Wall-mounted fresh air conditioner
By integrating the fresh air unit with the electronic control unit, the problems of increased horizontal size and high installation complexity of the air conditioner are solved, achieving a compact layout of the air conditioner and simplifying the assembly process, thereby reducing costs and complexity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHANGHONG AIR CONDITIONER CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-21
AI Technical Summary
The separate design of the fresh air unit and electronic control components in existing air conditioners leads to an increase in the horizontal size of the air conditioner, higher installation complexity, and increased wiring costs and routing difficulties.
The design integrates the fresh air unit and the electrical control unit, making reasonable use of the limited space of the air conditioner. The fresh air unit and the electrical control unit are electrically connected in the same cavity, and the cables are fixed by the cable clamp, simplifying the wiring structure.
To achieve a more compact layout for air conditioners, reduce the number of parts, lower assembly complexity and wiring costs, and improve assembly efficiency.
Smart Images

Figure CN224151056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning technology, and in particular to a wall-mounted fresh air air conditioner. Background Technology
[0002] As people pay increasing attention to indoor air quality, modern room air conditioners are generally equipped with fresh air systems to achieve indoor-outdoor ventilation by introducing fresh outdoor air, thereby improving air circulation in enclosed environments. However, the design of existing air conditioner fresh air systems still faces significant technical bottlenecks, which restrict the miniaturization, cost reduction, and efficient production of these products.
[0003] Currently, in mainstream technical solutions, the fresh air unit and the air conditioning electronic control component are mostly designed as separate units. For example, Chinese utility model patent CN214038664U discloses a fresh air base and an air conditioner. The air conditioner in this patent includes a base, a fresh air base, an electronic control box base, electronic control components, and a fresh air unit. Along the length of the base, the fresh air base is detachably mounted at one end of the base, the electronic control box base is mounted at the other end of the base, the fresh air unit is mounted on the fresh air base, and the electronic control component is mounted on the electronic control box base. While the independent installation of the fresh air unit and electronic control component meets basic functional requirements, it exposes the following technical defects:
[0004] 1. The split layout requires reserved installation space for fresh air unit (such as centrifugal fan, filter assembly) and electrical control box (including PCB board, wiring terminals, etc.) in the length direction of the unit, which forces the horizontal size of the air conditioner to increase. This not only increases the amount of shell material used, but also affects the flexibility of indoor installation due to the bulky shape.
[0005] 2. The fresh air unit is far from the electrical control components. The fresh air unit is connected to the electrical control components at a distance through long-distance cables, which not only increases the cost of the cables, but also requires a separate design of the wiring route. For example, additional auxiliary fixing structures such as cable trays and clips are needed to prevent the cables from coming loose, which indirectly increases the assembly complexity. Utility Model Content
[0006] To address the technical problems of large size and complex installation of existing fresh air conditioners, this utility model provides a wall-mounted fresh air conditioner with an integrated design of fresh air device and electrical control components.
[0007] The technical solution adopted by this utility model to solve its technical problem is:
[0008] A wall-mounted fresh air conditioner includes an air conditioner base and a fresh air component and an electrical control component installed on the air conditioner base. It also includes a mounting body, which is installed at one end of the length direction of the air conditioner base. Along the length direction of the air conditioner base, the mounting body has a first cavity and a second cavity that are independent of each other and close to each other. The electrical control component is installed in the first cavity, and the fresh air component is installed in the second cavity. The first cavity has an inlet hole and an outlet hole that penetrate the inner wall and the outer wall of the first cavity. The fresh air component and the electrical control component are electrically connected.
[0009] Furthermore, the second cavity and the first cavity are arranged sequentially along the direction from the location of the mounting base to the other end of the air conditioner base.
[0010] Furthermore, the fresh air assembly includes a centrifugal fan and a filter. The second cavity has an air inlet and an air outlet that penetrate the inner and outer walls of the second cavity. The centrifugal fan and the filter are arranged sequentially in the second cavity. Air enters through the air inlet, passes through the centrifugal fan and the filter in sequence, and is discharged through the air outlet.
[0011] Furthermore, the second cavity includes a first cavity and a second cavity that are interconnected. The mounting base includes a first base, a second base, and a third base. The first base and the second base are sealed together, forming a first cavity between them. The air inlet is connected to the first cavity. A centrifugal fan is installed in the first cavity. The third base is sealed together with the second base, forming a second cavity between them. A filter is installed in the second cavity, dividing the second cavity into a first region and a second region. The first region is connected to the first cavity, and the second region is connected to the air outlet.
[0012] Furthermore, the second cavity has a strip-shaped opening that penetrates the inner and outer walls of the second cavity. The front end of the filter element can be detachably inserted into the strip-shaped opening, and the rear end of the filter element has a sealing structure for sealing the strip-shaped opening.
[0013] Furthermore, the outer wall of the third body is fitted with a wire clamp for securing the cables of the electrical control components.
[0014] Furthermore, at least one mounting ear is provided on one side of the mounting base, and a first through hole is provided on the mounting ear. A screw post is provided on the air conditioner base, and a first threaded hole is provided on the screw post. The first screw also includes a first screw, the head of which passes through the first through hole and is threaded into the first threaded hole. The tail of the first screw presses against the mounting ear. At least one pin is provided on the side of the mounting base opposite to the mounting ear, and a corresponding pin hole is provided on the air conditioner base. The pin is inserted into the pin hole.
[0015] Furthermore, the first cavity has an opening on its side, and the electronic control assembly includes a main control circuit board. The main control circuit board is inserted into the first cavity through the opening. The inner side walls of the first cavity are provided with strip-shaped slots that extend along the insertion direction of the main control circuit board. The two opposite sides of the main control circuit board are respectively inserted into the corresponding strip-shaped slots. The assembly also includes a cover plate, which is fixedly installed at the opening to cover the main control circuit board inside the first cavity.
[0016] Furthermore, it also includes a middle frame, which is installed on the air conditioner base and covers the mounting body. The middle frame has a clearance opening corresponding to the opening. There is a gap between the inner surface of the middle frame and the edge of the opening. One side of the cover plate has an insert, which extends along the edge of the cover plate and is inserted into the gap between the middle frame and the edge of the opening. The side of the cover plate opposite to the insert is provided with a second through hole. The edge of the opening of the first cavity is provided with a second threaded hole. It also includes a second screw. The head of the second screw passes through the second through hole and is threaded into the second threaded hole. The tail of the second screw presses against the cover plate.
[0017] The beneficial effects of this utility model are:
[0018] Compared to existing technologies where the fresh air assembly and electrical control assembly are separately located at opposite ends of the air conditioner base, forcing an increase in the lateral dimensions of the air conditioner, this invention integrates the fresh air assembly and electrical control assembly into a single design. This design makes efficient use of limited space, resulting in a more compact layout for the air conditioner. The closer proximity of the fresh air assembly to the electrical control assembly shortens the wiring length, eliminating the need for separate wiring channels and reducing wiring complexity. Furthermore, the integrated design reduces the number of parts used in the entire unit, improving assembly efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the mounting base of this utility model installed on an air conditioner base;
[0020] Figure 2 This is a structural schematic diagram of the mounting base;
[0021] Figure 3 This is a structural schematic diagram of the mounting base from another perspective;
[0022] Figure 4 This is an exploded view of the mounting base;
[0023] Figure 5 This is a structural diagram of the third body;
[0024] Figure 6 This is a structural diagram of the third body from another perspective;
[0025] Figure 7 This is a structural diagram of the air conditioner base;
[0026] Figure 8 This is a schematic diagram of the structure of the mounting bracket and the air conditioner base.
[0027] Figure 9 yes Figure 8 A partial structural diagram of A in the middle;
[0028] Figure 10 This is a schematic diagram of the structure of the middle frame covering the air conditioner base;
[0029] Figure 11 Is Figure 10 A structural diagram showing the installation of the cover plate and filter elements on the basis;
[0030] Figure 12 This is a structural schematic diagram of the cover plate;
[0031] Figure 13 This is a schematic diagram showing the fit between the cover plate, the middle frame, and the mounting base;
[0032] The diagram is labeled as follows: 1-Air conditioner base, 2-Mounting base, 2a-First base, 2b-Second base, 2c-Third base, 3-First cavity, 4-Second cavity, 5-Inlet hole, 6-Outlet hole, 7-Centrifugal fan, 8-Filter, 9-Air inlet, 10-Air outlet, 11-Strip opening, 12-Wire clamping plate, 13-Mounting ear, 14-First through hole, 15-First threaded hole, 16-Pin, 17-Pin hole, 18-Opening, 19-Main control circuit board, 20-Strip slot, 21-Cover plate, 22-Middle frame, 23-Insertion piece, 24-Second through hole, 25-Second threaded hole. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the present invention will be further described below with reference to the accompanying drawings.
[0034] First, it should be stated that the technical solutions of the embodiments of this application are clearly and completely described. The described embodiments are only some of the embodiments of this application, and not a limitation of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0035] In the description of this utility model, it should be understood that the terms "first", "second", "upper", "lower", "left", "right", "inner", "outer", "axial" or "radial" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and are not intended to indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.
[0036] Reference Figures 1 to 13 This utility model provides a wall-mounted fresh air air conditioner.
[0037] like Figure 1 As shown, this embodiment provides a wall-mounted fresh air conditioner, including an air conditioner base 1 and a fresh air component and an electrical control component installed on the air conditioner base 1. It also includes a mounting body 2, which is installed at one end of the length direction of the air conditioner base 1. Along the length direction of the air conditioner base 1, the mounting body 2 has a first cavity 3 and a second cavity 4 that are independent of each other and close to each other. The electrical control component is installed in the first cavity 3, and the fresh air component is installed in the second cavity 4. The first cavity 3 has an inlet hole 5 and an outlet hole 6 that penetrate the inner wall and the outer wall of the first cavity 3. The fresh air component and the electrical control component are electrically connected.
[0038] This embodiment integrates the fresh air unit and the electrical control unit into a single design, making reasonable and effective use of limited space to achieve a more compact layout for the air conditioner. The fresh air unit is closer to the electrical control unit, which can shorten the length of the wires and eliminate the need for a separate wiring channel, thus reducing the difficulty of wiring. The integrated design also reduces the number of parts used in the whole unit, improving the assembly efficiency of the whole unit.
[0039] like Figure 1 As shown, in some embodiments, the second cavity 4 and the first cavity 3 are arranged sequentially along the direction from the location of the mounting base 2 to the other end of the air conditioner base 1. Here, the first cavity 3 is positioned between the second cavity 4 and the air conditioner evaporator, which shortens both the length of the connecting wires between the electronic control component and the fresh air component, and the length of the connecting wires between the electronic control component and electrical components such as the air conditioner evaporator, making the whole unit more compact and greatly reducing the difficulty of wiring. This embodiment is a preferred example. In addition, the first cavity 3 and the second cavity 4 can also be arranged sequentially along the direction from the location of the mounting base 2 to the other end of the air conditioner base 1. Although the electronic control component is located outside the fresh air component, which increases the length of the connecting wires between the electronic control component and electrical components such as the air conditioner evaporator, the length of the connecting wires between the electronic control component and the fresh air component is not affected. This is a slightly less effective technical solution.
[0040] like Figures 2 to 5As shown, in some embodiments, the fresh air assembly includes a centrifugal fan 7 and a filter 8. The second cavity 4 has an air inlet 9 and an air outlet 10 penetrating the inner and outer walls of the second cavity 4. The centrifugal fan 7 and the filter 8 are sequentially arranged inside the second cavity 4. Air enters through the air inlet 9, passes through the centrifugal fan 7 and the filter 8 in sequence, and is discharged through the air outlet 10. In this scheme, the air passes through the air inlet 9, the centrifugal fan 7, the filter 8, and the air outlet 10 in sequence. Of course, in order to increase the filtration effect, avoid dust accumulation on the centrifugal fan 7, and extend its service life, a filter 8 can also be set before the centrifugal fan 7 to ensure that the incoming air passes through the filter 8 before entering the centrifugal fan 7, is drawn in by the centrifugal fan 7, and is discharged into the room through the filter 8. In this scheme, the air passes through the air inlet 9, the filter 8, the centrifugal fan 7, the filter 8, and the air outlet 10 in sequence.
[0041] like Figure 4 As shown, in some embodiments, the second cavity 4 includes a first cavity and a second cavity that are interconnected. The mounting base 2 includes a first base 2a, a second base 2b, and a third base 2c. The first base 2a and the second base 2b are sealed together, forming a first cavity between them. The air inlet 9 is connected to the first cavity. The centrifugal fan 7 is installed in the first cavity. The third base 2c is sealed together with the second base 2b, forming a second cavity between them. The filter element 8 is installed in the second cavity, dividing the second cavity into a first region and a second region. The first region is connected to the first cavity, and the second region is connected to the air outlet 10.
[0042] In this embodiment, the mounting base 2 is designed in sections, including a first base 2a, a second base 2b, and a third base 2c. The first base 2a is dedicated to mounting the centrifugal fan 7 (a high-vibration component), forming an independent first cavity to reduce vibration transmission to the electronic control components or the filter element 8. The second base 2b serves as a structural support plate, simultaneously separating the area where the centrifugal fan 7 is located from the area where the filter element 8 is located, reducing the transmission of vibration from the centrifugal fan 7 to the area where the electronic control components are located. The third base 2c has a first cavity 3 for mounting the main control circuit board 19. The third base 2c and the second base 2b are sealed together to form a second cavity for mounting the filter element 8, allowing the electronic control components and the fresh air components to overlap in three-dimensional space, reducing the overall lateral dimension of the unit.
[0043] Furthermore, the modular design allows for simple molded injection molding, facilitating demolding (eliminating the need for complex core-pulling structures). This reduces mold costs and improves mass production yield. The centrifugal fan 7, filter 8, and electrical control components can be simultaneously installed into their corresponding cavities and then assembled as a whole, improving assembly efficiency.
[0044] For the sealing connection between the first seat 2a and the second seat 2b, it is optional that they are connected by bolts, with a sealing ring provided on the mating surface between the first seat 2a and the second seat 2b to achieve a seal. Alternatively, they can be connected by snap-fit, or a combination of snap-fit and bolts can be used. For example, a snap protrusion can be provided on the first seat 2a, and a snap groove can be provided on the second seat 2b. The snap protrusion can be deformed to press into the snap groove, thus achieving the connection. The sealing connection between the second seat 2b and the third seat 2c can be configured similarly to that of the first seat 2a and the second seat 2b. Besides the design of this embodiment, the second cavity 4 can also be configured as an empty cavity, with the centrifugal fan 7 and the filter element 8 located in the same cavity.
[0045] like Figure 10 and Figure 11 As shown, in some embodiments, the second cavity has a strip-shaped opening 11 penetrating both the inner and outer walls of the second cavity. The front end of the filter element 8 is detachably inserted into the strip-shaped opening 11, and the end of the filter element 8 has a sealing structure for sealing the strip-shaped opening 11. The detachable insertion of the front end of the filter element 8 into the strip-shaped opening 11 facilitates both installation and replacement. Optionally, a sealing ring can be provided at the end of the filter element 8 to seal the gap between the filter element 8 and the strip-shaped opening 11.
[0046] like Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, a pressure plate 12 is installed on the outer wall of the third housing 2c for fixing the cables of the electronic control components. The outer wall of the third housing 2c has two studs with threaded holes. The cable is placed between the two studs. The pressure plate 12 has a screw through-hole. The screw head passes through the screw through-hole and is threaded into the threaded hole. The screw tail presses the pressure plate 12 against the studs, thereby limiting the cable position.
[0047] like Figure 3 , Figure 7 , Figure 8 and Figure 9As shown, in some embodiments, regarding how the mounting base 2 is installed on the air conditioner base 1, optionally, the mounting base 2 has at least one mounting ear 13 on one side, preferably two mounting ears 13. The mounting ear 13 has a first through hole 14. The air conditioner base 1 has a corresponding screw post with a first threaded hole 15 and a first screw. The head of the first screw passes through the first through hole 14 and is threaded into the first threaded hole 15. The tail of the first screw presses against the mounting ear 13. The mounting base 2 itself has at least one pin 16 on the side opposite to the mounting ear 13, preferably two pins 16. The air conditioner base 1 has corresponding pin 16 holes 17, and the pins 16 are inserted into the pin 16 holes 17. Besides this installation method, the mounting base 2 can be directly fixed to the air conditioner base 1 using screws or bolts.
[0048] like Figure 6 , Figure 10 and Figure 11 As shown, in some embodiments, the first cavity 3 has an opening 18 on its side. The electronic control assembly includes a main control circuit board 19, which is inserted into the first cavity 3 through the opening 18. The inner side walls of the first cavity 3 are provided with strip-shaped slots 20 extending along the insertion direction of the main control circuit board 19. The opposite sides of the main control circuit board 19 are respectively inserted into the corresponding strip-shaped slots 20. A cover plate 21 is also included, which is fixedly disposed at the opening 18 and can be fixed using snap-fit, screw connection, or bolt connection, to cover the main control circuit board 19 inside the first cavity 3. The strip-shaped slots 20 facilitate the installation and fixation of the main control circuit board 19, and also facilitate its disassembly for maintenance. In addition to the design of this embodiment, the main control circuit board 19 can also be fixed inside the first cavity 3 by screws or clips.
[0049] like Figure 12 and Figure 13As shown, in some embodiments, a middle frame 22 is also included. The middle frame 22 is mounted on the air conditioner base 1 and covers the mounting base 2. The middle frame 22 has a clearance opening corresponding to the opening 18. The size of the clearance opening should be slightly larger than the size of the opening 18 so that the cover plate 21 can fit with the opening 18. Similarly, the size of the clearance opening should be slightly larger than the size of the strip opening 11 so that the filter element 8 can be inserted into the strip opening 11. There is a gap between the inner surface of the middle frame 22 and the edge of the opening 18. One side of the cover plate 21 has an insert 23. The insert 23 extends along the edge of the cover plate 21 and is inserted into the gap between the middle frame 22 and the edge of the opening 18. The side of the cover plate 21 opposite to the insert 23 is provided with a second through hole 24. The edge of the opening 18 of the first cavity 3 is provided with a second threaded hole 25. A second screw is also included. The head of the second screw passes through the second through hole 24 and is threaded into the second threaded hole 25. The tail of the second screw presses against the cover plate 21. In this embodiment, instead of using a dedicated slot for mounting the insert 23, the natural gap between the middle frame 22 and the edge of the opening 18 is used to fix the insert 23 of the cover plate 21. This eliminates the need to create a slot on the middle frame 22 or the mounting base 2, reducing the difficulty of injection molding. Assembly is also simplified, requiring only the insert 23 to be inserted into the gap and the cover plate 21 to be locked on one side by the second screw.
Claims
1. A wall-mounted fresh air conditioner, comprising an air conditioner base (1) and a fresh air assembly and an electrical control assembly mounted on the air conditioner base (1), characterized in that, It also includes a mounting base (2), which is installed at one end of the length direction of the air conditioner base (1). Along the length direction of the air conditioner base (1), the mounting base (2) has a first cavity (3) and a second cavity (4) that are independent of each other and close to each other. The electrical control component is installed in the first cavity (3) and the fresh air component is installed in the second cavity (4). The first cavity (3) has an inlet hole (5) and an outlet hole (6) that penetrate the inner wall and outer wall of the first cavity (3). The fresh air component is electrically connected to the electrical control component.
2. The wall-mounted fresh air air conditioner of claim 1, wherein, Along the direction from the location of the mounting base (2) to the other end of the air conditioner base (1), the second cavity (4) and the first cavity (3) are arranged in sequence.
3. The wall-mounted fresh air air conditioner of claim 1, wherein, The fresh air assembly includes a centrifugal fan (7) and a filter (8). The second cavity (4) has an air inlet (9) and an air outlet (10) that penetrate the inner and outer walls of the second cavity (4). The centrifugal fan (7) and the filter (8) are arranged in sequence in the second cavity (4). Air enters through the air inlet (9), passes through the centrifugal fan (7) and the filter (8) in sequence, and is discharged through the air outlet (10).
4. The wall-mounted fresh air air conditioner of claim 3, wherein, The second cavity (4) includes a first cavity and a second cavity that are interconnected. The mounting base (2) includes a first base (2a), a second base (2b) and a third base (2c). The first base (2a) and the second base (2b) are sealed together, forming a first cavity between the first base (2a) and the second base (2b). The air inlet (9) is connected to the first cavity. The centrifugal fan (7) is installed in the first cavity. The third base (2c) and the second base (2b) are sealed together, forming a second cavity between the second base (2b) and the third base (2c). The filter element (8) is installed in the second cavity. The filter element (8) divides the second cavity into a first region and a second region. The first region is connected to the first cavity, and the second region is connected to the air outlet (10).
5. The wall-mounted fresh air air conditioner according to claim 4, characterized in that, The second cavity has a strip opening (11) that penetrates the inner and outer walls of the second cavity. The front end of the filter element (8) is detachably inserted into the strip opening (11), and the end of the filter element (8) has a sealing structure for sealing the strip opening (11).
6. The wall-mounted fresh air air conditioner according to claim 4, characterized in that, The outer wall of the third body (2c) is fitted with a wire clamp (12) for fixing the cables of the electrical control components.
7. The wall-mounted fresh air air conditioner of claim 1, wherein, At least one mounting ear (13) is provided on one side of the mounting base (2). A first through hole (14) is provided on the mounting ear (13). A screw post is provided on the air conditioner base (1). A first threaded hole (15) is provided on the screw post. A first screw is also provided. The head of the first screw passes through the first through hole (14) and is threaded into the first threaded hole (15). The tail of the first screw presses against the mounting ear (13). At least one pin (16) is provided on the side of the mounting base (2) opposite to the mounting ear (13). A pin hole (17) is provided on the air conditioner base (1). The pin (16) is inserted into the pin hole (17).
8. The wall-mounted fresh air air conditioner of claim 1, wherein, The first cavity (3) has an opening (18) on its side. The electronic control component includes a main control circuit board (19). The main control circuit board (19) is inserted into the first cavity (3) through the opening (18). The first cavity (3) has strip-shaped slots (20) on its two opposite sides. The strip-shaped slots (20) extend along the insertion direction of the main control circuit board (19). The two opposite sides of the main control circuit board (19) are respectively inserted into the corresponding strip-shaped slots (20). The first cavity (3) also includes a cover plate (21). The cover plate (21) is fixedly installed at the opening (18) to cover the main control circuit board (19) inside the first cavity (3).
9. The wall-mounted fresh air air conditioner of claim 8, wherein, It also includes a middle frame (22), which is installed on the air conditioner base (1) and covers the mounting body (2). The middle frame (22) has a clearance opening corresponding to the opening (18). The inner surface of the middle frame (22) has a gap with the edge of the opening (18). The cover plate (21) has a insert (23) on one side. The insert (23) extends along the edge of the cover plate (21) and is inserted into the gap between the middle frame (22) and the edge of the opening (18). The cover plate (21) itself has a second through hole (24) on the side opposite to the insert (23). The edge of the opening (18) of the first cavity (3) is provided with a second threaded hole (25). It also includes a second screw. The head of the second screw passes through the second through hole (24) and is threaded with the second threaded hole (25). The tail of the second screw presses against the cover plate (21).
Citation Information
Patent Citations
Fresh air base and air conditioner
CN214038664U