TW201814222A - Heat radiation fan comprising a guide unit, a diversion device, a fan device and a solar power generation unit to ensure that the solar power generation unit achieves the optimal energy conversion efficiency - Google Patents

Abstract

The present invention discloses a heat radiation fan comprising a guide unit, a diversion device, a fan device and a solar power generation unit; the guide unit comprises a base and an air exhaust structure; the base is provided with an inlet communicating with the inside of a building; the air exhaust structure is combined to the base in a way of changing an arrangement angle relative to the base and is provided with an outlet communicating with the inlet; the diversion device is arranged above the air exhaust structure and is provided with a guide part facing the outlet; the fan device is fixedly arranged in the guide unit; and the solar power generation unit is arranged on the diversion device and is electrically connected with the fan device. With the aforesaid structure, the heat radiation fan can be applied to roofs with different inclination angles to ensure that the solar power generation unit achieves the optimal energy conversion efficiency.

Description

Cooling fan

The present invention relates to a heat dissipation device applied to a building, and particularly to a heat dissipation fan.

The conventional cooling fan includes a body and a fan. The base is arranged on the roof of the building and connects the inside and the outside of the building. A solar power generation unit is arranged on the top of the building to convert energy to drive the unit. The fan in the body rotates, thereby guiding the gas inside the building to be discharged to the outside through the cooling fan, thereby achieving the effect of heat dissipation and air circulation.

However, when the cooling fan is installed on a building with a sloping roof, it will cause the solar power generation unit to also have a sloping appearance, resulting in failure to fully absorb sunlight in some periods and affecting the efficiency of photoelectric conversion. Therefore, some companies have improved the structure of the cooling fan, and adjusted the position of the solar power generation unit through a plurality of poles with different lengths. That is, as shown in FIG. 1, the improved heat dissipation fan 1 includes an exhaust structure 2 coupled to the roof and a deflector 3 disposed on the exhaust structure 2. The solar power generation unit 4 is located on the top of the deflector 3. . When the user installs the cooling fan 1, the angle between the deflector 3 and the exhaust structure 2 can be changed by the length selected by the support rods 5 to maintain the parallel state between the solar power generation unit 4 and the ground, thereby ensuring The sunlight is evenly illuminated to improve the efficiency of photoelectric conversion.

However, if the included angle between the deflector 3 and the exhaust structure 2 is too large, the distance between the deflector 3 and the exhaust structure 2 is likely to be too large, which affects the smoothness of the airflow discharged from the room and causes rainwater to splash in. The cooling fan 1 reduces the service life.

For this reason, if a product improves the aforementioned situation, it can not only provide consumers with purchasing options, but also meet market demand.

In view of this, the object of the present invention is to provide a heat dissipation fan, which can adjust the angle of the arrangement with respect to the installed buildings to help guide the heat inside the building to the outside and improve the heat dissipation efficiency.

In order to achieve the above object, a cooling fan provided by the present invention includes a guiding unit, a flow guiding device, and a fan device. The guide unit includes a base and an exhaust structure. The base is installed on the top of a building and has an entrance communicating with the interior of the building. The exhaust structure can be arranged at a different angle to the base. The method is coupled above the base, and the exhaust structure has an outlet at the top of the exhaust structure and communicates with the inlet; the flow guiding device is disposed above the exhaust structure, and has a guide portion facing the An outlet; the fan device is disposed inside the guide unit, and is used to draw the air inside the building through the inlet and the outlet in order, and guide the air through the guide portion of the air guide device to be discharged to the outside.

The effect of the present invention is that it is combined with the base through the exhaust structure in such a way that the setting angle can be changed relative to the base, so that the hot air inside the building is introduced into the inlet through the fan device and is sequentially discharged at the outlet to improve Thermal efficiency.

In order to explain the present invention more clearly, a preferred embodiment is described in detail below with reference to the drawings. Please refer to FIG. 2 to FIG. 3. The heat dissipation fan 100 according to the first preferred embodiment of the present invention includes a guide unit, a flow guide device 30, a fan device 40, and a solar power generation unit 50.

The guide unit includes a base 10 and an exhaust structure 20. The base 10 includes a base plate 12 and a cylinder 14. The base plate 12 is installed on the top of a building and has an entrance 121 to communicate with the building. The cylinder 14 is disposed along the periphery of the inlet 121 and is coupled to the bottom plate 12, and has a first joint portion and a second joint portion which are oppositely disposed. The first joint portion is a first vertical wall 141, which is vertically connected to the bottom plate 12 and has a height lower than the height of the second joint portion; a second vertical wall 142 and an inclined wall 143 together form the In the second joint portion, the second vertical wall 142 is directly connected to the bottom plate 12, and the inclined wall 143 is connected to the other end of the second vertical wall 142 and is inclined upward and inward.

The exhaust structure 20 is a hollow housing with a narrow upper and a lower width, and has a third joint portion 22 and a fourth joint portion 24 opposite to each other. The exhaust structure 20 can be arranged at a different angle from the base 10. The method is coupled above the base 10, that is, fixed to the first coupling portion of the base 10 through the third coupling portion 22, and second coupling to the base 10 through the fourth coupling portion 24. According to usage requirements, the fourth joint portion 24 can be selectively combined with any position between the top edge and the bottom edge of the second joint portion and then fixed, that is, as shown in FIG. 4 and this The second vertical wall 142 of the second joint is combined, or it is combined with the inclined wall 143 of the second joint as shown in FIG. 5, thereby selectively adjusting the distance between the exhaust structure 20 and the base 10. The effect of the angle. In addition, the exhaust structure 20 is further provided with an outlet 26 located on the top of the exhaust structure 20 and communicating with the inlet of the base 10.

The deflector 30 is coupled to the exhaust structure 20 through a plurality of struts P. In this embodiment, the guide can be adjusted by changing the coupling positions of the struts P and the exhaust structure 20. The distance between the flow device 30 and the exhaust structure 20. The flow guiding device 30 includes a top portion 32, a side plate 34, and a guiding portion 36. The side plate 34 is coupled to the peripheral edge of the top portion 32 and is ring-shaped outside the exhaust structure 20. The lower edge of the side plate 34 is lower than the exit of the exhaust structure 20. The guiding portion 36 is funnel-shaped, formed from the top portion 32 and facing the outlet 26 of the exhaust structure 20. The distance between the surface of the guide portion 36 and the inner surface of the side plate 34 gradually increases toward the direction closer to the base 10, and the surface of the guide portion 36 is a curved surface. The surface may also be a smooth bevel.

The fan device 40 is coupled to the inside of the guide unit and includes a rotating structure 42, a motor 44, and a plurality of blades 46. The rotating structure 42 is disposed at a central portion of the exhaust structure 20 and is coupled to the blades 46 on one side. The motor 44 is fixed on the other side of the rotating structure 42 to drive the rotating structure 42 to drive the blades 46 to rotate the air inside the building through the inlet 121 toward the outlet 26. In this embodiment, the motor 44 is a DC brushless motor, which is more durable and has a longer life.

The solar power generating unit 50 is coupled above the flow guiding device 30 and is electrically connected directly to the motor 44 of the fan device 40. The solar power generating unit 50 has a horizontal receiving surface 52 for receiving light energy and converting it into electrical energy (DC power). ) Is output to the fan device 40 to drive the fan device 40 by directly providing energy. The advantages of the direct connection of the solar power generation unit 50 to the motor 44 can not only reduce the cost of battery installation and subsequent battery maintenance, but also directly use the current generated by the solar power generation unit 50 caused by the intensity of sunlight at different points in time. The difference can directly adjust the rotation speed of the fan device 40, and the setting of the fan rotation speed control device can be reduced.

For example, the temperature of the building is likely to rise rapidly due to the strong sunlight at noon, but the strong solar intensity at noon will also cause the solar power generation unit 50 to generate a higher current for the motor 44 and further The rotation speed of the fan device 40 is increased to have better heat dissipation effect. Conversely, the intensity of sunlight in the morning or afternoon is weaker than that at noon, and the temperature of the building will not rise rapidly, and the weaker intensity of sunlight will cause the solar power unit 50 to have a lower intensity. The current reduces the rotation speed of the fan device 40 to avoid excessive heat dissipation. In this way, through the circuit design of directly connecting the solar power generation unit 50 to the motor 44 as described above, the indoor temperature of the building is adjusted in a timely manner, and the constant temperature effect of the building can be achieved even without the fan speed control device. The above is the structural design of the cooling fan 100 of the present invention. When the user installs the cooling fan 100, the angle between the base 10 and the exhaust structure 20 can be changed (see FIG. 6) until the solar power generating unit 50 The receiving surface 52 is horizontally rearward, and then the position between the base 10 and the exhaust structure 20 is fixed by a fixing member (not shown).

In other words, the cooling fan 100 is not only suitable for buildings with a horizontal top, but also for the roof of a building with a sloped top. The angle can be adjusted according to the sloped state of the top of the building, so that the receiving surface of the solar power generation unit 50 52 is maintained in a state of parallel horizontal direction. No matter it is in the morning, noon or afternoon, it can ensure that the solar energy can be evenly irradiated on the solar power generation unit 50, so that the solar power generation unit 50 can fully absorb the solar light to optimize the photoelectric conversion energy.

In addition, through the above-mentioned structural design, the central axis of the exhaust structure 20, the air guiding device 30, and the fan device 40 can be made perpendicular to the ground, and can provide better air circulation effect. That is, the activated fan device 40 will drive the hot air inside the building into the entrance 121 of the base 10 and pass through the exhaust structure 20 tapered upward, and then be guided by the guide portion 36 to follow the outer wall surface. It is discharged to the outside to improve the heat dissipation efficiency, and then to promote the circulation of gas inside and outside the building to maintain air circulation and effectively improve the sweltering situation where the temperature inside the building is too high.

In other embodiments of the heat dissipating device, the structure of the solar power generating unit may be omitted, and the fan device may be directly connected to the mains or other power generating devices to obtain power, not limited to solar energy. And in this embodiment, a central axis passing through the outlet of the exhaust structure and the horizontal plane are perpendicular to each other, so that the hot air in the building can also extend upward smoothly through the exhaust structure and be discharged to the outside, avoiding the gas The circulation process is disturbed to affect the heat dissipation efficiency.

The above descriptions are only the preferred and feasible embodiments of the present invention, and any equivalent changes made by applying the description of the present invention and the scope of patent application should be included in the patent scope of the present invention.

[this invention]

100‧‧‧cooling fan

10‧‧‧ base

12‧‧‧ floor

121‧‧‧ Entrance

14‧‧‧ tube body

141‧‧‧First vertical wall

142‧‧‧Second vertical wall

143‧‧‧inclined wall

20‧‧‧Exhaust structure

22‧‧‧ the third joint

24‧‧‧ the fourth joint

26‧‧‧Export

30‧‧‧ Diversion device

32‧‧‧Top

34‧‧‧Side

36‧‧‧Guide

40‧‧‧fan unit

42‧‧‧rotating structure

44‧‧‧ Motor

46‧‧‧ Blade

50‧‧‧solar power unit

52‧‧‧Receiving side

P‧‧‧Pole

Figure 1 is a schematic diagram of a conventional cooling fan. FIG. 2 is a perspective view of a cooling fan according to a first preferred embodiment of the present invention. FIG. 3 is an exploded perspective view of the cooling fan of FIG. 2. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. 1, revealing that the exhaust structure is coupled to the base in a manner that the setting angle can be changed relative to the base. FIG. 5 is similar to FIG. 4, and the exhaust structure is combined with the inclined wall of the second joint.

Claims (9)

A cooling fan includes: a guide unit including a base and an exhaust structure, the base is installed on the top of a building, and has an inlet communicating with the interior of the building; The base is connected to the base in a manner of changing the display angle, and the exhaust structure has an outlet, which is located on the top of the exhaust structure and communicates with the inlet; a deflector is disposed above the exhaust structure and has A guide portion faces the outlet; and a fan device is provided inside the guide unit to draw air inside the building so that air passes through the inlet and the outlet and is received by the guide portion of the flow guide device Guided and discharged to the outside. The cooling fan according to claim 1, wherein the base has a first joint portion and a second joint portion oppositely disposed, and the exhaust structure has a third joint portion and a fourth joint portion disposed oppositely, The third coupling portion is coupled to the first coupling portion, and the fourth coupling portion is coupled to any position between the top edge and the bottom edge of the second coupling portion, so that the exhaust structure is changed relative to the base. angle. The cooling fan according to claim 2, wherein a height of the first joint portion is lower than a height of the second joint portion, and the second joint portion is inclined upward toward the first joint portion. The cooling fan according to claim 3, wherein the base includes a bottom plate and a cylinder; the bottom plate is disposed on the top of the building and is provided with the entrance; the cylinder is disposed along the periphery of the entrance and is combined with The bottom plate, the barrel has a first vertical wall vertically connected to the bottom plate, the first vertical wall constitutes the first joint portion, and a second vertical wall and an inclined wall together constitute the second joint portion, wherein the first Two vertical walls are vertically connected to the bottom plate, and the inclined wall is connected to the other end of the second vertical wall and inclined upward and inward. The cooling fan according to claim 1, wherein the diversion device includes a top provided with a solar power generation unit, the surface of the top is horizontal, and the solar power generation unit is used for receiving light energy and converting it into electric energy to output to the fan device. For example, the cooling fan of claim 1 includes a solar power generation unit installed on the diversion device and configured to receive light energy and convert it into electrical energy to output to the fan device, wherein the solar power generation unit has a horizontal receiving Surface, the receiving surface is used to receive light energy and convert it into electrical energy to output to the fan device. The cooling fan of claim 1, wherein a central axis passing through an outlet of the exhaust structure and a horizontal plane are perpendicular to each other. The cooling fan according to claim 1, wherein the flow guiding device includes a top and a side plate that is circumferentially arranged on the top edge; the guide portion is recessed from the top surface, and the surface of the guide portion and the inner surface of the side plate The distance between them increases toward the base. The cooling fan according to claim 8, wherein a lower edge position of the side plate of the flow guiding device is lower than the outlet of the exhaust structure.