CN210165519U - Air interchanger communicating first space with second space - Google Patents
Air interchanger communicating first space with second space Download PDFInfo
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- CN210165519U CN210165519U CN201920822638.1U CN201920822638U CN210165519U CN 210165519 U CN210165519 U CN 210165519U CN 201920822638 U CN201920822638 U CN 201920822638U CN 210165519 U CN210165519 U CN 210165519U
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- 238000009423 ventilation Methods 0.000 claims abstract description 124
- 238000011144 upstream manufacturing Methods 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000007664 blowing Methods 0.000 description 15
- 241000237858 Gastropoda Species 0.000 description 11
- 238000013459 approach Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides a ventilation device in intercommunication first space and second space, include: a frame body forming an outline, an air inlet for the air in the first space to enter the opening in the frame body, a first air outlet for the air in the frame body to be supplied to the opening in the first space, a second air outlet for the air in the frame body to be supplied to the opening in the second space, a circulation air path for guiding the air from the air inlet to the first air outlet, a ventilation air path for guiding the air from the air inlet to the second air outlet, and an air path switching board for switching the circulation air path and the ventilation air path, wherein the air path switching board comprises: the air conditioner includes a main air guide portion having a circulating air guide surface forming a part of an air path wall of the circulating air path, a ventilation air guide surface forming a part of an air path wall of the ventilation air path and positioned on a back surface of the circulating air guide surface, and an auxiliary air guide portion extending in a downstream direction from a downstream end of the main air guide portion and having a curvature different from that of the ventilation air guide surface.
Description
Technical Field
The utility model relates to a ventilation device for communicating a first space with a second space.
Background
As shown in fig. 1, the casing 1 of the ventilator generally includes a ventilation air duct 2 and a circulation air duct, the ventilation air duct 2 blows indoor air to the outside, and the circulation air duct heats indoor air and blows the heated indoor air again to the inside. In the conventional ventilation device, the air path switching plate 3 is provided between the ventilation air path and the circulation air path, and the ventilation air path 2 or the circulation air path is opened or closed by rotating the air path switching plate 3.
When the air path switching plate 3 closes the ventilation air path 1 and opens the circulation air path, the indoor air is blown into the room again. On the contrary, when the air path switching plate 3 closes the circulation air path and opens the ventilation air path 1, the indoor air is blown to the outside through the outdoor air outlet 4.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In the related art ventilation device, when the air path switching plate closes the ventilation air path and opens the circulation air path, the air path switching plate forms a part of the air path wall of the circulation air path, and the air path switching plate guides air into the room. The air path switching plate is formed in an arc shape so as to guide air more smoothly into the room. However, when the curved air path switching plate closes the circulation air path and opens the ventilation air path, air is blown to the lower side of the outdoor outlet by being guided by the downstream end of the curved air path switching plate, and the air may collide with the housing of the ventilation device, thereby causing a turbulent flow.
Therefore, the present invention provides a ventilation device capable of suppressing the turbulent flow and making the wind path smoother.
(II) technical scheme
In order to achieve the above object, the utility model provides a ventilation device in intercommunication first space and second space, include:
a frame body with an outline is formed,
an air inlet formed by an opening for the air in the first space to enter the frame,
a first air outlet formed by an opening for supplying air in the frame body to the first space,
a second air outlet formed by an opening for supplying air in the frame body to the second space,
a circulation air passage for guiding air from the air inlet to the first air outlet,
a ventilation air passage for guiding air from the air inlet to the second air outlet,
and an air path switching plate for switching the circulation air path and the ventilation air path,
the wind path switching board comprises:
a main air guide portion having a circulating air guide surface forming a part of the air path wall of the circulating air path and a ventilation air guide surface forming a part of the air path wall of the ventilation air path and positioned on a back surface of the circulating air guide surface,
and a sub-air guide portion extending in a downstream direction from a downstream end of the main air guide portion and having a curvature different from that of the ventilation air guide surface.
In an embodiment of the present invention, the secondary air guiding portion has a curved surface, and a center of a circle formed by a curvature of a point on the curved surface is located on one side of the circulating air guiding surface.
In an embodiment of the present invention, the point on the curved surface closer to the downstream end of the air path switching plate is the larger the curvature is.
In an embodiment of the present invention, the wind path switching board includes:
a wind guide plate formed by the main wind guide part and the auxiliary wind guide part,
and a rotating shaft part which enables the air deflector to rotate between the first air outlet and the second air outlet,
the upstream end of the secondary air guide portion is located on the upstream side of the ventilation air passage on the outer periphery of the rotating shaft portion.
In the embodiment of the utility model, the ventilation device also comprises a waterproof board,
the waterproof board forms the lower end of the second air outlet and extends towards the upstream side of the second air outlet,
the waterproof board is provided with a bottom surface opposite to the first air outlet,
when the air path switching plate shields the first air outlet, the bottom surface is in contact with the air path switching plate.
In the embodiment of the present invention, the point of the secondary air guiding portion having the largest distance from the first air outlet is the vertex,
when the air path switching plate shields the first air outlet,
and the distance from the vertex to the first air outlet is greater than or equal to the distance from the lower end of the second air outlet to the first air outlet.
In an embodiment of the present invention, the ventilation device further comprises,
an air supply unit arranged in the frame body and used for guiding air from the air inlet to the outside of the frame body,
and a heating unit arranged at the upstream side of the first air outlet and used for heating air.
(III) advantageous effects
The utility model discloses a set up vice wind-guiding portion, and the vice wind-guiding surface of taking a breath of vice wind-guiding portion's camber is different with the wind-guiding surface of taking a breath of main wind-guiding portion, and the air is under the vice guide of taking a breath of vice wind-guiding portion, and the redirecting blows off upwards, blows off to keeping away from first air outlet direction promptly. This prevents the air from flowing around the recess formed between the downstream end of the air path switching plate and the bottom end of the second outlet.
Drawings
Fig. 1 is a sectional view of a related art ventilation device in a ventilation mode.
Fig. 2 is a sectional view of the ventilation device opening the circulation air passage according to the first embodiment of the present invention.
Fig. 3 is a sectional view of the ventilator opening the ventilation air passage according to the first embodiment of the present invention.
Fig. 4 is a view of the air path switching plate of the ventilation device according to the first embodiment of the present invention viewed from a lower oblique direction.
Fig. 5 is an oblique upper view of the air path switching plate of the ventilation device according to the first embodiment of the present invention.
Fig. 6 is a side view of the air path switching plate of the ventilation apparatus according to the first embodiment of the present invention.
Fig. 7 is a partially enlarged view of the ventilation air passage opened by the ventilation device according to the first embodiment of the present invention.
Fig. 8 is a partial enlarged view of the ventilation air passage opened by the ventilation device according to the second embodiment of the present invention.
Fig. 9 is a sectional view of the ventilation device of the present invention.
[ notation ] to show
[ Prior Art ] A method for producing a semiconductor device
1-a frame body; 2-ventilation air passage; 3-air path switching board; and 4, an outdoor air outlet.
[ utility model ] to solve the problems
10-a ventilator;
11-a frame body; 111-a top surface; 112-lateral side; 113-an opening; 114-a second air outlet;
12-a face mask; 121-air inlet; 122-a first outlet;
13-an air supply unit;
14-a heating unit;
15-circulation air path;
16-ventilation air passage;
17-air path switching board;
18-a wind deflector; 181-main air guiding part; 182-auxiliary air guiding part; 1811-circulation wind-guiding surface; 1812-ventilating and air-guiding surface; 1821-auxiliary circulation wind guide surface; 1822-secondary ventilation air guide surface; 1823-vertex; 1831-downstream end; 1832-upper surface;
19-a spindle part; 191-outer periphery;
20-a waterproof board; 201-bottom surface;
l1-distance between vertex and first outlet; l2 — distance between the bottom end of the second outlet and the first outlet.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments and the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses the breather 10 in first space of intercommunication and second space of first embodiment, breather 10 can install in first space or second space. The first space and the second space are two separated spaces, for example, a space divided by a wall. The ventilator 10 can suck air in either one of the two spaces, and supply the air to the space, or supply the air to the other space, wherein the space into which the ventilator 10 sucks air is a first space, and the other space separated from the first space is a second space. In the present embodiment, the ventilator 10 is installed in the first space, but the ventilator 10 may be installed in the second space or a space other than the first space and the second space. In this embodiment, the first space is indoor, and the second space is outdoor.
As shown in fig. 2 and 3, the ventilation device 10 includes: the air conditioner includes a frame 11, a mask 12, an air inlet 121, a first air outlet 122, a second air outlet 114, an air blowing unit 13, a heating unit 14, a circulation air duct 15, a ventilation air duct 16, and an air duct switching plate 17.
The frame 11 forms the outer contour of the ventilator 10 and has a hollow rectangular parallelepiped box shape. The frame body 11 includes: a top surface 111, and four side surfaces 112. When the ventilation device 10 is in the installed state, the top surface 111 is a surface parallel to the floor of the first space, and the side surface 112 is a surface perpendicular to the floor of the first space. The side of the frame 11 opposite to the top surface 111 has an opening 113, and air in the first space can enter or blow out of the frame 11 through the opening 113.
The mask 12 is flat and fixed to the opening 113 of the frame 11 so as to cover the opening 113 of the frame 11. The specific manner of fixing the face mask 12 to the opening 113 is not limited in this embodiment, and for example, the face mask 12 may be fixed to the opening 113 of the frame 11 by a fixing member such as a snap or a screw.
The air inlet 121 is an opening on the face mask 12, and is disposed at a position on the face mask 12 opposite to the opening 113 of the frame 11. When the ventilation device 10 is in the mounted state, the air inlet 121 faces the first space and communicates the first space with the inside of the frame 11 through the opening 113 of the frame 11. The air in the first space can enter the frame 11 through the air inlet 121 and the opening 113 of the frame 11.
The first outlet opening 122 is also an opening in the face mask 12 and is located in the face mask 12. When the ventilation device 10 is in the installation state, the first air outlet 122 faces the first space and communicates the first space with the inside of the frame 11. The air in the housing 11 is blown into the first space through the first outlet 122.
The second air outlet 114 is an opening of the frame 11. The second outlet port 114 may be provided on any one of the top surface 111 and the four side surfaces 112 of the frame 11. The second outlet 114 is usually disposed on the side 112 facing the outlet of the blower unit 13, so that the air path is smoother. The second outlet port 114 communicates the second space with the inside of the housing 11, and air in the housing 11 is blown into the second space through the second outlet port 114.
The air supply unit 13 is disposed in the frame 11 and located on the downstream side of the air inlet 121 and the upstream sides of the first air outlet 122 and the second air outlet 114, i.e., located between the air inlet 121 and the first air outlet 122 and the second air outlet 114. The air supply unit 13 draws air in the first space from the air inlet 121 into the frame 11, and supplies the air in the frame 11 to the first air outlet 122 and/or the second air outlet 114. The air blowing unit 13 includes: a fan blade, a snail shell housing the fan blade, and a motor driving the fan blade. The snail shell is provided with a snail shell air inlet and a snail shell air outlet. The air inlet of the snail shell is used for allowing the air in the first space to enter the snail shell, and the air outlet of the snail shell is used as the air outlet of the air supply unit 13 for supplying the air in the snail shell to the outside of the snail shell. In this embodiment, the snail shell inlet is disposed facing the inlet 121 on the face mask 12, and the snail shell outlet is disposed facing the second outlet 114.
The heating unit 14 is disposed in the frame 11 and located on the downstream side of the blowing unit 13 and the upstream side of the first outlet 122, that is, located between the blowing unit 13 and the first outlet 122. In this embodiment, the heating unit is further disposed at a side close to the first air outlet 122. The heating unit 14 is used for heating the air blown by the air blowing unit 13 to the first air outlet 122 to raise the temperature of the air sent into the first space from the first air outlet 122. The present embodiment does not limit the type of the heating unit 14, and may be a heating device such as a resistance wire.
As shown in fig. 2, the circulation duct 15 is provided in the housing 11, and the air inlet 121, the air blowing unit 13, the heating unit 14, and the first air outlet 122 are sequentially positioned in the circulation duct 15. The circulation duct 15 may guide air in the first space from the inlet 121 to the first outlet 122. The air in the first space is guided by the circulation duct 15, passes through the air inlet 121, the air blowing unit 13, and the heating unit 14 in this order, and is finally blown into the first space through the first air outlet 122.
As shown in fig. 3, the ventilation air duct 16 is provided in the housing 11, and the air inlet 121, the air blowing unit 13, and the second air outlet 114 are sequentially located in the ventilation air duct 16. The ventilation air duct 16 may guide air in the first space from the air inlet 121 to the second air outlet 114. The air in the first space is guided by the ventilation air duct 16, passes through the air inlet 121 and the air blowing unit 13 in this order, and is blown to the second space through the second air outlet 114.
As shown in fig. 2 and 3, the air passage switching plate 17 is provided in the housing 11 and switches between the circulation air passage 15 and the ventilation air passage 16. The switching means that the air path switching plate 17 opens or closes the circulation air path 15 or the ventilation air path 16, that is, the circulation air path 15 is switched from the open state to the closed state, and the ventilation air path 16 is switched from the closed state to the open state; alternatively, the circulation duct 15 is switched from the closed state to the open state, and the ventilation duct 16 is switched from the open state to the closed state. The switching means that the circulation air duct 15 and the ventilation air duct 16 are simultaneously opened.
The terms "upstream" and "downstream" in the present embodiment will be described below. When the air supply unit 13 is operated, an air flow from the air inlet 121 to the first air outlet 122 or the second air outlet 114 is formed in the frame 11. "upstream direction" means the direction opposite to the direction of the gas flow; "downstream direction" refers to the direction of airflow. "upstream side" means a side located in the upstream direction; "downstream side" means the side located in the downstream direction. "upstream end" means an end located in the upstream direction; "downstream end" refers to the end that is located in the downstream direction.
The air path switching plate 17 is provided upstream of the first outlet 122 and the second outlet 114, and has a plate shape, and as shown in fig. 4, 5, and 6, the air path switching plate 17 includes: air deflector 18, rotating shaft 19 and drive part.
The air guiding plate 18 is plate-shaped and includes a main air guiding portion 181 and an auxiliary air guiding portion 182. The air deflector 18 can shield the first outlet 122 or the second outlet 114.
The rotating shaft 19 is located between the first outlet 122 and the second outlet 114, and is close to the second outlet 114. The rotating shaft portion 19 has a rotating shaft connected to the driving portion. The air deflector 18 can rotate around the rotation axis between the first outlet 122 and the second outlet 114.
The driving portion is connected to the rotating shaft of the rotating shaft portion 19, and is used for driving the rotating shaft portion 19 to rotate, so as to drive the air deflector 18 to rotate around the rotating shaft between the first air outlet 122 and the second air outlet 114. Under the driving of the rotating shaft 19, the air deflector 18 rotates between the first outlet 122 and the second outlet 114, so that the air deflector 18 can shield the first outlet 122 or the second outlet 114, or the air deflector 18 stays at a position where the first outlet 122 and the second outlet 114 are not completely shielded at the same time, that is, the first outlet 122 and the second outlet 114 are opened at the same time. In this embodiment, the driving part may be a motor.
The ventilation device 10 further includes: and a control unit provided in the housing 11 and connected to the air blowing unit 13, the heating unit 14, and the air path switching plate 17. The air blowing unit 13, the heating unit 14, and the air path switching plate 17 may be referred to as an operation portion of the ventilation device 10.
The control unit sends a command to the operation unit of the ventilator 10 to control the operation of the ventilator 10. For example, the controller controls the driving unit of the air path switching plate 17 to control the air deflector to rotate around the rotation axis between the first outlet 122 and the second outlet 114. The control part controls the operation of the air supply unit 13 to form an air flow from the air inlet 121 to the first air outlet 122 or the second air outlet 114. The control unit controls the heating unit 14 to operate to heat the air sent into the first space through the first air outlet 122.
As shown in fig. 4, 5 and 6, the main air guide 181 includes: a circulating air guide surface 1811 and a ventilation air guide surface 1812. In the view of fig. 6, the ventilation air guide surface 1812 and the circulation air guide surface 1811 are the upper surface and the lower surface of the main air guide part 181, respectively. The upper and lower surfaces in fig. 6 may also be referred to as front and back, respectively.
Under the driving of the driving portion, the air deflector 18 rotates around the rotation axis between the first outlet 122 and the second outlet 114. When the air deflector 18 shields the second outlet 114, the first outlet 122 is opened, the ventilation air duct 16 is closed, and the circulation air duct 15 is opened. The circulating air guide surface 1811 of the main air guide portion 181 forms a part of the air passage wall of the circulating air passage 15. When the air deflector 18 shields the first outlet 122, the second outlet 114 is opened, the circulation duct 15 is closed, and the ventilation duct 16 is opened. The ventilation air guide surface 1812 of the main air guide portion 181 forms a part of the air passage wall of the ventilation air passage 16.
In this embodiment, the main air guiding portion 181 is an arc-shaped plate. The circulating air guide surface 1811 and the ventilation air guide surface 1812 both have a certain curvature. The curvature of the circulating air guide surface 1811 and the curvature of the ventilation air guide surface 1812 are the same or substantially the same. The curved circulation air guide surface 1811 and the ventilation air guide surface 1812 can make the circulation air passage 15 and the ventilation air passage 16 smoother, respectively.
The auxiliary air guiding portion 182 extends from the downstream end of the main air guiding portion 181 toward the downstream direction, that is, the auxiliary air guiding portion 182 extends from the downstream end of the main air guiding portion 181 toward the second air outlet 114 side and is connected to the rotating shaft portion 19. Similar to the main air guiding portion 181, the auxiliary air guiding portion 182 is also an arc-shaped plate, and includes: a secondary circulation air guide surface 1821 and a secondary ventilation air guide surface 1822. In the view of fig. 6, the secondary ventilation air guide surface 1822 and the secondary circulation air guide surface 1821 are the upper surface and the lower surface of the secondary air guide portion 182, respectively. The upper and lower surfaces in fig. 6 may also be referred to as the back and front surfaces, respectively. When the air deflector 18 shields the second outlet 114, the first outlet 122 is opened, the ventilation air duct 16 is closed, and the circulation air duct 15 is opened. The secondary circulation air guide surface 1821 of the secondary air guide portion 182 also forms a part of the duct wall of the circulation duct 15. When the air deflector 18 shields the first outlet 122, the second outlet 114 is opened, the circulation duct 15 is closed, and the ventilation duct 16 is opened. The secondary ventilation air guide surface 1822 of the secondary air guide portion 182 also forms a part of the duct wall of the ventilation air duct 16.
In this embodiment, the secondary ventilation air guide surface 1822 of the secondary air guide portion 182 has a curvature different from the ventilation air guide surface 1812 of the main air guide portion 181, that is, the curvature of the secondary ventilation air guide surface 1822 of the secondary air guide portion 182 is different from the ventilation air guide surface 1812 of the main air guide portion 181. Specifically, the center of a circle formed by the curvature of any point of the secondary air-exchange air-guiding surface 1822 of the secondary air-guiding portion is located on the side of the secondary circulation air-guiding surface 1821 bounded by the air-guiding plate 18. When the air deflector 18 shields the first outlet 122, the second outlet 114 is opened, the circulation duct 15 is closed, and the ventilation duct 16 is opened, the curved surface of the secondary air guide portion 182 has an arc shape that is curved toward the opposite side of the first outlet 122.
Further, in this embodiment, the downstream end of the air path switching plate is the end closest to the second air outlet 114. The curvature of the secondary ventilation air guide surface 1822 increases as the air path switching plate 17 approaches the downstream end 1831, that is, the secondary ventilation air guide surface 1822 becomes gentler as the air path switching plate 17 approaches the upstream end, and conversely, the secondary ventilation air guide surface 1822 becomes steeper. That is, for two points of the secondary ventilation air-guiding surface 1822 of the secondary air-guiding portion 182: a first point and a second point. If the first point is located in an upstream direction of the second point and the second point is located in a downstream direction of the first point, the curvature of the second point is greater than the curvature of the first point. That is, the curvature of the secondary air guide portion secondary ventilation air guide surface 1822 gradually increases in the downstream direction, whereas the curvature of the secondary air guide portion secondary ventilation air guide surface 1822 gradually decreases in the upstream direction.
As shown in fig. 7, the secondary air guiding portion 182 has an apex 1823. The apex 1823 is a point on the sub-air guide 182 that is the point where the first outlet 122 is maximally spaced from the air guide plate 18 when the ventilation air duct 16 is opened, the circulation air duct 15 is closed, and the air guide plate 18 shields the first outlet 122 in the mounted state of the ventilation apparatus 10, and the second outlet 114 is opened. In the present embodiment, the distance between the vertex 1823 and the first outlet 122 is L1. The distance between the bottom end of the second outlet 114 and the first outlet 122 is L2. The bottom end of the second outlet 114 refers to an end of the second outlet 114 closest to the first outlet 122. In the present embodiment, the distance L1 is greater than or equal to the distance L2.
In the present embodiment, the upstream end of the sub-air guide portion 182 is located upstream of the outer periphery 191 of the rotating shaft portion 19 in the ventilation air duct 16, that is, the upstream end of the sub-air guide portion 182 is located upstream of the outer periphery 191 of the rotating shaft portion 19.
The above is a description of the structure of the ventilator 10, and the operation of the ventilator 10 will be described next.
When the ventilation device 10 is operated, air in the first space is sucked into the housing 11 from the air inlet 121 of the ventilation device 10 by the suction of the air blowing unit 13.
The controller sends a first command to the driver of the air path switching plate 17, and the air path switching plate 17 is moved to the first position by the driving of the driver. As shown in fig. 9, in the first position, the air path switching plate 17 shields the second outlet 114, the first outlet 122 is opened, the circulation air path 15 is opened, and the ventilation air path 16 is closed. The air entering the housing 11 is guided by the air path switching plate 17, and blown toward the first outlet 122 along the circulating air guide surface 1811 and the sub-circulating air guide surface 1821. Since the circulating air guide surface 1811 and the secondary circulating air guide surface 1821 are curved surfaces having a constant curvature, air can be smoothly blown toward the first outlet 122 by the guiding of the circulating air guide surface when the air is blown out from the air blowing unit 13 at a high speed.
The controller sends a second command to the driver of the air passage switching plate 17, and the air passage switching plate 17 is moved to the second position by the driving of the driver. In the second position, the air path switching plate 17 shields the first outlet 122, the second outlet 114 is opened, the circulation air path 15 is closed, and the ventilation air path 16 is opened. The air introduced into the housing 11 is blown toward the second outlet port 114 along the main ventilation air guide surface 1812 and the sub ventilation air guide surface 1822 by the air path switching plate 17. If the curvature of the duct switching plate 17 is increased to increase the curvature of the ventilation air guide surface in order to make the circulation duct 15 smooth, the air blown out at high speed from the air blowing unit 13 is guided by the ventilation air guide surface having a large curvature and blown out to a position lower than the bottom end of the second outlet port 114, where the lower position is a direction closer to the first outlet port 122. Since the curvature of the secondary ventilation air-guiding surface 1822 of the secondary air-guiding portion 182 is different from that of the primary ventilation air-guiding surface 1812 of the primary air-guiding portion 181, the center of a circle of curvature at any point of the secondary ventilation air-guiding surface 1822 of the secondary air-guiding portion is located on one side of the secondary circulation air-guiding surface 1821 bounded by the air-guiding plate 18. Therefore, the air is guided by the secondary ventilation air guide surface 1822 of the secondary air guide part to blow upwards in a changed direction, i.e., blow away from the first air outlet 122. Accordingly, in the present embodiment, the air is prevented from being disturbed in the concave portion formed between the downstream end 1831 of the air passage switching plate 17 and the bottom end of the second outlet port 114.
Further, the closer to the downstream end 1831 of the air path switching plate 17, the greater the curvature of the curved surface of the secondary air guide portion 182. That is, the curvature of the secondary ventilation air guide surface 1822 increases as the downstream end 1831 of the air passage switching plate 17 approaches. Accordingly, when the air comes into contact with the secondary ventilation air guide surface 1822, the air is smoothly guided to the second outlet port 114 because the secondary ventilation air guide surface 1822 has a gradually steep curved surface. This prevents air blown from the main air guide portion 181 to the second outlet port 114 from hitting the sub air guide portion 182, and thus prevents a turbulent flow from occurring at the intersection between the sub air guide surface 1822 and the air guide surface 1812.
Furthermore, when the air path switching plate 17 shields the first outlet 122 and the ventilation air path 16 is opened, the distance L1 from the vertex 1823 of the secondary air guide portion 182 to the first outlet 122 is greater than or equal to the distance L2 from the bottom end of the second outlet 114 to the first outlet 122, so even if a concave portion exists between the downstream end 1831 of the air path switching plate 17 and the bottom end of the second outlet 114, the air is guided by the secondary air guide portion 182 to flow upward from the vertex 1823 of the secondary air guide portion 182, and does not flow downward into the concave portion. The upward and downward directions refer to directions close to the first outlet opening 122 and away from the first outlet opening 122, respectively. This can suppress the formation of air turbulence between the downstream end 1831 of the air passage switching plate 17 and the bottom end of the second outlet port 114, and can suppress noise and pressure loss caused by this.
The ventilation device 10 of the second embodiment for connecting the first space and the second space has the same or similar features as the first embodiment not repeated for the sake of brief description, and only the features different from the first embodiment will be described below with emphasis.
As shown in fig. 8, the ventilation device 10 of the present embodiment further includes: a flashing 20. The waterproof sheet 20 is a plate-like member extending from the second outlet 114 to the upstream side of the second outlet 114, forms the bottom end of the second outlet 114, and has a bottom surface facing the first outlet 122. The upstream end of the waterproof board 20 is located on the downstream side of the outer periphery 191 of the rotating shaft portion 19, that is, the extension length of the waterproof board 20 is smaller than the distance between the outer periphery 191 of the rotating shaft portion 19 and the second air outlet 114, and the extension length refers to the distance of the waterproof board 20 in the direction perpendicular to the second air outlet 114. The shape of the bottom surface 201 of the waterproof plate 20 matches the shape of the upper surface 1832 of the downstream end 183 of the air path switching plate 17. The upper surface 1832 is the surface facing away from the first outlet opening 122 in the perspective of fig. 8. When the air path switching plate 17 shields the first outlet 122, the bottom surface 201 of the waterproof plate 20 contacts the air path switching plate 17, that is, the bottom surface 201 of the waterproof plate 20 contacts the upper surface 1832 of the downstream end 183 of the air path switching plate 17. As shown in fig. 8, the bottom surface 201 of the waterproof board 20 and the upper surface 1832 of the downstream end 183 of the air path switching board 17 may be inclined planes, and the inclined planes and the first air outlet 122 have a nonzero included angle. When the bottom surface 201 of the waterproof plate 20 contacts the upper surface 1832 of the downstream end 183 of the air path switching plate 17, the two are tightly engaged with each other due to the shape matching.
The above is a description of the structure of the ventilator 10, and the operation of the ventilator 10 will be described next.
When the ventilation device 10 is operated, air in the first space is sucked into the housing 11 from the air inlet 121 of the ventilation device 10 by the suction of the air blowing unit 13.
The controller sends a second command to the driver of the air passage switching plate 17, and the air passage switching plate 17 is moved to the second position by the driving of the driver. In the second position, the air path switching plate 17 shields the first air outlet 122, the second air outlet 114 is opened, the circulation air path 15 is closed, the ventilation air path 16 is opened, and the bottom surface 201 of the waterproof plate 20 is in contact with and tightly engaged with the upper surface 1832 of the downstream end 183 of the air path switching plate 17. The air introduced into the housing 11 is blown toward the second outlet port 114 along the ventilation air guide surface 1812 and the sub-ventilation air guide surface 1822 by the air path switching plate 17. In the ventilation apparatus 10 of the present embodiment, the waterproof plate 20 is further provided at the second air outlet 114, the waterproof plate 20 extends toward the upstream side of the second air outlet 114, and when the ventilation air duct 16 is opened, the bottom surface 201 of the waterproof plate 20 is in contact with the upper surface 1832 of the downstream end 183 of the air duct switching plate 17 and is tightly engaged with the upper surface, so that liquid such as water droplets entering the frame from the second air outlet 114 is blocked by the waterproof plate 20 and cannot flow into the frame 11 below the waterproof plate 20, thereby preventing liquid such as water droplets from flowing into the frame 11 from the second air outlet 114, preventing erosion of components in the frame 11 by water, and improving the operation reliability of the ventilation apparatus 10.
Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should have a clear understanding of the present invention.
It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. In addition, the above definitions of the various elements are not limited to the specific structures, shapes or modes mentioned in the embodiments, and those skilled in the art may easily modify or replace them, for example:
(1) directional phrases used in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., refer only to the orientation of the drawings and are not intended to limit the scope of the present invention;
(2) the embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e. technical features in different embodiments may be freely combined to form further embodiments.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A ventilation device that communicates a first space with a second space, comprising:
a frame body with an outline is formed,
an air inlet formed by an opening for the air in the first space to enter the frame,
a first air outlet formed by an opening for supplying air in the frame body to the first space,
a second air outlet formed by an opening for supplying air in the frame body to the second space,
a circulation air passage for guiding air from the air inlet to the first air outlet,
a ventilation air passage for guiding air from the air inlet to the second air outlet,
and an air path switching plate for switching the circulation air path and the ventilation air path,
its characterized in that, wind path switches board includes:
a main air guide portion having a circulating air guide surface forming a part of the air path wall of the circulating air path and a ventilation air guide surface forming a part of the air path wall of the ventilation air path and positioned on a back surface of the circulating air guide surface,
and a sub-air guide portion extending in a downstream direction from a downstream end of the main air guide portion and having a curvature different from that of the ventilation air guide surface.
2. The air gasper of claim 1, wherein:
the auxiliary air guide part is provided with a curved surface, and the circle center of a circle formed by the curvature of a point on the curved surface is positioned on one side of the circulating air guide surface.
3. The air gasper of claim 2, wherein:
the curvature is larger at a point on the curved surface closer to the downstream end of the air path switching plate.
4. The air gasper of claim 2, wherein:
the wind path switching board comprises:
a wind guide plate formed by the main wind guide part and the auxiliary wind guide part,
and a rotating shaft part which enables the air deflector to rotate between the first air outlet and the second air outlet,
the upstream end of the secondary air guide portion is located on the upstream side of the ventilation air passage on the outer periphery of the rotating shaft portion.
5. The air gasper of claim 1, wherein:
the ventilation device also comprises a waterproof board,
the waterproof board forms the lower end of the second air outlet and extends towards the upstream side of the second air outlet,
the waterproof board is provided with a bottom surface opposite to the first air outlet,
when the air path switching plate shields the first air outlet, the bottom surface is in contact with the air path switching plate.
6. The air interchanger of claim 1 or 5, wherein:
when the air path switching plate shields the first air outlet,
the point with the maximum distance between the auxiliary air guiding part and the first air outlet is a vertex,
and the distance from the vertex to the first air outlet is greater than or equal to the distance from the lower end of the second air outlet to the first air outlet.
7. The air gasper of claim 1, wherein:
the air-changing device also comprises a ventilation device,
an air supply unit arranged in the frame body and used for guiding air from the air inlet to the outside of the frame body,
and a heating unit arranged at the upstream side of the first air outlet and used for heating air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920822638.1U CN210165519U (en) | 2019-05-31 | 2019-05-31 | Air interchanger communicating first space with second space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920822638.1U CN210165519U (en) | 2019-05-31 | 2019-05-31 | Air interchanger communicating first space with second space |
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| CN210165519U true CN210165519U (en) | 2020-03-20 |
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| CN201920822638.1U Active CN210165519U (en) | 2019-05-31 | 2019-05-31 | Air interchanger communicating first space with second space |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021196891A1 (en) * | 2020-03-31 | 2021-10-07 | 广东松下环境系统有限公司 | Heating ventilation device |
| CN114576773A (en) * | 2020-11-30 | 2022-06-03 | 广东松下环境系统有限公司 | Heat exchange device |
-
2019
- 2019-05-31 CN CN201920822638.1U patent/CN210165519U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021196891A1 (en) * | 2020-03-31 | 2021-10-07 | 广东松下环境系统有限公司 | Heating ventilation device |
| CN114576773A (en) * | 2020-11-30 | 2022-06-03 | 广东松下环境系统有限公司 | Heat exchange device |
| CN114576773B (en) * | 2020-11-30 | 2024-08-23 | 广东松下环境系统有限公司 | Heat exchange device |
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