Air duct component for air conditioner indoor unit and air conditioner indoor unit

Abstract

The utility model provides an air duct component for an air conditioner indoor unit and the air conditioner indoor unit. The air duct component comprises a first end plate and an electric heater. The first end plate forms a first end face of one end of the air channel of the air conditioner indoor unit in the length direction. A mounting hole is formed in the first end plate. An open groove or a protruding rib is arranged on the hole wall of one side of the installation hole. The electric heater is in a long strip shape, the two ends of the electric heater are a first end and a second end respectively, the second end penetrates through the mounting hole from the side, away from the air channel, of the first end plate and then is connected to the other end, away from the first end plate, of the air channel, and the first end is inserted into the mounting hole. And one side of the side wall of the second end part is provided with a mounting bulge corresponding to the opening groove or is provided with a mounting groove corresponding to the convex rib. According to the air duct component, the fool-proof effect is achieved, the situation that the electric heater is installed upside down and needs to be reworked is avoided, the installation efficiency of the electric heater is improved, then manpower and operation time are saved, and the production cost of the air conditioner is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an air duct component for an indoor unit of an air conditioner and the indoor unit of the air conditioner. Background Art

[0002] With the improvement of living standards, air conditioners have been widely used in family life. The indoor unit of the air conditioner usually installs an electric heater in the air duct for auxiliary heating. In the prior art, the electric heater is installed inside the air duct of the air conditioner through the mounting holes to achieve heat exchange of the air flow in the air duct. However, during the installation of the electric heater in the air duct, it is easy for the electric heater to be installed upside down, requiring the operator to rework and reinstall, which reduces the installation efficiency of the electric heater. Utility Model Content

[0003] In view of the above-mentioned problems, the utility model is proposed to provide an air duct component and an air conditioner indoor unit for an air conditioner that overcome the above-mentioned problems or at least partially solve the above-mentioned problems. It can solve the problem that during the installation of the electric heater in the air duct, the electric heater is easily installed upside down, which requires the operator to rework and reinstall it, thereby reducing the installation efficiency of the electric heater.

[0004] Specifically, the utility model provides an air duct component for an indoor unit of an air conditioner, comprising:

[0005] The first end plate forms a first end surface of one end of the air duct of the indoor unit of the air conditioner in the length direction. The first end plate is formed with a mounting hole. An opening groove or a protruding rib is provided on one side of the hole wall of the mounting hole.

[0006] The electric heater is in the shape of a long strip, and the two ends of the electric heater are respectively a first end and a second end, the second end is configured to pass through the mounting hole from the side of the first end plate away from the air duct and then be connected to the other end of the air duct away from the first end plate, and the first end is inserted into the mounting hole. One side of the side wall of the second end is provided with a mounting protrusion corresponding to the opening groove, or a mounting groove corresponding to the protruding rib.

[0007] Optionally, the opening groove is provided on one side wall of the mounting hole, and the mounting protrusion corresponding to the opening groove is provided on one side of the side wall of the second end portion.

[0008] The air duct component further includes a second end plate, which forms a second end surface of an end of the air duct of the air conditioner indoor unit in the length direction away from the first end plate. A mounting blind hole is formed on the second end plate. A hole wall on one side of the mounting blind hole is provided with a positioning groove opening toward the mounting blind hole. The second end portion is connected to the mounting blind hole, and the mounting protrusion matches the positioning groove.

[0009] Optionally, a positioning protrusion that cooperates with the opening groove is provided on one side of the side wall of the first end portion, and the positioning protrusion cooperates with the opening groove.

[0010] Optionally, the mounting hole is rectangular as a whole.

[0011] An indicating protrusion is provided on the side wall of the first end portion adjacent to the side wall where the positioning protrusion is located.

[0012] Optionally, the mounting hole is rectangular as a whole, and the opening groove is arranged on a long side of the mounting hole.

[0013] The opening groove is located at the center of the mounting hole in the length direction.

[0014] Optionally, the first end plate is further formed with mounting posts located at the periphery of the mounting hole. The number of the mounting posts is two and they are arranged oppositely at two ends of the mounting hole in the length direction.

[0015] The electric heater comprises a mounting cover plate, the mounting cover plate is arranged on a side of the mounting hole away from the air duct, and a connecting hole corresponding to the mounting column is arranged on the mounting cover plate.

[0016] The mounting post is located at the center of the mounting hole in a width direction.

[0017] Optionally, the mounting cover is provided with a limiting convex rib located at the periphery of the mounting hole. The limiting convex rib is located on a side of the mounting cover close to the first end plate, so that the outer side wall of the mounting column blocks the inner side wall of the limiting convex rib in a direction perpendicular to the insertion direction of the electric heater.

[0018] Optionally, the air duct component further includes an air duct frame, wherein the air duct frame defines the air duct. The first end plate is fixedly connected to one end of the air duct frame.

[0019] A plurality of wire clips are integrally formed on the air duct frame and the first end plate, and the plurality of wire clips are arranged at intervals on a side of the first end plate away from the air duct and a side of the air duct frame away from the air duct.

[0020] Optionally, the air duct skeleton forms two air ducts, and the two air ducts are arranged in parallel and at intervals. One mounting hole and one electric heater are arranged in each air duct.

[0021] The wire clip includes a first wire clip and a plurality of second wire clips. The first wire clip is arranged on the first end plate and is located on the same side of the two mounting holes. The plurality of second wire clips are arranged on the air duct frame along the length direction of the air duct. The plurality of second wire clips are on the same side of the two air ducts and are on the same side of the air duct as the first wire clip.

[0022] The utility model also provides an air conditioner indoor unit, which includes the above-mentioned air duct component and cross-flow wind wheels corresponding to the air ducts one by one, and each of the cross-flow wind wheels is rotatably arranged in the corresponding air duct along its length direction.

[0023] In the air duct component of the utility model, when installing the electric heater, the second end of the electric heater is inserted into the mounting hole through the mounting hole away from the side of the air duct of the indoor unit of the air conditioner, and it is necessary to ensure that the mounting protrusion cooperates with the open groove before the electric heater can be inserted into the mounting hole along the length direction of the air duct to achieve fool-proofing, avoid the operator installing the electric heater upside down when installing the electric heater, and need to rework, thereby improving the installation efficiency of the electric heater, thereby saving manpower and operation time, and reducing the production cost of the air conditioner.

[0024] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0026] Figure 1 is a schematic structural diagram of an air duct component according to an embodiment of the utility model;

[0027] Figure 2 is a schematic structural diagram of an air duct component according to an embodiment of the utility model;

[0028] Figure 3 is a schematic partial structural diagram of an electric heater in an air duct component according to an embodiment of the utility model;

[0029] Figure 4 It is a schematic partial structural diagram of an electric heater in an air duct component according to an embodiment of the utility model.

[0030] List of figure marks: 100, first end plate; 110, mounting hole; 120, open slot; 130, mounting column; 200, second end plate; 210, mounting blind hole; 220, positioning slot; 300, electric heater; 310, first end; 311, positioning protrusion; 320, second end; 321, mounting protrusion; 340, mounting cover; 341, connecting hole; 342, indicating protrusion; 350, limiting rib; 400, air duct frame; 500, wire clamp. DETAILED DESCRIPTION

[0031] Refer to the following Figures 1 to 4 To describe the air duct component for an air conditioner indoor unit and the air conditioner indoor unit of an embodiment of the utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0032] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0033] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0035] Figure 1 is a schematic structural diagram of an air duct component according to an embodiment of the utility model, such as Figure 1 As shown, and refer to Figures 2 to 4 The embodiment of the utility model provides an air duct component for an indoor unit of an air conditioner, including a first end plate 100 and an electric heater 300 .

[0036] The first end plate 100 forms a first end surface at one end of the air duct of the indoor unit of the air conditioner in the longitudinal direction. A mounting hole 110 is formed on the first end plate 100. An opening groove 120 is provided on one side of the hole wall of the mounting hole 110.

[0037] The electric heater 300 is in the shape of a long strip, and the two ends of the electric heater 300 are respectively a first end 310 and a second end 320. The second end 320 is configured to pass through the mounting hole 110 from the side of the first end plate 100 away from the air duct and then be connected to the other end of the air duct away from the first end plate 100. The first end 310 is inserted into the mounting hole 110. A mounting protrusion 321 corresponding to the opening groove 120 is provided on one side of the side wall of the second end 320.

[0038] The electric heater 300 is inserted into the air duct through the mounting hole 110 on the first end plate 100. The electric heater 300 is usually provided with a high-power electric heating wire or electric belt. When the air conditioner is heating or dehumidifying, the electric heating wire or electric belt is energized to release heat and heat the airflow in the air duct.

[0039] When the indoor unit of the air conditioner is a vertical cabinet, the length direction of the air duct may be a vertical direction, and the electric heater 300 is installed along the vertical direction. At this time, the first end plate 100 may be located at the upper side of the air duct, and the bottom surface of the first end plate 100 forms the upper end surface of the air duct. The first end plate 100 may also be located at the lower side of the air duct, and the top surface of the first end plate 100 forms the lower end surface of the air duct.

[0040] When the indoor unit of the air conditioner is a wall-mounted unit, the length direction of the air duct can be horizontal, and the electric heater 300 is installed in the horizontal direction. In this case, the first end plate 100 can be located on the left side of the air duct, and the bottom surface of the first end plate 100 forms the left end surface of the air duct. The first end plate 100 can also be located on the right side of the air duct, and the top surface of the first end plate 100 forms the right end surface of the air duct.

[0041] In this embodiment, the indoor unit of the air conditioner is a vertical cabinet, and the first end plate 100 is located on the upper side of the air duct. The mounting hole 110 is arranged horizontally and passes through the first end plate 100 in the vertical direction. When installing the electric heater 300, the second end 320 of the electric heater 300 can be inserted into the mounting hole 110 from the upper side of the mounting hole 110. The mounting protrusion 321 cooperates with the opening groove 120 to achieve foolproofing, avoid the electric heater 300 from being installed upside down, and thus avoid the operator from reworking and reinstalling, thereby improving the installation efficiency of the electric heater 300.

[0042] Alternatively, in some alternative embodiments of the air duct component of the utility model, a convex rib is provided on one side of the hole wall of the mounting hole 110, and a mounting groove corresponding to the convex rib is provided on one side of the side wall of the second end 320. When the electric heater 300 is installed, the convex rib and the mounting groove are matched and connected.

[0043] In some embodiments of the air duct component of the present invention, preferably, an opening groove 120 is provided on one side wall of the mounting hole 110 , and a mounting protrusion 321 corresponding to the opening groove 120 is provided on one side of the side wall of the second end portion 320 .

[0044] Further, the air duct component also includes a second end plate 200, and the second end plate 200 forms a second end surface of an end of the air duct of the air conditioner indoor unit in the length direction away from the first end plate 100. A mounting blind hole 210 is formed on the second end plate 200. A hole wall on one side of the mounting blind hole 210 is provided with a positioning groove 220 with an opening facing the mounting blind hole 210. The second end portion 320 is inserted into the mounting blind hole 210, and the mounting protrusion 321 cooperates with the positioning groove 220.

[0045] In this embodiment, after the electric heater 300 is installed, the second end 320 of the electric heater 300 is connected to the second end plate 200, and the mounting protrusion 321 of the second end 320 is matched with the positioning groove 220 to guide the electric heater 300 so that the electric heater 300 is installed in the correct installation position, simplifying the installation operation. On the other hand, the positioning groove 220 forms a limit and stop for the mounting protrusion 321, thereby preventing the electric heater 300 from shaking.

[0046] In some embodiments of the air duct component of the present invention, Figure 2 and Figure 3As shown, a positioning protrusion 311 that matches with the opening groove 120 is provided on one side of the side wall of the first end portion 310 , and the positioning protrusion 311 matches with the opening groove 120 .

[0047] In this embodiment, after the electric heater 300 is installed, the opening groove 120 serves to limit and stop the positioning protrusion 311, thereby further preventing the electric heater 300 from shaking.

[0048] In some embodiments of the air duct component of the present utility model, the mounting hole 110 is rectangular in shape as a whole. An indicating protrusion 342 is provided on the side wall of the first end portion 310 adjacent to the side wall where the positioning protrusion 311 is located.

[0049] In some embodiments of the air duct component of the present invention, Figure 2 As shown, the mounting hole 110 is rectangular in shape as a whole, and the opening slot 120 is disposed on a long side of the mounting hole 110 .

[0050] Preferably, the opening slot 120 is located at the center of the mounting hole 110 in the length direction.

[0051] In this embodiment, if Figure 3 As shown, the cross section of the electric heater 300 perpendicular to the length direction is rectangular, and the two long sides of the cross section are in contact with the long sides of the corresponding mounting hole 110. The opening groove 120 is arranged on one long side of the mounting hole 110, and the mounting protrusion 321 is also arranged on one side of the electric heater 300 corresponding to the mounting hole 110.

[0052] Further, in some embodiments of the air duct component of the present invention, such as Figure 3 As shown, the indicating protrusion 342 is disposed toward one short side of the mounting hole 110 and is spaced apart from the short side of the mounting hole 110 .

[0053] In this embodiment, the indicating protrusion 342 is spaced apart from the mounting hole 110 to avoid interference between the indicating protrusion 342 and the mounting hole 110 during the installation of the electric heater 300. The indicating protrusion 342 is arranged at the first end 310 of the electric heater 300. During the installation of the electric heater 300 in the air duct, the first end 310 and the second end 320 of the electric heater 300 can be distinguished according to the indicating protrusion 342, thereby avoiding the two ends of the electric heater 300 being installed reversely.

[0054] In some embodiments of the air duct component of the present invention, Figure 2 As shown, the first end plate 100 is further formed with mounting posts 130 located at the periphery of the mounting hole 110. There are two mounting posts 130, which are oppositely disposed at two ends of the mounting hole 110 in the length direction.

[0055] like Figure 4As shown, the electric heater 300 includes a mounting cover plate 340, which is disposed on a side of the mounting hole 110 away from the air duct. The mounting cover plate 340 is provided with a connection hole 341 corresponding to the mounting column 130, and a limiting rib 350 located at the periphery of the mounting hole 110. The limiting rib 350 is located on a side of the mounting cover plate 340 close to the first end plate 100, so that the outer side wall of the mounting column 130 blocks the inner side wall of the limiting rib 350 in a direction perpendicular to the insertion direction of the electric heater 300.

[0056] In this embodiment, taking the installation cover 340 being located at the upper part of the electric heater 300 and the connection hole 341 penetrating the installation cover 340 in the vertical direction as an example, the limiting rib 350 is located at the periphery of the bottom surface of the connection hole 341 and protrudes downward.

[0057] When installing the electric heater 300, the electric heater 300 can be inserted into the mounting hole 110 from the upper side of the mounting hole 110. During the vertical downward insertion of the electric heater 300, the distance between the mounting cover plate 340 and the top of the mounting hole 110 is gradually reduced until the inner wall of the limiting rib 350 contacts the outer wall of the mounting column 130, and the outer wall of the mounting column 130 limits and guides the inner wall of the limiting rib 350, so that the threaded holes in the connection hole 341 and the mounting column 130 can be aligned. The electric heater 300 continues to move downward until the bottom surface of the connection hole 341 contacts the top surface of the mounting column 130, at which time, the inner wall of the limiting rib 350 is in contact with the outer wall of the mounting column 130. Finally, fasteners are connected to the connection hole 341 and the mounting column 130.

[0058] It should be understood that the inner side wall of the limiting rib 350 and the outer side wall of the mounting column 130 can be fitted or gap-fitted. The limiting rib 350 can be columnar, wall-shaped, etc., as long as it is located at the periphery of the bottom surface of the connecting hole 341 and its inner side wall is matched with the outer side wall of the mounting column 130.

[0059] When assembling the electric heater 300, the air duct component of the indoor unit of the air conditioner of the utility model automatically aligns the connecting hole 341 with the mounting column 130 through the guiding cooperation between the inner side wall of the limiting rib 350 and the outer side wall of the mounting column 130, thereby improving the assembly efficiency of the electric heater 300. Furthermore, the screws will not be misaligned, thereby improving the assembly quality of the electric heater 300.

[0060] On the other hand, after the electric heater 300 is installed, the outer wall of the mounting column 130 limits the inner wall of the limiting rib 350, thereby preventing the electric heater 300 from moving in a direction perpendicular to its insertion direction, thereby preventing the electric heater 300 from shaking during transportation and use, thereby achieving the purpose of preventing the electric heater 300 from shaking and being damaged.

[0061] Preferably, the mounting post 130 is located at the center of the mounting hole 110 in the width direction.

[0062] In some embodiments of the air duct component of the present invention, Figure 1 As shown, the air duct component further includes an air duct frame 400, and the air duct frame 400 defines an air duct. The first end plate 100 is fixedly connected to one end of the air duct frame 400. A plurality of wire clips 500 are provided on the air duct frame 400 and the first end plate 100, and the plurality of wire clips 500 are spaced apart on a side of the first end plate 100 away from the air duct, and a side of the air duct frame 400 away from the air duct.

[0063] In this embodiment, a wire clip 500 is provided on the air duct frame 400, so that the wire management of the air conditioner indoor unit is simple and easy to operate, and the production efficiency of the air duct components is improved. The wire clip 500 does not block the air duct, and at the same time, the wires fixed to the wire clip 500 do not block the air duct, thereby improving the air supply efficiency of the air duct.

[0064] Furthermore, the wire clip 500 and the air duct frame 400 are an integrally formed structure.

[0065] Alternatively, the wire clip 500 is installed at the back of the air duct frame 400 .

[0066] Furthermore, in some embodiments of the air duct component of the present invention, there are multiple air ducts.

[0067] Preferably, the air duct skeleton 400 forms two air ducts, and the two air ducts are arranged in parallel and at intervals. A mounting hole 110 and an electric heater 300 are arranged in each air duct. The wire clamp 500 includes a first wire clamp and a plurality of second wire clamps. The first wire clamp is arranged on the first end plate 100 and is located on the same side of the two mounting holes 110. Preferably, the first wire clamp and the two mounting holes 110 are on the same straight line. The plurality of second wire clamps are arranged on the air duct skeleton 400 along the length direction of the air duct. The plurality of second wire clamps are on the same side of the two air ducts and are on the same side of the air duct as the first wire clamp.

[0068] In this embodiment, an electric heater 300 and a wind wheel are provided in each air duct, and the wire clamps 500 are located on one side of the multiple air ducts so that multiple wires share a group of wire clamps 500, thereby reducing the number of wire clamps 500 and reducing the difficulty of manufacturing the air duct components. The wires are also arranged on one side of the multiple air ducts, thereby improving the neatness of the air duct components.

[0069] In some embodiments of the air duct component of the present invention, Figure 1 As shown, the air duct component further includes an air duct frame 400, which forms a plurality of air ducts sequentially arranged at intervals along the radial direction of the air duct, and a mounting hole 110 and an electric heater 300 are arranged in each air duct.

[0070] In this embodiment, the air duct skeleton 400 forms two air ducts spaced apart, and a wind wheel, such as a crossflow wind wheel, can be provided in each air duct to improve the temperature adjustment capability of the air conditioner. An electric heater 300 inserted into the corresponding mounting hole 110 is provided in each air duct to perform heat exchange on the airflow in the respective air duct.

[0071] The present invention also provides an air conditioner indoor unit. In some embodiments of the air conditioner indoor unit of the present invention, the air conditioner indoor unit includes an air duct component as in any of the above embodiments and a crossflow fan wheel corresponding to the air duct, each crossflow fan wheel is rotatably arranged in the corresponding air duct along its length direction.

[0072] In this embodiment, the indoor unit of the air conditioner can be a vertical cabinet unit, and the crossflow impeller is vertically arranged in the air duct. The indoor unit of the air conditioner can also be a wall-mounted unit, and the crossflow impeller is horizontally arranged in the air duct.

[0073] An air duct may be provided in the indoor unit of the air conditioner, and an electric heater 300 may be provided in the air duct. Two or more air ducts may also be provided in the indoor unit of the air conditioner, and an electric heater 300 may be provided in each air duct.

[0074] When installing the electric heater 300, the second end 320 of the electric heater 300 can be inserted into the mounting hole 110 from the side of the mounting hole 110 away from the air duct. During the insertion of the electric heater 300, the mounting protrusion 321 and the opening groove 120 are matched and connected to achieve foolproofing, avoid the electric heater 300 from being installed upside down, and thus avoid the operator from rework and reinstallation, thereby improving the installation efficiency of the electric heater 300.

[0075] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in 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 air duct component for an indoor unit of an air conditioner, characterized in that: include: A first end plate, the first end plate forming a first end surface of one end of the air duct of the air conditioner indoor unit in the length direction; a mounting hole is formed on the first end plate; an opening groove or a protruding rib is provided on one side wall of the mounting hole; An electric heater, the electric heater is in the shape of an elongated strip, the two ends of the electric heater are respectively a first end and a second end, the second end is configured to pass through the mounting hole from the side of the first end plate away from the air duct, and be connected to the other end of the air duct away from the first end plate, the first end is inserted into the mounting hole; one side of the side wall of the second end is provided with a mounting protrusion corresponding to the opening groove, or is provided with a mounting groove corresponding to the protruding rib.

2. The air duct component according to claim 1, characterized in that: In the case where the opening groove is provided on one side wall of the mounting hole, and the mounting protrusion corresponding to the opening groove is provided on one side wall of the second end portion; The air duct component also includes a second end plate, which forms a second end surface of the air duct of the air conditioner indoor unit in the length direction away from one end of the first end plate; a mounting blind hole is formed on the second end plate; a positioning groove is provided on one side hole wall of the mounting blind hole; the second end portion is inserted into the mounting blind hole, and the mounting protrusion cooperates with the positioning groove.

3. The air duct component according to claim 2, characterized in that: A positioning protrusion matched with the opening groove is provided on one side of the side wall of the first end portion, and the positioning protrusion matches with the opening groove.

4. The air duct component according to claim 3, characterized in that: The mounting hole is rectangular in shape as a whole; An indicating protrusion is provided on the side wall of the first end portion adjacent to the side wall where the positioning protrusion is located.

5. The air duct component according to claim 1, characterized in that: The mounting hole is rectangular in shape as a whole, and the opening slot is arranged on a long side of the mounting hole; The opening groove is located at the center of the mounting hole in the length direction.

6. The air duct component according to claim 5, characterized in that: The first end plate is also formed with mounting posts located at the periphery of the mounting hole; there are two mounting posts, which are arranged oppositely at two ends of the mounting hole in the length direction; The electric heater comprises a mounting cover plate, the mounting cover plate is arranged on a side of the mounting hole away from the air duct; the mounting cover plate is provided with a connecting hole corresponding to the mounting column; The mounting post is located at the center of the mounting hole in a width direction.

7. The air duct component according to claim 6, characterized in that: The mounting cover plate is provided with a limiting rib located at the periphery of the mounting hole; the limiting rib is located on the side of the mounting cover plate close to the first end plate, so that the outer side wall of the mounting column blocks the inner side wall of the limiting rib in a direction perpendicular to the insertion direction of the electric heater.

8. The air duct component according to claim 1, characterized in that: The air duct component further includes an air duct frame, and the air duct frame defines the air duct; the first end plate is fixedly connected to one end of the air duct frame; A plurality of wire clips are integrally formed on the air duct frame and the first end plate, and the plurality of wire clips are arranged at intervals on a side of the first end plate away from the air duct and a side of the air duct frame away from the air duct.

9. The air duct component according to claim 8, characterized in that: The air duct skeleton forms two air ducts, and the two air ducts are arranged in parallel and at intervals; each of the air ducts is provided with a mounting hole and an electric heater; The wire clamp includes a first wire clamp and a plurality of second wire clamps; the first wire clamp is arranged on the first end plate and is located on the same side of the two mounting holes; the plurality of second wire clamps are arranged on the air duct frame along the length direction of the air duct; the plurality of second wire clamps are on the same side of the two air ducts and are on the same side of the air duct as the first wire clamp.

10. An air conditioner indoor unit, characterized in that: It comprises an air duct component as claimed in any one of claims 1 to 9 and a crossflow wind wheel corresponding to the air duct one by one, and each of the crossflow wind wheels is rotatably arranged in the corresponding air duct along its length direction.

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