Cold air fan structure and air purifier

Abstract

The utility model belongs to the technical field of fans, and particularly relates to a cold air fan structure and an air purifier, the cold air fan structure comprises a support and a fan body arranged on the support, and the fan body comprises a shell, a refrigeration cavity, a sealing cover and a fan; an air inlet and an air outlet are respectively formed in two ends of the air duct; the fan is arranged in the air duct and is closer to the air inlet, and the refrigeration cavity is arranged in the air duct and is closer to the air outlet; an annular air opening is formed between the outer side of the refrigeration cavity and the air outlet. A cavity with an opening is formed in the refrigeration cavity and used for storing a refrigeration part. And the sealing cover detachably covers the opening part of the cavity. The refrigerating part exchanges heat with the side wall of the refrigerating cavity, so that the temperature of the refrigerating cavity is rapidly reduced, the draught fan enables the air channel to form airflow, air is fed from the air inlet and discharged from the annular air opening, when the airflow passes through the outer side wall of the refrigerating cavity, the refrigerating cavity exchanges heat with the airflow, and the airflow is cooled, so that air blown out of the annular air opening is cold air; and the heat dissipation and cooling effects are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of fan technology, and in particular relates to a cold air fan structure and an air purifier. Background Technology

[0002] A fan is a device used to generate airflow and cool down in hot weather. An electric fan is a device that uses electricity to produce airflow. The fan inside rotates when powered on, creating a natural breeze to achieve a cooling effect. The effectiveness of a fan in cooling down depends mainly on the ambient temperature; the higher the ambient temperature, the less effective it is at cooling. To improve the cooling effect, water or ice is added inside the fan to achieve the desired cooling effect. For example, Chinese utility model patent document CN220250188U discloses a folding fan with a cooling effect, including a folding support and a fan body. The fan body is mounted on the folding support. A cooling box is located at the center of the outer front of the fan body. A drain box is connected to the bottom of the cooling box. A water tank is located at the center of the interior of the cooling box. A mist nozzle is connected to the outer front of the water tank. A first water pump is located inside the water tank. The mist nozzle is connected to the output end of the first water pump through a nozzle pipe. An end plate is located on the inner wall of the inner end of the cooling box. A semiconductor cooling element is located inside the end plate. The inner side of the end plate is attached to the back of the water tank. A water inlet is located at the top of the water tank. A drain groove connected to the drain box is located at the bottom of the front of the cooling box. By driving the first water pump, in conjunction with the nozzle and mist sprayer, water is sprayed. The sprayed water mist is blown forward by the fan and comes into contact with people, achieving a cooling effect. At the same time, the semiconductor cooling element is activated to cool the inside of the cooling box. The end plate is attached to the side wall of the water tank, which can cool the water in the tank. Therefore, when spraying water, the sprayed water mist is ice water, which is cooler when in contact with the human body, achieving a good cooling effect.

[0003] The aforementioned patent document describes a method of cooling water using a refrigeration module and then atomizing the water and blowing it toward the human body, which could cause discomfort. Utility Model Content

[0004] The purpose of this invention is to provide a cooling fan structure to solve the problem that existing cooling fans spray water mist directly onto the human body, causing discomfort.

[0005] To achieve the above objectives, this utility model provides a cooling fan structure, including a bracket and a fan body mounted on the bracket. The fan body includes a housing, a refrigeration chamber, a sealing cover, and a fan. An air duct is provided inside the housing, with an air inlet and an air outlet at each end. The fan is located within the air duct, closer to the air inlet, and the refrigeration chamber is located within the air duct, closer to the air outlet. An annular air vent is formed between the outer side of the refrigeration chamber and the air outlet. An open cavity is provided inside the refrigeration chamber for storing refrigeration components. The sealing cover detachably covers the opening of the cavity.

[0006] Furthermore, the cooling component is an ice crystal package.

[0007] Furthermore, the refrigeration cavity includes a support ring and a heat-conducting shell. The support ring is located at the air outlet, and a plurality of connecting ribs are provided between the inner side of the support ring and the air outlet. The heat-conducting shell is located on the inner side of the support ring, and the cavity is located inside the heat-conducting shell. The sealing cover covers the outer side of the support ring.

[0008] Furthermore, a support ring is provided on the outer side of the support ring, the support ring is provided with multiple clearance grooves, and a locking position is provided on the side of the support ring near the clearance grooves; an inner ring extends from the inner side of the sealing cover, and an L-shaped hook is provided on the outer side of the inner ring for engaging with the locking position; the locking position is provided with a cavity, and the cavity makes the locking position have an elastic wall.

[0009] Furthermore, the bottom of the vented groove is provided with a connecting hole, through which a locking screw passes to connect with the heat-conducting shell.

[0010] Furthermore, the fan includes a housing, a motor, and a turbine; the housing is fixedly connected to the side of the refrigeration chamber away from the air outlet, the motor is located inside the housing, the main shaft of the motor extends out of the housing, and the turbine is located on the main shaft of the motor.

[0011] Furthermore, the end of the air duct near the air inlet is a conical structure, and the end face of the turbine near the air inlet is a conical surface.

[0012] Furthermore, the housing includes an outer shell, an inner shell, and a connecting plate; the inner shell is disposed inside the outer shell, and one end of the outer shell near the air outlet radially contracts and engages with the end side of the inner shell; the connecting plate connects the other end of the outer shell and the inner shell, thereby forming a noise reduction cavity between the inner shell and the outer shell.

[0013] Furthermore, the bracket includes a bottom shell and support seats on both sides of the bottom shell, with the shell rotatably connected between the two support seats; a motor is also provided between the outer shell and the inner shell, and the rotating shaft of the motor is fixedly connected to the support seats; a rotating support position is provided on the inner side of the support seat, and a rotating connection position is provided on the outer side of the outer shell, with the rotating connection position cooperating with the rotating support position; a wear-resistant block is also provided around the outer side of the rotating connection position, and a plurality of wear-resistant teeth are provided on the side of the wear-resistant block near the support seat.

[0014] The above-mentioned technical solutions in the cooling fan structure provided by this utility model embodiment have at least the following technical effects: the cooling component can be placed inside the cooling chamber and fixed inside the cooling chamber using a sealing cover. Heat exchange between the cooling component and the side wall of the cooling chamber causes the temperature of the cooling chamber to drop rapidly. The fan creates airflow in the duct, with air entering through the air inlet and exiting through the annular air outlet. When the airflow passes through the outer wall of the cooling chamber, heat exchange occurs between the cooling chamber and the airflow, cooling the airflow. Therefore, the air blown out from the annular air outlet is cold air, achieving the effect of heat dissipation and cooling. This also replaces existing fans that use water atomization for heat dissipation and cooling, providing a better user experience.

[0015] An air purifier includes a cooling fan structure and a filter device, wherein the filter device is disposed at the air inlet; the filter device includes a filter housing and a filter element, wherein an annular groove and a first connector are provided on the end side of the housing around the air inlet, and a second connector is provided at the end of the filter housing for connecting the first connector; a flange is also provided on the inner end side of the filter housing, and one end of the filter element is disposed in the annular groove and the other end is sleeved on the outside of the flange.

[0016] The air purifier provided in this embodiment of the present invention has at least the following technical effects:

[0017] This invention can also incorporate a filter device at the air inlet of the cooling fan, thereby achieving the effect of an air purifier. Specifically, the fan creates airflow within the duct, and outside air enters the duct after being filtered by the filter element, thus removing dust and other particles, as well as particulate matter, achieving the effect of air purification. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a structural diagram of a cooling fan provided in an embodiment of the present invention.

[0020] Figure 2 A front view of a cooling fan provided in an embodiment of this utility model.

[0021] Figure 3 for Figure 2 AA sectional view.

[0022] Figure 4 for Figure 2 BB cross-sectional view.

[0023] Figure 5 This is a structural diagram of the other side of the cooling fan provided in an embodiment of the present utility model.

[0024] Figure 6 A cross-sectional view of the housing of a cooling fan provided in an embodiment of this utility model.

[0025] Figure 7 This is a structural diagram of the cold air fan with the sealing cover opened, as provided in an embodiment of the present utility model.

[0026] Figure 8 This is a structural diagram of the sealing cover of the cooling fan provided in an embodiment of the present utility model.

[0027] Figure 9 This is a structural diagram of an air purifier provided in an embodiment of the present invention.

[0028] Figure 10 An exploded view of the filtration device of an air purifier provided in an embodiment of this utility model.

[0029] Figure 11 A structural diagram of the filter housing of an air purifier provided in an embodiment of this utility model.

[0030] Figure 12 This is a structural diagram of the rotating connection part of the air purifier provided in an embodiment of the present utility model. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0032] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0035] In one embodiment of the cooling fan structure of this utility model, please refer to... Figures 1 to 7The cooling fan of this embodiment includes a bracket 10 and a fan body mounted on the bracket. The fan body includes a housing 100, a cooling chamber 200, a sealing cover 300, and a fan 400. An air duct 101 is provided inside the housing 100, with an air inlet 102 and an air outlet at each end of the air duct 101. The fan 400 is located inside the air duct 101, closer to the air inlet 102, and the cooling chamber 200 is located inside the air duct 101, closer to the air outlet. The outer side of the cooling chamber 200 forms an annular air outlet 103 at the air outlet. The cooling chamber 200 has an open cavity 201 for storing a cooling component 500; the sealing cover 300 detachably covers the opening of the cavity 201. Specifically, the cooling component 500 can be placed inside the cavity 201 of the cooling chamber 200 and fixed inside the cooling chamber 200 using the sealing cover 300. The cooling component 500 exchanges heat with the side wall of the refrigeration chamber 200, causing the temperature of the refrigeration chamber 200 to drop rapidly. The fan 400 creates airflow in the air duct 101, drawing air in through the air inlet 102 and expelling it through the annular vent 103. As the airflow passes over the outer wall of the refrigeration chamber 200, heat exchange occurs between the refrigeration chamber 200 and the airflow, cooling the airflow. Therefore, the air blown out from the annular vent 103 is cold air, achieving the effect of heat dissipation and cooling. This also replaces existing fans that use water atomization for cooling, providing a better user experience.

[0036] Additionally, a filter device 600 can be installed at the air inlet of the cooling fan in this embodiment to achieve the effect of an air purifier. For details, please refer to... Figures 9 to 12 A filter device 600 is disposed at one end of the air inlet 102. The filter device 600 includes a filter housing 610 and a filter element 620. More specifically, the end side of the housing 100 is provided with an annular groove 104 and a first connector 105 around the air inlet 102, and the end of the filter housing 610 is provided with a second connector 611 for connecting the first connector 105. The first connector 105 may be an outwardly protruding L-shaped hook structure, and the second connector 611 may be a limiting member disposed within the filter housing 610. When the filter housing 610 is fitted onto the tail end of the housing 100, rotating the filter housing 610 causes the first connector 105 and the second connector 611 to engage with each other, thereby fixing the filter housing 610 to the end side of the housing 100. Furthermore, one end of the filter element 620 is inserted into the annular groove 104, and the other end is fitted onto the flange 612 on the inner end side of the filter housing 610, so that the filter element 620 completely covers the air inlet 102, thereby achieving the filtration and purification of the air entering from the air inlet 102.

[0037] Furthermore, the refrigeration component is a 500 series ice pack. Two or more ice packs can be used interchangeably.

[0038] Furthermore, refer to Figure 6The refrigeration chamber 200 includes a support ring 210 and a heat-conducting shell 220. The support ring 210 is located at the air outlet, and several connecting ribs 202 are provided between the support ring 210 and the inner side of the air outlet. The heat-conducting shell 220 is located inside the support ring 210, and a cavity 201 is located inside the heat-conducting shell 220; a sealing cover 300 covers the outer side of the support ring 210. Specifically, the heat-conducting shell 220 can be a bowl-shaped aluminum shell structure. Therefore, the good thermal conductivity of the aluminum shell can be utilized to achieve high-efficiency heat exchange.

[0039] Furthermore, refer to Figure 1 , Figure 3 , Figure 4 Figure 6 and Figure 7 The support ring 210 has a support ring 211 on its outer side, and the support ring 211 has multiple clearance grooves 212. A locking position 213 is provided on the side of the support ring 211 near the clearance grooves 212. An inner ring 310 extends from the inner side of the sealing cover 300, and an L-shaped hook 311 is provided on the outer side of the inner ring 310 for engaging with the locking position 213. Specifically, when the sealing cover 300 is closed with the support ring 210, the sealing cover 300 can be rotated to engage the hook 311 with the locking position 213. Furthermore, the locking position 213 has a cavity, which forms an elastic wall 214 within the locking position 213. Therefore, when the hook 311 engages with the locking position 213, the elastic force of the elastic wall 214 further secures the hook 311 to the locking position 213, making the connection between the sealing cover 300 and the support ring 210 even tighter.

[0040] Furthermore, refer to Figure 7 The bottom of the recessed groove 212 is provided with a connecting hole, and the locking screw passes through the connecting hole to connect with the heat-conducting shell 220.

[0041] Furthermore, refer to Figure 3 and Figure 4 The fan 400 includes a housing 410, a motor 420, and a turbine 430. The housing 410 is fixedly connected to the side of the refrigeration chamber 200 away from the air outlet. The motor 420 is located inside the housing 410, with its main shaft extending out of the housing 410. The turbine 430 is mounted on the main shaft of the motor 420. In this embodiment, the motor 420 drives the turbine 430 to rotate, thereby rotating the airflow. Furthermore, the housing 410 is located on the outside of the refrigeration chamber 200, which allows for heat dissipation and cooling of the motor 420, ensuring its normal operation. Moreover, a wire groove 411 is provided on one side of the housing 410 to connect to the inner wall of the housing 100, allowing the wires connecting the motor 420 to pass through it. The wire groove 411 also increases the connection strength of the housing 410.

[0042] Furthermore, refer to Figure 4The end of the air duct 101 near the air inlet 102 is a conical structure, and the end face of the turbine 430 near the air inlet 102 is also a conical surface. This allows the turbine 430 to better compress the airflow and increase the power of the airflow.

[0043] Furthermore, the housing 100 includes an outer shell 110, an inner shell 120, and a connecting plate 130. The inner shell 120 is disposed inside the outer shell 110. The end of the outer shell 110 near the air outlet radially contracts and engages with the end side of the inner shell 120. The connecting plate 130 connects the other ends of the outer shell 110 and the inner shell 120, fixing the inner shell 120 and the outer shell 110 together, and forming a noise reduction cavity 106 between them to reduce the noise of the fan 400 during operation.

[0044] Furthermore, the support ring 210 is integrally formed with the inner shell 120. Even further, to facilitate the installation of the filter shell 610, the annular groove 104 and the first connector 105 can be provided on the end side of the reconnecting disc 130.

[0045] Furthermore, rubbing Figure 3 and Figure 12 The bracket 10 includes a bottom shell 11 and support seats 12 located on both sides of the bottom shell. The shell 100 is rotatably connected between the two support seats 12, allowing adjustment of the tilt angle of the air outlet. Furthermore, a motor 700 is provided between the outer shell 110 and the inner shell 120, with the motor 700's shaft fixedly connected to the support seat 12. A rotating support position 13 is provided on the inner side of the support seat 12, and a rotating connection position 111 is provided on the outer side of the shell 110, with the rotating connection position 111 engaging with the rotating support position 13. Therefore, in this embodiment, the motor 700 can drive the fan body to oscillate up and down, achieving the function of vertical airflow. Furthermore, a wear-resistant block 112 is provided around the outer side of the rotating connection position 111, with several wear-resistant teeth 113 distributed on the side of the wear-resistant block 112 near the support seat 12. The wear-resistant teeth 113 can reduce the contact area between the outer shell 110 and the support base 12, thereby reducing wear. In addition, the grooves formed by the wear-resistant teeth 113 can also store lubricating oil, further reducing wear and making the up-and-down movement smoother.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 cooling fan structure, comprising a bracket and a fan body mounted on the bracket, characterized in that, The fan body includes a housing, a refrigeration chamber, a sealing cover, and a fan; the housing has an air duct, with an air inlet and an air outlet at each end; the fan is located inside the air duct, closer to the air inlet, and the refrigeration chamber is located inside the air duct, closer to the air outlet; an annular air vent is formed between the outer side of the refrigeration chamber and the air outlet; the refrigeration chamber has an open cavity for storing refrigeration components; the sealing cover detachably covers the opening of the cavity.

2. The cooling fan structure according to claim 1, characterized in that: The refrigeration component is an ice crystal package.

3. The cooling fan structure according to claim 1, characterized in that: The refrigeration chamber includes a support ring and a heat-conducting shell. The support ring is located at the air outlet, and a plurality of connecting ribs are provided between the support ring and the inner side of the air outlet. The heat-conducting shell is located on the inner side of the support ring, and the cavity is located inside the heat-conducting shell. The sealing cover covers the outer side of the support ring.

4. The cooling fan structure according to claim 3, characterized in that: The outer side of the support ring is provided with a support ring, the support ring is provided with multiple clearance grooves, and the side of the support ring near the clearance groove is provided with a locking position; the inner side of the sealing cover extends with an inner ring, and the outer side of the inner ring is provided with an L-shaped hook for cooperating with the locking position; the locking position is provided with a cavity, and the cavity makes the locking position have an elastic wall.

5. The cooling fan structure according to claim 4, characterized in that: The bottom of the vented groove is provided with a connecting hole, and the locking screw passes through the connecting hole to connect with the heat-conducting shell.

6. The cooling fan structure according to any one of claims 1 to 5, characterized in that: The fan includes a housing, a motor, and a turbine; the housing is fixedly connected to the side of the refrigeration chamber away from the air outlet, the motor is located inside the housing, the main shaft of the motor extends out of the housing, and the turbine is located on the main shaft of the motor.

7. The cooling fan structure according to claim 6, characterized in that: The end of the air duct near the air inlet is a conical structure, and the end face of the turbine near the air inlet is a conical surface.

8. The cooling fan structure according to any one of claims 1 to 5, characterized in that: The housing includes an outer shell, an inner shell, and a connecting plate; the inner shell is disposed inside the outer shell, and one end of the outer shell near the air outlet radially contracts and engages with the end side of the inner shell; the connecting plate connects the other end of the outer shell and the inner shell, so that a noise reduction cavity is formed between the inner shell and the outer shell.

9. The cooling fan structure according to claim 8, characterized in that: The bracket includes a bottom shell and support seats on both sides of the bottom shell, with the shell rotatably connected between the two support seats; a motor is also provided between the outer shell and the inner shell, and the rotating shaft of the motor is fixedly connected to the support seats; a rotating support position is provided on the inner side of the support seat, and a rotating connection position is provided on the outer side of the outer shell, with the rotating connection position cooperating with the rotating support position; a wear-resistant block is also provided around the outer side of the rotating connection position, and a plurality of wear-resistant teeth are provided on the side of the wear-resistant block near the support seat.

10. An air purifier, characterized in that, The cooling fan structure according to any one of claims 1 to 9 further includes a filter device disposed at the air inlet; the filter device includes a filter housing and a filter element, the end side of the housing is provided with an annular groove and a first connector around the air inlet, the end of the filter housing is provided with a second connector for connecting the first connector; the inner end side of the filter housing is also provided with a flange, one end of the filter element is disposed in the annular groove, and the other end is sleeved on the outside of the flange.

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