plug connected with the reset plate and close to the air inlet panel; A guide rod is connected with the plug at one end and has a limiting ring for limiting the guide rod from being pulled out of the reset plate at the other end, the guide rod moves along the axial direction of itself relative to the reset plate; A spring is sleeved on the guide rod, and two ends of the spring are respectively abutted against the limiting ring and the reset plate; A knob is rotatably connected in the plug through the metal grille, and is used for pulling or resetting the spring to make the plug inserted into or withdrawn from the plug-in part.

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