Heating, ventilation and air-conditioning device outdoor unit, and heating, ventilation and air-conditioning device comprising same

Abstract

A heating, ventilation and air-conditioning device outdoor unit (1), comprising: a housing (100), wherein an outer wall of the housing (100) is provided with an air outlet area (110) and an electrical area (120), and the air outlet area (110) is provided with an air outlet (111); a fan, wherein the fan is arranged in the housing (100) and corresponds to the air outlet (111); a first grille (300), wherein the first grille (300) is arranged on the main body (140) of the housing (100) and shields at least a portion of the air outlet area (110); and a second grille (400), wherein the second grille (400) is detachably arranged on the main body (140) and shields at least a portion of the electrical area (120). By providing a first side plate (150), the heating, ventilation and air-conditioning device outdoor unit (1) defines a relative position between the housing (100) and the second grille (400), and has the advantages of being stable in connection and convenient to maintain.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of air conditioning, and in particular to an HVAC (Heating, Ventilation and Air Conditioning) device outdoor unit and an HVAC device comprising the same.BACKGROUND

[0002] An HVAC device outdoor unit in the related art generally includes a housing and a grille. The housing has an air outlet zone for mounting a fan and an electrical zone for mounting an electrical component. The air outlet zone has an air outlet, and the fan is exposed from the air outlet. The grille is configured to cover the air outlet. The electrical zone is not covered by the grille, which poses a safety hazard.SUMMARY

[0003] Embodiments of the present disclosure provide an HVAC device outdoor unit and an HVAC device comprising the same. By providing a first side plate to limit the relative position between a housing and a second grille, the HVAC device outdoor unit achieves both stable connection and convenient maintenance.

[0004] In a first aspect, the embodiments of the present disclosure provide an HVAC device outdoor unit including a housing, a fan, a first grille, and a second grille. An outer wall of the housing is provided with an air outlet zone and an electrical zone, and the air outlet zone is provided with an air outlet. The fan is disposed in the housing and corresponds to the air outlet. The first grille is disposed on the main body of the housing and covers at least a portion of the air outlet zone. The second grille is detachably disposed on the main body and covers at least a portion of the electrical zone.

[0005] In a second aspect, the embodiments of the present disclosure provide an HVAC device including the above-mentioned HVAC device outdoor unit.BRIEF DESCRIPTION OF THE DRAWINGS

[0006] To describe the technical solutions of the embodiments of the present disclosure or the prior art more clearly, the drawings required for describing the embodiments or the prior art will be briefly introduced below. Apparently, the drawings in the following description are merely some embodiments of the present disclosure. For a person skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts. FIG. 1 is a schematic structural diagram of an HVAC device outdoor unit according to a first embodiment of the present disclosure; FIG. 2 is an exploded view of the HVAC device outdoor unit according to the first embodiment of the present disclosure; FIG. 3 is a schematic structural diagram of a first grille of the HVAC device outdoor unit according to the first embodiment of the present disclosure; FIG. 4 is a partially enlarged schematic diagram of region A in FIG. 3; FIG. 5 is a schematic structural diagram of a second grille of the HVAC device outdoor unit according to the first embodiment of the present disclosure; FIG. 6 is a partially enlarged schematic diagram of region B in FIG. 5; FIG. 7 is the schematic structural diagram of the second grille of the HVAC device outdoor unit according to the first embodiment of the present disclosure from another perspective; FIG. 8 is a partially enlarged schematic diagram of region C in FIG. 7; FIG. 9 is a schematic diagram showing the connection between the second grille, a main body and a first side plate of the HVAC device outdoor unit according to the first embodiment of the present disclosure; FIG. 10 is a schematic diagram showing the connection of the second grille, the main body and the first side plate of the HVAC device outdoor unit according to the first embodiment of the present disclosure from another perspective; FIG. 11 is a partially enlarged schematic diagram of region D in FIG. 10; FIG. 12 is a partially enlarged schematic diagram of region E in FIG. 10; FIG. 13 is a schematic structural diagram of a decorative block of the HVAC device outdoor unit according to the first embodiment of the present disclosure; FIG. 14 is a schematic structural diagram of the decorative block of the HVAC device outdoor unit according to the first embodiment of the present disclosure from another perspective; FIG. 15 is a schematic structural diagram of an HVAC device outdoor unit according to a second embodiment of the present disclosure; FIG. 16 is another schematic structural diagram of the HVAC device outdoor unit according to the second embodiment of the present disclosure; FIG. 17 is a cross-sectional view of the HVAC device outdoor unit according to the second embodiment of the present disclosure; FIG. 18 is a schematic structural diagram of a housing of the HVAC device outdoor unit according to the second embodiment of the present disclosure; FIG. 19 is a partial schematic diagram of a grille of the HVAC device outdoor unit according to the second embodiment of the present disclosure; FIG. 20 is a schematic structural diagram of the grille of the HVAC device outdoor unit according to the second embodiment of the present disclosure from another perspective; and FIG. 21 is a schematic structural diagram of a first limiting structure of the HVAC device outdoor unit according to the second embodiment of the present disclosure.

[0007] Reference numerals in the drawings: housing 100; air outlet zone 110; air outlet 111; electrical zone 120; second plug-in portion 130; main body 140; plug-in sliding slot 141; first side plate 150; plug-in slider 151; second side plate 160; through hole 170; rotation groove 171; surrounding rim 172; avoidance notch 173; positioning block 174; limiting block 175; first limiting protrusion 180; first fixing hole 181; second limiting protrusion 190; first fixing protrusion 1100; first limiting structure 1200; first connecting section 1210; bent section 1220; first limiting section 1230; support section 1240; first grille 300; positioning notch 310; second grille 400; positioning insert 410; first plug-in portion 420; connecting section 421; plug-in section 422; decorative block 430; rotation shaft 431; damping protrusion 432; first damping protrusion 433; second damping protrusion 434; positioning groove 435; first rib 436; inclined surface 437; second rib 440; third rib 441; fixing plate 450; integral grille 500; second limiting structure 510; second connecting section 511; second limiting section 512; third fixing hole 513; third lightening hole 514; third limiting protrusion 520; first lightening hole 521; second fixing protrusion 530; second fixing hole 531; second lightening hole 532.

[0008] The realization of the purpose, functional features and advantages of the present disclosure will be further described with reference to embodiments and the drawings.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0009] To make the purpose, technical solutions, and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described below in detail with reference to the drawings.

[0010] In the following description related to the drawings, the same reference numbers in different drawings represent the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all the implementations consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure, as detailed in the appended claims.

[0011] In the description of the present disclosure, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. For a person skilled in the art, the specific meanings of the above terms in the present disclosure can be understood based on specific situations. In addition, in the description of the present disclosure, unless otherwise stated, "a plurality of" means two or more. The "and / or" used for describing an association relationship between associated objects represents the presence of three relationships. For example, "A and / or B" may represent the presence of A only, the presence of both A and B, and the presence of B only. The character " / " generally indicates an "or" relationship between the elements it connects.

[0012] Unless otherwise defined, all technical and scientific terms used in the present disclosure have the same meaning as commonly understood by a person skilled in the technical field to which the present disclosure belongs. The terms used in the specification herein are used for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The term "and / or" as used herein includes any and all combinations of one or more of related associated items.

[0013] An HVAC device outdoor unit 1 according to an embodiment of the present disclosure will be described below with reference to the drawings.

[0014] As shown in FIG. 1, FIG. 2, and FIG. 9, the HVAC device outdoor unit 1 according to the present disclosure includes a housing 100, a fan, a first grille 300, and a second grille 400.

[0015] An outer wall of the housing 100 is provided with an air outlet zone 110 and an electrical zone 120, and the air outlet zone 110 is provided with an air outlet 111. In some embodiments, the housing 100 includes a main body 140 and a first side plate 150. The main body 140 has a first direction (the direction indicated by arrow A in the drawings) and a second direction (the direction indicated by arrow B in the drawings) that are perpendicular to each other. An outer wall of the main body 140 in the first direction is provided with the air outlet zone 110 and the electrical zone 120, and the air outlet zone 110 is provided with the air outlet 111. The first side plate 150 is detachably connected to a side of the main body 140 in the second direction. The fan is disposed in the housing 100, and is located at (i.e., corresponds to) the air outlet 111. The first grille 300 is arranged on the main body 140 and covers at least a portion of the air outlet zone 110. The second grille 400 is detachably disposed on the main body 140 and covers at least a portion of the electrical zone 120. The first grille 300 and the second grille 400 are arranged along the second direction. In the second direction, the first side plate 150 is located on a side of the second grille 400 facing away from the first grille 300.

[0016] Wherein, when the first side plate 150 is connected to the main body 140, the first side plate 150 abuts against the second grille 400 to limit the second grille 400 in a fixed position. When the first side plate 150 is separated from the main body 140, the second grille 400 is movable between the fixed position and a plug-in position.

[0017] For example, an HVAC device may include at least one of an air conditioner, a multi-split system, a heat pump, a water heater, and a swimming pool machine. The HVAC device can achieve at least one of the functions including heating, ventilation, and air conditioning.

[0018] According to the HVAC device outdoor unit 1 of the embodiments of the present disclosure, the housing 100 may have a top wall, a bottom wall, and a side wall connected between the top wall and the bottom wall. There may be a plurality of side walls. The top wall, the bottom wall, and the side walls cooperate to enclose an installation cavity in which the fan is disposed. In practical application, the bottom wall of the HVAC device outdoor unit 1 is usually disposed on a mounting surface, and one outer wall of the housing 100 is provided with the air outlet zone 110 and the electrical zone 120. The above-mentioned outer wall of the housing 100 may correspond to the side wall or the top wall, but the present disclosure is not limited thereto.

[0019] The air outlet zone 110 is provided with the air outlet 111, and the fan is disposed in the installation cavity of the housing 100 and located at the air outlet 111. The fan can drive air to exchange heat with a heat exchanger of the HVAC device outdoor unit 1, and then guide the heat-exchanged air to be discharged out of the housing 100 through the air outlet 111. Wherein the electrical zone 120 may be a mechanical cavity, the electrical zone 120 may be provided with electrical structures, for example, a service panel, a controller, or a compressor and other electrical components, for operations such as maintenance on the HVAC device outdoor unit 1.

[0020] In addition, the first grille 300 is disposed on the housing 100 and covers at least a portion of the air outlet zone 110. The second grille 400 is detachably disposed on the housing 100 and covers at least a portion of the electrical zone 120.

[0021] It should be noted that the first grille 300 covering at least a portion of the air outlet zone 110 means that at least a portion of an orthographic projection of the air outlet zone 110 onto a plane in which the first grille 300 lies is located within an area enclosed by the outer contour of the first grille 300, and an orthographic projection of an edge of the air outlet zone 110 onto the plane in which the first grille 300 lies may be located outside the area enclosed by the outer contour of the first grille 300.

[0022] The second grille 400 covering at least a portion of the electrical zone 120 means that at least a portion of an orthographic projection of the electrical zone 120 onto a plane in which the second grille 400 lies is located within an area enclosed by the outer contour of the second grille 400, and an orthographic projection of an edge of the electrical zone 120 onto the plane in which the second grille 400 lies may be located outside the area enclosed by the outer contour of the second grille 400.

[0023] By separately arranging the first grille 300 and the second grille 400, the stable connection between the first grille 300 and the housing 100 remains unaffected, regardless of whether the second grille 400 is connected to the housing 100. The first grille 300 can reliably cover at least a portion of the air outlet zone 110. Under normal circumstances, the second grille 400 is connected to the housing 100, external objects and personnel cannot come into contact with the electrical zone 120, thereby ensuring the normal operation of the electrical components in the electrical zone 120, reducing the probability of damage to the electrical components in the electrical zone 120, and preventing personnel from being injured.

[0024] When the HVAC device requires repair, inspection and maintenance, commissioning, or upgrading, the second grille 400 can be detached from the housing 100. At this time, maintenance personnel can operate on the electrical zone 120, enabling the repair, inspection and maintenance, commissioning, and upgrading of the HVAC device. Moreover, since the first grille 300 covers the air outlet zone 110, it is difficult for maintenance personnel and external objects to contact the fan regardless of whether the fan stops working, which not only prevents the fan from being damaged due to collision during rotation, but also prevents personnel from being scratched when the fan is rotating. Therefore, during the processes of repairing, inspecting and maintaining, commissioning, and upgrading the HVAC device, the fan can still remain in a working state, thereby ensuring the continuity of the operation of the HVAC device. Moreover, maintenance personnel can observe the running status of the fan in real time, thereby providing high feedback timeliness, and making the repair, inspection and maintenance, commissioning, and upgrading of the HVAC device more accurate and rapid.

[0025] It should be noted that the electrical zone 120 may be provided with additional structures such as a cover plate. After the second grille is detached from the housing 100, the cover plate of the electrical zone 120 is exposed. At this time, the cover plate can be detached, and then the electrical components in the electrical zone 120 can be operated, further improving safety. Alternatively, the electrical zone 120 may not be additionally provided with a cover plate. After the second grille 400 is detached from the housing 100, the electrical components in the electrical zone 120 can be directly operated, thereby reducing operation steps and enhancing the operational convenience.

[0026] The first side plate 150 is arranged such that, when the first side plate 150 is connected to the main body 140, the first side plate 150 extends beyond the above-mentioned outer wall of the main body 140, and when the second grille 400 moves relative to the main body 140, the second grille 400 abuts against the first side plate 150 and thus the second grille 400 cannot be separated from the housing 100, thereby avoiding situations such as accidental separation between the second grille 400 and the housing 100 during transportation. When the HVAC device outdoor unit 1 needs repair, maintenance or upgrading or the like, the first side plate 150 can first be separated from the main body 140, thereby allowing the second grille 400 to move relative to the main body 140, realizing separation between the second grille 400 and the main body 140, thereby enabling operations on the electrical zone 120.

[0027] In this way, the first side plate 150 and the second grille 400 together provide dual protection for the electrical zone 120, further ensuring that the second grille 400 effectively covers the electrical zone 120, thereby enhancing safety.

[0028] For example, as shown in FIG. 10 and FIG. 12, a side of the first side plate 150 facing the main body 140 is provided with a plug-in slider 151. The main body 140 is provided with a plug-in sliding slot 141. The plug-in slider 151 is inserted into the plug-in sliding slot 141 and is slidable relative to the plug-in sliding slot 141 in the vertical direction. When assembling the first side plate 150 and the main body 140, the plug-in slider 151 is first inserted into the plug-in sliding slot 141, and then the first side plate 150 is moved upwards (or downwards) until the plug-in slider 151 abuts against an inner surface of the main body 140, at which time the first side plate 150 and the main body 140 are fixed relative to each other in the horizontal direction, and finally the first side plate 150 and the main body 140 may be fixed together by a threaded fastener.

[0029] Thus, by providing the first side plate 150 to limit the relative position between the housing 100 and the second grille 400, the HVAC device outdoor unit 1 according to the embodiments of the present disclosure achieves both stable connection and convenient maintenance.

[0030] As shown in FIG. 3 to FIG. 5 and FIG. 7, one of the first grille 300 and the second grille 400 is provided with a positioning notch 310, and the other is provided with a positioning insert 410, the positioning insert 410 is configured to be inserted into the positioning notch 310. Wherein the positioning insert 410 may be constructed on the second grille 400, the positioning notch 310 may be constructed on the first grille 300. In this way, pre-positioning between the first grille 300 and the second grille 400 can be achieved, thereby improving the assembly accuracy of the HVAC device outdoor unit 1 and reducing the difficulty of assembly.

[0031] As shown in FIG. 2, FIG. 7, FIG. 10, and FIG. 11, one of the second grille 400 and the housing 100 is provided with a first plug-in portion 420, and the other is provided with a second plug-in portion 130. The second grille 400 is movable relative to the housing 100 in the horizontal direction between the plug-in position and the fixed position.

[0032] Wherein, when the second grille 400 is in the plug-in position, the first plug-in portion 420 and the second plug-in portion 130 are connected in a pluggable manner. When the second grille 400 is in the fixed position, the first plug-in portion 420 and the second plug-in portion 130 are connected in a non-pluggable manner.

[0033] When the first side plate 150 is connected to the main body 140, the first side plate 150 limits the second grille 400 in the fixed position. When the first side plate 150 is separated from the main body 140, the second grille 400 is movable between the plug-in position and the fixed position.

[0034] For example, the first plug-in portion 420 is provided on the second grille 400. During the assembly process, the first plug-in portion 420 is first inserted into the second plug-in portion 130. At this time, the second grille 400 is in the plug-in position, and then the second grille 400 is pushed to move in the horizontal direction to the fixed position. At this time, the first plug-in portion 420 cannot be pulled out from the second plug-in portion 130, and the relative position between the second grille 400 and the main body 140 is fixed. During the disassembly process, the second grille 400 is first moved horizontally from the fixed position to the plug-in position, and then the first plug-in portion 420 is pulled out from the second plug-in portion 130, thereby achieving separation between the second grille 400 and the main body 140.

[0035] By arranging the first plug-in portion 420 and the second plug-in portion 130, the connection and separation between the second grille 400 and the main body 140 can be achieved. Moreover, the second grille 400 moves in the horizontal direction, that is to say, there is no relative movement between the second grille 400 and the main body 140 in the vertical direction, or the range of relative movement between the second grille 400 and the main body 140 is relatively small, thus there is no relative movement between the first plug-in portion 420 and the second plug-in portion 130 in the vertical direction, or the range of relative movement between the first plug-in portion 420 and the second plug-in portion 130 is relatively small. Therefore, the engagement between the first plug-in portion 420 and the second plug-in portion 130 can support the second grille 400 in the vertical direction to counteract the gravity of the second grille 400, so that the second grille 400 and the main body 140 are not likely to move relative to each other under the action of gravity, thereby facilitating assembly between the second grille 400 and the housing 100.

[0036] As shown in FIG. 2, FIG. 7, FIG. 10, a plurality of first plug-in portions 420 are provided, and at least three of the plurality of first plug-in portions 420 are not collinear. A plurality of second plug-in portions 130 are provided, and at least three of the plurality of second plug-in portions 130 are not collinear. The plurality of first plug-in portions 420 and the plurality of second plug-in portions 130 are connected in one-to-one correspondence.

[0037] It should be noted that at least three of the plurality of first plug-in portions 420 being not collinear means that the three first plug-in portions 420 form a triangle. At least three of the plurality of second plug-in portions 130 being not collinear means that the three second plug-in portions 130 form a triangle.

[0038] In this way, a multi-point connection can be formed between the second grille 400 and the housing 100, thereby enhancing the connection strength between the second grille 400 and the housing 100. Furthermore, since the plurality of connection points between the second grille 400 and the housing 100 are not collinear, the probability of relative deflection between the second grille 400 and the housing 100 can be reduced, and the relative position between the second grille 400 and the housing 100 is more stable.

[0039] As shown in FIG. 11, the first plug-in portion 420 includes a connecting section 421 and a plug-in section 422.

[0040] The connecting section 421 is connected to a side of the second grille 400 facing the main body 140, and extends towards the main body 140. The plug-in section 422 is connected to the connecting section 421, and extends horizontally from the connecting section 421 towards the first grille 300. Wherein, the second plug-in portion 130 is a slot, and is constructed on a side of the main body 140 facing the second grille 400. When the second grille 400 is in the plug-in position, the plug-in section 422 corresponds in position to the opening of the slot. When the second grille 400 is in the fixed position, the plug-in section 422 is staggered from the opening of the slot.

[0041] For example, a connecting rib may be provided between the connecting section 421 and a side of the second grille 400 facing the main body 140, to enhance the bending strength between the connecting section 421 and the second grille 400. The plug-in section 422 and the connecting section 421 may be arranged perpendicular to each other, forming an "L" shape. A connecting rib may also be provided between the connecting section 421 and a side of the plug-in section 422 facing away from the main body 140, to enhance the bending strength between the connecting section 421 and the plug-in section 422.

[0042] Furthermore, the cross-sectional area of the opening of the slot is greater than the cross-sectional area of the plug-in section 422, so that the plug-in section 422 can be inserted into the slot via the opening of the slot so that the second grille 400 is in the plug-in position, and then the connecting section 421 can be moved horizontally in the opening of the slot. When the second grille 400 is in the fixed position, the plug-in section 422 is staggered from the opening of the slot, at this time, the plug-in section 422 cannot be pulled out from the slot thereby fixing the relative position between the second grille 400 and the housing 100.

[0043] As shown in FIG. 2, the housing 100 further includes a second side plate 160 and a first fixing member.

[0044] The main body 140 further has a third direction (the direction indicated by arrow C in the drawings), wherein the first direction, the second direction and the third direction are perpendicular to each other. The second side plate 160 is located on a side of the main body 140 in the third direction, and the first fixing member is inserted through an outer wall of the main body 140 and the second side plate 160. Wherein, when the second grille 400 is connected to the main body 140, the first fixing member corresponds in position to the second grille 400. When the second grille 400 is separated from the main body 140, the first fixing member is exposed.

[0045] For example, after the HVAC device outdoor unit 1 is installed, the first direction may be a direction perpendicular to a wall surface. The above-mentioned outer wall may be an outer wall of the main body 140 facing away from the wall surface. That is to say, the outer wall of the main body 140 facing away from the wall surface has the air outlet zone 110 and the electrical zone 120. The second direction may be a horizontal direction parallel to the wall surface. That is to say, the first side plate 150 is arranged on a side surface of the main body 140 in the horizontal direction. The third direction may be a vertical direction. The second side plate 160 is arranged on the upper side of the main body 140. The first fixing member may be a threaded fastener such as a bolt or a screw.

[0046] When the second grille 400 is connected to the main body 140, the second grille 400 can shield the first fixing member to a certain extent, so that the first fixing member cannot be easily detached, preventing the first fixing member from being detached by mistake. When the HVAC device outdoor unit 1 needs to be repaired, in some cases, the second side plate 160 needs to be detached for repair from the top of the HVAC device outdoor unit 1. Since the second grille 400 is detachably connected with the main body 140, after the second grille 400 is detached from the main body 140, the first fixing member can be easily detached, thereby ensuring convenient detachment between the main body 140 and the second side plate 160, and achieving both safety and convenient disassembly and assembly.

[0047] As shown in FIG. 3 to FIG. 5, at least one of the first grille 300 and the second grille 400 is provided with a through hole 170, which corresponds in position to the first fixing member.

[0048] It should be noted that the second side plate 160 may be connected to the main body 140 by a plurality of first fixing members. The plurality of first fixing members are spaced apart along the second direction. Some of the plurality of first fixing members correspond in position to the first grille 300, and others of the plurality of first fixing members correspond in position to the second grille 400.

[0049] For example, only the first grille 300 is provided with the through hole 170, or only the second grille 400 is provided with the through hole 170, or each of the first grille 300 and the second grille 400 is provided with a through hole 170.

[0050] In this way, without detaching the first grille 300 and the second grille 400, the first fixing member corresponding to the through hole 170 can also be installed or detached through the through hole 170, thereby greatly reducing the difficulty of assembling and disassembling the second side plate 160 and the main body 140.

[0051] As shown in FIG. 7, FIG. 8, FIG. 13, and FIG. 14, the HVAC device outdoor unit 1 further includes a decorative block 430 rotatably connected to a wall of the through hole 170 between an open position and a closed position. Wherein, when the decorative block 430 is in the open position, the first fixing member is exposed from the through hole 170. When the decorative block 430 is in the closed position, the decorative block 430 covers and closes the through hole 170 to cover the first fixing member.

[0052] That is, when the decorative block 430 is in the open position, the through hole 170 is not covered by the decorative block 430, and a user can install or detach the first fixing member corresponding to the through hole 170 via the through hole 170. When the decorative block 430 is in the closed position, it can cover and close the through hole 170, and the user cannot observe the first fixing member through the through hole 170. On one hand, the first fixing member will not be directly contacted, which improves safety. On the other hand, in rainy or snowy weather, rain or snow is not likely to contact the first fixing member, thereby reducing the corrosion and aging rate of the first fixing member due to moisture, and prolonging the service life of the first fixing member. In addition, the appearance of the HVAC device outdoor unit 1 is neater.

[0053] As shown in FIG. 8, FIG. 13, and FIG. 14, one of the decorative block 430 and the wall of the through hole 170 is provided with a rotation shaft 431, and the other is provided with a rotation groove 171. The rotation shaft 431 is rotatable in the rotation groove 171, and extends in the third direction. Wherein, the rotation shaft 431 is located on the left side of the through hole 170, that is, the rotational axis of the decorative block 430 is located on the left side of the decorative block 430, and the range of movement of the right side of the decorative block 430 relative to the wall of the through hole 170 is larger. Thus, it better conforms to ergonomics in terms of force application, making it convenient for an operator to switch the decorative block 430 between the open position and the closed position.

[0054] As shown in FIG. 8, FIG. 13, and FIG. 14, one of an outer surface of the decorative block 430 and the wall of the through hole 170 is provided with a damping protrusion 432. During rotation of the decorative block 430, the other of the outer surface of the decorative block 430 and the wall of the through hole 170 contacts the damping protrusion, generating a frictional damping force.

[0055] That is, the force applied to the decorative block 430 must be greater than the frictional damping force to drive the decorative block 430 from the open position to the closed position, or from the closed position to the open position. This prevents the decorative block 430 from accidentally moving when subjected to a vibration force or other non-human external forces, ensuring that the decorative block 430 can rotate only when an operator applies a force to the decorative block 430.

[0056] As shown in FIG. 8, FIG. 13, and FIG. 14, when the damping protrusion 432 is provided on the outer surface of the decorative block 430, a plurality of damping protrusions 432 are provided. The plurality of damping protrusions 432 include a first damping protrusion 433 and a second damping protrusion 434 spaced apart along the second direction.

[0057] In this way, the damping force applied to the decorative block 430 is uniformly distributed along the second direction, which can improve the stability of the relative position between the decorative block 430 and the through hole 170, further preventing the decorative block 430 from being accidentally opened or closed.

[0058] As shown in FIG. 8, FIG. 13, and FIG. 14, a plurality of first damping protrusions 433 and a plurality of second damping protrusions 434 are provided. The first damping protrusions 433 are respectively disposed on opposite two sides of the outer surface of the decorative block 430 in the third direction. The second damping protrusions 434 are respectively disposed on opposite two sides of the outer surface of the decorative block 430 in the third direction.

[0059] In this way, the decorative block 430 is subjected to uniform force on the opposite two sides in the third direction, which can avoid the problem of deflection of the decorative block 430 during rotation, ensuring that the rotation of the decorative block 430 is more stable.

[0060] As shown in FIG. 14, the first damping protrusion 433 is closer to the rotational axis of the decorative block 430 than the second damping protrusion 434. When the decorative block 430 is in the closed position, a distance between the wall of the through hole 170 and the first damping protrusion 433 in the first direction is smaller than a distance between the wall of the through hole 170 and the second damping protrusion 434 in the first direction, so that during the rotation of the decorative block from the closed position to the open position, the first damping protrusion 433 contacts the wall of the through hole earlier than the second damping protrusion 434.

[0061] In this way, during the rotation of the decorative block 430 from the closed position to the open position, the frictional damping force applied to the decorative block 430 gradually increases from small to large. Thus, it can not only ensure that the decorative block 430 undergoes sufficient frictional damping force during rotation to effectively prevent the decorative block 430 from accidentally opening, but also reduce the force exerted by the operator during the entire rotation process, making it more labor-saving for the operator.

[0062] As shown in FIG. 7 and FIG. 8, the wall of the through hole 170 includes a surrounding rim 172.

[0063] The surrounding rim 172 is disposed on a side of at least one of the first grille 300 and the second grille 400 facing the housing 100. The surrounding rim 172 surrounds the through hole 170, and is provided with an avoidance notch 173. When the decorative block 430 is in the closed position, the damping protrusion 432 is located in the avoidance notch 173.

[0064] By providing the avoidance notch 173, when the decorative block 430 is in the closed position, the damping protrusion 432 can be located within the avoidance notch 173, thereby avoiding continuous frictional damping force between the decorative block 430 and the wall of the through hole 170. This reduces the probability of damage to the wall of the through hole 170 and the decorative block 430 due to force, and prolongs the service lives of the through hole 170 and the decorative block 430.

[0065] In some embodiments of the present disclosure, the avoidance notch 173 may communicate with the rotation groove 171. During the rotation of the decorative block 430 from the closed position to the open position, the rotation shaft 431 can move from the rotation groove 171 into the avoidance notch 173 to enlarge the movement range of the decorative block 430.

[0066] As shown in FIG. 5, FIG. 6, FIG. 13 and FIG. 14, one of the wall of the through hole 170 and the outer surface of the decorative block 430 is provided with a positioning block 174, and the other is provided with a positioning groove 435. When the decorative block 430 is in the closed position, the positioning block 174 is located in the positioning groove 435.

[0067] In this way, during the movement of the decorative block 430 from the open position to the closed position, the positioning block 174 gradually enters the positioning groove 435, and the positioning block 174 can abut against a groove wall of the positioning groove 435, thereby positioning the decorative block 430 in the closed position, preventing the decorative block 430 from being too close to the housing 100, and ensuring that the decorative block 430 effectively closes the through hole 170 and effectively covers the first fixing member.

[0068] As shown in FIG. 5, FIG. 6, FIG. 13, and FIG. 14, a plurality of positioning grooves 435 are provided, and the plurality of positioning grooves 435 are provided on opposite two sides of the decorative block 430 in the third direction. A plurality of positioning blocks 174 are provided, and the plurality of positioning blocks 174 are provided on opposite two side walls of the through hole 170 in the third direction. In this way, during the movement of the decorative block 430 from the open position to the closed position, the decorative block 430 is subjected to uniform force in the third direction, preventing problems such as deflection of the decorative block 430.

[0069] In addition, the cross-sectional area of each positioning block 174 gradually decreases from the closed position to the open position. The positioning block 174 can play a guiding role. An end of the positioning block 174 facing away from the housing 100 can be inserted more easily into the positioning groove 435, preventing the positioning block 174 from colliding with the groove wall of the positioning groove 435, and making the rotation of the decorative block 430 smoother.

[0070] As shown in FIG. 5, FIG. 6, FIG. 13 and FIG. 14, the wall of the through hole 170 is provided with a limiting block 175. In the second direction, the limiting block 175 is located on a side of the through hole 170 away from the rotational axis of the decorative block 430. The decorative block 430 is provided with an inclined surface 437 for avoiding the limiting block 175. When the decorative block 430 is in the closed position, the inclined surface 437 abuts against the limiting block 175.

[0071] By providing the engagement between the limiting block 175 and the inclined surface 437, on the one hand, the decorative block 430 can be prevented from rotating excessively toward the main body 140; on the other hand, by providing the inclined surface 437 to avoid the limiting block 175, the thickness of the end of the decorative block 430 away from its rotational axis can be reduced, thereby reducing the probability of collision between the decorative block 430 and the wall of the through hole 170 during rotation, and improving the smoothness of the rotation of the decorative block 430.

[0072] As shown in FIG. 5, FIG. 6, FIG. 13 and FIG. 14, a first rib 436 is provided on a side of the decorative block 430 facing away from the housing 100. A second rib 440 and a third rib 441 are provided on a side of the second grille 400 facing away from the housing 100, and are located on opposite two sides of the through hole 170. When the decorative block 430 is in the closed position, the first rib 436, the second rib 440 and the third rib 441 are located on the same plane or curved surface.

[0073] For example, there may be one or more first ribs 436. If there are a plurality of first ribs 436, the plurality of first ribs 436 are spaced apart along the first direction, and each first rib 436 extends in the second direction. The second rib 440 and the third rib 441 are located on opposite two sides of the through hole 170 in the second direction. Alternatively, the plurality of first ribs 436 are spaced apart along the second direction, with each first rib 436 extending along the first direction, and the second rib 440 and the third rib 441 are located on opposite two sides of the through hole 170 in the first direction.

[0074] That is to say, when the decorative block 430 is in the closed position, the first rib 436, the second rib 440, and the third rib 441 can be connected to form an integral rib, thereby ensuring the appearance uniformity of the HVAC device outdoor unit 1 and improving the aesthetics of the HVAC device outdoor unit 1.

[0075] In addition, the first rib 436 may extend along a straight line or along a curved line.

[0076] As shown in FIG. 5 to FIG. 8, the above-mentioned HVAC device outdoor unit 1 further includes a second fixing member.

[0077] The second grille 400 is provided with a plurality of through holes 170, at least one of the plurality of through holes 170 is staggered from the first fixing member. A side of the second grille 400 facing the housing 100 is provided with a fixing plate 450, the fixing plate 450 corresponds in position to the at least one of the plurality of through holes 170, and the second fixing member is configured to be inserted through the fixing plate 450 and the main body 140.

[0078] For example, the second fixing member may be a threaded fastener, such as a bolt or a screw. By providing the second fixing member, the relative position between the second grille 400 and the housing 100 can be fixed. Moreover, when the second grille 400 is connected to the housing 100 and the decorative block 430 is in the open position, the through hole 170 is not covered by the decorative block 430, so that a user can install or detach the second fixing member corresponding to the through hole 170 via the through hole 170. When the decorative block 430 is in the closed position, it can cover and close the through hole 170, so that the user cannot observe the second fixing member through the through hole 170. On one hand, the second fixing member will not be directly contacted, which improves safety. On the other hand, in rainy or snowy weather, rain or snow is not likely to contact the second fixing member, thereby reducing the corrosion and aging rate of the second fixing member due to moisture, and prolonging the service life of the first fixing member. In addition, the appearance of the HVAC device outdoor unit 1 is neater.

[0079] In some embodiments of the present disclosure, the first fixing member may pass through the fixing plate 450, the main body 140, and the second side plate 160, to reduce the number of components and lower the cost.

[0080] In another embodiment, as shown in FIG. 15 to FIG. 21, the first grille 300 and the second grille 400 of the HVAC device outdoor unit 1 according to the embodiments of the present disclosure are integrally formed to constitute an integral grille 500. The integral grille 500 is slidably disposed on the housing 100 between a first position and a second position. Wherein, when the integral grille 500 is in the first position, it covers at least a portion of the air outlet zone 110 and at least a portion of the electrical zone 120. When the integral grille 500 is in the second position, at least a portion of the area of the electrical zone 120 that is covered when the integral grille 500 is in the first position is staggered from the integral grille 500 in the sliding direction of the integral grille 500.

[0081] According to the HVAC device outdoor unit 1 of the embodiment of the present disclosure, the housing 100 may include a top wall, a bottom wall, and side walls connected between the top wall and the bottom wall. There may be a plurality of side walls. The top wall, the bottom wall, and the side walls cooperate to enclose an installation cavity in which the fan is disposed. In practical application, the bottom wall of the HVAC device outdoor unit 1 is usually disposed on a mounting surface, and one outer wall of the housing 100 is provided with the air outlet zone 110 and the electrical zone 120. The above-mentioned outer wall of the housing 100 may correspond to the side wall or the top side, but the present disclosure is not limited thereto. The air outlet zone 110 is provided with the air outlet 111, and the fan is disposed in the installation cavity of the housing 100 and is located at the air outlet 111. The fan can drive air to exchange heat with a heat exchanger of the HVAC device outdoor unit 1, and then guide the heat-exchanged air to be discharged out of the housing 100 through the air outlet 111. Wherein the electrical zone 120 may be a mechanical cavity, the electrical zone 120 may be provided with electrical structures, for example, a service panel, a controller, or a compressor and other electrical components, for operations such as maintenance on the HVAC device outdoor unit 1.

[0082] In addition, the integral grille 500 is slidably disposed on the housing 100, and slides between the first position and the second position. Wherein, when the integral grille 500 is in the first position, it covers at least a portion of the air outlet zone 110 and at least a portion of the electrical zone 120. When the integral grille 500 is in the second position, at least a portion of the area of the electrical zone 120 that is covered when the integral grille 500 is in the first position is staggered from the integral grille 500 in the sliding direction of the integral grille 500.

[0083] It should be noted that the integral grille 500 covering the air outlet zone 110 and the electrical zone 120 when in the first position means that when the integral grille 500 is in the first position, at least a portion of an orthographic projection of the air outlet zone 110 onto a plane in which the integral grille 500 lies and at least a portion of an orthographic projection of the electrical zone 120 onto the plane in which the integral grille 500 lies are located within an area enclosed by the contour of the integral grille 500, wherein an orthographic projection of the air outlet 111 onto the plane in which the integral grille 500 lies is located within the area enclosed by the contour of the integral grille 500, and an orthographic projection of an edge of the air outlet zone 110 and an orthographic projection of an edge of the electrical zone 120 onto the plane in which the integral grille 500 lies may be located outside the area enclosed by the contour of the integral grille 500. When the integral grille 500 is in the second position, at least a portion of the area of the electrical zone 120 that is covered when the integral grille 500 is in the first position is staggered from the integral grille 500 in the sliding direction of the integral grille 500, meaning that when the integral grille 500 is in the second position, all or a part of at least a portion of the area of the electrical zone 120 that is covered when the integral grille 500 is in the first position has an orthographic projection on the plane in which the integral grille 500 lies, the orthographic projection being located outside the area enclosed by the contour of the integral grille 500. An operator can operate on a region of the electrical zone 120 that is not covered by the integral grille 500, so as to perform maintenance on the HVAC device outdoor unit 1.

[0084] When the integral grille 500 is in the first position, it covers at least a portion of the air outlet zone 110 and at least a portion of the electrical zone 120. At this time, external objects or personnel can be blocked by the integral grille 500 and cannot come into contact with the air outlet zone 110 and the electrical zone 120, or can only contact a small area of the air outlet zone 110 and a small area of the electrical zone 120. On one hand, external objects, clothing of personnel, and body parts such as hands are not likely to come into contact with the fan through the air outlet 111, thereby preventing the fan from being damaged due to collision during rotation, and preventing personnel from being scratched when the fan is rotating; on the other hand, external objects and personnel cannot come into contact with the electrical zone 120, thereby ensuring the normal operation of the electrical components in the electrical zone 120, reducing the probability of damage to the electrical components in the electrical zone 120, and preventing personnel from being injured.

[0085] When the integral grille 500 is in the second position, at least a portion of the area of the electrical zone 120 that is covered when the integral grille 500 is in the first position is staggered from the integral grille 500 in the sliding direction of the integral grille 500. At this time, at least a portion of the area of the electrical zone 120 that is covered when the integral grille 500 is in the first position is not covered by the integral grille 500. An operator can operate on the electrical components (e.g., a service panel) in the electrical zone 120 through the above-mentioned at least a portion of the electrical zone 120, so as to perform operations such as maintenance, commissioning, upgrading, and inspection on the HVAC device outdoor unit 1.

[0086] It should be noted that the electrical zone 120 may be provided with additional structures such as a cover plate. When the integral grille 500 is in the second position, the cover plate of the electrical zone 120 is exposed. At this time, the cover plate can be detached, and then the electrical components in the electrical zone 120 can be operated, further improving safety. Alternatively, the electrical zone 120 may not be additionally provided with a cover plate. When the integral grille 500 is in the second position, the electrical components in the electrical zone 120 can be directly operated, thereby reducing operation steps and enhancing the operational convenience.

[0087] Thus, by moving the integral grille 500, the HVAC device outdoor unit 1 according to the embodiments of the present disclosure can not only cover the fan and the electrical zone 120 to improve safety, but also facilitate operation on the electrical components in the electrical zone 120.

[0088] According to some specific embodiments of the present disclosure, as shown in FIG. 16, when the integral grille 500 is in the second position, it covers at least a portion of the air outlet 111. When the integral grille 500 is in the second position, an orthographic projection of most or all of the air outlet 111 onto the plane in which the integral grille 500 lies is located within the area enclosed by the contour of the integral grille 500. That is, when the integral grille 500 is in the second position, it still covers most or all of the air outlet 111.

[0089] When operating on the electrical components in the electrical zone 120, the fan may also be rotating. Therefore, the integral grille 500 is allowed to still cover most or all of the air outlet 111, so that external objects or personnel can be blocked by the integral grille 500 and are not likely to come into contact with the air outlet 111. External objects, clothing of the operator, and body parts such as hands are not likely to come into contact with the fan through the air outlet 111, thereby preventing the fan from being damaged due to collision during rotation, and preventing the operator from being scratched when the fan is rotating.

[0090] According to some specific embodiments of the present disclosure, as shown in FIGS. 19 and 21, the above-mentioned outer wall of the housing 100 is provided with a first limiting member, a side of the integral grille 500 facing the housing 100 is provided with a second limiting member, and the first limiting member and the second limiting member cooperate to limit a sliding stroke of the integral grille 500. The cooperation of the first limiting member and the second limiting member prevents disengagement of the integral grille 500 from the housing 100 in its sliding direction, thereby preventing separation between the housing 100 and the integral grille 500. The operator does not need to control the applied force and its duration, which improves ease of use.

[0091] According to some specific embodiments of the present disclosure, as shown in FIGS. 18 and 21, the first limiting member includes a first limiting protrusion 180 and a second limiting protrusion 190, and the second limiting member is a third limiting protrusion 520. The third limiting protrusion 520 may be located between the first limiting protrusion 180 and the second limiting protrusion 190 in the sliding direction of the integral grille 500. Wherein, when the integral grille 500 is in the first position, the third limiting protrusion 520 abuts against the first limiting protrusion 180; when the integral grille 500 is in the second position, the third limiting protrusion 520 abuts against the second limiting protrusion 190.

[0092] That is, during the sliding of the integral grille 500, if the third limiting protrusion 520 abuts against the first limiting protrusion 180, the integral grille 500 is in the first position, and at this time the third limiting protrusion 520 is spaced apart from the second limiting protrusion 190; if the third limiting protrusion 520 abuts against the second limiting protrusion 190, then the integral grille 500 is in the second position, and at this time the third limiting protrusion 520 is spaced apart from the first limiting protrusion 180.

[0093] The mutual cooperation among the first limiting protrusion 180, the second limiting protrusion 190 and the third limiting protrusion 520 can prevent accidental disengagement of the integral grille 500 from the housing 100 due to excessive force during sliding, thereby ensuring the structural reliability of the HVAC device outdoor unit 1, and at the same time limiting the sliding range of the integral grille 500.

[0094] Specifically, the first limiting protrusion 180 may be located on a side of the electrical zone 120 facing away from the air outlet zone 110, which can ensure that the electrical zone 120 can be covered to a greater extent by the integral grille 500 when the integral grille 500 is in the first position. The third limiting protrusion 520 is located on a side edge of the integral grille 500 facing the first limiting protrusion 180, so as to maximize the utilization of the area of the integral grille 500 and save cost. The second limiting protrusion 190 may be located at the boundary between the air outlet zone 110 and the electrical zone 120, which can ensure that the electrical zone 120 can be uncovered to a greater extent by the integral grille 500 when the integral grille 500 is in the second position, facilitating operation of the electrical components in the electrical zone 120.

[0095] According to some specific embodiments of the present disclosure, as shown in FIGS. 18 and 21, the first limiting protrusion 180 is provided with a first fixing hole 181, and when the integral grille 500 is in the first position, a first fixing member inserted through the first fixing hole 181 is detachably connected to the third limiting protrusion 520. Wherein, the first fixing member may be a threaded fastener, such as a bolt or a screw, and the third limiting protrusion 520 may be provided with a threaded hole. The first fixing member, after passing through the first fixing hole 181, is threadedly connected to the threaded hole of the third limiting protrusion 520. Alternatively, the first fixing member inserted through the first fixing hole 181 may be snap-fitted to the third limiting protrusion 520.

[0096] By providing the first fixing member, the integral grille 500 can be fixed in the first position, preventing the integral grille 500 from sliding relative to the housing 100 under non-manual operation, ensuring the positioning reliability between the integral grille 500 and the housing 100, which is beneficial for reducing the probability of accidental exposure of the electrical zone 120, and preventing the integral grille 500 from being damaged due to collision during handling and transportation of the HVAC device outdoor unit 1.

[0097] According to some specific embodiments of the present disclosure, as shown in FIGS. 18 and 21, the above-mentioned outer wall of the housing 100 is provided with a first fixing protrusion 1100. The first fixing protrusion 1100 and the first limiting protrusion 180 are located on opposite two sides of the housing 100 in the sliding direction of the integral grille 500. A side of the integral grille 500 facing the housing 100 is provided with a second fixing protrusion 530. The second fixing protrusion 530 is located on a side of the first fixing protrusion 1100 facing away from the first limiting protrusion 180. Wherein, the second fixing protrusion 530 is provided with a second fixing hole 531, and when the integral grille 500 is in the first position, a second fixing member inserted through the second fixing hole 531 is detachably connected to the first fixing protrusion 1100.

[0098] For example, the second fixing member may be a threaded fastener, such as a bolt or a screw, and the first fixing protrusion 1100 may be provided with a threaded hole. The second fixing member, after passing through the second fixing hole 531, is threadedly connected to the threaded hole of the first fixing protrusion 1100, or the second fixing member inserted through the second fixing hole 531 may be snap-fitted to the first fixing protrusion 1100. In addition, the second fixing protrusion 530 and the third limiting protrusion 520 may be integrally formed with the integral grille 500, and the dimension of the second fixing protrusion 530 in the axial direction of the air outlet 111 and the dimension of the third limiting protrusion 520 in the axial direction of the air outlet 111 may be the same.

[0099] Through the cooperation between the first fixing protrusion 1100 and the second fixing protrusion 530, the integral grille 500 can be more reliably fixed in the first position, more effectively preventing the integral grille 500 from sliding relative to the housing 100 under non-manual operation. Furthermore, the first fixing protrusion 1100 and the first limiting protrusion 180 are located on opposite two sides of the housing 100 in the sliding direction of the integral grille 500, so that the overall integral grille 500 is subjected to more uniform force when in the first position. In addition, the second fixing protrusion 530 is located on the side of the first fixing protrusion 1100 facing away from the first limiting protrusion 180. When the integral grille 500 slides from the first position to the second position, the first fixing protrusion 1100 does not interfere with the second fixing protrusion 530, ensuring smooth movement of the integral grille 500.

[0100] According to some specific embodiments of the present disclosure, as shown in FIGS. 14 to 18, the sliding direction of the integral grille 500, the axial direction of the air outlet 111, and the height direction of the HVAC device outdoor unit 1 are perpendicular to each other, and the air outlet zone 110 and the electrical zone 120 are arranged along the sliding direction of the integral grille 500.

[0101] It should be noted that the direction indicated by arrow A in the drawings is the axial direction of the air outlet 111, the direction indicated by arrow B is the sliding direction of the integral grille 500, and the direction indicated by arrow C is the height direction of the HVAC device outdoor unit 1.

[0102] Specifically, after the HVAC device outdoor unit 1 is installed, for a person facing the above-mentioned outer wall of the HVAC device outdoor unit 1, the sliding direction of the integral grille 500 may be the left-right direction of the housing 100, the height direction of the HVAC device outdoor unit 1 may be the up-down direction of the housing 100, and the axial direction of the air outlet 111 may be the front-rear direction of the housing 100.

[0103] Thus, the sliding direction of the integral grille 500 better conforms to the force exertion habit of a human hand, thereby making it convenient for an operator to push and pull the integral grille 500.

[0104] According to some specific embodiments of the present disclosure, as shown in FIGS. 18 to 21, the above-mentioned outer wall of the housing 100 is provided with a first limiting structure 1200, and the integral grille 500 is provided with a second limiting structure 510. The first limiting structure 1200 and the second limiting structure 510 are slidably engaged with each other, and are configured to limit the relative position between the integral grille 500 and the housing 100.

[0105] For example, the first limiting structure 1200 and the second limiting structure 510 are located above or below the air outlet zone 110 and the electrical zone 120, or at least one first limiting structure 1200 and at least one second limiting structure 510 may be provided at each of an upper side and a lower side of the air outlet zone 110 and the electrical zone 120.

[0106] The cooperation between the first limiting structure 1200 and the second limiting structure 510 can not only limit the sliding of the integral grille 500 relative to the housing 100 in a preset direction, but also limit the relative position between the integral grille 500 and the housing 100, so that the integral grille 500 is not likely to disengage from the housing 100, thereby improving operational convenience.

[0107] It should be noted that the first limiting structure 1200 may be located above the air outlet zone 110 and the electrical zone 120. Under the action of gravity, the integral grille 500 may naturally hang down so that the first limiting structure 1200 and the second limiting structure 510 can reliably engage with each other, and the integral grille 500 is not likely to flip downward relative to the housing 100, which can ensure the stable fixing of the integral grille 500 to the housing 100.

[0108] According to some specific embodiments of the present disclosure, as shown in FIGS. 18 to 21, the first limiting structure 1200 includes a first connecting section 1210, a bent section 1220, and a first limiting section 1230.

[0109] The first connecting section 1210 is connected to the above-mentioned outer wall of the housing 100 and is arranged along the height direction of the HVAC device outdoor unit 1. The bent section 1220 is connected to an upper side edge of the first connecting section 1210 and extends in a direction away from the housing 100. The first limiting section 1230 is connected to a side edge of the bent section 1220 away from the housing 100 and extends upward. Wherein, at least a portion of the second limiting structure 510 is located between the first limiting section 1230 and the housing 100 in the axial direction of the air outlet 111.

[0110] For example, the first connecting section 1210, the bent section 1220, and the first limiting section 1230 may be integrally formed. Furthermore, the first connecting section 1210 and the housing 100 may be connected by a threaded fastener. The first connecting section 1210 may be attached to the housing 100 to increase the contact area between the housing 100 and the first limiting structure 1200, ensuring the connection strength between the housing 100 and the first limiting structure 1200.

[0111] By placing at least a portion of the second limiting structure 510 between the first limiting section 1230 and the housing 100, when the integral grille 500 and the housing 100 move away from each other in the axial direction of the air outlet 111, the second limiting structure 510 and the first limiting section 1230 will abut against each other, thereby limiting the relative position between the integral grille 500 and the housing 100 in the axial direction of the air outlet 111, preventing the integral grille 500 from falling off the housing 100.

[0112] According to some specific embodiments of the present disclosure, as shown in FIGS. 17 and 19, the second limiting structure 510 includes a second connecting section 511 and a second limiting section 512.

[0113] The second connecting section 511 has a side edge connected to a side of the integral grille 500 facing the housing 100. The second limiting section 512 is connected to a side edge of the second connecting section 511 facing the housing 100 and extends downward. The second limiting section 512 is located between the first limiting section 1230 and the housing 100 in the axial direction of the air outlet 111.

[0114] Wherein, the second limiting structure 510 may be integrally formed with the integral grille 500, and the second connecting section 511 may be supported on an upper side edge of the first limiting section 1230, or the second limiting section 512 may be supported on the bent section 1220, so as to limit the relative position between the integral grille 500 and the housing 100 in the height direction of the HVAC device outdoor unit 1.

[0115] Thus, through the mutual cooperation between the first limiting section 1230 and the second limiting section 512, when the integral grille 500 moves away from the housing 100 in the axial direction of the air outlet 111, the relative position between the integral grille 500 and the housing 100 in the axial direction of the air outlet 111 can be limited, preventing the integral grille 500 from falling off the housing 100.

[0116] In addition, when the integral grille 500 is moved upward relative to the housing 100, the second limiting section 512 can be higher than the first limiting section 1230. At this time, the integral grille 500 can be detached from the housing 100 so as to clean, repair, and replace the integral grille 500. When the integral grille 500 is moved downward relative to the housing 100, the second limiting section 512 is inserted between the first limiting section 1230 and the housing 100. At this time, the integral grille 500 can be fixed to the housing 100.

[0117] According to some specific embodiments of the present disclosure, as shown in FIG. 17, the first limiting structure 1200 further includes a support section 1240. The support section 1240 is connected to an upper side edge of the first limiting section 1230 and extends in a direction away from the housing 100. The support section 1240 supports a lower surface of the second limiting section 512. Wherein, the second limiting section 512 is provided with a third fixing hole 513, and a third fixing member inserted through the third fixing hole 513 is connected to the support section 1240.

[0118] For example, the third fixing member may be a threaded fastener, such as a bolt or a screw, and the support section 1240 may be provided with a threaded hole. The third fixing member, after passing through the third fixing hole 513, is threadedly connected to the threaded hole of the support section 1240, or the third fixing member inserted through the third fixing hole 513 may be snap-fitted to the support section 1240.

[0119] By providing the support section 1240, on the one hand, the contact area between the first limiting structure 1200 and the integral grille 500 can be increased to improve the limiting effect; on the other hand, the relative position between the support section 1240 and the second limiting section 512 can be fixed by the third fixing member, thereby achieving fixation of the relative position between the housing 100 and the integral grille 500.

[0120] In addition, the third limiting protrusion 520 is lower than the support section 1240 in the height direction of the HVAC device outdoor unit 1, so as to avoid interference between the third limiting protrusion 520 and the support section 1240 when the integral grille 500 slides. The highest point of the second fixing protrusion 530 in the height direction of the HVAC device outdoor unit 1 may be higher than the lowest point of the support section 1240. When the integral grille 500 is in the first position, the second fixing protrusion 530 can abut against the support section 1240 to form a limiting effect.

[0121] According to some specific embodiments of the present disclosure, as shown in FIGS. 17 and 18, at least one of a lower side surface of the support section 1240 and a side of the first limiting section 1230 facing the integral grille 500 is provided with a second limiting protrusion 190, and a side of the integral grille 500 facing the housing 100 is provided with the third limiting protrusion 520. Wherein, when the integral grille 500 is in the second position, the third limiting protrusion 520 abuts against the second limiting protrusion 190; when the integral grille 500 is in the first position, the third limiting protrusion 520 is spaced apart from the second limiting protrusion 190.

[0122] That is, the second limiting protrusion 190 is provided on the side of the first limiting section 1230 facing the integral grille 500, or the second limiting protrusion 190 is provided on the lower side surface of the support section 1240, or each of the side of the first limiting section 1230 facing the integral grille 500 and the lower side surface of the support section 1240 is provided with a second limiting protrusion 190.

[0123] Through the cooperation between the second limiting protrusion 190 and the third limiting protrusion 520, when the integral grille 500 slides, the integral grille 500 can be limited in the second position and will not disengage from the housing 100. The second limiting protrusion 190 and the first limiting structure 1200 may be integrally formed, which is beneficial for reducing processing difficulty and improve structural strength. Compared with the air outlet zone 110 and the electrical zone 120, the support section 1240 and the first limiting section 1230 are closer to the integral grille 500. Therefore, providing the second limiting protrusion 190 on at least one of the support section 1240 and the first limiting section 1230 can reduce the dimension of the second limiting protrusion 190 in the axial direction of the air outlet 111, thereby reducing cost. Further, during transportation, production, and handling of the housing 100, the second limiting protrusion 190 is less likely to interfere with other objects.

[0124] In some specific embodiments of the present disclosure, as shown in FIGS. 19 and 20, the third limiting protrusion 520 may be provided with a plurality of first lightening holes 521 spaced apart along the height direction of the HVAC device outdoor unit 1, the second fixing protrusion 530 may be provided with a plurality of second lightening holes 532 spaced apart along the height direction of the HVAC device outdoor unit 1, and the second connecting section 511 may be provided with a plurality of third lightening holes 514 spaced apart along the sliding direction of the integral grille 500.

[0125] The same or similar reference signs in the drawings of the embodiment correspond to the same or similar components. In the description of the present disclosure, it should be understood that, the orientations or positional relationships indicated by the terms such as "upper", "lower", "left", and "right" are based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationships in the drawings are only for exemplary illustration, and cannot be construed as limiting the present disclosure. For a person skilled in the art, the specific meanings of the above terms can be understood according to specific situations.

[0126] The foregoing is merely preferred embodiments of the present disclosure and is not intended to limit the present disclosure. Any modification, equivalent substitution, improvement and the like made within the spirit and principles of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. A heating, ventilation and air conditioning, HVAC, device outdoor unit, comprising: a housing, wherein an outer wall of the housing is provided with an air outlet zone and an electrical zone, the air outlet zone being provided with an air outlet; a fan disposed in the housing and corresponding to the air outlet; a first grille disposed on a main body and covering at least a portion of the air outlet zone; and a second grille detachably disposed on the main body and covering at least a portion of the electrical zone.

2. The HVAC device outdoor unit according to claim 1, wherein: the housing comprises the main body and a first side plate, the main body having a first direction and a second direction that are perpendicular to each other, wherein an outer wall of the main body in the first direction is provided with the air outlet zone and the electrical zone, and the first side plate is detachably connected to a side of the main body in the second direction; the first grille and the second grille are arranged along the second direction, wherein in the second direction, the first side plate is located on a side of the second grille facing away from the first grille; when the first side plate is connected to the main body, the first side plate abuts against the second grille, to fix a relative position between the second grille and the main body; and when the first side plate is separated from the main body, the second grille is detachable from the main body.

3. The HVAC device outdoor unit according to claim 2, wherein one of the first grille and the second grille is provided with a positioning notch, and the other of the first grille and the second grille is provided with a positioning insert configured to be inserted into the positioning notch.

4. The HVAC device outdoor unit according to claim 2, wherein: one of the second grille and the main body is provided with a first plug-in portion, and the other of the second grille and the main body is provided with a second plug-in portion; and the second grille is movable relative to the main body in a horizontal direction between a plug-in position and a fixed position, wherein when the second grille is in the plug-in position, the first plug-in portion and the second plug-in portion are connected in a pluggable manner, and when the second grille is in the fixed position, the first plug-in portion and the second plug-in portion are connected in a non-pluggable manner, wherein: when the first side plate is connected to the main body, the first side plate limits the second grille in the fixed position; and when the first side plate is separated from the main body, the second grille is movable between the plug-in position and the fixed position.

5. The HVAC device outdoor unit according to claim 4, wherein: said one of the second grille and the main body is provided with a plurality of first plug-in portions, wherein at least three of the plurality of first plug-in portions are not collinear; and said the other of the second grille and the main body is provided with a plurality of second plug-in portions, wherein at least three of the plurality of second plug-in portions are not collinear, wherein the plurality of first plug-in portions and the plurality of second plug-in portions are connected in one-to-one correspondence.

6. The HVAC device outdoor unit according to claim 4, wherein: the first plug-in portion comprises: a connecting section connected to a side of the second grille facing the main body and extending towards the main body; and a plug-in section connected to the connecting section and extending horizontally from the connecting section towards the first grille; and the second plug-in portion is a slot and is constructed on a side of the main body facing the second grille, wherein when the second grille is in the plug-in position, the plug-in section corresponds in position to an opening of the slot, and when the second grille is in the fixed position, the plug-in section is staggered from the opening of the slot.

7. The HVAC device outdoor unit according to claim 2, wherein the housing further comprises: a second side plate, wherein the main body further has a third direction, the first direction, the second direction and the third direction being perpendicular to each other, and the second side plate being located on a side of the main body in the third direction; and a first fixing member inserted through the outer wall and the second side plate, wherein: when the second grille is connected to the main body, the first fixing member corresponds in position to the second grille; and when the second grille is separated from the main body, the first fixing member is exposed.

8. The HVAC device outdoor unit according to claim 7, wherein: the housing comprises a plurality of first fixing members spaced apart along the second direction, wherein some of the plurality of first fixing members correspond in position to the first grille, and others of the plurality of first fixing members correspond in position to the second grille; and at least one of the first grille and the second grille is provided with a through hole, which corresponds in position to a respective first fixing member of the first fixing members.

9. The HVAC device outdoor unit according to claim 8, further comprising a decorative block rotatably connected to a wall of the through hole between an open position and a closed position, wherein: when the decorative block is in the open position, the first fixing member is exposed from the through hole; and when the decorative block is in the closed position, the decorative block covers and closes the through hole to cover the first fixing member.

10. The HVAC device outdoor unit according to claim 9, wherein one of the decorative block and the wall of the through hole is provided with a rotation shaft, and the other of the decorative block and the wall of the through hole is provided with a rotation groove, wherein the rotation shaft is rotatable in the rotation groove and extends in the third direction.

11. The HVAC device outdoor unit according to claim 9, wherein one of an outer surface of the decorative block and the wall of the through hole is provided with a damping protrusion, and during rotation of the decorative block, the other of the outer surface of the decorative block and the wall of the through hole contacts the damping protrusion, generating a frictional damping force.

12. The HVAC device outdoor unit according to claim 11, wherein when the damping protrusion is provided on the outer surface of the decorative block, a plurality of damping protrusions are provided, wherein the plurality of damping protrusions comprise first damping protrusions and second damping protrusions spaced apart along the second direction.

13. The HVAC device outdoor unit according to claim 12, wherein: the first damping protrusions are respectively disposed on two opposite sides of the outer surface of the decorative block in the third direction; and / or the second damping protrusions are respectively disposed on two opposite sides of the outer surface of the decorative block in the third direction.

14. The HVAC device outdoor unit according to claim 12, wherein: the first damping protrusions are closer to a rotational axis of the decorative block than the second damping protrusions; and when the decorative block is in the closed position, a distance between the wall of the through hole and the first damping protrusions in the first direction is smaller than a distance between the wall of the through hole and the second damping protrusions in the first direction, so that during rotation of the decorative block from the closed position to the open position, the first damping protrusions contact the wall of the through hole earlier than the second damping protrusions.

15. The HVAC device outdoor unit according to claim 11, wherein the wall of the through hole comprises a surrounding rim disposed on a side of at least one of the first grille and the second grille facing the housing, wherein the surrounding rim surrounds the through hole and is provided with an avoidance notch, and when the decorative block is in the closed position, the damping protrusion is located in the avoidance notch.

16. The HVAC device outdoor unit according to claim 9, wherein one of the wall of the through hole and an outer surface of the decorative block is provided with positioning blocks, and the other of the wall of the through hole and the outer surface of the decorative block is provided with positioning grooves, wherein when the decorative block is in the closed position, the positioning blocks are located in the positioning grooves.

17. The HVAC device outdoor unit according to claim 16, wherein: the positioning grooves are disposed on two opposite sides of the decorative block in the third direction; the positioning blocks are provided on two opposite side walls of the through hole in the third direction; and a cross-sectional area of each positioning block gradually decreases from the closed position to the open position.

18. The HVAC device outdoor unit according to claim 9, wherein: the wall of the through hole is provided with a limiting block, wherein in the second direction, the limiting block is located on a side of the through hole away from a rotational axis of the decorative block; and the decorative block is provided with an inclined surface for avoiding the limiting block, wherein when the decorative block is in the closed position, the inclined surface abuts against the limiting block.

19. The HVAC device outdoor unit according to claim 9, wherein: a first rib is provided on a side of the decorative block facing away from the housing; and a second rib and a third rib are provided on a side of the second grille facing away from the housing, and are located on two opposite sides of the through hole, wherein when the decorative block is in the closed position, the first rib, the second rib and the third rib are located on a same plane or curved surface.

20. The HVAC device outdoor unit according to claim 8, further comprising a second fixing member, wherein: the second grille is provided with a plurality of through holes, wherein at least one of the plurality of through holes is staggered from the first fixing member; and a side of the second grille facing the housing is provided with a fixing plate, wherein the fixing plate corresponds in position to the at least one of the plurality of through holes, and the second fixing member is configured to be inserted through the fixing plate and the main body.

21. The HVAC device outdoor unit according to claim 1, wherein the first grille and the second grille are integrally formed to constitute an integral grille, which is slidably disposed on the housing between a first position and a second position, wherein: when the integral grille is in the first position, the integral grille covers at least a portion of the air outlet zone and at least a portion of the electrical zone; and when the integral grille is in the second position, at least a portion of an area of the electrical zone that is covered when the integral grille is in the first position is staggered from the integral grille in the sliding direction of the integral grille.

22. The HVAC device outdoor unit according to claim 21, wherein when the integral grille is in the second position, the integral grille still covers at least a portion of the air outlet.

23. The HVAC device outdoor unit according to claim 21 or 22, wherein the outer wall of the housing is provided with a first limiting member, and a side of the integral grille facing the housing is provided with a second limiting member, wherein the first limiting member and the second limiting member cooperate to limit a sliding stroke of the integral grille.

24. The HVAC device outdoor unit according to claim 23, wherein the first limiting member comprises a first limiting protrusion and a second limiting protrusion, and the second limiting member is a third limiting protrusion, the third limiting protrusion being located between the first limiting protrusion and the second limiting protrusion in the sliding direction of the integral grille, wherein: when the integral grille is in the first position, the third limiting protrusion abuts against the first limiting protrusion; and when the integral grille is in the second position, the third limiting protrusion abuts against the second limiting protrusion.

25. The HVAC device outdoor unit according to claim 24, wherein the first limiting protrusion is provided with a first fixing hole, and when the integral grille is in the first position, a first fixing member inserted through the first fixing hole is detachably connected to the third limiting protrusion.

26. The HVAC device outdoor unit according to claim 24, wherein: the outer wall of the housing is provided with a first fixing protrusion, and the first fixing protrusion and the first limiting protrusion are located on two opposite sides of the housing in the sliding direction of the integral grille; and a side of the integral grille facing the housing is provided with a second fixing protrusion, wherein the second fixing protrusion is located on a side of the first fixing protrusion facing away from the first limiting protrusion, and is provided with a second fixing hole, wherein when the integral grille is in the first position, a second fixing member inserted through the second fixing hole is detachably connected to the first fixing protrusion.

27. The HVAC device outdoor unit according to claim 21, wherein: the sliding direction of the integral grille, an axial direction of the air outlet, and a height direction of the HVAC device outdoor unit are perpendicular to each other; and the air outlet zone and the electrical zone are arranged along the sliding direction of the integral grille.

28. The HVAC device outdoor unit according to claim 21, wherein the outer wall of the housing is provided with a first limiting structure, and the integral grille is provided with a second limiting structure, wherein the first limiting structure and the second limiting structure are slidably engaged with each other in the sliding direction of the integral grille, and are configured to limit a relative position between the integral grille and the housing.

29. The HVAC device outdoor unit according to claim 28, wherein the first limiting structure comprises: a first connecting section, wherein the first connecting section is connected to the outer wall of the housing and is arranged along a height direction of the HVAC device outdoor unit; a bent section, wherein the bent section is connected to an upper side edge of the first connecting section and is bent in a direction away from the housing; a first limiting section, wherein the first limiting section is connected to a side edge of the bent section away from the housing and extends upward, wherein at least a portion of the second limiting structure is located between the first limiting section and the housing in an axial direction of the air outlet.

30. The HVAC device outdoor unit according to claim 29, wherein the second limiting structure comprises: a second connecting section, having a side edge connected to a side of the integral grille facing the housing, wherein the second connecting section extends towards the housing; and a second limiting section, wherein the second limiting section is connected to a side edge of the second connecting section facing the housing and extends downward, and the second limiting section is located between the first limiting section and the housing in the axial direction of the air outlet.

31. The HVAC device outdoor unit according to claim 30, wherein: the first limiting structure further comprises a support section, wherein the support section is connected to an upper side edge of the first limiting section and extends in a direction away from the housing, and the support section supports a lower surface of the second connecting section; and the second connecting section is provided with a third fixing hole, wherein a third fixing member inserted through the third fixing hole is detachably connected to the support section.

32. The HVAC device outdoor unit according to claim 31, wherein at least one of a lower side surface of the support section and a side of the first limiting section facing the integral grille is provided with a second limiting protrusion, and a side of the integral grille facing the housing is provided with a third limiting protrusion, wherein: when the integral grille is in the second position, the third limiting protrusion abuts against the second limiting protrusion; and when the integral grille is in the first position, the third limiting protrusion is spaced apart from the second limiting protrusion.

33. An HVAC device, comprising the HVAC device outdoor unit according to any one of claims 1 to 32.

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