Thermostatic roof fan

By introducing a hot and cold water exchange system and filter design into the roof ventilator, the problem of conventional roof ventilators being unable to adjust the air supply temperature is solved, achieving air temperature regulation and freshness.

CN224396776UActive Publication Date: 2026-06-23GUANGDONG MARKWELL ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG MARKWELL ELECTRIC CO LTD
Filing Date
2025-07-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Conventional roof ventilators cannot regulate the supply air temperature, making the indoor temperature susceptible to the influence of outdoor air, thus reducing comfort.

Method used

A temperature-regulating roof fan was designed. By adding cold or hot water to the heat exchanger and using a continuous U-shaped bend design for air heat exchange, combined with filter screen filtration, air temperature regulation and freshness can be achieved.

Benefits of technology

It effectively regulates the temperature of the air entering the house, improves comfort, and keeps the air fresh through the filter.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224396776U_ABST
    Figure CN224396776U_ABST
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Abstract

The utility model discloses a temperature -adjusting type roof fan, including waterproof cover, the top of waterproof cover is with stand fixed connection through screw, the lower extreme of stand is fixedly connected with base, and base center has through -hole, and the edge is equipped with waterproof ring, waterproof ring is fixedly connected with stand outside stand, and the outer edge lower fixed connection of base has mounting seat, and the lower extreme of mounting seat is provided with the edge that protrudes outward, base lower still is provided with frame body, and the support edge of frame body bottom is fixedly connected with the baffle of horizontal setting hollow board, and the inner edge of baffle is fixedly connected with the wind scooper of guiding, and the lower extreme of wind scooper is equipped with motor, and the wind wheel of surrounding motor fixed is equipped with, the outer of wind wheel is equipped with air outlet, and air outlet is a circular ring metal mesh cover, and the upper end of air outlet is fixedly connected with baffle, and the lower extreme middle fixed connection has motor mounting panel, and motor mounting panel is fixedly installed with motor, frame body is provided with heat exchanger, and the outdoor air enters indoor after passing through heat exchanger, can effectively adjust indoor temperature.
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Description

Technical Field

[0001] This utility model relates to the field of roof ventilators, and in particular to a temperature-regulating roof ventilator. Background Technology

[0002] Roof ventilators are common devices installed on rooftops for ventilation. However, conventional roof ventilators can only exhaust indoor air outside the house or bring outdoor air into the house. They cannot regulate the temperature of the air entering the house, which makes the indoor temperature easily affected by the outdoor air, causing it to rise or fall sharply and reducing the comfort of the people inside. Utility Model Content

[0003] The purpose of this invention is to provide a temperature-regulating roof fan to solve the problem that roof fans cannot adjust the supply air temperature.

[0004] This utility model provides a temperature-regulating roof ventilator, including a waterproof cover. The waterproof cover has an inverted bowl-shaped structure with a flat top. The top of the waterproof cover is fixedly connected to a column with screws. The lower end of the column is fixedly connected to a base. The base has a through hole in its center and a waterproof ring is provided on the edge of the base. The waterproof ring is fixedly connected to the column outside the column with screws, and there is a certain gap between the upper end of the waterproof ring and the top surface of the waterproof cover. A mounting base is fixedly connected to the lower edge of the base. The mounting base is a hollow metal frame with an outwardly protruding edge at the lower end. A frame is also provided under the base. A partition is fixedly connected to the support edge at the bottom of the frame. The partition is a horizontally arranged hollow plate. An air guide is fixedly connected to the inner edge of the partition. The air guide is trumpet-shaped, and its diameter gradually decreases from the top to the bottom in a streamlined manner. A motor is provided at the lower end of the air guide, and a fan wheel is arranged around the motor. The fan wheel is fixedly connected to the motor.

[0005] An air outlet is provided outside the wind turbine. The air outlet is a circular metal mesh cover. The upper end of the air outlet is fixedly connected to the partition, and the lower middle end is fixedly connected to the motor mounting plate, on which the motor is fixedly installed. A heat exchanger is installed inside the frame, and outdoor air enters the room after passing through the heat exchanger.

[0006] Furthermore, the heat exchanger is provided with an inlet and an outlet on the outside, and a temperature regulating pipe is provided inside. The temperature regulating pipe adopts a continuous U-shaped bend design and is arranged up and down inside the heat exchanger.

[0007] Furthermore, a heat exchanger mounting bracket is fixedly connected to the inner wall of the frame. The heat exchanger mounting bracket consists of four L-shaped metal strips. The vertical part of the heat exchanger mounting bracket is fixedly connected to the four sides of the frame, and the horizontal part is perpendicular to the inner wall of the frame. The heat exchanger is placed on the horizontal part of the heat exchanger mounting bracket.

[0008] Furthermore, a horizontally arranged connector is fixedly connected to the middle of the inner wall of the frame, and a filter screen mounting groove is fixedly connected to the connector. The filter screen mounting groove is an inwardly open U-shaped frame, in which a filter screen is placed, and the edge of the filter screen is inside the U-shaped opening of the filter screen mounting groove.

[0009] Furthermore, the lower end of the mounting base is provided with an outwardly protruding edge, which is on an inclined plane and has positioning holes.

[0010] This utility model's temperature-regulating roof fan can effectively regulate the temperature of the air entering the house by continuously adding cold or hot water to the heat exchanger, thereby further regulating the air temperature inside the house and increasing human comfort. In addition, this utility model is equipped with a filter screen, which can effectively filter out dust in the air and keep the air fresh. The filter screen adopts a plug-in installation, making it easy to clean and replace. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a cross-sectional view of the present invention.

[0013] Explanation of reference numerals in the attached drawings: 1. Waterproof cover, 2. Column, 3. Waterproof ring, 4. Base, 5. Mounting seat, 6. Frame, 7. Connector, 8. Filter screen mounting slot, 9. Filter screen, 10. Heat exchanger mounting bracket, 11. Heat exchanger, 12. Inlet, 13. Outlet, 14. Temperature regulating pipe, 15. Baffle plate, 16. Air guide ring, 17. Impeller, 18. Motor, 19. Air outlet, 20. Motor mounting plate. Detailed Implementation

[0014] To better understand the purpose, structure, and function of this utility model, a temperature-regulating roof ventilator of this utility model will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described are only for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts relevant to this utility model are shown in the accompanying drawings, not the entire structure.

[0015] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0017] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0018] like Figure 1-2 As shown, this utility model discloses a temperature-regulating roof ventilator, including a waterproof cover 1. The waterproof cover 1 has an inverted bowl-shaped structure with a flat top for rapid rainwater drainage. The top of the waterproof cover 1 is fixedly connected to a column 2 with screws. The lower end of the column 2 is fixedly connected to a base 4. The base 4 is a metal plate with a central through hole. A waterproof ring 3 is provided on the base 4 and is fixedly connected to the column 2 with screws. There is a certain gap between the upper end of the waterproof ring 3 and the top surface of the waterproof cover 1, allowing outside air to enter the temperature-regulating roof ventilator through the gap. The base 4 has a downwardly protruding outer edge, and a mounting seat 5 is fixedly connected to the outer edge. The mounting seat 5 is a hollow metal frame with an inwardly protruding edge at the top, which is fixedly connected to the plane of the base with screws. The lower end of the mounting seat 5 has an outwardly protruding edge, which can be on a horizontal plane or an inclined plane. To accommodate sloping roofs, the mounting base 5 of this invention has an outwardly protruding edge on the sloping plane at its lower end, with positioning holes provided on the edge for fixing to the roof.

[0019] A frame 6 is also fixedly connected to the base 4. The frame 6 is also a hollow frame with a protruding support edge at the top. The support edge of the frame 6 is located inside the base 4 and is fixedly connected to the plane of the base 4 with screws. The bottom of the frame 6 also has a support edge. In order to save space and prevent dust accumulation, the bottom support edge of the frame 6 protrudes inward.

[0020] A horizontally positioned connector 7 is fixedly connected to the middle of the inner wall of the frame 6. A filter screen mounting groove 8 is fixedly connected to the connector 7. The filter screen mounting groove 8 is an inwardly opening U-shaped frame. A filter screen 9 is placed in the filter screen mounting groove 8, with the edge of the filter screen 9 inside the U-shaped opening of the filter screen mounting groove 8. When the filter screen is heavily soiled and needs cleaning or replacement, the filter screen 9 can be removed from the filter screen mounting groove 8, cleaned, and then reinstalled, or a new filter screen 9 can be installed directly.

[0021] A heat exchanger 11 is installed below the filter screen 9. The heat exchanger 11 has an inlet 12 and an outlet 13 on its outer side, and a temperature regulating pipe 14 inside. The temperature regulating pipe 14 adopts a continuous U-shaped bend design and is arranged vertically within the heat exchanger 14. Water enters the temperature regulating pipe 14 through the inlet 12 of the heat exchanger 11 and is discharged through the outlet 13. The heat exchanger 11 is fixed to a heat exchanger mounting bracket 10, which consists of four L-shaped metal strips. The vertical part of the heat exchanger mounting bracket 10 is fixed to the four inner walls of the frame 6, and the horizontal part is perpendicular to the inner wall of the frame 6. The heat exchanger 11 is placed on the horizontal part of the heat exchanger mounting bracket 10. Water below room temperature is continuously added to inlet 12. This water passes through temperature regulating pipe 14 and is discharged from outlet 13. As the water continuously flows through temperature regulating pipe 14, its temperature gradually decreases to near the water temperature. Outdoor air passes around temperature regulating pipe 14, exchanging heat with it. The cooled air then enters the roof. Conversely, if the outdoor temperature is too low, it is necessary to increase the temperature of the intake air. Hot water above the outdoor air temperature can be added to heat exchanger 11. The outdoor air exchanges heat with temperature regulating pipe 14, and the warmed air enters the roof.

[0022] A partition 15 is fixedly connected to the support edge at the bottom of the frame 6. The partition 15 is a horizontally arranged hollow plate. An air guide hood 16 is fixedly connected to the inner edge of the partition 15. The air guide hood 16 is trumpet-shaped, and its diameter gradually decreases from the top to the bottom in a streamlined manner. A motor 18 is installed at the lower end of the air guide hood 16, and a fan wheel 17 is arranged around the motor 18. The fan wheel 17 is fixedly connected to the motor 18. When the motor 18 is energized, it rotates, driving the fan wheel 17 to rotate, creating suction force to draw outdoor air into the room.

[0023] An air outlet 19 is provided outside the impeller 17. The air outlet 19 is a circular metal mesh cover. The upper end of the air outlet 19 is fixedly connected to the partition 15, and the lower middle end is fixedly connected to the motor mounting plate 20. The motor 18 is fixedly installed on the motor mounting plate 20.

[0024] In use, the mounting base 5 is installed on the roof, with the temperature-regulating roof fan base 4, waterproof ring 3, and waterproof cover 1 on the roof, and the rest under the roof. When it is necessary to lower the indoor temperature, cold water at a temperature of 5℃~15℃ is continuously added to the inlet 12, and the temperature of the temperature-regulating pipe 14 gradually decreases to near the temperature of the cold water. The motor 18 is powered on, and the rotation of the motor 18 drives the impeller 17 to rotate. The air pressure in the impeller 17 decreases, and outdoor air is drawn in through the gap between the waterproof ring 3 and the waterproof cover 1, passes downward through the filter screen 9 to filter out dust, and enters the heat exchanger 11 to exchange heat with the temperature-regulating pipe 14, thus lowering the air temperature. The cooled air continues to move towards the center of the impeller 17 under the action of air pressure until it enters the center of the impeller 17, and is then pushed by the blades of the impeller 17 through the outlet 19 into the room, gradually lowering the indoor temperature.

[0025] When the ambient temperature is too low and it is necessary to increase the indoor temperature, hot water with a temperature higher than the ambient temperature is continuously added to the inlet 12. The temperature in the heat exchanger 11 is higher than the ambient temperature. Outdoor air enters the roof fan and exchanges heat with the temperature regulating pipe 14 through the heat exchanger 11, raising the air temperature. Then, it is pushed into the room by the fan wheel 17, which can gradually increase the indoor temperature.

[0026] This utility model's temperature-regulating roof fan can effectively regulate the temperature of the air entering the house by continuously adding cold or hot water to the heat exchanger, thereby further regulating the air temperature inside the house and increasing human comfort. In addition, this utility model is equipped with a filter screen, which can effectively filter out dust in the air and keep the air fresh. The filter screen adopts a plug-in installation, making it easy to clean and replace.

[0027] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A temperature-regulating roof fan, comprising a waterproof cover (1), the waterproof cover (1) having an inverted bowl-shaped structure with a flat top, the top of the waterproof cover (1) being fixedly connected to a column (2) by screws, the lower end of the column (2) being fixedly connected to a base (4); a through hole is provided in the center of the base (4), a waterproof ring (3) is provided on the edge of the base (4), the waterproof ring (3) is fixedly connected to the column (2) outside the column (2), and there is a certain gap between the upper end of the waterproof ring (3) and the top surface of the waterproof cover (1); A mounting base (5) is fixedly connected to the lower edge of the base (4). The mounting base (5) is a hollow metal frame. The lower end of the mounting base (5) has an outward protruding edge. A frame (6) is also provided under the base (4). A partition (15) is fixedly connected to the support edge at the bottom of the frame (6). The partition (15) is a horizontally set hollow plate. A wind guide (16) is fixedly connected to the inner edge of the partition (15). The wind guide (16) is trumpet-shaped. The diameter of the wind guide (16) gradually decreases from the top to the bottom in a streamlined manner. A motor (18) is provided at the lower end of the wind guide (16). A wind wheel (17) is provided around the motor (18). The wind wheel (17) is fixedly connected to the motor (18). An air outlet (19) is provided outside the impeller (17). The air outlet (19) is a circular metal mesh cover. The upper end of the air outlet (19) is fixedly connected to the partition plate (15), and the lower end is fixedly connected to the middle of the motor mounting plate (20). A motor (18) is fixedly mounted on the motor mounting plate (20). The feature is that... A heat exchanger (11) is installed inside the frame (6), and outdoor air enters the room after passing through the heat exchanger (11).

2. The temperature-regulating roof ventilator according to claim 1, characterized in that, The heat exchanger (11) has an inlet (12) and an outlet (13) on its outer side, and a temperature regulating pipe (14) inside. The temperature regulating pipe (14) adopts a continuous U-shaped bend design and is arranged up and down inside the heat exchanger (11).

3. A temperature-regulating roof ventilator according to claim 2, characterized in that, A heat exchanger mounting bracket (10) is fixedly connected to the inner wall of the frame (6). The heat exchanger mounting bracket (10) consists of four L-shaped metal strips. The vertical part of the heat exchanger mounting bracket (10) is fixedly connected to the four sides of the frame (6), and the horizontal part is perpendicular to the inner wall of the frame (6). The heat exchanger (11) is placed on the horizontal part of the heat exchanger mounting bracket (10).

4. A temperature-regulating roof ventilator according to claim 3, characterized in that, A horizontally arranged connector (7) is fixedly connected to the middle of the inner wall of the frame (6). A filter screen mounting groove (8) is fixedly connected to the connector (7). The filter screen mounting groove (8) is a U-shaped frame with an inward opening. A filter screen (9) is placed in the filter screen mounting groove (8). The edge of the filter screen (9) is inside the U-shaped opening of the filter screen mounting groove (8).

5. A temperature-regulating roof ventilator according to claim 4, characterized in that, The mounting base (5) has an outwardly protruding edge at its lower end. The outwardly protruding edge is on an inclined plane and has a positioning hole.