Outdoor unit of centralized range hood
By setting a rotating cover on the top plate of the outdoor unit of the centralized range hood, the oil smoke airflow and wind power are used to automatically clear the snow, solving the problem of snow accumulation in winter, ensuring exhaust efficiency and safety, and reducing costs.
Patent Information
- Application Number
- CN202420153745.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-22
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-01-22
AI Technical Summary
Existing centralized range hood outdoor units are difficult to effectively clean due to accumulated snow in winter, which reduces exhaust efficiency and increases user cleaning costs and safety hazards. Existing solutions have high energy consumption or poor results.
An outdoor unit of a centralized range hood is designed. A rotatably connected cover is provided on the top plate. The exhaust port is automatically opened when the machine is running by utilizing the oil smoke airflow. Accumulated snow is automatically cleared under the action of its own weight and wind. The exhaust port is automatically covered when the machine stops running.
It achieves timely clearing of accumulated snow, ensures smooth smoke exhaust, reduces costs and safety hazards, and avoids the use of additional power sources.
Smart Images
Figure CN222760949U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an outdoor unit of a centralized range hood. Background Art
[0002] Currently, most of the range hoods used in kitchens of houses and apartments are independent of each other. There is no connection between the range hoods of different residents. Users have a lot of arbitrariness in installing the range hoods themselves. Most users directly open holes in the kitchen windows or punch holes in the walls to set the exhaust outlet of the range hood. The oil smoke is discharged directly from the outer wall, causing pollution interference to the residents on the upper and lower floors, and causing oil pollution to the outer wall, while also affecting the overall appearance of the building.
[0003] With the rapid development of economy, more and more high-rise residential buildings are springing up. In order to maintain the appearance of the whole building, many high-rise residential buildings will adopt a centralized smoke exhaust system for centralized smoke exhaust. The system includes indoor range hoods installed in the kitchens of different households on different floors, a public flue installed inside the building, and an outdoor main fan system installed on the top floor of the building. The air outlets of the indoor range hoods are connected to the public flue, and the air outlets of the public flue are connected to the inlet of the outdoor fan system.
[0004] Since the outdoor main fan system is directly placed on the top floor of the outdoor building, the chance of snowing is high in the cold winter, and many outdoor units will set the air outlet directly on the top cover plate. Snow will flow into the outdoor unit through the air outlet and damage the internal components of the outdoor unit; and when there is a lot of snow on the top cover plate, the air outlet is easily blocked. Therefore, the user needs to arrange for someone to take the initiative to clean the snow on the air outlet plate of the outdoor unit on snowy days. The working frequency depends on the snowing time and intensity. If the snowing intensity is large or the snowing time is too long, the personnel may need to clean it frequently, which greatly increases the cost and the cleaning troubles of the user. In addition, the equipment of the outdoor unit is generally placed on the roof, and there are safety hazards when personnel frequently go to the roof. There are also some solutions, which are to increase the speed of the outdoor fan and use the wind force generated by the high-speed rotation of the outdoor fan to blow away the snow. However, for the snow on the surface of the air outlet cover, due to the large gaps between the snow molecules, the air fluid will choose to blow out in the direction with less resistance. Therefore, the high-speed rotation will blow away some of the snow, but when this part of the snow is blown away, the air fluid will be blown out from the air outlet without snow, and the snow on the entire cover cannot be self-cleaned, affecting the exhaust effect of the entire system. There are also some solutions that set a heating element under the top cover, and heat the top cover through the heating element to melt the snow on the top cover, but this method makes the snow melt too slowly, and the bottom heating time is longer, and the energy consumption is higher. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide an outdoor unit of a centralized range hood capable of preventing a large amount of snow from accumulating on the top plate of the shell in view of the above-mentioned prior art.
[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: an outdoor unit of a centralized range hood, comprising an upper shell, a top plate connected to the top of the upper shell, and a smoke exhaust port on the top plate, characterized in that: a cover plate that can cover the smoke exhaust port is rotatably connected to the upper shell, when the outdoor unit is running, the cover plate can rotate under the action of the oil smoke airflow to expose the smoke exhaust port on the top plate, and can also cover the smoke exhaust port on the top plate when the outdoor unit stops running.
[0007] As an improvement, the top plate includes a central connecting plate located in the center, and four trapezoidal connecting side plates connected to the central connecting plate, the four trapezoidal connecting side plates are respectively marked as a first trapezoidal connecting side plate, a second trapezoidal connecting side plate, a third trapezoidal connecting side plate and a fourth trapezoidal connecting side plate, the upper bottom edges of the four trapezoidal connecting side plates are respectively connected to the four sides of the central connecting plate, and the lower bottom edges of the four trapezoidal connecting side plates constitute the four sides of the top plate; the four trapezoidal connecting side plates are inclined and form an angle with the central connecting plate.
[0008] As a further improvement, the smoke exhaust port on the top plate is arranged on four trapezoidal connected side plates; the cover plate includes four side cover plates which are rotatably connected to the top of the four trapezoidal connected side plates, and the four side cover plates are respectively marked as the first side cover plate, the second side cover plate, the third side cover plate and the fourth side cover plate.
[0009] As a further improvement, the shapes and sizes of the first side cover plate, the second side cover plate, the third side cover plate and the fourth side cover plate are respectively the same as the shapes and sizes of the first trapezoidal connecting side plate, the second trapezoidal connecting side plate, the third trapezoidal connecting side plate and the fourth trapezoidal connecting side plate, and are all trapezoidal.
[0010] As a further improvement, both sides of the lower bottom edges of the first side cover plate, the second side cover plate, the third side cover plate and the fourth side cover plate are rotatably pivoted to the four corners of the top plate through rotating shafts.
[0011] As a further improvement, the top plate is provided with limit blocks at the four corners for limiting the rotation angle of the four trapezoidal connecting side plates.
[0012] Compared with the prior art, the advantages of the utility model are: by rotating the connected cover plate on the top plate, when the outdoor unit is running, the cover plate can be rotated under the action of the oil fume airflow to expose the smoke outlet on the top plate, thereby ensuring smooth smoke exhaust, and the snow accumulated on the cover plate can be cleaned in time and effectively, which brings great convenience to the user, and the rotation of the cover plate directly utilizes the effect of the oil fume airflow when the outdoor fan is running, without the need to set up an additional power source, which can greatly reduce the cost; when the outdoor unit stops running, the smoke outlet on the top plate is covered to prevent rain, snow or other debris from entering the interior of the outdoor unit. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the outdoor unit of the centralized range hood in the embodiment of the utility model.
[0014] Figure 2 It is a schematic diagram of the upper shell and top plate structure in an embodiment of the utility model.
[0015] Figure 3 It is a schematic diagram of the structure of the upper shell, top plate and cover plate in the embodiment of the utility model (the cover plate is closed).
[0016] Figure 4 It is a schematic diagram of the structure of the upper shell, top plate and cover plate in the embodiment of the utility model (the cover plate is opened). DETAILED DESCRIPTION
[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0018] like Figure 1 The outdoor unit of the centralized range hood shown in the figure comprises a lower shell 4 and an upper shell 1 connected to each other, and a top plate 2 movably connected to the top of the upper shell 1, a smoke exhaust port is arranged on the top plate 2, and a cover plate which can cover the smoke exhaust port and is located above the top plate 2 is rotatably connected to the upper shell 1. An outdoor fan system (not shown in the figure) is installed inside the lower shell 4; a diffuser (not shown in the figure) connected to the air outlet of the outdoor fan system is arranged inside the upper shell 1.
[0019] In this embodiment, the top plate 2 includes a central connecting plate 21 located in the center, and four trapezoidal connecting side plates 22, 23, 24, 25 connected to the central connecting plate. The upper bottom edges of the four trapezoidal connecting side plates 22, 23, 24, 25 are respectively connected to the four sides of the central connecting plate 21, and the lower bottom edges of the four trapezoidal connecting side plates 22, 23, 24, 25 constitute the four sides of the cover plate; the four trapezoidal connecting side plates 22, 23, 24, 25 are inclined and form an angle with the central connecting plate 21; the smoke exhaust port 2a on the top plate 2 is provided on the four trapezoidal connecting side plates 22, 23, 24, 25. See Figure 2 shown.
[0020] In this embodiment, the cover plate includes four side cover plates which are rotatably connected to the top of four trapezoidal connecting side plates, and the four side cover plates are respectively marked as the first side cover plate 31, the second side cover plate 32, the third side cover plate 33 and the fourth side cover plate 34. The shapes and sizes of the first side cover plate 31, the second side cover plate 32, the third side cover plate 33 and the fourth side cover plate 34 are respectively the same as the shapes and sizes of the first trapezoidal connecting side plate 22, the second trapezoidal connecting side plate 23, the third trapezoidal connecting side plate 24 and the fourth trapezoidal connecting side plate 24, and are all trapezoidal. The lower bottom sides of the first side cover plate 31, the second side cover plate 32, the third side cover plate 33 and the fourth side cover plate 34 are respectively pivotally connected to the four corners of the top plate 2 through the rotating shaft, and the four corners of the top plate 2 are provided with limit blocks 4 for limiting the rotation angle of the four trapezoidal connecting side plates. When the outdoor unit is in operation, the first side cover plate 31, the second side cover plate 32, the third side cover plate 33 and the fourth side cover plate 34 rotate under the action of the oil smoke airflow so that the smoke exhaust ports on the four trapezoidal connecting side plates 22, 23, 24 and 25 are exposed.
[0021] When it snows, there is no air discharge from the public flue, and the four side covers are in a closed state. Snowflakes will fall on the four side covers and the outside of the central connecting plate 21, effectively preventing the snowflakes from falling on the four trapezoidal connecting side plates 22, 23, 24, and 25 and freezing to affect the exhaust efficiency of the entire system. Snow will accumulate outside the four side covers. When users produce oil smoke during cooking at a certain time, the public flue will have air discharge. Under the action of wind, the four side covers will rotate open, and the snow covering them will automatically fall to the outside of the equipment due to gravity, which will not affect the efficiency of the air outlet system. During the continuous exhaust process, the four side covers are all in an open state. See Figure 4 As shown, the falling snowflakes will be blown away by the vertical upward exhaust wind force because of their light weight, and will not fall and cover the four trapezoidal connecting side panels 22, 23, 24, 25 to affect smoke exhaust. When there is no air volume discharged from the public flue, the four side cover plates will cover the smoke exhaust ports on the four trapezoidal connecting side panels 22, 23, 24, 25 under the action of their own weight. Figure 3 shown.
Claims
1. An outdoor unit of a centralized range hood, comprising an upper housing (1), a top plate (2) connected to the top of the upper housing, a smoke exhaust port being provided on the top plate (2), and characterized in that: The upper shell (1) is also rotatably connected to a cover plate capable of covering the smoke exhaust port. When the outdoor unit is in operation, the cover plate can rotate under the action of the oil smoke airflow to expose the smoke exhaust port on the top plate (2). The cover plate can also cover the smoke exhaust port on the top plate (2) when the outdoor unit stops operating.
2. The outdoor unit of the centralized range hood according to claim 1, characterized in that: The top plate (2) comprises a central connecting plate (21) located at the center, and four trapezoidal connecting side plates connected to the central connecting plate (21), the four trapezoidal connecting side plates are respectively marked as a first trapezoidal connecting side plate (22), a second trapezoidal connecting side plate (23), a third trapezoidal connecting side plate (24) and a fourth trapezoidal connecting side plate (25), the upper bottom edges of the four trapezoidal connecting side plates are respectively connected to four sides of the central connecting plate, and the lower bottom edges of the four trapezoidal connecting side plates constitute the four sides of the top plate (2); the four trapezoidal connecting side plates are arranged obliquely and form an angle with the central connecting plate (21).
3. The outdoor unit of the centralized range hood according to claim 2, characterized in that: The smoke exhaust port on the top plate (2) is arranged on four trapezoidal connecting side plates; the cover plate comprises four side cover plates which are rotatably connected above the four trapezoidal connecting side plates, and the four side cover plates are respectively marked as a first side cover plate (31), a second side cover plate (32), a third side cover plate (33) and a fourth side cover plate (34).
4. The outdoor unit of the centralized range hood according to claim 3, characterized in that: The shapes and sizes of the first side cover plate (31), the second side cover plate (32), the third side cover plate (33) and the fourth side cover plate (34) are respectively the same as the shapes and sizes of the first trapezoidal connecting side plate (22), the second trapezoidal connecting side plate (23), the third trapezoidal connecting side plate (24) and the fourth trapezoidal connecting side plate (25), and are all trapezoidal.
5. The outdoor unit of the centralized range hood according to claim 4, characterized in that: The lower sides of the first side cover plate (31), the second side cover plate (32), the third side cover plate (33) and the fourth side cover plate (34) are respectively pivotally connected to the four corners of the top plate (2) via rotating shafts.
6. The outdoor unit of the centralized range hood according to claim 5, characterized in that: Limit blocks for limiting the rotation angles of the four trapezoidal connecting side plates are provided at the four corners of the top plate (2).