Air supply device

Abstract

The utility model relates to an air supply device. The air supply device comprises a base and a machine head. An air duct is arranged in the base and comprises a first end and a second end which are oppositely arranged, a warm air opening is formed in the first end, and the warm air opening and the second end are both communicated with the outside; the machine head is provided with an air inlet and a cold air port, and the machine head is movably mounted on the base; the air supply device can be switched between a cold air mode and a warm air mode, in the cold air mode, air entering from the air inlet is discharged through the cold air outlet, and the air outlet direction of the air supply device deviates from the second end; in the warm air mode, the air outlet direction of the cold air opening faces the second end, and air entering from the air inlet sequentially passes through the cold air opening and the second end and is discharged from the warm air opening. According to the air supply device, the same fan is adopted to supply air in the cold air mode and the warm air mode, and the air outlet path in the cold air mode and the air outlet path in the warm air mode are mutually independent, so that the air outlet amount of the air supply device in the cold air mode is slightly influenced, and the air outlet amount can be increased.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and particularly to a air supply device. Background Art

[0002] Fans are usually used to accelerate the flow rate of natural wind and speed up the heat dissipation of the human body. However, blowing the fan at the human body for a long time will increase the sense of fatigue. Therefore, the air circulation fan came into being.

[0003] The air circulation fan stirs the air to form a convection cycle of the indoor air, thereby accelerating the air circulation speed. With the increase of user requirements, the demand for air circulation fans that can refrigerate and heat up gradually increases. The air circulation fans with dual cooling and heating functions usually have the problem of small air volume when blowing cold air, which affects the user experience. Utility Model Content

[0004] This application aims at the problem of small air volume when the existing air supply device blows cold air, and proposes an air supply device, which has the technical effect of large air volume when the air supply device is in the cold air mode.

[0005] An air supply device includes:

[0006] A base, which is internally provided with an air duct. The air duct includes a first end and a second end arranged oppositely. The first end is provided with a warm air inlet, and both the warm air inlet and the second end are communicated with the outside;

[0007] A machine head, which is provided with an air inlet and a cold air outlet. The machine head is movably installed on the base;

[0008] The air supply device can be switched between a cold air mode and a warm air mode. When in the cold air mode, the gas entering from the air inlet exits through the cold air outlet, and its air outlet direction is away from the second end;

[0009] When in the warm air mode, the air outlet direction of the cold air outlet faces the second end. The gas entering from the air inlet sequentially passes through the cold air outlet and the second end, and exits from the warm air inlet.

[0010] In summary, the above air supply device uses the same fan to supply air in the cold air mode and the warm air mode, and the air outlet paths in the cold air mode and the warm air mode are independent of each other. Therefore, the influence on the air volume in the cold air mode of the air supply device is small, and the air volume can be increased.

[0011] In one embodiment, the base extends along a first direction, the first end and the second end are spaced apart along the first direction, the first end is located at the bottom of the base, its opening direction intersects with the first direction, and the opening direction of the second end is the same as the first direction.

[0012] Since the first end is located at the bottom of the base, hot air can be discharged from a lower position. In addition, hot air is heavier than cold air and rises continuously over time. Therefore, hot air can be more evenly distributed within the action area of the air supply device, improving the heating effect of the air supply device.

[0013] In addition, in the warm air mode, since the gas flowing out of the cold air outlet directly enters the air duct through the second end, it is possible to reduce its flow path while ensuring the low-level discharge of hot air, thereby minimizing the air volume loss as much as possible.

[0014] In one embodiment, the base is telescopically arranged along the first direction, and the second end is located at the end face of the base along the first direction, so that the length of the air duct along the first direction is adjustable.

[0015] When the environment where the air supply device is located changes, the length of the air duct can be adjusted according to the actual situation to change the air volume, and the height where the warm air outlet is located can also be adjusted to change the outlet height of the hot air, so as to adapt to different environments and meet the needs of users.

[0016] In one embodiment, the air supply device further includes a bracket, one end of the bracket is movably connected to the machine head, and the other end is connected to the base.

[0017] In this way, using the bracket to connect the machine head and the base together can provide a large movement range for the machine head, improve the freedom of movement of the machine head, and reduce the probability of interference between the machine head and the base.

[0018] In one embodiment, the bracket is movably connected to the base along the first direction.

[0019] In this way, the height of the cold air outlet can be changed according to the blowing needs, so as to expand the use flexibility of the air supply device and increase the use range of the air supply device.

[0020] In one embodiment, the bracket is sleeved outside the base.

[0021] With this arrangement, the structure of the bracket is simplified, and the assembly difficulty of the bracket and the moving difficulty of the bracket relative to the base are reduced.

[0022] In one embodiment, the machine head is detachably connected to the bracket.

[0023] When the machine head is damaged, the damaged machine head is removed from the bracket and replaced with a new one for installation. Compared with replacing the machine head and the bracket as a whole, the maintenance cost of the air supply device is reduced.

[0024] In one embodiment, the base and the bracket are detachably connected.

[0025] When either the base or the bracket is damaged, it can be replaced with a new base and bracket. Compared with replacing the base and bracket as a whole, the maintenance cost of the air supply device is reduced.

[0026] In one embodiment, the air supply device further includes a protection net, and the protection net is disposed to cover the second end.

[0027] Since the second end is the air inlet of the air duct, covering the protection net at the second end can not only block some dust and impurities, but also support some items, reducing the risk of them falling into the air duct from the second end and thus affecting the air outlet effect of the air duct.

[0028] In one embodiment, the air supply device includes a heating element, and the heating element is located in the air duct and is disposed near the first end.

[0029] With this arrangement, the heat dissipation rate of the hot air is slowed down, and the heating effect of the air supply device can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 FIG. is an exploded schematic view of an air supply device provided by some embodiments of the present application.

[0031] Figure 2 FIG. is a schematic structural view of an air supply device provided by some embodiments of the present application in a cold air mode.

[0032] Figure 3 FIG. is a cross-sectional view of an air supply device provided by some embodiments of the present application in a cold air mode.

[0033] Figure 4 FIG. is a schematic structural view of an air supply device provided by some embodiments of the present application in a warm air mode.

[0034] Figure 5 FIG. is a cross-sectional view of an air supply device provided by some embodiments of the present application in a warm air mode.

[0035] DESCRIPTION OF REFERENCE NUMERALS:

[0036] 10. Base; 11. Air duct; 111. First end; 1111. Warm air outlet; 112. Second end; 20. Machine head; 21. Air inlet; 22. Cold air outlet; 30. Bracket; 40. Protection net; 50. Heating element; X. First direction; Y. Second direction; 100. Air supply device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] To make the above objects, features, and advantages of the present application more apparent and understandable, the following describes the specific embodiments of the present application in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0040] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0043] Please refer to Figure 1 and Figure 2 , some embodiments of the present application provide an air supply device 100, which includes a base 10 and a machine head 20. A duct 11 is provided inside the base 10. The duct 11 includes a first end 111 and a second end 112 which are oppositely arranged. A warm air outlet 1111 is provided at the first end 111, and both the warm air outlet 1111 and the second end 112 are communicated with the outside; an air inlet 21 and a cold air outlet 22 are provided on the machine head 20, and the machine head 20 is movably installed on the base 10; the air supply device 100 can be switched between a cold air mode and a warm air mode. In the cold air mode, the gas entering from the air inlet 21 exits through the cold air outlet 22, and its air outlet direction is away from the second end 112; in the warm air mode, the air outlet direction of the cold air outlet 22 faces the second end 112, and the gas entering from the air inlet 21 sequentially passes through the cold air outlet 22 and the second end 112, and exits from the warm air outlet 1111.

[0044] The base 10 is used to carry the machine head 20, and the base 10 can be placed on the surface to be placed. An air supply component such as an axial flow fan is provided inside the machine head 20. An axial flow fan with large-angle blades can be selected. When the axial flow fan operates, outside air enters the machine head 20 through the air inlet 21 and is discharged from the cold air outlet 22.

[0045] The working principle of the air supply device 100 will be described below in combination with the switching of the air supply device 100 between the cold air mode and the warm air mode.

[0046] As Figure 2 and Figure 3 shown, when the air supply device 100 is in the cold air mode, the air outlet direction of the cold air outlet 22 does not face the second end 112 of the duct 11, that is, air cannot be supplied into the duct 11. When the axial flow fan operates, the air flow enters the machine head 20 through the air inlet 21 and is discharged from the cold air outlet 22.

[0047] As Figure 4 and Figure 5As shown in the figure, when the air supply device 100 is switched to the warm air mode, the cold air outlet 22 of the machine head 20 can be first aligned with the second end 112. When the axial flow fan operates, the air flow enters the machine head 20 from the air inlet 21, then flows out from the cold air outlet 22 and enters the second end 112, and then enters the air duct 11 through the second end 112, and finally flows out from the warm air outlet 1111 of the first end 111. It should be noted that the gas is heated in the air duct 11, so the hot gas flows out from the warm air outlet 1111.

[0048] In summary, the above air supply device 100 uses the same fan to supply air in the cold air mode and the warm air mode, and the air outlet paths in the cold air mode and the warm air mode are independent of each other. Therefore, the influence on the air volume output in the cold air mode of the air supply device 100 is small, and the air volume output can be increased.

[0049] As Figure 1 shown in the figure, in some embodiments, the base 10 extends along the first direction X, the first end 111 and the second end 112 are spaced apart along the first direction X, the first end 111 is located at the bottom of the base 10, and its opening direction intersects the first direction X, and the opening direction of the second end 112 is the same as the first direction X.

[0050] Exemplarily, the air supply device 100 is placed on a tabletop. Assume that the direction perpendicular to the tabletop is the first direction X, and the direction parallel to the tabletop is the second direction Y. The first end 111 and the second end 112 are spaced along the first direction X on the base 10, and the first end 111 is close to the tabletop, and the opening direction of the first end 111 is parallel to the second direction Y. The second end 112 is located at the top of the base 10, and its opening direction is parallel to the first direction X.

[0051] When the air supply device 100 is in the warm air mode, the gas flowing out from the cold air outlet 22 enters the air duct 11 through the second end 112, and after flowing along the air duct 11 for a certain distance, it is discharged to the outside from the warm air outlet 1111 of the first end 111. Since the first end 111 is located at the bottom of the base 10, hot air can be discharged from a lower position. Coupled with the fact that hot air is heavier than cold air, as time goes by, the hot air continuously rises, so the hot air can be more evenly distributed in the action area of the air supply device 100, improving the heating effect of the air supply device 100.

[0052] In addition, when in the warm air mode, since the gas flowing out from the cold air outlet 22 directly enters the air duct 11 through the second end 112, it can ensure the discharge of hot air at a low position while reducing its flow path, thereby minimizing the air volume loss as much as possible.

[0053] In some embodiments, the base 10 is telescopically arranged along the first direction X, and the second end 112 is located on the end face of the base 10 along the first direction X, so that the length of the air duct 11 along the first direction X is adjustable.

[0054] Exemplarily, the part of the base 10 where the air duct 11 is provided may be composed of a plurality of sleeves, and two adjacent sleeves are sleeved together along the first direction X. The user can adjust the overall length of the base 10 in the first direction X to adjust the length of the air duct 11, thereby reducing the loss of air volume.

[0055] It should be noted that, in some examples, the base 10 further includes a supporting portion, which is connected to the sleeve and is the bottom of the base 10. One of the sleeves disposed close to the supporting portion is provided with a warm air outlet 1111. When the user moves the sleeve along the first direction X, the distance between the warm air outlet 1111 and the supporting portion can be adjusted, thereby changing the height of the warm air outlet 1111, and further changing the height of the hot air outlet.

[0056] When the environment where the air supply device 100 is located changes, the length of the air duct 11 can be adjusted according to the actual situation to change the air volume, and the height of the warm air outlet 1111 can also be adjusted to change the height of the hot air outlet, so as to adapt to different environments and meet the needs of users.

[0057] As Figure 1 shown, in some embodiments, the air supply device 100 further includes a bracket 30. One end of the bracket 30 is movably connected to the machine head 20, and the other end is connected to the base 10.

[0058] The connection manner between the bracket 30 and the base 10 can be, but is not limited to, a threaded connection. The connection manner between the bracket 30 and the machine head 20 can be, but is not limited to, a rotational connection. Regarding the bracket 30 and the base 10 as a whole, the machine head 20 can rotate 360° relative to the bracket 30. Therefore, the machine head 20 can rotate 360° relative to the base 10.

[0059] Connecting the machine head 20 and the base 10 together by using the bracket 30 can provide a large movement range for the machine head 20, improve the freedom of movement of the machine head 20, and reduce the probability of interference between the machine head 20 and the base 10.

[0060] Of course, in other embodiments, the machine head 20 is directly mounted on the base 10. In this embodiment, as long as the machine head 20 can rotate relative to the base 10 to switch back and forth between the cold air mode and the warm air mode.

[0061] Specifically, in some embodiments, the bracket 30 is movably connected to the base 10 along the first direction X.

[0062] For example, a plurality of clamping blocks are provided on the base 10 and are spaced apart along the first direction X, and a clamping groove is provided on the bracket 30. When the air supply device 100 is in the cold air mode and it is necessary to adjust its air supply height, the clamping groove of the machine head 20 can be clamped with the corresponding clamping block to change the distance between the machine head 20 and the base 10, thereby changing the height of the machine head 20 and further changing the air outlet height of the cold air outlet 22.

[0063] In this way, the height of the cold air outlet 22 can be changed according to the blowing needs, so as to expand the use flexibility of the air supply device 100 and improve the use range of the air supply device 100.

[0064] It should be noted that the bracket 30 can also be rotatably connected to the base 10, that is, the bracket 30 can rotate around the axis of the base 10 to drive the machine head 20 to rotate in multiple directions to realize air supply to different parts.

[0065] More specifically, please refer to Figure 1 In some embodiments, the bracket 30 is sleeved outside the base 10.

[0066] For example, the bracket 30 includes an annular portion, which is sleeved outside the base 10 and can move along the base 10 in the first direction X. While moving, the annular portion can drive the machine head 20 to move relative to the base 10.

[0067] With such a setting, the mechanism of the bracket 30 is simplified, and the assembly difficulty of the bracket 30 and the moving difficulty of the bracket 30 relative to the base 10 are reduced.

[0068] Furthermore, in some embodiments, the machine head 20 is detachably connected to the bracket 30.

[0069] For example, the connection manner between the machine head 20 and the bracket 30 can be but is not limited to clamping. When the machine head 20 is damaged, the damaged machine head 20 can be removed from the bracket 30 and replaced with a new machine head 20 for installation. Compared with replacing the machine head 20 and the bracket 30 as a whole, the maintenance cost of the air supply device 100 is reduced.

[0070] Still further, in an embodiment, the base 10 and the bracket 30 are detachably connected.

[0071] For example, the connection manner between the base 10 and the bracket 30 can be but is not limited to clamping. When any one of the base 10 and the bracket 30 is damaged, the damaged base 10 and bracket 30 can be replaced with new base 10 and bracket 30. Compared with replacing the base 10 and the bracket 30 as a whole, the maintenance cost of the air supply device 100 is reduced.

[0072] Such as Figure 1As shown, in some practical examples, the air supply device 100 further includes a protective net 40, and the protective net 40 is arranged to cover the second end 112.

[0073] Since the second end 112 is the air inlet of the air duct 11, covering the protective net 40 at the second end 112 can not only block some dust and impurities, but also support some items, reducing the risk of them falling into the air duct 11 from the second end 112, thereby affecting the air outlet effect of the air duct 11.

[0074] Please continue to refer to Figure 1 , in some embodiments, the air supply device 100 includes a heating element 50, and the heating element 50 is located in the air duct 11 and is arranged close to the first end 111.

[0075] The heating element 50 can be, but is not limited to, a heating wire, a PTC thermistor, or a heating tube. After the gas discharged from the cold air outlet 22 enters the air duct 11 through the second end 112, it flows a certain distance in the air duct 11 and then flows towards the heating element 50, and the hot air heated by the heating element 50 then flows out from the warm air outlet 1111 of the second end 112.

[0076] With this arrangement, the heat dissipation rate of the hot air is slowed down, and the heating effect of the air supply device 100 can be improved.

[0077] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0078] The above-described embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An air supply device, characterized in that: include: A base (10) having an air duct (11) disposed therein, the air duct (11) comprising a first end (111) and a second end (112) disposed opposite to each other, the first end (111) being provided with a warm air outlet (1111), the warm air outlet (1111) and the second end (112) both being in communication with the outside; A machine head (20) is provided with an air inlet (21) and a cold air outlet (22), and the machine head (20) is movably mounted on the base (10); The air supply device (100) is capable of switching between a cold air mode and a warm air mode. In the cold air mode, the air entering from the air inlet (21) is discharged through the cold air outlet (22), and the air outlet direction is away from the second end (112); In the warm air mode, the air outlet direction of the cold air outlet (22) is toward the second end (112), and the gas entering from the air inlet (21) passes through the cold air outlet (22) and the second end (112) in sequence, and is discharged from the warm air outlet (1111).

2. The air supply device according to claim 1, characterized in that: The base (10) is extended along a first direction X, the first end (111) and the second end (112) are spaced apart along the first direction X, the first end (111) is located at the bottom of the base (10), and its opening direction intersects with the first direction X, and the opening direction of the second end (112) is consistent with the first direction X.

3. The air supply device according to claim 2, characterized in that: The base (10) is telescopically arranged along the first direction X, and the second end (112) is located on an end surface of the base (10) along the first direction X, so that the length of the air duct (11) along the first direction X is adjustable.

4. The air supply device according to claim 2, characterized in that: The air supply device (100) further comprises a bracket (30), one end of the bracket (30) being movably connected to the machine head (20), and the other end of the bracket (30) being connected to the base (10).

5. The air supply device according to claim 4, characterized in that: The bracket (30) is movably connected to the base (10) along the first direction X.

6. The air supply device according to claim 5, characterized in that: The bracket (30) is sleeved on the outside of the base (10).

7. The air supply device according to claim 4, characterized in that: The machine head (20) is detachably connected to the bracket (30).

8. The air supply device according to claim 4, characterized in that: The base (10) and the bracket (30) are detachably connected.

9. The air supply device according to any one of claims 1 to 7, characterized in that: The air supply device (100) further comprises a protection net (40), wherein the protection net (40) is arranged to cover the second end (112).

10. The air supply device according to any one of claims 1 to 7, characterized in that: The air supply device (100) comprises a heating element (50), wherein the heating element (50) is located in the air duct (11) and is arranged close to the first end (111).

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