A roof machine
By introducing louvered frames and sealing plate structures into the rooftop unit, and using pressure difference to control gas flow, the problems of low pressure relief and heat exchange efficiency of traditional rooftop units are solved, achieving efficient gas flow and energy utilization, and improving user comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREE ELECTRIC APPLIANCE INC OF ZHUHAI
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional rooftop air conditioners cause increased indoor pressure when introducing fresh air, lack a pressure relief structure, and the separation of the condenser side from the evaporator results in low heat exchange efficiency and low energy utilization.
The first and second chambers are connected by a louvered frame, frame beams and sealing plates. The pressure difference drives the gas flow. After heat exchange in the condenser, the gas is discharged. The crossbeams and longitudinal beams form a chute to improve the gas flow efficiency. Honeycomb holes and round holes are set to simplify the structure and save space.
It improves heat exchange efficiency and energy utilization, avoids increased indoor pressure, achieves adaptive control of gas flow, reduces energy consumption, and improves comfort and air circulation efficiency.
Smart Images

Figure CN224580359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roofing machine technology, and specifically to a roofing machine. Background Technology
[0002] A rooftop air conditioner is a device that integrates air cooling from a cooling source. It is typically installed on the roof of a building, hence the name. It can circulate, control the temperature, purify, and dehumidify indoor air. Due to its convenient installation, easy transportation, and wide range of applications, it is very popular with customers.
[0003] like Figure 1 As shown, conventional rooftop units in the prior art typically have a return air inlet 20 and a fresh air inlet 21. The condenser side 16 is separated by a middle partition 17 and an evaporator 18. When the rooftop unit is running, air is introduced and cooled by the evaporator 18 before being blown out through the air outlet 19.
[0004] However, when traditional rooftop units introduce fresh air, they draw air from the room through the fresh air inlet 21, which increases the indoor pressure. Without a pressure relief structure, the indoor comfort is poor and the unit is inconvenient to use. At the same time, the condenser side 16 is separated from the evaporator 18, so the condenser side 16 does not participate in heat exchange at all, resulting in low heat exchange efficiency and low energy utilization. Utility Model Content
[0005] To address the problems of insufficient pressure relief and heat exchange efficiency in existing rooftop generators, this utility model provides a rooftop generator.
[0006] The present invention adopts the following technical solution.
[0007] This utility model discloses a roofing machine, comprising: a first cavity, a second cavity, a louvered frame, a frame beam, and a sealing plate;
[0008] One side of the frame beam is connected to the first cavity through the louvered frame, and the other side is connected to the second cavity through the sealing plate. A condenser is provided in the second cavity.
[0009] Preferably, the frame beam includes a crossbeam and a longitudinal beam, with one end of the crossbeam connected to the longitudinal beam and the other end connected to the end plate.
[0010] Preferably, the frame beam has a portal frame structure with internal sliding grooves.
[0011] Preferably, the connection between the crossbeam and the sealing plate is provided with a plurality of honeycomb holes I, and the sealing plate is provided with a plurality of honeycomb holes II corresponding to the positions of the honeycomb holes I.
[0012] Preferably, the sealing plate is provided with a plurality of circular holes, which are in communication with the second cavity.
[0013] Preferably, the frame beam has a square hole, which communicates with the first cavity.
[0014] Preferably, the louver frame includes a frame and buckles, with a plurality of buckles provided on one side of the frame.
[0015] Preferably, the buckle is inserted into the square hole, so that the louver frame is fixed to the side of the frame beam facing away from the first cavity.
[0016] Preferably, the louver frame further includes louvers, and the frame is internally connected to a plurality of louvers, wherein the square opening is opened or closed by rotating the louvers.
[0017] Preferably, a partition is provided between the first cavity and the second cavity.
[0018] The beneficial effects of this utility model are as follows, compared with the prior art:
[0019] This utility model connects the first cavity and the second cavity through a louvered frame, frame beam and sealing plate. When fresh air is introduced into the first cavity, the gas can flow into the second cavity and be discharged from the second cavity after heat exchange through the condenser. This not only improves heat exchange efficiency and energy utilization, but also avoids the increase of indoor pressure, releases pressure in time, improves comfort, and accelerates the circulation of indoor air.
[0020] This invention connects the crossbeams and longitudinal beams, allowing the gas in the first chamber to flow through the louvered frame and the gas in the second chamber to flow through the sealing plate. The frame beams form grooves inside, enabling the gas to flow more smoothly and depressurize more efficiently.
[0021] The sealing plate of this utility model has a honeycomb hole on one side and a round hole on the other side. Airflow is achieved through the holes in different directions, which simplifies the structure and saves floor space.
[0022] The louvered frame of this utility model is set on the side of the square hole facing away from the first cavity. When fresh air is introduced, the pressure inside the first cavity is greater than the external pressure, causing the louvers in the louvered frame to pop out to the outside. The gas flows along the frame beam to the sealing plate, connecting the first cavity and the second cavity, thus avoiding pressure increase when fresh air is introduced. When returning air, the pressure inside the first cavity is less than the external pressure, and the louvers are closed by suction to seal the square hole, thus preventing the square hole from being open and affecting the return air efficiency.
[0023] The system achieves adaptive control of gas flow direction, reducing energy consumption. The louvered frame drives gas flow through pressure difference, ensuring heat exchange efficiency when introducing fresh air and returning air. It relies solely on mechanical components for operation without generating additional energy consumption, thus reducing energy consumption.
[0024] This utility model has a partition between the first cavity and the second cavity to ensure the operating efficiency of the roofing machine. Attached Figure Description
[0025] Figure 1 This is a structural diagram of the prior art of this utility model;
[0026] Figure 2 This is the first structural diagram of the roofing machine of this utility model;
[0027] Figure 3 This is the second structural diagram of the roofing machine of this utility model;
[0028] Figure 4 for Figure 3 Enlarged view of A in the middle;
[0029] Figure 5 This is a structural diagram of the louvered frame of this utility model;
[0030] Figure 6 for Figure 5 Enlarged view of B in the middle;
[0031] Figure 7 This is a structural diagram of the crossbeam of this utility model;
[0032] Figure 8 for Figure 7 Enlarged view of C in the middle;
[0033] Figure 9 This is a structural diagram of the longitudinal beam of this utility model;
[0034] Figure 10 for Figure 9 Enlarged view of D;
[0035] Figure 11 This is a structural diagram of the sealing plate of this utility model;
[0036] Figure 12 This is a schematic diagram showing the wind direction of the rooftop unit of this utility model;
[0037] In the diagram: 1. Louvered frame; 2. Crossbeam; 3. Sealing plate; 4. Louver; 5. Frame; 6. Buckle; 7. Longitudinal beam; 8. Honeycomb hole one; 9. Round hole; 10. Slide groove; 11. Partition; 12. First cavity; 13. Second cavity; 14. Honeycomb hole two; 15. Square hole; 16. Condensation side; 17. Middle partition; 18. Evaporator; 19. Air outlet; 20. Return air outlet; 21. Fresh air inlet. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The embodiments described in this application are merely some embodiments of this utility model, not all embodiments. Based on the spirit of this utility model, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this utility model.
[0039] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.
[0040] like Figures 2-12 As shown, this utility model discloses a roofing machine, including: a first cavity 12, a second cavity 13, a louvered frame 1, a frame beam, and a sealing plate 3;
[0041] One side of the frame beam is connected to the first cavity 12 via the louvered frame 1, and the other side is connected to the second cavity 13 via the sealing plate 3. The second cavity 13 is equipped with a condenser.
[0042] This utility model connects the first cavity 12 and the second cavity 13 through the louvered frame 1, the frame beam and the sealing plate 3. When fresh air is introduced into the first cavity 12, the gas can flow into the second cavity 13 and be discharged from the second cavity after heat exchange through the condenser. This not only improves the heat exchange efficiency and energy utilization, but also avoids the continuous increase of indoor pressure and the inability to release pressure in time, thus improving comfort and accelerating the circulation of indoor air.
[0043] The first cavity 12 is an evaporation cavity, and the second cavity 13 is a condensation cavity.
[0044] A partition 11 is provided between the first cavity 12 and the second cavity 13 to separate the first cavity 12 and the second cavity 13, so as to avoid direct airflow affecting the operating efficiency of the roof machine.
[0045] A cover plate is installed on one side of the roof machine at the position corresponding to the frame beam and the sealing plate 3.
[0046] like Figure 2 , Figure 3 , Figure 7 and Figure 9As shown, the frame beam includes a crossbeam 2 and a longitudinal beam 7. The crossbeam 2 is connected to the longitudinal beam 7 at one end near the first cavity 12, and the other end of the crossbeam 2 is provided with a plurality of honeycomb holes 8 corresponding to the position of the second cavity 13.
[0047] Both the crossbeam 2 and the longitudinal beam 7 are portal-shaped structures, which in turn form internal grooves 10, allowing airflow to flow quickly along the grooves 10, resulting in smoother flow and improved pressure relief efficiency.
[0048] like Figure 3 and Figure 11 As shown, one side of the sealing plate 3 is provided with a plurality of honeycomb holes 14 corresponding to the position of the honeycomb hole 8, and the other side of the sealing plate 3 is provided with a plurality of round holes 9, all of which are connected to the second cavity 13.
[0049] The sealing plate 3 of this utility model has a honeycomb hole 14 on one side and a round hole 9 on the other side. Airflow is achieved through holes in different directions, which simplifies the structure and saves floor space.
[0050] In a specific embodiment, the gas in the first cavity 12 flows into the longitudinal beam 7 through the louvered frame 1, flows into the crossbeam 2 along the longitudinal beam 7, enters the sealing plate 3 through the honeycomb hole 1 8 and the honeycomb hole 2 14 in sequence, and flows into the second cavity 13 through the round hole 9, thereby realizing the connection between the first cavity 12 and the second cavity 13.
[0051] like Figure 3 , Figure 9 and Figure 10 As shown, the longitudinal beam 7 is provided with a square hole 15, which is connected to the first cavity 12.
[0052] like Figure 4 , Figure 5 , Figure 6 and Figure 10 As shown, the louver frame 1 includes: a frame 5, a buckle 6, and louvers 4. The frame 5 has multiple buckles 6 on one side. The buckles 6 are inserted into square holes 15, so that the louver frame 1 is set on the side of the longitudinal beam 7 facing away from the first cavity 12. The buckles 6 are used to engage and connect the louver frame 1 and the longitudinal beam 7, which is convenient to operate, avoids the complexity of fixing with screws and other fasteners, simplifies the structure, and makes disassembly convenient.
[0053] The frame 5 is internally connected to multiple louvers 4 via a rotating shaft. The louvers 4 can rotate around the rotating shaft within the frame 5, thereby controlling the opening and closing of the square hole 15 by rotating the louvers 4.
[0054] The end of the louver 4 extends beyond the edge of the square hole 15.
[0055] In a specific embodiment, when the louver 4 rotates toward the inside of the first cavity 12, the louver 4 will be blocked by the outer wall of the longitudinal beam 7, thereby sealing the square hole 15. When the louver 4 rotates away from the first cavity 12, the square hole 15 will open. The rotation of the louver 4 is controlled by the pressure difference between the first cavity 12 and the outside to open or close the square hole 15, thereby achieving adaptive control of the gas flow direction and reducing energy consumption. Compared with the traditional pressure relief structure, the equipment cost is lower, no communication control is required, and it only relies on mechanical parts to operate without generating additional energy consumption, thus reducing energy consumption and making it more convenient to use.
[0056] Preferably, but not limitingly, the number of the latches 6 can be four.
[0057] The longitudinal beam 7 has sheet metal on the side of the square hole 15 away from the crossbeam 2. The sheet metal is used to limit and fix the louver frame 1, making the connection more stable and preventing displacement.
[0058] This invention achieves adaptive control of gas flow direction through the louvered frame 1, thereby reducing energy consumption. The louvered frame 1 drives the gas flow through pressure difference, ensuring heat exchange efficiency when introducing fresh air and returning air. It relies solely on mechanical components for operation without generating additional energy consumption, thus reducing energy consumption.
[0059] like Figure 12 As shown, the working principle of this utility model is as follows: When the roof unit introduces fresh air, the first cavity 12 draws air from the outside, causing the pressure inside the first cavity 12 to be greater than the external pressure. Under the pressure difference, the louvers 4 pop out in the direction away from the first cavity 12, opening the square hole 15. The airflow flows from the louver frame 1 along the longitudinal beam 7 to the transverse beam 2, and then flows through the honeycomb hole 1 8 and the honeycomb hole 2 14 to the sealing plate 3. It then flows from the round hole 9 in the sealing plate 3 to the second cavity 13. The airflow exchanges heat with the condenser in the second cavity 13 and then flows to the outside. This not only reduces the external pressure and improves comfort, but also improves the heat exchange efficiency and energy utilization rate by exchanging heat with the condenser, accelerates the circulation of indoor air, and further improves the heat exchange efficiency.
[0060] When the rooftop unit is recirculating air, the first chamber 12 draws air in from the inside, causing the pressure inside the first chamber 12 to be lower than the external pressure. Under the pressure difference, the louvers 4 are drawn inward by suction until they are blocked by the outer wall of the longitudinal beam 7, which seals the square hole 15. This prevents airflow leakage from the rooftop unit during recirculation, thus affecting the recirculation efficiency. This allows for adaptive adjustment of the airflow direction. The airflow direction is controlled by rotating the louvers 4 through the pressure difference, resulting in low energy consumption and convenient use.
[0061] The beneficial effects of this utility model are compared with the prior art.
[0062] This utility model connects the first cavity and the second cavity through a louvered frame, frame beam and sealing plate. When fresh air is introduced into the first cavity, the gas can flow into the second cavity and be discharged from the second cavity after heat exchange through the condenser. This not only improves heat exchange efficiency and energy utilization, but also avoids the increase of indoor pressure, releases pressure in time, improves comfort, and accelerates the circulation of indoor air.
[0063] This invention connects the crossbeams and longitudinal beams, allowing the gas in the first chamber to flow through the louvered frame and the gas in the second chamber to flow through the sealing plate. The frame beams form grooves inside, enabling the gas to flow more smoothly and depressurize more efficiently.
[0064] The sealing plate of this utility model has a honeycomb hole on one side and a round hole on the other side. Airflow is achieved through the holes in different directions, which simplifies the structure and saves floor space.
[0065] The louvered frame of this utility model is set on the side of the square hole facing away from the first cavity. When fresh air is introduced, the pressure inside the first cavity is greater than the external pressure, causing the louvers in the louvered frame to pop out to the outside. The gas flows along the frame beam to the sealing plate, connecting the first cavity and the second cavity, thus avoiding pressure increase when fresh air is introduced. When returning air, the pressure inside the first cavity is less than the external pressure, and the louvers are closed by suction to seal the square hole, thus preventing the square hole from being open and affecting the return air efficiency.
[0066] The system achieves adaptive control of gas flow direction, reducing energy consumption. The louvered frame drives gas flow through pressure difference, ensuring heat exchange efficiency when introducing fresh air and returning air. It relies solely on mechanical components for operation without generating additional energy consumption, thus reducing energy consumption.
[0067] This utility model has a partition between the first cavity and the second cavity to ensure the operating efficiency of the roofing machine.
[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.
Claims
1. A roofing machine, comprising: The first cavity (12), the second cavity (13), the louvered frame (1), the frame beam and the sealing plate (3) are characterized in that: One side of the frame beam is connected to the first cavity (12) through the louvered frame (1), and the other side is connected to the second cavity (13) through the sealing plate (3). A condenser is provided inside the second cavity (13).
2. A roof-mounting machine according to claim 1, characterized in that: The frame beam includes a crossbeam (2) and a longitudinal beam (7), one end of the crossbeam (2) is connected to the longitudinal beam (7), and the other end is connected to the sealing plate (3).
3. A roof-mounting machine according to claim 1, characterized in that: The frame beam is a portal frame structure with an internal groove (10).
4. A roof-mounting machine according to claim 2, characterized in that: The connection between the crossbeam (2) and the sealing plate (3) is provided with a plurality of honeycomb holes (8), and the sealing plate (3) is provided with a plurality of honeycomb holes (14) corresponding to the positions of the honeycomb holes (8).
5. A roof-mounting machine according to claim 1, characterized in that: The sealing plate (3) is provided with a plurality of round holes (9), and the round holes (9) are connected to the second cavity (13).
6. A roof-mounting machine according to claim 1, characterized in that: The frame beam is provided with a square hole (15), which is connected to the first cavity (12).
7. A roofing machine according to claim 6, characterized in that: The louvered frame (1) includes a frame (5) and buckles (6), with a plurality of buckles (6) provided on one side of the frame (5).
8. A roofing machine according to claim 7, characterized in that: The buckle (6) is inserted into the square hole (15) to fix the louver frame (1) to the side of the frame beam facing away from the first cavity (12).
9. A roofing machine according to claim 7, characterized in that: The louvered frame (1) further includes: louvers (4), and the frame (5) is screwed together with a plurality of louvers (4), and the square hole (15) is opened or closed by rotating the louvers (4).
10. A roofing machine according to claim 1, characterized in that: A partition (11) is provided between the first cavity (12) and the second cavity (13).