Partitioned air supply device

Abstract

The utility model discloses a partition air supply device which comprises a shell, an external flow guide device and cross-flow blades, an air inlet is formed in the shell, air outlets are formed in the two sides of the shell, the cross-flow blades are arranged in the shell, and vortex tongues, internal flow guide structures and outlet air channels are arranged between the cross-flow blades in the shell and the air outlets. The internal flow guide structure restrains the outlet air duct to face air outlets in the two sides, the external flow guide device comprises a rotating shaft and a flow guide plate, and the flow guide plate is connected with the shell through the rotating shaft and can rotate to a plurality of angles along with the rotating shaft so as to change the air outlet direction. The flow guide plate protrudes out of the plane of the air outlet of the shell at multiple rotation angles. According to the partitioned air supply device, partitioned air supply in the left-right direction can be achieved, air exchange inside and outside an included angle area in the air supply direction can be slowed down through an air wall formed by air supply airflow, the influence of vitiated air diffusion is reduced, the air supply direction can be adjusted more conveniently through the protruding flow guide plate design, and occupation of the inner space of the shell is reduced; and the portability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically to a zoned air supply device. Background Technology

[0002] In crowded places, stuffiness, poor air quality, and various odors are common, and people who work and live in such environments for extended periods often experience physical discomfort. In hot and poorly ventilated places, people typically use traditional fans to cool down and accelerate indoor air circulation. However, this method has the following drawbacks: 1. Traditional fans have a single airflow direction. To achieve the best cooling effect, fans are often used to blow directly onto the user. Prolonged direct exposure to a fan can not only affect health, but in polluted environments, the fan can also accelerate the blowing of polluted air towards the user; 2. Traditional fans accelerate local airflow, potentially causing air from polluted areas to mix more rapidly with air from the user's vicinity, failing to effectively isolate pollutants; 3. The airflow deflector of traditional fans is complex and relatively bulky, and the range of airflow direction adjustment is limited; 4. Traditional fans produce uneven airflow and are noisy during operation. Summary of the Invention

[0003] To achieve the function of zoned air supply on both the left and right sides, avoid direct airflow onto the human body, and slow down the spread of polluted air, this utility model discloses a zoned air supply device.

[0004] The technical solution to achieve the purpose of the utility model is as follows: A zoned air supply device includes a housing, an external flow guiding device, and cross-flow blades, characterized in that: the housing includes an air inlet, an air outlet, a vortex, an internal flow guiding structure, and an outlet air duct; the cross-flow blades are disposed inside the housing; the air inlet is disposed on the housing; the air outlet is disposed on both sides of the housing; the vortex, the internal flow guiding structure, and the outlet air duct are disposed between the cross-flow blades and the air outlet; the internal flow guiding structure constrains the outlet air duct to face the air outlets on both sides; the external flow guiding device includes a rotating shaft and a guide plate; the rotating shaft is connected to the housing; the guide plate can rotate with the rotating shaft to several angles to change the air outlet direction; the guide plate protrudes from the air outlet plane of the housing at multiple rotation angles.

[0005] Optionally, the minimum distance between the vortex tongue and the cross-flow blade is ≤5mm.

[0006] Optionally, the external flow guiding device forms an acute angle with the air outlet, and the flow guiding plate of the external flow guiding device forms a positive angle of attack with the airflow blown out of the air outlet.

[0007] Optionally, the housing further includes a heating module disposed between the cross-flow blades and the air outlet.

[0008] Optionally, the heating module further includes fins disposed in the outlet air duct.

[0009] Optionally, a motor and a control circuit are provided inside the housing. The motor is connected to the cross-flow blades, and the control circuit is connected to the motor and the heating module.

[0010] Optionally, a filter screen is provided at the air inlet of the housing, and the filter screen is removable.

[0011] Optionally, a negative ion generator is also provided inside the housing. The negative ion generator is located between the cross-flow blades and the air outlet and is connected to the control circuit.

[0012] Optionally, the housing also includes a display screen disposed on the front of the housing and connected to the control circuit.

[0013] The partitioned air supply device provided by this utility model solves the problem in related technologies where unidirectional air supply accelerates the mixing of polluted air and blows it directly onto the human body. The beneficial functions of this utility model also include: First, when the heating module is working, warm air is blown out of the air outlet, and the device can be used as a heating device; Second, the airflow through the external guide device can not only act as an "air wall" to reduce air convection on both sides of the airflow, but also provide basic air supply and cooling functions for users on both sides of the device when the partitioned air supply direction angle is large; Third, the device has a built-in filter and a negative ion generator. The filter can filter out harmful particles, making the air outlet cleaner, and the negative ion generator can make the airflow blown out of the air outlet carry negative ions, which can react with pollutants in the air and settle, thus purifying the air, removing odors, and sterilizing and disinfecting. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the partitioned air supply device disclosed in an embodiment of this utility model.

[0016] Figure 2 This is a schematic diagram of the exploded view of the shell and interior of the present utility model.

[0017] Figure 3 These are frontal views and cross-sectional views along the AA direction of the partitioned air supply device disclosed in this utility model embodiment when it supplies air to the left and right partitions.

[0018] Figure 4 These are frontal and cross-sectional views along the BB direction of the zoned air supply device disclosed in this embodiment of the present invention during forward air supply.

[0019] Figure 5 This is a schematic diagram of the external flow guiding device disclosed in an embodiment of the present utility model.

[0020] Reference numerals: 1. Housing; 2. External airflow guide device; 3. Cross-flow blade; 101. Air inlet; 102. Air outlet; 103. Display screen; 104. Vortex; 105. Internal airflow guide structure; 106. Outlet air duct; 107. Heating module; 108. Fin; 201. Rotating shaft; 202. Airflow guide plate; 301. Motor; 302. Control circuit; 303. Filter screen; 304. Negative ion generator. Detailed Implementation

[0021] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0022] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features of the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," "right," and "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," "added," and "constrained," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] See Figure 1 and Figure 2 As shown, this utility model embodiment provides a zoned air supply device, including a housing 1, an external flow guiding device 2, and cross-flow blades 3. An air inlet 101 is disposed on the housing 1, and air outlets 102 are disposed on both sides of the housing 1. The positions of the two sides on the housing 1 include, but are not limited to, opposing planes; they can also be adjacent planes, curved surfaces, or other non-uniform planes, and are not limited to two surfaces; they can also be on multiple surfaces. A vortex tongue 104, an internal flow guiding structure 105, an outlet air duct 106, and cross-flow blades 3 are disposed within the housing 1. The vortex tongue 104, the internal flow guiding structure 105, and the outlet air duct 106 are located between the cross-flow blades 3 and the air outlets 102, and the minimum distance between the vortex tongue 104 and the outer edge of the cross-flow blades 3 is no more than 5 mm to reduce internal circulation of airflow within the housing. The internal flow guiding structure 105 constrains the outlet air ducts 106 to face the two side air outlets 102. The constraining structure includes, but is not limited to, plate-like structures. The structure can also be a block structure, a grille, a groove, or other structure that can restrict the airflow direction. The housing 1 also includes a heating module 107, which is located between the cross-flow blades 3 and the air outlet 102. A fin 108 is provided in the outlet air duct 106, and the heating module 107 transfers heat to the fin 108. The motor 301 and the control circuit 302 are located inside the housing 1. The motor 301 is connected to the cross-flow blades 3 and drives the cross-flow blades to rotate when energized. The control circuit 302 is connected to the motor 301 and the heating module 107 and controls the working state of the motor 301 and the heating module 107. A filter screen 303 can be optionally installed at the air inlet 101 of the housing 1. The filter screen 303 can be removed from the housing 1. A negative ion generator 304 is also provided between the cross-flow blades 3 and the air outlet 102 inside the housing 1. When working, the negative ion generator 304 makes the outlet airflow carry negative ions.

[0026] See Figure 3 , Figure 4 and Figure 5As shown, the external air guiding device 2 includes a rotating shaft 201 and a guide plate 202. The rotating shaft 201 is connected to the housing 1. The guide plate 202 can rotate with the rotating shaft 201 to several angles to change the air outlet direction. The angle between the external air guiding device 2 and the air outlet 102 is always an acute angle to ensure that the guide plate 202 of the external air guiding device 2 and the airflow blown out of the air outlet 102 are at a positive angle of attack. The guide plate 202 protrudes from the plane of the air outlet 102 of the housing 1 at multiple rotation angles.

[0027] When the zoned fan is working, the motor 301 drives the cross-flow blades 3 to rotate. The airflow enters the housing 1 from the inlet 101 driven by the cross-flow blades 3. Due to the constraint of the vortex tongue 104 and the internal guide structure 105, the airflow is diverted into the outlet air duct 106 and flows out of the housing 1 from the outlets 102 on both sides. The airflow exiting the housing 1 changes direction after hitting the guide plate 202 of the external guide device 2. The guide plate 202 can rotate with the shaft 201 to several angles, and the airflow passing through the guide plate 202 can also be blown in the direction corresponding to the angle. The airflow blown out of the outlets 102 on both sides forms an airflow angle region through the guide plates 202 on both sides. The "air wall" formed by the airflow on both sides can slow down the exchange of gas between the inside and outside in the airflow angle region and reduce the amount of polluted air from the outside. Due to the diffusion effect, the filter 303 and negative ion generator 304 installed inside the housing 1 enable the device to have a certain air purification function. The guide plate 202 protrudes from the plane of the air outlet 102 of the housing 1 at multiple rotation angles. The external design of the guide plate 202 increases the contact area of ​​the manual rotation of the external guide device 2, making it more convenient to adjust the air supply direction. At the same time, it also reduces the space occupied inside the housing 1, making the device more compact and lightweight. When the zoned fan is working, the heating module 107 is turned on at the same time. The heat generated by the heating module 107 is transferred to the fins 108 through heat conduction. The airflow through the outlet air duct 106 and the fins 108 undergo convective heat exchange. After the airflow temperature rises, it is blown out from the air outlet 102 and the external guide device 2. The blown warm air can provide heating function for users.

[0028] The present invention achieves the following technical effects: The present invention provides a zoned air supply device, which, through the design of the airflow path, can realize the function of zoned air supply on the left and right sides. The air outlet does not blow directly on the human body while reducing the problem of the diffusion of polluted air. In addition, the design of the external air guide device protruding from the shell makes it more convenient to adjust the air outlet direction, while reducing the occupation of the internal space of the shell. This makes the whole device compact and lightweight, which can meet the daily use needs of most users.

[0029] Obviously, those skilled in the art should understand that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the embodiments of the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A zoned air supply device comprising a housing (1), an external flow guide device (2), a cross-flow vane (3), characterized in that: The shell (1) comprises an air inlet (101), an air outlet (102), a vortex tongue (104), an internal flow guide structure (105) and an outlet air duct (106), the through-flow blade (3) is arranged inside the shell (1), the air inlet (101) is arranged on the shell (1), the air outlet (102) is arranged on both sides of the shell (1), the vortex tongue (104), the internal flow guide structure (105) and the outlet air duct (106) are arranged between the through-flow blade (3) and the air outlet (102), the internal flow guide structure (105) restricts the outlet air duct (106) to be directed towards the air outlets (102) on both sides, the external flow guide device (2) comprises a rotating shaft (201) and a flow guide plate (202), the rotating shaft (201) is connected with the shell (1), the flow guide plate (202) can be rotated to a plurality of angles with the rotating shaft (201) to change the air outlet direction, and the flow guide plate (202) protrudes the plane of the air outlet (102) of the shell (1) at a plurality of rotation angles.

2. The zoned air supply device of claim 1, wherein The minimum distance between the vortex tongue (104) and the outer edge of the through-flow blade (3) is less than or equal to 5 mm.

3. The zoned air supply device of claim 1, wherein, The external flow guide device (2) and the air outlet (102) form an acute angle, and the flow guide plate (202) of the external flow guide device (2) and the airflow blown out by the air outlet (102) form a positive angle of attack.

4. The zoned air supply device of claim 1, wherein, The shell (1) further comprises a heating module (107), and the heating module (107) is arranged between the through-flow blade (3) and the air outlet (102).

5. A zoned air supply device according to claim 4, wherein The heating module (107) further comprises a fin (108), and the fin (108) is arranged in the outlet air duct (106).

6. The zoned air supply device of claim 4, wherein, The shell (1) is internally provided with a motor (301) and a control circuit (302), the motor (301) is connected with the through-flow blade (3), and the control circuit (302) is connected with the motor (301) and the heating module (107).

7. The apparatus of claim 1, wherein, The air inlet (101) of the shell (1) is provided with a filter screen (303), and the filter screen (303) is detachable.

8. The zoned air supply device of claim 6, wherein, The shell (1) is further provided with a negative ion generator (304), the negative ion generator (304) is arranged between the through-flow blade (3) and the air outlet (102) and is connected with the control circuit (302).

9. The zoned air supply device of claim 6, wherein, The shell (1) further comprises a display screen (103), and the display screen (103) is arranged on the front face of the shell (1) and is connected with the control circuit (302).

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