Connecting plate, connecting structure and air conditioner

Abstract

The connecting plate comprises an integrally-formed plate body, a connecting hole is formed in the plate body through punching and hole flanging, the connecting hole penetrates through the plate body in the thickness direction of the plate body, the connecting hole is used for being connected with a fastener in a fastened mode, the thickness of the plate body ranges from 0.4 mm to 0.8 mm, and in the thickness direction of the plate body, the thickness of the plate body ranges from 0.4 mm to 0.8 mm. The size of the connecting hole is in the range of 1.8 mm to 3 mm. According to the connecting plate provided by the embodiment of the invention, the thickness of the plate body of the connecting plate ranges from 0.4 mm to 0.8 mm, and the plate body is subjected to punching and hole flanging to form the connecting hole. The size of the connecting hole in the thickness direction of the plate body is set within the range of 1.8 mm to 3 mm, so that the fastening effect of the connecting plate and a fastener is improved. In addition, the connecting plate is of an integrally-formed structure, the manufacturing process of the connecting plate is simplified, waste of raw materials in the production process of the connecting plate is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the field of connecting plate technology, and in particular to a connecting plate, a connecting structure, and an air conditioner. Background Technology

[0002] In the assembly structure of home appliances, fasteners are often used to connect two components. In related technologies, when a thin connecting plate exists in the connection structure, an additional backing plate is often required to increase the fastening area between the connecting plate and the fastener, thereby improving the fastening effect. This leads to complex manufacturing processes for the connecting plate. Utility Model Content

[0003] To address the aforementioned technical problems, embodiments of this application provide a connecting plate, a connecting structure, and an air conditioner for simplifying the manufacturing process of the connecting plate.

[0004] The embodiments of this application are implemented through the following technical solutions.

[0005] This application provides a connecting plate, which includes an integrally formed plate body. The plate body is formed with connecting holes by stamping and turning holes. The connecting holes penetrate the plate body along the thickness direction and are used for fastening with fasteners.

[0006] The thickness of the plate is in the range of 0.4mm to 0.8mm, and the size of the connecting hole is in the range of 1.8mm to 3mm along the thickness direction of the plate.

[0007] In one embodiment, the angle between the wall of the connecting hole and the plate body is in the range of 80° to 110°.

[0008] In one embodiment, the ratio of the thickness of the hole wall to the thickness of the plate is in the range of 0.8 to 1.

[0009] In one embodiment, the diameter of the connecting hole is in the range of 3 mm to 4 mm.

[0010] In one embodiment, the plate includes a first surface and a second surface disposed opposite to each other along the thickness direction of the plate. The plate is punched with a hole along the first surface to the second surface in the same direction to form the connecting hole. A first rounded corner is provided at the connection between the hole wall of the connecting hole and the second surface, and the radius of the first rounded corner is in the range of 0 mm to 1 mm.

[0011] In one embodiment, a second fillet is provided at the connection between the hole wall and the first surface, and the radius of the second fillet is equal to the sum of the radius of the first fillet and the thickness of the plate.

[0012] This application provides a connection structure, which includes a connector, a fastener, and a connecting plate as described in any embodiment of this application. The connector has a through hole, and the fastener passes through the through hole and the connecting hole in sequence.

[0013] In one embodiment, the fastener is a self-tapping screw.

[0014] This application provides an air conditioner, which includes the connection structure described in any embodiment of this application.

[0015] In one embodiment, the air conditioner includes an air outlet grille, a front panel, and the fasteners, wherein the air outlet grille is configured as the connector, the front panel is configured as the connecting plate, and the fasteners securely connect the air outlet grille to the front panel; and / or,

[0016] The air conditioner includes a right side panel, an electrical control box, and the fasteners. The right side panel serves as the connector, the electrical control box serves as the connecting plate, and the fasteners securely connect the right side panel to the electrical control box; and / or...

[0017] The air conditioner includes a top cover, a right side panel, and the fasteners. The top cover serves as the connector, the right side panel serves as the connecting plate, and the fasteners securely connect the top cover to the right side panel; and / or...

[0018] The air conditioner includes a top cover, a left side panel, and the fasteners. The top cover serves as the connector, the left side panel serves as the connecting plate, and the fasteners securely connect the top cover to the left side panel; and / or...

[0019] The air conditioner includes a chassis, an evaporator side plate, and the fasteners. The chassis serves as the connector, the evaporator side plate serves as the connecting plate, and the fasteners securely connect the chassis to the evaporator side plate; and / or...

[0020] The air conditioner includes a chassis, a condenser side plate, and the fasteners. The chassis serves as the connector, the condenser side plate serves as the connecting plate, and the fasteners securely connect the chassis to the condenser side plate; and / or...

[0021] The air conditioner includes an electrical control box and the fastener. The electrical control box includes a box body and a box cover. The box body is configured as the connector, and the box cover is configured as the connecting plate. The fastener securely connects the box body and the box cover.

[0022] This application provides a connecting plate with a thickness ranging from 0.4mm to 0.8mm. Connecting holes are formed by punching and turning the plate, allowing for a secure connection between the connecting plate and fasteners. By setting the dimensions of the connecting holes along the thickness direction of the plate to between 1.8mm and 3mm, the contact area between the connecting holes and fasteners can be increased while ensuring the structural strength of the connecting holes, thereby improving the fastening effect between the connecting plate and the fasteners. Furthermore, the connecting plate has a one-piece molded structure, which simplifies the manufacturing process, reduces material waste during production, and lowers production costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the connection structure in one embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the connecting plate in one embodiment of this application.

[0025] Explanation of reference numerals in the attached figures

[0026] 10. Connection structure; 1. Connection plate; 11. Plate body; 111. First surface; 112. Second surface; 12. Connection hole; 13. First fillet; 14. Second fillet; 2. Connector; 21. Through hole; 3. Fastener. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0028] In the description of the embodiments of this application, it should be noted that the terms "height direction," "top," "bottom," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the embodiments of this application and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation. They are constructed and operated in a specific orientation and therefore should not be construed as limiting the embodiments of this application. The application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] This application provides an air conditioner, which includes the connection structure of any embodiment of this application.

[0030] An air conditioner is a device used to regulate parameters such as indoor temperature, humidity, cleanliness, and airflow velocity, providing functions such as cooling, heating, ventilation, and dehumidification. In this application, the air conditioner employs the connection structure of any embodiment of this application to connect various components within the air conditioner, thereby improving assembly efficiency.

[0031] In some embodiments, the air conditioner is a split unit, which includes an air outlet grille, a front panel, and fasteners. The air outlet grille is configured as a connector, the front panel is configured as a connecting plate, and the fasteners securely connect the air outlet grille to the front panel.

[0032] A split-type air conditioner consists of two parts: an indoor unit and an outdoor unit. The indoor unit is responsible for air conditioning and distribution, while the outdoor unit handles heat exchange. The two units are connected by pipes and wiring. Split-type air conditioners offer flexible installation, allowing for selection of suitable locations based on the room layout. They also operate with relatively low noise, minimizing disruption to indoor activities.

[0033] The air outlet grille is a component of the indoor unit of a split-type air conditioner, located at the air outlet. Its main function is to guide and disperse the blown air, ensuring that the airflow is evenly distributed throughout the indoor space; at the same time, it protects the internal core components such as the fan and evaporator, preventing dust, debris, and other foreign objects from entering and ensuring the normal operation of the equipment. In this embodiment, the air outlet grille acts as a connector for connecting with other components.

[0034] The air outlet mesh in this embodiment can be a sheet metal part or an injection molded part, and there is no limitation on it.

[0035] The front panel, located at the front of the indoor unit of a split-type air conditioner, is a visually prominent component directly visible to the user, serving a decorative and aesthetic purpose and influencing the overall visual appeal of the product. Furthermore, the front panel provides mounting support for internal components and is an important part of the indoor unit's structure. In this embodiment, the front panel serves as a connecting plate, connected to the air outlet grille via fasteners.

[0036] For example, the front panel of this application embodiment is a sheet metal part.

[0037] In some embodiments, the air conditioner is a split unit, which includes a right side panel, an electrical control box, and fasteners. The right side panel is configured as a connector, the electrical control box is configured as a connecting plate, and the fasteners securely connect the right side panel and the electrical control box.

[0038] The right side panel is the right-side portion of the outdoor unit casing of the split-type air conditioner, serving to protect internal components, support the structure, and shape the product's appearance. In this embodiment, the right side panel acts as a connector for connecting to other components.

[0039] For example, the right side panel in this embodiment is a sheet metal part.

[0040] The electrical control box integrates electronic components such as control circuit boards, relays, and capacitors. It serves as the control center of the entire air conditioning system, responsible for receiving and processing various control signals, regulating the operating status of components such as the compressor and fan, and ensuring the normal operation of the air conditioner. In this embodiment, the electrical control box is connected to the right side panel as a connecting plate.

[0041] For example, the electrical control box in this application embodiment is a sheet metal part.

[0042] In some embodiments, the air conditioner is a split unit, which includes a top cover, a right side panel, and fasteners. The top cover is configured as a connector, the right side panel is configured as a connecting plate, and the fasteners securely connect the top cover and the right side panel.

[0043] The top cover is the top cover of the outdoor unit casing of the split-type air conditioner. Its main function is to protect internal components and prevent dust and debris from entering. It also provides structural support, enhancing the overall stability of the casing. In this embodiment, the top cover acts as a connector for connecting to the right side panel.

[0044] For example, the top cover in this application embodiment is a sheet metal part.

[0045] In some embodiments, the air conditioner is a split unit, which includes a top cover, a left side panel, and fasteners. The top cover is configured as a connector, the left side panel is configured as a connecting plate, and the fasteners securely connect the top cover and the left side panel.

[0046] The left side panel is the left portion of the outdoor unit casing of the split-type air conditioner. It serves to protect internal components, provide mounting support for internal parts, maintain overall structural stability, and significantly influences the product's appearance. In this embodiment, the left side panel acts as a connecting plate, connected to the top cover via fasteners.

[0047] For example, the left side panel in this application embodiment is a sheet metal part.

[0048] In some embodiments, the air conditioner is a window unit, which includes a chassis, an evaporator side plate, and fasteners. The chassis is configured as a connector, the evaporator side plate is configured as a connecting plate, and the fasteners securely connect the chassis and the evaporator side plate.

[0049] Window units are a type of air conditioner. They have a compact overall structure and are usually installed in windows or pre-drilled wall openings. Window units integrate cooling, heating, and ventilation functions, and unlike split units, they do not require indoor and outdoor unit connections, making installation simple. However, they tend to be noisier during operation, and their installation location is limited by windows or wall openings.

[0050] The chassis serves to support and secure other internal components (such as the compressor, evaporator, and condenser), forming the foundation of the window air conditioner's overall structure. In this embodiment, the chassis acts as a connector, used to connect with other components and ensure stability during operation.

[0051] For example, the chassis in this application embodiment is a sheet metal part.

[0052] The evaporator side plate is a plate-shaped component surrounding the evaporator, serving to protect the evaporator and assist in its installation. The evaporator is a crucial component of a window refrigeration system, achieving a cooling effect by absorbing indoor heat. The evaporator side plate connects to the chassis, helping to secure the evaporator's position and ensure its normal operation. In this embodiment, the evaporator side plate serves as a connecting plate, connected to the chassis via fasteners.

[0053] For example, the evaporator side plate in this application embodiment is a sheet metal part.

[0054] In some embodiments, the air conditioner is a window unit, which includes a chassis, a condenser side plate, and fasteners. The chassis is configured as a connector, the condenser side plate is configured as a connecting plate, and the fasteners securely connect the chassis and the condenser side plate.

[0055] The condenser side plate is a plate-shaped component surrounding the condenser, serving to protect, support, and assist in its installation. The condenser achieves its refrigeration cycle by releasing heat. The condenser side plate connects to the chassis, helping to stabilize the condenser's position and ensuring efficient heat dissipation and normal operation. In this embodiment, the condenser side plate acts as a connecting plate, securely connected to the chassis using fasteners.

[0056] For example, the condenser side plate in this application embodiment is a sheet metal part.

[0057] In some embodiments, the air conditioner is a window unit, which includes an electrical control box and fasteners. The electrical control box includes a box body and a box cover. The box body is configured as a connector, and the box cover is configured as a connecting plate. The fasteners securely connect the box body and the box cover.

[0058] The box body is the main part of the electrical control box, providing installation space and physical support for the internal electronic components, and serving to house and protect them. In this technical solution, the box body acts as a connector, used to connect with the box cover to seal the electrical control box and ensure the safe and stable operation of the internal components.

[0059] For example, the box body in this application embodiment is a sheet metal part.

[0060] The cover is a protective component of the electrical control box, used in conjunction with the box body to cover the top or side of the box body, enclosing the internal electronic components and further enhancing their protection against dust, moisture, etc. In this design, the cover acts as a connecting plate, securely connected to the box body via fasteners.

[0061] For example, the box cover in this application embodiment is a sheet metal part.

[0062] This application provides a connection structure; please refer to [link / reference]. Figure 1 The connection structure 10 includes a connector 2, a fastener 3, and a connection plate 1 according to any embodiment of the present application. The connector 2 is provided with a through hole 21, and the fastener 3 passes through the through hole 21 and the connection hole 12 in sequence.

[0063] The through hole 21 is a hole made on the connector 2. Its size and shape are adapted to the fastener 3. Its function is to allow the fastener 3 to pass through smoothly, thereby fastening the connector 2 and the connecting plate 1.

[0064] The connection structure 10 consists of a connector 2, a fastener 3, and a specially designed connecting plate 1. The connector 2 has a pre-set through hole 21. During the actual assembly process, the fastener 3 will pass through the through hole 21 of the connector 2 in sequence, and then be inserted into the connecting hole 12 of the connecting plate 1. Through the fastening action of the fastener 3, the connector 2 and the connecting plate 1 are firmly fixed together to form a stable connection structure 10.

[0065] In some embodiments, fastener 3 is a self-tapping screw.

[0066] Fastener 3 uses self-tapping screws. During the assembly process, the self-tapping screws will pass through the through holes 21 on the connector 2 in sequence, and then be screwed into the connecting holes 12 on the connecting plate 1. Through its own cutting and screwing action, a matching internal thread is formed in the connecting hole 12, thereby firmly connecting the connector 2 and the connecting plate 1 together.

[0067] Based on the characteristics of self-tapping screws, such as no need for pre-tapping and easy installation, combined with the overall requirements of the connection structure 10, it is beneficial to simplify the assembly process, improve connection efficiency, and improve the reliability of the connection, so as to meet the requirements of the connection structure 10 under different application scenarios.

[0068] In some embodiments, the fastener 3 may also be a bolt, which may have a corresponding thread machined on the connecting hole 12. The bolt achieves connection within the connecting hole 12 by engaging with the thread.

[0069] This application provides a connecting plate; please refer to [link / reference]. Figure 1 The connecting plate 1 includes an integrally formed plate body 11. Connecting holes 12 are formed in the plate body 11 by stamping and flanging. The connecting holes 12 penetrate the plate body 11 along its thickness direction and are used for fastening to the fastener 3. The thickness of the plate body 11 is in the range of 0.4mm to 0.8mm, and the size of the connecting holes 12 along the thickness direction of the plate body 11 is in the range of 1.8mm to 3mm.

[0070] Integrated molding refers to the process by which the sheet metal 11 is manufactured into an inseparable whole, improving upon the gaps and weak points that may exist in traditional splicing methods, and enhancing the overall performance and quality of the components. In this embodiment, the sheet metal 11 is integrally molded using sheet metal processing.

[0071] Stamping and flanging is a metal processing technique that uses a stamping die to apply pressure to the plate 11, causing localized plastic deformation of the material and forming a raised hole-like structure, namely the connecting hole 12. The function of the connecting hole 12 is to cooperate with the fastener 3 to achieve a fastening connection between the connecting plate 1 and other components.

[0072] In addition, by forming the connecting hole 12 in one step through the stamping and turning process, the inner and outer diameters of the connecting hole 12 can be made concentric, which is beneficial to improving the uniformity of the structure of the connecting hole 12.

[0073] The type of fastener 3 is not specifically limited here; for example, it can be a bolt, screw, rivet, etc.

[0074] The thickness of the plate 11 is in the range of 0.4mm to 0.8mm. The thickness of the plate 11 is not specifically limited here. For example, it can be 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm and 0.8mm, etc.

[0075] Along the thickness direction of the plate 11, the size of the connecting hole 12 is in the range of 1.8mm to 3mm. The specific size of the connecting hole 12 is not limited here. For example, it can be 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, etc.

[0076] The thickness dimension of the connecting hole 12 affects the contact area between the fastener 3 and the connecting hole 12. Taking a screw as an example, the thickness dimension of the connecting hole 12 affects the number of engagement turns between the connecting hole 12 and the screw. If the number of engagement turns between the connecting hole 12 and the screw is less than three, the screw is prone to stripping. The thickness dimension of the connecting hole 12 should ensure that the number of engagement turns between the connecting hole 12 and the screw is no less than three.

[0077] In the assembly structure of home appliances such as air conditioners, two components are often connected by fasteners 3. In related technologies, when a thin connecting plate 1 exists in the connection structure 10, an additional backing plate is often needed to increase the fastening area between the connecting plate 1 and the fastener 3, thereby improving the fastening effect of the fastener 3. This leads to complex manufacturing processes for the connecting plate 1. For example, by superimposing a thicker backing plate on one side of the connecting plate 1, the fastener 3 passes through both the connecting plate 1 and the backing plate, and is simultaneously connected with both the backing plate and the connecting plate 1, increasing the fastening area of ​​the fastener 3 and improving its fastening effect. However, this type of connecting plate 1 suffers from complex manufacturing processes, wastes material, and is unsuitable for situations where a backing plate cannot be installed in confined spaces. The backing plate also carries the risk of loosening.

[0078] This application provides a connecting plate 1. The plate body 11 of the connecting plate 1 has a thickness ranging from 0.4 mm to 0.8 mm. Connecting holes 12 are formed by punching and turning holes in the plate body 11. Thus, the connecting plate 1 and the fastener 3 can be fastened together through the connecting holes 12. By setting the size of the connecting holes 12 along the thickness direction of the plate body 11 to within the range of 1.8 mm to 3 mm, the contact area between the connecting holes 12 and the fastener 3 can be increased while ensuring the structural strength of the connecting holes 12, thereby improving the fastening effect between the connecting plate 1 and the fastener 3. In addition, the connecting plate 1 is a one-piece molded structure, which helps to simplify the manufacturing process of the connecting plate 1, reduce the waste of raw materials during the production of the connecting plate 1, and reduce production costs.

[0079] In some embodiments, please refer to Figures 1 to 2 The angle between the wall of the connecting hole 12 and the plate 11 is in the range of 80° to 110°.

[0080] The angle between the wall of the connecting hole 12 and the plate 11 is in the range of 80° to 110°. The size of the angle is not specifically limited here. For example, it can be 80°, 81°, 82°, 83°, 84°, 85°, 86°, 87°, 88°, 89°, 90°, 91°, 92°, 93°, 94°, 95°, 96°, 97°, 98°, 99°, 100°, 101°, 102°, 103°, 104°, 105°, 106°, 107°, 108°, 109°, and 110°, etc.

[0081] The hole wall of the connecting hole 12 refers to the side wall structure formed by the protrusions around the connecting hole 12, which is the part where the connecting hole 12 contacts the fastener 3 and achieves a fastening connection.

[0082] When the positional relationship between the connecting hole 12 and the plate 11 is closer to perpendicular (i.e., the angle between the hole wall of the connecting hole 12 and the plate 11 is close to 90°), the contact area between the fastener 3 and the connecting hole 12 during fastening is greater. Taking a screw as an example, the closer the positional relationship between the connecting hole 12 and the plate 11 is to perpendicular, the greater the contact area between the screw and the connecting hole 12, and the greater the effective number of thread turns of the screw into the connecting hole 12.

[0083] By setting the angle between the wall of the connecting hole 12 and the plate 11 within the range of 80° to 110°, the positional relationship between the connecting hole 12 and the plate 11 can be made nearly perpendicular, increasing the contact area between the fastener 3 and the connecting hole 12, thereby improving the fastening effect of the fastener 3. This also facilitates better guidance of the fastener 3 into the connecting hole 12 during assembly, reducing assembly difficulty and errors, and improving assembly efficiency and quality. Furthermore, the angle range is within the range easily achievable by the stamping process. While ensuring the performance of the connecting plate 1, there is no need for overly complex adjustments to the stamping die and processing technology, reducing processing difficulty and production costs, and facilitating mass production.

[0084] In some embodiments, please refer to Figures 1 to 2 The ratio of the thickness of the hole wall of the connecting hole 12 to the thickness of the plate body 11 is in the range of 0.8 to 1.

[0085] The ratio of the thickness of the hole wall of the connecting hole 12 to the thickness of the plate 11 is in the range of 0.8 to 1. The specific value of the ratio is not limited here. For example, it can be 0.8, 0.85, 0.9, 0.95 and 1, etc.

[0086] The thickness of the hole wall refers to the dimension of the hole wall of the connecting hole 12 in the direction perpendicular to the hole wall surface (that is, the dimension of the hole wall along the radial direction of the connecting hole 12). This dimension affects the load-bearing capacity and deformation resistance of the connecting hole 12.

[0087] The hole wall is formed by punching and turning the plate 11. The hole wall structure is formed by the part of the structure removed from the plate 11 during the punching and turning process before processing.

[0088] It is understandable that when the size of the connecting hole 12 is greater than the actual unfolded length of the material removed during the stamping and turning process of the plate 11 along the thickness direction of the plate 11, the thickness of the hole wall of the connecting hole 12 is less than the thickness of the plate 11, that is, the ratio of the thickness of the hole wall of the connecting hole 12 to the thickness of the plate 11 is less than 1; when the size of the connecting hole 12 is equal to the actual unfolded length of the material removed during the stamping and turning process of the plate 11 along the thickness direction of the plate 11, the thickness of the hole wall of the connecting hole 12 is equal to the thickness of the plate 11, that is, the ratio of the thickness of the hole wall of the connecting hole 12 to the thickness of the plate 11 is equal to 1.

[0089] The ratio of the hole wall thickness of the connecting hole 12 to the thickness of the plate 11 is set within the range of 0.8 to 1. This means that the hole wall thickness of the connecting hole 12 will not be less than 80% of the thickness of the connecting plate 1, and can be equal to the thickness of the connecting plate 1 at most. This ratio range is set by comprehensively considering factors such as the stress characteristics of the connecting plate 1 in actual use, the required connection strength, and the feasibility of the processing technology. By controlling this ratio, the connecting hole 12 can have sufficient strength and stability when mating with the fastener 3, while also ensuring the rationality and economy of the overall structure of the connecting plate 1.

[0090] In some embodiments, please refer to Figures 1 to 2 The diameter of the connecting hole 12 is in the range of 3mm to 4mm.

[0091] The diameter of the connecting hole 12 is in the range of 3mm to 4mm. The specific size of the diameter is not limited here. For example, it can be 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm and 4.0mm, etc.

[0092] The diameter of the connecting hole 12 is closely related to the tightening effect of the fastener 3. Taking the fastener 3 as a screw as an example, when the diameter of the connecting hole 12 is too small, it is difficult to tap the screw, affecting the installation of the fastener 3. When the diameter of the connecting hole 12 is too large, it is easy to cause the screw to be too loose during installation, resulting in stripping.

[0093] For example, in air conditioners, self-tapping screws or grounding screws with a diameter of 3.9 mm are commonly used as fasteners 3. For self-tapping screws with a diameter of 3.9 mm, the required diameter of the connecting hole 12 is in the range of 3.1 mm to 3.2 mm. For grounding screws with a diameter of 3.9 mm, the required diameter of the connecting hole 12 is in the range of 3.55 mm to 3.58 mm.

[0094] By setting the diameter of the connecting hole 12 within the aforementioned range, it is beneficial to match the size of the connecting hole 12 with the pitch of the fastener 3, such as a screw, thereby improving the fastening effect between the connecting hole 12 and the fastener 3.

[0095] In some embodiments, please refer to Figures 1 to 2 The plate 11 includes a first surface 111 and a second surface 112 disposed opposite to each other along the thickness direction of the plate 11. The plate 11 is punched with a hole along the first surface 111 to the second surface 112 to form a connecting hole 12. A first fillet 13 is provided at the connection between the hole wall of the connecting hole 12 and the second surface 112, and the radius of the first fillet 13 is in the range of 0 mm to 1 mm.

[0096] The radius of the first fillet 13 is in the range of 0mm to 1mm. The specific radius is not limited here. For example, the radius can be 0mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm and 1.0mm, etc.

[0097] It should be noted that when the radius of the first fillet 13 is 0mm, it means that the connection between the hole wall of the connecting hole 12 and the second surface 112 is a right-angle connection without fillets.

[0098] In some embodiments, please refer to Figure 1 and Figure 2 A second fillet 14 is provided at the connection between the hole wall of the connecting hole 12 and the first surface 111. The radius of the second fillet 14 is equal to the sum of the radius of the first fillet 13 and the thickness of the plate 11.

[0099] The first fillet 13 and the second fillet 14 optimize the structural performance of the connecting hole 12, improving stress concentration at the connection between the first surface 111 or the second surface 112 and the plate 11. When the connecting plate 1 is under stress, the fillet allows the stress to be distributed more evenly around the connecting hole 12, reducing the risk of cracking and fatigue failure at this location and extending the service life of the connecting plate 1, especially suitable for conditions subjected to dynamic loads. In addition, the second fillet 14 at the connection between the hole wall of the connecting hole 12 and the first surface 111 also facilitates the fastener 3's insertion into the connecting hole 12, acting as a guide and aiding in the assembly of the fastener 3.

[0100] Furthermore, in this embodiment, the size of the connecting hole 12 along the thickness direction of the plate 11 refers to the distance from the end face of the connecting hole 12 to the first surface 111.

[0101] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A connecting plate, characterized in that, The connecting plate includes an integrally formed plate body, and the plate body is formed with connecting holes by stamping and turning holes. The connecting holes penetrate the plate body along the thickness direction and are used for fastening with fasteners. The thickness of the plate is in the range of 0.4mm to 0.8mm, and the size of the connecting hole is in the range of 1.8mm to 3mm along the thickness direction of the plate.

2. The connecting plate according to claim 1, characterized in that, The angle between the wall of the connecting hole and the plate is in the range of 80° to 110°.

3. The connecting plate according to claim 1, characterized in that, The ratio of the thickness of the hole wall to the thickness of the plate is in the range of 0.8 to 1.

4. The connecting plate according to claim 1, characterized in that, The diameter of the connecting hole is in the range of 3mm to 4mm.

5. The connecting plate according to claim 1, characterized in that, The plate includes a first surface and a second surface disposed opposite to each other along the thickness direction of the plate. The plate is punched with a hole along the first surface to the second surface in the same direction to form the connecting hole. A first rounded corner is provided at the connection between the hole wall of the connecting hole and the second surface, and the radius of the first rounded corner is in the range of 0 mm to 1 mm.

6. The connecting plate according to claim 5, characterized in that, The connection between the hole wall and the first surface is provided with a second rounded corner, the radius of which is equal to the sum of the radius of the first rounded corner and the thickness of the plate.

7. A connection structure, characterized in that, The connection structure includes a connector, a fastener, and a connecting plate as described in any one of claims 1 to 6. The connector has a through hole, and the fastener passes through the through hole and the connecting hole in sequence.

8. The connection structure according to claim 7, characterized in that, The fastener is a self-tapping screw.

9. An air conditioner, characterized in that, The air conditioner includes the connection structure as described in any one of claims 7 to 8.

10. The air conditioner according to claim 9, characterized in that, The air conditioner includes an air outlet grille, a front panel, and the fasteners. The air outlet grille serves as the connector, the front panel serves as the connecting plate, and the fasteners securely connect the air outlet grille to the front panel; and / or... The air conditioner includes a right side panel, an electrical control box, and the fasteners. The right side panel serves as the connector, the electrical control box serves as the connecting plate, and the fasteners securely connect the right side panel to the electrical control box; and / or... The air conditioner includes a top cover, a right side panel, and the fasteners. The top cover serves as the connector, the right side panel serves as the connecting plate, and the fasteners securely connect the top cover to the right side panel; and / or... The air conditioner includes a top cover, a left side panel, and the fasteners. The top cover serves as the connector, the left side panel serves as the connecting plate, and the fasteners securely connect the top cover to the left side panel; and / or... The air conditioner includes a chassis, an evaporator side plate, and the fasteners. The chassis serves as the connector, the evaporator side plate serves as the connecting plate, and the fasteners securely connect the chassis to the evaporator side plate; and / or... The air conditioner includes a chassis, a condenser side plate, and the fasteners. The chassis serves as the connector, the condenser side plate serves as the connecting plate, and the fasteners securely connect the chassis to the condenser side plate; and / or... The air conditioner includes an electrical control box and the fastener. The electrical control box includes a box body and a box cover. The box body is configured as the connector, and the box cover is configured as the connecting plate. The fastener securely connects the box body and the box cover.

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