Wind wheel assembly, indoor unit and heating and ventilation equipment

Abstract

The utility model provides a wind wheel assembly, an indoor unit and heating and ventilation equipment. The indoor unit comprises a wind wheel supporting frame, a wind wheel, a bearing, a bearing seat and a protective sleeve. The wind wheel supporting frame is provided with a shaft hole. The wind wheel comprises a rotating shaft which is inserted into the shaft hole; the bearing sleeves the rotating shaft; the bearing seat is sleeved on the bearing; the protecting sleeve is arranged on the bearing seat in a sleeving mode and clamped by the outer wall of the bearing seat and the hole wall of the shaft hole. The indoor unit is good in use performance.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a wind wheel assembly, an indoor unit using the wind wheel assembly, and a heating and ventilation device using the indoor unit. Background Art

[0002] Generally, the indoor unit includes a wind wheel support frame made of plastic and a wind wheel rotatably connected to the wind wheel support frame. In order to realize the rotational connection between the wind wheel and the wind wheel support frame, a set of bearings arranged on the outside of the rotating shaft will be arranged between the rotating shaft of the wind wheel and the wind wheel support frame. In order to support the outer periphery of the bearing, a bearing seat made of rubber will also be arranged between the bearing and the wind wheel support frame.

[0003] However, during the use of the indoor unit, plasticizers will be precipitated from the bearing seat, and the plasticizers will corrode the wind wheel support frame, thereby affecting the performance of the indoor unit and shortening the service life of the indoor unit. Utility Model Content

[0004] The embodiments of the present application provide a wind wheel assembly, an indoor unit and HVAC equipment, which are used to solve the problems of poor performance and short service life of the indoor unit in the related art.

[0005] In the first aspect, the present application provides a wind wheel assembly, including a wind wheel support frame, a wind wheel, a bearing, a bearing seat and a protective sleeve; the wind wheel support frame has a first axial hole; the wind wheel includes a rotating shaft, and the rotating shaft is inserted into the first axial hole; the bearing sleeve is arranged on the rotating shaft; the bearing seat is arranged on the bearing; the protective sleeve is arranged on the bearing seat and is clamped by the outer wall of the bearing seat and the hole wall of the first axial hole.

[0006] As an optional embodiment, the protective sleeve includes a protective body sleeved on the bearing seat; the protective body is clamped by the outer wall of the bearing seat and the hole wall of the first axial hole, and is detachably connected to the outer wall of the bearing seat and the hole wall of the first axial hole.

[0007] As an optional implementation, a first clamping structure is provided between the protective body and the outer wall of the bearing seat, and the first clamping structure clamps the protective body and the bearing seat together.

[0008] As an optional embodiment, the first clamping structure includes a first clamping portion, which is arranged on one of the outer walls of the protective body and the bearing seat; a first clamping groove is provided on the other of the outer walls of the protective body and the bearing seat, and the first clamping portion is clamped and connected with the first clamping groove to clamp the protective body and the bearing seat.

[0009] As an optional implementation, a first concave cavity is formed on the first clamping portion.

[0010] As an optional implementation, there are multiple first clamping portions, and the multiple first clamping portions are arranged at intervals along the circumference of the bearing seat.

[0011] As an optional implementation, the bearing seat is provided with a plurality of reinforcing ribs arranged at intervals along the circumference of the bearing seat, and each reinforcing rib abuts against the inner circumferential wall of the protective body.

[0012] As an optional implementation, a second clamping structure is provided between the protective body and the hole wall of the first axial hole, and the second clamping structure clamps the protective body and the wind wheel support frame together.

[0013] As an optional embodiment, the second clamping structure includes a second clamping portion, which is arranged on one of the protective body and the wall of the first axial hole; a second clamping groove cooperating with the second clamping portion is arranged on the other of the protective body and the wall of the first axial hole, and the second clamping portion is clamped and connected with the second clamping groove to clamp and connect the protective sleeve and the wind wheel support frame.

[0014] As an optional implementation, a second cavity is formed on one of the protective body and the wall of the first axial hole, and the second clamping portion is disposed on the bottom wall of the second cavity.

[0015] As an optional implementation, there are multiple second clamping portions, and the multiple second clamping portions are arranged at intervals along the circumference of the protective body.

[0016] As an optional implementation, a limiting structure is provided between the protective body and the wind wheel support frame, and the limiting structure is used to limit the relative position of the protective body and the wind wheel support frame in the circumferential direction of the first axial hole.

[0017] As an optional embodiment, the limiting structure includes a limiting rib, which is arranged on one of the protective body and the wind wheel support frame; a limiting groove for the limiting rib to extend into is arranged on the other of the protective body and the wind wheel support frame.

[0018] As an optional implementation, there are multiple limiting structures, and the multiple limiting structures are arranged at intervals along the circumference of the first axial hole.

[0019] As an optional implementation, the protective cover further includes a support seat connected to the protective body; an accommodating cavity is opened on the inner wall of the air duct, and the support seat is located in the accommodating cavity.

[0020] As an optional embodiment, the wind wheel support frame includes a support body and an annular connecting portion connected to the support body; the first axial hole includes a first axial hole section formed on the support body and a second axial hole section formed on the annular connecting portion, and the first axial hole section is connected to the second axial hole section.

[0021] As an optional implementation, the first shaft hole section and the second shaft hole section are coaxially arranged, and the first shaft hole section and the second shaft hole section have the same shape and the same size.

[0022] In the second aspect, the present application provides an indoor unit, including the above-mentioned wind wheel assembly and two side plates, which are arranged relatively to each other along the length direction of the indoor unit; one side plate has a second axial hole opposite to the first axial hole, and the bearing seat passes through the first axial hole and the second axial hole in sequence, and the bearing seat abuts against the inner wall surface of the side plate.

[0023] In a third aspect, the present application provides a HVAC device, including the above-mentioned indoor unit.

[0024] In the indoor unit and HVAC equipment provided in the embodiment of the present application, the indoor unit includes a protective sleeve, and the protective sleeve is clamped by the outer wall of the bearing seat and the hole wall of the shaft hole, that is, the protective sleeve is in direct contact with the bearing seat instead of the wind wheel support frame, so that even after the accelerator is precipitated from the bearing seat, it is the protective sleeve that is corroded instead of the wind wheel support frame. In this way, the wind wheel support frame can be prevented from being corroded to a certain extent, thereby extending the service life of the wind wheel support frame, so that the indoor unit provided in this embodiment has better performance and longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of the indoor unit provided in an embodiment of the present application;

[0027] Figure 2 for Figure 1 Schematic diagram of the structure from another perspective;

[0028] Figure 3 A three-dimensional structural diagram of a partial structure of an indoor unit provided in an embodiment of the present application;

[0029] Figure 4 for Figure 3 A structural diagram of a local structure;

[0030] Figure 5 for Figure 4 Exploded diagram of

[0031] Figure 6 A schematic diagram of the connection relationship between the protective sleeve and the bearing seat in the indoor unit provided in an embodiment of the present application;

[0032] Figure 7 for Figure 6 Cross-sectional view along AA direction;

[0033] Figure 8 A schematic diagram of the three-dimensional structure of a protective cover in an indoor unit provided in an embodiment of the present application;

[0034] Fig. 9 A schematic diagram of the three-dimensional structure of a bearing seat in an indoor unit provided in an embodiment of the present application;

[0035] Fig.10 A schematic diagram of the connection relationship between the wind wheel support frame and the protective cover in the indoor unit provided in an embodiment of the present application;

[0036] Fig.11 for Fig.10 Cross-sectional view along direction BB;

[0037] Fig.12 for Fig.11 A magnified schematic diagram of the local structure at C in the middle;

[0038] Fig.13 A schematic diagram of the connection relationship between the wind wheel support frame and the annular connecting portion in the indoor unit provided in an embodiment of the present application;

[0039] Fig.14 for Fig.13 A magnified schematic diagram of the local structure at point D in the middle.

[0040] Description of reference numerals:

[0041] 1. Casing; 2. Wind wheel; 3. Bearing; 4. Bearing seat; 5. Protective cover; 6. First clamping structure; 7. Second clamping structure; 8. Limiting structure;

[0042] 11. air duct; 12. shaft hole; 41. main body; 42. reinforcing rib; 51. protective body; 52. support seat; 61. first clamping part; 62. first clamping groove; 71. second clamping part; 72. second clamping groove; 81. limiting convex rib; 82. limiting groove;

[0043] 100, indoor unit; 111, return air outlet; 112, air outlet; 113, wind wheel cavity; 114, accommodating cavity; 121, first shaft hole section; 122, second shaft hole section; 131, wind wheel support frame; 132, side plate; 511, second concave cavity; 611, first concave cavity;

[0044] 1311. Support body; 1312. Annular connecting portion; 1321. Second axial hole. DETAILED DESCRIPTION

[0045] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0046] Generally, the indoor unit includes a wind wheel support frame made of plastic and a wind wheel rotatably connected to the wind wheel support frame. In order to realize the rotational connection between the wind wheel and the wind wheel support frame, a set of bearings arranged on the outside of the rotating shaft will be arranged between the rotating shaft of the wind wheel and the wind wheel support frame. In order to support the outer periphery of the bearing, a bearing seat made of rubber will also be arranged between the bearing and the wind wheel support frame.

[0047] However, during the use of the above-mentioned indoor unit, since the bearing seat will come into contact with the gas, plasticizer will be precipitated from the bearing seat. Since the wind wheel support frame in contact with the bearing seat is made of high impact polystyrene (HIPS) plastic, the plasticizer precipitated from the bearing seat will corrode the wind wheel support frame, thereby affecting the performance of the indoor unit and shortening the service life of the indoor unit.

[0048] It should be noted that plasticizers, also known as plasticizers, are substances that are added to polymer materials to increase the plasticity of polymers. They are a widely used additive for polymer materials.

[0049] Therefore, the embodiments of the present application provide a wind wheel assembly, an indoor unit and HVAC equipment, which can solve the problem in the above-mentioned related technology that the plasticizer precipitated from the bearing seat corrodes the wind wheel support frame and affects the performance and service life of the indoor unit.

[0050] The embodiments of the present application will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0051] See also Figure 1 to Figure 2 , Figure 1 A three-dimensional structural diagram of an indoor unit provided in an embodiment of the present application, Figure 2 for Figure 1 A schematic diagram of the structure from another perspective. Figure 1 and Figure 2 As shown, this embodiment provides an indoor unit 100, including a casing 1, in which an air duct 11 is formed. The air duct 11 has a return air port 111 and an air outlet 112, and the return air port 111 is connected to a wind wheel cavity 113, in which a wind wheel 2 is arranged.

[0052] During the operation of the indoor unit 100, the air in the indoor environment mainly relies on the rotation of the wind wheel 2 to enter the wind wheel cavity 113 through the return air port 111. Therefore, the indoor unit 100 provided in this embodiment also includes a wind wheel assembly, which includes a wind wheel 2 and a wind wheel support frame 131 rotatably connected to the rotating shaft of the wind wheel 2. Specifically, the wind wheel support frame 131 has a first axial hole 12, and the rotating shaft is inserted into the first axial hole to realize the rotational connection between the wind wheel 2 and the wind wheel support frame 131.

[0053] Therefore, in order to solve the problem in the above-mentioned related art that the plasticizer precipitated from the bearing seat corrodes the wind wheel support frame and affects the performance and service life of the indoor unit, this embodiment also provides a wind wheel assembly.

[0054] The wind wheel assembly provided in this embodiment will be introduced in detail below.

[0055] Please combine Figures 3 to 5 , Figure 3 A three-dimensional structural diagram of a partial structure of an indoor unit provided in an embodiment of the present application, Figure 4 for Figure 3 A schematic diagram of the local structure of Figure 5 for Figure 4 Exploded diagram.

[0056] Furthermore, in order to achieve smooth rotational connection between the rotating shaft and the first axial hole 12, the wind wheel assembly provided in this embodiment also includes a bearing 3, which is sleeved on the outside of the rotating shaft. In order to support the outer periphery of the bearing 3, a bearing seat 4 sleeved on the outside of the bearing 3 is also provided, wherein the bearing seat 4 is made of rubber.

[0057] The casing 1 also includes two side panels 132 arranged opposite to each other along the length direction of the indoor unit 100. One side panel 132 has a second axial hole 1321 arranged opposite to the first axial hole 12. The bearing seat 4 passes through the first axial hole 12 and the second axial hole 1321 in sequence and abuts against the inner wall surface of the side panel 132.

[0058] It should be noted that the length direction of the indoor unit 100 is Figures 1 to 3 The xx-axis direction is consistent.

[0059] From the above, it can be known that during the use of the indoor unit 100, due to the contact between the bearing seat 4 and the air, the plasticizer will be precipitated from the bearing seat 4, and the accelerator will corrode the wind wheel support frame 131. In order to overcome this phenomenon, an intermediate piece can be arranged between the bearing seat 4 and the wind wheel support frame 131. The setting of the intermediate piece can avoid direct contact between the bearing seat 4 and the casing 1. Specifically, the wind wheel assembly provided in this embodiment also includes a protective sleeve 5, which is arranged on the bearing seat 4 and clamped by the outer wall of the bearing seat 4 and the hole wall of the first axial hole 12.

[0060] By providing the protective sleeve 5, and making the protective sleeve 5 clamped by the outer wall of the bearing seat 4 and the hole wall of the first shaft hole 12, that is, the protective sleeve 5 is in direct contact with the bearing seat 4 instead of the wind wheel support frame 131, so that even after the speed increaser is precipitated from the bearing seat 4, it is the protective sleeve 5 that is corroded instead of the wind wheel support frame 131. In this way, the wind wheel support frame 131 can be prevented from being corroded to a certain extent, so as to extend the service life of the wind wheel support frame 131, so that the indoor unit 100 provided in this embodiment has better performance and longer service life.

[0061] In the above description, it can be known that the material that can be corroded by the plasticizer is HIPS. In order to prevent the protective cover 5 from being corroded by the plasticizer, in this embodiment, there are certain restrictions on the material used for the protective cover 5, that is, HIPS may not be used. For example, the protective cover 5 may be made of acrylonitrile-butadiene-styrene plastic (ABS), wherein ABS is a terpolymer of three monomers of acrylonitrile, butadiene, and styrene. Here, there is no specific restriction on the material of the protective cover 5.

[0062] In other embodiments, the protective cover 5 may also be made of HIPS. In this case, the requirement for the removability of the protective cover 5 is relatively high, so that the protective cover 5 can be disassembled and replaced when it is severely corroded.

[0063] Therefore, the protective sleeve 5 includes a protective body 51 sleeved on the bearing seat 4; the protective body 51 is clamped by the outer wall of the bearing seat 4 and the hole wall of the first shaft hole 12, and is detachably connected to the outer wall of the bearing seat 4 and the hole wall of the first shaft hole 12. In other words, the protective sleeve 5 is detachably connected to the bearing seat 4, and the protective sleeve 5 is detachably connected to the wind wheel support frame 131, so that when the protective sleeve 5 is corroded, it is convenient to remove the protective sleeve 5 for replacement.

[0064] From the above, it can be seen that the bearing seat 4 is made of rubber material, the protective cover 5 is made of plastic material, and the wind wheel support frame 131 is also made of plastic material. Therefore, the connection between the protective cover 5 and the bearing seat 4 can be connected by fasteners or by a snap-on connection; the connection between the protective cover 5 and the wind wheel support frame 131 can also be connected by fasteners or by a snap-on connection.

[0065] It is understandable that if fasteners are used for connection, other tools are needed to achieve the connection between the bearing seat 4, the protective sleeve 5 and the wind rotor support frame 131. Therefore, in some optional embodiments, the connection between the protective sleeve 5 and the bearing seat 4 and the connection between the protective sleeve 5 and the wind rotor support frame 131 can both be connected by a snap-on connection.

[0066] Inevitably, it is necessary to provide a corresponding clamping structure between the hole wall of the first axial hole 12 and the protective sleeve 5. In this case, the axial dimension of the first axial hole 12 needs to be larger. One method is to directly increase the size of the first axial hole 12, that is, to make the structural thickness of the wind wheel support frame 131 in which the first axial hole 12 is opened larger.

[0067] Another method is to provide a separate protruding structure. For example, in this embodiment, the wind rotor support frame 131 includes a support body 1311 and an annular connecting portion 1312 connected to the support body 1311; the first shaft hole 12 includes a first shaft hole section 121 formed on the support body 1311 and a second shaft hole section 122 formed on the annular connecting portion 1312, and the first shaft hole section 121 is connected to the second shaft hole section 122. In this way, on the one hand, the first shaft hole 12 can be opened, and on the other hand, it can avoid the problem that the thickness of the support body 1311 is too large and it is inconvenient to form and manufacture the wind rotor support frame 131.

[0068] In order to avoid affecting the sealing of the air duct 11 due to the opening of the first axial hole 12, in some optional embodiments, the wind wheel support frame 131 is arranged on the side of the side plate 132 facing the other side plate 132, and the inner wall surface of the support body 1311 forms a partial wall surface of the air duct 11, and the annular connection portion 1312 is connected to the support body 1311, and the annular connection portion 1312 is located between the support body 1311 and the side plate 132 close to it.

[0069] Since the first shaft hole section 121 and the second shaft hole section 122 form the first shaft hole 12, and the protective sleeve 5 is clamped by the outer wall of the bearing seat 4 and the hole wall of the first shaft hole 12, in order to facilitate the manufacturing, processing and installation of the protective sleeve 5, it is necessary to keep the hole wall of the first shaft hole 12 smooth, so that in some optional embodiments, the first shaft hole section 121 and the second shaft hole section 122 are coaxially arranged, and the first shaft hole section 121 and the second shaft hole section 122 have the same shape and size. In this way, the smoothness of the hole wall of the first shaft hole 12 can be ensured, so that the protective sleeve 5 can be easily processed, manufactured and installed.

[0070] It should be noted that the outer peripheral surface of the rotating shaft, the outer peripheral surface of the bearing 3 and the outer peripheral surface of the bearing seat 4 can all be a revolving surface, so in this embodiment, the first shaft hole 12 can be a circular hole. Here, the shape of the first shaft hole 12 is not specifically limited.

[0071] From the above, it can be known that in order to facilitate the removal of the protective sleeve 5, the protective sleeve 5 and the bearing seat 4 and the protective sleeve 5 and the housing 1 can be connected by a snap-fit ​​connection. Specifically, the protective body 51 and the outer wall of the bearing seat 4 are connected by a snap-fit ​​connection, and the protective body 51 and the hole wall of the first shaft hole 12 are connected by a snap-fit ​​connection. The connection between the protective body 51 and the outer wall of the bearing seat 4 and the connection between the protective body 51 and the hole wall of the first shaft hole 12 will be described in detail below.

[0072] Please combine Figure 6 to Figure 7 , Figure 6 A schematic diagram of the connection relationship between the protective sleeve and the bearing seat in the indoor unit provided in an embodiment of the present application, Figure 7 for Figure 6 Cross-sectional view along the AA direction As shown in the figure, a first clamping structure 6 is provided between the protective body 51 and the outer wall of the bearing seat 4, and the first clamping structure 6 clamps the protective body 51 and the bearing seat 4 together.

[0073] Specifically, the first clamping structure 6 includes a first clamping portion 61, which is arranged on one of the outer walls of the protective body 51 and the bearing seat 4; a first clamping groove 62 is provided on the other of the outer walls of the protective body 51 and the bearing seat 4, and the first clamping portion 61 is clamped and connected with the first clamping groove 62 to clamp and connect the protective body 51 and the bearing seat 4.

[0074] Please combine Figure 8 and Fig. 9 , Figure 8 This is a schematic diagram of the three-dimensional structure of the protective cover in the indoor unit provided in the embodiment of the present application. Fig. 9 A schematic diagram of the three-dimensional structure of the bearing seat in the indoor unit provided in an embodiment of the present application. In some specific embodiments, the first clamping portion 61 is provided on the protective body 51, and the first clamping portion 61 is a protrusion provided on the inner peripheral wall of the protective body 51 and extending radially toward the center of the protective body 51, and the first clamping groove 62 is provided on the bearing seat 4. Specifically, the bearing seat 4 includes a body portion 41 sleeved on the outside of the bearing 3, and the first clamping groove 62 is provided on the outer peripheral wall of the body portion 41, and the groove bottom of the first clamping groove 62 extends radially toward the center of the body portion 41, and the first clamping groove 62 extends in the circumferential direction of the bearing seat 4.

[0075] It can be understood that the more the number of first clamping structures 6 is, the more reliable the connection between the protective body 51 and the bearing seat 4 is. Therefore, in some optional embodiments, a plurality of first clamping portions 61 are provided, and the plurality of first clamping portions 61 are arranged at intervals along the circumference of the bearing seat 4. In this way, a reliable connection between the protective sleeve 5 and the bearing seat 4 can be achieved through the clamping connection between the plurality of first clamping portions 61 and the first clamping grooves 62.

[0076] Among them, when there are multiple first clamping parts 61, the first clamping groove 62 can be multiple or a complete one. Specifically, when there are multiple first clamping grooves 62, one first clamping groove 62 corresponds to one first clamping part 61; when there is one first clamping groove 62, the first clamping groove 62 along the circumference of the bearing seat 4 is a closed loop, that is, multiple first clamping parts 61 are clamped in the same first clamping groove 62.

[0077] Reference Fig. 9 , it shows the case where there is only one first clamping groove 62. In this way, not only can the protective sleeve 5 be reliably connected to the bearing seat 4, but also when only one first clamping groove 62 is provided, it is convenient to process and manufacture the bearing seat 4, thereby improving the processing efficiency of the bearing seat 4, thereby improving the manufacturing efficiency of the wind wheel assembly provided in this embodiment, and further improving the manufacturing efficiency of the indoor unit 100 provided in this embodiment.

[0078] like Figure 8 As shown, in some specific implementations, the number of the first clamping parts 61 can be 4. Here, the number of the first clamping parts 61 is not specifically limited.

[0079] Since the protective sleeve 5 is a plastic part, during the assembly process of the protective sleeve 5 and the bearing seat 4, if it is necessary to improve the assembly efficiency, the deformation of the protective sleeve 5 can be increased to achieve rapid assembly of the protective sleeve 5 and the bearing seat 4. Since the connection between the protective sleeve 5 and the bearing seat 4 is achieved through the clamping between the first clamping portion 61 and the first clamping groove 62, increasing the deformation of the protective sleeve 5 can also be achieved by increasing the deformation of the first clamping portion 61.

[0080] Furthermore, as an optional embodiment, a first cavity 611 is provided on the first clamping portion 61. Thus, by providing the first cavity 611, the deformation of the first clamping portion 61 can be increased, thereby improving the assembly efficiency between the protective sleeve 5 and the bearing seat 4.

[0081] The first concave cavity 611 can be arranged on the end face or side face of the first clamping portion 61. In the present embodiment, since the first clamping portion 61 is arranged at the end of the protective body 51, in order to facilitate the processing and forming of the protective sleeve 5 and to match the installation direction of the protective sleeve 5, the first concave cavity 611 is arranged on the end face of the first clamping portion 61 away from the blades of the wind wheel 2.

[0082] It should be noted that, in the present embodiment, the installation direction of the protective cover 5 is from the side of the wind rotor support frame 131 facing the blades of the wind rotor 2 to the side of the wind rotor support frame 131 facing away from the blades of the wind rotor 2 .

[0083] Since the bearing seat 4 is made of rubber, in some embodiments, in order to improve the structural strength of the bearing seat 4, a plurality of reinforcing ribs 42 may be provided on the bearing seat 4. Specifically, a plurality of reinforcing ribs 42 may be provided on the main body 41. The plurality of reinforcing ribs 42 are arranged at intervals along the circumference of the bearing seat 4. Each reinforcing rib 42 abuts against the inner circumferential wall of the protective body 51, and the plurality of reinforcing ribs 42 are located on the side of the first clamping groove 62 close to the wind wheel 2. The provision of the reinforcing ribs 42 can not only enhance the structural strength of the bearing seat 4, but also increase the friction between the protective sleeve 5 and the bearing seat 4 when the reinforcing ribs 42 abut against the inner circumferential wall of the protective body 51, so as to further improve the connection reliability between the bearing seat 4 and the protective sleeve 5.

[0084] It should be noted that the first clamping structure 6 is mainly used to limit the relative position of the protective sleeve 5 and the bearing seat 4 in the axial direction of the wind wheel 2 .

[0085] Please combine Figures 10 to 12 , Fig.10 A schematic diagram of the connection relationship between the wind wheel support frame and the protective cover in the indoor unit provided in an embodiment of the present application, Fig.11 for Fig.10 Cross-sectional view along BB direction, Fig.12 for Fig.11 A schematic diagram of the enlarged local structure at C in the middle. In order to realize the snap connection between the protective sleeve 5 and the hole wall of the first shaft hole 12, in some embodiments, a second snap-fit ​​structure 7 is provided between the protective body 51 and the hole wall of the first shaft hole 12, and the second snap-fit ​​structure 7 snaps the protective body 51 and the casing 1 together, that is, the second snap-fit ​​structure 7 snaps the protective body 51 and the wind rotor support frame 131 together. In this way, the protective sleeve 5 and the wind rotor support frame 131 can be detachably connected together by the provision of the second snap-fit ​​structure 7.

[0086] Specifically, the second clamping structure 7 includes a second clamping portion 71, and the second clamping portion 71 is arranged on one of the protective body 51 and the wall of the first axial hole 12; a second clamping groove 72 cooperating with the second clamping portion 71 is arranged on the other of the protective body 51 and the wall of the first axial hole 12, and the second clamping portion 71 is clamped and connected with the second clamping groove 72 to clamp and connect the protective sleeve 5 and the casing 1, that is, the second clamping portion 71 is clamped and connected with the second clamping groove 72 to clamp and connect the protective body 51 and the annular connecting portion 1312.

[0087] Please combine Fig.13 and Fig.14 , Fig.13 A schematic diagram of the connection relationship between the wind wheel support frame and the annular connecting portion in the indoor unit provided in an embodiment of the present application, Fig.14 for Fig.13 The enlarged schematic diagram of the local structure at D in the middle. In this embodiment, the second clamping portion 71 is arranged on the outer peripheral wall of the protective body 51, and the second clamping portion 71 is a protrusion protruding toward the outer side of the protective body 51 along the radial direction of the protective body 51, and the second clamping groove 72 is a groove provided on the blade end face of the annular connecting portion 1312 facing away from the wind wheel 2. When the protective body 51 and the annular connecting portion 1312 are clamped together, the second clamping portion 71 abuts against the groove bottom of the second clamping groove 72.

[0088] Among them, the extension direction of the bottom of the second clamping groove 72 is consistent with the installation direction of the protective sleeve 5, that is, the extension direction of the bottom of the second clamping groove 72 is consistent with the axial direction of the annular connecting part 1312, and the second clamping groove 72 extends along the circumference of the annular connecting part 1312.

[0089] In order to increase the assembly speed between the protective body 51 and the wind wheel support frame 131, the deformation of the protective body 51 or the wind wheel support frame 131 can be increased. Since the connection between the protective body 51 and the wind wheel support frame 131 is the cooperation of the second clamping part 71 and the second clamping groove 72, a structure for increasing the deformation can be set in the adjacent area of ​​the second clamping part 71.

[0090] For example, the second cavity 511 may be provided on the protective body 51, and the second clamping portion 71 may be provided on the bottom wall of the second cavity 511. In this way, the deformation of the protective body 51 may be increased to improve the assembly speed between the protective sleeve 5 and the wind wheel support frame 131.

[0091] It should be noted that the extension direction of the bottom of the second cavity 511 is consistent with the radial direction of the protective body 51 , and the cavity opening of the second cavity 511 faces the outside of the protective body 51 .

[0092] In order to improve the connection reliability between the protective cover 5 and the wind rotor support frame 131, a plurality of second clamping portions 71 may be provided, and the plurality of second clamping portions 71 are arranged at intervals along the circumference of the protective body 51. In this way, the connection reliability between the protective cover 5 and the wind rotor support frame 131 can be improved.

[0093] When there are multiple second clamping parts 71, there can also be multiple second clamping grooves 72, with one second clamping groove 72 corresponding to one second clamping part 71; and there can also be one second clamping groove 72, that is, it is annular in the circumferential direction of the annular connecting part 1312, and because in this embodiment, the second clamping groove 72 penetrates the annular connecting part 1312 in the radial direction of the annular connecting part 1312, at this time, the second clamping part 71 will abut against the end face of the annular connecting part 1312, that is, there is no need to set the second clamping groove 72.

[0094] It should be noted that the second clamping structure 7 in this embodiment mainly limits the relative position between the protective sleeve 5 and the wind wheel support frame 131 in the axial direction of the wind wheel 2. Therefore, the position of the protective sleeve 5 may change in the circumferential direction of the annular connecting portion 1312.

[0095] In order to avoid this phenomenon, in some embodiments, a limiting structure 8 may be provided between the protective body 51 and the wind rotor support frame 131, and the limiting structure 8 is used to limit the relative position of the protective body 51 and the wind rotor support frame 131 in the circumferential direction of the first shaft hole 12. In this way, the setting of the limiting structure 8 can prevent the protective cover 5 from rotating to a certain extent, thereby improving the reliability of the protective cover 5 after assembly.

[0096] Specifically, the limiting structure 8 includes a limiting rib 81, which is disposed on one of the protective body 51 and the wind rotor support frame 131; and a limiting groove 82 is disposed on the other of the protective body 51 and the wind rotor support frame 131, into which the limiting rib 81 extends. In this way, the position of the protective cover 5 in the circumferential direction of the annular connecting portion 1312 can be determined by the cooperation between the limiting rib 81 and the limiting groove 82, so as to prevent the protective cover 5 from rotating to a certain extent.

[0097] It should be noted that, after the protective sleeve 5 is assembled, the limiting convex ribs 81 and the reinforcing ribs 42 should be arranged at intervals in the circumferential direction of the protective sleeve 5 .

[0098] Furthermore, in this embodiment, the limiting rib 81 is provided on the outer peripheral wall of the protective body 51, and the extending direction of the limiting rib 81 is consistent with the axial direction of the protective sleeve 5. Accordingly, the limiting groove 82 is provided on the inner peripheral wall of the annular connecting portion 1312, and the extending direction of the limiting groove 82 is consistent with the axial direction of the annular connecting portion 1312. In this way, the shapes of the limiting groove 82 and the limiting rib 81 are more compatible, thereby improving the limiting reliability of the limiting structure 8.

[0099] In order to further prevent the protective sleeve 5 from rotating, in some optional embodiments, a plurality of limiting structures 8 are provided, and the plurality of limiting structures 8 are arranged at intervals along the circumference of the first shaft hole 12, that is, a plurality of limiting ribs 81 are arranged at intervals along the outer circumferential wall of the protective body 51, and a plurality of limiting grooves 82 are arranged at intervals along the circumference of the annular connecting portion 1312 on the inner circumferential wall of the annular connecting portion 1312, and one limiting groove 82 corresponds to one limiting rib 81. In this way, the protective sleeve 5 can be further prevented from rotating to a certain extent.

[0100] In some optional embodiments, in order to improve the assembly efficiency between the protective sleeve 5 and the wind rotor support frame 131, the relative position between the end of the protective sleeve 5 along the axial direction and the wind rotor support frame 131 can be limited, so that one end of the protective sleeve 5 can abut against the inner wall of the wind duct 11, and the other end of the protective sleeve 5 can extend into the first shaft hole 12. Specifically, one end of the protective sleeve 5 abuts against the wind rotor support frame 131, and the other end of the protective sleeve 5 extends into the first shaft hole 12. In this way, when the end of the protective sleeve 5 abuts against the wind rotor support frame 131, it means that the assembly of the protective sleeve 5 is completed.

[0101] Since the end of the protective cover 5 abuts against the inner wall of the air duct 11, in order to avoid the setting of the protective cover 5 occupying the space in the air duct 11, in some embodiments, the protective cover 5 also includes a support seat 52 connected to the protective body 51; the wind wheel support frame 131 is formed with a receiving cavity 114, and the support seat 52 is located in the receiving cavity 114. In this way, not only can the end of the protective cover 5 abut against the wind wheel support frame 131, but also it can avoid that the end of the protective cover 5 occupies part of the space of the air duct 11 and affects the gas flow. On the one hand, it can improve the assembly efficiency between the protective cover 5 and the wind wheel support frame 131, and on the other hand, it makes the indoor unit 100 provided in this embodiment have better performance.

[0102] This embodiment further provides a HVAC device, including the indoor unit 100 in the above embodiment. The indoor unit 100 has been described in detail in the above embodiment, and will not be described again here.

[0103] It should be noted that the HVAC equipment provided in this embodiment should also include other components or modules such as an outdoor unit. Here, other components or modules in the HVAC equipment provided in this embodiment will not be introduced one by one.

[0104] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0105] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0106] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0107] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0108] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 present application. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0109] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A wind wheel assembly, characterized in that: include: The wind wheel support frame has a first shaft hole; The wind wheel comprises a rotating shaft, wherein the rotating shaft is inserted into the first shaft hole; A bearing, sleeved on the rotating shaft; A bearing seat, sleeved on the bearing; and The protective sleeve is sleeved on the bearing seat and is clamped by the outer wall of the bearing seat and the hole wall of the first shaft hole.

2. The wind wheel assembly according to claim 1, characterized in that: The protective sleeve comprises a protective body sleeved on the bearing seat; The protective body is clamped by the outer wall of the bearing seat and the hole wall of the first shaft hole, and is detachably connected to the outer wall of the bearing seat and the hole wall of the first shaft hole.

3. The wind wheel assembly according to claim 2, characterized in that: A first clamping structure is provided between the protective body and the outer wall of the bearing seat, and the first clamping structure clamps the protective body and the bearing seat together.

4. The wind wheel assembly according to claim 3, characterized in that: The first clamping structure includes a first clamping portion, and the first clamping portion is disposed on one of the protective body and the outer wall of the bearing seat; A first clamping groove is provided on the other of the outer wall of the protection body and the bearing seat, and the first clamping portion is clamped and connected with the first clamping groove to clamp and connect the protection body and the bearing seat.

5. The wind wheel assembly according to claim 4, characterized in that: The first clamping portion is provided with a first concave cavity.

6. The wind wheel assembly according to claim 4, characterized in that: There are multiple first clamping parts, and the multiple first clamping parts are arranged at intervals along the circumference of the bearing seat.

7. The wind wheel assembly according to claim 2, characterized in that: The bearing seat is provided with a plurality of reinforcing ribs arranged at intervals along the circumference of the bearing seat, and each of the reinforcing ribs abuts against the inner circumferential wall of the protective body.

8. The wind wheel assembly according to claim 2, characterized in that: A second clamping structure is provided between the protective body and the hole wall of the first shaft hole, and the second clamping structure clamps the protective body and the wind wheel supporting frame together.

9. The wind wheel assembly according to claim 8, characterized in that: The second clamping structure comprises a second clamping portion, and the second clamping portion is disposed on one of the protective body and the wall of the first shaft hole; A second clamping groove matched with the second clamping portion is provided on the other of the protective body and the wall of the first shaft hole, and the second clamping portion is clamped and connected with the second clamping groove to clamp and connect the protective sleeve and the wind wheel support frame.

10. The wind wheel assembly according to claim 9, characterized in that: A second concave cavity is formed on one of the protective body and the wall of the first axial hole, and the second clamping portion is arranged on the bottom wall of the second concave cavity.

11. The wind wheel assembly according to claim 9, characterized in that: There are a plurality of the second clamping portions, and the plurality of the second clamping portions are arranged at intervals along the circumference of the protective body.

12. The wind wheel assembly according to claim 2, characterized in that: A limiting structure is provided between the protective body and the wind wheel support frame, and the limiting structure is used to limit the relative position of the protective body and the wind wheel support frame in the circumferential direction of the first shaft hole.

13. The wind wheel assembly according to claim 12, characterized in that: The limiting structure includes a limiting convex rib, and the limiting convex rib is arranged on one of the protection body and the wind wheel support frame; A limiting groove for the limiting rib to extend into is arranged on the other of the protective body and the wind wheel support frame.

14. The wind wheel assembly according to claim 12, characterized in that: There are multiple limiting structures, and the multiple limiting structures are arranged at intervals along the circumference of the first shaft hole.

15. The wind wheel assembly according to claim 14, characterized in that: The protective sleeve also includes a support seat connected to the protective body; The wind wheel support frame is formed with a receiving cavity, and the supporting seat is located in the receiving cavity.

16. The wind wheel assembly according to any one of claims 1 to 15, characterized in that: The wind wheel support frame comprises a support body and an annular connection portion connected to the support body; The first axial hole includes a first axial hole section formed on the supporting body and a second axial hole section formed on the annular connecting portion, and the first axial hole section is communicated with the second axial hole section.

17. The wind wheel assembly according to claim 16, characterized in that: The first shaft hole section and the second shaft hole section are coaxially arranged, and the first shaft hole section and the second shaft hole section have the same shape and the same size.

18. An indoor unit, characterized in that: It comprises the wind wheel assembly and two side plates according to any one of claims 1 to 17, wherein the two side plates are arranged opposite to each other along the length direction of the indoor unit; A second axial hole opposite to the first axial hole is provided on the side plate, the bearing seat passes through the first axial hole and the second axial hole in sequence, and the bearing seat abuts against the inner wall surface of the side plate.

19. A HVAC equipment, characterized in that: Includes the indoor unit according to claim 18.

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