Indoor unit, and heating and ventilation apparatus

Abstract

An indoor unit (10), and a heating and ventilation apparatus. The indoor unit (10) comprises a housing (1), an electric motor bracket (5), an electric motor cover (6) and an electric motor (4), wherein the electric motor bracket (5) is connected to the housing (1), the electric motor cover (6) covers the electric motor bracket (5) and is detachably connected to the electric motor bracket (5), such that the electric motor (4) is fixed between the electric motor bracket (5) and the electric motor cover (6); and the electric motor cover (6) is exposed to the bottom of the indoor unit (10), so as to facilitate maintenance of the electric motor (4).

Description

Indoor unit and HVAC equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 11, 2024, with application number 202420079046.6, and invention name “Indoor unit and HVAC equipment”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of air conditioning, and in particular to an indoor unit and a heating and ventilation equipment using the indoor unit. Background Art

[0003] A ducted air conditioner is a type of indoor unit. In related art, the indoor unit consists of a housing, a fan, and a motor. The housing defines an air duct, with the fan located within a fan cavity within the duct. The motor is connected to the fan in a transmission manner. To repair the motor, the housing must be disassembled before the motor cover can be removed.

[0004] However, the disassembly and assembly method of the motor in the above-mentioned indoor unit is relatively complicated, which makes it inconvenient to perform subsequent maintenance on the motor. Summary of the Invention

[0005] The embodiments of the present application provide an indoor unit and HVAC equipment, which are used to solve the problem in the related art that the disassembly and assembly method of the motor of the indoor unit is relatively complicated, making it inconvenient to perform subsequent maintenance on the motor.

[0006] In a first aspect, the present application provides an indoor unit, comprising a shell, a motor bracket, a motor cover and a motor; the motor bracket is connected to the shell, the motor cover is buckled on the motor bracket, and is detachably connected to the motor bracket to fix the motor between the motor bracket and the motor cover; wherein the motor cover is exposed at the bottom of the indoor unit.

[0007] As an optional embodiment, the motor cover is covered on the side of the motor bracket facing away from the housing. In this way, after the grille on the inspection opening is removed, the motor cover can be fully seen, and the motor cover can be removed from the motor bracket, making it easier to inspect the motor in the future.

[0008] As an optional embodiment, an air duct is formed in the shell, and the air duct includes a connected return air port and a wind wheel cavity, and a wind wheel connected to the motor transmission is provided in the wind wheel cavity; the motor cover is exposed at the return air port.

[0009] As an optional embodiment, one side of the motor cover is snap-connected to one side of the motor bracket, and the other side of the motor cover is detachably connected to the other side of the motor bracket via a connector. Compared to traditional connections using threaded fasteners, this connection between the motor cover and the motor bracket can be achieved without the assistance of third-party tools, which can improve the efficiency of assembly and disassembly between the motor cover and the motor bracket.

[0010] As an optional embodiment, the opposite sides of the motor cover and the opposite sides of the motor bracket are detachably connected via connectors. Compared to traditional connections using threaded fasteners, this connection between the motor cover and the motor bracket can be achieved without the aid of third-party tools, further improving the efficiency of assembly and disassembly between the motor cover and the motor bracket.

[0011] As an optional embodiment, a connecting hole is opened on the motor cover and a plug-in hole is opened on the motor bracket; part of the structure of the connecting piece can slide along the connecting hole and the plug-in hole and be inserted into the connecting hole and the plug-in hole to lock the motor cover and the motor bracket.

[0012] As an optional embodiment, the connecting part includes an operating part and a plug-in part connected to the operating part; the plug-in part can be slidably inserted into the connecting hole and the plug-in hole to relatively fix the motor cover and the motor bracket, and the operating part is at least partially exposed outside the motor cover so as to be exposed at the bottom of the indoor unit.

[0013] As an optional embodiment, the operating portion includes a sliding section and a toggle section, with the plug-in portion and the toggle section both connected to the sliding section. The sliding section slidably engages with the motor cover, and at least a portion of the toggle section is exposed outside the motor cover. This exposed toggle section facilitates operation of the connector.

[0014] As an optional embodiment, a sliding space is formed on the motor cover, and the sliding section slides along the sliding space. In this way, it can play a certain guiding role in the movement of the connecting member and improve the stability of the connecting member during the movement.

[0015] As an optional implementation, the sliding space is formed on a side of the motor cover facing the motor bracket; a first through hole for the toggle section to pass through is formed on the bottom wall of the sliding space.

[0016] As an optional embodiment, a sliding space is formed on the side of the motor cover facing away from the motor bracket; the toggle section is located in the sliding space, and a second through hole is provided on the bottom wall of the sliding space for a part of the structure of the sliding section to pass through, so that the plug-in part is connected to the sliding section.

[0017] As an optional implementation, a limiting structure is provided between the operating portion and the motor cover, and the limiting structure is used to limit the sliding stroke of the connecting member.

[0018] As an optional embodiment, the motor cover includes a cover body and a stopper connected to the cover body; the stopper is used to stop the operating part in the length direction of the indoor unit.

[0019] As an optional implementation, a positioning structure is provided between the motor bracket and the motor cover; the positioning structure is used to limit the relative position of the motor bracket and the motor cover in the axial direction of the motor.

[0020] As an optional embodiment, the positioning structure includes a protrusion and a positioning portion; the protrusion is arranged on one of the motor bracket and the motor cover, the positioning portion is arranged on the other of the motor bracket and the motor cover, and the positioning portion is stopped on one side of the protrusion along the axial direction of the motor.

[0021] As an optional embodiment, the housing includes a first housing and a second housing that are fastened together, and the motor bracket is detachably connected to the first housing. This makes it easier to install the motor bracket on the first housing and improves the efficiency of assembly and disassembly between the motor bracket and the first housing.

[0022] In a second aspect, the present application provides a HVAC device including the above-mentioned indoor unit.

[0023] In the indoor unit and HVAC equipment provided in the embodiments of the present application, the motor cover is exposed at the bottom of the indoor unit, and the motor cover and motor bracket are detachably connected. Therefore, by opening the grille at the inspection port, the motor cover is visible, and the motor cover can be removed from the motor bracket to remove the motor. This makes the motor assembly and disassembly more convenient than the related art method of removing the indoor unit casing for motor maintenance, facilitating later motor maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic diagram of the three-dimensional structure of an indoor unit provided in an embodiment of the present application;

[0025] FIG2 is an exploded view of an indoor unit provided in an embodiment of the present application;

[0026] FIG3 is a schematic diagram of the planar structure of the indoor unit provided in an embodiment of the present application;

[0027] FIG4 is a schematic structural diagram of a partial structure of an indoor unit provided in an embodiment of the present application;

[0028] FIG5 is a schematic diagram of a three-dimensional structure of an embodiment of the cooperation between a motor cover, a motor bracket and a motor in an indoor unit provided by an embodiment of the present application;

[0029] FIG6 is a schematic diagram of the planar structure of FIG5 ;

[0030] FIG7 is an exploded view of FIG5 ;

[0031] FIG8 is a schematic diagram of the planar structure of FIG5 from another perspective;

[0032] FIG9 is a cross-sectional view taken along the AA direction in FIG8 ;

[0033] FIG10 is an enlarged schematic diagram of the local structure at point B in FIG9 ;

[0034] FIG11 is a schematic diagram of the three-dimensional structure of another embodiment of the cooperation between the motor cover, the motor bracket and the motor in the indoor unit provided by the embodiment of the present application;

[0035] FIG12 is a schematic diagram of the planar structure of FIG11;

[0036] FIG13 is an exploded view of FIG11 ;

[0037] FIG14 is a schematic structural diagram of the motor bracket and the motor cover in the embodiment corresponding to FIG5;

[0038] FIG15 is a cross-sectional view taken along the CC direction of FIG14;

[0039] FIG16 is an enlarged schematic diagram of the local structure at D in FIG15 ;

[0040] FIG17 is a schematic structural diagram of the motor bracket and the motor cover in the embodiment corresponding to FIG14;

[0041] FIG18 is a cross-sectional view of FIG17 taken along the EE direction;

[0042] FIG19 is an enlarged schematic diagram of the local structure at point F in FIG18 ;

[0043] FIG20 is a schematic diagram of the three-dimensional structure of the connecting member in the indoor unit provided in an embodiment of the present application;

[0044] FIG21 is a schematic diagram of the matching relationship between the motor cover and the connector in the embodiment corresponding to FIG5 ;

[0045] FIG22 is an enlarged schematic diagram of the local structure at G in FIG17 ;

[0046] FIG23 is a schematic diagram of the three-dimensional structure of the motor cover in the embodiment corresponding to FIG5 ;

[0047] FIG24 is a schematic diagram of the three-dimensional structure of FIG23 from another perspective;

[0048] FIG25 is a schematic diagram of the three-dimensional structure of the motor cover in the embodiment corresponding to FIG14;

[0049] FIG26 is a schematic diagram of the three-dimensional structure of FIG25 from another perspective;

[0050] FIG27 is another schematic diagram of the structure of the motor bracket and the motor cover in the embodiment corresponding to FIG5;

[0051] FIG28 is a cross-sectional view of FIG27 taken along the HH direction;

[0052] FIG29 is an enlarged schematic diagram of the local structure at point I in FIG28;

[0053] FIG30 is a schematic diagram of the three-dimensional structure of the motor bracket in the embodiment corresponding to FIG5 ;

[0054] FIG31 is a schematic diagram of the connection structure between the motor bracket and the first housing in the indoor unit provided by an embodiment of the present application;

[0055] FIG32 is a cross-sectional view of FIG31 taken along the JJ direction;

[0056] FIG33 is an enlarged schematic diagram of the local structure at point K in FIG32 .

[0057] Explanation of the accompanying reference numerals: 1. housing; 2. impeller; 3. evaporator; 4. motor; 5. motor bracket; 6. motor cover; 7. electric control box; 8. connector; 9. protrusion; 10. indoor unit; 11. first housing; 12. second housing; 13. air duct; 51. bracket body; 52. extension portion; 53. snap-fitting space; 54. reinforcing plate; 55. connecting plate; 56. plugging hole; 57. first connecting ear; 58. extension portion; 59. latching protrusion; 61. cover; 62. latching hook; 63. connecting hole; 64. second connecting ear; 65. side plate; 66. guide short plate; 67. cavity; 81. operating portion; 82. plugging portion; 20. positioning portion; 30. limiting structure; 40. positioning structure; 111. Second clamping hole; 121. Mounting cavity; 131. Return air outlet; 132. Wind wheel cavity; 133. Diffuser cavity; 134. Heat exchange cavity; 135. Air outlet; 511. First clamping hole; 512. Motor slot; 581. Threaded hole; 591. Protrusion; 611. Sliding space; 612. Limiting block; 613. Stopping portion; 621. Penetrating portion; 622. Abutting portion; 811. Sliding section; 812. Toggle section; 6111. First through hole; 6112. Second through hole; 6113. Mounting cavity; 6131. ​​Stop surface; 8111. Sliding body; 8112. Third connecting ear; 8113. Weight reduction hole; 8114. Limiting convex. DETAILED DESCRIPTION

[0058] In the related art, an indoor unit includes a housing, a wind wheel, and a motor. An air duct is formed in the housing, and the wind wheel is located in the wind wheel cavity of the air duct. The motor is connected to the wind wheel by transmission. The motor is placed on a partition or on a motor bracket in the air duct. The motor cover is then connected to the partition or motor bracket with screws to secure the motor. When the motor needs to be repaired, the housing must be disassembled before the motor cover can be removed for disassembly and repair. However, the disassembly and assembly method of the motor in the above-mentioned indoor unit is relatively complicated, making it inconvenient to perform subsequent repairs on the motor.

[0059] Therefore, the embodiment of the present application provides an indoor unit and HVAC equipment, wherein the motor is easy to disassemble and assemble, and easy to inspect and repair the motor later.

[0060] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0061] Please refer to Figures 1 to 4. Figure 1 is a schematic diagram of the three-dimensional structure of the indoor unit provided in an embodiment of the present application, Figure 2 is an exploded view of the indoor unit provided in an embodiment of the present application, Figure 3 is a schematic diagram of the planar structure of the indoor unit provided in an embodiment of the present application, and Figure 4 is a schematic diagram of the structure of the partial structure of the indoor unit provided in an embodiment of the present application. As shown in Figures 1 to 4, an embodiment of the present application provides an indoor unit 10, including a shell 1, the shell 1 includes a first shell 11 and a second shell 12 connected together, the first shell 11 and the second shell 12 enclose an air duct 13, the air duct 13 includes a return air port 131, a wind wheel cavity 132, a pressure diffusion cavity 133, a heat exchange cavity 134 and an air outlet 135 connected in sequence, the return air port 131 is opposite to the inspection port at the bottom of the indoor unit 10, a wind wheel 2 is provided in the wind wheel cavity 132, and an evaporator 3 is provided in the heat exchange cavity 134. When the indoor unit 10 is working, the air flow can pass through the return air port 131 , the wind wheel cavity 132 , the pressure diffuser cavity 133 and the heat exchange cavity 134 , and then flow out from the air outlet 135 .

[0062] To drive the wind rotor 2 to rotate, the indoor unit 10 provided in this embodiment should also include a motor 4, which is in transmission connection with the wind rotor 2 and is located on one side of the wind rotor 2 along the length direction of the indoor unit 10. The length direction of the indoor unit 10 is consistent with the xx-axis direction in Figures 1 to 3.

[0063] Generally, in order to fix the motor 4, the motor bracket 5 can be connected to the first housing 11, and a motor cover 6 can be attached to the motor bracket 5. The motor cover 6 is detachably connected to the motor bracket 5 to fix the motor 4 between the motor bracket 5 and the motor cover 6. The motor cover 6 is exposed at the bottom of the indoor unit 10, that is, the motor cover 6 can be exposed through an inspection port on the ceiling below the indoor unit 10. In this way, when the motor 4 needs to be inspected, the motor cover 6 can be observed by removing the grille at the inspection port, and then the motor cover 6 can be removed to remove the motor 4 for inspection. In this way, compared with the method in the related art that requires disassembly of the housing before the motor can be inspected, the disassembly and assembly of the motor 4 in this embodiment is more convenient, thereby facilitating the inspection of the motor 4.

[0064] When the motor cover 6 is visible through the inspection opening, the motor cover 6 and the motor bracket 5 may be arranged along the axial direction of the motor 4. This makes it difficult to remove the motor cover 6 when the grille at the inspection opening is opened. Therefore, in some embodiments, the motor cover 6 covers the side of the motor bracket 5 facing away from the housing 1, specifically the side facing away from the first housing 11. That is, the motor cover 6 covers the side of the motor bracket 5 facing the inspection opening. In other words, in this embodiment, the motor cover 6 covers the bottom of the motor bracket 5. In this way, when the grille at the inspection opening is opened, the motor cover 6 can be directly removed from the motor bracket 5, thereby removing the motor 4, further improving the ease of assembly and disassembly and maintenance of the motor 4.

[0065] Since the return air vent 131 in this embodiment is opposite to the inspection port, the motor cover 6 can be exposed from the return air vent 131. In this way, while maintaining the convenience of removing and installing the motor cover 6, when the indoor unit 10 is in operation, external air can flow through the return air vent 131 to the motor cover 6 to dissipate heat from the motor 4.

[0066] At the same time, in some embodiments, in order to improve the compactness of the overall structure of the indoor unit 10 and the overall performance of the indoor unit 10, a mounting cavity 121 can be formed on the bottom surface of the second shell 12, and the mounting cavity 121 is recessed upward, and the electric control box 7 can be arranged in the mounting cavity 121 and arranged toward the return air port 131. Moreover, the electric control box 7 is detachably connected to the second shell 12. In this way, when the grille on the inspection port is opened, the electric control box 7 will also be exposed, making it easier to inspect and repair the electric control box 7. In addition, the airflow entering through the return air port 131 can also dissipate heat for the electric control box 7. In other words, the airflow entering through the return air port 131 can simultaneously dissipate heat for the motor 4 and the electric control box 7, thereby improving the performance of the indoor unit 10 provided in this embodiment.

[0067] By installing the electric control box 7 in the installation cavity 121, not only the above effects are achieved, but also the overall size of the indoor unit 10 does not change in the height direction of the indoor unit 10. Therefore, the overall structural compactness of the indoor unit 10 provided in this embodiment can be improved.

[0068] In a more common method, screws or other threaded fasteners are usually used to connect the motor cover 6 and the motor bracket 5. Therefore, when removing the motor cover 6, a third-party tool is required to remove the motor cover 6. This reduces the efficiency of removing the motor cover 6 and thus reduces the efficiency of repairing the motor 4.

[0069] To overcome the aforementioned drawbacks, this embodiment provides two connection methods for the motor cover 6 and the motor bracket 5 to improve the efficiency of assembly and disassembly of the motor cover 6 and the maintenance of the motor 4. These two methods are described below. Since both connection methods utilize the connector 8 described below, the structure of the connector 8 will be described only once and will not be repeated for both connection methods.

[0070] Please refer to Figures 5 and 7. Figure 5 is a schematic three-dimensional diagram of an embodiment of the motor cover, motor bracket, and motor in the indoor unit provided by an embodiment of the present application. Figure 6 is a schematic plan view of the structure of Figure 5, and Figure 7 is an exploded view of Figure 5. As shown in Figures 5 to 7, along the width of the indoor unit 10, one side of the motor cover 6 is snap-connected to one side of the motor bracket 5, and the other side of the motor cover 6 is detachably connected to the other side of the motor bracket 5 via a connector 8. In Figure 6, the arrow on one side of the connector 8 indicates the direction of operation of the connector 8.

[0071] It should be noted that the width direction of the indoor unit 10 is consistent with the yy-axis direction in Figures 1 to 4.

[0072] Please continue to refer to Figures 8 to 10. Figure 8 is a schematic diagram of the planar structure of Figure 5 from another perspective, Figure 9 is a cross-sectional view of Figure 8 along the AA direction, and Figure 10 is an enlarged schematic diagram of the local structure at point B in Figure 9.

[0073] As shown in the figure, the motor cover 6 is detachably connected to the motor bracket 5 via a snap-fit ​​connection on the side of the motor cover 6 away from the heat exchange chamber 134. Specifically, the motor cover 6 includes a cover body 61 and a hook 62. The hook 62 is connected to the side of the cover body 61 away from the heat exchange chamber 134. One end of the hook 62 is connected to the cover body 61, and the other end of the hook 62 extends downward toward the side away from the heat exchange chamber 134.

[0074] Correspondingly, the motor bracket 5 includes a bracket body 51 and an extension portion 52. The extension portion 52 is connected to the side of the bracket body 51 away from the heat exchange chamber 134. One end of the extension portion 52 is connected to the bracket body 51, and the other end of the extension portion 52 is toward the side of the bracket body 51 away from the heat exchange chamber 134 and extends upward. A clamping space 53 is formed between the bracket body 51 and the extension portion 52. A first clamping hole 511 is provided on the bracket body 51. A plurality of reinforcing plates 54 are connected between the extension portion 52 and the bracket body 51. Any two adjacent reinforcing plates 54 are connected. The strong plates 54 are connected by a connecting plate 55. The top of the connecting plate 55 is located below the bottom wall of the first clamping hole 511. The hook 62 includes a penetration portion 621 and abutment portion 622 connected in sequence. The penetration portion 621 is connected to the cover body 61. The bottom end of the abutment portion 622 is located below the bottom end of the penetration portion 621. After the hook 62 passes through the first clamping hole 511, the bottom end of the abutment portion 622 abuts on the connecting plate 55. The penetration portion 621 cooperates with the first clamping hole 511 to buckle one side of the motor cover 6 and one side of the motor bracket 5 together.

[0075] The up-down direction is consistent with that in FIG1 , FIG2 and FIG4 .

[0076] It should be noted that, in some other embodiments, the structure for snapping the motor cover 6 and the motor bracket 5 together may also be the cooperation of two hooks, or the cooperation of a buckle and a slot. Here, there is no specific limitation on the snap-fit ​​structure connecting the motor cover 6 and the motor bracket 5.

[0077] Please continue to refer to Figures 11 to 13. Figure 11 is a schematic diagram of the three-dimensional structure of another embodiment of the motor cover, motor bracket, and motor in the indoor unit provided by an embodiment of the present application. Figure 12 is a schematic diagram of the planar structure of Figure 11. Figure 13 is an exploded view of Figure 11. As shown in Figures 11 to 13, in another embodiment, opposite sides of the motor cover 6 and opposite sides of the motor bracket 5 in the width direction of the indoor unit 10 can be detachably connected via connectors 8.

[0078] Please continue to refer to Figures 14 to 16. Figure 14 is a schematic diagram of the structure of the motor bracket and motor cover in the embodiment corresponding to Figure 5. Figure 15 is a cross-sectional view of Figure 14 along the CC direction. Figure 16 is an enlarged schematic diagram of the partial structure at point D in Figure 15. In order to detachably connect the motor cover 6 and the motor bracket 5 along one or either side of the width direction of the indoor unit 10 via the connector 8, it is necessary to define a connecting hole 63 in the motor cover 6 and a plug hole 56 coaxial with the connecting hole 63 in the motor bracket 5. Part of the structure of the connector 8 can slide along the connecting hole 63 and the plug hole 56 and insert into the connecting hole 63 and the plug hole 56 to fix the motor cover 6 and the motor bracket 5 relative to each other.

[0079] Please continue to refer to Figures 17 to 19. Figure 17 is a schematic diagram of the structure of the motor bracket and motor cover in the embodiment corresponding to Figure 14. Figure 18 is a cross-sectional view of Figure 17 along the EE direction. Figure 19 is an enlarged schematic diagram of the partial structure at point F in Figure 18. As shown in the figures, in order to provide the above-mentioned connection hole 63 and plug hole 56, in some optional embodiments, a first connection ear 57 can be provided on the side of the bracket body 51 facing the motor cover 6, and a second connection ear 64 can be provided on the side of the cover body 61 facing the motor bracket 5. The first connection ear 57 and the second connection ear 64 are stacked in the axial direction of the motor 4, that is, in the longitudinal direction of the indoor unit 10. The plug hole 56 is provided on the first connection ear 57, and the connection hole 63 is provided on the second connection ear 64.

[0080] In some specific embodiments, the connecting hole 63 and the plug hole 56 can both be round holes. Here, the shapes of the connecting hole 63 and the plug hole 56 are not specifically limited.

[0081] Please continue to refer to Figure 20, which is a schematic diagram of the three-dimensional structure of the connector in the indoor unit provided by an embodiment of the present application. As shown in Figure 20, in some embodiments, the connector 8 includes an operating portion 81 and a plug portion 82. The plug portion 82 is connected to the operating portion 81; the plug portion 82 can be slidably inserted into the connecting hole 63 and the plug hole 56 to lock the motor cover 6 and the motor bracket 5. At least a portion of the operating portion 81 is exposed outside the motor cover 6, so as to be exposed at the bottom of the indoor unit 10.

[0082] In some specific embodiments, the plug-in portion 82 may be a plug-in post, and the axial direction of the plug-in post is consistent with the axial direction of the motor 4, that is, the axial direction of the plug-in post is consistent with the length direction of the indoor unit 10. In order to improve the connection reliability between the motor bracket 5 and the motor cover 6, two plug-in portions 82 may be provided at intervals along the axial direction of the motor 4, and the two plug-in portions 82 are oriented in the same direction, wherein the same direction can be understood as the insertion ends of the plug-in portions 82 are oriented in the same direction.

[0083] In order to facilitate the insertion of the plug-in portion 82 into the connecting hole 63 and the plug-in hole 56 , the radial dimension of the end of the plug-in portion 82 is smaller than the radial dimension of the connecting hole 63 , and the radial dimension of the end of the plug-in portion 82 is smaller than the radial dimension of the plug-in hole 56 .

[0084] When the connecting hole 63 and the inserting hole 56 are both circular holes, the outer peripheral surface of the inserting portion 82 is a revolving surface so that the outer contour of the inserting portion 82 matches the shape of the connecting hole 63 and the shape of the inserting hole 56 .

[0085] Furthermore, in order to facilitate the operation of the operating part 81, that is, to facilitate the pushing and pulling of the connecting member 8, in some optional embodiments, the operating part 81 may include a sliding section 811 and a toggle section 812 connected together, and the plug-in part 82 is connected to the sliding section 811; the sliding section 811 is slidably matched with the motor cover 6, and at least part of the structure of the toggle section 812 is exposed outside the motor cover 6.

[0086] When there are two operating parts 81 mentioned above, in order to connect the two operating parts 81 to the sliding section 811, in some optional embodiments, the sliding section 811 may include a sliding body 8111 and two third connecting ears 8112, the sliding body 8111 is connected to the top of the toggle section 812, the two third connecting ears 8112 are connected to the top of the sliding body 8111, the two third connecting ears 8112 are arranged corresponding to the two plug-in parts 82, and the plug-in part 82 is arranged on one side of the corresponding third connecting ear 8112 along the length direction of the indoor unit 10, and the two plug-in parts 82 are arranged on the same side of the two third connecting ears 8112.

[0087] In order to facilitate the operation of the connecting member 8, the weight of the connecting member 8 can be reduced. Therefore, in this embodiment, two weight-reducing holes 8113 can be set on the sliding body 8111. In this way, the weight of the connecting member 8 can be reduced to facilitate the operation or assembly of the connecting member 8.

[0088] It should be noted that, in some specific embodiments, the two weight-reducing holes 8113 are spaced apart along the width direction of the indoor unit 10 , and the toggle section 812 is located between the two weight-reducing holes 8113 .

[0089] Please continue to refer to Figures 21 and 22. Figure 21 is a schematic diagram of the matching relationship between the motor cover and the connector in the embodiment corresponding to Figure 5, and Figure 22 is an enlarged schematic diagram of the local structure at G in Figure 17. Some errors are inevitable in the process of processing the motor bracket 5, the motor cover 6 and the connector 8. Therefore, when the gaps between the plug-in portion 82 and the connecting hole 63, and between the plug-in portion 82 and the plug-in hole 56 are large, the stability of the connector 8 during movement will be reduced. Therefore, in order to improve the stability of the connector 8 during movement, a guide structure can be provided on the motor cover 6.

[0090] For example, a sliding space 611 can be formed on the cover body 61 of the motor cover 6, the sliding section 811 slides along the sliding space 611, and the extension direction of the sliding space 611 is consistent with the axial direction of the motor 4. Specifically, the sliding body 8111 is located in the sliding space 611, and the sliding body 8111 slides with the sliding space 611.

[0091] Since two connection methods of the motor cover 6 and the motor bracket 5 are provided in this embodiment, there are some differences in the matching methods between the connecting member 8 and the motor cover 6 for the two connection methods, which will be introduced one by one below.

[0092] Continuing with Figures 23 and 24 , Figure 23 is a schematic diagram of the three-dimensional structure of the motor cover in the embodiment corresponding to Figure 5 , and Figure 24 is a schematic diagram of the three-dimensional structure of Figure 23 from another perspective. When one side of the motor cover 6 is snap-connected to one side of the motor bracket 5 , and the other side of the motor cover 6 is detachably connected to the other side of the motor bracket 5 via the connector 8 , a sliding space 611 is formed on the side of the cover 61 facing the motor bracket 5 , and a first through-hole 6111 is defined on the bottom wall of the sliding space 611 , through which the toggle section 812 passes.

[0093] Specifically, a side panel 65 is connected to one side of the cover 61, and the surface of the side panel 65 forms one side wall of the sliding space 611. A short guide plate 66 can be provided on the opposite side of the side panel 65, and the surface of the short guide plate 66 forms the other side wall of the sliding space 611. In this way, the sliding body 8111 can slide in conjunction with the side panel 65, and the sliding body 8111 can also slide in conjunction with the short guide plate 66.

[0094] Please continue to refer to Figures 25 and 26. Figure 25 is a schematic diagram of the three-dimensional structure of the motor cover in the embodiment corresponding to Figure 14, and Figure 26 is a schematic diagram of the three-dimensional structure of Figure 25 from another perspective. When the opposite sides of the motor cover 6 and the opposite sides of the motor bracket 5 are detachably connected via the connectors 8, the sliding space 611 is provided on the side of the motor cover 6 facing away from the motor bracket 5. In this case, the sliding space 611 can be a sliding groove formed on the motor cover 6; the toggle section 812 is located in the sliding space 611, and two second through holes 6112 are provided on the bottom wall of the sliding space 611. The two second through holes 6112 are provided in a one-to-one correspondence with the two third connecting ears 8112. The third connecting ears 8112 pass through the second through holes 6112 and connect with the corresponding plug-in portion 82.

[0095] When one side of the motor cover 6 is snap-connected to one side of the motor bracket 5, and the other side of the motor cover 6 is detachably connected to the other side of the motor bracket 5 through the connecting member 8, since the sliding space 611 does not stop the connecting member 8 in the moving direction of the connecting member 8, a corresponding limiting structure 30 needs to be set to limit the sliding stroke of the connecting member 8.

[0096] Therefore, in some optional embodiments, the aforementioned limiting structure 30 includes a limiting protrusion 8114 and a limiting block 612. The limiting protrusion 8114 is disposed on the sliding body 8111, and the limiting block 612 is disposed on a sidewall of the sliding space 611. When the connector 8 connects the motor cover 6 and the motor bracket 5, the limiting protrusion 8114 abuts against one side of the limiting block 612 along the axial direction of the motor 4. Since the sliding space 611 has two opposing sidewalls, the limiting block 612 can be disposed on the sidewall formed by the side plate 65, and the limiting block 612 can be disposed on the opposite side of the side plate 65. The limiting block 612 located on the opposite side of the side plate 65 can be directly connected to the cover body 61, and the limiting block 612 can be located between the short guide plate 66 and one of the second connecting ears 64.

[0097] It should be noted that when the opposite sides of the motor cover 6 and the opposite sides of the motor bracket 5 are detachably connected through the connecting pieces 8, although the two end walls of the sliding space 611 along its extension direction can limit the moving stroke of the connecting piece 8, in order to further improve the stability of the connecting piece 8 during the movement, the above-mentioned limit blocks 612 can be respectively provided on the two opposite side walls of the sliding space 611 to limit the moving stroke of the connecting piece 8.

[0098] In order to facilitate the operation of the connecting member 8, a corresponding stop structure can be provided to stop the connecting member 8, so as to prevent the connecting member 8 from being separated from the motor cover 6 when the motor cover 6 and the motor bracket 5 are not connected.

[0099] Therefore, in some specific embodiments, a stop portion 613 can be provided on the side wall of the sliding space 611; the stop portion 613 is used to stop the operating portion 81 in the direction in which the connecting member 8 is separated from the motor cover 6. In this embodiment, the stop portion 613 is used to stop the operating portion 81 in the length direction of the indoor unit 10.

[0100] Specifically, as shown in Figure 24, when one side of the motor cover 6 is snap-connected to one side of the motor bracket 5, and the other side of the motor cover 6 is detachably connected to the other side of the motor bracket 5 through the connecting piece 8, the side panel 65 and the opposite side of the side panel 65 are provided with a stop portion 613, and two spaced-apart stop portions 613 are provided on each side. On the side panel 65, the limit block 612 is located between the two stop portions 613; on the opposite side of the side panel 65, the guide short plate 66 is connected between a second connecting ear 64 and a stop portion 613, and the other stop portion 613 is connected to the other second connecting ear 64, so that the limit block 612 is located between the two stop portions 613.

[0101] As shown in Figure 25, when the opposite sides of the motor cover 6 and the opposite sides of the motor bracket 5 are detachably connected through the connecting parts 8, two stop parts 613 are provided on the two oppositely arranged side walls of the sliding space 611, and on the same side wall, the limit block 612 is located between the two stop parts 613.

[0102] In addition, since the limiting protrusion 8114 is protruding relative to the sliding body 8111, in order to enable the limiting block 612 to stop the limiting protrusion 8114, a recessed installation cavity 6113 can be set on the side wall of the sliding space 611, and the limiting block 612 can be set on the bottom wall of the installation cavity 6113.

[0103] Among them, the stop portion 613 has a stop surface 6131. ​​When one side of the motor cover 6 is snap-connected with one side of the motor bracket 5, and the other side of the motor cover 6 is detachably connected with the other side of the motor bracket 5 through the connecting piece 8, the stop surface 6131 stops above the sliding body 8111; when the opposite two sides of the motor cover 6 and the opposite two sides of the motor bracket 5 are detachably connected through the connecting piece 8, the stop surface 6131 stops below the sliding body 8111.

[0104] In some embodiments, since the relative positions of the motor cover 6 and the motor bracket 5 in the axial direction of the motor 4 are not determined, a positioning structure 40 can be set between the motor bracket 5 and the motor cover 6 to limit the relative positions of the motor bracket 5 and the motor cover 6 in the axial direction of the motor 4.

[0105] Please continue to refer to Figures 27 to 29. Figure 27 is a schematic diagram of another structure of the motor bracket and motor cover in the embodiment corresponding to Figure 5. Figure 28 is a cross-sectional view of Figure 27 along the HH direction. Figure 29 is an enlarged schematic diagram of the partial structure at point I in Figure 28. As shown in Figures 27 to 29, the positioning structure 40 may include a protrusion 9 and a positioning portion 20; the protrusion 9 is provided on one of the motor bracket 5 and the motor cover 6, and the positioning portion 20 is provided on the other of the motor bracket 5 and the motor cover 6, and the positioning portion 20 is stopped on one side of the protrusion 9 along the axial direction of the motor 4.

[0106] Please continue to refer to Figure 30, which is a schematic diagram of the three-dimensional structure of the motor bracket in the embodiment corresponding to Figure 5. The bracket body 51 is formed with a motor slot 512 into which part of the power supply unit 4 extends, and the two opposite side walls of the motor slot 512 can form the above-mentioned protrusions 9.

[0107] As shown in Figure 24, the positioning portion 20 can be a concave cavity 67 formed on the top of the cover body 61, the bottom surface of the protrusion 9 can abut against one side wall of the concave cavity 67, and the other side wall of the concave cavity 67 can abut against the side of the protrusion 9 away from the central axis of the motor slot 512.

[0108] In some other embodiments, the protrusion 9 and the positioning portion 20 may also be other structures. Here, other structures of the protrusion 9 and the positioning portion 20 are not limited.

[0109] In this embodiment, in order to facilitate the connection of the motor bracket 5 to the first shell 11, a detachable connection method can be adopted between the motor bracket 5 and the first shell 11. For example, a threaded connection method is adopted on one side of the width direction of the indoor unit 10, and a snap connection method is adopted on the other side of the width direction of the indoor unit 10.

[0110] Specifically, please continue to refer to Figures 31 to 33. Figure 31 is a schematic diagram of the connection structure between the motor bracket and the first housing in the indoor unit provided by an embodiment of the present application. Figure 32 is a cross-sectional view of Figure 31 along the JJ direction. Figure 33 is an enlarged schematic diagram of the partial structure at K in Figure 32. Specifically, the bracket body 51 is connected to one side along the width direction of the indoor unit 10 with an extension portion 58. The extension portion 58 has a threaded hole 581 formed in the extension portion 58. A screw passing through the threaded hole 581 can connect one side of the motor bracket 5 to the first housing 11. On the opposite side of the extension portion 58, two latching protrusions 59 are connected to the bracket body 51. The two latching protrusions 59 are spaced apart along the length of the indoor unit 10. The first housing 11 has second latching holes 111 formed in the second latching holes 111 for the latching protrusions 59 to pass through. The latching protrusions 59 engage with the corresponding second latching holes 111 to connect the other side of the motor bracket 5 to the first housing 11. Specifically, one side of the locking protrusion 59 along the axial direction of the motor 4 has an extended protrusion 591 , and the protrusion 591 passes through the second locking hole 111 and abuts against the surface of the first housing 11 .

[0111] This embodiment further provides a HVAC device, comprising the above-mentioned indoor unit 10 and outdoor unit. The structure of the indoor unit 10 has been described in detail in the above-mentioned embodiment and will not be described in detail here.

Claims

1. An indoor unit, wherein, It includes a housing, a motor bracket, a motor cover and a motor; The motor bracket is connected to the housing, and the motor cover is buckled on the motor bracket and detachably connected to the motor bracket to fix the motor between the motor bracket and the motor cover; Wherein, the motor cover is exposed at the bottom of the indoor unit.

2. The indoor unit according to claim 1, wherein, The motor cover covers a side of the motor bracket facing away from the housing.

3. The indoor unit according to claim 1, wherein, An air duct is formed in the housing, the air duct includes a return air port and a wind wheel cavity connected to each other, and a wind wheel is arranged in the wind wheel cavity and is connected to the motor by transmission; The motor cover is exposed at the return air outlet.

4. The indoor unit according to claim 1, wherein, One side of the motor cover is snap-connected to one side of the motor bracket, and the other side of the motor cover is detachably connected to the other side of the motor bracket via a connecting piece.

5. The indoor unit according to claim 1, wherein, The opposite sides of the motor cover and the opposite sides of the motor bracket are detachably connected via connecting pieces.

6. The indoor unit according to claim 4 or 5, wherein, The motor cover is provided with a connection hole, and the motor bracket is provided with a plug-in hole; A partial structure of the connecting piece can slide along the connecting hole and the plugging hole and be inserted into the connecting hole and the plugging hole to lock the motor cover and the motor bracket.

7. The indoor unit according to claim 6, wherein, The connecting member includes an operating portion and a plug-in portion connected to the operating portion; The plug-in portion can be slidably inserted into the connecting hole and the plug-in hole to relatively fix the motor cover and the motor bracket, and the operating portion is at least partially exposed outside the motor cover to be exposed at the bottom of the indoor unit.

8. The indoor unit according to claim 7, wherein, The operating portion includes a sliding section and a toggle section, and the plug-in portion and the toggle section are both connected to the sliding section; The sliding section is slidably matched with the motor cover, and at least a part of the structure of the toggle section is exposed outside the motor cover.

9. The indoor unit according to claim 8, wherein, A sliding space is formed on the motor cover, and the sliding section slides along the sliding space.

10. The indoor unit according to claim 9, wherein, The sliding space is formed on a side of the motor cover facing the motor bracket; A first through hole for the toggle section to pass through is formed on the bottom wall of the sliding space.

11. The indoor unit according to claim 9, wherein, The sliding space is formed on a side of the motor cover away from the motor bracket; The toggle section is located in the sliding space, and a second through hole for a part of the structure of the sliding section to pass through is opened on the bottom wall of the sliding space, so that the plug-in portion is connected to the sliding section.

12. The indoor unit according to claim 7, wherein, A limiting structure is arranged between the operating portion and the motor cover, and the limiting structure is used to limit the sliding stroke of the connecting member.

13. The indoor unit according to claim 7, wherein, The motor cover comprises a cover body and a stopper connected to the cover body; The stopper is used to stop the operating part in the length direction of the indoor unit.

14. The indoor unit according to any one of claims 1 to 13, wherein, A positioning structure is provided between the motor bracket and the motor cover; The positioning structure is used to limit the relative position of the motor bracket and the motor cover in the axial direction of the motor.

15. The indoor unit according to claim 14, wherein, The positioning structure includes a protruding portion and a positioning portion; The protruding portion is arranged on one of the motor bracket and the motor cover, the positioning portion is arranged on the other of the motor bracket and the motor cover, and the positioning portion is stopped at one side of the protruding portion along the axial direction of the motor.

16. The indoor unit according to any one of claims 1 to 13, wherein, The housing comprises a first housing and a second housing that are buckled together, and the motor bracket is detachably connected to the first housing.

17. A heating, ventilation and air conditioning equipment, wherein, Including the indoor unit according to any one of claims 1 to 16.

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