A combination air conditioning unit
The air conditioning unit design, which combines integrated profiles with snap-fit connectors, solves the problems of cold bridge effect and air leakage rate in the connection of air conditioning unit panels, achieving efficient and aesthetically pleasing air conditioning unit panel connection, and improving thermal insulation performance and construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANTONG HUAXIN CENT AIR CONDITIONER
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-10
AI Technical Summary
The existing air conditioning unit panel connection structure has problems such as cold bridge effect, high air leakage rate, low construction efficiency and unsightly appearance.
The system uses integrated profiles and snap-fit connectors to enable rapid vertical and horizontal splicing of air conditioning panels. The profiles and panels are integrally foamed and molded, and the connectors do not require fasteners. The snap-fit self-locking structure ensures sealing and strength.
It improves the insulation and sealing performance of the air conditioning unit, reduces energy consumption and air leakage rate, simplifies the construction process, and enhances the appearance and structural stability.
Smart Images

Figure CN122359908A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of air conditioning units, and in particular relates to a modular air conditioning unit. Background Technology
[0002] Air conditioning units are core terminal equipment in central air conditioning systems, and the connection structure of their panels directly determines the equipment's insulation performance, sealing performance, structural strength, and ease of installation. Currently, the mainstream panel connection methods for air conditioning units in the industry are traditional frame-plate connection structures and frameless connection structures.
[0003] Traditional frame-panel connection structures rely on assembling an aluminum alloy profile frame into a box skeleton first, and then embedding polyurethane foam wall panels into the frame, which are then fixed by fasteners, sealing strips and decorative strips. In this structure, the metal profile directly runs through the inside and outside of the panel, forming a heat conduction path, resulting in a significant cold bridge effect. This reduces the insulation performance of the air conditioning box and increases the energy consumption of the air conditioning system. At the same time, the assembly process of this structure is cumbersome, requiring step-by-step installation, with a large number of fasteners, resulting in low on-site construction efficiency.
[0004] Some improved solutions adopt a frameless design with direct panel splicing. However, this connection method often involves fixing the panel with external connectors such as corner brackets and bolts after the panel ends are turned up. The connectors are exposed inside or outside the cabinet, which not only affects the aesthetics but also makes them susceptible to corrosion from contact with air. At the same time, the foam filling material of the panel has poor adhesion to the connectors, and air convection channels are easily formed at the splicing gaps, resulting in increased air leakage and poor cold bridge insulation. Summary of the Invention
[0005] The purpose of this invention is to overcome the deficiencies in the prior art and provide a modular air conditioning unit that achieves a fast, high-strength, and cold-bridge-free connection between the air conditioning unit panels.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a combined air conditioning unit, comprising multiple air conditioning unit panels, profiles disposed at the ends of the air conditioning panels, and a first connector and a second connector; The profile is an integral structure, including an assembly section, an extension section and a snap-fit part. The extension section extends outward in an L-shape and forms a groove with the snap-fit part. The end of the snap-fit part has a first hook. The first connector is used to connect the profiles of two vertically spliced air conditioning panels. Its structure is L-shaped, with protruding second hooks at both ends. The second hooks are inserted into the slots of the profiles on both sides and cooperate with the first hooks to form a self-locking mechanism. The second connector is used to connect the profiles of two horizontally spliced air conditioning panels. Its structure is straight, with third hooks at both ends. The third hooks are inserted into the slots of the profiles on both sides and cooperate with the first hooks to form a self-locking mechanism.
[0007] Preferably, the air conditioning panel is a sandwich insulation panel, comprising an outer panel, an inner panel, and a middle foamed insulation core material.
[0008] Preferably, the profile is integrally pre-embedded during the air conditioner panel foaming process, and the assembly section of the profile is tightly integrated with the outer panel, inner panel and foamed insulation core material into a whole.
[0009] Preferably, the first connector is further provided with a limiting protrusion, which is located on the side of the second hook and forms a notch between it and the second hook to accommodate the first hook.
[0010] Preferably, the first hook, the second hook, and the third hook are all right-angled triangular structures, with one side being a right-angled anti-detachment surface and the other side being a guide slope. The right-angled anti-detachment surface of the first hook and the right-angled anti-detachment surface of the second hook cooperate with each other to achieve self-locking for vertical splicing, and the right-angled anti-detachment surface of the first hook and the right-angled anti-detachment surface of the third hook cooperate with each other to achieve self-locking for horizontal splicing.
[0011] Preferably, the profile is an engineering plastic or a thermally broken composite material, and does not form a metal thermal conduction path that runs through the inside and outside of the panel.
[0012] Compared with the prior art, the combined air conditioning unit disclosed in this invention has the following beneficial effects: The profile and panel are integrally foamed and molded, and on-site assembly only requires the insertion of connectors to complete the splicing. There is no need for on-site drilling or fastener installation, which greatly shortens the construction cycle and reduces labor costs. At the same time, the structure has a high tolerance for processing errors and is compatible with panel prefabricated parts of different precision, which reduces the difficulty of assembly. One type of profile structure, combined with two types of connectors, can meet both vertical and horizontal splicing requirements. This not only reduces costs but also eliminates the need for male and female joints, effectively reducing assembly difficulty. The profiles and connectors use a snap-fit design, eliminating the need for external fasteners such as bolts and rivets. After splicing, there are no exposed parts at the joints, which avoids the problems of fastener corrosion and loosening, and also eliminates the gaps between the fasteners and the panel, significantly reducing the air leakage rate of the enclosure and improving the sealing performance. At the same time, the design without exposed parts makes the enclosure look flat and beautiful, and easy to clean and maintain. The profile is designed with a low thermal conductivity material and is embedded inside the air conditioner panel. There is no exposed metal heat conduction path, which completely solves the cold bridge problem of traditional metal frame connection, effectively avoids condensation in the cabinet and reduces the energy consumption of the air conditioning system. The profiles, foam filling material, and inner and outer panels are integrated to form a solid whole. The hook-and-loop connection of the connectors forms a stable right-angle node. The overall structure has high strength and is not prone to loosening or deformation after long-term use, which improves the service life and stability of the enclosure. Attached Figure Description
[0013] Figure 1 This is a structural diagram of vertical splicing in an embodiment of the present invention; Figure 2 This is a structural diagram of horizontal splicing in an embodiment of the present invention; Figure 3 This is a structural diagram of the profile in an embodiment of the present invention; Figure 4 This is a structural diagram of the first connector in an embodiment of the present invention; Figure 5 This is a structural diagram of the second connector in an embodiment of the present invention. Detailed Implementation
[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0015] The present invention discloses a modular air conditioning unit, which is composed of multiple air conditioning panels 1 vertically or horizontally spliced together, wherein the vertical splicing is described in detail below. Figure 1 See horizontal splicing. Figure 2 .
[0016] Specifically, the air conditioner panel is provided with profiles 2 around its perimeter, and also includes a first connector 3 and a second connector 4. When vertically spliced, the profiles of the two sets of air conditioner panels that are vertically arranged are connected by the first connector, while when horizontally spliced, the profiles of the two sets of air conditioner panels that are horizontally arranged are connected by the second connector.
[0017] The air conditioning panel is a sandwich insulation panel, including an outer panel 11, an inner panel 12, and a middle foamed insulation core material 13. The outer panel is a metal sheet (such as galvanized steel sheet, color steel sheet, etc.), which forms the outer surface of the air conditioning unit and has both protective and structural support functions. The inner panel is also a metal sheet, which forms the inner surface of the air conditioning unit and is arranged parallel to the outer panel. The middle foamed insulation core material is a foamed filling material that fills the space between the outer panel and the inner panel. Polyurethane foam, rock wool, and other materials are preferred, which have the functions of heat insulation, sound insulation and noise reduction.
[0018] like Figure 3As shown, the profile is an integral irregular structure, made of engineering plastic with low thermal conductivity or thermally broken composite material, which can completely block cold bridges and improve thermal insulation performance. The profile has an assembly section 21, an extension section 22 and a snap-fit part 23. The profile is assembled to the end of the air conditioner panel through the assembly section, wrapping the end edge of the air conditioner panel, closely fitting with the outer panel and inner panel, and directly contacting the foam filling material. After integral foaming and molding, the profile and the air conditioner panel form an inseparable whole. The extension section extends outward in an L-shape. The snap-fit part is located at the end of the extension section and forms a slot 24 with the extension section. The snap-fit part is an elastic structure with a protruding first hook 25 at the end. The first hook is a right-angled triangular structure with a guide slope on the outside for easy assembly with the connector during installation and a right-angled anti-detachment surface on the inside for self-locking after snapping.
[0019] like Figure 4 As shown, the first connector is L-shaped with protruding second hooks 31 at both ends. The second hooks are inserted into the slots of the vertically arranged side profiles and cooperate with the first hooks to form a self-locking mechanism. The second hook is also a right-angled triangular structure with a guide bevel on one side for easy assembly and a right-angled anti-dislodgement surface on the other side for easy self-locking after cooperation with the first hook. In addition, the first connector is also provided with a limiting protrusion 32. The limiting protrusion is located on the side of the second hook and forms a notch 33 between it and the second hook to accommodate the first hook. The limiting protrusion provides limiting protection for the end of the first hook to prevent the end of the first hook from being lifted by abnormal external force.
[0020] like Figure 5 As shown, the second connector is a straight line with third hooks 41 at both ends. The third hooks are inserted into the slots of the horizontally arranged profiles on both sides, and cooperate with the first hook to form a self-locking mechanism. The third hook is also a right-angled triangular structure, with a guide slope on one side for easy assembly and a right-angled anti-detachment surface on the other side for easy self-locking after cooperation with the first hook.
[0021] The present invention discloses a modular air conditioning unit that uses a single profile with two types of connectors to achieve both vertical and horizontal splicing. Whether splicing vertically or horizontally, the hooks at both ends of the connectors are fully embedded in the slots of the profiles and cooperate with the first hook to form a double limit in the axial and radial directions, preventing loosening or misalignment between the panels. During on-site assembly, it is only necessary to assemble the profiles of the two air conditioning panels vertically or horizontally, and then use the first or second connector to insert from the side to achieve splicing. The entire assembly process does not require additional fasteners, resulting in an aesthetically pleasing design and high assembly efficiency.
[0022] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention and are not intended to limit the technical solutions of the present invention. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of the patent of the present invention.
Claims
1. A modular air conditioning unit, characterized in that: It includes multiple air conditioning unit panels, profiles located at the ends of the air conditioning panels, and a first connector and a second connector; The profile is an integral structure, including an assembly section, an extension section and a snap-fit part. The extension section extends outward in an L-shape and forms a groove with the snap-fit part. The end of the snap-fit part has a first hook. The first connector is used to connect the profiles of two vertically spliced air conditioning panels. Its structure is L-shaped, with protruding second hooks at both ends. The second hooks are inserted into the slots of the profiles on both sides and cooperate with the first hooks to form a self-locking mechanism. The second connector is used to connect the profiles of two horizontally spliced air conditioning panels. Its structure is straight, with third hooks at both ends. The third hooks are inserted into the slots of the profiles on both sides and cooperate with the first hooks to form a self-locking mechanism.
2. The combined air conditioning unit according to claim 1, characterized in that: The air conditioning panel is a sandwich insulation panel, comprising an outer panel, an inner panel, and a middle foamed insulation core material.
3. A combined air conditioning unit according to claim 2, characterized in that: The profile is integrally pre-embedded during the air conditioner panel foaming process, and the assembly section of the profile is tightly integrated with the outer panel, inner panel and foamed insulation core material into a whole.
4. A combined air conditioning unit according to any one of claims 1, characterized in that: The first connector is also provided with a limiting protrusion, which is located on the side of the second hook and forms a notch between it and the second hook to accommodate the first hook.
5. A combined air conditioning unit according to claim 1, characterized in that: The first, second, and third hooks are all right-angled triangular structures, with a right-angled anti-detachment surface on one side and a guide slope on the other side. The right-angled anti-detachment surface of the first hook and the right-angled anti-detachment surface of the second hook cooperate to achieve self-locking for vertical splicing, and the right-angled anti-detachment surface of the first hook and the right-angled anti-detachment surface of the third hook cooperate to achieve self-locking for horizontal splicing.
6. A combined air conditioning unit according to claim 1, characterized in that: The profile is made of engineering plastic or thermally broken composite material, and does not form a metal thermal conduction path that runs through the inside and outside of the panel.