Bracket assembly and air conditioner indoor unit

Abstract

The present invention relates to a bracket assembly and an air conditioner indoor unit. The bracket assembly comprises a support frame, the top surface of which is formed with a support structure for supporting a heat exchanger elbow; and a retaining frame, which is detachably mounted to the support frame and cooperates with the support frame to secure the heat exchanger elbow between the support frame and the retaining frame. The support structure provided on the top surface of the support frame and the retaining frame, which is detachably mounted on the support frame, facilitate assembly of the heat exchanger elbow and facilitate automated installation.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a bracket assembly and an air conditioning indoor unit. Background Art

[0002] The evaporator, as the heat exchange component of an air conditioner, plays a crucial role. Currently, evaporators on the market typically consist of heat exchange fins, a U-shaped copper tube for transmitting refrigerant, and other fixings. The fins are strung together and fixed to the U-tube, which is then secured with an angle bracket.

[0003] The installation direction of the evaporator angle bracket is the axial direction of the U-tube, that is, press the angle bracket from the side of the U-tube to assemble, insert the U-tube into the angle bracket and fix it, and then use two screws to fix the evaporator angle bracket to the bearing rubber seat on the bottom shell, and then fix the evaporator.

[0004] The above installation method has the problems of the angle bracket not being able to fix the U-tube properly, the difficulty of assembly, and the low installation efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a bracket assembly and an air conditioner indoor unit.

[0006] The present invention provides a bracket assembly, comprising: a support frame, the top surface of which is formed with a support structure, and the support structure is used to support a heat exchanger elbow; a limit frame, which is detachably mounted on the support frame and is used to cooperate with the support frame to fix the heat exchanger elbow between the support frame and the limit frame.

[0007] In some embodiments, the support frame is provided with a shaft hole, and the shaft hole is used to support the fan blade shaft.

[0008] In some embodiments, the support frame includes a bearing mounting seat, the bearing mounting seat is integrally formed with the support frame, and the shaft hole is formed in the bearing mounting seat.

[0009] In some embodiments, the support structure includes a plurality of grooves formed on the top surface of the support frame, the plurality of grooves correspond one-to-one to the heat exchanger elbows, and the grooves form a limiting space for restricting the heat exchanger elbows.

[0010] In some embodiments, a plurality of limiting structures are formed on the limiting frame or the supporting frame, and the plurality of limiting structures correspond one-to-one to the heat exchanger elbows, and the limiting structures are used to clamp and limit the corresponding heat exchanger elbows.

[0011] In some embodiments, each of the limiting structures includes a third limiting portion extending toward the top surface of the support frame, wherein when the limiting frame is installed on the support frame, the third limiting portion is located on the inner side of the heat exchanger elbow to limit the axial displacement of the heat exchanger elbow.

[0012] In some embodiments, the limiting structure also includes a first limiting portion and a second limiting portion, and the first limiting portion and the second limiting portion both extend toward the second side surface of the support frame so that the opening direction of the limiting structure is toward the outside of the heat exchanger elbow. When the limiting frame is installed on the support frame, the heat exchanger elbow is clamped and limited between the first limiting portion and the second limiting portion.

[0013] In some embodiments, the second limiting portion is closer to the top surface of the support frame than the first limiting portion, and an extension length of the second limiting portion is shorter than a length of the first limiting portion.

[0014] In some embodiments, a first clamping structure is formed on the top surface of the support frame; a second clamping structure is formed on the limit frame, wherein the first clamping structure and the second clamping structure are clamped together to install the limit frame on the support frame, wherein, when the first clamping structure and the second clamping structure are clamped together to install the limit frame on the support frame, the limit structure clamps and limits the heat exchanger elbow.

[0015] In some embodiments, a plurality of protrusions are formed on the top surface of the support frame, and the grooves are formed between the plurality of protrusions. The first clamping structure includes a first clamping hole or a first clamping buckle provided on the protrusions. The second clamping structure includes a first clamping buckle or a first clamping hole provided on the limit frame. The first clamping buckle is clamped with the first clamping hole to install the limit frame on the support frame.

[0016] In some embodiments, a positioning groove is provided on the protrusion, and the first card hole is provided on the side wall of the positioning groove; a positioning protrusion protruding toward the support frame is formed on the limit frame, and the positioning protrusion is formed on both sides of the first clip, and the positioning protrusion corresponds to the positioning groove. When the first clip and the first card hole are engaged to install the limit frame on the support frame, the positioning protrusion is embedded in the positioning groove.

[0017] In some embodiments, a bottom shell is further included, on which a second clip hole is provided; the mounting structure includes a second clip provided on the support frame and extending toward the bottom shell, and the second clip cooperates with the second clip hole to fix the support frame on the bottom shell.

[0018] In some embodiments, a guide groove is provided on the bottom shell, and the mounting structure further includes a first guide rib provided on the support frame and extending toward the bottom shell. When the support frame is installed on the bottom shell, the first guide rib is inserted into the guide groove.

[0019] In some embodiments, a mounting groove is further provided on the bottom shell, and the bearing mounting seat is formed by protruding from the side of the support frame. The bearing mounting seat is adapted to the mounting groove. When the support frame is installed on the bottom shell, the bearing mounting seat is partially located in the mounting groove.

[0020] In some embodiments, the mounting seat is provided with a water retaining rib and a guide rib, the water retaining rib is located above the guide rib, the water retaining rib and the guide rib both protrude from the end face of the mounting seat, and the protruding length of the water retaining rib is greater than the protruding length of the guide rib, and one or more drainage holes are provided on the guide rib, wherein when the support frame is installed on the bottom shell, the guide rib is guided and cooperated with the mounting groove and is located on the inner side of the mounting groove, and the water retaining rib is located on the outer side of the mounting groove.

[0021] In some embodiments, it also includes: a first water guide rib and a third water guide rib arranged on the side of the support frame, the first water guide rib and the third water retaining rib are arranged in the front and rear directions of the support frame, the front end of the first water guide rib is connected to the water retaining rib, the rear end of the first water guide rib extends rearward, the rear end of the third water guide rib is connected to the water retaining rib, and the front end of the third water guide rib extends forward, wherein the third water guide rib is higher than the first water guide rib and the rear end of the third water guide rib is lower than the front end of the third water guide rib, and the rear end of the first water guide rib is lower than the front end of the first water guide rib.

[0022] In some embodiments, it also includes: a second water guide rib formed on the first side of the support frame, the second water guide rib is arched, covering the top of the shaft hole, and is used to guide condensed water dripping from the elbow of the heat exchanger above the second water guide rib.

[0023] In some embodiments, the top surface of the support frame includes a first top surface, a second top surface bent and extended toward the front side of the first top surface, and a third top surface bent and extended toward the rear side of the first top surface, and the support structure is formed on the first top surface, the second top surface and the third top surface, respectively; the limiting frame includes a first limiting frame, a second limiting frame bent and extended toward the front side of the first limiting frame, and a third limiting frame bent and extended toward the rear side of the first limiting frame, the first limiting frame is detachably connected to the first top surface, the second limiting frame is detachably connected to the second top surface, and the third limiting frame is detachably connected to the third top surface.

[0024] The present invention also provides an air conditioner indoor unit, comprising: a bracket assembly as described in any of the above embodiments, and a heat exchanger, wherein the heat exchanger is supported by a supporting structure on the top surface of the support frame and fixed between the support frame and the limiting frame.

[0025] In some embodiments, it also includes: a fan blade assembly, including a fan blade shaft and a cross-flow fan blade arranged on the fan blade shaft, one end of the fan blade shaft is installed in the shaft hole on the first side of the support frame, and the other end is connected to the motor output shaft.

[0026] The present invention also provides an air-conditioning indoor unit, comprising: a bottom shell; a heat exchanger, arranged in the bottom shell; a bracket assembly, comprising a support frame and a limit frame, the support frame is clamped and fixed to the bottom shell, the top surface of the support frame supports the heat exchanger elbow, the support frame is formed with a rotating shaft hole, the limit frame is detachably mounted on the support frame, and is used to cooperate with the support frame to fix the heat exchanger elbow between the support frame and the limit frame; a fan blade assembly, arranged in the bottom shell, comprising a fan blade shaft and a cross-flow fan blade arranged on the fan blade shaft, one end of the fan blade shaft is mounted on the rotating shaft hole, and the other end is connected to the motor output shaft.

[0027] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0028] The support frame of the present invention is provided with a support structure on the top surface, and cooperates with a limit frame detachably mounted on the support frame, so that the heat exchanger elbow is more convenient to assemble and is easy to install automatically.

[0029] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0031] Figure 1 is a structural diagram of an air-conditioning indoor unit according to an exemplary embodiment of the present invention;

[0032] Figure 2 is a schematic diagram showing the internal structure of an air-conditioning indoor unit according to an exemplary embodiment of the present invention;

[0033] Figure 3 According to an exemplary embodiment of the present invention Figure 2 Schematic diagram of the internal structure of the indoor unit of the air conditioner;

[0034] Figure 4 is a schematic diagram of a support frame structure according to an exemplary embodiment of the present invention;

[0035] Figure 5 is a schematic structural diagram of a support frame from another perspective according to an exemplary embodiment of the present invention;

[0036] Figure 6 is a schematic diagram of a limiting frame structure according to an exemplary embodiment of the present invention;

[0037] Figure 7 1 is a cross-sectional schematic diagram of a limiting structure of a limiting frame clamping a heat exchanger elbow according to an exemplary embodiment of the present invention;

[0038] Figure 8 is a schematic cross-sectional view of a clamping and matching structure of a limiting frame and a supporting frame according to an exemplary embodiment of the present invention;

[0039] Figure 9 is a schematic cross-sectional view of the matching structure between the support frame and the bottom shell according to an exemplary embodiment of the present invention;

[0040] Figure 10 is a side view of the internal structure of an air conditioner indoor unit according to an exemplary embodiment of the present invention;

[0041] Figure 11 According to an exemplary embodiment of the present invention Figure 10 Middle AA cross-sectional view;

[0042] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0043] In the description of the present invention, it should be noted that the terms "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "in contact," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0045] The present invention provides a bracket assembly for supporting and securing a heat exchanger, which is easy to assemble and facilitates automated installation. The heat exchanger can be used in heat exchange devices such as air conditioner indoor units and dehumidifiers. A heat exchanger is sometimes referred to as an evaporator or a condenser, depending on the form of the refrigerant in the heat exchange tubes. The following description uses the support assembly as an example of a heat exchanger in an air conditioner indoor unit, but the present invention is not limited to this embodiment.

[0046] like Figures 1-11 As shown, the support assembly 100 of the present invention may include a support frame 10 and a limiting frame 20. The support frame 10 and the limiting frame 20 are separate structures, and the two cooperate to fix the elbow on one side of the heat exchanger.

[0047] The top surface of the support frame 10 is formed with a support structure 11, which is used to place the heat exchanger elbow 220 ( Figure 3 as shown), to provide support for the heat exchanger elbow 220.

[0048] The limiting frame 20 is detachably mounted on the supporting frame 10 , and is used to cooperate with the supporting frame 10 to fix the heat exchanger elbow 220 between the supporting frame 10 and the limiting frame 20 .

[0049] For example, Figure 1-Figure 3 As shown, the air conditioner indoor unit 200 includes a bottom housing 210 and a front panel, which together form a storage space with an air outlet. A heat exchanger and a fan assembly are located within the storage space. The heat exchanger can, for example, consist of multiple copper tubes connected in series with fins and can have a multi-bend structure. In one example, the heat exchanger can have a three-bend structure, but the present invention is not limited to this.

[0050] The structure of the support frame 10 can be adapted to the structure of the heat exchanger. For example, it can also be a multi-bend structure. Specifically, Figure 4 and Figure 5 As shown, the support frame 10 may include three top surfaces to accommodate a heat exchanger with a three-bend structure, namely a first top surface 103, a second top surface 104, and a third top surface 105. It is worth noting that the top surface of the support frame 10 can face in various directions and can be a horizontal surface or an inclined surface.

[0051] A support structure 11 for supporting the heat exchanger elbow 220 may be formed on each top surface. It is understandable that the number of the support structures 11 matches the number of the heat exchanger elbows 220. Preferably, the support structures 11 correspond to the heat exchanger elbows 220 one by one.

[0052] Similar, such as Figure 6 As shown, the overall structure of the limit frame 20 is compatible with the support frame 10, and can also be divided into three sections of limit frames, namely the first limit frame 201, the second limit frame 202 and the third limit frame 203, wherein the first limit frame 201 can be integrally formed with the third limit frame 203, and the second limit frame 202 is separated from the first limit frame 201 and the second limit frame 202, so as to facilitate the coordinated installation of the three-bend support frame 10.

[0053] Since the support structure 11 is provided on the top surface of the support frame 10, when the heat exchanger is installed on the support frame 10, the heat exchanger elbow 220 can be placed radially on the support structure 11, wherein the length direction of the heat exchanger copper tube is the axial direction, which is also the left-right direction of the air conditioner indoor unit, and the radial direction refers to the radial direction of the heat exchanger copper tube, that is, the direction perpendicular to the axial direction of the heat exchanger copper tube, or it can be a direction roughly perpendicular to the top surface of the support frame 10. The heat exchanger elbow 220 can be placed vertically on the support structure 11. Then, after the support structure 11 is placed, the limiting frame 20 is installed on the support frame 10, for example, it can be installed on the top surface of the support frame 10, so that the limiting frame 20 cooperates with the support frame 10 to fix the heat exchanger elbow 220 between the support frame 10 and the limiting frame 20, thereby forming a limit for the heat exchanger elbow 220.

[0054] A supporting structure is set on the top surface of the above-mentioned support frame 10, and the heat exchanger elbow 220 can be placed vertically on the supporting structure 11. The limiting frame 20 cooperates with the support frame 10 to fix the heat exchanger elbow 220, making the heat exchanger elbow 220 more convenient to assemble, easy and reliable to install, and easy to install automatically.

[0055] In some embodiments, as Figure 4 As shown, the support structure 11 includes multiple grooves formed on the top surface of the support frame 10. These grooves correspond one-to-one with the heat exchanger elbows, forming a confined space to constrain the heat exchanger elbows. The grooves are open and extend through the first side 101 and the second side 102 of the support frame 10. The bottom wall of the groove provides radial support for the heat exchanger elbow 220, while the front and rear side walls limit the heat exchanger elbow 220 in the front-to-back direction. The grooves create a confined space for the heat exchanger elbow 220, facilitating installation and positioning of the heat exchanger elbow 220 and enabling automated installation.

[0056] In some embodiments, multiple limiting structures are formed on the limiting frame 20 or the support frame 10. Preferably, the multiple limiting structures correspond one-to-one to the heat exchanger elbow 220, and the limiting structures are used to limit the heat exchanger elbow. The limiting structures can limit the heat exchanger elbow 220 by clamping the heat exchanger elbow 220. Clamping refers to the limiting structure limiting the displacement of the heat exchanger elbow 220. The limiting structure can be clamped to maintain the limit, or it can be maintained in a non-clamped state, that is, the limiting structure maintains the limit in a manner that generates almost no force on the heat exchanger elbow 220.

[0057] When the limiting frame 20 is installed on the supporting frame 10, the limiting frame 20 is fixed together with the supporting frame 10, and at the same time, the limiting structure clamps the corresponding heat exchanger elbow 220 to limit the heat exchanger elbow 220 and improve the installation stability of the heat exchanger elbow 220.

[0058] Further, such as Figure 6 and Figure 7 As shown, each limiting structure includes a first limiting portion 211, a second limiting portion 212, and a third limiting portion 213. The third limiting portion 213 extends toward the top surface of the support frame 10. When the heat exchanger elbow 220 is installed on the support frame 10, the third limiting portion 213 is located inside the heat exchanger elbow 220 to limit the axial displacement a of the heat exchanger elbow. The inside of the heat exchanger elbow 220 refers to the inside of the U-shaped elbow bend in the axial direction of the heat exchange tube. The axial direction a of the heat exchanger elbow refers to the length direction of the heat exchanger copper tube as described above, and also refers to the left-right direction of the air conditioner indoor unit.

[0059] The first limiting portion 211 can be located above the second limiting portion 212 and extend in a direction perpendicular to the third limiting portion 213. The first limiting portion 211, the second limiting portion 212 and the third limiting portion 213 form a limiting structure opening toward the outside of the heat exchanger elbow 220, which is clamped between the first limiting portion 211 and the second limiting portion 212 to limit the radial r displacement of the heat exchanger elbow.

[0060] Further, if Figure 7 As shown, the second limiting portion 212 is closer to the top surface of the support frame 10 than the first limiting portion 211, and the extension length of the second limiting portion 212 is shorter than the length of the first limiting portion 211. For example, the first limiting portion 211 is at the top and the second limiting portion 212 is at the bottom. During the installation of the limiting frame 20 onto the support frame 10, the second limiting portion 212 first contacts the heat exchanger elbow 220 and deforms. After the first limiting portion 211 is installed in place, the second limiting portion 212 recovers its deformation and clamps the heat exchanger elbow 220 within the limiting space formed between the first limiting portion 211 and the second limiting portion 212, thereby limiting the radial displacement r of the heat exchanger elbow 220.

[0061] In another example, the first limiting portion 211 extends perpendicular to the direction of the third limiting portion 213, and the second limiting portion 212 extends toward the top surface of the support frame 10. For example, the second limiting portion 212 is parallel to the third limiting portion 213, so that the first limiting portion 211, the second limiting portion 212 and the third limiting portion 213 form a limiting structure with an opening toward the top surface of the support frame 10, wherein when the heat exchanger elbow 220 is installed on the support frame 10, the third limiting portion 213 is located on the inner side of the heat exchanger elbow 220, and the second limiting portion 212 is located on the outer side of the heat exchanger elbow 220, the axial a displacement of the heat exchanger elbow 220 is limited by the second limiting portion 212 and the third limiting portion 213, and the radial r displacement of the heat exchanger elbow 220 is limited by the first limiting portion 211 and the top surface support structure of the support frame 10.

[0062] In some embodiments, a first snap-fit ​​structure is formed on the top surface of the support frame 10, and a second snap-fit ​​structure is formed on the retaining frame 20. The first snap-fit ​​structure and the second snap-fit ​​structure engage and engage to attach the retaining frame 20 to the support frame 10, achieving a detachable connection. While the first snap-fit ​​structure and the second snap-fit ​​structure engage and engage to attach the retaining frame to the support frame, the retaining structure clamps and limits the position of the heat exchanger elbow.

[0063] In one example, if Figure 4 and Figure 6 As shown, a plurality of protrusions 18 are formed on the top surface of the support frame 10, with grooves 11 formed between the protrusions 18. A first engaging structure includes engaging holes 12 provided on the protrusions 18, and a second engaging structure includes a buckle 22 provided on the retaining frame 20. The buckle 22 engages with the engaging holes 12 to mount the retaining frame 20 to the support frame 10. While the buckle 22 engages with the engaging holes 12, the first and second retaining portions 211, 212 of the retaining structure clamp the heat exchanger elbow between the first and second retaining portions 211, 212.

[0064] In another example, the first snap-fit ​​structure includes a snap-fit ​​provided on the protrusion 18, and the second snap-fit ​​structure includes a snap-fit ​​hole provided on the limiting frame 20, and the snap-fit ​​and the snap-fit ​​hole are snap-fitted to mount the limiting frame 20 on the support frame 10. In other words, the positions of the snap-fit ​​22 and the snap-fit ​​hole on the support frame 10 and the limiting frame 20 are interchangeable.

[0065] Furthermore, a positioning groove 151 is provided on the protrusion 18, and a clamping hole is provided on the side wall of the positioning groove 151; a positioning protrusion 23 protruding toward the support frame 10 is formed on the limit frame 20, and the positioning protrusion 23 is formed on both sides of the buckle 22. The positioning protrusion 23 corresponds to the positioning groove 151 and is used to provide positioning and limiting functions during the clamping process of the buckle 22 and the clamping hole 12, so that the limit frame 20 and the support frame 10 are stably fixed to improve the stability of the fixed heat exchanger elbow.

[0066] In some embodiments, the support frame 10 is provided with a shaft hole 16 ( Figure 5 As shown), the shaft hole 16 is used to support the fan shaft. According to the strength requirements of the support frame 10 material, a rubber ring or lubricating oil can be added between the fan shaft and the shaft hole 16 to play a role in shock absorption and lubrication.

[0067] In the prior art, the bearing mount (bearing rubber mount) is first mounted on the bottom housing of the air conditioner indoor unit, and then the support frame 10 is fixed to the bearing mount with screws. This leads to complex installation, poor assembly precision, and low efficiency. The present invention provides a shaft hole 16 on the support frame 10 to support the fan shaft, eliminating the bearing mount in the prior art, simplifying the installation process, facilitating installation, and improving installation efficiency.

[0068] In one example, the bearing mounting seat can also be retained. For example, the support frame 10 includes a bearing mounting seat 132. The bearing mounting seat 132 is integrally formed with the support frame 10, and the shaft hole 16 is formed in the bearing mounting seat 132. The provision of the bearing mounting seat 132 integrally formed with the support frame 10 simplifies the installation process while also improving the support stability of the fan shaft. In some preferred embodiments, such as Figure 3 and Figure 4 As shown, the bottom shell 210 is further provided with a mounting groove 2101. A mounting seat 132 protrudes from the second side surface of the support frame 10. The position of the mounting seat 132 corresponds to the position of the shaft hole 16 and is adapted to the mounting groove 2101. When the support frame 10 is installed on the bottom shell 210, the mounting seat 132 is partially located within the mounting groove 2101. The mounting seat 132 adapted to the bottom shell mounting groove 2101 does not require changes to the structure of the bearing rubber seat groove (i.e., the mounting groove) in the bottom shell of the air conditioner indoor unit, nor does it require changes to the bottom shell mold, and still serves a positioning function.

[0069] In some embodiments, the bottom of the support frame 10 is formed with a mounting structure 13 ( Figure 4 As shown), the mounting structure 13 is used to install and fix the support frame 10. For example, the support frame 10 is installed on the bottom shell 210 of the air conditioner indoor unit through the mounting structure 13.

[0070] For example, Figure 4 and Figure 9 As shown, a second latch hole 250 is provided on the bottom shell 210; the mounting structure includes a second latch 131 provided on the support frame 10 and extending toward the bottom shell 210. The second latch 131 cooperates with the second latch hole 250 to secure the support frame 10 to the bottom shell 210. The support frame 10 for supporting the heat exchanger elbow of the present invention is directly snap-fitted and installed on the bottom shell 210. Compared with the prior art method of fixing to the bearing seat with screws and then indirectly fixing to the bottom shell through the bearing seat, this simplifies the installation process, facilitates installation, and improves installation efficiency.

[0071] In some embodiments, as Figure 3 and Figure 5 As shown, a guide groove is provided on the bottom shell 210, and the installation structure also includes a first guide rib 136 provided on the support frame 10 and extending toward the bottom shell 210. When the support frame 10 is installed on the bottom shell 210 of the air-conditioning indoor unit, the first guide rib 136 is inserted into the guide groove, thereby playing a role in positioning and guiding, facilitating automated installation.

[0072] In some examples, a water retaining rib 133 and a guide rib 134 are formed on the top of the mounting seat 132. The water retaining rib 133 can be, for example, arched, and the guide rib 134 can be, for example, bowl-shaped. Both the arched water retaining rib 133 and the bowl-shaped guide rib 134 protrude from the end surface of the mounting seat 132, and the protruding length of the arched water retaining rib 133 is greater than the length of the bowl-shaped guide rib 134. One or more drainage holes are provided on the bowl-shaped guide rib 134. When the support frame 10 is mounted on the bottom shell 210, the bowl-shaped guide rib 134 guides and cooperates with the mounting groove 2101 and is located inside the mounting groove 2101, while the arched water retaining rib is located outside the mounting groove 2101. The arched water retaining rib 133 guides condensed water dripping from the heat exchanger elbow, preventing the condensed water from flowing into the shaft hole 16.

[0073] In some embodiments, the bracket assembly also includes a first water guide rib 14 formed on the second side 102 of the support frame 10, which is used to guide condensed water dripping from the elbow of the heat exchanger. The first end 141 (front end) of the first water guide rib 14 is connected to the arched water retaining rib 133, and the second end 143 (rear end) extends in a direction away from the arched water retaining rib 133. The first water guide rib 14 is inclined relative to the horizontal plane, wherein the second end 142 is lower than the first end 141, and the first side of the first water guide rib close to the second side 102 is higher than the second side 144 away from the second side.

[0074] Furthermore, the bracket assembly also includes a third water guide rib 17 formed on the second side surface 102 of the support frame 10, and the third water guide rib 17 is higher than the first water guide rib 14 to form a stepped structure. The first water guide rib 14 and the third water guide rib 17 are arranged in the front and rear directions of the support frame 10, the front end of the first water guide rib 14 is connected to the water retaining rib 133, and the rear end of the first water guide rib 14 extends rearward, the rear end of the third water guide rib 17 is connected to the water retaining rib 133, and the front end of the third water guide rib 17 extends forward, wherein the third water guide rib 17 is higher than the first water guide rib 14 and the rear end of the third water guide rib 17 is lower than the front end of the third water guide rib 17, and the rear end of the first water guide rib 14 is lower than the front end of the first water guide rib 14.

[0075] The condensed water dripping from the elbow of the heat exchanger above the third water guide rib 17 is guided by the third water guide rib 17 and flows to the arched water retaining rib 133, and then flows to the first water guide rib 14 after being guided by the arched water retaining rib 133, and then flows to the water receiving tray after being guided by the first water guide rib 14 and discharged from the drain outlet 240.

[0076] In some examples, such as Figure 5 As shown, it also includes a second water guide rib 15 formed on the first side surface 101 of the support frame 10. The second water guide rib 15 is arched and covers the top of the shaft hole 16 to guide the condensed water dripping from the elbow of the heat exchanger.

[0077] The present invention also provides an air conditioner indoor unit 200, such as Figure 1-Figure 3 As shown, it includes: the bracket assembly 100 as described in any of the above embodiments, and a heat exchanger 220. The heat exchanger 220 is placed on the supporting structure on the top surface of the support frame 10 and is clamped and fixed between the support frame 10 and the limiting frame 20.

[0078] In some embodiments, the air conditioning indoor unit 200 also includes a fan blade assembly 230, including a fan blade shaft and a cross-flow fan blade arranged on the fan blade shaft. One end of the fan blade shaft is installed in the shaft hole 16 on the first side of the support frame 10, and the other end is connected to the motor output shaft.

[0079] The present invention also provides an air-conditioning indoor unit, comprising: a bottom shell 210; a heat exchanger, arranged in the bottom shell 210; a bracket assembly including a support frame 10 and a limit frame 20, the support frame 10 is clamped and fixed to the bottom shell 210, the top surface of the support frame 10 supports the heat exchanger elbow 220, the support frame 10 is formed with a rotating shaft hole 16, the limit frame 20 is detachably mounted on the support frame 10, and is used to cooperate with the support frame 10 to fix the heat exchanger elbow 220 between the support frame 10 and the limit frame 20; a fan blade assembly, arranged in the bottom shell, including a fan blade shaft and a cross-flow fan blade arranged on the fan blade shaft, one end of the fan blade shaft is installed in the rotating shaft hole, and the other end is connected to the motor output shaft.

[0080] It is further understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0081] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not indicate a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of this disclosure.

[0082] It is further understood that although operations are described in a particular order in the accompanying drawings in the embodiments of the present disclosure, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the operations shown be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0083] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0084] It should be understood that the present disclosure is not limited to the precise structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. A bracket assembly, characterized in that: include: A support frame, wherein a support structure is formed on the top surface of the support frame, and the support structure is used to support the elbow of the heat exchanger; A limiting frame, which is detachably mounted on the supporting frame and is used to cooperate with the supporting frame to fix the heat exchanger elbow between the supporting frame and the limiting frame; The support structure includes a plurality of grooves formed on the top surface of the support frame, the plurality of grooves corresponding to the heat exchanger elbows one by one, and the grooves forming a limiting space for limiting the heat exchanger elbows; A plurality of limiting structures are formed on the limiting frame or the supporting frame, and the limiting structures are used to limit the elbow of the heat exchanger; Each of the limiting structures includes a third limiting portion extending toward the top surface of the support frame, Wherein, when the limiting frame is installed on the supporting frame, the third limiting portion is located inside the heat exchanger elbow to limit the axial displacement of the heat exchanger elbow; The limiting structure further includes a first limiting portion and a second limiting portion, wherein the first limiting portion, the second limiting portion and the third limiting portion form an opening, and the opening faces the outside of the heat exchanger elbow. When the limiting frame is installed on the supporting frame, the heat exchanger elbow is clamped and limited between the first limiting portion and the second limiting portion; A first clamping structure is formed on the top surface of the support frame; The limiting frame is formed with a second clamping structure, wherein the first clamping structure and the second clamping structure are clamped and matched to install the limiting frame on the supporting frame.

2. The bracket assembly according to claim 1, wherein: The first limiting portion and the second limiting portion both extend in a direction perpendicular to the third limiting portion.

3. The bracket assembly according to claim 1, wherein: A plurality of protrusions are formed on the top surface of the support frame, and the grooves are formed between the plurality of protrusions. The first clamping structure includes a first clamping hole or a first clamping buckle provided on the protrusion, The second clamping structure includes a first clamping buckle or a first clamping hole provided on the limiting frame, and the first clamping buckle is clamped and matched with the first clamping hole to install the limiting frame on the supporting frame.

4. The bracket assembly according to claim 3, characterized in that A positioning groove is provided on the protrusion, and the first clamping hole is provided on a side wall of the positioning groove; The limiting frame is formed with a positioning protrusion protruding toward the supporting frame, the positioning protrusion is formed on both sides of the first buckle, and the positioning protrusion corresponds to the positioning groove. When the first buckle is engaged with the first clamping hole to install the limiting frame on the supporting frame, the positioning protrusion is embedded in the positioning groove.

5. The bracket assembly according to claim 1, wherein: The top surface of the support frame includes a first top surface, a second top surface bent and extended toward the front side of the first top surface, and a third top surface bent and extended toward the rear side of the first top surface, and the support structure is formed on the first top surface, the second top surface and the third top surface respectively; The limiting frame includes a first limiting frame, a second limiting frame bent and extended toward the front side of the first limiting frame, and a third limiting frame bent and extended toward the rear side of the first limiting frame. The first limiting frame is detachably connected to the first top surface, the second limiting frame is detachably connected to the second top surface, and the third limiting frame is detachably connected to the third top surface.

6. The bracket assembly according to any one of claims 1 to 5, characterized in that: Also included is a bottom shell and a mounting structure; The bottom shell is provided with a second clamping hole; The mounting structure includes a second buckle provided on the support frame and extending toward the bottom shell, and the second buckle cooperates with the second buckle hole to fix the support frame on the bottom shell.

7. The bracket assembly according to claim 6, wherein: The bottom shell is provided with a guide groove. The mounting structure further includes a first guide rib provided on the support frame and extending toward the bottom shell. When the support frame is mounted on the bottom shell, the first guide rib is inserted into the guide groove.

8. The bracket assembly according to claim 7, wherein: The bottom shell is also provided with a mounting groove. The support frame includes a bearing mounting seat, which is protruded from the second side surface of the support frame and is adapted to the mounting groove. When the support frame is installed on the bottom shell, the bearing mounting seat is partially located in the mounting groove.

9. The bracket assembly according to claim 8, characterized in that The bearing mounting seat and the support frame are integrally formed.

10. The bracket assembly according to claim 9, wherein: The support frame is provided with a shaft hole, and the shaft hole is used to support the fan blade shaft; The rotating shaft hole is formed in the bearing mounting seat.

11. An air conditioner indoor unit, characterized in that: include: The bracket assembly according to any one of claims 1 to 10, A heat exchanger, wherein an elbow on one side of the heat exchanger is supported on the supporting structure on the top surface of the supporting frame and is fixed between the supporting frame and the limiting frame.

12. An air conditioner indoor unit, characterized in that: include: The bracket assembly according to any one of claims 1 to 9, A heat exchanger, wherein an elbow on one side of the heat exchanger is supported by the support structure on the top surface of the support frame and is fixed between the support frame and the limiting frame; The fan blade assembly comprises a fan blade shaft and a cross-flow fan blade arranged on the fan blade shaft. One end of the fan blade shaft is rotatably connected to the shaft hole on the support frame, and the other end is connected to the motor output shaft.

13. An air conditioner indoor unit, characterized in that: include: The bracket assembly according to claim 10, A heat exchanger, wherein an elbow on one side of the heat exchanger is supported by the support structure on the top surface of the support frame and is fixed between the support frame and the limiting frame; The fan blade assembly comprises a fan blade shaft and a cross-flow fan blade arranged on the fan blade shaft. One end of the fan blade shaft is rotatably connected to the shaft hole, and the other end is connected to the motor output shaft.

14. An air conditioner indoor unit, characterized in that: include: bottom shell; a heat exchanger, disposed in the bottom shell; The bracket assembly according to any one of claims 1 to 5, wherein the support frame of the bracket assembly is fixed to the bottom shell by snapping or plugging, the top surface of the support frame supports the heat exchanger elbow, and the limit frame is detachably mounted on the support frame and is used to cooperate with the support frame to fix the heat exchanger elbow between the support frame and the limit frame; A fan blade assembly is disposed in the bottom shell and includes a fan blade shaft and a crossflow fan blade disposed on the fan blade shaft; The support frame is provided with a shaft hole, and the shaft hole is used to support the fan blade shaft; One end of the fan blade shaft is rotatably connected to the shaft hole, and the other end is connected to the motor output shaft.

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