Metal air guide ring structure and heat pump

Abstract

The utility model discloses a metal air guide ring structure and a heat pump, the metal air guide ring structure comprises a supporting piece and an aluminum splice plate, the supporting piece can be installed on a heat pump box body, the aluminum splice plate is formed by splicing at least two split plates, the aluminum splice plate is welded to the outer edge of the supporting piece, the supporting piece is provided with an air outlet, and the air outlet is formed in the outer edge of the aluminum splice plate. A plurality of first fastening pieces are distributed in the circumferential direction of the air outlet, the axis direction of the first fastening pieces is perpendicular to the surface of the supporting piece, the first fastening pieces are connected with the supporting piece and the aluminum splice plate, and the aluminum splice plate is further provided with grating holes corresponding to the air outlet in position. The structural strength of the aluminum splice plate is guaranteed, meanwhile, it is ensured that the air tightness of the air outlet meets the requirement, in addition, no screws are exposed on the appearance, and the appearance is clean, attractive and uniform.

Description

Technical Field

[0001] This application relates to the technical field of heat pumps, and more particularly to a metal air guide ring structure and a heat pump. Background Technology

[0002] In the manufacturing of air conditioning air guide components, traditional injection molding materials, due to their good flowability and molding performance, can achieve the sealed molding of complex structural parts through an integrated mold-making process. However, when aluminum sheets are used to replace injection molding materials, due to the inherent physical properties of metals, existing technical solutions have significant technical defects: aluminum sheets are relatively soft and have a low modulus of elasticity, making them prone to plastic deformation during splicing and assembly, resulting in irregular gaps at the splicing joints. This deformation problem is particularly prominent in areas requiring high-precision sealing, such as the air guide ring opening. Traditional splicing methods cannot guarantee the flatness and perpendicularity of the joints, causing airtightness defects. Utility Model Content

[0003] The purpose of this application is to provide a metal air guide ring structure and a heat pump, which ensures the structural strength of the aluminum splicing plate, while ensuring that the air tightness at the air outlet meets the requirements. In addition, it also achieves a clean, beautiful and uniform appearance with no exposed screws.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On one hand, a metal air guide ring structure is provided, including: a support member and an aluminum splicing plate. The support member can be installed in a heat pump housing. The aluminum splicing plate is formed by splicing at least two separate plates. The aluminum splicing plate is welded to the outer edge of the support member. The support member is provided with an air outlet. The air outlet is circumferentially distributed with a plurality of first fasteners whose axial direction is perpendicular to the surface of the support member. The first fasteners connect the support member and the aluminum splicing plate. The aluminum splicing plate is also provided with grille holes corresponding to the position of the air outlet.

[0006] Furthermore, the aluminum splicing panel includes a plurality of split panels continuously distributed along a first direction. In any two adjacent split panels, one of the split panels has a groove on the side away from the support member, and the other split panel has a boss that mates with the groove.

[0007] Furthermore, the groove is provided with a first through hole, and the boss is provided with a third locking hole corresponding to the first through hole. A second fastener passes through the first through hole and locks itself in the third locking hole.

[0008] Furthermore, the aluminum splicing plate is provided with a plurality of reinforcing ribs at intervals on the side away from the support member, and at least one of the reinforcing ribs corresponds to the position of the boss, so that the third locking hole can extend into the reinforcing rib.

[0009] Furthermore, the boss and the groove are in clearance fit, and the clearance between the two ends of the boss in the first direction and the groove wall is 0.05-0.15mm.

[0010] Furthermore, the support member is provided with a plurality of first locking holes, which are arranged circumferentially along the outer edge of the air outlet. The aluminum splicing plate is provided with second locking holes corresponding to the first locking holes. The first fastener passes through the first locking hole and locks itself in the second locking hole, thereby fixing the aluminum splicing plate to the side of the support member away from the housing.

[0011] Furthermore, the support includes a base plate and a fixing strip. The aluminum splicing plate is installed on one side of the base plate, and the fixing strip is installed on the other side of the base plate. A buckle is provided on the side of the fixing strip away from the base plate, and the box body is provided with a slot that engages with the buckle.

[0012] Furthermore, the fixing strip extends toward the housing to form a locking part, and the locking part is locked and fixed to the housing by fasteners.

[0013] Furthermore, the support member also includes a frame, which is set on the outer edge of the base plate and welded to the aluminum splicing plate.

[0014] On the other hand, a heat pump is also provided, including a housing and a metal air guide ring structure as described above.

[0015] The beneficial effects of this application are as follows: The support component, as the core mounting base, is rigidly connected to the outer edge of the aluminum splicing plate through welding, constructing a closed ring-shaped skeleton structure. The aluminum splicing plate adopts an integrated aluminum extrusion molding and a multi-point rigid connection scheme with the first fastener. While ensuring the structural deformation resistance and transportation vibration tolerance, it significantly improves the airtightness at the air outlet. Moreover, the first fastener, through its embedded installation design, completely eliminates the risk of dust accumulation and corrosion caused by exposed screw heads. Through the concealed fastening design and seamless splicing process, not only is a clean appearance with no exposed screws achieved, but the surface of the aluminum splicing plate forms a continuous metallic texture plane, and the grille holes are highly integrated with the overall shape, significantly enhancing the high-end visual appearance of the product. In addition, the plasticity advantage of lightweight aluminum material meets diverse styling customization needs, making the appearance of the heat pump product perfectly adapt to the invisible design trend of modern home scenes. Attached Figure Description

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] Figure 1This is a perspective view of the heat pump described in the embodiments of this application;

[0018] Figure 2 This is an exploded view of the heat pump described in the embodiments of this application;

[0019] Figure 3 Examples of this application Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a perspective view of the aluminum splicing panel described in the embodiments of this application;

[0021] Figure 5 Examples of this application Figure 4 Enlarged view of point B in the middle;

[0022] Figure 6 The explosion of the aluminum splicing panel described in the embodiments of this application. Figure 1 ;

[0023] Figure 7 Examples of this application Figure 6 Enlarged view of point C in the middle;

[0024] Figure 8 The explosion of the aluminum splicing panel described in the embodiments of this application. Figure 2 ;

[0025] Figure 9 This is a perspective view of the base plate described in the embodiments of this application;

[0026] Figure 10 This is a perspective view of the fixing strip described in the embodiment of this application;

[0027] Figure 11 This is a schematic diagram of the splicing of two adjacent split plates according to another embodiment of this application.

[0028] In the diagram: 1. Housing; 101. Slot; 102. Threaded hole; 2. Support component; 201. Base plate; 202. Fixing strip; 203. Frame; 2011. Air outlet; 2012. First locking hole; 2021. Buckle; 2022. Locking part; 2023. Second through hole; 2031. Upper frame; 2032. Lower frame; 3. Aluminum splicing plate; 301. Split plate; 302. Grille hole; 303. Reinforcing rib; 304. Groove; 305. Boss; 306. Step groove; 307. Second locking hole; 3041. First through hole; 3051. Third locking hole. Detailed Implementation

[0029] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] like Figures 1-10 As shown, this application embodiment provides a metal air guide ring structure, including: a support member 2 and an aluminum splicing plate 3. The support member 2 can be installed on the heat pump box 1. The aluminum splicing plate 3 is formed by splicing at least two split plates 301. The aluminum splicing plate 3 is welded to the outer edge of the support member 2. The support member 2 is provided with an air outlet 2011. The air outlet 2011 is circumferentially distributed with a plurality of first fasteners whose axial direction is perpendicular to the surface of the support member 2. The first fasteners connect the support member 2 and the aluminum splicing plate 3. The aluminum splicing plate 3 is also provided with grille holes 302 corresponding to the position of the air outlet 2011.

[0033] Based on the above scheme, the support component 2, as the core load-bearing base, forms a fully enclosed annular metal skeleton with the outer edge of the aluminum splicing plate 3 through laser welding, directly transmitting the dynamic wind pressure load during heat pump operation to the main structure of the high-strength support component 2; the first fasteners distributed vertically around the air outlet 2011 constitute a multi-point rigid constraint network, and their axial layout forms an orthogonal constraint with the airflow impact direction, which not only strengthens the micro-sealing of the splice seam through mechanical clamping force, but also uses the rigidity of the support component 2 to suppress the tendency of aluminum plastic deformation; the precise cutting and matching of the grille hole 302 and the air outlet 2011 form a laminar flow air guiding channel, and the combined effect of the welded sealing surface and the mechanical fastening surface completely blocks the airflow penetration path; the hidden embedded fastening design allows the first fastener to be completely sunk into the metal surface, and with the plasticity advantage of aluminum, a 3D curved surface shape is achieved, ultimately constructing a complete technical system that combines structural strength, airtight performance and industrial aesthetics. The aforementioned concealed embedded fastening design specifically refers to completely hiding screws and other fasteners inside the metal, with a smooth surface and no exposed parts. This design is not only aesthetically pleasing and prevents airflow leakage, but also withstands wind pressure and can adapt to complex shapes.

[0034] This solution combines aesthetic and functional advantages. First, through a concealed fastening design, all fixing structures are located on the back of the aluminum panel 3, with no exposed screws on the front, significantly improving the product's clean appearance and premium feel. Second, the support component 2 provides distributed support for the aluminum panel 3, solving the problem of thin plates being prone to deformation and ensuring structural reliability under long-term use. Furthermore, the first fastener around the air outlet 2011 forms an airtight structure, effectively reducing airflow loss and improving heat pump efficiency. In addition, the modular design simplifies the installation process, reduces maintenance costs, and the material difference between the aluminum panel 3 and the support component 2 optimizes cost and weight balance, balancing economy and durability.

[0035] Furthermore, the aluminum splicing panel 3 includes multiple split panels 301 continuously distributed along a first direction. In any two adjacent split panels 301, one split panel 301 has a groove 304 on the side opposite to the support member 2, and the other split panel 301 has a boss 305 that mates with the groove 304. The aluminum splicing panel 3 adopts a split-type overlapping structure, achieving seamless splicing through the mechanical interlocking of the groove 304 and the boss 305. When each split panel 301 is continuously arranged along the first direction, the contact surfaces of adjacent panels are respectively provided with complementary concave and convex features: the edge of one split panel 301 is machined into an inwardly concave groove structure, while the other split panel 301 forms an outwardly convex tenon-shaped boss 305. During installation, the boss 305 is embedded into the groove 304 to form a precision fit, utilizing the elastic deformation characteristics of aluminum to achieve an interference fit or snap-fit ​​fixation. This design replaces traditional connectors with geometric constraints, ensuring structural strength at the joints and minimizing seams by replacing line contact with surface contact. Simultaneously, the width of the split plate 301 is strictly controlled within the economical mold forming range of 200-250mm, allowing each plate to be efficiently formed through a single aluminum extrusion process, avoiding material waste and soaring processing costs associated with ultra-wide molds.

[0036] It should be noted that since multiple split plates 301 are spliced ​​in the first direction, the grooves 304 on the split plates extend in the second direction, and the protrusions 305 on the split plates 301 also extend in the second direction. The second direction is perpendicular to the first direction. This ensures that the splicing structure between two adjacent split plates 301 is long enough, thereby ensuring sufficient stability after splicing.

[0037] As an optional specific implementation, the boss 305 and the groove 304 are in a clearance fit. The gap between the two ends of the boss 305 in the first direction and the groove wall of the groove 304 is 0.05-0.15mm. A third locking hole 3051 corresponding to the first through hole 3041 is provided. A second fastener passes through the first through hole 3041 and locks into the third locking hole 3051. The overlapping structure of the split plate 301 adopts a clearance fit design, and the boss 305 and the groove 304 maintain a moderate gap in the assembly direction. This gap design provides tolerance for the installation process, allowing the split plate 301 to be slightly adjusted during assembly, ensuring splicing accuracy, and avoiding forced assembly problems caused by processing or assembly errors. During installation, the split plate 301 is quickly positioned by the gap guidance, and then a hidden second fastener passes through from the back of the support member 2 and locks into the pre-set third locking hole 3051 of the aluminum splicing plate 3, forming a rigid connection. This design simplifies the assembly process by utilizing the flexibility of clearance fit, and completely eliminates exposed screws on the front by fastening from the back, achieving the dual goals of structural fixation and aesthetic enhancement.

[0038] As another optional specific implementation, an annular protrusion is provided on one side of the support member 2 relative to the aluminum splicing plate 3. The annular protrusion is located on the outer periphery of the air outlet 2011 and abuts against the aluminum splicing plate 3 through the contact surface of the annular protrusion. It is then fixed by the first fastener, resulting in better fixing effect and better air tightness.

[0039] It should be noted that a step groove 306 for positioning is also provided on one side of the groove 304. The step groove 306 is used to provide positioning when the two split plates 301 overlap, so as to ensure that the boss 305 can be accurately positioned with the groove 304.

[0040] In this embodiment, as Figure 11 As shown, the split plate 301 can only have a groove 304, such as Figure 5 As shown, groove 304 and stepped groove 306 can also be set at the same time, depending on the actual design requirements.

[0041] In some embodiments, the aluminum panel 3 has multiple reinforcing ribs 303 spaced apart on the side opposite to the support member 2. The aluminum panel 3, facing away from the support member 2, forms a three-dimensional support structure through the spaced arrangement of multiple reinforcing ribs 303. These reinforcing ribs 303 are typically integrally formed with the aluminum panel 3 using an extrusion molding process, and are regularly distributed along a specific direction (such as transverse, longitudinal, or grid-like), utilizing geometric shapes (such as trapezoidal, triangular, or wavy cross-sections) to construct a pressure-bearing skeleton on the back of the thin plate. When the aluminum panel 3 is subjected to external forces or airflow pressure, the reinforcing ribs 303 distribute the local load to a larger area through their own stiffness, while simultaneously suppressing bending deformation of the plate through a deformation coordination mechanism. Their spaced arrangement design avoids increased weight due to excessive density and ensures overall structural stability through reinforcement of key stress areas. Furthermore, the airflow channels formed by the reinforcing ribs 303 optimize airflow organization, reduce vibration noise generated by turbulence, and utilize the thermal conductivity of aluminum to assist in heat dissipation.

[0042] It is worth noting that at least one of the reinforcing ribs 303 corresponds to the position of the boss 305, so that the third locking hole 3051 can extend into the reinforcing rib 303. By precisely aligning the position of at least one reinforcing rib 303 with the boss 305, the third locking hole 3051 can extend longitudinally into the interior of the reinforcing rib 303. When the fastener passes through the support member 2 and locks into the third locking hole 3051, the locking force acts directly on the thickened area of ​​the reinforcing rib 303, rather than directly on the thin-walled aluminum splicing plate 3. The three-dimensional structure of the reinforcing rib 303 provides sufficient wall thickness support for the locking hole, increasing the thread engagement length. At the same time, utilizing the characteristics of the aluminum extrusion molding process, a high-density metal structure is formed inside the reinforcing rib 303, significantly improving shear resistance and pull-out resistance.

[0043] Furthermore, the spacing between two adjacent reinforcing members at the grille opening 302 is 8.5mm, which is the minimum spacing to prevent fingers from passing through, while the minimum spacing between two adjacent reinforcing ribs 303 at other locations is 14.5mm. The design aims to achieve the following: First, enhanced safety performance, the 8.5mm anti-penetration spacing enables the product to pass mechanical hazard protection certification, reducing the risk of user contact; second, optimized cost-effectiveness, the 14.5mm spacing in non-critical areas reduces the amount of aluminum used, lowers the unit cost, and improves the extrusion molding yield; third, enhanced functional synergy, the dense ribs in the grille area form a guide array with the airflow direction, reducing the drag coefficient and improving heat exchange efficiency, while the large spacing area achieves noise reduction through optimized airflow channels.

[0044] Optionally, the support member 2 is further provided with a plurality of first locking holes 2012, which are arranged circumferentially along the outer edge of the air outlet 2011. The aluminum splicing plate 3 is provided with second locking holes 307 corresponding to the first locking holes 2012. The first fastener passes through the first locking hole 2012 and locks itself in the second locking hole 307, thereby fixing the aluminum splicing plate 3 to the side of the support member 2 away from the housing 1. The plurality of first locking holes 2012 are equidistantly distributed circumferentially along the outer edge of the air outlet 2011, forming a ring constraint array. When the first fastener is perpendicularly inserted and locked in the corresponding second locking hole 307, a multi-point mechanical connection network is constructed between the aluminum splicing plate 3 and the support member 2. This vertical axis layout makes the direction of the fastening force orthogonal to the lateral shear force generated by the airflow impact, which can directly convert the wind pressure load into the axial bearing mode of the support member 2, avoiding creep relaxation of the aluminum splicing plate 3 due to long-term stress. Meanwhile, the circumferentially spaced locking holes create a uniform stress distribution pattern, effectively preventing structural deformation caused by localized stress concentration. The pre-tightening force generated after the first fastener is locked can forcibly press together the microscopic uneven areas of the aluminum plate splice plate 3, forming a composite sealing system with the welded sealing surface. This not only improves airtightness through mechanical clamping but also serves as a supplementary connection method for the welding process, constructing a dual structural protection mechanism to ensure the long-term reliability of the air guide ring under complex working conditions.

[0045] Furthermore, the support member 2 includes a base plate 201 and a fixing strip 202. The aluminum splicing plate 3 is installed on one side of the base plate 201, and the fixing strip 202 is installed on the other side of the base plate 201. A buckle 2021 is provided on the side of the fixing strip 202 facing away from the base plate 201. The housing 1 is provided with a slot 101 that engages with the buckle 2021. The support member 2 adopts a split structure design of the base plate 201 and the fixing strip 202. The base plate 201, as the main frame, is directly attached to the aluminum splicing plate 3, providing planar support through a hidden fastening point on the back. The fixing strip 202 is vertically installed on the other side of the base plate 201. An elastic buckle 2021 is provided at the end of the fixing strip 202, utilizing the deformation characteristics of the polyamide material to achieve tool-free installation. During assembly, the buckle 2021 slides into the corresponding slot 101 of the housing 1 via the guide ramp. After reaching the preset position, it triggers an elastic reset, and its barbed structure forms a mechanical interlock with the inner wall of the slot 101. This design decomposes the installation of the support component 2 into two independent processes: the pre-assembly of the base plate 201 and the aluminum splicing plate 3 is completed at the front end of the production line, and the connection of the buckle 2021 of the fixing strip 202 is achieved in the final assembly stage. Modular division of labor improves assembly efficiency. At the same time, the buckle 2021 and the base plate 201 form a three-dimensional fixing system to ensure that the support component 2 maintains structural stability under the vibration environment of heat pump operation.

[0046] Furthermore, the fixing strip 202 extends towards the housing 1 to form a locking part 2022, which is locked and fixed to the housing 1 by fasteners. The locking part 2022 adopts a vertical bending design, and its end is provided with a standard second through hole 2023, which forms an axial alignment relationship with the pre-made threaded hole 102 of the same specification at the corresponding position of the housing 1. During assembly, the buckle 2021 first completes the initial fixation and eliminates the lateral assembly gap through elastic deformation. Then, the second through hole 2023 of the locking part 2022 is precisely coaxial with the threaded hole 102 of the housing 1. After the fastener (such as a screw) is screwed in, the metal-metal mechanical interlock is formed between the two through the threaded engagement. This design decomposes the connection structure into a two-stage system of elastic pre-positioning and rigid locking: the buckle 2021 absorbs tolerances and prevents lateral slippage, while the screw eliminates gaps through pre-tightening force. At the same time, the rigid connection of the second through hole 2023 and the threaded hole 102 can resist the vibration load during the operation of the heat pump. The extension length of the locking part 2022 and the position of the threaded hole 102 are determined through topology optimization. While ensuring that the thread engagement length meets the torque requirements, the material usage is minimized. The bending angle design takes into account both the stamping processability and the structural torsional rigidity.

[0047] Meanwhile, the support member 2 also includes a frame 203, which is set around the outer edge of the base plate 201 and welded to the aluminum splicing plate 3, i.e., the aluminum splicing plate 3 and the base plate 201 are welded together by the frame 203. The frame 203 forms a rigid connection with the outer edge of the base plate 201 through an enclosing structure, and its cross-section has a closed cavity shape to improve torsional stiffness. The welding surfaces of the frame 203 and the aluminum splicing plate 3 are pre-treated to form a micro-serrated surface, and molecular-level fusion is achieved through a cold metal transition welding process. The weld is distributed in a continuous closed loop, creating an uninterrupted force transmission path between the base plate 201 and the aluminum splicing plate 3.

[0048] Furthermore, the frame 203 includes a U-shaped upper frame 2031 and a lower frame 2032 located at the bottom of the upper frame 2031, with rounded corners at both corners of the upper frame 2031. Addressing the industry challenge of easily deformed rounded corners during aluminum extrusion, this design innovatively employs an integral stamping solution: through high-precision die-concave-convex mold cooperation, the U-shaped contour forming and rounded corner feature shaping are completed simultaneously in a single stamping process. The mold design incorporates a contoured streamlined cavity, dynamically compensating for material flow during stamping, ensuring the continuity of the metal fiber structure in the rounded corner area, and completely eliminating the deformation risk caused by the welding heat-affected zone in traditional segmented overlapping processes.

[0049] On the other hand, a heat pump is also provided, including a housing 1 and a metal air guide ring structure as described above.

[0050] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0051] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0053] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A metal wind band structure, characterized in that, include: The support member (2) and the aluminum splicing plate (3) are provided. The support member (2) can be installed in the heat pump box (1). The aluminum splicing plate (3) is formed by splicing at least two separate plates (301). The aluminum splicing plate (3) is welded to the outer edge of the support member (2). The support member (2) is provided with an air outlet (2011). The air outlet (2011) is circumferentially distributed with a plurality of first fasteners whose axial direction is perpendicular to the surface of the support member (2). The first fasteners connect the support member (2) and the aluminum splicing plate (3). The aluminum splicing plate (3) is also provided with a grille hole (302) corresponding to the position of the air outlet (2011).

2. The metal wind band structure of claim 1, wherein, The aluminum splicing panel (3) includes a plurality of split panels (301) continuously distributed along a first direction. In any two adjacent split panels (301), one of the split panels (301) has a groove (304) on the side away from the support member (2), and the other split panel (301) has a boss (305) that cooperates with the groove (304).

3. The metal wind band structure of claim 2, wherein, The groove (304) is provided with a first through hole (3041), and the boss (305) is provided with a third locking hole (3051) corresponding to the first through hole (3041). A second fastener passes through the first through hole (3041) and locks itself in the third locking hole (3051).

4. The metal wind band structure of claim 3, wherein, The aluminum splicing plate (3) is provided with a plurality of reinforcing ribs (303) at intervals on the side away from the support member (2), and at least one of the reinforcing ribs (303) corresponds to the position of the boss (305) so that the third locking hole (3051) can extend into the reinforcing rib (303).

5. The metal wind band structure of claim 4, wherein, The boss (305) and the groove (304) are in clearance fit, and the gap between the two ends of the boss (305) in the first direction and the groove wall of the groove (304) is 0.05-0.15mm.

6. The metal air guide ring structure according to any one of claims 1-5, characterized in that, The support member (2) is also provided with a plurality of first locking holes (2012), which are arranged circumferentially along the outer edge of the air outlet (2011). The aluminum splicing plate (3) is provided with a second locking hole (307) corresponding to the first locking hole (2012). The first fastener passes through the first locking hole (2012) and locks itself in the second locking hole (307), thereby fixing the aluminum splicing plate (3) to the side of the support member (2) away from the box body (1).

7. The metal wind band structure according to any one of claims 1-5, wherein, The support member (2) includes a base plate (201) and a fixing strip (202). The aluminum splicing plate (3) is installed on one side of the base plate (201), and the fixing strip (202) is installed on the other side of the base plate (201). The fixing strip (202) is provided with a buckle (2021) on the side away from the base plate (201). The box body (1) is provided with a slot (101) that engages with the buckle (2021).

8. The metal wind band structure of claim 7, wherein, The fixing strip (202) extends toward the box (1) and forms a locking part (2022), which is locked and fixed to the box (1) by fasteners.

9. The metal wind band structure of claim 7, wherein, The support member (2) also includes a frame (203), which is set on the outer edge of the base plate (201) and welded to the aluminum splicing plate (3).

10. Heat pump comprising a cabinet (1), characterized in that It also includes the metal air guide ring structure as described in any one of claims 1-9.

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