TW201437569A - Ventilation fan - Google Patents

Abstract

The present invention provides a ventilation fan, including a box having an opening with a flange, a panel located at the opening, and a wind turbine installed in the box. The panel is composed of a first panel provided with a first inlet port and a first outlet port and a second panel installed below the first panel. After passing through a gap between the first panel and the second panel, air enters the box through the first inlet port. The first panel is recessed toward inside of the box, and an inclined portion is formed between edges of the first panel and the second panel. A second outlet port is arranged on the second panel at a location corresponding to the first outlet port. Air is blown out from the box through an outlet passage formed by the first outlet port and the second outlet port. The present invention has advantages of reducing noise and increasing convenience of use.

Description

Ventilation fan

The present invention relates to a ventilating fan.

1A and 1B show a known ventilating fan, comprising: a box 1 with a flange 8 at the mouth of the box, a panel 4 at the mouth of the box, and a fan 9 and a heating element 5 mounted in the box 1. The panel 4 is held by a gap 7 between the support 3 and the flange 8 which forms an air inlet to the fan 9.

In order to increase the area of the air inlet, the gap between the panel 4 and the flange side 8 is increased by increasing the height of the support member, thereby increasing the air inlet area and increasing the air suction amount.

However, in this case, when the ventilating fan (such as a bathroom heating ventilating fan) is installed on the ceiling or the wall, the thickness of the panel 4 protruding from the ceiling or the wall is increased, so that the bathroom ventilating fan is very heavy, very unattractive, and will give People have a very depressed feeling.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems in the prior art, and provides a thin ventilating fan which ensures the amount of suction.

In order to achieve the above object, the present invention provides a ventilating fan, comprising: a box having a flange at the mouth of the box, a panel at the mouth of the box, and being mounted on the panel a fan in the box, the panel is composed of a first panel provided with a first air inlet and a first air outlet, and a second panel mounted below the first panel, the air passing through the first panel and the second panel After the gap, the first air inlet enters the box body, the first panel is recessed toward the inside of the box body, and the first air inlet port and the edge portion of the first panel form an inclined portion; corresponding to the first air outlet The second panel is provided with a second air outlet, and the air outlet passage formed by the air through the first air outlet and the second air outlet is blown out from the box body.

On the back side of the second panel, there is a protruding rib surrounding the first air inlet, and the gap is formed between the protruding rib and the first panel.

A part of the protruding rib is located at a position opposite to the inclined portion of the first panel, and another portion is located between the opposite first air inlet and the first air outlet, and the protruding rib forms an annular shape.

A rectifying member is provided inside the annular protruding rib on the back surface of the second panel.

The first air inlet is rectangular, and the rectifying member is a plurality of fairings parallel to the long side of the first air inlet, wherein the height of the partial fairing is higher than the height of the protruding rib, and the height of the partial fairing is low. At the height of the protruding ribs, the height of the entire fairing piece is wavy.

The fins are inclined toward the direction of the inclined portion on the long side of the first air inlet.

The rectifying member is a plurality of tapered or a plurality of coaxial annular ribs.

Forming an active portion between the first panel and the second panel And the fixing member, so that the second panel is detachably mounted under the first panel.

The movable component is composed of an opening provided on the first panel and a protruding post provided on the second panel, the protruding post can be engaged in the opening; the fixing component is disposed on the first panel The column and the column disposed on the second panel are formed, and the column of the first panel and the column of the second panel are provided with corresponding screw holes.

The movable component is composed of an opening provided on the first panel and a protruding post provided on the second panel, the protruding post can be engaged in the opening; the fixing component is disposed on the first panel The recessed hole is formed by a protruding claw provided on the second panel, and the protruding claw can be inserted into the recessed hole.

The present invention has an advantage in that noise is reduced and convenience in use is improved.

1‧‧‧ cabinet

3‧‧‧Support

4‧‧‧ panel

5‧‧‧heating components

7‧‧‧ gap

8‧‧‧Flange

9‧‧‧Fan

10‧‧‧Ventilator

11‧‧‧Flange

12‧‧‧ cabinet

13‧‧‧Fan

20‧‧‧ panel

30‧‧‧ first panel

31‧‧‧First air inlet

32‧‧‧First air outlet

33‧‧‧Edge

34‧‧‧Edge

35‧‧‧Edge

36‧‧‧Edge

37‧‧‧ inclined section

38‧‧‧Air outlet

40‧‧‧ second panel

42‧‧‧second air outlet

43‧‧‧Back

44‧‧‧Outstanding ribs

45‧‧‧Rectifying parts

50‧‧‧ gap

60‧‧‧heating components

70‧‧‧Fixed parts

71‧‧‧ recessed hole

72‧‧‧Outstanding claws

73‧‧‧ column

74‧‧‧ column

75‧‧‧ screw holes

80‧‧‧moving parts

81‧‧‧Opening

82‧‧‧Bump

321‧‧‧Outlet passage

451‧‧‧Rectifier

452‧‧‧Rectifier

453‧‧‧Rectifier

454‧‧‧Rectifier

455‧‧‧Rectifier

1A and 1B are schematic views of a known ventilating fan; Fig. 2A is a schematic view of the ventilating fan of the present invention; Fig. 2B is a transverse sectional view of Fig. 2A; and Figs. 3A and 3B are a first panel for controlling the ventilating fan of the present invention. FIG. 4A is a schematic view showing the rear side of the second panel of the ventilating fan of the present invention; FIG. 4B is a transverse sectional view of FIG. 4A; FIG. 5A and FIG. 5B are the ventilating fan of the present invention. Another kind of security between a panel and a second panel Install the schematic.

The present invention illustrates the structure of the present invention by taking a heating ventilating fan as an example, but is not limited to a heating ventilating fan.

2A is a schematic view of the entire ventilating fan of the present invention; FIG. 2B is a transverse cross-sectional view of FIG. 2A; and FIGS. 3A and 3B are schematic views showing the installation of the first panel and the control panel of the ventilating fan of the present invention, but the second panel is not closed.

As shown in FIG. 2A, FIG. 2B, and FIG. 3A, a ventilating fan 10 includes: a box 12 having a flange 11 on the side of the box, a panel 20 at the box mouth, and a fan 13 installed in the box 12, The panel 20 is composed of a first panel 30 provided with a first air inlet 31 and a first air outlet 32, and a second panel 40 mounted below the first panel 30. The air passes through the first panel 30 and the second panel 40. After the gap 50 between the two, the tank 12 is entered through the first air inlet 31.

The first panel 30 is recessed toward the inside of the casing 12, that is, the surface of the first panel 30 is a recessed structure that is recessed upwardly facing the casing 12, and the first air inlet 31 and the edge of the first panel 30 are formed. An inclined portion 37 is formed between 33, 34, 35, and 36. The edge portion refers to an edge portion of the periphery of the first panel 30, that is, a rhombic edge that intersects the inclined portion 37.

A second air outlet 42 is disposed on the second panel 40 at a position corresponding to the first air outlet 32 of the first panel 30. The first air outlet 32 and the second air outlet 42 are extended in a tubular shape. The wall forms an air passage 321 . The air outlet passage 321 formed by the air through the first air outlet 32 and the second air outlet 42 is blown out from the casing 12.

In this embodiment, the heating element is also mounted in the casing 12. 60 is a heating ventilating fan having a circulating air blowing mode for circulating indoor air and a heating mode for heating indoor air. The first air inlet 31 and the first air outlet 32 of the first panel 30 are both rectangular and juxtaposed in the width direction. The second air outlet 42 accommodates the rotatable air outlet 38 disposed on the air outlet 321 . When the heating ventilator does not open the air outlet 38, the outer surface of the air outlet 38 and the outer surface of the second panel 40 are kept flat.

Through the above structure, when the heating ventilation fan is operated, the indoor The air enters the first air inlet 31 of the first panel 30 from the gap 50 between the first panel 30 and the second panel 40, and the surface of the first panel 30 opposite to the second panel 40 is toward the interior of the cabinet 12. The recessed portion is formed to form the inclined portion 37, so that when the air is to enter the first air inlet 31 of the first panel 30, the inclined portion 37 has a guiding function to guide the wind smoothly into the first air inlet 31, thereby It can increase the amount of air intake and reduce noise.

Moreover, because the second panel 40 is mounted to the first panel 30 Below, the first panel 30 is recessed upwardly, so when the second panel 40 is mounted under the first panel 30, the overall thickness of the panel 20 is thinned, and when the panel 20 fixed in one body is mounted to the cabinet 12 When mounted on the ceiling, it is thinner than the thickness of the ceiling, making it more beautiful.

Due to the air outlet route (via the first air outlet 32 and the first The second air outlet 42) and the air inlet path of the air entering the casing 12 (via the gap 50 and the first air inlet 31) are cylindrical walls of the air outlet passage 321 between the first air outlet 32 and the second air outlet 42 They are separated so that the air entering and leaving the casing 12 does not mix.

Next, on the basis of the above embodiment, as shown in the figure 4A and 4B, a protruding rib 44 surrounding the first air inlet 31 is provided on the back surface 43 of the second panel 40, and the gap 50 is formed between the protruding rib 44 and the first panel 30.

A portion of the protruding rib 44 is located with the first panel 30 The opposite position of the inclined portion 37, that is, the front projection of the protruding rib 44 of the portion falls in the inclined portion 37; the other portion is located at a position between the opposite first air inlet 31 and the first air outlet 32, that is, A front projection of a portion of the protruding ribs 44 falls between the first air inlet 31 and the first air outlet 32. Thus, the area of the annular shape surrounded by the protruding ribs 44 is necessarily equal to or larger than the area of the first air inlet 31.

As explained above, due to the first panel 30 The first air outlet 32 and the second air outlet 42 on the second panel 40 are connected by an air outlet passage 321 . Therefore, the "projecting rib 44 around the first air inlet 31" according to the present invention includes two cases, or the protruding air rib 44 independently surrounds the first air inlet 31, or the above-mentioned cylindrical wall by the air passage 321 The first air inlets 31 are collectively separated from the first air outlet 32.

In the present embodiment, since the first air inlet 31 and the first air outlet 32 are both rectangular, the protruding ribs 44 also form an annular shape.

When the heating ventilation fan is running, the motor generates noise due to the high-speed rotation, and the noise is first transmitted to the first panel 30 and the second panel 40 through the first air inlet 31 on the first panel 30, and then transmitted from the gap 50. Go indoors.

Since the protruding rib 44 is protruding from the back surface of the second panel 40 43 Therefore, a semi-enclosed space is formed between the first panel 30 and the second panel 40 (only a space is provided on the surface opposite to the air inlet), and the space hinders and absorbs the noise, so that the noise It is directly difficult to pass into the room from the gap 50 formed between the first panel 30 and the second panel 40, that is, noise can be blocked from propagating into the room.

In addition, the provision of the protruding ribs 44 on the back surface 43 of the second panel 40 also has the effect of increasing the strength of the second panel 40.

Further, as shown in FIGS. 4A and 4B, a rectifying member 45 is provided inside the annular protruding rib 44 on the back surface 43 of the second panel 40. In this embodiment, the first air inlet 31 is rectangular, and the rectifying member 45 is a plurality of fairings 451, 452, 453, 454, 455 parallel to the long side of the first air inlet 31, and a part of the fairing 451 The height of the 453, 455 is higher than the height of the protruding ribs 44, wherein the height of the partial fairings 452, 454 is lower than the height of the protruding ribs 44, and the height of the integral fairings is wavy. Since the commutator segments are alternately changed in height, interference occurs when noise transmitted from the first air inlet port 31 passes through the plurality of segments, so that noise can be reduced.

The fairing pieces 451, 452, 453, 454, and 455 are inclined toward the inclined portion 37 on the long side of the first air inlet 31. The "tilt" means that the tip end of the commutator piece is biased toward the edge portion 33 so as to be closer to the inclined portion 37.

The rectifying member 45 of the present invention may also be in the shape of a plurality of tapers such as a conical shape, a triangular pyramid shape or a quadrangular pyramid shape. It can also be a number of coaxial annular ribs.

In addition, in the following description of the present invention, the second panel is The structure mounted on the first panel 30 is described centrally, so that the protruding ribs 44 are not necessary.

As shown in FIG. 3A and FIG. 3B, in the first panel 30 and The movable member 80 and the fixed member 70 are formed between the second panels 40 such that the second panel 40 is detachably mounted below the first panel 30. The fixing member 70 is composed of a column 73 disposed on the first panel 30 and a column 74 disposed on the second panel 40. The column 73 of the first panel 30 and the column 74 of the second panel 40 are disposed on the column 74. Corresponding screw holes 75; the movable member 80 is composed of an opening 81 provided on the first panel 30 and a protrusion 82 disposed on the second panel 40. The protrusion 82 can be inserted into the opening 81. in.

When the second panel 40 is to be mounted to the first panel 30, Only the protrusion 82 on the second panel 40 is inserted into the opening 81 of the first panel 30, and then the second panel 40 is rotated upward to be rotated to the first panel 30, when the first panel 30 is After the column 73 is engaged with the column 74 on the second panel 40, and screwed into the column 73 of the first panel 30 and the screw hole 75 of the column 74 of the second panel 40, the second panel 40 can be Mounted to the first panel 30.

When it is necessary to clear the panel or air inlet of the heating ventilating fan When cleaning, the screw in the screw hole 75 of the column 73 of the first panel 30 and the column 74 of the second panel 40 is first unscrewed, and the second panel 40 is rotated around the movable member 80, and at this time, The panel or air inlet of the heating ventilator can be cleaned. Since one side of the second panel 40 is still fixed on the first panel 30, that is, one side of the second panel 40 is not completely removed from the first panel 30, between the first panel 30 and the second panel 40. Positional relationship To a certain extent, there is no change. When the cleaning is completed, it is not necessary to align the first panel 30 and the second panel 40 with each other before the cleaning, and then fix it.

5A and 5B show the first panel and the first part of the ventilating fan of the present invention. Another installation diagram between the two panels. As shown, the movable member 80 in this embodiment is the same as the previous embodiment, but the fixed member 70 is different. In this embodiment, the fixing member 70 is formed by a recess 71 provided in the first panel 30 and a protruding claw 72 disposed on the second panel 40. The protruding claw 72 can be engaged in the recess 71. And is fixed in the recess 71.

When it is necessary to clear the panel or air inlet of the heating ventilating fan When cleaning, only the position of the second panel 40 provided with the protruding claws 72 is pressed, and at this time, the protruding claws 72 on the second panel 40 are loosened from the recessed holes 71 in the first panel 30, due to the second panel. The protrusion 40 is engaged with the opening 81 of the first panel 30, so that the second panel 40 is rotated around the movable member 80, and at this time, one side of the second panel 40 remains It is fixed on the first panel 30 and is not completely removed from the first panel 30. Therefore, the positional relationship between the first panel 30 and the second panel 40 does not change to some extent, and after cleaning, only The second panel 40 needs to be rotated up to the first panel 30 and simply pressed against the position of the second panel 40 provided with the protruding claws 72 to mount the second panel 40 to the first panel 30, It is necessary to first align the first panel 30 and the second panel 40 with each other as shown in the prior art, and then fix them.

10‧‧‧Ventilator

12‧‧‧ cabinet

20‧‧‧ panel

30‧‧‧ first panel

31‧‧‧First air inlet

33‧‧‧Edge

34‧‧‧Edge

35‧‧‧Edge

36‧‧‧Edge

37‧‧‧ inclined section

38‧‧‧Air outlet

40‧‧‧ second panel

42‧‧‧second air outlet

50‧‧‧ gap

Claims (10)

The utility model relates to a ventilation fan, which comprises: a box body with a flange edge at the box mouth, a panel at the mouth of the box and a fan installed in the box body, wherein the panel is composed of a first panel provided with a first air inlet and a first air outlet, And a second panel mounted under the first panel, the air passes through the gap between the first panel and the second panel, and then enters the cabinet through the first air inlet, wherein the first panel is directed to the interior of the cabinet a recess, the first air inlet and the edge of the first panel form an inclined portion; at a position corresponding to the first air outlet, the second panel is provided with a second air outlet, and the air passes through the first An air outlet passage formed by the tuyere and the second air outlet is blown out from the casing. The ventilating fan according to claim 1, wherein a protruding rib surrounding the first air inlet is provided on a back surface of the second panel, and the gap is formed between the protruding rib and the first panel. . The ventilating fan according to claim 2, wherein a part of the protruding rib is located at a position opposite to the inclined portion of the first panel, and the other portion is located at the opposite first air inlet and the first air outlet. The position between the protruding ribs forms a ring shape. The ventilating fan according to claim 3, wherein a rectifying member is provided in the annular protruding rib on the back surface of the second panel. The ventilating fan according to claim 4, wherein the first air inlet is rectangular, and the rectifying member is a plurality of fairings parallel to the long side of the first air inlet, wherein the plurality of fairings High height At the height of the protruding ribs, the height of a part of the segments is lower than the height of the protruding ribs, and the height of the entire segment is wavy. The ventilating fan according to claim 5, wherein the fins are inclined toward a direction of the inclined portion on the long side of the first air inlet. The ventilating fan according to claim 4, wherein the rectifying member is a plurality of tapered or a plurality of coaxial annular ribs. The ventilating fan according to claim 1, wherein the movable member and the fixed member are formed between the first panel and the second panel, so that the second panel is detachably mounted to the first panel. Below. The ventilating fan according to claim 8 is characterized in that: the movable member is composed of an opening provided on the first panel and a protruding post provided on the second panel, the protruding post being engageable The fixing member is composed of a column disposed on the first panel and a column disposed on the second panel, and the column of the first panel and the column of the second panel are provided with corresponding screw holes . The ventilating fan according to claim 8 is characterized in that: the movable member is composed of an opening provided on the first panel and a protruding post provided on the second panel, the protruding post being engageable The fixing member is formed by a recess provided in the first panel and a protruding claw provided on the second panel, and the protruding claw can be inserted into the recess.