Air conditioner indoor unit

Abstract

The utility model relates to an indoor unit of air conditioner, it includes shell body, shell subassembly and baffle, shell subassembly includes first mounting piece and second mounting piece, first mounting piece includes first fixed part and at least one first volute part, second mounting piece includes second fixed part and at least one second volute part, at least one second volute part is integrally formed with baffle, first volute part is detachably connected on second volute part, second fixed part is detachably connected with shell body or / and is detachably connected with baffle, first fixed part is detachably connected on second fixed part. The first fixed part and first volute part of first mounting piece are integrally formed, are favorable to guarantee the coaxial degree of fan piece and motor piece assembly, second fixed part is separately formed, is favorable to reduce the mold complexity of second mounting piece, and second fixed part can also select sheet metal piece separately processing, to improve the support strength of fan piece.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning equipment technology, and in particular relates to an indoor air conditioning unit. Background Technology

[0002] An indoor unit is an air conditioning unit installed indoors. Ceiling-mounted indoor units are widely used because they occupy less usable indoor space. Conventional ceiling-mounted indoor units (often called ducted units) generally include a casing, and components such as a fan, heat exchanger, drip tray, and drain pump housed within the casing.

[0003] Among them, the fan is an important component in the ceiling-mounted indoor unit. Driven by the motor, it draws outdoor air into the ceiling-mounted indoor unit, where it is heat-exchanged by the internal heat exchanger and then output to the room to regulate the indoor temperature.

[0004] The motor and fan components are supported in the indoor unit by structures such as motor brackets and volutes made of sheet metal to meet their stable support requirements. The support structure of sheet metal has high manufacturing precision requirements and is prone to assembly deviations, which makes it difficult to guarantee the coaxiality of the fan components. In addition, the assembly of sheet metal components is difficult and requires a large number of parts, resulting in a reduction in overall assembly efficiency. Summary of the Invention

[0005] The purpose of this utility model is to provide an air conditioner indoor unit that solves the problems of easy installation deviation, high assembly difficulty, high cost, and low assembly efficiency in the sheet metal support structure used to support the motor and fan components in the existing indoor unit.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0007] This utility model proposes an indoor unit for an air conditioner, which includes:

[0008] outer shell;

[0009] A housing assembly disposed within the housing body, comprising a first mounting member and a second mounting member;

[0010] The first mounting component includes a first fixing part and at least one first volute part;

[0011] The second mounting component includes a second fixing part and at least one second volute part, a motor mounting cavity is formed between the first fixing part and the second fixing part, and a fan mounting cavity is formed between the first volute part and the corresponding second volute part; an air vent is formed on the housing assembly;

[0012] A partition having at least one ventilation opening, the partition being disposed on the air outlet side of the air outlet, the ventilation opening being connected to the corresponding air outlet;

[0013] In this configuration, at least one of the second volute portion is integrally formed with the partition plate, the first volute portion is detachably connected to the second volute portion, the second fixing portion is detachably connected to the outer shell and / or detachably connected to the partition plate, and the first fixing portion is detachably connected to the second fixing portion.

[0014] In some embodiments of this application, a clearance portion is formed on the side of the first fixing portion near the partition, and an extension portion is formed on the second fixing portion extending toward the first fixing portion. The extension portion is connected from bottom to top to the clearance portion, and the top of the extension portion is detachably connected to the outer casing.

[0015] In some embodiments of this application, a first support foot is formed at the bottom of the second fixing part, and a connecting hole is formed on the first support foot. The first support foot is detachably connected to the bottom plate of the housing by fasteners.

[0016] The second fixing part is fixed to the top plate and bottom plate of the outer casing through the extension part and the first support leg, respectively, so as to realize the connection and fixation of the second fixing part and ensure its stability during the operation of the motor components, improve the connection strength, and help reduce the shaking generated by the fan assembly during operation.

[0017] In some embodiments of this application, a first contact surface is formed on the first fixing part, a second contact surface is formed on the second fixing part, a positioning part is formed on the second contact surface, and a mating part adapted to the position of the positioning part is formed at the corresponding position of the first contact surface. One of the positioning part and the mating part is a convex part, and the other is a concave part or a hole.

[0018] The one-to-one correspondence between the positioning part and the mating part helps to achieve the effect of positioning and pre-fixing when assembling the first fixing part and the second fixing part, thereby improving the accuracy of assembly and facilitating subsequent connection and fixing.

[0019] In some embodiments of this application, a first fixing hole is formed on the first contact surface, and a second fixing hole is formed on the second contact surface. The first fixing part and the second fixing part are detachably connected by fasteners.

[0020] The number of first and second fixing holes is set according to actual needs. They serve to connect and fix the first and second fixing parts. The number of fasteners used is small, and the operation is simple and convenient.

[0021] In some embodiments of this application, an outer casing is formed thereon with an air inlet and an air outlet; the air inlet is formed on a first end face of the outer casing, and the air outlet is formed on a second end face of the outer casing; a heat exchanger is provided between the second end face and the partition plate; a motor component is provided in the motor mounting cavity; and a fan component is provided in the fan mounting cavity.

[0022] The first volute portion has a downward-opening first air passage recess on the side near the partition, and the second volute portion has a downward-opening second air passage recess on the side near the partition. The first air passage recess and the second air passage recess form an air passage opening, and the air passage opening and the ventilation opening are configured to deliver the airflow corresponding to the fan mounting cavity to the heat exchanger.

[0023] The air inlets and vents are matched one-to-one to ensure that the airflow is driven by the corresponding fan components and delivered to the heat exchanger for heat exchange.

[0024] In some embodiments of this application, a vortex portion is formed on the side of the first air passage recess opposite to the second air passage recess, and the vortex portion includes a plurality of vortex teeth spaced apart.

[0025] The vortex section is used to improve the uniformity of airflow output from the air inlet and outlet, reduce air pressure pulsation, avoid the generation of vortices, and thus reduce noise.

[0026] In some embodiments of this application, there are two first volute portions, which are located on both sides of the first fixing portion, and the first fixing portion is integrally formed with the two first volute portions.

[0027] There are two second volutes, located on both sides of the second fixing part, and both second volutes are integrally formed with the partition.

[0028] The two first volutes and the two second volutes form two fan mounting cavities, and the number of fan components is two, which helps to improve air intake efficiency and thus increase heat exchange efficiency.

[0029] In some embodiments of this application, the number of the first volute portion and the second volute portion is two or more, the first mounting member further includes a first bearing bracket, the first bearing bracket is integrally formed with the first fixing portion and the first volute portion, and the second mounting member further includes a second bearing bracket, the second bearing bracket is integrally formed with the partition plate.

[0030] In some embodiments of this application, the first bearing bracket is provided with a first insertion part and a clamping part, and the second bearing bracket is provided with a second insertion part and a slot part. One of the first insertion part and the second insertion part is an insertion protrusion and the other is an insertion recess. The insertion protrusion is connected to the insertion recess.

[0031] The clamp is a U-shaped structure with the opening facing upwards. The connecting end of the clamp is connected to the first bearing bracket. A positioning port is formed on the free end of the clamp. A positioning protrusion is formed on the side wall of the slot. The clamp is connected to the slot and the positioning protrusion is connected to the positioning port.

[0032] The first and second insertion parts serve to position and connect the first and second bearing brackets during the connection process. When the clamp is inserted into the slot, its free end is compressed towards the connection end. Under its own restoring force, the positioning port connects to the positioning protrusion, realizing the rapid connection of the first and second bearing brackets. This helps to improve assembly efficiency and reduce the use of fasteners such as screws.

[0033] Compared with the prior art, the advantages and positive effects of this utility model are:

[0034] The air conditioner indoor unit involved in this application has a fan assembly in which the first mounting part and the second mounting part used to support the motor and fan are both injection molded, which has a lower cost and lighter overall weight, which is conducive to the lightweight improvement of the air conditioner indoor unit.

[0035] In addition, the first fixing part and the first volute part in the first mounting part are integrally formed, which helps to ensure the coaxiality of the fan and motor parts during assembly; the second volute and the partition in the second mounting part are integrally formed, which helps to reduce the assembly difficulty, reduce the use of parts in traditional sheet metal assembly, reduce assembly difficulty and increase assembly efficiency.

[0036] The second fixing part used to support the motor component is machined separately, which reduces the complexity of the mold required for machining the second mounting part, reduces the difficulty of demolding, and improves the processing efficiency. In addition, in order to improve the support strength of the motor component, the second fixing part can also be manufactured separately using sheet metal parts, which provides greater flexibility in material selection while ensuring its structural strength.

[0037] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is an external structural diagram of the indoor unit of an air conditioner according to an embodiment;

[0040] Figure 2 This is an internal structural diagram of the indoor unit of an air conditioner according to an embodiment;

[0041] Figure 3 This is a structural diagram of a wind turbine assembly according to an embodiment;

[0042] Figure 4 This is an exploded view of the wind turbine assembly according to an embodiment;

[0043] Figure 5 This is a structural diagram of the second fixing part according to an embodiment;

[0044] Figure 6 This is one of the structural diagrams of the first mounting component according to an embodiment;

[0045] Figure 7 This is a second structural diagram of the first mounting component according to an embodiment;

[0046] Figure 8 This is an exploded view of another embodiment of the wind turbine assembly according to the embodiments;

[0047] Figure 9 Assembly drawing of the first bearing bracket and the second bearing bracket;

[0048] Figure 10 This is a structural diagram of the first bearing bracket;

[0049] Figure 11 This is a structural diagram of the second bearing bracket;

[0050] Figure label:

[0051] 100. Outer casing; 110. First end face; 111. Air inlet; 120. Second end face; 121. Air outlet;

[0052] 200. Fan components;

[0053] 210. First installation component;

[0054] 211. First volute portion; 2111. First snap-fit ​​portion; 2112. First latching portion; 2113. Limiting portion; 2114. Vortex portion;

[0055] 212. First fixing part; 2121. First fixing hole; 2122. Clearance part; 2123. Mating part;

[0056] 213. First bearing bracket; 2131. First bearing half cavity; 2132. First insertion part; 2133. Clamp; 2134. Positioning port; 2135. Locking block; 2136. Third fixing hole;

[0057] 220. Second mounting component; 2201. Volute housing half-cavity;

[0058] 221. Second volute portion; 2211. Second snap-fit ​​portion; 2212. Second latching portion; 2213. Receiving portion;

[0059] 222, Second fixing part; 2221, Second contact surface; 2222, Positioning part; 2223, Second fixing hole; 2224, Extension part; 2225, Motor half cavity; 2226, First support leg;

[0060] 223. Second bearing bracket; 2231. Second bearing half cavity; 2232. Second insertion part; 2233. Slot part; 2234. Second support leg part;

[0061] 300. Partition; 301. First connecting part; 302. Ventilation opening;

[0062] 400. Heat exchanger;

[0063] 500. Water pump assembly;

[0064] 600. Electrical box. Detailed Implementation

[0065] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0066] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0067] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0068] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0069] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0070] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0071] In this application, the air conditioner performs a refrigeration cycle by using a compressor, condenser, expansion valve, and evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.

[0072] Low-temperature, low-pressure refrigerant enters the compressor, which compresses it into a high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0073] The expansion valve expands the high-temperature, high-pressure liquid refrigerant that condenses in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner regulates the temperature of the indoor space.

[0074] The outdoor unit of an air conditioner refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit of an air conditioner includes the indoor heat exchanger, and an expansion valve can be provided in either the indoor or outdoor unit.

[0075] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0076] refer to Figure 1 , Figure 2 One embodiment of this application provides an indoor air conditioning unit, comprising:

[0077] The outer casing 100 includes a top plate, a bottom plate, and peripheral side plates surrounding the top plate and the bottom plate, forming an installation cavity.

[0078] The peripheral side plate includes a first end face 110 and a second end face 120 disposed opposite to each other. The outer shell 100 is provided with an air inlet 111 and an air outlet 121. The air inlet 111 is formed on the first end face 110 and the air outlet 121 is formed on the second end face 120.

[0079] Airflow from outside the housing 100 enters the mounting cavity of the housing 100 through the air inlet 111 and is output to the outside of the housing 100 through the air outlet 121.

[0080] The heat exchanger 400 is installed in the mounting cavity, located inside the air outlet 121. The heat exchanger 400 is configured to exchange heat with the flowing air to form a heat exchange airflow. Specifically, the airflow that enters the outer casing 100 from the air inlet 111 is heat-exchanged by the heat exchanger 400 and then exits the outer casing 100 from the air outlet 121.

[0081] A fan assembly 200 is installed inside the cavity. The fan assembly 200 is specifically located inside the air inlet 111 and is used to drive the airflow.

[0082] refer to Figure 3 , Figure 4 The fan assembly 200 includes a motor, a fan, a partition 300, and a housing assembly. The housing assembly includes a first mounting member 210 and a second mounting member 220. The motor is used to drive the fan to rotate, providing power for the rotation of the fan so that external airflow enters the housing 100 through the air inlet 111 and the airflow in the housing 100 is output from the air outlet 121.

[0083] The first mounting member 210 includes a first fixing part 212 and at least one first volute part 211, and the second mounting member 220 includes a second fixing part 222 and at least one second volute part 221. The first mounting member 210 and the second mounting member 220 are arranged vertically.

[0084] The first fixing part 212 and the second fixing part 222 each form a motor half cavity 2225. The two motor half cavities 2225 are arranged vertically opposite each other to form a motor mounting cavity.

[0085] refer to Figure 6 The first volute portion 211 and the second volute portion 221 each have a volute half cavity 2201 formed therein, and the two volute half cavities 2201 are arranged vertically opposite each other to form a fan mounting cavity.

[0086] The motor components are housed in the motor mounting cavity, and the fan components are housed in the fan mounting cavity.

[0087] At both ends of the first volute 211 and the second volute 221, air guide plates are formed to facilitate airflow input. The air guide plates have an arc-shaped structure, which helps to improve the smoothness of airflow entering the fan mounting cavity and increase the air intake volume.

[0088] The first fixing part 212 and the second fixing part 222 are used to support the motor component, which is connected to the fan component through a transmission shaft to drive the motor component to move.

[0089] The first mounting component 210 and the second mounting component 220 in the fan assembly 200 are located on the same side of the partition 300, specifically on the side of the partition 300 near the air inlet 111.

[0090] refer to Figure 4 A vent 302 is formed on the partition 300. The vent 302 is connected to the fan mounting cavity. The airflow generated by the fan component passes through the fan mounting cavity and is output from the vent 302 to the heat exchanger 400. After heat exchange in the heat exchanger 400, it is output from the air outlet 121.

[0091] In some embodiments of this application, a first air passage recess with a downward opening is formed on the side of the first volute portion 211 near the partition plate 300, and a second air passage recess with a downward opening is formed on the side of the second volute portion 221 near the partition plate 300. The first air passage recess and the second air passage recess form an air passage in the connected state, and the air passage is connected to the ventilation port 302.

[0092] The air vent and air outlet 302 are configured to deliver airflow from the corresponding fan mounting cavity to the heat exchanger 400.

[0093] In other embodiments, a vortex portion 2114 is formed on the side of the first air passage recess opposite to the second air passage recess, and the vortex portion 2114 includes a plurality of vortex teeth spaced apart.

[0094] In other words, the vortex section 2114 is located on the top wall of the first air passage recess. The design of the vortex teeth helps to evenly distribute the airflow passing through the air passage towards the heat exchanger 400, reduce air pressure pulsation, avoid the generation of vortices, and thus reduce noise.

[0095] In order to improve the production and assembly efficiency of the partition 300, the first mounting component 210, and the second mounting component 220, the partition 300, the first mounting component 210, and the second mounting component 220 are all made of plastic and are processed by injection molding.

[0096] In this application, at least one second volute portion 221 is integrally formed with the partition plate 300, the first volute portion 211 is detachably connected to the second volute portion 221, the second fixing portion 222 is detachably connected to the outer shell 100, and the first fixing portion 212 is detachably connected to the second fixing portion 222.

[0097] In some embodiments of this application, the first fixing part 212 and the first volute part 211 are both made of plastic and are integrally molded by injection molding.

[0098] The second volute 221 and the partition 300 are made of plastic and are also injection molded in one piece, which facilitates processing and assembly.

[0099] The material of the second fixing part 222 can be plastic or sheet metal to improve its structural strength and increase the stability of the motor components.

[0100] During installation, first connect the second fixing part 222 between the top plate and the bottom plate of the outer casing.

[0101] Then, the second volute portion 221 and the partition plate 300 are installed in the outer casing, and the second fixing portion 222 and the second volute portion 221 are installed on the same side of the partition plate 300.

[0102] Finally, the first fixing part 212 and the second fixing part 222 are connected and fixed, and the first volute part 211 and the second volute part 221 are connected and fixed.

[0103] refer to Figure 5 , Figure 6 In other embodiments, in order to improve the stability of the connection between the first fixing part 212 and the second fixing part 222 and to facilitate the positioning of the second fixing part 222, a clearance part 2122 is formed on the side of the first fixing part 212 near the partition 300, and a clearance opening is formed between the clearance part 2122 and the partition 300. An extension part 2224 extending toward the first fixing part 212 is formed on the second fixing part 222, and the extension part 2224 is connected to the clearance part 2122 from bottom to top.

[0104] In some embodiments of this application, a fastening hole is also provided on the top of the extension 2224 on the second fixing part 222. The fastener fixes the extension 2224 to the top plate of the housing 100 through the fastening hole, thereby improving the stability of the connection of the second fixing part 222.

[0105] The second fixing part 222 forms the first support leg 2226, and the first support leg 2226 also has a through connecting hole. The connecting hole is a through hole or a threaded hole. The first support leg 2226 is connected and fixed to the base plate by fasteners such as fastening bolts or fastening screws.

[0106] The second fixing part 222 is connected and fixed to the top plate and bottom plate of the outer casing at the top and bottom respectively, which helps to ensure the stability of the fan assembly 200 in the installation cavity and reduce shaking during operation.

[0107] In some other embodiments, the first fixing part 212 and the first volute part 211 are separate structures, and the first volute part 211 is made of plastic and is injection molded.

[0108] The first fixing part 212 can be formed by plastic molding or sheet metal molding to improve the structural strength of the first fixing part 212.

[0109] In some embodiments of this application, there are two first volute portions 211, which are located on both sides of the first fixing portion 212, and the first fixing portion 212 is integrally formed with the two first volute portions 211.

[0110] Correspondingly, there are two second volute portions 221, located on both sides of the second fixing portion 222, and both second volute portions 221 are integrally formed with the partition plate 300.

[0111] Alternatively, in some other embodiments, the first fixing part 212 and the two first volute parts 211 are separate structures. During installation, after the second volute parts 221 are assembled with the partition plate 300 inside the outer shell 100, the top of the second fixing part 222 is fixed to the top plate of the outer shell 100, and the bottom of the second fixing part 222 is fixed to the bottom plate of the outer shell 100. Then, the first fixing part 212 is fixed to the second fixing part 222, and the first volute parts 211 are fixed to the second volute parts 221.

[0112] The number of the first volute 211 and the second volute 221 can be set to two, corresponding to the number of fan components, which is beneficial to improve air delivery efficiency. The corresponding partition 300 also has two connecting ports, which correspond one-to-one with each fan mounting cavity.

[0113] In some other embodiments of this application, the number of the first volute portion 211 and the second volute portion 221 is two or more.

[0114] refer to Figure 8 For example, but not limited to, the number of the first volute portion 211 and the second volute portion 221 is three.

[0115] The first mounting component 210 also includes a first bearing bracket 213, which is integrally formed with the first fixing part 212 and the first volute part 211. The second mounting component 220 also includes a second bearing bracket 223.

[0116] One first volute 211 is provided on one side of the first fixing part 212, and two first volute 211 are provided on the other side. The number and position of the second volute 221 correspond one-to-one with each of the first volute 211.

[0117] In other embodiments, the first fixing part 212 on the first mounting member 210 and the adjacent first volute part 211 are separate structures.

[0118] The two adjacent first volute sections 211 can be designed as one piece or as separate pieces.

[0119] Alternatively, the first fixing part 212 can be designed as an integral part with any of the first volute parts 211 to meet the needs of processing and assembly.

[0120] In embodiments where the first fixing part 212 and the two adjacent first volute parts 211 are both separate structures, during installation, the second fixing part 222 is first fixed between the top plate and the bottom plate of the outer casing 100. Then, the partition 300 and the second volute part 221 are installed inside the outer casing 100. Subsequently, the fan component and the motor component are assembled, the first volute part 211 is fixed on the second volute part 221, and the first fixing part 212 is assembled on the first volute part 211.

[0121] In some other embodiments, the first mounting member 210 further includes a first bearing bracket 213, which is located at the end away from the first fixing part 212 and is integrally formed with the first fixing part 212 and the first volute part 211.

[0122] The second mounting component 220 also includes a second bearing bracket 223, which is integrally formed with the partition plate 300, and a bearing cavity is formed between the first bearing and the second bearing.

[0123] In other embodiments, the first bearing bracket 213 may also be designed to be machined separately from the adjacent first volute portion 211 and then fixed on the corresponding second bearing bracket 223 or the second volute portion 221.

[0124] The air conditioner indoor unit involved in this application has a fan assembly 200 in which the first mounting part 210 and the second mounting part 220 for supporting the motor and fan are both injection molded, which has a lower cost and lighter overall weight, which is conducive to the lightweight improvement of the air conditioner indoor unit.

[0125] In addition, the first fixing part 212 and the first volute part 211 in the first mounting part 210 are integrally formed, which helps to ensure the coaxiality of the fan and motor parts during assembly; the second volute and the partition plate 300 in the second mounting part 220 are integrally formed, which helps to reduce the assembly difficulty, reduce the use of parts in the traditional sheet metal assembly, reduce the assembly difficulty, and increase the assembly efficiency.

[0126] The second fixing part 222 used to support the motor component is machined separately, which helps to reduce the mold complexity of the second mounting part 220, reduce the demolding difficulty, and improve the processing efficiency.

[0127] In addition, to improve the support strength of the motor components, a second fixing part can be manufactured separately using sheet metal parts, which provides greater flexibility in material selection while ensuring structural strength.

[0128] In other embodiments, the first bearing bracket 213 may also be designed to be machined separately from the adjacent first volute portion 211 and then fixed on the corresponding second bearing bracket 223 or the second volute portion 221.

[0129] Fan components are typically mounted on a support shaft, which is connected to the motor shaft to transmit power. When multiple fan components are mounted on the same support shaft, one end of the support shaft is connected to the motor shaft via a coupling, while the other end of the support shaft needs to be supported by a bearing to ensure the stability of the support shaft.

[0130] In one embodiment, two fan components located on the same side of the motor component are connected together by a support shaft. One end of the support shaft is connected to the rotating shaft of the motor component, and the other end of the support shaft is provided with a bearing.

[0131] Specifically, a first bearing half cavity 2131 with an opening facing downward is formed on the first bearing bracket 213, and a second bearing half cavity 2231 with an opening facing upward is formed on the second bearing bracket 223. A bearing cavity is formed between the first bearing half cavity 2131 and the second bearing half cavity 2231, and the bearing is connected in the bearing cavity.

[0132] refer to Figures 5-7 The connection and fixing method of the first fixing part 212 and the second fixing part 222 will be described in detail below:

[0133] A first contact surface is formed on the first fixing part 212, a second contact surface 2221 is formed on the second fixing part 222, a positioning part 2222 is formed on the second contact surface 2221, and a mating part 2123 that matches the position of the positioning part 2222 is formed at the corresponding position of the first contact surface. One of the positioning part 2222 and the mating part 2123 is a convex part, and the other is a concave part or a hole.

[0134] In some embodiments, the positioning part 2222 is a protrusion formed on the second contact surface 2221 and extending upward, and the mating part 2123 is a positioning hole structure formed on the first contact surface and extending through it. When the first fixing part 212 and the second fixing part 222 are installed, the positioning part 2222 and the mating part 2123 are used to achieve the initial positioning of the first fixing part 212 and the second fixing part 222.

[0135] In some embodiments, in order to improve the accuracy of positioning, a set of positioning parts 2222 and a set of mating parts 2123 are respectively provided at both ends of the motor mounting cavity near and away from the partition plate 300 to achieve the initial connection and fixation of the first fixing part 212 and the second fixing part 222.

[0136] In other words, the one-to-one correspondence between the positioning part 2222 and the mating part 2123 is beneficial for positioning and pre-fixing during the assembly of the first fixing part 212 and the second fixing part 222, thereby improving the accuracy of assembly and facilitating subsequent connection and fixing.

[0137] In other embodiments, the first fixing part 212 and the second fixing part 222 are further connected and fixed by fasteners.

[0138] A first fixing hole 2121 is formed on the first contact surface, and a second fixing hole 2223 is formed on the second contact surface 2221. The first fixing part 212 and the second fixing part 222 are detachably connected by fasteners.

[0139] Both the first fixing hole 2121 and the second fixing hole 2223 are through holes. The fastener is a fastening bolt. The fastener passes through the first fixing hole 2121 and the second fixing hole 2223 and connects to the first fixing part 212 and the second fixing part 222.

[0140] To improve the connection strength, four of each of the first fixing holes 2121 and the second fixing holes 2223 are provided, symmetrically arranged on both sides of the motor mounting cavity. The number of fasteners used is small, and the operation is simple and convenient.

[0141] refer to Figure 6 , Figure 7 The connection and fixing method of the first volute portion 211 and the second volute portion 221 will be described in detail below:

[0142] In some embodiments of this application, the first volute portion 211 and the second volute portion 221 are engaged. The first volute portion 211 has a latching portion or a latching portion, and the second volute portion 221 has a latching portion or a latching portion at a corresponding position. The latching portion and the corresponding latching portion are detachably connected.

[0143] To improve the stability of the connection, in some embodiments of this application, a snap-fit ​​part or a latching part is provided at each of the four corners of the first volute 211 and the second volute 221, and the snap-fit ​​parts and latching parts on the first volute 211 and the second volute 221 correspond one-to-one.

[0144] For example, but not limited to, a first latching part 2112 extending downward is provided at two corners on the side of the first volute near the partition 300, and correspondingly, a second latching part 2211 is provided at two corners on the side of the second volute 221 near the partition 300, and the first latching part 2112 and the second latching part 2211 are detachably connected.

[0145] The first volute 211 has a first latching part 2111 at two corners on the side away from the partition 300, and the second volute has a second latching part 2212 at two corners on the side away from the partition 300. The second latching part 2212 is detachably connected to the first latching part 2111.

[0146] The snap-fit ​​part is a structure that extends in the direction of the corresponding snap-fit ​​part. It has a snap-fit ​​end formed at its end, a guide slope formed on the snap-fit ​​end, and a snap-fit ​​interface formed on the snap-fit ​​part. When connected, the snap-fit ​​end of the snap-fit ​​part extends to the other side of the snap-fit ​​interface to realize the connection between the snap-fit ​​part and the snap-fit ​​part.

[0147] In other embodiments, in order to further limit the first volute portion 211 and the second volute portion 221 during connection and prevent the buckle portion from being inserted into the slot portion 2233 to an excessive depth, thereby causing extrusion deformation of the first volute portion 211 and the second volute portion 221, this application provides a limiting structure between the first volute portion 211 and the second volute portion 221.

[0148] Specifically, a limiting portion 2113 is formed on the first volute portion 211, and a receiving portion 2213 is formed on the second volute portion 221. The limiting portion 2113 is a limiting protrusion formed at one end of the first volute portion 211 and extending outward. The receiving portion 2213 is formed at the corresponding end of the second volute portion 221. A limiting recess with an opening facing the limiting protrusion is formed on the receiving portion 2213. The limiting protrusion is connected to the limiting recess to limit the relative position of the first volute portion 211 relative to the second volute portion 221, so as to avoid excessive connection between the first volute portion 211 and the second volute portion 221 during the connection process, resulting in problems such as compression deformation.

[0149] refer to Figures 9-11 The connection and fixing of the first bearing bracket 213 and the second bearing bracket 223 will be described in detail below:

[0150] In some embodiments of this application, the first bearing bracket 213 is provided with a first insertion part 2132 and a clamping member 2133, and the second bearing bracket 223 is provided with a second insertion part 2232 and a slot part 2233. The first insertion part 2132 and the second insertion part 2232 are respectively a insertion protrusion and a insertion recess, and the insertion protrusion is connected to the insertion recess.

[0151] For example, the first insertion portion 2132 on the first bearing bracket 213 is an insertion protrusion extending toward the second bearing bracket 223, and the second insertion portion 2232 on the second bearing bracket 223 is a through-hole structure.

[0152] Of course, the second insertion part 2232 can also be designed as an insertion protrusion extending toward the first bearing bracket 213, and the insertion recess is formed on the first bearing bracket 213.

[0153] The clamp 2133 is a U-shaped structure with the opening facing upward. The connecting end of the clamp 2133 is connected to the first bearing bracket 213, and the other end is a free end. The free end of the clamp 2133 has a certain elasticity along the direction of approaching and away from the connecting end. When the clamp 2133 is connected to the groove 2233, the free end is squeezed towards the connecting end.

[0154] A positioning opening 2134 is formed on the free end of the clamp 2133, and a positioning protrusion is formed on the side wall of the groove 2233. The clamp 2133 is connected to the groove 2233, and the positioning protrusion is connected to the positioning opening 2134.

[0155] The first insertion part 2132 and the second insertion part 2232 play a positioning and connection role in the connection process of the first bearing bracket 213 and the second bearing bracket 223; when the clamp 2133 is inserted into the groove part 2233, the free end is compressed towards the connection end, and under the action of its own restoring force, the positioning port 2134 is connected to the positioning protrusion, realizing the rapid connection of the first bearing bracket 213 and the second bearing bracket 223, which is conducive to improving assembly efficiency and reducing the use of fasteners such as screws.

[0156] The free end of the clamp 2133 is also provided with a locking block 2135 extending outward from the direction of the connecting end. When the clamp 2133 is connected to the second insertion part 2232, the locking block 2135 is locked on the outside of the connection port of the second insertion part 2232, which plays a role in limiting the connection depth of the clamp 2133 and preventing the clamp 2133 from moving downward excessively, which would cause the positioning protrusion and the positioning port 2134 to be misaligned.

[0157] In some other embodiments, the first bearing bracket 213 is further provided with a third fixing hole 2136, and the second bearing bracket 223 is provided with a fourth fixing hole. The third fixing hole 2136 and the fourth fixing hole are detachably connected by fasteners to achieve a stable connection between the first bearing bracket 213 and the second bearing bracket 223.

[0158] The third fixing hole 2136 and the fourth fixing hole, based on the connection and fixation between the clamp 2133 and the slot 2233, further fix the first bearing bracket 213 and the second bearing bracket 223, which helps to improve the connection strength between the first bearing bracket 213 and the second bearing bracket 223 and ensure the stable connection of the bearings installed inside.

[0159] In some embodiments of this application, the top of the partition 300 is detachably connected to the top plate of the outer casing 100, and the bottom of the partition 300 is detachably connected to the bottom plate of the outer casing 100.

[0160] Specifically, a first connecting portion 301 is formed on the top of the partition 300, and the first connecting portion 301 extends to one side of the partition 300 to increase the contact area between the partition 300 and the top plate.

[0161] A through-hole is formed on the first connecting part 301. The connecting hole is either a through hole or a threaded hole. The first connecting part 301 is connected and fixed to the top plate by fasteners such as fastening bolts or fastening screws.

[0162] The second bearing bracket 223 has a second leg 2234 formed on it, and the second leg is detachably connected to the base plate of the outer casing 100.

[0163] The first support leg 2226 and / or the second bearing bracket 223 are further fixed to the base plate of the housing 100 by fasteners, which improves the stability of the fan assembly 200 installed in the housing 100, increases the connection strength, and helps to reduce the shaking of the fan assembly 200 during operation.

[0164] In some other embodiments, an electrical box 600 is also provided in the mounting cavity. The electrical box 600 is located next to the fan assembly 200 and contains a circuit board.

[0165] The circuit board integrates components such as a controller to control the operation of the indoor unit of the air conditioner.

[0166] A water collection tray is also provided at the bottom of the heat exchanger 400. The water collection tray is located at the bottom of the heat exchanger 400 and is used to collect the water generated by the defrosting of the heat exchanger 400.

[0167] In some other embodiments, a water pump assembly 500 is also provided in the mounting cavity. The water pump assembly 500 is located beside the heat exchanger 400 and includes a water pump that can draw water from the water receiving tray and discharge it.

[0168] In some embodiments of this application, a reinforcing rib is formed on the side of the first fixing part 212 away from the second fixing part 222, and the reinforcing ribs are arranged in an alternating manner to improve the structural strength of the first fixing part 212.

[0169] Similarly, a reinforcing rib is also provided on the outer side of the second fixing part 222 away from the first fixing part 212. The reinforcing ribs are arranged in an alternating manner, and each reinforcing rib extends vertically, which facilitates mold opening during processing.

[0170] In addition, a handle is formed on the first fixing part 212, extending in a direction away from the second fixing part 222. The handle is used to facilitate the operator's holding and improve the portability during loading and unloading.

[0171] In one embodiment, a bearing is also provided between the first fixing part 212, the second fixing part 222 and the motor component to ensure smooth rotation.

[0172] In order to improve the installation reliability of the bearing, extend the service life of the bearing, and reduce the noise generated by the bearing due to vibration during operation, a shock-absorbing component is fitted on the outside of the bearing, and the bearing is installed and fixed between the first fixed part 212 and the second fixed part 222 through the shock-absorbing component.

[0173] During use, the vibration generated by the fan during air delivery is transmitted to the bearing through the support shaft as the motor drives the support shaft to rotate.

[0174] The bearing is encased in a shock-absorbing component and sandwiched between the first fixing part 212 and the second fixing part 222. The shock-absorbing component buffers the vibration generated by the bearing, thereby reducing noise and extending the service life of the bearing.

[0175] In another embodiment, to facilitate the assembly of the shock-absorbing component by the operator, a limiting protrusion is provided on the shock-absorbing component, and the limiting protrusion extends outward toward the shock-absorbing component.

[0176] In one embodiment, a limiting groove is provided on the second fixing part 222, and a limiting protrusion is inserted into the limiting groove.

[0177] When the operator assembles the shock absorber on site, the limiting part 2113 of the shock absorber is inserted into the limiting groove so that the shock absorber is pre-assembled onto the second fixing part 222. After the first fixing part 212 is fixed onto the second fixing part 222, the shock absorber can be precisely clamped between the first fixing part 212 and the second fixing part 222 to ensure that the bearing is accurately installed in place.

[0178] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0179] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0180] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: outer shell; A housing assembly disposed within the housing body, comprising a first mounting member and a second mounting member; The first mounting component includes a first fixing part and at least one first volute part; The second mounting component includes a second fixing part and at least one second volute part, a motor mounting cavity is formed between the first fixing part and the second fixing part, and a fan mounting cavity is formed between the first volute part and the corresponding second volute part; an air vent is formed on the housing assembly; A partition having at least one ventilation opening, the partition being disposed on the air outlet side of the air outlet, the ventilation opening being connected to the corresponding air outlet; In this configuration, at least one of the second volute portion is integrally formed with the partition plate, the first volute portion is detachably connected to the second volute portion, the second fixing portion is detachably connected to the outer shell and / or detachably connected to the partition plate, and the first fixing portion is detachably connected to the second fixing portion.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The first fixing part has a clearance portion formed on the side near the partition, and the second fixing part has an extension portion extending toward the first fixing part. The extension portion is connected to the clearance portion from bottom to top, and the top of the extension portion is detachably connected to the top plate of the outer casing.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The bottom of the second fixing part has a first support foot, and the first support foot has a connecting hole. The first support foot is detachably connected to the bottom plate of the outer casing by fasteners.

4. The indoor unit of the air conditioner according to claim 1, characterized in that, A first contact surface is formed on the first fixing part, a second contact surface is formed on the second fixing part, a positioning part is formed on the second contact surface, and a mating part that matches the position of the positioning part is formed at the corresponding position of the first contact surface. One of the positioning part and the mating part is a convex part, and the other is a concave part or a hole.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, A first fixing hole is formed on the first contact surface, and a second fixing hole is formed on the second contact surface. The first fixing part and the second fixing part are detachably connected by fasteners.

6. The air conditioning indoor unit according to any one of claims 1-4, characterized in that, An air inlet and an air outlet are formed on the outer casing; the air inlet is formed on the first end face of the outer casing, and the air outlet is formed on the second end face of the outer casing; a heat exchanger is provided between the second end face and the partition plate; a motor component is provided in the motor mounting cavity; and a fan component is provided in the fan mounting cavity. The first volute portion has a downward-opening first air passage recess on the side near the partition, and the second volute portion has a downward-opening second air passage recess on the side near the partition. The first air passage recess and the second air passage recess form an air passage opening, and the air passage opening and the ventilation opening are configured to deliver the airflow corresponding to the fan mounting cavity to the heat exchanger.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, A vortex portion is formed on the side of the first air passage recess opposite to the second air passage recess, and the vortex portion includes a plurality of vortex teeth arranged at intervals.

8. The indoor unit of the air conditioner according to claim 1, characterized in that, There are two first volute portions, located on both sides of the first fixing portion, and the first fixing portion is integrally formed with the two first volute portions. There are two second volutes, located on both sides of the second fixing part, and both second volutes are integrally formed with the partition.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, The number of the first volute portion and the second volute portion is two or more. The first mounting component also includes a first bearing bracket, which is integrally formed with the first fixing portion and the first volute portion. The second mounting component also includes a second bearing bracket, which is integrally formed with the partition plate.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, The first bearing bracket is provided with a first insertion part and a clamping part, and the second bearing bracket is provided with a second insertion part and a slot part. One of the first insertion part and the second insertion part is an insertion protrusion and the other is an insertion recess. The insertion protrusion is connected to the insertion recess. The clamp is a U-shaped structure with the opening facing upwards. The connecting end of the clamp is connected to the first bearing bracket. A positioning port is formed on the free end of the clamp. A positioning protrusion is formed on the side wall of the slot. The clamp is connected to the slot and the positioning protrusion is connected to the positioning port.

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