CN111503808A - Roof ventilation and heat dissipation device - Google Patents

Abstract

The present invention discloses a roof ventilation and heat dissipation device, which at least comprises: an outer cover body arranged at the air outlet of the roof, and an air guide unit arranged at the outer cover body, wherein: the outer cover body comprises an air inlet connected to the outer side of the outer cover body with a hollow closed space area, and the air inlet is assembled and sleeved on the heat element to be dissipated or its air outlet pipe; the air guide unit at least comprises a guide channel connected to the hollow closed space area of the outer cover body, an air intake and exhaust port connected to the guide channel and the closed space area of the outer cover body, the air intake and exhaust port is arranged in the space area of the outer cover body, and the air intake and exhaust port cannot be arranged at a position below the central horizontal line of the guide channel.

Description

Roof ventilation and cooling device

technical field

The invention relates to a roof ventilation and heat dissipation device, in particular to a roof ventilation and heat dissipation device which is installed at the top of the roof and has the advantages of preventing rainwater from dripping in and quickly discharging internal hot air.

Background technique

The existing roof natural radiator structure, please refer to FIG. 11 , which mainly includes: a set of hollow ducts 15 arranged at the outlet pipe 10 of the roof 1 and a set of horizontal hollow ventilation arranged at the other end of the duct 15 Pipe 18, wherein: the other end of the duct 15 is in communication with the horizontal hollow ventilation pipe 18, so that the hot air in the house flows into the ventilation pipe 18 through the duct 15 after rising, and then faces the ventilation pipe 18 The outer side flows out to achieve the effect of power-free natural heat dissipation.

Although the above-mentioned technical solution can achieve the originally set purpose and is highly praised by the industry and general operators, there are still the following shortcomings that need to be further improved:

When encountering strong wind and heavy rain or typhoon, the rainwater will be blown by the strong wind and sprayed into one side of the horizontal hollow ventilation pipe 18. In addition, the ventilation pipe 18 is in communication with the duct 15, and The communication position is at the lowest point of the ventilation pipe 18. Therefore, when the airflow passing through the ventilation pipe 18 is strong, the rainwater that has fallen into the side of the ventilation pipe 18 will be affected by the strong airflow. Blow and flow toward the other side of the ventilation pipe 18 until the rainwater flows to the communication position between the ventilation pipe 18 and the duct 15, then the rainwater can flow down along the inner wall edge of the duct 15 until The rainwater drips down from the end of the duct 15; in this way, although it can achieve the purpose of the hot air rising and discharging naturally, it will make the rainwater drip into the house.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION In view of the above-mentioned shortcomings of the prior art, the present invention proposes a roof ventilation and heat dissipation device in view of the above-mentioned deficiencies of the prior art.

The main content of the roof ventilation and heat dissipation device of the present invention is to provide an internal hot air which is assembled at the air outlet of the roof through one end of the outer cover and flows into the guide channel from the space area of the outer cover It acts with the flow velocity difference formed between the outside cool air flowing from the outside of the outer cover into the guide channel, so that the internal hot air already located in the space area is affected by the outside cool air flowing through the guide channel. and drawn in by the rapid flow of the external cold air passing through the surface of the suction and exhaust ports, so that the internal hot air can be quickly inhaled and directed towards the direction of the external cool air already located in the guide channel In addition to the energy saving and environmental protection effect of automatic rapid exhaust heat dissipation without power and maintenance, it can also effectively prevent rainwater from dripping into the room, so as to overcome the existing shortcomings of the existing technology.

Technical solution: In order to achieve the purpose of the above creation, the roof ventilation and heat dissipation device of the present invention at least includes:

A set of outer casings located at the air outlet of the roof;

A set of air guide units arranged at the outer cover, wherein:

The outer cover body includes a space area provided with a hollow closed shape, and an air inlet communicated from the space area to the outer side of the outer cover body, and the air inlet is assembled and sleeved at the part to be radiated or its air outlet pipe;

The air guide unit at least includes a guide channel penetrating through the hollow closed space area of the outer cover body, and a suction and exhaust port arranged between the guide channel and the closed space area of the outer cover body , the suction and exhaust port is arranged in the space area of the outer cover, and the suction and exhaust port cannot be arranged at a position below the center horizontal line of the guide channel.

Further, the air guiding unit further includes a drainage channel which has been protruded outside the outer cover body and communicated with the guiding channel.

Further, the air guide unit includes at least one pipe body.

Further, the air guide unit is composed of at least one open duct body with an arc-shaped section.

Further, the air guide unit is composed of at least one plate body.

Further, the side of the air guide unit protrudes through and is located at the outer side of the outer cover, so that a drainage channel is formed at the air guide unit that has been protruded outside the outer cover, and the drainage channel and the outer cover are formed. The guide channel is in a communication shape for external cooling air circulation.

Further, a protruding guide piece is formed at the guide channel to guide the airflow.

Further, the position of the contact surface between the air guide unit and the outer cover body is airtight, and the side of the air guide unit protrudes through the outer side of the outer cover body, and has been protruded from the outer cover. The diameter of the largest end face of the air guide unit on the outside of the body is larger than the diameter of the contact surface formed at the contact position between the outer cover and the air guide unit (ie, a cone-shaped design).

Further, the suction and exhaust port must be arranged in the space area of the outer cover, and cannot be arranged at a position below the center horizontal line of the guide channel, and the air guide unit that has been protruded outside the outer cover A drainage channel will be formed at the drainage channel, and the drainage channel and the guiding channel will be communicated.

Further, the outer cover is in the shape of an inverted L, and the top edge of the outer cover is provided with an upwardly protruding scallop, so as to control the direction of the guide channel of the air guide unit toward the windward surface.

Further, the outer cover body is T-shaped.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the roof ventilation and heat dissipation device disclosed in the present invention;

Fig. 2 is a perspective view of another angle of Fig. 1;

FIG. 3 is a schematic plan view of FIG. 1 .

Fig. 4 is a cross-sectional view taken along the line AA of Fig. 3 .

FIG. 5 is a top view of FIG. 3 .

FIG. 6 is a cross-sectional view taken along the line BB of FIG. 5 .

7 is a schematic perspective view of a second embodiment of the roof ventilation and heat dissipation device disclosed in the present invention.

FIG. 8 is a schematic cross-sectional view in the axial direction of FIG. 7 .

FIG. 9 is a schematic cross-sectional view of another plane assembly of FIG. 7 .

FIG. 10 is a three-dimensional combined cross-sectional schematic diagram of the third embodiment of the roof ventilation and heat dissipation device disclosed in the present invention in application.

Figure 11 is a combined cross-sectional view of the existing roof natural radiator construction in application.

in:

2- Outer body

20 - Space Zone

21-air inlet

25 - Squid

3-Air guide unit

30-guidance channel

31-Suction and exhaust port

32-Drainage channel

33-Guide piece

35-The first tube body

36-Second segment body

361-Suction and exhaust port

37-guidance channel

5- Roof

50-exhaust port

Detailed ways:

The present invention relates to a roof ventilation and heat dissipation device, please refer to FIG. 1 to FIG. 6 , which at least includes: a set of outer casings 2 disposed at the exhaust port 50 (as shown in FIG. 6 ) of the roof 5 and a set of The air guide unit 3 at the outer cover body 2, wherein:

The outer cover body 2 has a T shape, and the outer cover body 2 includes a space area 20 provided with a hollow closed shape and an air inlet 21 connecting the space area 20 to the outer side of the outer cover body 2. The air inlet 21 is It is assembled and sleeved at the part to be radiated or its outlet pipe or the roof, so that the internal hot air can flow directly into the closed space area 20 through the part to be radiated or the air outlet;

The air guide unit 3 at least includes a guide channel 30 transversely passing through the hollow closed space area 20 of the outer cover 2 , and a suction channel 30 disposed between the guide channel 30 and the closed space area 20 The exhaust port 31, the drainage channel 32 protruding from the outer side of the outer cover 2 and communicating with the guiding channel 30, and the guiding piece 33 protruding from the guiding channel 30 and the drainage channel 32, and the The position of the contact surface between the air guide unit 3 and the outer cover body 2 is airtight, and the side of the air guide unit 3 protrudes through the outer side of the outer cover body 2, and has been protruded from the outer cover. The diameter of the largest end face of the air guide unit 3 outside the body 2 will be larger than the diameter of the contact surface formed at the contact position between the cover body 2 and the air guide unit 3 (ie, a cone-shaped design).

Further, the suction and exhaust port 31 must be arranged in the space area 20 of the outer cover body 2 , and cannot be arranged at a position below the center horizontal line of the guide channel 30 , and has been protruded outside the outer cover body 2 . A drainage channel 32 is formed at the air guiding unit 3 of the present invention, and the drainage channel 32 is communicated with the guiding channel 30 .

Further, protruding guide pieces 33 are formed at the guide channel 30 and the drainage channel 31 to guide the airflow; and the above-mentioned air guide unit 3 is at least one pipe body, Or it is composed of at least one open segment body with arc-shaped section, or at least one plate body.

When the sunlight directly shines on the roof 5, because the exhaust port 50 of the roof 5 is connected to the air inlet 21 of the outer cover 2, the interior of the room and the closed space area 20 of the outer cover 2 are connected to each other, so as to The hot air inside the house can rise upward and flow into the enclosed space area 20 of the outer cover 2 . At this time, the space area 20 of the outer cover 2 is provided by the suction and exhaust ports 31 . It can be directly connected to the guide channel 30 of the air guide unit 3, so that the rising internal hot air can directly flow into the guide channel 30; at this time, the external cold air is flowing through the guide channel 30. 32, because the drainage channel 32 is designed in a tapered shape (that is, the diameter of the outer end surface is larger than the diameter of the contact surface, in other words, the maximum end surface diameter of the air guide unit 3 that has protruded outside the outer cover body 2 will be larger than the outer cover. The diameter of the contact surface formed at the contact position between the body 2 and the air guiding unit 3), so that the flow velocity flowing to the drainage channel 32 will be smaller than the flow velocity flowing to the guiding channel 30 (due to the flow velocity of the guiding channel 30). The cross-sectional diameter is smaller than the cross-sectional diameter of the drainage channel 32), in addition, the guide piece 33 extends from the drainage channel 32 to the guide channel 30 to form a protruding arrangement in the direction of the axial center, so that the flow through the The flow velocity of the guide channel 30 between the two guide pieces 33 will be greater than the flow velocity of the internal hot air flowing into the guide channel 30 . The internal hot air flows toward the other side, and at the same time, the external cold air flowing through the guide channel 30 quickly passes through the surface of the air intake and exhaust port 31, so that the external cold air can be used for the air. The suction and exhaust port 31 generates a suction or traction effect after the flow, so as to accelerate the internal hot air already located in the intake and exhaust port 31 to be sucked out and mixed into the external cold air in the guide channel 30 to mix, and a The air is discharged toward the other side of the air guide unit 3, so that the energy-saving and environmental protection effect of automatic and rapid exhaust heat dissipation without power and maintenance can be achieved. 20 covers the guide channel 30 of the air guide unit 3 to effectively prevent rainwater from dripping into the space area 20 or the room, thereby overcoming the existing deficiencies in the prior art.

Please refer to FIGS. 7 to 9 , which are diagrams of the second embodiment of the present invention. The main changes are: the outer cover body 2 is changed from a T shape to an inverted L shape, and the top edge of the outer cover body 2 is provided with an upward convex The protruding piece 25 is used to change the direction control of the guide channel 30 of the wind guide unit 3 towards the windward surface; as for the above-mentioned structures of the outer cover 2 and the wind guide unit 3, they have been described in detail in the above content description, so it is not repeated here.

Please refer to FIG. 10 , which is a diagram of the third embodiment of the present invention. The main change is that: the air guide unit 3 is changed from a pipe body with the front and rear surfaces communicating through it to an opening of two arc-shaped sections of different sizes. The first segment body 35 and the second segment body 36 are replaced by the first segment body 35 and the second segment body 36, wherein the notch of the first segment body 35 with the larger arc-shaped section is set upward, and the first segment body 35 with the smaller arc-shaped section The notch of the second tube body 36 is set downward, so that the tube body 36 with the smaller arc section can be located above the tube body 35 with the larger arc section, so that the first tube body 35 and the second tube body 35 and the second tube body 35 A guide channel 37 is formed between the sheets 36 .

Further, the side edges of the first tube piece body 35 and the second tube piece body 36 with different arc-shaped sections are staggered, and the second tube piece body 36 with the smaller arc-shaped section is provided with suction. The exhaust port 361 is provided, and the intake and exhaust port 361 and the staggered position between the side edges of the first tube body 35 and the second tube body 36 can be respectively communicated with the guide channel 37 for internal heat. Air flows into the guide channel 37, and at the same time, there is no hole at the lowest position of the surface of the first segment body 35 with a large arc-shaped cross-section, thus ensuring that rainwater will not drip into the space area 20; as for the above-mentioned outer cover The structures of the body 2 and the air guide unit 3 have been described in detail in the above content, so they will not be repeated here.

The technical solutions described above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; therefore, all equivalent changes or modifications made according to the features and spirits described in the scope of the present invention, All should be included in the scope of the patent application of the present invention.

Claims (9)

1. Roof ventilation heat abstractor, its characterized in that includes at least: a set of outer cover body of locating the gas outlet department on roof and a set of wind-guiding unit of locating this outer cover body department, wherein:

the outer cover body comprises a hollow closed space region and an air inlet which is communicated with the space region to the outer side of the outer cover body, and the air inlet is assembled and sleeved at the air outlet pipe;

the air guide unit at least comprises a guide channel transversely penetrating through the hollow closed space area of the outer cover body and an air suction and exhaust port arranged between the guide channel and the closed space area; the air suction and exhaust port is arranged in the space area of the outer cover body, and the air suction and exhaust port cannot be arranged at a position below the central horizontal line of the guide channel.

2. The roof ventilation and heat dissipation device of claim 1, wherein the air guiding unit comprises at least one tube.

3. The roof ventilation and heat dissipation device of claim 1, wherein the air guiding unit is formed of at least one open type duct body having an arc-shaped cross section.

4. The roof ventilation and heat dissipation device as claimed in claim 1, wherein the air guiding unit is formed of at least one plate.

5. The roof ventilation and heat dissipation device as claimed in any one of claims 1 to 4, wherein the lateral penetration of the air guiding unit is protruded outside the outer cover, and a flow guiding channel is formed at the air guiding unit protruded outside the outer cover, and the flow guiding channel is communicated with the guiding channel for external cold air circulation.

6. The roof ventilation and heat dissipation device of claim 5, wherein the guide channel is formed with a protruding guide piece for guiding the airflow.

7. The roof ventilation and heat dissipation device as claimed in claim 6, wherein the contact surface between the wind guiding unit and the outer cover is closed, and the maximum diameter of the end surface of the wind guiding unit protruding outside the outer cover is larger than the diameter of the contact surface formed at the contact position between the outer cover and the wind guiding unit.

8. The roof ventilation and heat dissipation device as claimed in claim 5, wherein the outer cover has an inverted L shape, and is provided at a top edge thereof with a protruding blade for changing a direction control of the guide channel of the air guide unit toward the windward side.

9. The roof ventilation and heat dissipation device of claim 4, wherein the outer cover is T-shaped.

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