An air conditioner indoor unit

Abstract

The utility model provides an air conditioner indoor unit. The air conditioner indoor unit comprises a support frame, a heat exchanger and a support rod. The heat exchanger is arranged on the support frame; the length of the support rod is adjustable, the first end of the support rod is installed on the front part of the heat exchanger, the support rod has a first state and a second state; in the first state, the support rod is contracted or folded; in the second state, the support rod is unfolded and the second end of the support rod is located on the support frame, the second end of the support rod is on the downside of the first end of the support rod, so that the front part of the heat exchanger has a space with the support frame. The utility model solves the technical problem that the heat exchanger is lifted unbalancedly, operation is difficult and there is a safety risk when a single person maintains the motor assembly for the existing air conditioner indoor unit.

Description

Technical Field

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

[0002] Existing air conditioner indoor units typically include a support frame, a heat exchanger, and a motor assembly, with both the heat exchanger and motor assembly mounted on the support frame. The motor assembly is usually located below and outside the heat exchanger. When disassembling or maintaining the motor assembly, it is usually necessary to first lift the heat exchanger from its installation position to provide operating space. However, due to the large size and weight of the heat exchanger, and the fact that the motor assembly is located at one end, when operating by a single person, lifting one end of the heat exchanger to create operating space will cause the other end to fall downwards due to gravity, resulting in an unstable state for the entire heat exchanger. This makes it difficult for the operator to simultaneously stabilize the heat exchanger and perform disassembly and assembly of the motor assembly, making single-person operation extremely difficult and posing a safety hazard. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide an air conditioner indoor unit that overcomes or at least partially solves the above problems, and can solve the technical problems of heat exchanger lifting imbalance, difficult operation and safety risks when a single person maintains the motor assembly in existing air conditioner indoor units.

[0004] Specifically, this utility model provides an indoor unit for an air conditioner, comprising:

[0005] Support frame;

[0006] The heat exchanger is mounted on the support frame;

[0007] A support rod, the length of which is adjustable, is provided. The first end of the support rod is mounted on the front of the heat exchanger. The support rod has a first state and a second state. In the first state, the support rod is retracted or folded. In the second state, the support rod is extended and the second end of the support rod is located on the support frame. The second end of the support rod is located below the first end of the support rod, so that there is a gap between the lower front end of the heat exchanger and the support frame.

[0008] Optionally, the first end of the support rod is rotatably mounted to the front of the heat exchanger via a pivot, so that in the first state, the remaining portion of the support rod is not lower than the first end of the support rod.

[0009] Optionally, the first end of the support rod is rotatably mounted to the lower end of the front of the heat exchanger via a pivot.

[0010] Optionally, the heat exchanger includes a first tube sheet, and the first end of the support rod is rotatably mounted on the outside of the first tube sheet via a pivot.

[0011] Optionally, the support rod includes at least two foldable support sections; or

[0012] The support rod is a telescopic support rod that can extend and retract along its own length.

[0013] Optionally, the telescopic support rod is a hydraulic rod; or

[0014] The telescopic support rod includes a sleeve and a threaded rod threadedly connected to the sleeve. The threaded rod can move axially along the sleeve to adjust the length of the support rod.

[0015] Optionally, in the first state, the support rod is magnetically connected to the first tube sheet; or

[0016] In the first state, the support rod is engaged with the first tube sheet.

[0017] Optionally, the heat exchanger further includes heat exchange tubes, with corresponding ends of the heat exchange tubes located outside the first tube sheet to form a receiving space; in the first state, the support rod is located within the receiving space;

[0018] The heat exchanger further includes a heat exchange section, with the first tube sheet located at the end of the heat exchange section. The heat exchange section includes a first heat exchange segment, a second heat exchange segment, and a third heat exchange segment. The first heat exchange segment and the second heat exchange segment are arranged at an angle. The first heat exchange segment is located in front of the second heat exchange segment, and the third heat exchange segment is located below the first heat exchange segment. The rotating shaft is close to the lower part of the third heat exchange segment. In the first state, the support rod is inclined from bottom to top towards the second heat exchange segment.

[0019] The support frame is provided with ribs, and in the second state, the second end of the support rod abuts against the rear side of the rib.

[0020] Optionally, the rear end of the heat exchanger is rotatably mounted on the support frame about its longitudinal axis.

[0021] Optionally, the heat exchanger further includes a second tube sheet, which is disposed opposite to the first tube sheet;

[0022] The indoor unit of the air conditioner also includes:

[0023] A motor assembly having a motor and a motor housing; the motor assembly is disposed on the outside of the second tube sheet;

[0024] A cross-flow fan is disposed between the heat exchanger and the support frame, and the cross-flow fan is connected to the output shaft of the motor;

[0025] The motor box includes:

[0026] The motor mount has an insertion port for inserting the motor, with the insertion port facing forward;

[0027] The motor cover is detachably installed at the insertion port of the motor base. The lower part of the motor cover is movably connected to the lower part of the motor base via a connecting structure, so as to allow the motor cover to rotate relative to the motor base about a longitudinally extending axis.

[0028] In the indoor unit of this air conditioner, an adjustable support rod is added to the front of the heat exchanger. During normal operation, the support rod retracts or folds, placing it in its first state. When motor maintenance is required, the operator can first change the support rod from the first state to the second state, unfolding it and bringing its second end into contact with the bottom of the support frame, thus firmly supporting one end of the heat exchanger in a raised position. At this point, only one hand needs to gently lift the other end of the heat exchanger, while the other hand can directly perform the disassembly and assembly of the motor assembly, significantly improving the efficiency and convenience of single-person maintenance. On one hand, this support rod effectively overcomes the imbalance problem caused by the other end sagging when one end of the heat exchanger is lifted, and eliminates the safety hazard of the heat exchanger accidentally slipping. On the other hand, the support rod undertakes the main support task, eliminating the need for the operator to strain both hands simultaneously to support the heat exchanger.

[0029] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0030] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0031] Figure 1 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model;

[0032] Figure 2 This is a schematic partial structural diagram of the interior of an air conditioner indoor unit according to an embodiment of the present utility model;

[0033] Figure 3 This is a schematic partial structural diagram of the interior of an air conditioner indoor unit according to an embodiment of the present utility model;

[0034] Figure 4 This is a schematic partial structural diagram of the interior of an air conditioner indoor unit according to an embodiment of the present utility model;

[0035] Figure 5 This is a schematic partial structural diagram of the interior of an air conditioner indoor unit according to an embodiment of the present utility model;

[0036] Figure 6 This is a schematic structural diagram of the motor assembly in the indoor unit of an air conditioner according to an embodiment of the present invention. Detailed Implementation

[0037] The following reference Figures 1 to 6 This description pertains to the indoor unit of an air conditioner according to an embodiment of the present invention. In this description, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0038] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being 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," or "below" of the second feature can mean the first feature is 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.

[0040] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Figure 1 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention, as shown below. Figure 1 As shown, and refer to Figures 2 to 6 This utility model provides an indoor unit for an air conditioner. The indoor unit includes a support frame 100, a heat exchanger 200, and a support rod 300. The heat exchanger 200 is mounted on the support frame 100. The length of the support rod 300 is adjustable. The first end 301 of the support rod 300 is mounted on the front of the heat exchanger 200. The support rod 300 has a first state and a second state. In the first state, the support rod 300 is retracted or folded. In the second state, the support rod 300 is extended, and the second end 302 of the support rod 300 is located on the support frame 100, with the second end 302 positioned below the first end 301, creating a gap between the lower front end of the heat exchanger 200 and the support frame 100.

[0042] Specifically, the indoor unit of the air conditioner also includes a housing 400 and a motor assembly 500. The housing 400 includes a front housing 430 and a rear housing 440. The support frame 100, motor assembly 500, heat exchanger 200, and support rod 300 are all disposed within the rear housing 440. The front housing 430 is detachably disposed at the front opening of the rear housing 440. The front housing 430 is disposed at the front end of the support frame 100. The support rod 300 can be installed on the outside or front side of the heat exchanger 200. For example, the support rod 300 is disposed on the outside of the heat exchanger 200 at the end away from the motor assembly 500, or the support rod 300 is disposed at the middle position of the front side of the heat exchanger 200 or at the end away from the motor assembly 500.

[0043] When maintenance of the motor assembly 500 is required, first remove the front housing 430 from the rear housing 440, fully exposing the opening on the front side of the rear housing 440. The operator then reaches into the rear housing 440 through the front opening. Next, the operator manually lifts one end of the heat exchanger 200. Simultaneously or after lifting the heat exchanger 200, the operator locates the support rod 300 mounted on the front of the heat exchanger 200. The support rod 300 is unfolded, and its second end 302 is firmly abutted against and supported at the bottom of the support frame 100, forming a rigid support. At this point, the lower front end of the heat exchanger 200 is held in a lifted position by the support rod 300, thus creating a stable and reliable space between the lower front end of the heat exchanger 200 and the support frame 100 below. The operator then lifts the other end of the heat exchanger 200 with one hand and removes the motor assembly 500 with the other.

[0044] This embodiment adds an adjustable-length support rod 300. When the indoor unit of the air conditioner is working normally, the support rod 300 is retracted or folded, placing it in its first state. When motor maintenance is required, the operator can first change the support rod 300 from the first state to the second state, unfolding the second support rod 300 and bringing its second end 302 into contact with the bottom of the support frame 100, thus firmly supporting one end of the heat exchanger 200 in the raised state. At this time, only one hand needs to be used to gently lift the other end of the heat exchanger 200, while the other hand can directly perform the disassembly and assembly of the motor assembly 500, significantly improving the efficiency and convenience of single-person maintenance. On the one hand, the support rod 300 effectively overcomes the imbalance problem of the other end sagging when one end of the heat exchanger 200 is lifted, and eliminates the safety hazard of the heat exchanger 200 accidentally slipping. On the other hand, the support rod 300 undertakes the main support task, eliminating the need for the operator to simultaneously exert force to lift the heat exchanger with both hands. Furthermore, the support rod 300 has a simple, reliable structure and is inexpensive.

[0045] In some optional embodiments of this utility model, the first end 301 of the support rod 300 is fixedly installed at the front of the heat exchanger 200.

[0046] like Figure 3 and Figure 4 As shown, in some optional embodiments of this utility model, the first end 301 of the support rod 300 is rotatably mounted to the front of the heat exchanger 200 via a rotating shaft 310, so that in the first state, the remaining part of the support rod 300 is not lower than the first end 301. During the transition from the first state to the second state, the remaining part of the support rod 300 is kept not higher than the first end 301, that is, the support rod 300 is rotated downward about the rotating shaft 310.

[0047] In this embodiment, when the indoor unit of the air conditioner is working normally, the support rod 300 is retracted or folded and in a stowed position; when the motor needs maintenance, the support rod 300 is rotated downwards and unfolded. Compared with the previous embodiment, this embodiment further avoids interference with other parts when the support rod 300 is in the stowed position.

[0048] In some optional embodiments of this utility model, the first end 301 of the support rod 300 is rotatably mounted on the middle of the front part of the heat exchanger 200 via a rotating shaft 310.

[0049] like Figure 3 and Figure 4 As shown, in some optional embodiments of this utility model, the first end 301 of the support rod 300 is rotatably mounted on the lower end of the front part of the heat exchanger 200 via a rotating shaft 310.

[0050] Compared with the embodiment where the rotating shaft 310 is located in the middle of the heat exchanger 200, this embodiment places the rotating shaft 310 at the lower end of the heat exchanger 200. While supporting the heat exchanger 200 to the same height, the total length of the support rod 300 in the unfolded state can be reduced, thereby saving material usage and reducing production costs.

[0051] like Figure 3 and Figure 4 As shown, in some optional embodiments of this utility model, the heat exchanger 200 includes a first tube sheet 210, and the first end 301 of the support rod 300 is rotatably mounted on the outside of the first tube sheet 210 via a rotating shaft 310.

[0052] Specifically, the heat exchanger 200 includes heat exchange tubes, and a first tube sheet 210 is used to mount the heat exchange tubes. The first tube sheet 210 is located at the end of the heat exchanger 200 away from the motor assembly 500. A support rod 300 is rotatably mounted on the outside of the first tube sheet 210.

[0053] In this embodiment, by directly integrating the mounting point of the support rod 300's shaft 310 onto the outside of the first tube sheet 210 of the heat exchanger 200, this not only fully utilizes the strength advantage of the first tube sheet 210 as the inherent rigid support structure of the heat exchanger 200, but also ensures that when the support rod 300 is in the second state, the lifting force it applies to the heat exchanger 200 can be efficiently and stably transmitted to the entire heat exchanger 200 body through the first tube sheet 210, significantly enhancing the overall rigidity and reliability of the support structure. Simultaneously, the external mounting method completely avoids the support rod 300 and its shaft 310 intruding into the interior of the heat exchanger 200 or interfering with the heat exchange tube arrangement, ensuring that the heat exchange performance of the heat exchanger 200 is not affected in any way.

[0054] In some optional embodiments of this utility model, the heat exchanger 200 includes a first tube sheet 210, and the first end 301 of the support rod 300 is rotatably mounted on the lower end of the front part of the outer side of the first tube sheet 210 via a rotating shaft 310. Specifically, a mounting seat is provided on the outer side of the first tube sheet 210, and the rotating shaft 310 is mounted on the mounting seat.

[0055] In some optional embodiments of this utility model, the support rod 300 is a telescopic support rod that can extend and retract along its own length.

[0056] In this embodiment, the telescopic support rod can be a hydraulic rod. Alternatively, the telescopic support rod can include a sleeve and a threaded rod threadedly connected within the sleeve, the threaded rod being able to move axially along the sleeve to adjust the length of the support rod. Specifically, the sleeve has internal threads, and the total length of the support rod can be adjusted manually by rotating the threaded rod.

[0057] In some optional embodiments of this utility model, the support rod 300 includes at least two foldable support sections 320. Specifically, the support rod 300 may include two, three, or four support sections 320. Specifically, adjacent support sections are rotatably connected, and the axis of rotation is parallel to the axis of rotation 310.

[0058] When the first end 301 of the support rod 300 is fixedly installed on the heat exchanger 200, when it is necessary to support one end of the heat exchanger 200, the heat exchanger 200 is lifted up, the support rod 300 is then extended downwards, and the second end of the support rod 300 contacts the bottom of the support frame 100.

[0059] When the first end 301 of the support rod 300 is rotatably mounted on the heat exchanger 200, when it is necessary to support one end of the heat exchanger 200, first rotate the support rod 300 downward, then lift the heat exchanger 200, then unfold the support rod 300, and make the second end of the support rod 300 contact the bottom of the support frame 100.

[0060] In this embodiment, the foldable support rod is easier to unfold and fold than the telescopic support rod, making it easier to operate.

[0061] In some optional embodiments of this utility model, in the first state, the support rod 300 is magnetically connected to the first tube sheet 210.

[0062] In this embodiment, the support rod 300 is reliably fixed in the storage position through magnetic connection, which effectively prevents it from accidentally rotating and loosening due to vibration or movement, and significantly improves the overall stability of the machine and the convenience of maintenance.

[0063] In some optional embodiments of this utility model, the indoor unit of the air conditioner further includes a magnetic attraction device, which is disposed between the support rod 300 and the first tube plate 210; the magnetic attraction device includes a first attraction member and a second attraction member, the first attraction member is disposed on the side of the support rod 300, and the second attraction member is disposed on the side of the first tube plate 210, one of the first attraction member and the second attraction member is a magnet, and the other is a magnet or a ferromagnetic material.

[0064] In some optional embodiments of this utility model, in the first state, the support rod 300 is engaged with the first tube sheet 210.

[0065] This embodiment uses a snap-fit ​​mechanism to fix the support rod 300 in the storage position. Compared with the magnetic attraction solution, it has higher vibration resistance and extreme temperature adaptability, and there is no need to worry about magnetic force attenuation. It provides a more stable mechanical fixation guarantee in long-term use.

[0066] In some optional embodiments of this utility model, the support rod 300 and the first tube plate 210 are provided with a snap-fit ​​hole on one side and a first buckle on the other side. The snap-fit ​​hole and the first buckle engage in a snap-fit ​​cooperation.

[0067] In some optional embodiments of this utility model, the first tube plate 210 is provided with a second buckle, the second buckle includes two oppositely arranged holding parts; in the first state, the support rod 300 is engaged in the second buckle.

[0068] In some optional embodiments of the present invention, the heat exchanger 200 further includes a heat exchange tube, the corresponding end of which is located outside the first tube sheet 210 to form a receiving space 250; in the first state, the support rod 300 is located within the receiving space 250.

[0069] This embodiment utilizes the naturally formed receiving space 250 on the outer side of the heat exchange tube end to house the support rod 300, achieving zero additional space occupation. This allows the support rod 300 to be completely embedded within the outline of the heat exchanger 200 body in the housed state, further avoiding the risk of interference with other components.

[0070] In some optional embodiments of this utility model, in the first state, the support rod 300 is vertically arranged.

[0071] like Figure 2 and Figure 3As shown, in some optional embodiments of this utility model, the heat exchanger 200 further includes a heat exchange section 240, with the first tube sheet 210 located at the end of the heat exchange section 240. The heat exchange section 240 includes a first heat exchange segment 241, a second heat exchange segment 242, and a third heat exchange segment 243. The first heat exchange segment 241 and the second heat exchange segment 242 are arranged at an angle, with the first heat exchange segment 241 located in front of the second heat exchange segment 242, and the third heat exchange segment 243 located below the first heat exchange segment 241. In the first state, the support rod 300 is inclined from bottom to top towards the second heat exchange segment 242.

[0072] This embodiment utilizes the three-dimensional structure of the three-section bent heat exchanger 200, with the support rod 300 tilted when in the retracted state, significantly extending its effective working length. When the support rod 300 is in the second state, the lower front end of the heat exchanger 200 can achieve a higher elevation. This creates more ample operating space for the maintenance of the motor assembly 500.

[0073] like Figure 3 As shown, in some optional embodiments of this utility model, a rib plate 101 is provided on the support frame 100. In the second state, the second end 302 of the support rod 300 abuts against the rear side of the rib plate 101. Specifically, the rib plate 101 is located at the bottom of the support frame 100.

[0074] In this embodiment, the rear side of the rib plate 101 forms a stop for the support rod 300. When the support rod 300 is in the second state and bears the gravitational load of the heat exchanger 200, it completely blocks the forward sliding displacement tendency, avoiding support failure and the risk of the heat exchanger 200 falling due to sliding, and greatly improving the structural safety and operational reliability of maintenance operations. In addition, the rib plate 101 also has the function of increasing the structural stability of the support frame 100.

[0075] In some optional embodiments of this utility model, the support frame 100 is provided with a plurality of ribs 101, which are spaced apart along the front-back direction.

[0076] In this embodiment, multiple support points are formed by multiple ribs 101 arranged at intervals along the front and rear direction of the support frame 100, so that operators can flexibly select the abutment position of the support rod 300 according to actual maintenance needs.

[0077] like Figure 2 , Figure 5 and Figure 6 As shown, in some optional embodiments of this utility model, the heat exchanger 200 further includes a second tube sheet 220, which is disposed opposite to the first tube sheet 210. Specifically, the first tube sheet 210 and the second tube sheet 220 are located on the left and right sides of the heat exchanger 200.

[0078] The indoor unit of the air conditioner also includes a motor assembly 500 and a cross-flow fan. The motor assembly 500 has a motor 510 and a motor housing 520; the motor assembly 500 is located on the outside of the second tube sheet 220. The cross-flow fan is located between the heat exchanger 200 and the support frame 100, and the cross-flow fan is connected to the output shaft of the motor 510.

[0079] Specifically, the indoor unit of the air conditioner has an air inlet 401, an air outlet 402, and an air duct, which connects the air inlet 401 and the air outlet 402. The motor 510 drives the cross-flow fan to rotate. Under the action of the cross-flow fan, indoor air enters the air duct inside the indoor unit through the air inlet 401 and exchanges heat with the heat exchanger 200 in the air duct to form heat-exchanged air. The heat-exchanged air is blown into the indoor space through the air outlet 402.

[0080] In some optional embodiments of this utility model, the rear end of the heat exchanger 200 is rotatably mounted on the support frame 100 about a longitudinal axis. In this embodiment, the rear end of the heat exchanger 200 is rotatably mounted on the support frame 100, which facilitates lifting the front end of the heat exchanger 200.

[0081] In some optional embodiments of this utility model, the support frame 100 has two upward-facing grooves; the outer sides of the first tube plate 210 and the second tube plate 220 are provided with retaining shafts, each retaining shaft being inserted into a groove.

[0082] In this embodiment, a first retaining shaft is provided on the side of the first tube sheet 210 opposite to the second tube sheet 220, and a second retaining shaft is provided on the side of the second tube sheet 220 opposite to the first tube sheet 210. The two grooves are a first groove and a second groove, respectively. The first retaining shaft engages with the first groove, and the second retaining shaft engages with the second groove. Since the openings of the grooves face upwards, the retaining shafts can be installed into the corresponding grooves from top to bottom.

[0083] In this embodiment, each tube sheet is snapped into a corresponding groove in the support via a retaining pin. Since the heat exchanger 200 can rotate around the axis of the retaining pin, it facilitates the overall disassembly and installation of the heat exchanger 200.

[0084] In some optional embodiments of this utility model, the indoor unit of the air conditioner is a wall-mounted air conditioner indoor unit.

[0085] like Figure 1 As shown, in some optional embodiments of this utility model, the indoor unit of the air conditioner is an embedded indoor unit of the air conditioner.

[0086] like Figure 1 As shown, in some optional embodiments of this utility model, the front shell 430 is provided with an air inlet 401 and an air outlet 402, with the air inlet 401 located above the air outlet 402.

[0087] In some optional embodiments of this utility model, a guide plate 410 is rotatably installed at the air outlet 402 to adjust the opening and closing of the air outlet 402 and the air outlet angle. A sealing plate 420 is rotatably installed at the air inlet 401 for opening or closing the air inlet 401.

[0088] In some optional embodiments of this utility model, the motor housing 520 includes a motor base 521 and a motor cover 522. The motor base 521 has an insertion port for inserting a motor 510, with the insertion port facing forward; the motor cover 522 is detachably mounted at the insertion port of the motor base 521, and the lower part of the motor cover 522 is movably connected to the lower part of the motor base 521 by a connecting structure 523, so as to at least allow the motor cover 522 to rotate relative to the motor base 521 about a longitudinally extending axis.

[0089] In this embodiment, since the lower part of the motor cover 522 is movably connected to the lower part of the motor base 521 through the connecting structure 523, and the insertion port of the motor base 521 faces forward, the motor cover 522 can rotate around the longitudinal axis to achieve "door-type opening and closing", which significantly reduces the difficulty of assembly and disassembly.

[0090] In addition, the motor cover 522 remains connected to the motor base 521 during the rotation and opening process, avoiding the risk of detachment caused by the complete separation of the motor cover 522 and the motor base 521, thus balancing maintenance efficiency and operational safety.

[0091] In some optional embodiments of this utility model, the connecting structure 523 is a connecting piece, which is a flexible piece or an elastic piece. Specifically, a sheet-like connecting member is made of a flexible material (such as silicone or plastic) or an elastic metal sheet, and its two ends are respectively fixed to the lower part of the motor base 521 and the motor cover 522.

[0092] In some optional embodiments of this utility model, the connecting structure 523 includes multiple connecting strips, one end of each connecting strip being connected to the motor base 521 and the other end being connected to the motor cover 522. Specifically, the lower part of the motor base 521 and the lower part of the motor cover 522 are movably connected together by multiple connecting strips. These connecting strips are made of flexible or elastic materials. Multiple independent connecting strips (such as nylon strips, metal springs, or plastic strips) are arranged in parallel, with both ends of each connecting strip fixed to the motor base 521 and the motor cover 522, respectively. In this embodiment, when a single connecting strip breaks, the remaining connecting strips can still maintain structural integrity, preventing the motor cover 522 from suddenly detaching. The multiple connecting strips evenly distribute the tensile and torsional forces during opening and closing, reducing stress concentration at individual connection points.

[0093] In some optional embodiments of this utility model, the connecting structure 523 is a connecting wall with a thickness of 0.2mm to 1mm. Specifically, the thickness of the connecting wall is any one of 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, and 1mm. This connecting wall is similar to the connection structure between the box body and the lid of a cardboard box in the prior art. Due to the thinness of the connecting wall, the lower part of the motor base 521 and the lower part of the motor cover 522 can be movably connected together through the connecting wall. In this embodiment, using a connecting wall as the connecting structure 523 allows the motor base 521, the motor cover 522, and the connecting structure 523 to be integrally formed, thereby reducing the overall processing and manufacturing difficulty of the motor box 520 and reducing production costs. The thin-walled structure reduces weight while ensuring strength, which is in line with the trend of lightweight air conditioners.

[0094] In some optional embodiments of this utility model, the distance between the part of the connecting structure 523 connected to the motor base 521 and the part connected to the motor cover 522 is within 5mm.

[0095] Specifically, the distance between the part of the connecting structure 523 that is connected to the motor base 521 and the part that is connected to the motor cover 522 can be any one of 1mm, 2mm, 3mm, 4mm, or 5mm.

[0096] In this embodiment, the short-pitch connection significantly shortens the lever arm when the motor cover 522 rotates open and closes, making the relative movement trajectory of the motor cover 522 and the motor base 521 more controllable. This allows for quick and automatic alignment with the fixed point when closing, reducing the number of manual adjustments. Simultaneously, the compact connection spacing effectively suppresses minor displacement of the motor cover 522 under vibration or external force, ensuring a long-term tight fit between the two and preventing abnormal noises or loosening caused by misalignment. This further enhances the structural stability and service life of the motor housing 520.

[0097] Therefore, by controlling the distance between the connection structure 523 at the connection point between the motor base 521 and the motor cover 522 to within 5mm, this embodiment significantly improves the alignment accuracy and assembly efficiency of the motor base 521 and the motor cover 522.

[0098] like Figure 6 As shown, in some optional embodiments of this utility model, the motor base 521, the motor cover 522, and the connecting structure 523 are integrally formed from the same material.

[0099] This embodiment uses the same material to integrally mold the motor base 521, motor cover 522 and connecting structure 523, eliminating the risk of thermal expansion differences and stress concentration at the interface of dissimilar materials. This significantly improves the overall structural strength and stability of the motor box 520, while simplifying the overall manufacturing process of the motor box 520 and reducing assembly errors.

[0100] In some optional embodiments of this utility model, the motor base 521, the motor cover 522, and the connecting structure 523 are made of polypropylene.

[0101] like Figure 6 As shown, in some optional embodiments of this utility model, the upper part of the motor base 521 is snapped into the upper part of the motor cover 522. In this embodiment, the upper part of the motor base 521 and the upper part of the motor cover 522 are connected together by a snap-fit ​​structure 524. This snap-fit ​​structure 524 can be locked without tools, significantly shortening assembly time. In addition, the snap-fit ​​design supports non-destructive disassembly and assembly, facilitating later maintenance or replacement of the motor 510, and improving the user experience.

[0102] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: Support frame; The heat exchanger is mounted on the support frame; A support rod, the length of which is adjustable, is provided. The first end of the support rod is mounted on the front of the heat exchanger. The support rod has a first state and a second state. In the first state, the support rod is retracted or folded. In the second state, the support rod is extended and the second end of the support rod is located on the support frame. The second end of the support rod is located below the first end of the support rod, so that there is a gap between the lower front end of the heat exchanger and the support frame.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The first end of the support rod is rotatably mounted to the front of the heat exchanger via a pivot, so that in the first state, the remaining part of the support rod is not lower than the first end of the support rod.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The first end of the support rod is rotatably mounted on the lower front of the heat exchanger via a pivot.

4. The indoor unit of the air conditioner according to claim 2, characterized in that, The heat exchanger includes a first tube sheet, and the first end of the support rod is rotatably mounted on the outside of the first tube sheet via a rotating shaft.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The support rod includes at least two foldable support sections; or The support rod is a telescopic support rod that can extend and retract along its own length.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The telescopic support rod is a hydraulic rod; or The telescopic support rod includes a sleeve and a threaded rod threadedly connected to the sleeve. The threaded rod can move axially along the sleeve to adjust the length of the support rod.

7. The indoor unit of the air conditioner according to claim 4, characterized in that, In the first state, the support rod is magnetically connected to the first tube sheet; or In the first state, the support rod is engaged with the first tube sheet.

8. The indoor unit of the air conditioner according to claim 4, characterized in that, The heat exchanger also includes heat exchange tubes, with corresponding ends of the heat exchange tubes located outside the first tube sheet to form a receiving space; in the first state, the support rod is located within the receiving space; The heat exchanger further includes a heat exchange section, with the first tube sheet located at the end of the heat exchange section. The heat exchange section includes a first heat exchange segment, a second heat exchange segment, and a third heat exchange segment. The first heat exchange segment and the second heat exchange segment are arranged at an angle. The first heat exchange segment is located in front of the second heat exchange segment, and the third heat exchange segment is located below the first heat exchange segment. The rotating shaft is close to the lower part of the third heat exchange segment. In the first state, the support rod is inclined from bottom to top towards the second heat exchange segment. The support frame is provided with ribs, and in the second state, the second end of the support rod abuts against the rear side of the rib.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, The rear end of the heat exchanger is rotatably mounted on the support frame around its longitudinal axis.

10. The indoor unit of the air conditioner according to claim 4, characterized in that, The heat exchanger also includes a second tube sheet, which is disposed opposite to the first tube sheet; The indoor unit of the air conditioner also includes: A motor assembly having a motor and a motor housing; the motor assembly is disposed on the outside of the second tube sheet; A cross-flow fan is disposed between the heat exchanger and the support frame, and the cross-flow fan is connected to the output shaft of the motor; The motor box includes: The motor mount has an insertion port for inserting the motor, with the insertion port facing forward; The motor cover is detachably installed at the insertion port of the motor base. The lower part of the motor cover is movably connected to the lower part of the motor base via a connecting structure, so as to allow the motor cover to rotate relative to the motor base about a longitudinally extending axis.

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