A handheld cooling fan

Abstract

The utility model discloses a kind of holding type refrigeration fans, fan body includes blowing part and holding part, fan body is provided with refrigeration device and heat dissipation conducting element, the holding part is provided with refrigeration conducting element, the refrigeration device refrigeration output end is connected with refrigeration conducting element heat conduction, the heat dissipation conducting element one end is communicated with the space in the air passage and is arranged, the other end is connected with the heat dissipation end of refrigeration device heat conduction, the utility model, in holding part outer surface place, it is provided with refrigeration conducting sheet, refrigeration conducting sheet realizes refrigeration effect after the effect of refrigeration device, consumer in holding use process, not only can not form stuffy feeling, but instead can through palm heart refrigeration improve fan's cooling effect, simultaneously, the heat generated in the process of cold and hot semiconductor energy exchange can use the high-speed air flow of air passage and promptly radiate heat, will not form heat accumulation, thus can save the manufacturing cost of heat dissipation mechanism under the premise of not affecting blowing effect, effectively save the manufacturing cost of refrigeration fan.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically a handheld cooling fan. Background Technology

[0002] Fans are common household appliances used to cool people down in hot weather. Fans are widely used for cooling purposes due to their practical function, and therefore possess powerful cooling capabilities. Market demand.

[0003] A handheld fan is a small fan with a handle attached to the main body. It can be carried around by holding the handle, and its portability makes it popular among consumers.

[0004] However, after prolonged use of handheld fans, consumers often experience stuffy and sweaty palms. This unpleasant sensation not only affects the user experience but also reduces the cooling effect of the fan. This is because the palm is a highly sensitive part of the body to temperature, and the information perceived is amplified by the brain, influencing the body's perception. If the palm feels stuffy, the subconscious mind tends to perceive a hot environment; conversely, if the palm feels cool, the subconscious mind tends to perceive a cool environment. Therefore, improving the unpleasant sensation caused by prolonged use of handheld fans is crucial for enhancing their performance. Currently, the most direct way to improve this is to use a cooling device to cool the fan's grip area.

[0005] However, according to the law of conservation of energy, the use of a refrigeration device will inevitably be accompanied by the generation of heat. Therefore, how to cool down the fan handle while simultaneously addressing the heat dissipation is the key to the technical solution and a problem that we urgently need to solve. Utility Model Content

[0006] The purpose of this utility model is to provide a handheld cooling fan with a cooling conduction plate on the outer surface of the grip. The cooling conduction plate achieves a cooling effect after being activated by the cooling device. When the user holds and uses the fan, it will not cause a stuffy feeling. On the contrary, the cooling effect of the fan can be enhanced by the cooling effect of the palm. At the same time, the heat generated during the energy exchange between the hot and cold semiconductors can be dissipated in time by the high-speed airflow through the air duct, without heat accumulation. Therefore, the manufacturing cost of the heat dissipation mechanism can be saved without affecting the blowing effect, effectively saving the manufacturing cost of the cooling fan and effectively solving the defects of the existing technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a handheld cooling fan, comprising a fan body, the fan body including a blowing section and a handheld section connected to the lower end of the blowing section, the blowing section having an air passage, the handheld section having a receiving cavity, a cooling device being disposed within the fan body, the cooling device including a cooling output end and a heat dissipation end, a cooling conductive element being disposed on the handheld section, the cooling conductive element being at least partially exposed on the outer surface of the handheld section and being contacted by a person when holding it, the cooling output end of the cooling device being thermally connected to the cooling conductive element, a heat dissipation conductive element being disposed within the fan body, the heat dissipation conductive element being connected to the air passage and the receiving cavity, one end of the heat dissipation conductive element being connected to the internal space of the air passage, and the other end being thermally connected to the heat dissipation end of the cooling device.

[0008] Preferably, a bracket is provided inside the fan body, and the cooling device is fixedly installed inside the fan body via the bracket.

[0009] Preferably, the cooling device is a semiconductor refrigeration chip.

[0010] Preferably, the blower section is provided with an air duct component, the air duct is formed within the air duct component, the air duct component is provided with a motor base, the motor base is mounted with a drive fan blade assembly, the blower section is provided with an air inlet and an air outlet, and the drive fan blade assembly guides the air located at the air inlet into the air duct and accelerates it outward from the air outlet.

[0011] Preferably, the motor base is coaxially arranged with the air duct, and the circumferential part of the motor base extends radially to form a cutting and pressurizing blade. The end of the cutting and pressurizing blade away from the motor base is connected to the inner wall of the air duct. The cutting and pressurizing blade is a curved sheet, and the virtual extension surface of the curved surface intersects with the central axis of the air duct.

[0012] Preferably, an air guide is provided at the air outlet, and an expansion cavity is coaxially provided on the inner side of the air guide. The circumferential part of the expansion cavity extends radially to form an air guide blade. The end of the air guide blade away from the expansion cavity is connected to the inner wall of the air guide. The air guide blade is a planar sheet material arranged parallel to the central axis of the air guide. A cavity cover is installed at the cavity opening of the expansion cavity.

[0013] Preferably, the air inlet is covered with an air inlet cover.

[0014] Preferably, the gripping part is provided with a circuit board assembly and a battery. The battery is electrically connected to the circuit board assembly. The circuit board assembly is arranged with a dot matrix LED light bead array. The gripping part housing has light-transmitting holes corresponding to the LED light beads on the LED light bead array. When the LED light beads emit light, the light can be emitted outward from the light-transmitting holes. A light shield is arranged around each LED light bead in the circumference direction. The outer edge of the light shield is tightly connected to the edge of the light-transmitting hole. A light-transmitting panel is encapsulated on the outside of the light-transmitting hole. The circuit board assembly is electrically connected with a control button and a USB interface. The control button and the USB interface are both located in a pre-set through hole in the gripping part housing and extend outward from the through hole.

[0015] Preferably, the heat dissipation conductive element is arranged circumferentially around the inner wall of the air passage at one end connected to the air passage, and the side wall facing the air passage is formed by multiple heat dissipation protrusions evenly arranged.

[0016] Preferably, the fan body includes a front fan housing and a rear fan housing that are connected to each other, the rear fan housing being the cooling conductor, and the cooling conductor being a non-porous steel component or an aluminum alloy component.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This invention features a cooling conduction plate on the outer surface of the grip. The cooling conduction plate achieves a cooling effect through the cooling device. During use, the user will not experience any stuffiness; instead, the cooling effect of the fan will be enhanced by the cooling effect of the palm. At the same time, the heat generated during the energy exchange between the hot and cold semiconductors can be dissipated in time by the high-speed airflow through the air duct, preventing heat accumulation. Therefore, the manufacturing cost of the heat dissipation mechanism can be saved without affecting the air blowing effect, effectively reducing the manufacturing cost of the cooling fan. Attached Figure Description

[0018] Figure 1 Explosion of the structure of this utility model Figure 1 ; Figure 2 Explosion of the structure of this utility model Figure 2 ; Figure 3 Explosion of the structure of this utility model Figure 3 ; Figure 4 This is a perspective view of the appearance of this utility model; Figure 5 This is a schematic diagram of the air duct component structure of this utility model.

[0019] In the diagram: 1. Air blowing section; 11. Cavity cover; 12. Air guide; 121. Expanded cavity; 122. Air guide blade; 13. Air duct component; 131. Motor base; 132. Air cutting and pressurizing blade; 14. Drive fan blade assembly; 15. Air inlet cover; 2. Handle; 21. Light-transmitting panel; 22. Fan front housing; 221. Air outlet; 222. Light-transmitting through hole; 23. Circuit board assembly; 231. LED beads; 232. Sunshade; 233. Control buttons; 234. USB interface; 24. Battery; 25. Heat dissipation component; 251. Heat dissipation ridge; 26. Bracket; 27. Semiconductor cooling chip; 28. Cooling component. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 A handheld cooling fan includes a fan body, which includes a blowing section 1 and a handheld section 2 connected to the lower end of the blowing section 1. The blowing section 1 has an airflow duct, and the handheld section 2 has a receiving cavity. A cooling device is disposed within the fan body, including a cooling output end and a heat dissipation end. A cooling conductive element 28 is disposed on the handheld section 2, at least partially exposed on the outer surface of the handheld section 2 and accessible to a person when held. In this embodiment, the fan body includes a front fan shell 22 and a rear fan shell that are mutually capped and connected. The rear fan shell is the cooling conductive element 28, which is a non-porous steel component or an aluminum alloy component. The cooling output end of the cooling device is thermally connected to the cooling conductive component 28. A heat dissipation conductive component 25 is provided inside the fan body. The heat dissipation conductive component 25 connects the air duct and the accommodating cavity. One end of the heat dissipation conductive component 25 communicates with the internal space of the air duct, and the other end is thermally connected to the heat dissipation end of the cooling device. The end of the heat dissipation conductive component 25 connected to the air duct is arranged circumferentially around the inner wall of the air duct, and multiple heat dissipation protrusions 251 are evenly arranged on the side facing the air duct. The heat dissipation conductive component 25 is preferably made of aluminum alloy. The heat dissipation protrusions 251 are designed to increase the heat dissipation surface area of ​​the heat dissipation conductive component 25 located within the air duct, thereby improving the heat dissipation effect. The cooling device is preferably a semiconductor cooling chip 27. A bracket 26 is provided inside the fan body, and the semiconductor cooling chip 27 is fixedly installed inside the fan body via the bracket 26.

[0022] The blower section 1 is provided with an air duct component 13, and the air duct is formed in the air duct component 13. The air duct component 13 is provided with a motor base 131, and a drive fan blade assembly 14 is installed on the motor base 131. The blower section 1 is provided with an air inlet 281 and an air outlet 221. An air inlet cover 15 is installed at the air inlet 281. The drive fan blade assembly 14 guides the air located at the air inlet 281 into the air duct and accelerates it to blow it out from the air outlet 221. The motor base 131 is coaxially arranged with the air duct. The circumferential part of the motor base 131 extends radially to form a cutting and pressurizing blade 132. The end of the cutting and pressurizing blade 132 away from the motor base 131 is connected to the inner wall of the air duct. The cutting and pressurizing blade 132 is a curved sheet. The virtual extension surface of the curved surface of the sheet intersects with the central axis of the air duct. When the drive fan blade assembly 14 is working, the air at the air inlet 281 is driven by the drive fan blade assembly 14 to form a high-speed airflow that blows toward the cutting and pressurizing blade 132 at a certain angle. The airflow is further pressurized and accelerated under the cutting and compression of the cutting and pressurizing blade 132, and then blown toward the air outlet 221.

[0023] An air guide 12 is provided at the air outlet 221. An expansion cavity 121 is coaxially provided on the inner side of the air guide 12. The circumferential part of the expansion cavity 121 extends radially to form an air guide blade 122. The end of the air guide blade 122 away from the expansion cavity 121 is connected to the inner wall of the air guide 12. The air guide blade 122 is a flat sheet material arranged parallel to the central axis of the air guide 12. When the airflow passes the air guide blade 122, it is guided by the air guide blade 122 to blow outward in a direction as parallel as possible to the central axis of the air outlet 221. A cavity cover 11 is installed at the opening of the expansion cavity 121. The expansion cavity 121 can be used to install a display screen or aromatherapy materials to enhance the function of the fan body.

[0024] The gripping part 2 is provided with a circuit board assembly 23 and a battery 24. The battery 24 is electrically connected to the circuit board assembly 23. The circuit board assembly 23 is arranged with a dot matrix LED light bead array. The gripping part 2 housing is provided with light-transmitting holes 222 corresponding to the LED light beads 231 on the LED light bead array. When the LED light beads 231 emit light, the light can be emitted outward from the light-transmitting holes 222. A light shield 232 is arranged around each LED light bead 231. The outer edge of the light shield 232 is tightly connected to the edge of the light-transmitting hole 222. A light-transmitting panel 21 is encapsulated on the outside of the light-transmitting hole 222. The circuit board assembly 23 is electrically connected with a control button 233 and a USB interface 234. The control button 233 and the USB interface 234 are both located in the through holes of the gripping part 2 housing and extend outward from the through holes. After pattern display data is implanted into the built-in chip of the circuit board assembly 23 via the USB interface 234, the LED lamp array can be activated by the control button 233 or the trigger signal of the mobile phone Bluetooth signal to generate the corresponding light-emitting pattern and display it to the outside through the light-transmitting panel 21. When the USB interface is connected to an external power supply, it can also charge the battery 24. The control button 233 can also be used to adjust and control the working status and working mode of the drive fan blade assembly 14 and the semiconductor cooling chip 27.

[0025] In summary, this utility model provides a cooling conduction plate 28 on the outer surface of the grip part 2. The cooling conduction plate 28 achieves a cooling effect after being activated by the cooling device. During the use of the device, consumers will not experience a stuffy feeling; on the contrary, the cooling effect of the fan can be enhanced by the cooling effect of the palm. At the same time, the heat generated during the energy exchange of the hot and cold semiconductors 27 can be dissipated in time by the high-speed airflow through the air duct, without heat accumulation. Therefore, the manufacturing cost of the heat dissipation mechanism can be saved without affecting the blowing effect, effectively saving the manufacturing cost of the cooling fan.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld cooling fan, comprising a fan body, the fan body including a blowing section (1) and a handheld section (2) connected to the lower end of the blowing section (1), wherein the blowing section (1) is provided with an air passage, and the handheld section (2) is provided with a receiving cavity, characterized in that: The fan body is provided with a cooling device, which includes a cooling output end and a heat dissipation end. The grip (2) is provided with a cooling conductor (28). The cooling conductor (28) is at least partially exposed on the outer surface of the grip (2) and can be touched by a person when holding it. The cooling output end of the cooling device is thermally connected to the cooling conductor (28). The fan body is provided with a heat dissipation conductor (25). The heat dissipation conductor (25) is connected to the air passage and the accommodating cavity. One end of the heat dissipation conductor (25) is connected to the internal space of the air passage, and the other end is thermally connected to the heat dissipation end of the cooling device.

2. A hand held cooling fan as claimed in claim 1 wherein: A bracket (26) is provided inside the fan body, and the cooling device is fixedly installed inside the fan body through the bracket (26).

3. A hand held cooling fan as claimed in claim 1 or 2 wherein: The cooling device is a semiconductor cooling chip (27).

4. A hand held cooling fan as claimed in claim 1 wherein: The blower (1) is provided with an air duct component (13) inside, the air duct is formed inside the air duct component (13), the air duct component (13) is provided with a motor base (131) inside, the motor base (131) is equipped with a drive fan blade assembly (14), the blower (1) is provided with an air inlet (281) and an air outlet (221), the drive fan blade assembly (14) guides the air located at the air inlet (281) into the air duct and accelerates it outward from the air outlet (221).

5. A hand held cooling fan as claimed in claim 4 wherein: The motor base (131) is coaxially arranged with the air duct. The circumferential part of the motor base (131) extends radially to form a wind-cutting and pressurizing blade (132). The end of the wind-cutting and pressurizing blade (132) away from the motor base (131) is connected to the inner wall of the air duct. The wind-cutting and pressurizing blade (132) is a curved sheet. The virtual extension surface of the curved surface of the curved sheet intersects with the central axis of the air duct.

6. A hand held cooling fan as claimed in claim 4 wherein: An air guide (12) is provided at the air outlet (221). An expansion cavity (121) is coaxially provided on the inner side of the air guide (12). The circumferential part of the expansion cavity (121) extends radially to form an air guide blade (122). The end of the air guide blade (122) away from the expansion cavity (121) is connected to the inner wall of the air guide (12). The air guide blade (122) is a flat sheet material arranged parallel to the central axis of the air guide (12). A cavity cover (11) is installed at the cavity opening of the expansion cavity (121).

7. A hand held cooling fan as claimed in claim 4 wherein: An air inlet cover (15) is installed at the air inlet (281).

8. A hand held cooling fan as claimed in claim 1 wherein: The grip (2) is provided with a circuit board assembly (23) and a battery (24). The battery (24) is electrically connected to the circuit board assembly (23). The circuit board assembly (23) is arranged with a dot matrix LED light bead array. The grip (2) housing has light-transmitting holes (222) respectively corresponding to the LED light beads (231) on the LED light bead array. When the LED light beads (231) emit light, the light can be emitted outward from the light-transmitting holes (222). (231) A light shield (232) is provided around the perimeter. The outer edge of the light shield (232) is closely connected to the edge of the light-transmitting hole (222). A light-transmitting panel (21) is encapsulated on the outside of the light-transmitting hole (222). The circuit board assembly (23) is electrically connected to a control button (233) and a USB interface (234). The control button (233) and the USB interface (234) are both located in the through hole of the holding part (2) housing and extend outward from the through hole.

9. A hand held cooling fan as claimed in claim 1 wherein: The heat dissipation conductive element (25) is connected to the air passage at one end and is arranged around the inner wall of the air passage in a circumferential manner. The side wall facing the air passage is formed by multiple heat dissipation protrusions (251) evenly arranged.

10. The hand-held cooling fan of claim 1, wherein: The fan body includes a front fan housing (22) and a rear fan housing that are connected to each other. The rear fan housing is the cooling conductor (28), which is a non-porous steel component or an aluminum alloy component.

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